1. A tensioning device for an automated conveying apparatus, comprising a roller (1), characterized in that: the both sides of roller (1) are provided with quick-witted wall (2), the inner chamber fixed mounting of quick-witted wall (2) has magnetic powder brake (3) that are located roller (1) right-hand member, and the middle part of magnetic powder brake (3) and the right-hand member activity of roller (1) cup joint, the middle part movable mounting of roller (1) inner chamber has axis (4), the left end and the left side machine wall (2) of axis (4) are fixed to be cup jointed, and the outer fixed surface of axis (4) left end is connected with the lug that is the slope form, and the right-hand member of roller (1) inner chamber is provided with working chamber (5), blow hole (6) with external and working chamber (5) intercommunication are seted up to the right-hand member of roller (1), the middle part activity of roller (1) inner chamber has cup jointed movable block (7) that are located axis (4) end surface.

2. A tensioning device for an automated conveying apparatus according to claim 1, characterized in that: air suction groove (8) have been seted up at the middle part of roller (1) lateral wall, air suction groove (8) the middle part and the external world through the trompil intercommunication, and the trompil aperture is less, intercommunication hole (9) intercommunication is passed through in the inboard of air suction groove (8) and the outside of working chamber (5), and intercommunication hole (9) are the one-way hole of outside-in one-way switch-on, the one-way hole of air blow hole (6) for inside-out one-way switch-on.

3. A tensioning device for an automated conveying apparatus according to claim 2, characterized in that: the utility model discloses a magnetic particle separator, including roller (1), connecting block (10) and magnetic powder brake (3), the both sides fixedly connected with and connecting block (10) of roller (1) and the middle part movable mounting of left side machine wall (2) have bellows (13), negative pressure groove (11) with air suction groove (8) and bellows (13) inner chamber intercommunication are seted up in the outside of roller (1) lateral wall, ball (12) that are located negative pressure groove (11) inboard are placed in the inner chamber activity of air suction groove (8), spring (14) swing joint is passed through to the right-hand member of left side machine wall (2) and the inner chamber of axis (4) left end.

4. A tensioning device for an automated conveying apparatus according to claim 1, characterized in that: the machine wall (2) and the middle shaft (4) as well as the joints of the magnetic powder brake (3) and the roll shaft (1) are all in a cross shape.

5. A tensioning device for an automated conveying apparatus according to claim 1, characterized in that: the number of the movable blocks (7) is four to six, and the right ends of the movable blocks (7) are positioned in different working cavities (5).

Background

When the wire and cable, textile, metal processing, papermaking and the like are processed, winding is an important process, the diameter of a winding drum is gradually increased when a product is wound, the tension of the wound product is kept unchanged in the whole process, the wire diameter of a wire can be thinned or even broken when the tension is too large, or the thickness of the product is uneven, the winding can be loosened when the tension is too small, the winding of the material is influenced, and then tension adjusting equipment is needed to adjust the tension.

The magnetic powder brake is tension adjusting equipment commonly used in a traditional tension control system, an electromagnetic field is generated after a direct current power supply is switched on, working medium magnetic powder forms a magnetic powder chain under the action of magnetic lines of force, an inner rotor and an outer rotor are connected, and therefore the purposes of transmitting and braking torque are achieved, and further friction force when a roller shaft rotates is controlled, and the effect of tension control is achieved.

Traditional magnetic powder brake is at normal during operation, because automatic conveying equipment needs work for a long time, the temperature that leads to magnetic powder brake can rise gradually, thereby make the magnetic demagnetization, and then influence magnetic powder brake's normal work, so need add the normal work of establishing cooling device in order to ensure magnetic powder brake simultaneously, can lead to processing and maintenance cost to improve greatly, simultaneously when carrying the material, can appear skidding between material and the roller, thereby lead to tension to adjust phenomenons such as change, influence automation equipment's tension control, thereby influence the normal transport of material, and when carrying the material, the phenomenon that the material takes place the skew on the roller surface can appear usually, lead to the unable normal transport of material or influence the condition emergence of coiling quality.

Disclosure of Invention

Aiming at the defects of the existing tension adjusting equipment in the background technology in the using process, the invention provides a tension adjuster for automatic conveying equipment, which has the advantages of auxiliary cooling, negative pressure adsorption and deviation adjustment, and solves the technical problems that the working life and material deviation are influenced by overhigh temperature of a magnetic powder brake when the tension adjusting equipment is in normal use, and the winding efficiency and quality are influenced by slipping of the material.

The invention provides the following technical scheme: the utility model provides a tension adjuster for automizing conveying equipment, includes the roller, the both sides of roller are provided with quick-witted wall, the inner chamber fixed mounting of machine wall has the magnetic powder brake who is located the roller right-hand member, and the middle part of magnetic powder brake and the right-hand member activity of roller cup joint, the middle part movable mounting of roller inner chamber has the axis, centraxonial left end and left side machine wall are fixed to be cup jointed, and the outer fixed surface of axis left end is connected with and is the lug of slope form, and the right-hand member of roller inner chamber is provided with the working chamber, the air blow hole with external and working chamber intercommunication is seted up to the right-hand member of roller, the movable block that is located axis end surface is cup jointed in the middle part activity of roller inner chamber.

Preferably, the middle part of the side wall of the roller shaft is provided with an air suction groove, the middle part of the air suction groove is communicated with the outside through a hole, the hole diameter of the hole is small, the inner side of the air suction groove is communicated with the outer side of the working cavity through a communicating hole, the communicating hole is a one-way hole which is in one-way conduction from outside to inside, and the air blowing hole is a one-way hole which is in one-way conduction from inside to outside.

Preferably, the middle movable mounting of roller and left side machine wall has the connecting block, the both sides fixedly connected with and the connecting block of roller and magnetic powder brake swing joint have the bellows, the negative pressure groove with air suction groove and bellows inner chamber intercommunication is seted up in the outside of roller lateral wall, the ball that is located the negative pressure inslot side is placed in the inner chamber activity of air suction groove, the right-hand member of left side machine wall and the inner chamber of axis left end pass through spring swing joint.

Preferably, the machine wall and the middle shaft as well as the joints of the magnetic powder brake and the roll shaft are in a cross shape.

Preferably, the number of the movable blocks is four to six, and the right ends of the movable blocks are positioned in different working cavities.

The invention has the following beneficial effects:

1. according to the invention, the auxiliary cooling mechanism is arranged, so that when materials are normally conveyed, the roller shaft synchronously rotates along with the materials, the movable block in the direction contacting with the materials during rotation moves leftwards under the action of the annular inclined lug on the outer surface of the left end of the central shaft, so that gas is sucked in the working cavity, and when the movable block rotates to the position opposite to the material contacting direction, the movable block moves rightwards under the action of the lug, so that the gas in the working cavity is discharged outwards through the gas blowing hole, and the magnetic powder brake is cooled under the action of air cooling, so that the phenomenon that the working life of the magnetic powder brake is damaged and the working efficiency is influenced due to overhigh internal temperature after the magnetic powder brake works for a long time is avoided.

2. According to the invention, the negative pressure adsorption mechanism is arranged, so that when materials are normally conveyed, the movable block on the side contacting with the materials is enabled to move leftwards under the action of the auxiliary cooling mechanism, and negative pressure is formed in the working cavity, so that the working cavity can only suck air through the air suction groove and the communicating hole under the action of one-way conduction of the air blowing hole, and the materials and the roll shaft are adsorbed together under the action of negative pressure suction under the action of the contact of the outer side opening and the materials, thereby enhancing the friction force between the materials and the roll shaft, and avoiding the situation that the tension control efficiency is influenced due to the slippage between the materials and the roll shaft.

3. According to the invention, by arranging the deviation adjusting mechanism, when the material to be conveyed deviates, the negative pressure adsorption mechanism cannot normally work under the action that one side of the negative pressure adsorption mechanism is opened to suck air inwards, and gas can circulate into the air suction groove through the opening under the action that only one side can suck air, so that the working cavity is filled with negative pressure, the negative pressure groove on the side capable of normally sucking air is closed under the action of the balls, the corrugated pipe is slowly compressed under the action of the negative pressure suction force on the other side, and the roller shaft drives the side with axial material deviation to move, so that the material is slowly adjusted to the normal position under the action of the negative pressure suction force, the friction force and the automatic resetting of the spring, and the phenomenon of deviation in the material conveying process is avoided, and the material cannot be normally wound.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a side cross-sectional structural view of the present invention;

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

In the figure: 1. a roll shaft; 2. a machine wall; 3. a magnetic powder brake; 4. a middle shaft; 5. a working chamber; 6. a gas blowing hole; 7. a movable block; 8. a suction groove; 9. a communicating hole; 10. connecting blocks; 11. a negative pressure tank; 12. a ball bearing; 13. a bellows; 14. a spring.

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.

Referring to fig. 1-3, a tension adjuster for an automatic conveying device comprises a roll shaft 1, machine walls 2 are arranged on two sides of the roll shaft 1, a magnetic powder brake 3 located at the right end of the roll shaft 1 is fixedly installed in an inner cavity of the machine walls 2, and the middle of the magnetic powder brake 3 is movably sleeved with the right end of the roll shaft 1, so that the rotation speed of the roll shaft 1 can be controlled through the magnetic powder brake 3, and the like, thereby controlling the tension of a material located on the surface of the roll shaft 1, a middle shaft 4 is movably installed in the middle of the inner cavity of the roll shaft 1, the left end of the middle shaft 4 is fixedly sleeved with the left machine wall 2, when the material drives the roll shaft 1 to rotate, the middle shaft 4 cannot rotate, an inclined convex block is fixedly connected to the outer surface of the left end of the middle shaft 4, the convex block is in a circular ring shape, a working cavity 5 is arranged at the right end of the inner cavity of the roll shaft 1, and an air blowing hole 6 for communicating the outside with the working cavity 5 is arranged at the right end of the roll shaft-1, make the interior gas of working chamber 5 can outwards discharge through gas hole 6, and make wind-force blow the left side of magnetic powder brake 3, thereby make magnetic powder brake 3's intensification efficiency reduce under the effect of forced air cooling heat transfer, the middle part activity of the 1 inner chamber of roller has cup jointed the movable block 7 that is located axis 4 end surface, make can drive movable block 7 and encircle axis 4 and rotate when axis 4 pivoted, and under the effect of axis 4 outside lug, make movable block 7 constantly carry out reciprocating motion left and right, thereby make the interior gas of working chamber 5 constantly outwards discharge through gas hole 6, and then constantly carry out the forced air cooling heat transfer to magnetic powder brake 3.

Wherein, the middle part of the side wall of the roller shaft 1 is provided with an air suction groove 8, the middle part of the air suction groove 8 is communicated with the outside through an opening, the aperture of the opening is smaller, the openings are symmetrically arranged by the cross section of the roller shaft 1, so that the negative pressure suction force on two sides of the material is the same, the condition that the negative pressure suction force of the material is uneven and the deflection occurs is avoided, and the working stability of the negative pressure adsorption mechanism is ensured, the inner side of the air suction groove 8 is communicated with the outer side of the working cavity 5 through a communication hole 9, so that when the auxiliary cooling mechanism normally works, the air can be sucked into the working cavity 5 only through the air suction groove 8 and the communication hole 9 for negative pressure filling, and when the negative pressure is generated in the working cavity 5, the material to be conveyed is clung to the outer surface of the roller shaft 1 under the action of the negative pressure suction, thereby increasing the friction force between the air suction groove and the outer surface under the action of the pressure increase, and then avoided the phenomenon that can not appear skidding when the material is carried, and the intercommunicating pore 9 is outside-in one-way hole of switching on for when supplementary cooling body normally worked, there is not gaseous outwards to discharge through slot 8 and intercommunicating pore 9 of breathing in, thereby ensured supplementary cooling body's cooling efficiency, gas hole 6 is the one-way hole of switching on from inside to outside one-way, make gas hole 6 department only can outwards discharge gas, thereby ensured negative pressure adsorption device's job stabilization nature.

Wherein, the middle parts of the roller shaft 1 and the left machine wall 2 are movably provided with a connecting block 10, the connecting block 10 is movably sleeved with the roller shaft 1, the connecting block 10 synchronously rotates along with the roller shaft 1, two sides of the roller shaft 1 are fixedly connected with corrugated pipes 13 which are movably connected with the connecting block 10 and the magnetic powder brake 3, so that the roller shaft 1 can drive the connecting block-10 and the corrugated pipes 13 to synchronously rotate, the outer side of the side wall of the roller shaft 1 is provided with a negative pressure groove 11 which communicates the suction groove 8 with the inner cavity of the corrugated pipes 13, when the negative pressure suction is generated in the suction groove 8, the corrugated pipes 13 at two sides can be subjected to the negative pressure suction, and when the negative pressure suction at one side is larger than the other side, the roller shaft 1 can move to the side with larger suction under the action of the negative pressure suction, the inner cavity of the suction groove 8 is movably provided with a ball 12 which is positioned at the inner side of the negative pressure groove 11, the diameter of the ball 12 is the same as that of the negative pressure groove 11, and the groove 11 is positioned below the outermost side opening hole which communicates with the outside, when the trompil inwards breathes in, ball 12 can move to the outside under the effect of gas impact to block up negative pressure groove 11, the right-hand member of left side machine wall 2 and the inner chamber of axis 4 left end pass through spring 14 swing joint, make after automatic conveying equipment accomplishes the off tracking adjustment, under the spring action of spring 14, can make axis 4 drive roller 1 automatically and resume to the normality position, thereby ensured tension adjusting device's automatic recovery ability.

Wherein, machine wall 2 and axis 4 and magnetic powder brake 3 all are "ten" font with roller 1 junction for the motion state of machine wall 2 and axis 4 is unanimous, and the connection state of magnetic powder brake 3 and roller 1 is unanimous, thereby has ensured when magnetic powder brake 3 adjusts the rotational speed of roller 1, and axis 4 can remain the same motionless state with machine wall 2 all the time, thereby has ensured the job stabilization nature of whole mechanism.

The number of the movable blocks 7 is four to six, and the right ends of the movable blocks 7 are located in different working chambers 5, so that when the movable blocks 7 move left and right under the action of the convex blocks on the outer surface of the middle shaft 4, negative pressure suction force can be generated independently in the corresponding working chambers 5, wind force can be blown outwards, materials are adsorbed, and the magnetic powder brake 3 is cooled, so that the situation that the whole mechanism cannot work normally due to the fact that the same working chamber 5 is used is avoided.

The using method of the invention is as follows: installing tension adjusting equipment at a proper position of automatic conveying equipment, winding a material to be conveyed on a roller shaft 1 in a proper mode, starting the automatic conveying equipment to normally convey the material, enabling a magnetic powder brake 3 to normally work, and performing self-adaptive adjustment on the tension of the material during processing such as winding and the like;

auxiliary cooling: when materials are normally conveyed, the roller shaft 1 synchronously rotates along with the materials, under the action of a circular inclined lug on the outer surface of the left end of the central shaft 4, the movable block 7 in the contact direction with the materials moves leftwards during rotation, so that gas is sucked in the working cavity 5 through the gas suction groove 8, and when the movable block 7 rotates to the position opposite to the contact direction of the materials, the movable block 7 moves rightwards under the action of the lug, so that the gas in the working cavity 5 is discharged outwards through the gas blowing hole 6, and the magnetic powder brake 3 is cooled under the action of air cooling;

negative pressure adsorption: when materials are normally conveyed, under the action of the auxiliary cooling mechanism, the movable block 7 on the side contacting with the materials moves leftwards, negative pressure is formed in the working cavity 5, so that the working cavity 5 can only suck air through the air suction groove 8 and the communicating hole 9 under the action of one-way conduction of the air blowing hole 6, and the materials and the roller shaft 1 are adsorbed together under the action of negative pressure suction under the action of contact of an outer side hole and the materials, so that the friction force between the materials and the roller shaft 1 is enhanced;

deviation adjustment: when waiting to carry the material and taking place the off tracking, negative pressure adsorption mechanism makes adsorption mechanism unable normal work under the inside inspiratory effect of one side opening, and can carry out inspiratory effect only on one side down, make gaseous circulation in to the groove 8 of breathing in through the opening, carry out the negative pressure to working chamber 5 and fill, and under the effect of ball 12, make the negative pressure groove 11 that can normally breathe in one side closed, and the opposite side is inhaled under the effect of negative pressure suction, make bellows 13 slowly compress, and then make roller 1 drive one side removal of axis 4 to the material skew, thereby under negative pressure suction and frictional force and spring 14 automatic re-setting's effect, slowly adjust the material back to normal position.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.