A vertical preformer for annular products

Abstract

The present invention discloses a vertical preforming machine for annular products, belonging to the technical field of composite material preforming equipment. A vertical preforming machine for annular products includes a base, a driving system, a ring positioning system, a yarn feeding system, and a yarn fixing group. A placement area for placing a preforming ring is formed between the ring positioning system and the driving system. When the preforming ring is placed in the placement area, the driving end of the driving system contacts the outer ring of the preforming ring to drive the preforming ring to rotate uniformly. The ring positioning system contacts the outer ring and the side wall of the preforming ring respectively to position the preforming ring. The yarn feeding system is installed outside the placement area. When feeding yarn, a part of the yarn feeding system extends into the placement area and is located inside the inner ring of the preforming ring. At least one yarn fixing group is provided on both opposite sides of the placement area. After the preforming ring is placed in the placement area, the yarn fixing end of the yarn fixing group extends towards the side wall of the preforming ring. The vertical preforming machine for annular products of the present invention has high preforming efficiency and high quality of preformed products.

Description

Technical Field

[0001] The present invention belongs to the technical field of composite material preforming equipment, and particularly relates to a vertical preformer for annular products. Background Art

[0002] In modern industry, there are not many composite material preforming equipment. In production, manual yarn pasting preforming is mainly adopted. For the preforming of annular products such as bicycle wheels and motorcycle wheels, the preforming workers need to rotate and turn over the heavy preforming ring, resulting in high labor intensity. During the process of manually rotating and turning over the preforming ring, the yarn pasting is interrupted, and the preforming efficiency is relatively low; the discontinuous yarn pasting affects the quality of the preformed product. Summary of the Invention

[0003] The purpose of the present invention is to provide a vertical preformer for annular products, which stands up the heavy preforming ring and makes the preforming ring rotate at a constant speed through a drive system, combines with a yarn feeding system for continuous yarn pasting to improve the preforming efficiency, and improves the quality of the preformed product through the setting of a ring positioning system and a yarn fixing group.

[0004] To achieve this purpose, the present invention adopts the following technical solutions:

[0005] A vertical preformer for annular products provided by the present invention includes a base, a drive system, a ring positioning system, a yarn feeding system, and a yarn fixing group. The drive system, the ring positioning system, and the yarn feeding system are all arranged on the base. A placement area for placing the preforming ring is formed between the ring positioning system and the drive system. When the preforming ring is placed in the placement area, the driving end of the drive system contacts the outer ring of the preforming ring to drive the preforming ring to rotate at a constant speed. The ring positioning system contacts the outer ring and the side wall of the preforming ring respectively to position the preforming ring. The yarn feeding system is installed outside the placement area. When feeding yarn, a part of the yarn feeding system extends into the placement area and is located inside the inner ring of the preforming ring. At least one yarn fixing group is provided on both opposite sides of the placement area. After the preforming ring is placed in the placement area, the yarn fixing end of the yarn fixing group extends towards the side wall of the preforming ring.

[0006] Preferably, the yarn feeding system includes a vertical rod, a swing arm joint, a cross bar, a swivel joint, and a yarn tape reel. The vertical rod is fixed on the base on at least one side of the placement area. At least one swing arm joint is sleeved on the vertical rod. The swing arm joint can swing around the center of the vertical rod. One end of the cross bar is inserted into the interface on the side of the swing arm joint. The other end of the cross bar is hinged with the swivel joint. The cross bar can rotate around its own axis. The yarn tape reel is sleeved on the swivel joint. The yarn tape reel can rotate around the center of the swivel joint.

[0007] Preferably, the adapter includes an articulated seat, a pin, a nut, a first fixed shaft, a first bearing, and a mounting block. The end of the cross bar extends into the articulated seat and is hinged by the pin. A nut is threadedly connected to the pin for locking and fixing the pin. The first fixed shaft is fixed to one side of the articulated seat. The first bearing is fixedly sleeved on the first fixed shaft. The mounting block is fixedly sleeved on the outer ring of the first bearing, and the mounting block can rotate around the axis of the first fixed shaft.

[0008] Preferably, the ring positioning system includes multiple radial positioning groups and multiple axial positioning groups. The multiple radial positioning groups are distributed circumferentially around the center line of the placement area and are all in contact with the outer ring of the preformed ring placed in the placement area. The radial positioning groups rotate as the preformed ring rotates. The multiple axial positioning groups are symmetrically arranged on two opposite sides of the placement area. During positioning, the positioning ends of the multiple axial positioning groups are all extended to contact the side wall of the preformed ring.

[0009] Preferably, the radial positioning group includes a second fixed shaft, a second bearing, and a guide wheel. The second fixed shaft is fixed to the base, the second bearing is fixedly sleeved on the second fixed shaft, the guide wheel is fixedly sleeved on the outer ring of the second bearing, and the guide wheel can rotate around the axis of the second fixed shaft.

[0010] Preferably, the axial positioning group includes a first mounting plate, a cylinder, and a universal ball. The first mounting plate is fixed to the base, the cylinder is fixed to one side of the first mounting plate, and the telescopic end of the cylinder extends through the first mounting plate to the other side of the first mounting plate and toward the placement area.

[0011] Preferably, the drive system includes a reduction motor, a second mounting plate, a driving synchronous wheel, a synchronous pulley, a synchronous belt, a transmission shaft, and a driving wheel. The reduction motor is fixed to the base through the second mounting plate, and the driving wheel is fixedly sleeved on the transmission shaft. One end of the transmission shaft passes through the second mounting plate, and the fixed sleeve is provided with a synchronous pulley. One end of the output shaft of the reduction motor passes through the second mounting plate, and the fixed sleeve is provided with a driving synchronous wheel. The driving synchronous wheel and the synchronous pulley are connected by a synchronous belt transmission.

[0012] Preferably, the speed of the reduction motor is adjustable.

[0013] Preferably, the yarn fixing group comprises a slide and a chuck, the slide is fixed to the base, and the chuck is fixed to the slide.

[0014] Preferably, the clamp has a stop extending toward the center of the placement area.

[0015] The beneficial effects of the present invention are:

[0016] 1. The preform ring is placed upright in the placement area, and workers do not need to rotate or flip it, which greatly reduces the labor intensity of preform workers, and continuous yarn pasting improves preform efficiency.

[0017] 2. Drive the preform ring to rotate at a constant speed through the drive system, and improve the quality of the preformed product by combining the settings of the ring positioning system and the yarn fixing group.

[0018] 3. Through the pressing of the universal ball in cooperation with the uniform rotation of the preform ring, the pressing of the round bar yarn tape is made more compact and uniform, so that the quality of the preformed product is better.

[0019] 4. The yarn feeding system can place multiple yarn tapes at the same time. When the product requires different yarn types to be pasted on each layer, only the corresponding yarn type pre-installed on the yarn feeding system needs to be screwed in, without temporarily replacing the yarn tape. The operation is simple and easy, improving the yarn pasting efficiency, adapting to the yarn type configurations of various products, and meeting the growing market demand.

[0020] 5. Through the positioning function of the yarn fixing group, the yarn tape is preformed symmetrically and exactly in the middle, improving the quality of the preformed product.

[0021] 6. Through the settings of the radial positioning group and the axial positioning group, the circumferential direction and the lateral direction of the preform ring are positioned respectively, and the effective rotation of the preform ring can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0023] Figure 2 is a three-dimensional structural schematic diagram of the swing arm joint, cross bar, and adapter of the present invention.

[0024] Figure 3 is a three-dimensional structural schematic diagram of the radial positioning group of the present invention.

[0025] Figure 4 is a three-dimensional structural schematic diagram of the axial positioning group of the present invention.

[0026] Figure 5 is a three-dimensional structural schematic diagram of the drive system of the present invention.

[0027] Figure 6 is a three-dimensional structural schematic diagram of the yarn fixing group of the present invention.

[0028] The reference signs in the drawings are: 1 - base, 2 - drive system, 21 - reduction motor, 22 - second mounting plate, 23 - drive synchronous pulley, 24 - synchronous belt pulley, 25 - synchronous belt, 26 - transmission shaft, 27 - driving pulley, 3 - loop positioning system, 31 - radial positioning group, 311 - second fixed shaft, 312 - second bearing, 313 - guide pulley, 32 - axial positioning group, 321 - first mounting plate, 322 - cylinder, 323 - universal ball, 4 - yarn unwinding system, 41 - vertical rod, 42 - swing arm joint, 43 - cross bar, 44 - swivel joint, 441 - hinge seat, 442 - pin shaft, 443 - nut, 444 - first fixed shaft, 445 - first bearing, 446 - mounting block, 45 - yarn tape roll, 5 - yarn fixing group, 51 - slide table, 52 - chuck, 53 - stop portion, 6 - placement area, 100 - preformed ring. Detailed implementation manners

[0029] The present invention will be further described below in conjunction with the drawings and the detailed implementation manners.

[0030] Contents not described in detail in this specification belong to the prior art well-known to those skilled in the art. In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for differential description and should not be construed as indicating or implying relative importance.

[0031] As Figures 1 to 6As shown in the figure, a vertical preformer for annular products provided in this embodiment includes a base 1, a drive system 2, a ring positioning system 3, and a yarn feeding system 4. The drive system 2, the ring positioning system 3, and the yarn feeding system 4 are all arranged on the base 1. A placement area 6 for placing a preformed ring 100 is formed between the ring positioning system 3 and the drive system 2. When the preformed ring 100 is placed in the placement area 6, the drive end of the drive system 2 contacts the outer ring of the preformed ring 100 to drive the preformed ring 100 to rotate at a constant speed. The ring positioning system 3 contacts the outer ring and the side wall of the preformed ring 100 respectively to position the preformed ring 100. The yarn feeding system 4 is installed outside the placement area 6. When feeding yarn, a part of the yarn feeding system 4 extends into the placement area 6 and is located inside the inner ring of the preformed ring 100. The setting of the yarn feeding system 4 enables the yarn tape to rotate and flip flexibly, so as to facilitate the screwing in, screwing out, and replacement of the yarn tape, and improve the efficiency of yarn pasting. By positioning the preformed ring 100 in the circumferential direction and the lateral direction along the preformed ring 100 through the ring positioning system 3, and ensuring that the preformed ring 100 can rotate at a constant speed under the drive of the drive system 2, combined with the yarn feeding system 4, continuous yarn pasting operation is realized during the process of the preformed ring 100 rotating at a constant speed. The labor intensity of the preforming workers is reduced, and the preforming efficiency and the quality of the preformed products are improved. Specifically, the preformed ring 100 is placed upright in the placement area 6, the drive system 2 drives the preformed ring 100 to rotate at a constant speed, and the rotation speed is adjustable. The yarn of the yarn feeding system 4 is pulled out and pasted at the inner ring of the preformed ring 100. As the preformed ring 100 rotates at a constant speed, the yarn pasting is carried out at a constant speed, and the yarn feeding system 4 feeds yarn according to the speed of yarn pasting. A yarn fixing group 5 is provided on each of the left and right sides of the placement area 6, and the two yarn fixing groups 5 are symmetrically arranged. The preformed ring 100 is placed in the placement area 6, and then the yarn fixing end of the yarn fixing group 5 extends towards the side wall of the preformed ring 100, and the yarn tape released by the yarn feeding system 4 is positioned and preformed through the yarn fixing group 5.

[0032] Furthermore, the yarn release system 4 includes a vertical pole 41, a swing arm joint 42, a cross bar 43, an adapter 44, and a yarn tape roll 45. The vertical poles 41 are fixed on the base 1 on the left and right sides of the placement area 6. Two swing arm joints 42 are sleeved on each vertical pole 41. The swing arm joint 42 can swing around the center of the vertical pole 41, so that the corresponding yarn tape roll 45 can be swung to the inner circle of the preform ring 100 when the yarn is attached. The inner end of the cross bar 43 is inserted into the interface on the side of the swing arm joint 42, and the outer end of the cross bar 43 is hinged with an adapter 44. The cross bar 43 can rotate around its own axis. Specifically, a threaded hole is provided on the interface on the side of the swing arm joint 42, and the cross bar 43 is tightened by inserting a glass bead screw, wherein a slot is provided on the cross bar. When the yarn tape roll 45 needs to be flipped to the yarn release state, the cross bar 43 is rotated. When the slot on the cross bar is turned to the glass bead of the glass bead screw, the glass bead pops out and blocks the cross bar so that the cross bar cannot rotate. The yarn tape roll 45 is rolled and sleeved on the adapter 44. The yarn tape roll 45 can rotate around the center of the adapter 44, so that when the yarn tape is attached to the inner circle of the preform ring 100, it can follow the uniform rotation of the preform ring 100 and release the yarn tape at a uniform speed for yarn preforming. Through the arrangement of multiple adapters 44, yarn tape rolls 45 of different specifications can be placed. When the product requires different yarn types to be attached to each layer, the corresponding yarn type can be flexibly screwed into the inner circle of the preform ring 100 to improve the yarn attachment efficiency. In this embodiment, four yarn tape rolls 45 can be placed at the same time.

[0033] Furthermore, the adapter 44 includes an articulated seat 441, a pin 442, a nut 443, a first fixed shaft 444, a first bearing 445, and a mounting block 446. The outer end of the crossbar 43 extends into the articulated seat 441 and is hinged by the pin 442. The pin 442 is threadedly connected with a nut 443 for locking and fixing the pin 442. The angle of the ribbon roll 45 can be adjusted according to demand. Specifically, when the angle of the ribbon roll 45 needs to be adjusted, the nut 443 can be loosened, and the nut 443 can be tightened after the adjustment. A first fixed shaft 444 is fixed on one side of the articulated seat 441, and a first bearing 445 is fixedly sleeved on the first fixed shaft 444. The mounting block 446 is fixedly sleeved on the outer ring of the first bearing 445, and the mounting block 446 can rotate around the axis of the first fixed shaft 444. The tape roll 45 is sleeved on the mounting block 446 , and the arrangement of the first bearing 445 and the first fixed shaft 444 enables the tape roll 45 to rotate with the preform ring 100 to release the yarn.

[0034] Further, the loop positioning system 3 includes four radial positioning groups 31 and three axial positioning groups 32. Each axial positioning group 32 includes two axial positioning groups 32. The four radial positioning groups 31 are circumferentially distributed around the center line of the placement area 6. Two of them are distributed above the placement area 6, and the other two are distributed below the placement area 6. They are all in contact with the outer ring of the preform ring 100 placed in the placement area 6. The radial positioning groups 31 rotate with the rotation of the preform ring 100. The three axial positioning groups 32 are symmetrically arranged on the left and right sides of the placement area 6 respectively. Two of them are located in the lower part of the placement area 6, and the other one is located in the upper part of the placement area 6. During positioning, the positioning ends of the three axial positioning groups 32 all extend to contact the side wall of the preform ring 100. Through the settings of the radial positioning groups 31 and the axial positioning groups 32, the circumferential direction and the lateral direction of the preform ring 100 are positioned respectively, and the effective rotation of the preform ring 100 can be ensured.

[0035] Among them, the radial positioning group 31 includes a second fixed shaft 311, a second bearing 312, and a guide wheel 313. The second fixed shaft 311 is fixed to the base 1. The second bearing 312 is fixedly sleeved on the second fixed shaft 311. The guide wheel 313 is fixedly sleeved on the outer ring of the second bearing 312. The guide wheel 313 can rotate around the axis of the second fixed shaft 311.

[0036] Among them, the axial positioning group 32 includes a first mounting plate 321, a cylinder 322, and a universal ball 323. The first mounting plate 321 is fixed to the base 1. The cylinder 322 is fixed on the outside of the first mounting plate 321. The telescopic end of the cylinder 322 passes through the first mounting plate 321 and extends to the inside of the first mounting plate 321 and faces the placement area 6. During axial positioning, the cylinder 322 drives the universal ball 323 to protrude and contact the side wall of the preform ring 100 for positioning it, so as to position the preform ring 100 laterally. And through the pressing of the universal ball 323, the uniform rotation of the preform ring 100 is matched, so that the pressing of the round yarn tape is tighter and more uniform, thereby making the quality of the preform product better.

[0037] Further, the driving system 2 includes a reduction motor 21, a second mounting plate 22, a driving synchronous wheel 23, a synchronous pulley 24, a synchronous belt 25, a transmission shaft 26, and a driving wheel 27. The reduction motor 21 is fixed to the base 1 through the second mounting plate 22. The driving wheel 27 is fixedly sleeved on the transmission shaft 26. The right end of the transmission shaft 26 passes through the second mounting plate 22, and the fixed sleeve is provided with a synchronous pulley 24. The right end of the output shaft of the reduction motor 21 passes through the second mounting plate 22, and the fixed sleeve is provided with a driving synchronous wheel 23. After the preform ring 100 is placed in the placement area 6, the synchronous wheel is tangent to the outer ring of the preform ring 100 and is located below the preform ring 100. The driving synchronous wheel 23 and the synchronous pulley 24 are connected by a synchronous belt 25. The reduction motor 21 rotates at a uniform speed, driving the driving synchronous wheel 23 to rotate at a uniform speed, and the synchronous belt 25 synchronously drives the synchronous pulley 24 to rotate at a uniform speed, thereby causing the driving wheel 27 to rotate at a uniform speed, so that the preform ring 100 rotates at a uniform speed.

[0038] Furthermore, the speed of the reduction motor 21 is adjustable, and the speed can be adjusted according to different working environments, so as to adjust the speed of the preform ring 100 and further adjust the yarn pasting speed.

[0039] Furthermore, the yarn fixing group 5 includes a slide 51 and a chuck 52. The slide 51 is fixed to the base 1 and is located at the lower part of the placement area 6. The chuck 52 is fixed on the slide 51. The chuck 52 has a stopper 53 extending upward. When sticking the yarn, the slide 51 drives the chuck 52 close to the side wall of the pre-forming ring 100, and the yarn tape is stuck in the range enclosed by the chuck 52 and the inner circle of the pre-forming ring 100, so that the yarn tape is pre-formed symmetrically and centrally, thereby improving the quality of the pre-formed product. In addition, the stopper 53 can limit the yarn tape to avoid yarn tape deviation, further improving the positioning and pre-forming effects, and further improving the quality of the pre-formed product.

[0040] The annular product vertical preforming machine of the present invention can be adapted to preforming annular products of various composite materials. The preforming ring 100 is driven to rotate at a constant speed by the driving system 2. The operation is simple and convenient, the preforming efficiency is high, and the product forming quality is good.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vertical preforming machine for annular products, characterized in that: It includes a base, a drive system, a loop positioning system, a yarn feeding system, and a yarn fixing group; The drive system, the loop positioning system, and the yarn feeding system are all arranged on the base; A placement area for placing a preformed loop is formed between the loop positioning system and the drive system; When the preformed loop is placed in the placement area, the drive end of the drive system contacts the outer ring of the preformed loop to drive the preformed loop to rotate at a constant speed, and the loop positioning system contacts the outer ring and the side wall of the preformed loop respectively to position the preformed loop; The yarn feeding system is installed outside the placement area. When feeding yarn, a part of the yarn feeding system extends into the placement area and is located inside the inner ring of the preformed loop; At least one yarn fixing group is provided on both opposite sides of the placement area; After the preformed loop is placed in the placement area, the yarn fixing end of the yarn fixing group extends towards the side wall of the preformed loop to position and preform the yarn tape released by the yarn feeding system; The yarn feeding system includes a vertical rod, a swing arm joint, a cross bar, a swivel joint, and a yarn tape roll; The vertical rod is fixed on the base on at least one side of the placement area; At least one swing arm joint is sleeved on the vertical rod, and the swing arm joint can swing around the center of the vertical rod; One end of the cross bar is inserted into the interface on the side of the swing arm joint, and the other end of the cross bar is hinged with a swivel joint. The cross bar can rotate around its own axis; The yarn tape roll is sleeved on the swivel joint, and the yarn tape roll can rotate around the center of the swivel joint; The loop positioning system includes a plurality of radial positioning groups and a plurality of axial positioning groups; The plurality of radial positioning groups are circumferentially distributed around the center line of the placement area and all contact the outer ring of the preformed loop placed in the placement area. The radial positioning groups rotate automatically as the preformed loop rotates; The plurality of axial positioning groups are symmetrically arranged on both opposite sides of the placement area respectively. During positioning, the positioning ends of the plurality of axial positioning groups all extend to contact the side wall of the preformed loop.

2. The vertical preforming machine for annular products according to claim 1, characterized in that: The swivel joint includes a hinge seat, a pin shaft, a nut, a first fixed shaft, a first bearing, and a mounting block; The end of the cross bar extends into the hinge seat and is hinged through the pin shaft. The pin shaft is threadedly connected with a nut for locking and fixing the pin shaft; A first fixed shaft is fixed on one side of the hinge seat. The first bearing is fixedly sleeved on the first fixed shaft. The mounting block is fixedly sleeved on the outer ring of the first bearing, and the mounting block can rotate around the axis of the first fixed shaft.

3. The vertical preforming machine for annular products according to claim 1, characterized in that: The radial positioning group includes a second fixed shaft, a second bearing, and a guide wheel; The second fixed shaft is fixed to the base; The second bearing is fixedly sleeved on the second fixed shaft; The guide wheel is fixedly sleeved on the outer ring of the second bearing, and the guide wheel can rotate around the axis of the second fixed shaft.

4. The vertical preforming machine for annular products according to claim 1, characterized in that: The axial positioning group includes a first mounting plate, a cylinder, and a universal ball; The first mounting plate is fixed to the base; The cylinder is fixed on one side of the first mounting plate; The telescopic end of the cylinder passes through the first mounting plate and extends to the other side of the first mounting plate, and faces the placement area.

5. The vertical preforming machine for annular products according to claim 1, wherein: The drive system includes a reduction motor, a second mounting plate, a drive synchronous pulley, a synchronous belt pulley, a synchronous belt, a transmission shaft, and a driving pulley; The reduction motor is fixed to the base through the second mounting plate; The driving pulley is fixedly sleeved on the transmission shaft, and one end of the transmission shaft passes through the second mounting plate and is fixedly sleeved with a synchronous belt pulley; One end of the output shaft of the reduction motor passes through the second mounting plate and is fixedly sleeved with a drive synchronous pulley; The drive synchronous pulley and the synchronous belt pulley are connected by a synchronous belt for transmission.

6. The vertical preforming machine for annular products according to claim 5, wherein: The rotation speed of the reduction motor is adjustable.

7. The vertical preforming machine for annular products according to claim 1, wherein: The yarn fixing group includes a slide table and a chuck; The slide table is fixed to the base; The chuck is fixed on the slide table.

8. The vertical preforming machine for annular products according to claim 7, wherein: The chuck has a blocking portion extending towards the center of the placement area.

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