A paper-based friction plate forming apparatus

Abstract

This invention relates to the field of friction sheet conveying and forming, and discloses a paper-based friction sheet forming equipment, including a machine tool, a turntable, and two patching mechanisms. Several fixtures are rotatably mounted on the turntable. The machine tool is equipped with a power module for driving the turntable and fixtures to rotate. The two patching mechanisms correspond to the two fixtures to form two patching stations. A housing corresponding to one of the fixtures is fixedly mounted on the machine tool, located between the two fixtures corresponding to the two patching stations. This invention, through the integrated layout of an eight-station turntable, integrates the entire process of feeding, gluing, patching, flipping, curing, and unloading. It can load eight workpieces at once, significantly improving processing efficiency. Double-sided patching processing is completed simultaneously within a single turntable, with seamless process connections, perfectly adapting to the needs of compact, efficient, and continuous mass production.

Description

Technical Field

[0001] This invention relates to the field of friction pad conveying and forming technology, and in particular to a paper-based friction pad forming device. Background Technology

[0002] The core function of the paper-based friction sheet patch forming machine is to automate the gluing, precise bonding, and pre-forming of the metal skeleton and the paper-based friction material. It is the core process equipment for wet paper-based friction sheet manufacturing. The feeding mechanism transports the positioned skeleton to the gluing station to complete the gluing, and then to the stamping station to complete the patch forming.

[0003] For example, Chinese Patent Publication No. CN120774164A discloses an automatic friction pad application device, including a clamping mechanism and a conveying mechanism. The workpiece is conveyed by the conveying mechanism and then placed on a temporary feeding mechanism. After entering the first application mechanism, a paper base is adhered to the upper surface of the workpiece. The workpiece is then moved to a flipping mechanism, which flips the workpiece and moves it to a second application mechanism. The second application mechanism adheres the paper base to the other surface of the workpiece. The applied workpiece is then moved to a pressing mechanism, which presses the paper base and the workpiece together. After pressing, the workpiece exits the pressing mechanism, completing the operation. The clamping mechanism clamps the workpiece located on the conveying mechanism and places it on the temporary feeding mechanism. The clamping and repositioning mechanism moves the workpiece sequentially to the next processing mechanism, thus completing the workpiece processing operation.

[0004] The application is based on a longitudinal linear arrangement of conveyor belts. The feeding mechanism, patching mechanism, and flipping mechanism, etc., all need to be arranged sequentially along the conveyor belt. This causes the flipping of the molded workpiece to be transferred back and forth between the conveyor belt and multiple mechanisms, which in turn requires repeated positioning and clamping of the molded workpiece. This seriously affects the overall efficiency of patch molding and cannot meet the needs of enterprises for large-scale continuous production.

[0005] Therefore, it is necessary to provide a paper-based friction sheet forming device to solve the above-mentioned technical problems. Summary of the Invention

[0006] The purpose of this invention is to provide a paper-based friction sheet forming device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a rotary multi-station paper-based friction sheet forming equipment is designed to simultaneously complete double-sided sheet bonding processing within a single rotary table, thereby ensuring overall processing efficiency.

[0008] Based on the above ideas, the present invention provides the following technical solution: a paper-based friction sheet forming device, comprising a machine tool, a turntable, and two patching mechanisms. Several fixtures are rotatably mounted on the turntable. The machine tool is equipped with a power module for driving the turntable and fixtures to rotate. The two patching mechanisms correspond to the two fixtures to form two patching stations. A housing corresponding to one of the fixtures is fixedly mounted on the machine tool. This fixture is located between the two fixtures corresponding to the two patching stations. A moving component corresponding to the position of the forming workpiece is disposed inside the housing. A control component for driving the moving component is also disposed inside the housing. The control component first drives the moving component horizontally towards the fixture and clamps the forming workpiece, then drives the moving component and the clamped forming workpiece to rise vertically. During the rise, the clamped forming workpiece can be rotated 180 degrees.

[0009] As a further embodiment of the present invention: the moving component includes a guide groove formed in the housing, a slider slidably installed in the guide groove, and a rack fixedly installed on the housing. The slider is driven by a control component and a short rod is rotatably mounted on its surface. A chuck corresponding to the forming workpiece is fixedly installed at the end of the short rod. A gear is rotatably mounted on the outer surface of the short rod through a one-way bearing. Two first springs for resetting are fixedly installed on the slider.

[0010] As a further aspect of the present invention: the guide groove is L-shaped and divided into a horizontal groove and a vertical groove, and the slider is T-shaped and located on the side of the horizontal groove away from the vertical groove.

[0011] As a further aspect of the present invention: the slider protrudes in the direction of the guide groove to form a crossbar, one of which is fixedly installed on the surface of the crossbar near the clamp, and the other is fixedly installed on the top of the crossbar.

[0012] As a further aspect of the present invention: the gear and rack are arranged in a staggered manner, and when the slider approaches the clamp horizontally, the gear and rack correspond vertically; when the gear contacts the rack, it can drive the short rod and the chuck to rotate 180 degrees.

[0013] As a further aspect of the present invention: the control component includes a cylinder fixedly mounted on a machine tool, the output shaft of the cylinder being fixedly mounted on a base plate, and a push block corresponding to the position of the slider being fixedly mounted on the surface of the base plate.

[0014] As a further embodiment of the present invention: the top of the push block is provided with an inclined surface and a flat surface, the flat surface being located below the inclined surface and the inclined surface corresponding to the slider.

[0015] As a further aspect of the present invention: the clamp is provided with a plurality of through holes along the vertical direction, the top of the base plate is provided with a lifting component corresponding to the vertical direction of the through holes, and a gap is provided between the push block and the slider along the vertical direction.

[0016] As a further aspect of the present invention: the lifting assembly includes a partition, a top rod corresponding to the position of the through hole is fixedly installed on the top of the partition, and a plurality of second springs are fixedly installed between the partition and the bottom plate.

[0017] As a further aspect of the present invention: a core column protrudes upward from the center of the clamp, and an annular groove is formed on the surface of the clamp and on the outside of the core column.

[0018] Compared with the prior art, the beneficial effects of the present invention are: through the cooperation between the turntable, fixture and power module, continuous mass production can be realized, greatly improving processing efficiency. Through the integrated layout of the eight-station turntable, the entire process of feeding, gluing, patching, flipping, curing and unloading is integrated. Eight workpieces can be loaded at one time, and double-sided patching processing can be completed simultaneously in a single turntable. The process is seamlessly connected, perfectly adapting to the needs of compact, efficient and continuous mass production.

[0019] By using the non-damaging flipping of the moving components, only the outer edge of the formed workpiece is clamped, without contact with the paper base and uncured adhesive layer throughout the process. This enables a fully automated and continuous action of "horizontal clamping - vertical lifting synchronous 180-degree flipping - vertical descent reset - horizontal release". There is no secondary rotation when the formed workpiece is lowered and reset, ensuring that it is accurately returned to the fixture after flipping, which is suitable for the production rhythm of intermittent continuous conveying of the turntable.

[0020] With its compact design of housing, moving components, and control components, it has no spatial interference with the rotation of the turntable and the clamping action of the fixture. It can be directly integrated into existing turntable production lines without significant modifications to the original equipment layout, resulting in stronger equipment compatibility. At the same time, there is no need to add an offline flipping process or independent flipping equipment. The workpiece can be flipped online within the turntable station, realizing continuous processing from single-sided to double-sided patching. This significantly shortens the production process, reduces equipment investment and production line footprint, and ensures the production efficiency of enterprises. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a perspective view of the overall structure of the present invention; Figure 2 This is a schematic diagram of the turntable and clamp structure of the present invention; Figure 3 This is a schematic diagram of the fixture, core post, and annular groove structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the housing of the present invention; Figure 5 This is a schematic diagram of the horizontal and vertical groove structures of the present invention; Figure 6 This is a schematic diagram of the inclined plane and planar structure of the present invention; Figure 7This is a schematic diagram of the base plate and lifting assembly structure of the present invention; Figure 8 This is a schematic diagram of the partition and top rod structure of the present invention; Figure 9 This is a schematic diagram of the chuck and clamping assembly structure of the present invention; Figure 10 This is a schematic diagram of the arc plate and abutment plate structure of the present invention.

[0022] In the diagram: 1. Machine tool; 2. Conveying unit; 3. Patch placement mechanism; 4. Housing; 5. Moving assembly; 6. Control assembly; 7. Lifting assembly; 8. Clamping assembly; 9. Formed workpiece; 201. Turntable; 202. Fixture; 203. First motor; 204. Second motor; 205. Belt drive; 206. Core column; 207. Annular groove; 208. Through hole; 401. Clearance groove; 501. Slider; 502. Chuck; 503. Guide groove; 504. Rack; 505, Short rod; 506, Gear; 507, Crossbar; 508, First spring; 509, Slot; 5031, Horizontal groove; 5032, Vertical groove; 601, Cylinder; 602, Base plate; 603, Push block; 604, Inclined surface; 605, Flat surface; 701, Partition plate; 702, Second spring; 703, Top rod; 801, Arc plate; 802, Round rod; 803, Support rod; 804, Abutment plate; 805, Third spring; 806, Slope. Detailed Implementation Example 1

[0023] Please see Figures 1 to 6 This invention provides a paper-based friction sheet forming device, mainly used to achieve rapid flipping of the formed workpiece 9 in the station arrangement formed by the turntable 201, thereby meeting the needs of compact, efficient and continuous mass production. The device includes a machine tool 1 (the machine tool cover is not shown in the figure), a turntable 201 is arranged above the machine tool 1, and several clamps 202 are rotatably mounted on the turntable 201. The clamps 202 are circular and have a core column 206 at the center. After the workpiece is placed on the clamp 202, it is sleeved on the core column 206 and movably fits against the outer surface of the core column 206. At this time, the clamp 202 can effectively limit the workpiece. The machine tool 1 is equipped with a first motor 203 for driving the turntable 201 to rotate. When the first motor 203 starts and drives the turntable 201 to rotate, it can drive the workpiece on the fixture 202 to revolve. Several second motors 204 are fixedly installed on the turntable 201. The second motors 204 correspond one-to-one with the fixtures 202 and are connected to the opposite fixtures 202 by belt drive 205. When the second motors 204 start, they can drive the fixtures 202 and the workpiece to rotate.

[0024] In this embodiment, as Figure 3As shown, the first motor 203, belt drive 205, and second motor 204 together form a power module for driving the turntable 201 and clamps 202 to rotate. The power module, turntable 201, and clamps 202 together form a conveying unit 2 for rapidly conveying workpieces. Specifically, there are eight clamps 202, allowing for the loading of eight workpieces at a time. The turntable 201 forms eight workstations through the eight clamps 202. In the above structure, the power module can also be replaced with an existing planetary gear structure, which can still achieve the separate rotation of the turntable 201 and clamps 202. The power module, turntable 201, and clamps 202 are all existing mature technologies and will not be described in detail here.

[0025] Furthermore, such as Figure 1 and Figure 2 As shown, the machine tool 1 is equipped with two patching mechanisms 3. The two patching mechanisms 3 correspond to the fixture 202, which limits two of the eight stations to patching stations. In this embodiment, the top surface of the turntable 201 has numbers one to eight, corresponding to the eight stations formed by the fixture 202. The first station and the eighth station are used for loading and unloading, respectively. The second station is used for applying adhesive. The third station and the sixth station correspond to the two patching mechanisms 3 and are both used for patch forming. One of the fourth station and the fifth station corresponds to the housing 4 fixedly installed on the machine tool 1 and is thus limited to a flipping station. The other station, along with the seventh station, is used for the curing of adhesive on the formed workpiece 9 after patching.

[0026] Specifically, such as Figure 2 As shown, the housing 4 corresponds to the fourth station. After the patching mechanism 3 at the third station processes the formed workpiece 9, it is flipped at the fourth station, buffered at the fifth station, and then processed by the patching mechanism 3 at the sixth station to obtain the double-sided formed workpiece 9. Of course, the housing 4 can also correspond to the fifth station, and can also achieve the same flipping effect on the formed workpiece 9.

[0027] It should be noted that the feeding of materials to the first station, the application of adhesive to the second station, the patch forming of the two patching mechanisms 3 to the third and sixth stations, and the unloading from the eighth station all adopt existing feeding machines, adhesive applying machines, patching mechanisms 3, and unloading machines, which are all existing mature technologies and are not shown in the figure. This embodiment focuses on solving the difficulty of flipping the workpieces when the turntable 201 transports large quantities of workpieces quickly, so the above structure is not described in detail.

[0028] Furthermore, such as Figure 2 and Figure 4As shown, the housing 4 is equipped with a moving component 5 corresponding to the position of the molded workpiece 9. The moving component 5 corresponds to the workpiece on the fixture 202 and can be clamped on the outer edge of the molded workpiece 9 after movement. The housing 4 is equipped with a control component 6 for driving the moving component 5 to move. Activating the control component 6 can first drive the moving component 5 to move horizontally closer to the fixture 202 and clamp the molded workpiece 9. Then, it can drive the moving component 5 and the clamped molded workpiece 9 to rise vertically. During the rise, it can drive the clamped molded workpiece 9 to rotate 180 degrees. Then, the control component 6 drives the rotated molded workpiece 9 to fall vertically and return to the fixture 202 through the moving component 5. Finally, the control component 6 drives the moving component 5 to move away from the fixture 202, thereby separating it from the rotated molded workpiece 9. The rotated molded workpiece 9 moves with the turntable 201 to the next patching mechanism 3 for processing, thus obtaining a double-sided molded workpiece 9.

[0029] Among them, such as Figure 2 and Figure 3 As shown, the housing 4, based on the turntable 201, and the moving component 5 and control component 6, based on the housing 4, will not interfere with the rotation of the turntable 201 or the clamping of the workpiece by the fixture 202. Meanwhile, the top of the fixture 202 has an annular groove 207 for the paper base of the formed workpiece 9 to fall into after being flipped. During this process, the moving component 5 will not contact the paper base of the formed workpiece 9, but only the outer edge of the formed workpiece 9 (the outer edge of the workpiece can protrude horizontally from the fixture 202 after falling onto it). The paper base facing downwards after being flipped can also be located within the annular groove 207 to avoid contact. This prevents edge curling, displacement, contamination, delamination, and scrapping caused by the adhesive layer being in an uncured state.

[0030] Reference Figures 4 to 6 In this embodiment, preferably, the moving component 5 includes a guide groove 503 formed in the inner wall of the housing 4, a slider 501 slidably installed in the guide groove 503, and a rack 504 fixedly installed on the housing 4. A short rod 505 is rotatably installed on the surface of the slider 501, and a chuck 502 corresponding to the forming workpiece 9 is fixedly installed at the end of the short rod 505 near the clamp 202. A gear 506 is rotatably installed on the outer surface of the short rod 505 through a one-way bearing. In the initial state, the gear 506 and the rack 504 are misaligned vertically and horizontally.

[0031] When the control component 6 is activated, it can first drive the slider 501, short rod 505, gear 506 and chuck 502 to approach the workpiece horizontally through the guide groove 503, so that the chuck 502 clamps the outer edge of the forming workpiece 9. At this time, the gear 506 and the rack 504 are in an up-down corresponding state. Then, the control component 6 can drive the slider 501, short rod 505, gear 506, chuck 502 and the clamped forming workpiece 9 to rise vertically through the guide groove 503. During the rising process, the short rod 505, chuck 502 and the clamped forming workpiece 9 are rotated 180 degrees through the gear 506 and rack 504. The subsequent control component 6 can first drive the slider 501 and the flipped molded workpiece 9 to descend vertically. At this time, due to the setting of the one-way bearing, the gear 506 will no longer rotate, which in turn will cause the short rod 505 and the flipped molded workpiece 9 to stop rotating. This allows the flipped molded workpiece 9 to return to the fixture 202. Finally, the control component 6 will drive the slider 501, the short rod 505 and the chuck 502 to return to their original positions horizontally away from the fixture 202.

[0032] Among them, the chuck 502 may have a slot 509 on the surface near the fixture 202. The slot 509 is used to clamp the formed workpiece 9. A rubber pad layer (not shown in the figure) may be provided inside the slot 509 to ensure the contact effect with the outer edge of the formed workpiece 9 and to reduce the squeezing damage to the outer edge of the formed workpiece 9.

[0033] Specifically, such as Figure 4 As shown, the guide groove 503 is L-shaped in the housing 4 and is divided into a horizontal groove 5031 and a vertical groove 5032. The control component 6 can first drive the slider 501 horizontally close to the clamp 202 through the horizontal groove 5031, and then drive the slider 501 vertically upward through the vertical groove 5032. In order to achieve automatic reset of the slider 501, two first springs 508 are fixedly installed on the slider 501. The two first springs 508 are not connected to the inner wall of the housing 4, but are in a corresponding state with the inner wall of the housing 4. The two first springs 508 are parallel to the slider 501 and the horizontal groove 5031 and the vertical groove 5032 respectively. When the slider 501 is horizontally close to the clamp 202, one of the first springs 508 can be squeezed. When the slider 501 is vertically rising, the other first spring 508 can be squeezed. Thus, when the control component 6 resets, the two first springs 508 can make the slider 501 drive the short rod 505, gear 506, chuck 502 and the flipped formed workpiece 9 to complete the reset smoothly.

[0034] In this embodiment, the slider 501 is T-shaped, and the longer part is the horizontal bar 507, which is initially located on the side of the horizontal groove 5031 away from the vertical groove 5032. The two first springs 508 are fixedly installed on the horizontal bar 507, one of which is fixedly installed on the surface of the horizontal bar 507 near the clamp 202, and the other is fixedly installed on the top of the horizontal bar 507.

[0035] In the above structure, the surface of the housing 4 near the clamp 202 is provided with a relief groove 401 for the horizontal sliding of the chuck 502. When the chuck 502 is horizontally close to the clamp 202, it moves out of the relief groove 401. At this time, the chuck 502 can freely rise, fall and rotate.

[0036] Reference Figures 4 to 6 In this embodiment, preferably, the control component 6 includes a cylinder 601 fixedly mounted on the machine tool 1. The output shaft of the cylinder 601 is fixedly mounted on a base plate 602, and a push block 603 corresponding to the position of the slider 501 is fixedly mounted on the surface of the base plate 602. When the cylinder 601 is activated, it drives the push block 603 to rise through the base plate 602, which first drives the slider 501 to move horizontally towards the fixture 202 along the transverse groove 5031, and then drives the slider 501 to rise along the vertical groove 5032.

[0037] Specifically, such as Figure 6 As shown, the top of the push block 603 is provided with an inclined surface 604 and a flat surface 605, and the flat surface 605 is located below the inclined surface 604. In the initial state, the inclined surface 604 corresponds to the slider 501. When the push block 603 rises, the slider 501 can be driven to move horizontally close to the clamp 202 through the inclined surface 604 and the horizontal groove 5031. When the horizontal bar 507 enters the junction of the horizontal groove 5031 and the vertical groove 5032, the slider 501 also separates from the inclined surface 604 and is located above the flat surface 605. At this time, the continued rise of the push block 603 can drive the slider 501 to rise vertically through the flat surface 605 and the vertical groove 5032. When the slider 501 rises, the gear 506 can contact the rack 504, thereby driving the chuck 502 and the clamped forming workpiece 9 to rotate 180 degrees.

[0038] In summary, the combination of structures such as turntable 201, fixture 202, and power module enables continuous mass production and significantly improves processing efficiency. The integrated layout of the eight-station turntable 201 integrates the entire process of feeding, gluing, patching, flipping, curing, and unloading. It can load eight workpieces at a time and simultaneously complete double-sided patching within a single turntable 201. The processes are seamlessly connected, perfectly meeting the needs of compact, efficient, and continuous mass production.

[0039] Through the non-damaging flipping of the chuck 502, slider 501 and rack 504, only the outer edge of the formed workpiece 9 is clamped, without contact with the paper base and uncured adhesive layer throughout the process; at the same time, the fixture 202 is equipped with an annular groove 207, so that the paper base can fall into the annular groove 207 after flipping to avoid contact, fundamentally eliminating problems such as adhesive layer curling, displacement, contamination, delamination and scrap, and ensuring product processing quality.

[0040] Through the linkage structure of guide groove 503, short rod 505 and gear 506, the fully automated continuous action of "horizontal clamping - vertical lifting synchronous 180-degree flipping - vertical descent reset - horizontal release" is realized. There is no secondary rotation when the formed workpiece 9 is lowered and reset, ensuring that it is accurately returned to the fixture 202 after flipping, which is compatible with the production rhythm of the intermittent continuous conveying of turntable 201.

[0041] Through the compact design of the housing 4, slider 501, push block 603 and other structures, there is no spatial interference with the rotation of the turntable 201 and the clamping action of the fixture 202. It can be directly embedded into the existing turntable 201 production line without major modification to the original equipment layout, and the equipment compatibility is stronger. At the same time, there is no need to add an offline flipping process or independent flipping equipment. The workpiece can be flipped online within the turntable 201 station, realizing continuous processing from single-sided patch to double-sided patch, which greatly shortens the production process, reduces equipment investment and production line floor space, and ensures the production efficiency of enterprises. Example 2

[0042] Please see Figures 1 to 8 Based on Embodiment 1, in order to further ensure the rapid flipping of different shaped workpieces 9 and to adapt to the scenario where the outer edge of the shaped workpiece 9 is completely blocked by the clamp 202 after it falls onto the clamp 202, the control component 6 and the clamp 202 are further improved. At this time, the clamp 202 has several through holes 208 extending in the vertical direction, and the top of the base plate 602 is provided with a lifting component 7 corresponding vertically to the through holes 208. In the initial state, the push block 603 has a certain vertical distance between itself and the slider 501, and this vertical distance is greater than or equal to the upward stroke of the lifting component 7.

[0043] In the above structure, when the cylinder 601 starts and drives the base plate 602 and the lifting component 7 to rise, the lifting component 7 can extend upward from the through hole 208 (the clamp 202 does not rotate) and lift the forming workpiece 9 until the lifting component 7 and the top of the clamp 202 are abutted and can no longer rise. At this time, the bottom of the forming workpiece 9 and the top of the clamp 202 form a gap, and the inclined surface 604 of the push block 603 and the slider 501 form a corresponding fit. Then the cylinder 601 drives the base plate 602 to continue to rise while the lifting component 7 does not move. The base plate 602 drives the push block 603 to perform the working process in Embodiment 1, clamping the outer edge of the forming workpiece 9 lifted by the lifting component 7, and then driving the forming workpiece 9 to rise and complete the flipping.

[0044] Among them, such as Figure 7 As shown, the through hole 208 can be opened in the area corresponding to the annular groove 207, or in the area corresponding to the outer edge of the molded workpiece 9 of the fixture 202. It can also lift the molded workpiece 9, and when it is in the corresponding outer edge, it will not have contact with the paper base and the uncured adhesive layer. In this embodiment, the through hole 208 shown corresponds to the annular groove 207.

[0045] Reference Figures 6 to 8 In this embodiment, preferably, the lifting assembly 7 includes a partition 701, and a top rod 703 corresponding to the position of the through hole 208 is fixedly installed on the top of the partition 701. The top rod 703 and the through hole 208 can be arranged in an array, which has better stability when lifting the formed workpiece 9. Several second springs 702 are fixedly installed in an array between the bottom of the partition 701 and the top of the base plate 602. The second springs 702 make the partition 701 have an upward tendency. In order to improve the stability of the partition 701, a telescopic rod (not shown in the figure) can also be fixedly installed between the partition 701 and the base plate 602.

[0046] When the base plate 602 rises, it drives the push block 603 to rise towards the slider 501, and through the second spring 702, it drives the partition plate 701 and the push rod 703 to rise. At this time, the push rod 703 extends through the through hole 208 and lifts the formed workpiece 9 until the top of the partition plate 701 abuts against the bottom of the clamp 202, making the partition plate 701 unable to rise further. At this time, the inclined surface 604 of the push block 603 contacts the slider 501. Then the base plate 602 continues to rise and squeezes the second spring 702. At this time, through the inclined surface 604, the guide groove 503 and the slider 501, the continuous action of horizontal clamping - vertical rising synchronous 180-degree flip - vertical falling reset - horizontal release can be repeated. After the formed workpiece 9 is flipped and vertically lowered to reset, the workpiece is lifted by several push rods 703 and can be restored to a horizontal state, which facilitates the return of the flipped formed workpiece 9 to the clamp 202.

[0047] Compared to Embodiment 1, the structure of push rod 703, chuck 502 and rack 504 is linked to adapt to special working conditions. Push rod 703 corresponds to through hole 208 of clamp 202, which can lift the outer edge of the formed workpiece 9 that is blocked by clamp 202, so that the bottom of the formed workpiece 9 and the top of clamp 202 are separated, allowing chuck 502 to smoothly contact and clamp the outer edge of the formed workpiece 9, realizing normal flipping under this special working condition, and greatly improving the equipment's adaptability to workpieces of different specifications and different placement states.

[0048] By using the through hole 208 to create different opening positions of the clamp 202, the push rod 703 can only contact the non-paper-based and non-adhesive-layer areas of the molded workpiece 9, while the chuck 502 only clamps the outer edge of the molded workpiece 9 and does not contact the paper base or uncured adhesive layer throughout the process; and after the workpiece is lifted and flipped, there is no interference from the push rod 703 and the clamp 202, which continues and ensures the product processing yield.

[0049] With the lifting design of the push rod 703 based on the through hole 208, the formed workpiece 9 can be lifted by the push rod 703 after it is flipped down, and can quickly return to a horizontal state. Compared with falling directly back to the fixture 202, it is more conducive to the precise and stable reset of the formed workpiece 9 onto the fixture 202, avoiding problems such as limit failure and subsequent processing positioning deviation caused by the tilt of the formed workpiece 9, and adapting to the cycle requirements of continuous production of the turntable 201.

[0050] Through the structural design of the partition plate 701, the push rod 703, and the second spring 702, the push rod 703 and the through hole 208 are arranged in an array to improve the stability of the workpiece during the lifting process and prevent the workpiece from tilting or falling. At the same time, the cooperation between the second spring 702 and the telescopic rod makes the lifting and resetting action of the lifting assembly 7 smooth and without jamming, which can adapt to the production needs of large batch and high frequency, and will not affect the efficiency of the production line due to lifting action failure.

[0051] By improving the structure of the partition plate 701 based on the base plate 602, the linkage between the push block 603 and the slider 501, and the flipping process of the short rod 505 can remain unchanged. It can be directly upgraded and modified on the basis of the original equipment without adding a new drive device. The modification cost is low, the overall structure of the equipment remains compact, and no additional control programs and operating steps are required. It is highly matched with the intermittent rotation rhythm of the turntable 201, ensuring the compactness, efficiency and continuous operation of the production line. Example 3

[0052] Please see Figures 1 to 10 Based on Embodiment 2, in order to further ensure the rapid flipping of different molded workpieces 9 and adapt to the clamping and flipping requirements of molded workpieces 9 with different thicknesses, the chuck 502 is further improved. At this time, a clamping component 8 is provided inside the slot 509. The clamping component 8 is flush with the slot surface of the slot 509 and will not interfere with the insertion of the outer edge of the molded workpiece 9 into the slot 509. Moreover, during the movement of the chuck 502, the clamping component 8 can stably clamp the outer edge of the molded workpiece 9.

[0053] Reference Figures 9 to 10 In this embodiment, preferably, the clamping assembly 8 includes a round rod 802 slidably mounted in the chuck 502 and two support rods 803 rotatably mounted in the slot 509. Abutment plates 804 flush with the slot surface of the slot 509 are fixedly mounted on the outer surface of the support rods 803. A third spring 805 is fixedly mounted between one end of the round rod 802 and the chuck 502, and an arc plate 801 that can slide within the slot 509 and slidably engages with both abutment plates 804 is fixedly mounted on the other end. When the outer edge of the formed workpiece 9 enters the slot 509, it contacts the arc plate 801 and pushes the round rod 802 to compress the third spring 805. At this time, the arc plate 801 can drive the two abutment plates 804 to rotate relative to each other based on the support rods 803, thereby stably clamping the outer edge of the formed workpiece 9.

[0054] Among them, a slope 806 is provided on the opposite side of the two abutment plates 804 and near the round rod 802. The two slopes 806 are designed in a figure-eight shape. When the arc plate 801 moves towards the short rod 505, the slope 806 causes the abutment plate 804 to deflect and tilt up based on the round rod 802, thereby completing the clamping of the outer edge of the formed workpiece 9.

[0055] Compared to Embodiment 2, the structure of the arc plate 801, the round rod 802, and the abutment plate 804 are used to clamp workpieces of various thicknesses. The clamping distance can be automatically adjusted according to the thickness of the outer edge of different workpieces. This can firmly clamp thin workpieces while avoiding squeezing damage to thick workpieces. It perfectly adapts to the clamping and flipping requirements of paper-based friction sheets of different thicknesses, further expanding the applicability of the equipment.

[0056] The adaptive and stable clamping is achieved through the structure of the abutment plate 804, the slope 806 and the slot 509. The figure-eight-shaped slope 806 can drive the two abutment plates 804 to rotate and approach each other, automatically clamping the outer edge of the workpiece. The clamping force is adapted to the thickness of the workpiece and the clamping position is stable, which can ensure the cycle time and processing accuracy of the turntable 201 in continuous production.

[0057] By combining the structures such as the chuck 502, the arc plate 801, and the abutment plate 804, only the local structure of the chuck 502 needs to be improved, without the need for a major adjustment to the overall layout of the equipment. This results in low modification costs, strong equipment compatibility, and easy upgrades for enterprises, thus meeting more needs in actual use.

Claims

1. A paper-based friction sheet forming device, comprising a machine tool, a turntable, and two sheet-applying mechanisms, wherein a plurality of fixtures are rotatably mounted on the turntable, and the machine tool is provided with a power module for driving the turntable and fixtures to rotate, characterized in that, The two placement mechanisms correspond to two fixtures to form two placement stations. A housing corresponding to one of the fixtures is fixedly installed on the machine tool. The fixture is located between the two fixtures corresponding to the two placement stations. The housing is equipped with a moving component corresponding to the position of the workpiece. The housing is also equipped with a control component for driving the moving component. When the control component is activated, it first moves the moving component horizontally closer to the fixture and clamps the workpiece. Then, it moves the moving component and the clamped workpiece vertically upward. During the upward movement, the clamped workpiece can be rotated 180 degrees.

2. The paper-based friction sheet forming equipment according to claim 1, characterized in that, The moving component includes a guide groove formed in the housing, a slider slidably installed in the guide groove, and a rack fixedly installed on the housing. The slider is driven by a control component and a short rod is rotatably mounted on its surface. A chuck corresponding to the forming workpiece is fixedly mounted at the end of the short rod. A gear is rotatably mounted on the outer surface of the short rod through a one-way bearing. Two first springs for resetting are fixedly mounted on the slider.

3. The paper-based friction sheet forming equipment according to claim 2, characterized in that, The guide groove is L-shaped and divided into a horizontal groove and a vertical groove, while the slider is T-shaped and located on the side of the horizontal groove away from the vertical groove.

4. The paper-based friction sheet forming equipment according to claim 2, characterized in that, The slider protrudes into the guide groove to form a crossbar, one of which is fixedly installed on the surface of the crossbar near the clamp, and the other is fixedly installed on the top of the crossbar.

5. The paper-based friction sheet forming equipment according to claim 2, characterized in that, The gear and rack are arranged in a staggered manner. When the slider approaches the clamp horizontally, the gear and rack are aligned vertically. When the gear and rack come into contact, they can drive the short rod and the chuck to rotate 180 degrees.

6. The paper-based friction sheet forming equipment according to claim 2, characterized in that, The control component includes a cylinder fixedly mounted on the machine tool, the output shaft of the cylinder being fixedly mounted on a base plate, and a push block corresponding to the position of the slider being fixedly mounted on the surface of the base plate.

7. The paper-based friction sheet forming equipment according to claim 6, characterized in that, The top of the push block has an inclined surface and a flat surface, with the flat surface located below the inclined surface and the inclined surface corresponding to the slider.

8. The paper-based friction sheet forming equipment according to claim 6, characterized in that, The clamp has several through holes running vertically, and the top of the base plate is provided with lifting components corresponding to the vertical holes. A gap is provided between the push block and the slider running vertically.

9. The paper-based friction sheet forming equipment according to claim 8, characterized in that, The lifting assembly includes a partition, a top rod corresponding to the position of the through hole is fixedly installed on the top of the partition, and several second springs are fixedly installed between the partition and the bottom plate.

10. The paper-based friction sheet forming equipment according to any one of claims 1-9, characterized in that, A core column protrudes upward from the center of the clamp, and an annular groove is formed on the surface of the clamp outside the core column.

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