A forming device for square materials

Abstract

A forming device for square materials, comprising a ring rubber part expanding station, a ring rubber part shaping station, a film covering and heat sealing station, and a blanking station which are arranged in sequence. The above four stations are arranged in a ring on a station turntable; the working turntable rotates to sequentially complete four processes of expanding the ring rubber part, putting the square material into the ring rubber part and shaping it, film covering and heat sealing the shaped square material, and blanking. Compared with the prior art, a pipelined forming device for square materials is provided, thus meeting the process requirements of covering a rubber frame on the outside of the square material and covering a film on the top.

Description

Technical Field

[0001] The present invention relates to production and processing equipment, and particularly to a forming device and a forming method for square materials. Background Art

[0002] Generally, a square material is covered with a rubber frame on the outside and a film on the top. There is no integrated forming device for such square materials, nor any forming method in the prior art. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: in view of the process requirements of covering a square material with a rubber frame on the outside and a film on the top, to provide a forming device and a forming method for square materials.

[0004] A forming device for square materials includes a ring rubber part expanding station, a ring rubber part shaping station, a film covering and heat sealing station, and a blanking station arranged in sequence. The above four stations are arranged in a ring on a station turntable; the working turntable rotates to sequentially complete the four processes of expanding the ring rubber part, placing the square material into the ring rubber part and shaping it, heat sealing the shaped square material with a film, and blanking.

[0005] The ring rubber part expanding station includes a ring rubber part feeding mechanism and an automatic expanding and shaping mechanism. Among them, the ring rubber part feeding mechanism includes a ring rubber part conveyor belt and a ring rubber part transfer module, and the automatic expanding and shaping mechanism is located on the station turntable; the ring rubber part conveyor belt conveys the ring rubber part to before the station turntable, and the ring rubber part transfer module grabs the ring rubber part and places it on the automatic expanding and shaping mechanism on the station turntable.

[0006] The ring rubber part shaping station includes a square material feeding mechanism and an automatic expanding and shaping mechanism. Among them, the square material feeding mechanism includes a square material conveyor belt and a square material transfer module, and the automatic expanding and shaping mechanism is located on the station turntable; the square material conveyor belt conveys the square material to before the station turntable, and the square material transfer module sucks the square material and places it on the automatic expanding and shaping mechanism on the station turntable.

[0007] The film covering and heat sealing station includes a film conveyor belt, a film transfer module, and a heat sealing mechanism located below the film transfer module; when the shaped square material rotates to this station, the film transfer module sucks the film from the film conveyor belt and then places it on the shaped square material; then, the heat sealing mechanism presses down on the square material under the drive of the film transfer module to complete heat sealing.

[0008] The film transfer module includes a film transfer motor. A first rotating arm is connected to the output rotating shaft of the film transfer motor. The end of the first rotating arm is rotatably connected to a second rotating arm. A pressing cylinder is arranged on the second rotating arm, and the end of the output shaft of the pressing cylinder is connected to the heat sealing mechanism.

[0009] The hot-sealing mechanism includes a mounting plate and a suction plate disposed below the mounting plate. A thin film is adsorbed on the suction plate. The top surface of the mounting plate is connected to a downward pressing assembly, and the downward pressing assembly is connected to a thin film transfer module. A side hot-sealing assembly and a middle hot-sealing assembly are arranged on the mounting plate.

[0010] The downward pressing assembly includes a downward pressing joint connected to the output shaft of a downward pressing cylinder. The lower end of the downward pressing joint is connected to a downward pressing shaft, and the end of the downward pressing shaft is connected to a downward pressing block. Through holes are formed in both the mounting plate and the suction plate, and the downward pressing block is located in the through holes.

[0011] The side hot-sealing assembly includes a heating rod mounting plate, which has a "work" - shaped structure and includes a top plate mounting plate, an intermediate body, and a bottom heating foot connected together. Among them, the top plate mounting plate is located on the upper surface of the mounting plate, and a heating rod placement hole is provided on the top plate mounting plate; the bottom heating foot is located on the lower bottom surface of the suction plate.

[0012] The middle hot-sealing assembly is directly mounted on the downward pressing block, and the middle hot-sealing assembly is at least one heating rod.

[0013] A thin film suction image recognition device and a thin film placement image recognition device are arranged at the film laminating and hot-sealing station. Both the thin film suction image recognition device and the thin film placement image recognition device include a camera. The camera transmits the collected picture information to an image recognition module, and the image recognition module is connected to a controller. Among them, the camera in the thin film suction image recognition device faces the thin film conveyor belt, and the camera in the thin film placement image recognition device faces the square material at the film laminating and hot-sealing station.

[0014] Compared with the prior art, a square material forming device with a streamlined production process is provided, thus meeting the process requirements of covering a square material with a rubber frame and laminating the top with a film. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the working turntable structure of the present invention;

[0017] Figure 3 It is a schematic diagram of the structure of the automatic spreading and shaping mechanism of the present invention;

[0018] Figure 4 It is a structural diagram of the lifting mechanism and the spreading mechanism of the present invention;

[0019] Figure 5 It is a mounting schematic diagram of the rotating motor;

[0020] Figure 6 It is a schematic diagram of the structure of the radial sliding mechanism;

[0021] Figure 7Schematic structural diagram of a circumferential rotation mechanism;

[0022] Figure 8 Overall structural diagram of an annular rubber part and a square material located on a shaping mechanism;

[0023] Figure 9 Structural diagram of a shaping mechanism with the annular rubber part and the square material removed;

[0024] Figure 10 Schematic diagram of the state where a spring-back mechanism acts on a shaping plate;

[0025] Figure 11 Overall structural diagram of a spring-back mechanism;

[0026] Figure 12 Structural diagram of the state where a spreading mechanism and a shaping mechanism cooperate to work;

[0027] Figure 13 Overall structural diagram of a film transfer module and a heat-sealing mechanism;

[0028] Figure 14 Front axonometric view of a heat-sealing mechanism;

[0029] Figure 15 Rear axonometric view of a heat-sealing mechanism;

[0030] Figure 16 Bottom structural diagram of a heat-sealing mechanism;

[0031] Figure 17 Schematic structural diagram of a film suction image recognition device and a film placement image recognition device. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is 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 therefore should not be construed as a limitation to the present invention.

[0034] Such as Figure 1 、 Figure 2As shown in the figure, a forming device for square materials includes a ring rubber part expanding station 105, a ring rubber part shaping station 106, a film covering and heat sealing station 107, and a blanking station 108, which are arranged in sequence. The above four stations are arranged in a ring on the station turntable 101. The working turntable 101 is rotatably arranged on the station table 104, and sequentially completes four processes: expanding the ring rubber part, placing the square material into the ring rubber part and shaping it, film covering and heat sealing the shaped square material, and blanking.

[0035] The above-mentioned ring rubber part expanding station 105 includes a ring rubber part feeding mechanism and an automatic expanding and shaping mechanism 100. Among them, the ring rubber part feeding mechanism includes a ring rubber part conveyor belt and a ring rubber part transfer module. The automatic expanding and shaping mechanism 100 is located on the station turntable 101. It should be noted that the ring rubber part conveyor belt is the conveyor belt in the prior art; the ring rubber part transfer module is a robot gripper, which is also in the prior art. During operation, the ring rubber part conveyor belt transports the ring rubber part 102 to the front of the station turntable 101, and the ring rubber part transfer module grabs the ring rubber part 102 and places it on the automatic expanding and shaping mechanism 100 on the station turntable 101. At the ring rubber part expanding station, only the process of expanding the ring rubber part is completed.

[0036] The above-mentioned ring rubber part shaping station 106 includes a square material feeding mechanism and an automatic expanding and shaping mechanism 100. Among them, the square material feeding mechanism includes a square material conveyor belt and a square material transfer module. The automatic expanding and shaping mechanism 100 is located on the station turntable 101. It should be noted that the square material conveyor belt is the conveyor belt in the prior art; the square material transfer module is also in the prior art. The lower end of the transfer module can use a negative pressure adsorption device to adsorb the square material, all of which are in the prior art. During operation, the square material conveyor belt transports the square material 103 to the front of the station turntable 101, and the square material transfer module sucks the square material 103 and places it on the automatic expanding and shaping mechanism 100 on the station turntable 101. At the ring rubber part shaping station, the process of placing the square material into the expanded ring rubber part and shaping the two is completed.

[0037] The above-mentioned film covering and heat sealing station 107 includes a film conveyor belt, a film transfer module 4, and a heat sealing mechanism 5 located at the lower end of the film transfer module 4. When the shaped square material 103 rotates to this station, the film transfer module 4 sucks the film from the film conveyor belt and then places it on the shaped square material 103; then, the heat sealing mechanism 5 presses down on the square material 103 driven by the film transfer module 4 to complete heat sealing. At the film covering and heat sealing station, the process of covering the film on the shaped square material and heat sealing the film-covered square material is completed.

[0038] Preferably, to ensure the accuracy of sucking the film during the above operations, a film sucking image recognition device 6 is provided; to ensure the accurate placement of the film on the square material, a film placement image recognition device 7 is provided. The above-mentioned film sucking image recognition device 6 and film placement image recognition device 7 are arranged on the film covering and hot sealing station 107 through a bracket 109.

[0039] The above-mentioned blanking station 108 includes a blanking transfer module and a blanking conveyor belt. After the square material with hot sealing is rotated to the blanking station, the blanking transfer module grabs the square material from this station and then puts it into the blanking conveyor belt.

[0040] Furthermore, the above-mentioned annular rubber part expanding station 105, annular rubber part shaping station 106, film covering and hot sealing station 107, and blanking station 108 are all double stations, that is, two sets of the same mechanisms are arranged at each station. When rotating once, the two stations rotate simultaneously, thereby improving work efficiency.

[0041] Furthermore, the automatic expanding and shaping mechanism 100 can be only arranged at the annular rubber part expanding station 105 and the annular rubber part shaping station 106. However, due to the rotating annular station setting of the present invention, the automatic expanding and shaping mechanism 100 is arranged at each station. The actions completed by the automatic expanding and shaping mechanism 100 are: expanding the annular rubber part 102, and after another workpiece (square material 103) is placed into the annular rubber part 102, shaping the annular rubber part 102 so that the annular rubber part 102 closely adheres to the square material 103.

[0042] As Figure 3 shown, the automatic expanding and shaping mechanism 100 includes a lifting mechanism 1, on which an expanding mechanism 2 is arranged. The lifting mechanism 1 drives the expanding mechanism 2 to rise / fall. It also includes a shaping mechanism 3, on which a shaping table 31 for placing the annular rubber part 102 is arranged. When the lifting mechanism 1 drives the expanding mechanism 2 to rise, when the expanding claws 21 of the expanding mechanism 2 enter the annular rubber part 102, the expanding claws 21 expand the annular rubber part 102 outwards, and at the same time, the expanding claws 21 also expand the shaping table 31; after the square material 103 is placed into the annular rubber part 102, the shaping table 31 retracts to shape the annular rubber part 102.

[0043] As Figure 4 、 Figure 5 shown, the lifting mechanism 1 includes a jacking cylinder 11 and a jacking shaft 12. Among them, the jacking cylinder 11 is fixed on the frame 13, and the top end of the jacking shaft 12 is fixedly connected to the expanding mechanism 2. When the jacking cylinder 11 acts, the jacking shaft 12 extends upwards, driving the expanding mechanism 2 to move upwards.

[0044] As Figure 4 、 Figure 5As shown in the figure, the expansion mechanism 2 includes a circumferential rotation mechanism 22 and a radial sliding mechanism 23. The expansion claws 21 are slidably arranged in the radial sliding mechanism 23, and the expansion claws 21 are inserted into the circumferential rotation mechanism 22 and are restricted by the rotation trajectory of the circumferential rotation mechanism 22. That is to say, the expansion claws 21 slide in the radial sliding mechanism 23 under the restriction of the rotation trajectory of the circumferential rotation mechanism 22.

[0045] As Figure 7 shown in the figure, the circumferential rotation mechanism 22 includes a rotation motor 221, and a rotating disk 223 is fixed to the end of the rotating shaft 222 of the rotation motor 221. When the rotation motor 221 operates, its rotating shaft 222 starts to rotate, thereby driving the rotating disk 223 to rotate. On the rotating disk 223, there is an arc-shaped expansion claw track groove 224.

[0046] Furthermore, the number of the arc-shaped expansion claw track grooves 224 should correspond to the number of the expansion claws 21. When four expansion claws 21 are provided, four arc-shaped expansion claw track grooves 224 are provided on the rotating disk. The centers of the four arc-shaped expansion claw track grooves 224 are the same, which is the central axis of the rotating shaft 222.

[0047] Furthermore, the rotation motor 221 is fixed to the frame 13 of the lifting mechanism 1 to make its structure compact.

[0048] As Figure 6 、 Figure 7 shown in the figure, the radial sliding mechanism 23 includes a radial slideway 231. A slider 232 is slidably arranged on the radial slideway 231. There is a rotating shaft 233 on the slider 232. The other end of the rotating shaft 233 is connected to the expansion claw 21. The rotating shaft 233 is located in the arc-shaped expansion claw track groove 224, and the expansion claw 21 is located above the rotating disk 223.

[0049] Specifically, a blind hole I is provided on the slider 232, and a connecting block 236 is provided below the expansion claw 21. A blind hole II is also provided on the connecting block 236. The rotating shaft 233 is rotatably arranged in the blind hole I and the blind hole II. Furthermore, the diameter of the rotating shaft 233 is smaller than the groove width of the arc-shaped expansion claw track groove 224, but the size of the connecting block 236 is larger than the groove width of the arc-shaped expansion claw track groove 224. In this way, during assembly, the rotating shaft 233 is located in the arc-shaped expansion claw track groove 224, and the connecting block 236 is located above the rotating disk 223.

[0050] When the circumferential rotation mechanism 22 and the radial sliding mechanism 23 cooperate to work, when the rotating disk 223 in the circumferential rotation mechanism 22 rotates, the arc-shaped expansion claw track groove 224 also rotates. When the rotating disk 223 rotates, the rotating shaft 233 located in the arc-shaped expansion claw track groove 224 drives the expansion claw 21 to slide on the radial slideway 231.

[0051] Further, the number of the radial chutes 231 corresponds to the number of the spreading claws. In this embodiment, four radial chutes 231 are provided as an example for illustration. The four spreading claws 21 just hold up the four corners of the annular rubber part.

[0052] Further, a photoelectric sensor 234 is arranged below the rotating disk 223 and on the side of the radial chute 231. The photoelectric sensor 234 is mounted on a sensor bracket 235. In this way, by measuring the sliding distance of the slider 232 by the photoelectric sensor 234, the spreading distance of the annular rubber part can be obtained.

[0053] As Figure 8 shown, the annular rubber part 102 and the square material 103 are located on the shaping mechanism. After removing the annular rubber part 102 and the square material 103, the shaping mechanism 3 is as Figure 9 shown. The shaping mechanism 3 includes a shaping table 31 and a spring-back mechanism 32 for retracting and shaping the shaping plate 313 in the shaping table 31.

[0054] As Figure 9 shown, the shaping table 31 includes a tabletop 311. A spreading claw activity slot 312 is formed in the tabletop 311, and a shaping plate 313 is located on the tabletop 311. Both ends of each shaping plate 313 are located above the spreading claw activity slot 312. When the spreading claws 21 spread outwards in the spreading claw activity slot 312, the spreading claws 21 touch the shaping plate 313 and drive the shaping plate 313 to spread outwards.

[0055] Specifically, the tabletop 311 is a rectangular tabletop. Four shaping plates 313 are arranged on the tabletop 311, and the four shaping plates 313 enclose a rectangle. Each shaping plate 313 is a movable plate and is only placed on the tabletop 311, and each shaping plate corresponds to a spring-back mechanism 32, and the action of the shaping plate 313 is controlled by the spring-back mechanism 32; in this way, each shaping plate 313 can shape one side of the annular rubber part.

[0056] The spreading claw activity slot 312 is located at the four corners of the tabletop 311. When the spreading claws 21 are lifted and inserted into the shaping table 31, they are inserted into the spreading claw activity slot 312. The spreading claw activity slot 312 is a strip-shaped long slot, so as to have enough space for the spreading claws 21 to move when the spreading claws 21 spread outwards. When each spreading claw 21 spreads outwards, it simultaneously touches and drives two shaping plates 313 to spread outwards.

[0057] As Figure 10 、 Figure 11 、 Figure 12As shown, the rebound mechanism 32 includes a shaping plate fixing block 321, which is slidably arranged on a slide bar 322, on which a mounting block 324 is fixed, and a compression spring 323 is sleeved on the slide bar 322, one end of the compression spring 323 is fixedly connected to the shaping plate fixing block 321, and the other end is fixedly connected to the mounting block 324. When the shaping plate 313 is opened by the opening claw 21, the shaping plate 313 slides outward with the shaping plate fixing block 321, and compresses the compression spring 323 at the same time. When the spreading claw 21 is moved downward by the lifting mechanism 1, the spreading claw 21 disengages from the spreading claw movable groove 312, and no longer applies outward force to the shaping plate 313. At this time, under the rebound of the compression spring 323, the shaping plate fixing block 321 retracts with the shaping plate 313. During the retraction process, the shaping plate 313 gently squeezes the four sides of the annular rubber member 102 inward, so that the annular rubber member is close to the four sides of the square material 103.

[0058] Furthermore, in order to prevent the compression spring 323 from having too large a rebound force and damaging the square material 103, a stopper 326 is provided on the rebound path of the shaping plate 313. The stopper 326 is higher than the height of the shaping plate 313, so as to block the rebound position of the shaping plate 313. The stopper 326 is fixed on the rebound mechanism fixing frame 327. The stopper 326 is provided with a through hole, and the through hole is sleeved with an internal thread. The front end of the slide bar 322 is sleeved with an external thread. A screw nut screw mechanism is formed between the slide bar 322 and the stopper 326. An adjustment handle 325 is provided at the end of the slide bar 322. The adjustment handle is rotated to adjust the position of the stopper 326 relative to the slide bar 322, thereby adjusting the rebound position of the shaping plate 313.

[0059] like Figure 13 As shown, the film transfer module 4 includes a film transfer motor 41, the output shaft of the film transfer motor 41 is connected to a first rotating arm 42, the end of the first rotating arm 42 is rotatably connected to a second rotating arm 43, a downward pressure cylinder 44 is arranged on the second rotating arm 43, and the end of the output shaft of the downward pressure cylinder 44 is connected to the hot sealing mechanism 5.

[0060] like Figure 14 , Figure 15 , Figure 16 As shown, the hot sealing mechanism 5 includes a mounting plate 51 and a suction plate 52 arranged below the mounting plate, a suction hole 521 is arranged on the bottom surface of the suction plate 52, an air duct is arranged inside the suction plate 52, the suction hole 521 is connected to the suction pipe joint 522 through the air duct, and the suction pipe joint 522 is arranged on the mounting plate 51.

[0061] The top surface of the mounting plate 51 is connected to the downward pressing assembly 55, and the downward pressing assembly 55 is connected to the output shaft of the downward pressing cylinder 44. The downward pressing assembly 55 includes a downward pressing joint 551 connected to the output shaft of the downward pressing cylinder 44. The lower end of the downward pressing joint 551 is connected to a downward pressing shaft 552, and the end of the downward pressing shaft 552 is connected to a downward pressing block 553. Through holes are formed in both the mounting plate 51 and the air suction plate 52, and the downward pressing block 553 is located in the through holes.

[0062] A side heat-sealing assembly 53 and a middle heat-sealing assembly 54 are arranged on the mounting plate 51. Among them, the side heat-sealing assembly 53 is located on the four sides of the mounting plate 51 to heat-seal the four sides of the shaped square material; the middle heat-sealing assembly 54 is located in the middle of the mounting plate 51 to heat-seal the middle part of the shaped square material.

[0063] The side heat-sealing assembly 53 includes a heating rod mounting plate 531. The heating rod mounting plate 531 has an "I" - shaped structure, including a top plate mounting plate 534, an intermediate body, and a bottom heating foot 532 connected together. Among them, the top plate mounting plate 534 is located on the upper surface of the mounting plate 51 and can be mounted on the mounting plate 51 through bolts or the like. Heating rod placement holes 533 are provided on the top plate mounting plate 534; the bottom heating foot 532 is located on the lower bottom surface of the air suction plate 52. It should be noted that the bottom heating foot 532 has a certain thickness, so that the bottom surface of the bottom heating foot 532 is lower than the bottom surface of the air suction plate 52.

[0064] The middle heat-sealing assembly 54 is directly mounted on the downward pressing block 553. The middle heat-sealing assembly 54 is at least one heating rod. At least one heating rod mounting hole is provided on the downward pressing block 553, and the middle heat-sealing assembly 54 is mounted in the heating rod mounting hole.

[0065] It should be noted that the side heat-sealing assembly 53, the middle heat-sealing assembly 54, and the downward pressing block 553 are all made of heat-conducting materials.

[0066] During operation, when the first rotating arm 42 and the second rotating arm 43 rotate to the accurate position of the square material, the output shaft of the downward pressing cylinder 44 extends downward, causing the overall heat-sealing mechanism 5 to move downward. During the downward movement, the side heat-sealing assembly 53 of the heat-sealing mechanism 5 (due to the bottom surface of the bottom heating foot 532 being lower than the bottom surface of the air suction plate 52) first contacts the square material. At this time, the heating rods in the side heat-sealing assembly 53 start to work. After heating for a preset time, the downward pressing cylinder 44 continues to press downward. At this time, the downward pressing block 553 continues to move downward through the through holes in the mounting plate 51 and the air suction plate 52 and directly contacts the upper surface of the square material. At this time, the middle heat-sealing assembly 54 starts to work and heats the middle position of the square material.

[0067] Furthermore, a thermocouple 554 is connected to the downward pressing block 553 to measure the temperature of the downward pressing block 553, and thus the temperature of the middle heating part of the square material can be obtained.

[0068] Further, a wire mounting bracket 555 is provided on the mounting plate 51 to facilitate the electrical wiring of the side heat-sealing assembly 53 and the middle heat-sealing assembly 54.

[0069] As Figure 17 shown, to ensure accurate film suction, a film suction image recognition device 6 is provided; to ensure accurate placement of the film on the square material, a film placement image recognition device 7 is provided. The film suction image recognition device 6 and the film placement image recognition device 7 are arranged on the film covering and heat-sealing station 107 through a bracket 109.

[0070] Both the film suction image recognition device 6 and the film placement image recognition device 7 include cameras. The cameras transmit the collected picture information to the image recognition module, and the image recognition module is connected to the controller, and the controller controls the film transfer motor 41. During operation, the camera in the film suction image recognition device 6 faces the film conveyor belt, and the camera in the film placement image recognition device 7 faces the square material on the film covering and heat-sealing station 107.

[0071] It should be noted that the image recognition technology involved in the above process is the prior art. It is only necessary to judge that the position of the suction plate in the heat-sealing mechanism 5 below the film transfer module 4 is consistent with the position of the film to be sucked / the square material to be film-covered. If not, control the film transfer motor 41 to adjust the rotation angles of the first swing arm 42 and the second swing arm 43. This belongs to the conventional technology in the field of transfer module / robot control and will not be elaborated here.

[0072] The working process of the present invention is as follows:

[0073] 1. The annular rubber part 102 is grabbed by the annular rubber part transfer module and placed on the annular rubber part expanding and shaping station 105. At this time, the lifting cylinder 11 of the lifting mechanism 1 of the automatic expanding and shaping mechanism 100 at the annular rubber part expanding and shaping station 105 acts, driving the expanding mechanism 2 to rise into the shaping mechanism 3 and enter the expanding claw movable groove 312. At this time, the four expanding claws 21 are located inside the annular rubber part 102;

[0074] 2. The circumferential rotation mechanism 22 of the expanding mechanism 2 acts, and its rotation motor 221 drives the rotating disk 223 to rotate, so that the expanding claws 21 slide outward along the radial sliding mechanism 23. During the outward sliding process, the annular rubber part 102 is expanded outward, and during the outward expansion of the expanding claws 21, the shaping plate 313 is touched and driven to expand outward; during the process, the photoelectric sensor detects the traveling distance of the expanding claws 21 in real time, so as to master the expanding degree of the annular rubber part 102;

[0075] 3. The expanded annular rubber part is transferred to the annular rubber part shaping station 106, and the square material 103 is sucked by the square material transfer module and placed into the expanded annular rubber part 102. After the square material 103 is placed, the lifting cylinder 11 of the lifting mechanism 1 operates to drive the expanding mechanism 2 to move downward to the initial position;

[0076] 4. Under the resilience of the compression spring 323, the shaping plate fixing block 321 drives the shaping plate 313 to retract. During the retraction process, the shaping plate 313 gently squeezes the four sides of the annular rubber part 102 inward, so that the annular rubber part fits tightly against the four sides of the square material 103;

[0077] 5. The shaped square material is rotated to the film laminating and sealing station 107. The film transfer module 4 sucks the film from the film conveyor belt and then places it on the shaped square material 103. Then, the sealing mechanism 5 presses down the square material 103 driven by the film transfer module 4, first seals the four side edges of the square material, and then seals the middle part of the square material, thus completing the sealing process of the square material.

[0078] 6. The sealed square material is rotated to the blanking station 108. After the blanking transfer module grabs the square material from this station, it is placed into the blanking conveyor belt.

[0079] The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the overall concept of the present invention, several changes and improvements can still be made, and these should also be regarded as the protection scope of the present invention.

Claims

1. A forming device for square materials, characterized in that: It includes a ring rubber part expanding work position (105), a ring rubber part shaping work position (106), a film covering and heat sealing work position (107), and a blanking work position (108) arranged in sequence. The above four work positions are arranged in a ring on a work position turntable (101); the work turntable (101) rotates to sequentially complete the four processes of expanding the ring rubber part, placing a square material into the ring rubber part and shaping it, film covering and heat sealing the shaped square material, and blanking. The ring rubber part expanding work position (105) includes a ring rubber part feeding mechanism and an automatic expanding and shaping mechanism (100). Among them, the ring rubber part feeding mechanism includes a ring rubber part conveyor belt and a ring rubber part transfer module. The ring rubber part shaping work position (106) includes a square material feeding mechanism and an automatic expanding and shaping mechanism (100). Among them, the square material feeding mechanism includes a square material conveyor belt and a square material transfer module. An automatic expanding and shaping mechanism (100) is provided at each work position; the automatic expanding and shaping mechanism (100) includes a lifting mechanism (1), a expanding mechanism (2) is arranged on the lifting mechanism (1), and also includes a shaping mechanism (3). A shaping table (31) for placing the ring rubber part (102) is arranged on the shaping mechanism (3). The expanding mechanism (2) includes a circumferential rotation mechanism (22) and a radial sliding mechanism (23). The expanding claws (21) are slidably arranged in the radial sliding mechanism (23), and the expanding claws (21) are inserted into the circumferential rotation mechanism (22) and are restricted by the rotation trajectory of the circumferential rotation mechanism (22). The circumferential rotation mechanism (22) includes a rotation motor (221), and a rotating disk (223) is fixed at the end of the rotation shaft (222) of the rotation motor (221); an arc-shaped expanding claw track groove (224) is provided on the rotating disk (223), and the number of the arc-shaped expanding claw track grooves (224) should correspond to the number of the expanding claws (21). The radial sliding mechanism (23) includes a radial slideway (231), a slider (232) is slidably arranged on the radial slideway (231), a rotating shaft (233) is arranged on the slider (232), the other end of the rotating shaft (233) is connected to the expanding claw (21), the rotating shaft (233) is located in the arc-shaped expanding claw track groove (224), and the expanding claw (21) is located above the rotating disk (223). The shaping table (31) includes a tabletop (311), an expanding claw activity groove (312) is opened on the tabletop (311), and a shaping plate (313) is located on the tabletop (311); both ends of each shaping plate (313) are located above the expanding claw activity groove (312). When the expanding claws (21) expand outwards in the expanding claw activity groove (312), they simultaneously touch and drive the two shaping plates (313) to expand outwards. The tabletop (311) is a rectangular tabletop. Four shaping plates (313) are arranged on the tabletop (311), and the four shaping plates (313) enclose a rectangle; each shaping plate corresponds to a spring-back mechanism (32); the spring-back mechanism (32) includes a shaping plate fixing block (321), the shaping plate fixing block (321) is slidably arranged on a sliding rod (322), an installation block (324) is fixed on the sliding rod (322), and a compression spring (323) is sleeved on the sliding rod (322). One end of the compression spring (323) is fixedly connected to the shaping plate fixing block (321), and the other end is fixedly connected to the installation block (324). A limit block (326) is arranged on the spring-back path of the shaping plate (313).

2. The forming device for square materials according to claim 1, wherein: The annular rubber part conveyor belt conveys the annular rubber part (102) to in front of the station turntable (101), and the annular rubber part transfer module grabs the annular rubber part (102) and places it on the automatic expanding and shaping mechanism (100) on the station turntable (101).

3. The forming device for square materials according to claim 1, characterized in that: The square material conveyor belt conveys the square material (103) to in front of the station turntable (101), and the square material transfer module sucks the square material (103) and places it on the automatic expanding and shaping mechanism (100) on the station turntable (101).

4. The forming device for square materials according to claim 1, characterized in that: The film laminating and heat-sealing station (107) includes a film conveyor belt, a film transfer module (4), and a heat-sealing mechanism (5) located below the film transfer module (4); when the shaped square material (103) rotates to this station, the film transfer module (4) sucks the film from the film conveyor belt and then places it on the shaped square material (103); then, the heat-sealing mechanism (5) presses down on the square material (103) driven by the film transfer module (4) to complete heat-sealing.

5. The forming device for square materials according to claim 4, characterized in that: The film transfer module (4) includes a film transfer motor (41), a first rotating arm (42) is connected to the output rotating shaft of the film transfer motor (41), the end of the first rotating arm (42) is rotatably connected to a second rotating arm (43), a pressing cylinder (44) is arranged on the second rotating arm (43), and the end of the output shaft of the pressing cylinder (44) is connected to the heat-sealing mechanism (5).

6. The forming device for square materials according to claim 5, characterized in that: The heat-sealing mechanism (5) includes a mounting plate (51) and a suction plate (52) arranged below the mounting plate. The film is adsorbed on the suction plate (52); the top surface of the mounting plate (51) is connected to a pressing component (55), and the pressing component (55) is connected to the film transfer module (4); a side heat-sealing component (53) and a middle heat-sealing component (54) are arranged on the mounting plate (51).

7. The forming device for square materials according to claim 6, characterized in that: The pressing component (55) includes a pressing joint (551) connected to the output shaft of the pressing cylinder (44), the lower end of the pressing joint (551) is connected to a pressing shaft (552), and the end of the pressing shaft (552) is connected to a pressing block (553); through holes are formed in both the mounting plate (51) and the suction plate (52), and the pressing block (553) is located in the through holes.

8. The forming device for square materials according to claim 6, characterized in that: The side heat-sealing assembly (53) includes a heating rod mounting plate (531). The heating rod mounting plate (531) has an "I"-shaped structure and includes a top plate mounting plate (534), an intermediate body, and a bottom heating foot (532) that are connected together. Among them, the top plate mounting plate (534) is located on the upper surface of the mounting plate (51), and a heating rod placement hole (533) is provided on the top plate mounting plate (534); the bottom heating foot (532) is located on the lower bottom surface of the air suction plate (52).

9. The forming device for square materials according to claim 7, characterized in that: The middle heat-sealing assembly (54) is directly mounted on the lower pressing block (553), and the middle heat-sealing assembly (54) is at least one heating rod.

10. The forming device for square materials according to claim 1, characterized in that: A film suction image recognition device (6) and a film placement image recognition device (7) are provided at the film laminating and heat-sealing station (107); both the film suction image recognition device (6) and the film placement image recognition device (7) include a camera. The camera transmits the collected picture information to the image recognition module, and the image recognition module is connected to the controller; among them, the camera in the film suction image recognition device (6) faces the film conveyor belt, and the camera in the film placement image recognition device (7) faces the square material at the film laminating and heat-sealing station (107).

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