1. The utility model provides a wooden furniture processing is with moulding device, includes conveying component (1), its characterized in that: the conveying assembly (1) comprises symmetrical concave seats (101), fixed columns (102) are mounted on the symmetrical inner sides of the concave seats (101), first rotating shafts (107) are arranged on the symmetrical fixed columns (102) in a rotating mode, two groups of symmetrical second rotating arms (108) distributed in an annular mode are mounted on the first rotating shafts (107), fixed blocks (109) are mounted at the other ends of the second rotating arms (108), a plurality of rollers (112) are mounted between the symmetrical fixed blocks (109), an L-shaped seat (113) is mounted on the side face of one side of the concave seat (101), symmetrical transmission shafts (114) are arranged on the L-shaped seat (113) in a rotating mode, a first gear (115) is mounted on the transmission shafts (114), and a grooved pulley (118) is mounted on the transmission shaft (114) on one side of the concave seats;

the glue pressing component (2) is arranged between the symmetrical concave seats (101), the glue pressing component (2) comprises a bottom box (201), a second rotating shaft (202) is arranged at the upper end inside the bottom box (201) in a rotating mode, symmetrical second gears (203) are arranged on the second rotating shaft (202), first racks (204) which are staggered and symmetrical are meshed with the second gears (203), a first limiting strip (205) is arranged on one side of the first rack (204), a supporting block (206) is arranged at one end of the first limiting strip (205), a pressing plate (209) is arranged above the supporting block (206), a rotating rod (213) is arranged at the lower end inside the bottom box (201) in a rotating mode, first screw rods (214) are arranged at two ends of the rotating rod (213), a moving block (216) is arranged on the first screw rods (214) in a thread clamping mode, a second screw rod (217) is arranged on the moving block (216) in a thread mode, one end of the second screw rod (217) is provided with a clamping plate (219).

2. The gluing device for wood furniture processing according to claim 1, wherein the first rotating shaft (107) is rotatably arranged on the concave base (101) through a bearing, the outer ring of the fixed column (102) is provided with an annular bearing (103), the outer side of the annular bearing (103) is provided with a ring (104), one side of the ring (104) is provided with a plurality of first rotating arms (105) in an annular step manner, a limiting ring (106) is arranged between the first rotating arms (105) and the fixed block (109), and the first rotating arms (105) and the second rotating arms (108) are rotatably connected with the fixed block (109) through screws and nuts.

3. The glue pressing device for processing wooden furniture as claimed in claim 1, wherein a connecting rod (111) penetrates through the inside of the roller (112), two ends of the connecting rod (111) are fixedly connected with symmetrical fixing blocks (109), and a baffle (110) is arranged on one side of the symmetrical fixing blocks (109).

4. The gluing device for processing wooden furniture as claimed in claim 1, wherein the first gear (115) on the transmission shaft (114) is engaged with each other, the transmission shaft (114) is rotatably disposed on the concave base (101) and the L-shaped base (113) on one side through a bearing, the outer ring of the sheave (118) is provided with a disc (119) with a notch angle, the center of the disc (119) with a driving shaft (123) is provided with a third rotating arm (120) on the outer side of the driving shaft (123), the other end of the third rotating arm (120) is provided with a limiting column (121), the limiting column (121) can be slidably disposed on the sheave (118), the other end of the driving shaft (123) is provided with a motor (122), and the motor (122) is fixedly disposed on one side of the L-shaped base (113).

5. The glue pressing device for processing wooden furniture as claimed in claim 1, synchronizing wheels (116) are respectively arranged on the transmission shaft (114) and one end of the first rotating shaft (107), a synchronizing belt (117) is sleeved on the synchronizing wheel (116) at one end of the first rotating shaft (107) on one side and the synchronizing wheel (116) on the transmission shaft (114) on one side, a fixed shaft is arranged on the side surface of the concave seat (101) on the other side, be equipped with two synchronizing wheel (116) on the fixed axle, two synchronizing wheel (116) rotate through single bearing and set up on the fixed axle, the opposite side synchronizing wheel (116) of first axis of rotation (107) one end and a fixed epaxial synchronizing wheel (116) go up the cover and are equipped with hold-in range (117), the opposite side synchronizing wheel (116) on transmission shaft (114) and another synchronizing wheel (116) on the fixed axle go up the cover and are equipped with hold-in range (117).

6. The glue pressing device for processing wooden furniture according to claim 1, wherein the second rotating shaft (202) is rotatably arranged inside the bottom case (201) through a bearing, the first rack (204) and the first limiting strip (205) are slidably arranged on the bottom case (201), a fixed seat (207) is installed at the top end of the supporting block (206), a plurality of moving rods (208) are slidably arranged on the side surface of the fixed seat (207), a limiting piece is installed at one end of each moving rod (208), the other ends of the plurality of moving rods (208) are fixedly connected with one side of the pressing plate (209), a spring (210) is sleeved on each moving rod (208), and two ends of each spring (210) are fixedly connected with one side of the pressing plate (209) and one side of the fixed seat (207) respectively.

7. The gluing device for processing wooden furniture according to claim 1, wherein the symmetrical first screw rods (214) have opposite threads, the symmetrical first guide rods (215) are respectively installed on the symmetrical two sides of the bottom case (201), the moving block (216) is slidably arranged on the symmetrical first guide rods (215), the symmetrical second guide rods (218) are slidably arranged on the moving block (216), one end of the symmetrical second guide rods (218) is fixedly connected with the side surface of the clamping plate (219), and one end of the second screw rod (217) is rotatably arranged on the clamping plate (219) through a bearing.

8. The gluing device for processing wooden furniture as claimed in claim 1, wherein a symmetrical third gear (211) is arranged on the second rotating shaft (202), a symmetrical fourth gear (212) is arranged on the rotating rod (213), the third gear (211) is meshed with the fourth gear (212), a second rack (220) is meshed with the bottom end of the fourth gear (212) on one side, a second limiting strip (221) is installed at the bottom end of the second rack (220), the second rack (220) and the second limiting strip (221) are slidably arranged on the bottom box (201), a connecting block (222) is installed at the bottom end of the second limiting strip (221), an air cylinder (223) is installed at the bottom end inside the bottom box (201), and the telescopic end of the air cylinder (223) is fixedly connected with the connecting block (222).

9. The gluing device for wood furniture processing according to claim 1, wherein a plurality of rollers (112) on the symmetrical female seat (101) can rotate to both sides of the top end of the bottom box (201).

Background

Furniture refers to a large variety of appliances and facilities essential for maintaining normal life, practicing production practice and developing social activities, and is an important basis for establishing working and living spaces along with the continuous development and innovation of times, so that the furniture is various in door types, different in materials, complete in variety and different in use, at present, people often select some furniture to fill the living spaces of people in the process of decorating new houses, the furniture is various in variety, wherein the wooden furniture becomes the first choice in the process of decorating people, the wooden furniture not only has the characteristics of health and environmental protection, but also has long service life, in the process of producing and processing the wooden furniture, the boards of the wooden furniture are often required to be subjected to glue pressing and bonding, and a glue pressing device for processing the wooden furniture is used, however, when the glue pressing device for processing the wooden furniture in the market is used for glue pressing, automatic glue pressing cannot be performed.

Disclosure of Invention

The invention aims to provide a glue pressing device for processing wooden furniture, which aims to solve the problems in the background technology.

In order to solve the technical problems, the invention adopts the following technical scheme: the glue pressing device for processing wooden furniture comprises a conveying assembly, wherein the conveying assembly comprises symmetrical concave seats, fixed columns are arranged on the symmetrical inner sides of the concave seats, first rotating shafts are arranged on the symmetrical fixed columns in a rotating mode, two groups of symmetrical second rotating arms distributed in an annular mode are arranged on the first rotating shafts, fixed blocks are arranged at the other ends of the second rotating arms, a plurality of rollers are arranged between the symmetrical fixed blocks, an L-shaped seat is arranged on the side surface of the concave seat on one side, symmetrical transmission shafts are arranged on the L-shaped seat in a rotating mode, a first gear is arranged on each transmission shaft, and a grooved pulley is arranged on each transmission shaft on one side;

symmetry install the moulding subassembly between the concave type seat, the moulding subassembly is including the under casing, the inside upper end of under casing is rotated and is equipped with the second axis of rotation, be equipped with the second gear of symmetry in the second axis of rotation, the meshing of second gear has the first rack of dislocation symmetry, first spacing is installed to first rack one side, the supporting shoe is installed to first spacing one end, the clamp plate is installed to the supporting shoe top, the inside lower extreme of under casing rotates and is equipped with the dwang, first screw rod is all installed at the dwang both ends, the thread clamp is equipped with the movable block on the first screw rod, the screw thread is equipped with the second screw rod on the movable block, second screw rod one end is equipped with splint.

Preferably, the first rotating shaft is rotatably arranged on the concave seat through a bearing, an annular bearing is arranged on the outer ring of the fixed column, a circular ring is arranged on the outer side of the annular bearing, a plurality of first rotating arms are annularly arranged on one side of the circular ring step by step, a limiting ring is arranged between each first rotating arm and the fixed block, and the first rotating arm and the second rotating arm are rotatably connected with the fixed block through screws and nuts.

Preferably, a connecting rod penetrates through the inside of the roller, two ends of the connecting rod are fixedly connected with the symmetrical fixing blocks, and the baffle plates are arranged on one sides of the symmetrical fixing blocks.

Preferably, epaxial first gear intermeshing of transmission, the transmission shaft passes through the bearing and rotates the setting on the concave type seat and the L type seat of one side, the sheave outer lane is equipped with the unfilled corner disc, unfilled corner disc center department installs the drive shaft, the third rocking arm is installed in the drive shaft outside, spacing post is installed to the third rocking arm other end, spacing post can slide and set up on the sheave, the motor is installed to the drive shaft other end, motor fixed mounting is in L type seat one side.

Preferably, all install synchronizing wheel, one side on the transmission shaft with first axis of rotation one end the synchronizing wheel of first axis of rotation one end is equipped with the hold-in range on the driven epaxial synchronizing wheel of one side, the opposite side concave type seat side-mounting has the fixed axle, be equipped with two synchronizing wheels on the fixed axle, two the synchronizing wheel rotates through single bearing and sets up on the fixed axle, the opposite side the cover is equipped with the hold-in range on the synchronizing wheel of first axis of rotation one end and the fixed epaxial synchronizing wheel, the opposite side the cover is equipped with the hold-in range on the driven epaxial synchronizing wheel and the fixed epaxial another synchronizing wheel.

Preferably, the second axis of rotation passes through the bearing and rotates the setting inside the under casing, first rack and first spacing slip the setting on the under casing, the fixing base is installed on the supporting shoe top, the fixing base side slides and runs through there are a plurality of carriage release lever, spacing piece, a plurality of are installed to carriage release lever one end the carriage release lever other end and clamp plate one side fixed connection, the cover is equipped with the spring on the carriage release lever, the spring both ends respectively with clamp plate one side and fixing base one side fixed connection.

Preferably, the symmetrical first screw rods are opposite in thread, symmetrical first guide rods are mounted on two symmetrical sides of the bottom box, the moving block is arranged on the symmetrical first guide rods in a sliding mode, symmetrical second guide rods are arranged on the moving block in a sliding mode, one ends of the symmetrical second guide rods are fixedly connected with the side face of the clamping plate, and one ends of the second screw rods are rotatably arranged on the clamping plate through bearings.

Preferably, be equipped with the third gear of symmetry in the second axis of rotation, be equipped with the fourth gear of symmetry on the dwang, third gear and fourth gear engagement, one side fourth gear bottom meshing has the second rack, the spacing of second is installed to second rack bottom, the second rack slides with the spacing setting of second on the under casing, the connecting block is installed to the spacing bottom of second, the cylinder is installed to the inside bottom of under casing, the flexible end of cylinder and connecting block fixed connection.

Preferably, a plurality of rollers on the symmetrical concave seats can rotate to two sides of the top end of the bottom box.

Compared with the prior art, the invention has the beneficial effects that:

1. the wood floor board sliding device has the advantages that the motor is used for driving the single transmission shaft to rotate, the first gears are meshed with each other, the symmetrical transmission shafts are used for driving the symmetrical first rotating shafts to rotate oppositely, the first rotating shafts are used for driving the wood floor board to move to the two sides of the bottom box, and the wood floor board can slide to the top end of the bottom box by gravity;

2. the clamping plates are driven to move oppositely by rotating the rotating rod, the two ends of the wood board are clamped and limited, and the length of the wood board which can be clamped is adjusted by rotating the second screw rod;

3. according to the invention, the third gear rotates to drive the second gear to rotate simultaneously, the second gear rotates to drive the fixed seats to move oppositely and push the moving rod and the compression spring, so that the pressing plate extrudes the wood boards, and two wood boards with glue on the side surfaces are extruded mutually and tightly attached.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic front view of the present invention.

FIG. 2 is a schematic cross-sectional view of the glue pressing assembly of the present invention.

FIG. 3 is an enlarged view of the structure at A in FIG. 1 according to the present invention.

FIG. 4 is an enlarged view of the structure at B in FIG. 1 according to the present invention.

FIG. 5 is an enlarged view of the structure at C of FIG. 1 according to the present invention.

FIG. 6 is an enlarged view of the structure shown at D in FIG. 2 according to the present invention.

FIG. 7 is an enlarged view of the structure at E in FIG. 2 according to the present invention.

In the figure: 1. a delivery assembly; 101. a concave seat; 102. fixing a column; 103. an annular bearing; 104. a circular ring; 105. a first rotating arm; 106. a limiting ring; 107. a first rotating shaft; 108. a second rotating arm; 109. a fixed block; 110. a baffle plate; 111. a connecting rod; 112. a drum; 113. an L-shaped seat; 114. a drive shaft; 115. a first gear; 116. a synchronizing wheel; 117. a synchronous belt; 118. a grooved wheel; 119. a unfilled corner disc; 120. a third rotating arm; 121. a limiting column; 122. a motor; 123. a drive shaft; 2. a glue pressing component; 201. a bottom box; 202. a second rotating shaft; 203. a second gear; 204. a first rack; 205. a first limit strip; 206. a support block; 207. a fixed seat; 208. a travel bar; 209. pressing a plate; 210. a spring; 211. a third gear; 212. a fourth gear; 213. rotating the rod; 214. a first screw; 215. a first guide bar; 216. a moving block; 217. a second screw; 218. a second guide bar; 219. a splint; 220. a second rack; 221. a second limit strip; 222. connecting blocks; 223. and a cylinder.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1-7, the invention provides a glue pressing device for processing wooden furniture, comprising a conveying assembly 1, wherein the conveying assembly 1 comprises symmetrical concave seats 101, fixing columns 102 are respectively installed on the symmetrical inner sides of the concave seats 101, first rotating shafts 107 are rotatably installed on the symmetrical fixing columns 102, two groups of second rotating arms 108 which are distributed in an annular shape are installed on the first rotating shafts 107, fixing blocks 109 are installed at the other ends of the second rotating arms 108, the first rotating shafts 107 are rotatably installed on the concave seats 101 through bearings, annular bearings 103 are installed on the outer rings of the fixing columns 102, circular rings 104 are installed on the outer sides of the annular bearings 103, a plurality of first rotating arms 105 are annularly arranged on one side of each circular ring 104 in a stepping mode, limiting rings 106 are installed between the first rotating arms 105 and the fixing blocks 109, the first rotating arms 105 and the second rotating arms 108 are rotatably connected with the fixing blocks 109 through screws and nuts, boards are transported, and can move to the two sides of a bottom box 201 in a fixed direction, a plurality of rollers 112 are arranged between the symmetrical fixed blocks 109, a connecting rod 111 penetrates through the inside of each roller 112, two ends of each connecting rod 111 are fixedly connected with the corresponding fixed blocks 109, one side of each symmetrical fixed block 109 is provided with a baffle 110, and the rollers 112 are used for enabling the wood board to slide.

An L-shaped seat 113 is arranged on the side surface of a concave seat 101 on one side of the invention, a symmetrical transmission shaft 114 is rotatably arranged on the L-shaped seat 113, a first gear 115 is arranged on the transmission shaft 114, the first gear 115 on the transmission shaft 114 is mutually engaged, the transmission shaft 114 is rotatably arranged on the concave seat 101 and the L-shaped seat 113 on one side through a bearing, an unfilled corner disc 119 is arranged on the outer ring of a grooved wheel 118, a driving shaft 123 is arranged at the center of the unfilled corner disc 119, a third rotating arm 120 is arranged on the outer side of the driving shaft 123, a limiting column 121 is arranged at the other end of the third rotating arm 120, the limiting column 121 can be slidably arranged on the grooved wheel 118, a motor 122 is arranged at the other end of the driving shaft 123, the motor 122 is fixedly arranged on one side of the L-shaped seat 113, the grooved wheel 118 is arranged on the transmission shaft 114 on one side, the transmission shaft 114 is driven by the motor 122 to intermittently rotate, a synchronizing wheel 116 is arranged on the transmission shaft 114 and one end of a first rotating shaft 107, a synchronous belt 117 is sleeved on a synchronous wheel 116 at one end of the first rotating shaft 107 at one side and the synchronous wheel 116 on the transmission shaft 114 at one side, a fixed shaft is installed on the side surface of the concave seat 101 at the other side, two synchronous wheels 116 are arranged on the fixed shaft, the two synchronous wheels 116 are rotatably arranged on the fixed shaft through a single bearing, a synchronous belt 117 is sleeved on the synchronous wheel 116 at one end of the first rotating shaft 107 at the other side and the synchronous wheel 116 on the fixed shaft, a synchronous belt 117 is sleeved on the synchronous wheel 116 on the transmission shaft 114 at the other side and the other synchronous wheel 116 on the fixed shaft, and the synchronous belt 117 is sleeved on the synchronous wheel 116, so that the transmission shaft 114 can drive the symmetrical first rotating.

The invention is characterized in that a glue pressing component 2 is arranged between symmetrical concave seats 101, the glue pressing component 2 comprises a bottom box 201, a second rotating shaft 202 is rotatably arranged at the upper end in the bottom box 201, a symmetrical second gear 203 is arranged on the second rotating shaft 202, a staggered symmetrical first rack 204 is meshed with the second gear 203, a first limit strip 205 is arranged at one side of the first rack 204, a supporting block 206 is arranged at one end of the first limit strip 205, a pressing plate 209 is arranged above the supporting block 206, the pressing plate 209 is driven to move oppositely by the rotation of the second gear 203, the second rotating shaft 202 is rotatably arranged in the bottom box 201 through a bearing, the first rack 204 and the first limit strip 205 are slidably arranged on the bottom box 201, a fixed seat 207 is arranged at the top end of the supporting block 206, a plurality of moving rods 208 are slidably penetrated through the side surface of the fixed seat 207, a limit piece is arranged at one end of the moving rods 208, the other ends of the plurality of the moving rods 208 are fixedly connected with one side of the pressing plate 209, the movable rod 208 is sleeved with a spring 210, two ends of the spring 210 are respectively fixedly connected with one side of the pressing plate 209 and one side of the fixed seat 207, and the pressing plate 209 is utilized to compress the spring 210 to press the surfaces of the two wood boards which are stained with glue.

The lower end of the inside of a bottom box 201 of the invention is rotatably provided with a rotating rod 213, both ends of the rotating rod 213 are provided with a first screw 214, the first screw 214 is provided with a moving block 216 in a threaded manner, the moving block 216 is provided with a second screw 217 in a threaded manner, one end of the second screw 217 is provided with a clamping plate 219, the threads of the symmetrical first screws 214 are opposite, both symmetrical sides of the bottom box 201 are provided with symmetrical first guide rods 215, the moving block 216 is slidably arranged on the symmetrical first guide rods 215, the moving block 216 is slidably provided with symmetrical second guide rods 218, one end of the symmetrical second guide rods 218 is fixedly connected with the side surface of the clamping plate 219, one end of the second screw 217 is rotatably arranged on the clamping plate 219 through a bearing, the distance between the symmetrical clamping plates 219 is adjusted by rotating the second screw 217, the symmetrical third gear 211 is arranged on the second rotating shaft 202, the rotating rod 213 is provided with a symmetrical fourth gear 212, and the third gear 211 is meshed with the fourth gear 212, the meshing of fourth gear 212 bottom of one side has second rack 220, the spacing strip 221 of second is installed to second rack 220 bottom, second rack 220 slides with the spacing strip 221 of second and sets up on under casing 201, connecting block 222 is installed to the spacing strip 221 bottom of second, cylinder 223 is installed to the inside bottom of under casing 201, the flexible end of cylinder 223 and connecting block 222 fixed connection, utilize cylinder 223 to drive third gear 211 and fourth gear 212 and rotate, a plurality of cylinder 112 on the concave seat 101 can rotate to under casing 201 top both sides, make the plank can slide to under casing 201 top.

According to the invention, a wood board coated with glue on the side surface is conveyed to a plurality of rollers 112 on the top layer of a symmetrical concave seat 101 by using a conveying belt, a motor 122 is used for driving a driving shaft 123 to rotate, the driving shaft 123 rotates to drive a third rotating arm 120 and a unfilled corner disc 119 to rotate, the third rotating arm 120 rotates to drive a limiting column 121 to rotate circumferentially, the limiting column 121 slides on a grooved wheel 118 to drive the grooved wheel 118 to rotate intermittently, the unfilled corner disc 119 is arranged at the edge of the grooved wheel 118 in a sliding manner, so that the grooved wheel 118 can only rotate under the rotation of the limiting column 121, the grooved wheel 118 rotates to drive a single transmission shaft 114 to rotate, a first gear 115 is used for mutual meshing, so that the symmetrical transmission shafts 114 can rotate oppositely, the transmission shafts 114 are sleeved with a synchronizing wheel 116 by using a synchronous belt 117, and the first rotating shafts 107 on the symmetrical concave seat 101 rotate oppositely;

the first rotating shaft 107 rotates to drive the second rotating arms 108 which are symmetrically distributed in a ring shape to rotate, the fixed block 109 connected with the other ends of the second rotating arms 108 rotates along with the second rotating shafts, the first rotating arms 105 connected with the fixed block 109 rotate along with the first rotating arms 105, the ring 104 connected with the other ends of the first rotating arms 105 rotates on the ring-shaped bearing 103, so that the fixed block 109 always keeps moving upwards when doing circular motion, the symmetrical fixing blocks 109 do circular motion to drive the wood boards on the roller 112 to move, when the wood boards are driven to move to the two sides of the bottom box 201, by using gravity, the wood board slides to the top end of the bottom box 201 along the first rotating arm 105, the second rotating arm 108 and the roller 112, at this time, the air cylinder 223 extends out to drive the second rack 220 to move on the bottom box 201 along the direction of the second limiting strip 221, the second rack 220 moves to drive the fourth gear 212 to rotate, and the fourth gear 212 rotates to drive the rotating rod 213 and the third gear 211 to rotate;

the rotating rod 213 rotates to drive the first screw rods 214 at the two ends to rotate simultaneously, the first screw rods 214 rotate to drive the moving block 216 to move along the direction of the first guide rod 215, the moving block 216 moves to drive the second screw rods 217 and the second guide rods 218 to move, the clamping plates 219 at the other ends of the second screw rods 217 and the second guide rods 218 move along with the moving block, so that the two ends of the wood board can be clamped and limited by the symmetrical clamping plates 219, and the clamping plates 219 move along the direction of the second guide rods 218 by rotating the second screw rods 217 to adjust the length of the wood board which can be clamped;

the third gear 211 rotates to drive the second rotating shaft 202 to rotate, the second gear 203 rotationally symmetric with the second rotating shaft 202 rotates simultaneously, the second gear 203 rotates to drive the first rack 204 which is staggered and symmetric to move oppositely along the direction of the first limiting strip 205, the supporting block 206 on the first limiting strip 205 moves along with the first rack, the supporting block 206 moves to drive the fixing seat 207 to move, the fixing seat 207 moves to drive the pressing plate 209 to move towards the wood board, the pressing plate 209 is in contact with the wood board and pushes the moving rod 208 and the compression spring 210, so that the pressing plate 209 extrudes the wood board, two wood boards with glue on the side surfaces are extruded mutually, and the two wood boards are tightly attached.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.