CN220594125U

CN220594125U - Production equipment for poly V-belt

Info

Publication number: CN220594125U
Application number: CN202322176710.7U
Authority: CN
Inventors: 郝敬锋
Original assignee: Gates Unitta Power Transmission (suzhou) Ltd
Current assignee: Gates Unitta Power Transmission (suzhou) Ltd
Priority date: 2023-08-14
Filing date: 2023-08-14
Publication date: 2024-03-15
Anticipated expiration: 2033-08-14

Abstract

The utility model provides a multi-wedge belt production device which comprises a supporting backboard, a heating assembly, a heating driving assembly, a guiding assembly, a fixing frame and a heating substrate, wherein the fixing frame and the supporting backboard are arranged in parallel and are arranged on the heating substrate, the heating assembly is positioned between the supporting backboard and the fixing frame, the guiding assembly and the heating driving assembly are arranged on the fixing frame, one ends of the guiding assembly and the heating driving assembly are connected to one side of the heating assembly, which is far away from the supporting backboard, of the heating assembly, the guiding assembly comprises a linear bearing arranged on the fixing frame and a guiding optical axis which is connected to the linear bearing in a sliding manner, the heating driving assembly is an air cylinder, the end part of the air cylinder is connected with the heating assembly, and the multi-wedge belt fabric is welded to rubber of a compression layer before being put into a vulcanization mold, so that the vulcanized wedge fabric is flatly attached to the wedge surface of the multi-wedge belt, and the friction coefficient of the multi-wedge belt wedge surface is ensured.

Description

Production equipment for poly V-belt

Technical Field

The utility model relates to a V-ribbed belt production device.

Background

The method for producing the multi-wedge belt gradually becomes a hot spot for research and production in recent years because of material and time saving of mould pressing, namely, the wound tubular belt body is put into a mould, grooves for forming the multi-wedge belt wedges are formed in the mould, a vulcanized rubber cylinder with wedges on the surface is directly formed in an extrusion mode during vulcanization, and then the vulcanized rubber cylinder is cut according to the number of required wedges to form the multi-wedge belt. To improve the belt characteristics in the molding process, a fabric is provided on the surface of the wedge of the v-ribbed belt, such as the one disclosed in chinese application by the company gaits: CN103161879a and CN101558251a to improve the sliding noise or dynamic performance of a v-ribbed belt, etc., are mainly determined by the characteristics of the fabric of the ribbed surface. However, in the process of manufacturing the V-ribbed belt, it is found that the fabrics arranged on the surfaces of the wedges are partially overlapped, so that the fabrics and the rubber are separated when the V-ribbed belt is used, the performance of the V-ribbed belt is affected, and meanwhile, the friction coefficient of the obtained V-ribbed belt is unstable.

There is an urgent need to provide a v-ribbed belt production apparatus that can solve the problem of unstable friction coefficient of fabrics on the ribbed surface.

Disclosure of Invention

The utility model provides a multi-wedge belt production device for solving the technical problems

The utility model provides a V-ribbed belt production facility for the welding of fabric tube-shape area body in the V-ribbed belt production process, V-ribbed belt production facility includes the welding portion, the welding portion is including supporting backplate, heating element, heating drive assembly, direction subassembly, mount and heating base plate, the mount with support backplate parallel arrangement, all install on heating base plate, heating element is located between support backplate and the mount, direction subassembly and heating drive assembly install on the mount, direction subassembly with heating drive assembly's one end is connected in one side that heating element deviates from support backplate, direction subassembly is including installing linear bearing and the guiding optical axis of sliding connection on linear bearing on the mount, heating drive assembly is the cylinder, the cylinder tip is connected with heating element.

The heating assembly comprises a pressing plate, a heating plate and a heating connecting plate, wherein the heating plate is positioned between the pressing plate and the heating connecting plate and is connected with the pressing plate and the heating connecting plate mutually, the pressing plate is positioned on one side close to the support back plate, one side of the heating connecting plate is connected with the heating plate, and the other side of the heating connecting plate is connected with the guiding optical axis and the end part of the cylinder rod of the cylinder.

The heating assembly comprises a heat insulation plate, wherein the heat insulation plate is positioned between the heating plate and the heating connection plate and is arranged on the heating connection plate. Preventing heat on the heating plate from being transferred to the heating drive assembly, and causing deformation or failure of the heating drive assembly.

The end part of the cylinder rod is connected with the heating connecting plate through a floating joint. Preventing the damage to the cylinder due to the linear motion.

The V-ribbed belt production equipment further comprises a fixed beam and a moving assembly, wherein the moving assembly is arranged on the fixed beam, and the welding part is connected to the moving assembly through a heating substrate.

The movable assembly comprises a screw rod assembly and a screw rod driving assembly, wherein the screw rod assembly and the screw rod driving assembly are fixed on a fixed beam, the screw rod assembly comprises a screw rod, guide rails, screws, screw nut connecting blocks, sliding blocks, guide rails and bearing seats, the two ends of the screw rod are fixed on the fixed beam through screw rod bearing seats, the screw nut connecting blocks are connected with the screws on the screw rod, a pair of guide rails are parallel to the screw rod and are arranged on the fixed beam, each guide rail is provided with two sliding blocks, four sliding blocks and the screw nut connecting blocks are fixedly connected on a heating substrate, and one end of the screw rod is connected with the screw rod driving assembly.

The screw rod driving assembly comprises a servo motor, a gear reducer, a belt wheel and a coupler, wherein the servo motor is fixed on a fixed beam, the output end of the servo motor is connected with the gear reducer, the output end of the gear reducer is provided with a first belt wheel, one end of the screw rod is connected with a second belt wheel through the coupler, and the first belt wheel is connected with the second belt wheel through the belt.

The V-ribbed belt production apparatus further includes a storage plate movable in a direction perpendicular to the heating substrate. For realizing automation of production.

The V-ribbed belt produced by the V-ribbed belt production equipment disclosed by the utility model has the advantages that the fabrics at the wedge parts are flatly attached to the surfaces of the wedges, so that the friction coefficient of the wedge surfaces of the V-ribbed belt is ensured.

Drawings

FIG. 1 is a cross-sectional view of a V-ribbed belt;

FIG. 2 is a schematic diagram of a cloth sleeving auxiliary tool;

FIG. 3 is a schematic partial perspective view of a V-ribbed belt production apparatus;

FIG. 4 is a graph of the friction coefficient of a V-ribbed belt produced from a welded fabric tubular belt body;

FIG. 5 is a graph of the friction coefficient of V-ribbed belts produced from unwelded fabric tubular belts.

In the figure:

1. a fixed beam; 2. a nut connecting block; 3. a fixing frame; 4. guiding an optical axis; 5. heating the connecting plate; 6. a heat insulating plate; 7. a heating plate; 8. pressing the plate; 9. a support back plate; 11. heating the substrate; 15. a motor fixing frame; 16. a first pulley; 17. a second pulley; 31. a screw rod; 34. an end baffle; 38. a bearing seat; 40. a guide rail; 41. a slide block; 42. a cylinder; 43. a floating joint; 44. a servo motor; 50. a belt; 52. a linear bearing; 100. a V-ribbed belt; 110. a rubber tubular belt body; 111. a compression layer; 112. a string; 113. stretching the layer; 114. a top layer cloth; 115. wedge fabric; 116. v-shaped wedge; 120. a fabric tubular belt body; 200. an auxiliary tool; 400. and a storage plate.

Detailed Description

The following detailed description of the embodiments of the present utility model is given with reference to fig. 1 to 3, and the description of the positions herein such as inner, outer, upper or lower are merely descriptions based on the positions shown in the drawings, and are not limiting of the present utility model, but may be changed from inner to outer in other drawings.

As shown in fig. 1, the V-ribbed belt 100 includes a compression layer 111, a tension layer 113, and a tensile cord 112 between the tension layer 113 and the compression layer 111, wherein a plurality of V-shaped wedges 116 extending in the longitudinal direction of the belt are provided on the inner side of the compression layer 111, the number of the wedges is determined according to the requirement, and as shown in fig. 1, 6 wedges are provided, friction surfaces of the V-shaped wedges 116 are engaged with a grooved pulley to perform friction transmission, and friction surfaces of the V-shaped wedges 116 are completely covered by a wedge fabric 115. The v-ribbed belt may also be provided with a top layer cloth 114, the top layer cloth 114 covering the outside of the stretch layer 113. The material and the forming manner of the top layer cloth 114 are not limited, and the top layer cloth 114 may be formed in any manner disclosed in the prior art, such as a knitted cloth, a woven cloth, etc. formed by the RFL liquid dipping treatment. The wedge fabric 115 employs a fabric capable of extending in two predetermined directions, and the elongation is determined according to the elongation of the mold expansion. Since the wedge fabric 115 is friction-driven, it is preferable that the wedge fabric 115 adopts a seamless structure such as a tubular seamless knitted fabric. Due to the good bi-stretchability of weft knitted fabrics, unevenness caused by overlapping of seams or fabric pieces can be avoided at the wedge surface by using seamless knitted fabrics. The weft knit may include an elastic yarn and at least one inelastic yarn to meet stretch requirements in all directions. The elastic yarns comprise polyurethane and the inelastic yarns comprise non-cellulosic fibers or yarns and the inelastic yarns comprise cellulosic fibers or yarns. So as to meet the requirements of tensile property and water absorption property. The fabric options of patent applications CN103161879a and CN101558251a may be fully incorporated into this patent application.

The tensile layer 113 and the compressive layer 111 are rubber layers, which may be non-pure rubber layers, such as rubber layers comprising other materials, such as fiber-containing rubber layers or fabric-containing interlayers, and the like.

The v-ribbed belt is produced by the following method, and the present utility model will not be described in detail since kneading, rolling, etc. are known in the art. Details are set forth in the molding process.

Firstly, winding a rubber sheet and a rope 112 on a forming die, firstly winding the rubber sheet forming a stretching layer 113, firstly placing a top cloth 114 on the forming die with the top cloth 114 on a poly V-shaped wedge, and then winding the rubber sheet forming the stretching layer 113, wherein the top cloth 114 is preferably a seamless butt-jointed cloth, so that overlapping of joints is prevented, and appearance and noise are prevented from being influenced; next, a tensile cord 112 is wound, and then a rubber sheet is wound to form a compressed layer 111. A rubber band is formed on the forming die, the tensile layer 113 is close to the outer circumferential surface of the forming die, and the compression layer 111 is located at the outermost side of the winding layer.

The rubber belt body formed as described above is separated from the forming die to form a rubber tubular belt body 110. The separation may be performed manually or by a machine.

A tubular rib fabric 115 is fitted over the outer peripheral surface of the rubber tubular belt body 110 to form a fabric tubular belt body 120, and the rib fabric 115 is flatly covered on the compression layer 111. The wedge fabric 115 may be manually sleeved. The auxiliary tool 200 placed by the cylindrical cloth sleeve is preferably adopted, so that the phenomena of bending operation and uneven distribution of the sleeve stress are avoided. The auxiliary tool 200 can be sleeved by adopting the tool disclosed in the application document with the publication number of CN115837767A, so that the tension non-uniformity caused by manual operation is reduced, and the rejection rate of the transmission belt is reduced.

The fabric cylindrical band 120 is put on a v-ribbed band production apparatus which clamps and heats the inner and outer sides of the fabric cylindrical band 120 locally, so that the local rib fabric 115 and the rubber of the compression layer 111 are welded together in the length direction of the cylindrical band. The wedge fabric 115 is prevented from moving relative to the rubber belt body during molding, and partial folding is caused by different movement amounts, and the other part is excessively stretched or is not stretched in place, so that the transmission performance of the transmission belt is influenced. Specifically, the welding points may be several welds extending in the axial direction of the fabric tubular band 120. The v-ribbed belt production apparatus may be first welded to the left and right sides of the cylinder, then rotated to weld the other parts, and the fabric and the rubber of the adjacent compressed layer 111 may be formed into several welded seams to locate the fabric preliminarily. The number of welds is adjusted according to the diameter of the fabric tubular band 120, such as 4-8 welds.

The partially welded fabric tubular tape 120 is placed in a vulcanization mold and vulcanized to form a vulcanized rubber cylinder. The vulcanizing mold is provided with an outer mold and an inner mold with a cavity therebetween for placing the vulcanized fabric tubular belt 120. The inner surface of the outer mold is provided with grooves extending in the circumferential direction for forming wedges of the V-ribbed belt. The outer circumference of the inner mold is provided with an expandable rubber air bag, two ends of the expandable rubber air bag are fixed on a mold core of the inner mold, and the inner mold and the rubber air bag are inflated firstly, so that the rubber air bag can expand radially, the diameter of the tubular extrusion fabric belt body 120 expands outwards, the tubular extrusion fabric belt body is pressed into the outer mold, and then vulcanization is carried out at high temperature and high pressure, so that a vulcanized rubber cylinder which is vulcanized integrally and has wedges on the outer surface is formed. When the fabric tubular belt 120 is placed, the wedge fabric 115 is adjacent to the outer mold side and the draw layer 113 is adjacent to the inner mold side.

The vulcanized rubber tube is demolded, and then cut to a desired width of the plurality of V-shaped wedges 116, thereby forming an endless V-ribbed belt having the plurality of V-shaped wedges 116 in the width direction. The number of V-shaped wedges 116 is 3-20 wedges, cut according to configuration and need.

The V-ribbed belt production equipment can be welded by adopting the V-ribbed belt production equipment shown in fig. 3, and the welding part is two symmetrical parts, including a support back plate 9, a heating assembly, a heating driving assembly, a guiding assembly, a fixing frame 3 and a heating substrate 11. Only one side will be described below. The fixing frame 3 and the supporting backboard 9 are arranged in parallel and are vertically arranged on the heating substrate 11; the heating component is positioned between the fixed frame 3 and the supporting backboard 9; the heating driving component and the guiding component are fixed on the fixing frame 3 perpendicular to the fixing frame 3. The heating driving component drives the heating component to move towards the supporting backboard 9, the fabric cylindrical belt body 120 arranged between the heating component and the supporting backboard 9 is clamped, and the guiding component is used for guiding the movement of the heating component.

Specifically, the heating assembly comprises a pressing plate 8, a heating plate 7, a heat insulation plate 6 and a heating connection plate 5. The pressing plate 8, the heating plate 7, the heat insulation plate 6 and the heating connection plate 5 are all arranged into cuboid, and are connected with each other in sequence and fixed on the heating connection plate 5 to form a heating assembly. The support back plate 9 is provided in an elongated shape, and the pressing plate 8 is parallel to the support back plate 9 on a side close to the support back plate 9. The heating plate 7 is mounted against the other side of the press plate 8, and the heating plate 7 transmits heat and pressure to the fabric tubular belt 120 through the press plate 8. The heat shield 6 is installed at the other side of the heating plate 7 to prevent heat on the heating plate 7 from being transferred to the heating driving assembly, causing deformation or failure of the heating driving assembly. Resistance wires are arranged in the heating plate 7 and can be electrified and heated. The heat insulating board 6 can be made of asbestos tile material, and can be a multi-layer board or a plurality of boards for effectively insulating heat. One side of the heating connecting plate 5, which is close to the fixing frame 3, is connected with a heating driving component and a guiding component, the guiding component guides the heating driving component, and the heating driving component drives the heating component to move away from the supporting backboard 9 after approaching. Specifically, the fixing frame 3 is parallel to the heating assembly, the guiding assembly and the heating driving assembly are both arranged on the fixing frame 3, and the guiding assembly is two and is arranged on two sides of the heating driving assembly in parallel. The guiding assembly comprises a linear bearing 52 and a guiding optical axis 4. The linear bearing 52 may be a flanged bearing mounted on the mount 3 by a flange, the guiding optical axis 4 being mounted in the linear bearing 52, the guiding optical axis 4 moving along the linear bearing 52. To prevent the guide optical axis 4 from falling off when it moves, the end of the guide optical axis 4 is further provided with an end stopper 34. The other end of the guiding optical axis 4 is fixedly connected to a heating connection plate 5. The heating driving component is an air cylinder 42, and is connected with the heating connecting plate 5 of the heating component through an air cylinder rod to drive the heating component to move. In order to prevent the air cylinder 42 from being damaged by the movement of the guide optical axis 4, a floating joint 43 is installed at the end of the cylinder rod, and is connected to the heating connection plate 5 through the floating joint 43.

In order to adapt to the fabric tubular belt body 120 with different circumferences and the condition that the fabric tubular belt body 120 does not interfere with the supporting backboard 9 and the welding assembly during rotation, the V-ribbed belt production equipment comprises a fixed beam 1 and two moving assemblies, wherein the moving assemblies are symmetrically arranged on the same side of the fixed beam 1. The fixed beam 1 is mounted on a column (not shown). The moving assembly is arranged on the fixed beam 1, the welding part is connected with the moving assembly through the heating substrate 11, and the moving assembly drives the welding part to move to two sides along the fixed beam 1. The moving assembly is described in detail for one side only, and corresponding parts are given the same part names and numbers.

Specifically, the moving assembly comprises a screw rod assembly and a screw rod driving assembly. The moving assembly and the screw rod driving assembly are both arranged on the fixed beam 1. The screw assembly comprises a screw 31, a bearing seat 38, a guide rail 40, a sliding block 41, a screw and a screw connecting block 2. Two ends of the screw rod 31 are fixed on the fixed beam 1 through bearing blocks 38, two guide rails 40 are also arranged on the fixed beam 1, and the two guide rails 40 are positioned on two sides of the screw rod 31; the screw rod 31 is matched with a screw, a screw connecting block 2 is arranged on the screw, and the screw connecting block 2 is connected with the heating substrate 11; four sliders 41 are respectively mounted on the guide rail 40 and are movable back and forth along the guide rail 40. The other surfaces of the four sliders are connected to the heating substrate 11, and are distributed at four corners of the heating substrate 11 as much as possible. The screw rod driving assembly is used for driving the screw rod 31 to rotate, and further drives the screw nut connecting block 2 to move back and forth along the screw rod 31. The screw rod driving assembly comprises a servo motor 44, a gear reducer, a belt 50, a belt wheel and a coupler, wherein the servo motor 44 is arranged on the fixed beam 1 through a motor fixing frame 15, the output end of the servo motor 44 is connected with the gear reducer, and the stepless regulation of the rotating speed according to the requirement is realized. The output end of the gear reducer is provided with a first belt pulley 16, one end of a screw rod 31 is connected with a second belt pulley 17 through a coupler, the first belt pulley 16 and the second belt pulley 17 are connected and driven through a belt 50, so that the power of a servo motor 44 is finally transmitted to the screw rod 31, and the screw rod 31 is driven to rotate. Because the slider 41 and the nut connecting block 2 are connected with the welding part through the heating substrate 11, the servo motor 44 drives and finally drives the nut connecting block 2 and the slider 41 to move back and forth along the guide rail 40, and further drives the welding part to move back and forth. Before welding, the moving part drives the welding part to move to a preset position, the fabric tubular belt body 120 is placed between the support back plate 9 and the pressing plate 8 and is not contacted with the support back plate 9, the screw rod 31 rotates to drive the whole welding part to move outwards, the support back plate 9 is enabled to move outwards to be closely attached to the inner surface of the fabric tubular belt body 120, meanwhile, the heating driving assembly drives the heating assembly to move inwards, the fabric tubular belt body 120 is enabled to be pressed on the support back plate 9, and heating welding is carried out. After the first welding is completed, the welding part is restored to a preset position, and the fabric tubular belt 120 is loosened; the fabric tubular band 120 is then rotated and then welded with other welds, in turn completing the welding of the desired weld. Because the welding parts are symmetrically arranged, the welding of two welding seams can be completed at one time.

In order to realize automation of the cooperation of the fabric tubular belt body 120 and the v-ribbed belt production device, the v-ribbed belt production device further comprises a storage plate 400, wherein the storage plate 400 can move along a direction perpendicular to the heating substrate 11, so that the fabric tubular belt body 120 is input between the heating assembly and the support back plate 9 for welding. The object placing plate 400 may also be connected with a rotating mechanism, so that the object placing plate 400 rotates around the center to drive the fabric tubular belt body 120 to rotate, and welding of a plurality of welding joints of the fabric tubular belt body 120 is realized. The welded fabric tubular belt 120 prevents the fabric from being inclined or moved in any direction due to the partial bonding with the rubber surface during vulcanization, and prevents the fabric from overlapping due to inconsistent elongation in all directions.

Fig. 4 and 5 are diagrams of friction coefficients obtained by taking two poly V-belts at the head, middle and tail and taking a plurality of points for testing by rotating a tester. Wherein the ordinate is the friction coefficient, the abscissa is the degree of a rotation of the poly-wedge tape from 0 DEG to 360 DEG, wherein COF represents the friction coefficient, COF1 and COF2 are the two poly-wedge tapes of the head, COF3 and COF4 are the two poly-wedge tapes of the middle, and COF5 and COF6 are the two poly-wedge tapes of the tail. As can be seen from the figure, the friction coefficient of the V-ribbed belt produced by welding the fabric is relatively stable from beginning to end, while the V-ribbed belt produced by the non-welding fabric belt drum in the prior art has larger fluctuation of the friction coefficient of the V-ribbed belt produced by the vulcanized cylindrical belt body, and influences the performance of the V-ribbed belt.

Claims

1. The utility model provides a V-ribbed belt production facility for the welding of fabric tube-shape area body among the V-ribbed belt production process, its characterized in that: the multi-wedge belt production equipment comprises a welding part, wherein the welding part comprises a support backboard, a heating assembly, a heating driving assembly, a guiding assembly, a fixing frame and a heating substrate, the fixing frame is arranged in parallel with the support backboard and is arranged on the heating substrate, the heating assembly is positioned between the support backboard and the fixing frame, the guiding assembly and the heating driving assembly are arranged on the fixing frame, one end of the guiding assembly is connected with one side, deviating from the support backboard, of the heating assembly, the guiding assembly comprises a linear bearing arranged on the fixing frame and a guiding optical axis which is connected onto the linear bearing in a sliding manner, the heating driving assembly is an air cylinder, and the end part of the air cylinder is connected with the heating assembly.

2. The v-ribbed belt production apparatus of claim 1, wherein: the heating assembly comprises a pressing plate, a heating plate and a heating connecting plate, wherein the heating plate is positioned between the pressing plate and the heating connecting plate and is connected with the pressing plate and the heating connecting plate mutually, the pressing plate is positioned on one side close to the support back plate, one side of the heating connecting plate is connected with the heating plate, and the other side of the heating connecting plate is connected with the guiding optical axis and the end part of the cylinder rod of the cylinder.

3. The v-ribbed belt production apparatus of claim 2, wherein: the heating assembly comprises a heat insulation plate, wherein the heat insulation plate is positioned between the heating plate and the heating connection plate and is arranged on the heating connection plate.

4. A v-ribbed belt production apparatus as claimed in claim 3, characterized in that: the air cylinder rod comprises a floating joint, and the end part of the air cylinder rod is connected with the heating connecting plate through the floating joint.

5. The v-ribbed belt production apparatus of claim 4, wherein: the V-ribbed belt production equipment further comprises a fixed beam and a moving assembly, wherein the moving assembly is arranged on the fixed beam, and the welding part is connected with the moving assembly through a heating substrate.

6. The v-ribbed belt production apparatus of claim 5, wherein: the movable assembly comprises a screw rod assembly and a screw rod driving assembly which are fixed on a fixed beam, the screw rod assembly comprises a screw rod, guide rails, screws, screw nut connecting blocks, sliding blocks, guide rails and bearing seats, two ends of the screw rod are fixed on the fixed beam through screw rod bearing seats, the screw nut connecting blocks are connected with the screws on the screw rod, a pair of guide rails are parallel to the screw rod and are arranged on the fixed beam, two sliding blocks are arranged on each guide rail, the four sliding blocks and the screw nut connecting blocks are fixedly connected on a heating substrate, and one end of the screw rod is connected with the screw rod driving assembly.

7. The v-ribbed belt production apparatus of claim 6, wherein: the screw rod driving assembly comprises a servo motor, a gear reducer, a belt wheel and a coupler, wherein the servo motor is fixed on a fixed beam, the output end of the servo motor is connected with the gear reducer, the output end of the gear reducer is provided with a first belt wheel, one end of the screw rod is connected with a second belt wheel through the coupler, and the first belt wheel is connected with the second belt wheel through the belt.

8. The v-ribbed belt production apparatus of claim 7, wherein: the V-ribbed belt production equipment further comprises a storage plate, wherein the storage plate can move along the direction perpendicular to the heating substrate.