Vulcanization demolding system for synchronous belts

Abstract

The application discloses a vulcanization demolding system of a synchronous belt, which comprises a vulcanization tank, a cooling water tank, a demolding device, an upper and lower mold supporting device and a transfer device; the transfer device comprises a transfer driving device and four mold grabbing devices which are uniformly distributed in a circumferential direction of the transfer driving device; the vulcanization tank, the cooling water tank, the demolding device and the upper and lower mold supporting device are uniformly distributed in a circumferential direction of the transfer driving device; the vulcanization tank, the cooling water tank, the demolding device and the upper and lower mold supporting device correspond to one mold grabbing device and are located directly below the corresponding mold grabbing device on the corresponding side; the transfer driving device drives the four mold grabbing devices to intermittently rotate at an equal angle of 90 degrees with the transfer driving device as the center; the mold grabbing device comprises a mold grabbing frame, a grabbing mechanism vertically arranged on the mold grabbing frame and a mold lifting mechanism for driving the grabbing mechanism to vertically move; and the grabbing mechanism is used for grabbing the synchronous belt mold. The application does not need manual participation and is convenient for mold transfer.

Description

Technical Field

[0001] This application relates to the field of timing belts, and more particularly to a vulcanization and demolding system for timing belts. Background Technology

[0002] Synchronous toothed belts, also known as timing belts, are a type of flexible transmission. They consist of a steel wire rope or fiberglass rope as the reinforcing layer, covered with polyurethane or neoprene rubber. The inner circumference of the belt is toothed to mesh with toothed pulleys.

[0003] In the production process of rubber synchronous belts, a mold is used. The mold is cylindrical and has several evenly distributed toothed grooves on its cylindrical surface. During production, canvas is first wrapped around the mold, followed by steel wire rope or fiberglass rope, and then rubber sheet is wrapped around it. The mold is then transferred to a vulcanizing tank for vulcanization, then transferred to a water tank for cooling, and finally transferred to a demolding device for demolding.

[0004] During the mold transfer process, a crane is usually used for hoisting and transferring the mold. In this process, the operator needs to hook or detach the mold and pull the mold to move it to the corresponding position, which is a rather troublesome operation. Summary of the Invention

[0005] To address the technical problem of cumbersome mold transfer operations, this application provides a synchronous belt vulcanization demolding system.

[0006] The vulcanization and demolding system for synchronous belts provided in this application adopts the following technical solution:

[0007] A vulcanization and demolding system for a synchronous belt includes a vulcanizing tank, a cooling water tank, a demolding device, upper and lower mold support devices, and a transfer device. The upper and lower mold support devices support the synchronous belt mold and keep it vertical. The transfer device includes a transfer drive device and four mold gripping devices evenly distributed around the transfer drive device. The vulcanizing tank, cooling water tank, demolding device, and upper and lower mold support devices are evenly distributed around the transfer drive device. Each vulcanizing tank, cooling water tank, demolding device, and upper and lower mold support device corresponds to one mold gripping device and is located directly below the corresponding mold gripping device. The transfer drive device drives the four mold gripping devices to rotate intermittently at equal 90-degree angles around the transfer drive device. Each mold gripping device includes a mold gripping frame, a gripping mechanism vertically movable on the mold gripping frame, and a mold lifting mechanism for driving the gripping mechanism to move vertically. The gripping mechanism is used to grip the synchronous belt mold.

[0008] By adopting the above technical solution, the timing belt mold with rubber sheet wound around it is placed on the upper and lower mold support equipment. Then, the mold lifting mechanism of the mold gripping device located directly above the upper and lower mold support equipment drives the gripping mechanism to descend and grip the timing belt mold. Then, the mold lifting mechanism drives the timing belt mold to rise through the gripping mechanism. Next, the transfer drive device drives the mold gripping device and the timing belt mold to rotate intermittently by 90 degrees until they return to the upper and lower mold support equipment. During this process, the rubber sheet on the timing belt mold goes through vulcanization, cooling and demolding in sequence to become a timing belt semi-finished product. No manual intervention is required in this process, the mold is easy to transfer, and the high temperature after vulcanization can be avoided from accidentally injuring the workers, thus improving safety.

[0009] Optionally, the mold gripping frame includes a circular plate-shaped mold support plate; the vulcanizing tank and the cooling water tank have the same structure; a limiting slot is formed on the lower end surface of the mold support plate for vertical insertion of the upper end of the vulcanizing tank or the upper end of the cooling water tank; the transfer drive device includes a central drive mechanism; the central drive mechanism includes a central drive seat, a central lifting seat that is lifted and lowered on the upper end of the central drive seat, and a central lifting assembly for driving the central lifting seat to move vertically; the central lifting seat is used to drive the four mold support plates to rotate intermittently at equal angles of ninety degrees.

[0010] By adopting the above technical solution, during vulcanization and cooling, the mold support plate of the central lifting component is lowered so that the limiting slot of the mold support plate is fitted from top to bottom onto the upper end of the vulcanizing tank or the upper end of the cooling water tank. This improves the sealing of vulcanization and cooling, thereby improving the efficiency of vulcanization and preventing the cooling water from splashing out accidentally during cooling.

[0011] Optionally, the gripping mechanism includes a gripping support base; the mold lifting mechanism is used to drive the gripping support base to move vertically; the mold support plate is formed with a central insertion hole for the gripping support base to be inserted from top to bottom; when the gripping support base is inserted into the central insertion hole, the central insertion hole is closed.

[0012] By adopting the above technical solution, the vulcanization and cooling sealing performance during operation is improved.

[0013] Optionally, the gripping mechanism further includes a gripping assembly disposed on the gripping support; the gripping assembly includes a gripping drive and a gripping actuator; cylindrical connecting shafts are respectively formed at the upper and lower ends of the synchronous belt mold; the gripping actuator includes a plurality of circumferentially evenly distributed gripping center rods and an eccentric wheel fixed to the lower end of the gripping center rods; the gripping center rods pass vertically through and are rotatably connected to the gripping support; the eccentric wheel is located on the lower side of the gripping support; the gripping drive is used to drive all the gripping center rods to rotate synchronously.

[0014] By adopting the above technical solution, the gripping mechanism moves from top to bottom, causing the connecting shaft of the synchronous belt mold to be inserted between all the eccentric wheels. Then, the gripping drive drives all the gripping center rods to rotate synchronously, that is, all the eccentric wheels rotate synchronously. In this way, the connecting shaft is clamped by the combined action of all the eccentric wheels, thereby enabling the gripping mechanism to grasp the synchronous belt mold.

[0015] Optionally, the bottom of the gripping support is formed with a cylindrical groove-shaped connecting shaft slot for the connecting shaft to be vertically inserted from bottom to top; the eccentric wheels are evenly distributed around the rotation center axis of the connecting shaft slot.

[0016] By adopting the above technical solution, the connecting shaft of the synchronous belt mold is inserted into the connecting shaft slot while the eccentric wheel rotates, so that the position of the connecting shaft is fixed, which is beneficial for the subsequent rotation of the eccentric wheel to clamp the connecting shaft.

[0017] Optionally, an auxiliary support rod is vertically inserted through one end of the mold support plate near the central drive seat; the auxiliary support rod includes a support rod body and a caster wheel fixed to the lower end of the support rod body; the transfer drive device also includes an annular support bottom ring; the support rod body is circumferentially slidably disposed on the support bottom ring.

[0018] By adopting the above technical solution, when the mold support plate rotates, the auxiliary support rod on the mold support plate slides circumferentially on the support bottom ring, while the universal wheels roll on the ground. This makes the position of the mold support plate more stable, which is conducive to the accuracy of transfer.

[0019] Optionally, the demolding device includes a demolding support frame, a synchronous belt upper limit device, a synchronous belt lower limit device, and a vertical ejector device; a pair of side support plates are formed on the upper surface of the demolding support frame for the synchronous belt mold to pass horizontally through; the synchronous belt upper limit device and the synchronous belt lower limit device are both disposed on the pair of side support plates, and the synchronous belt upper limit device is located above the synchronous belt lower limit device; the synchronous belt upper limit device is used to restrict the synchronous belt from moving upward; the synchronous belt lower limit device is used to restrict the synchronous belt from moving downward; the synchronous belt mold includes a cylindrical mold body; a plurality of circumferentially evenly distributed toothed grooves are formed on the cylindrical surface of the mold body; the vertical ejector device includes an ejector base and an ejector drive mechanism for driving the ejector base to move vertically; the ejector base includes a cylindrical ejector ring; the outer cylindrical surface of the ejector ring has the same shape as the outer cylindrical surface of the mold body.

[0020] By adopting the above technical solution, during demolding, the upper limit device and the lower limit device of the synchronous belt restrict the up and down movement of the semi-finished synchronous belt. Then, the top mold ring column abuts against the lower end face of the mold body and both move upward synchronously. In this way, the semi-finished synchronous belt separates from the mold body and is fitted onto the top mold ring column. Then, the top mold ring column moves down to its original position, thus completing the demolding of the semi-finished synchronous belt. During this process, the semi-finished synchronous belt is not easily deformed, and the shape of the transmission teeth is not damaged, thus improving the quality of the semi-finished synchronous belt.

[0021] Optionally, the upper limit device and the lower limit device of the synchronous belt have the same structure; the upper limit device of the synchronous belt includes a pair of upper limit mechanisms; the upper limit mechanism of the synchronous belt corresponds one-to-one with the side support plate; the upper limit mechanism of the synchronous belt includes a horizontally movable upper limit block of the synchronous belt and a horizontally moving drive component for driving the upper limit block of the synchronous belt; a semi-cylindrical groove-shaped limiting slot is formed on the end face of the pair of upper limit blocks that are close to each other; the limiting slot is open at the top and bottom; the diameter of the limiting slot is the same as the diameter of the mold body.

[0022] By adopting the above technical solution, during operation, a pair of horizontal moving drive components drive a pair of synchronous belt upper limit blocks to approach each other. In this way, the synchronous belt mold is located in the limit slots of a pair of side support plates and simultaneously contacts the outer cylindrical surface of the synchronous belt mold, thereby effectively preventing the synchronous belt semi-finished product from moving with the synchronous belt mold and completing demolding.

[0023] Optionally, the top mold base further includes a top mold rotation assembly; the top mold rotation assembly includes a top mold inner support fixed to the upper inner end of the top mold ring column and a top mold rotation drive for driving the top mold inner support to rotate; a pair of alignment rods are vertically and elastically telescopically arranged on the top mold inner support; a pair of alignment slots for vertical insertion of the alignment rods are respectively formed on the two axial end faces of the mold body; a pressure switch is provided at the bottom of the alignment rod; the pressure switch controls the top mold rotation drive to stop working; when the upper end of the alignment rod is inserted into the corresponding side of the alignment slot, the top mold inner support applies pressure to the pressure switch, and the toothed grooves of the mold body and the top mold ring column are completely aligned.

[0024] By adopting the above technical solution, the top mold rotation drive drives the top mold inner support to rotate. During this process, a pair of alignment rods will be inserted into the corresponding side alignment slots. In this way, the top mold inner support applies pressure to the pressure switch, and the pressure switch controls the top mold rotation drive to stop working. At this time, the toothed grooves of the mold body and the top mold ring are completely aligned, which facilitates the alignment of the mold body and the top mold ring.

[0025] Optionally, the upper and lower mold support device includes a support worktable and a mold support base fixed on the support worktable; the mold support base is formed with a vertical retaining slot for the lower end of the timing belt mold from top to bottom; when the lower end of the timing belt mold is inserted into the vertical retaining slot, the timing belt mold is vertically positioned.

[0026] By adopting the above technical solution, when the upper mold is used, the lower end of the timing belt mold with the rubber sheet wrapped around it is inserted into the vertical retaining slot. At this time, the timing belt mold is set vertically, which is convenient for the subsequent gripping mechanism to grip. When the lower mold is used, the lower end of the timing belt mold is inserted into the vertical retaining slot, and then the gripping mechanism releases the timing belt mold. This is beneficial for loading and unloading the mold.

[0027] In summary, the beneficial effects of this application are as follows:

[0028] 1. No manual intervention is required, and mold transfer is convenient.

[0029] 2. This prevents workers from being accidentally injured by the high temperatures after vulcanization, thus improving safety. Attached Figure Description

[0030] Figure 1 This is a cross-sectional structural diagram of this application.

[0031] Figure 2 This is a top view of the structure of this application.

[0032] Figure 3 This is a cross-sectional structural schematic diagram of the synchronous belt mold 80 of this application.

[0033] Figure 4 This is a top view of the synchronous belt mold 80 of this application.

[0034] Figure 5 This is a cross-sectional structural schematic diagram of the transfer device 10 of this application.

[0035] Figure 6 This is a cross-sectional structural schematic diagram of the central drive mechanism 21 of this application.

[0036] Figure 7 This is a cross-sectional structural schematic diagram of the mold gripping device 30 of this application.

[0037] Figure 8 This is a top view structural schematic diagram of the four eccentric wheels 373 of this application.

[0038] Figure 9 This application is Figure 5 A magnified structural diagram of part A in the diagram.

[0039] Figure 10This is a top view of the vulcanizing tank 40, cooling water tank 50, demolding equipment 60, and upper and lower mold support equipment 70 of this application.

[0040] Figure 11 This is a cross-sectional structural schematic diagram of the demolding device 60 of this application.

[0041] Figure 12 This application is Figure 11 A magnified schematic diagram of part B in the diagram.

[0042] Explanation of reference numerals in the attached figures:

[0043] 10. Transferring equipment;

[0044] 20. Transfer drive device; 21. Central drive mechanism; 211. Central drive seat; 2111. Support base plate; 2112. Lower vertical support rod; 2113. Support middle plate; 2114. Upper vertical support rod; 2115. Support top plate; 212. Vertical guide rod; 213. Central lifting electric cylinder; 214. Lifting lower support plate; 215. Central rotating motor; 216. Rotating center plate; 217. Side support seat; 2171. Horizontal connecting rod; 2172. Connecting support plate; 2173. Vertical connecting rod; 22. Support bottom ring; 221. Outer support ring; 2211. Outer support foot; 222. Inner support ring; 2221. Inner support foot;

[0045] 30. Mold gripping device; 31. Mold support plate; 310. Limiting slot; 311. Lower center through hole; 312. Upper center through hole; 32. Mold upper support frame; 321. Mold upper support rod; 322. Mold upper support plate; 3220. Upper clearance hole; 33. Mold lifting mechanism; 331. Mold lifting motor; 332. Mold lifting threaded rod; 34. Gripping support base; 341. Gripping lower plate; 3410. Connecting shaft slot; 42. Upper gripper plate; 35. Drive frame; 351. Drive connecting rod; 352. Upper drive plate; 36. Gripper drive component; 361. Gripper drive motor; 362. Gripper center gear; 37. Gripper actuator; 371. Gripper center rod; 372. Gripper upper gear; 373. Eccentric wheel; 38. Auxiliary support rod; 381. Support main rod; 382. Upper stop plate; 383. Lower support plate; 384. Caster wheel; 385. Steel ball;

[0046] 40. Vulcanizing tank;

[0047] 50. Cooling water tank;

[0048] 60. Demolding equipment; 61. Demolding support frame; 611. Lower demolding support plate; 612. Demolding support rod; 613. Upper demolding support plate; 6130. Lifting clearance hole; 62. Side support plate; 63. Synchronous belt upper limit device; 631. Horizontal movement drive cylinder; 632. Synchronous belt upper limit block; 6320. Limit slot; 64. Top mold drive cylinder; 641. Top mold drive plate; 65. Top mold rotation drive motor; 66. Top mold base; 661. Top mold ring column; 662. Top mold inner support base; 6620. Top mold limit slot; 6621. Vertical through hole; 6622. Spring mounting groove; 663. Tension spring; 664. Alignment rod; 6641. Alignment main rod; 6642. Alignment lower stop plate; 67. Lower limit device of synchronous belt;

[0049] 70. Upper and lower mold support equipment; 71. Support workbench; 72. Mold support base; 720. Vertical retaining slot;

[0050] 80. Synchronous belt mold; 81. Mold body; 810. Alignment slot; 82. Connecting shaft. Detailed Implementation

[0051] The following is in conjunction with the appendix Figure 1-12 This application will be described in further detail.

[0052] This application discloses a synchronous belt vulcanization demolding system, with reference to Figure 1 , Figure 2 and Figure 10 The system includes a vulcanizing tank 40, a cooling water tank 50, a demolding device 60, upper and lower mold support devices 70, and a transfer device 10. The vulcanizing tank 40 is used for vulcanizing rubber sheets. The cooling water tank 50 is used for cooling the vulcanized synchronous belt semi-finished product. The vulcanizing tank 40 and the cooling water tank 50 have the same structure. The demolding device 60 is used to separate the cooled synchronous belt semi-finished product from the synchronous belt mold 80. The upper and lower mold support devices 70 are used to support the synchronous belt mold 80 and keep the synchronous belt mold 80 in a vertical state. The transfer device 10 transfers the synchronous belt mold 80 from the upper and lower mold support devices 70 to the vulcanizing tank 40, the cooling water tank 50, and the demolding device 60 in sequence, and finally back to the upper and lower mold support devices 70.

[0053] refer to Figure 1 and Figure 2 The transfer device 10 includes a transfer drive device 20 and four mold gripping devices 30 evenly distributed around the transfer drive device 20; the vulcanizing tank 40, cooling water tank 50, demolding device 60 and upper and lower mold support device 70 are evenly distributed around the transfer drive device 20; each of the vulcanizing tank 40, cooling water tank 50, demolding device 60 and upper and lower mold support device 70 corresponds to one mold gripping device 30.

[0054] refer to Figure 3 and Figure 4 The synchronous belt mold 80 includes a cylindrical mold body 81; a number of evenly distributed toothed grooves are formed on the cylindrical surface of the mold body 81; a coaxial cylindrical connecting shaft 82 is formed on the two axial end faces of the mold body 81; and a pair of alignment slots 810 are formed on the two axial end faces of the mold body 81.

[0055] refer to Figure 5 and Figure 6 The transfer drive device 20 includes a central drive mechanism 21; the central drive mechanism 21 includes a central drive seat 211, a central lifting seat that is raised and lowered on the upper end of the central drive seat 211, and a central lifting assembly for driving the central lifting seat to move vertically.

[0056] refer to Figure 6 The central drive base 211 includes a support base plate 2111, a support middle plate 2113, and a support top plate 2115 distributed from bottom to top; the support base plate 2111, the support middle plate 2113, and the support top plate 2115 are all circular plates and their rotational central axes are collinear; a number of lower vertical support rods 2112 are formed between the support base plate 2111 and the support middle plate 2113; a number of upper vertical support rods 2114 are formed between the support middle plate 2113 and the support top plate 2115; and a number of vertical guide rods 212 are formed on the upper surface of the support top plate 2115.

[0057] refer to Figure 6 The central lifting seat includes a lower lifting support plate 214, a central rotating motor 215 fixed on the lower lifting support plate 214, a circular plate-shaped rotating center plate 216 fixed on the upper end of the output shaft of the central rotating motor 215, and four side support seats 217 evenly distributed around the rotation center axis of the rotating center plate 216. The central rotating motor 215 rotates intermittently at equal angles of ninety degrees. The rotation center axes of the rotating center plate 216, the lower lifting support plate 214, and the central rotating motor 215 are collinear. The rotation center axes of the lower lifting support plate 214 and the supporting top plate 2115 are collinear.

[0058] refer to Figure 6 The lower support plate 214 is vertically mounted on the vertical guide rod 212; the central lifting assembly includes a central lifting electric cylinder 213; the lower support plate 214 is fixed to the upper end of the piston rod of the central lifting electric cylinder 213.

[0059] refer to Figure 6The side support 217 includes a pair of horizontal connecting rods 2171 fixed on the cylindrical surface of the rotation center plate 216, a connecting support plate 2172 fixed on one end of the pair of horizontal connecting rods 2171 away from the rotation center plate 216, and a vertical connecting rod 2173 fixed on the lower end surface of the connecting support plate 2172.

[0060] refer to Figure 7 The mold gripping device 30 includes a mold gripping frame, a gripping mechanism vertically movable on the mold gripping frame, and a mold lifting mechanism 33 for driving the gripping mechanism to move vertically.

[0061] refer to Figure 7 The mold gripper includes a circular plate-shaped mold support plate 31 and an upper mold support frame 32; the mold support plate 31 is fixed to the lower end of a pair of vertical connecting rods 2173 on the corresponding side; a limiting slot 310 is formed on the lower end surface of the mold support plate 31 for vertical insertion of the upper end of the vulcanizing tank 40 or the upper end of the cooling water tank 50; the upper mold support frame 32 includes a pair of upper mold support rods 321 fixed to the upper end surface of the mold support plate 31 and a circular plate-shaped upper mold support plate 322 fixed to the upper end of the pair of upper mold support rods 321; the pair of upper mold support rods 321 are evenly distributed around the rotation center axis of the mold support plate 31; the upper mold support plate 322 is coaxially arranged with the mold support plate 31.

[0062] refer to Figure 7 The gripping mechanism includes a gripping support base 34 and gripping components mounted on the gripping support base 34. The gripping support base 34 consists of a circular upper gripping plate 342 and a circular lower gripping plate 341. The rotation axes of the upper gripping plate 342, the lower gripping plate 341, and the mold support plate 31 are collinear. The upper gripping plate 342 is located above the lower gripping plate 341, and the diameter of the upper gripping plate 342 is larger than the diameter of the lower gripping plate 341. The mold support plate 31 has a central insertion hole formed on it for the gripping support base 34 to be inserted from top to bottom. The central insertion hole consists of an upper central through hole 312 that mates with the upper gripping plate 342 and a lower central through hole 311 that mates with the lower gripping plate 341.

[0063] refer to Figure 7 The mold lifting mechanism 33 includes a pair of mold lifting components; the mold lifting components include a mold lifting motor 331 and a mold lifting threaded rod 332; the upper end of the mold lifting threaded rod 332 is rotatably connected to the upper support plate 322 of the mold, and the lower end is rotatably connected to the lower side wall of the upper central through hole 312; the mold lifting motor 331 is fixed on the upper end surface of the upper support plate 322 of the mold; the upper end of the mold lifting threaded rod 332 is fixedly connected to the output shaft of the mold lifting motor 331; the gripping upper plate 342 is screwed onto the pair of mold lifting threaded rods 332.

[0064] refer to Figure 7 and Figure 8 The gripping assembly includes a gripping drive component 36 and a gripping actuator 37; a drive frame 35 is provided on the upper end surface of the gripping upper plate 342; the drive frame 35 includes a circular plate-shaped drive upper plate 352 and a plurality of drive connecting rods 351 uniformly formed on the lower end surface of the drive upper plate 352; an upper clearance hole 3220 for the drive frame 35 to pass vertically through is formed on the upper support plate 322 of the mold; the drive connecting rods 351 are formed on the upper end surface of the gripping upper plate 342; the rotation center axes of the drive upper plate 352 and the gripping upper plate 342 are collinear; the gripping drive component 36 includes a fixed... The gripping drive motor 361 is fixed on the upper surface of the drive plate 352, and the gripping center gear 362 is fixed on the lower end of the output shaft of the gripping drive motor 361. The gripping actuator 37 includes four gripping center rods 371 evenly distributed around the circumference. An eccentric wheel 373 is fixed at the lower end of the gripping center rod 371, and a gripping upper gear 372 is fixed at the upper end. The gripping center rod 371 passes vertically through and is rotatably connected to the gripping support base 34. The eccentric wheel 373 is located on the lower side of the gripping support base 34. The four gripping upper gears 372 mesh with the gripping center gears 362 respectively.

[0065] refer to Figure 7 and Figure 9 An auxiliary support rod 38 is vertically inserted through one end of the mold support plate 31 near the central drive seat 211. The auxiliary support rod 38 includes a support rod body and a caster wheel 384. The support rod body includes a cylindrical support main rod 381. The support main rod 381 vertically passes through the mold support plate 31 and has an upper stop plate 382 fixed at its upper end and a lower support plate 383 fixed at its lower end. The caster wheel 384 is fixed to the lower end of the lower support plate 383. The transfer drive device 20 also includes an annular support bottom ring 22. The support bottom ring 22 includes an annular inner support ring 222 and an annular outer support ring 221. The rotation center axes of the outer support ring 221, the inner support ring 222, and the support bottom plate 2111 are collinear. The supporting base plate 2111 is located inside the inner supporting ring 222; the inner supporting ring 222 is located inside the outer supporting ring 221; several inner supporting feet 2221 are formed on the bottom surface of the inner supporting ring 222; several outer supporting feet 2211 are formed on the bottom surface of the outer supporting ring 221; the inner supporting ring 222 and the outer supporting ring 221 are at the same level and a circular groove-shaped gap is provided between them for the main support rod 381 to slide; the caster wheel 384 is grounded; several steel balls 385 are embedded on the upper end surface of the lower supporting plate 383; both the inner supporting ring 222 and the outer supporting ring 221 have coaxially arranged upper sliding grooves for the upper ends of the steel balls 385 to slide on.

[0066] refer to Figures 10-12The demolding device 60 includes a demolding support frame 61, a synchronous belt upper limit device 63, a synchronous belt lower limit device 67, and a vertical ejector device. The demolding support frame 61 includes a circular plate-shaped upper demolding support plate 613 and a circular plate-shaped lower demolding support plate 611. The upper demolding support plate 613 is located directly above the lower demolding support plate 611, and their rotation center axes are collinear. A plurality of circumferentially evenly distributed demolding support rods 612 are formed between the upper demolding support plate 613 and the lower demolding support plate 611. A pair of side support plates 62 for the synchronous belt mold 80 to pass horizontally are formed on the upper end surface of the demolding support frame 61. The synchronous belt upper limit device 63 and the synchronous belt lower limit device 67 are both arranged on the pair of side support plates 62, and the synchronous belt upper limit device 63 is located above the synchronous belt lower limit device 67. The synchronous belt upper limit device 63 is used to restrict the synchronous belt from moving upward. The synchronous belt lower limit device 67 is used to restrict the synchronous belt from moving downward.

[0067] refer to Figure 10 and Figure 11 The upper limit device 63 and the lower limit device 67 of the synchronous belt have the same structure. The upper limit device 63 of the synchronous belt includes a pair of upper limit mechanisms of the synchronous belt. The upper limit mechanisms of the synchronous belt correspond one-to-one with the side support plate 62. The upper limit mechanism of the synchronous belt includes a horizontally movable upper limit block 632 of the synchronous belt and a horizontal movement drive assembly for driving the upper limit block 632 of the synchronous belt. The horizontal movement drive assembly includes a horizontal movement drive electric cylinder 631. The upper limit block 632 of the synchronous belt is fixed on the piston rod of the horizontal movement drive electric cylinder 631. The end faces of the pair of upper limit blocks 632 of the synchronous belt are respectively formed with semi-cylindrical groove-shaped limit slots 6320. The limit slots 6320 are open at the top and bottom. The diameter of the limit slots 6320 is the same as the diameter of the mold body 81.

[0068] refer to Figure 11 and Figure 12The vertical ejector device includes an ejector base 66 and an ejector drive mechanism for driving the ejector base 66 to move vertically; the ejector base 66 includes an annular cylindrical ejector ring 661 and an ejector rotation assembly; the outer cylindrical surface of the ejector ring 661 has the same shape as the outer cylindrical surface of the mold body 81; the upper demolding support plate 613 is formed with a lifting clearance hole 6130 for the vertical movement of the ejector ring 661; the ejector drive mechanism includes an ejector drive electric cylinder 64 fixed to the upper end face of the lower demolding support plate 611; the upper end of the piston rod of the ejector drive electric cylinder 64... A top mold drive plate 641 is fixed; the top mold rotation assembly includes a top mold inner support 662 fixed to the upper end of the top mold ring column 661 and a top mold rotation drive component for driving the top mold inner support 662 to rotate; the top mold rotation drive component includes a top mold rotation drive motor 65 fixed to the upper end surface of the top mold drive plate 641; the top mold inner support 662 is fixed to the upper end of the output shaft of the top mold rotation drive motor 65; a top mold limiting slot 6620 is formed on the upper end surface of the top mold inner support 662 for the connecting shaft 82 to be vertically inserted from top to bottom.

[0069] refer to Figure 11 and Figure 12 The top mold inner support base 662 is provided with a pair of alignment rods 664; the top mold inner support base 662 is formed with a pair of evenly distributed vertical through holes 6621; the bottom of the top mold inner support base 662 is formed with a pair of annular groove-shaped spring mounting slots 6622; the spring mounting slots 6622 correspond one-to-one with the vertical through holes 6621; the spring mounting slots 6622 and the corresponding vertical through holes 6621 are coaxially arranged and interconnected; the alignment rods 664 include cylindrical alignment main rods 6641 that mate with the vertical through holes 6621 and a lower end fixed to the alignment main rods 6641. Alignment lower stop plate 6642; alignment main rod 6641 corresponds one-to-one with alignment slot 810; tension spring 663 is sleeved on alignment main rod 6641; upper end of tension spring 663 is fixed on the upper side wall of spring mounting groove 6622, and lower end is fixed on alignment lower stop plate 6642; pressure switch 665 is installed on the upper end surface of alignment lower stop plate 6642; pressure switch 665 controls the top mold rotation drive motor 65 to stop working; when the upper end of alignment main rod 6641 is inserted into the corresponding side alignment slot 810, the support seat 662 inside the top mold applies pressure to pressure switch 665.

[0070] refer to Figure 10 The upper and lower mold support device 70 includes a support worktable 71 and a mold support base 72 fixed on the support worktable 71; the mold support base 72 is formed with a vertical retaining slot 720 for the connecting shaft 82 on the lower side to run from top to bottom; when the lower end of the timing belt mold 80 is inserted into the vertical retaining slot 720, the timing belt mold 80 is set vertically.

[0071] Working principle of a synchronous belt vulcanization demolding system:

[0072] First, the timing belt mold 80 with rubber sheet wound around it is placed on the upper and lower mold support device 70, so that the connecting shaft 82 on the lower side of the timing belt mold 80 is inserted into the vertical retaining slot 720 from top to bottom. Then, the mold support plate 31 on the upper side of the upper and lower mold support device 70 is lowered, and then the gripping support seat 34 is lowered, so that the connecting shaft 82 on the upper side of the timing belt mold 80 is positioned between the four eccentric wheels 373. Then, the four eccentric wheels 373 rotate synchronously to clamp the connecting shaft 82 on the upper side of the timing belt mold 80. Then, the gripping support seat 34 is raised, and then the mold support plate 31 is raised. Then, the central rotation motor 215 drives the mold gripping device 30 and the timing belt mold 80 to rotate 90 degrees clockwise. Then, the mold support plate 31 is lowered, so that the sulfur... The upper end of the vulcanizing tank 40 is inserted into the limiting slot 310. Then, the gripping support 34 descends, allowing the synchronous belt mold 80 to enter the vulcanizing tank 40. Vulcanization then takes place in the vulcanizing tank 40. After vulcanization, the gripping support 34 rises, and then the mold support plate 31 rises. Next, the central rotation motor 215 drives the mold gripping device 30 and the synchronous belt mold 80 to rotate 90 degrees clockwise. Then, the mold support plate 31 descends, allowing the upper end of the cooling water tank 50 to insert into the limiting slot 310. Then, the gripping support 34 descends, allowing the synchronous belt mold 80 to enter the cooling water tank 50. This allows the synchronous belt mold 80 and the synchronous belt semi-finished product to cool. Then, the gripping support 34 rises, and then the mold support plate 31 rises. Next, the central rotation motor 215 drives the mold gripping device 30 and the synchronous belt mold 80 to rotate 90 degrees clockwise. The rotating motor 215 drives the mold gripping device 30 and the synchronous belt mold 80 to rotate 90 degrees clockwise. Then, the mold support plate 31 and the gripping support seat 34 descend. The two pairs of synchronous belt upper limit blocks 632 then move closer together, placing the semi-finished synchronous belt between them. The top mold rotation drive motor 65 then drives the top mold inner support seat 662 to rotate until the upper ends of a pair of alignment main rods 6641 are inserted into the alignment slots 810. At this point, the toothed grooves of the mold body 81 and the top mold ring column 661 are completely aligned. Next, the top mold drive cylinder 64 drives the top mold ring column 661 to rise, while the gripping support seat 34 drives the synchronous belt mold 80 to rise. During this process, the upper pair of synchronous belt upper limit blocks... This causes the semi-finished synchronous belt to detach from the synchronous belt mold 80, and the top mold ring column 661 to insert into the semi-finished synchronous belt. Then, the top mold drive cylinder 64 drives the top mold ring column 661 to descend, thus completing the demolding of the semi-finished synchronous belt. The semi-finished synchronous belt can then be manually removed. Next, the mold support plate 31 rises, and then the central rotation motor 215 drives the mold gripping device 30 and the synchronous belt mold 80 to rotate 90 degrees clockwise. Then, the mold support plate 31 descends, and the gripping support seat 34 descends, causing the connecting shaft 82 of the synchronous belt mold 80 to be inserted into the vertical holding slot 720 from top to bottom. The four eccentric wheels 373 rotate synchronously to release the connecting shaft 82 on the upper side of the synchronous belt mold 80. Then, the gripping support seat 34 rises, and then the mold support plate 31 rises.Finally, the timing belt mold 80, wrapped with rubber sheets, is manually placed on the upper and lower mold support equipment 70.

[0073] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vulcanization and demolding system for synchronous belts, characterized in that: The system includes a vulcanizing tank (40), a cooling water tank (50), a demolding device (60), upper and lower mold support devices (70), and a transfer device (10); the upper and lower mold support devices (70) are used to support the synchronous belt mold (80) and keep the synchronous belt mold (80) vertical; the transfer device (10) includes a transfer drive device (20) and four mold gripping devices (30) evenly distributed around the transfer drive device (20); the vulcanizing tank (40), the cooling water tank (50), the demolding device (60), and the upper and lower mold support devices (70) are ...60), the cooling water tank (50), the demolding device (60), the upper and lower mold support devices (70) are evenly distributed around the transfer drive device (20); the vulcanizing tank (60), the cooling water tank (50), the demolding device (60), the upper and lower mold support devices (70) are evenly distributed around the transfer drive device (20); the vulcanizing tank (60), the cooling water tank (50), the demolding device (60), the upper and lower mold support devices (70) are evenly distributed around the transfer drive device (20); the vulcanizing tank (60), the cooling water tank (50), the demolding device (60), the upper The tank (40), the cooling water tank (50), the demolding device (60), and the upper and lower mold support device (70) each correspond to one of the mold gripping devices (30) and are all located directly below the mold gripping device (30) on the corresponding side; the transfer drive device (20) drives the four mold gripping devices (30) to rotate intermittently at equal angles of ninety degrees around the transfer drive device (20); the mold gripping device (30) includes a mold gripping frame, a gripping mechanism vertically movable on the mold gripping frame, and a mold lifting mechanism (33) for driving the gripping mechanism to move vertically; the gripping mechanism is used to grip the synchronous belt mold (80); The mold gripping frame includes a circular plate-shaped mold support plate (31); the vulcanizing tank (40) and the cooling water tank (50) have the same structure; the lower end surface of the mold support plate (31) is formed with a limiting slot (310) for vertical insertion of the upper end of the vulcanizing tank (40) or the upper end of the cooling water tank (50); the transfer drive device (20) includes a central drive mechanism (21); the central drive mechanism (21) includes a central drive seat (211), a central lifting seat that is lifted and lowered on the upper end of the central drive seat (211), and a central lifting assembly for driving the central lifting seat to move vertically; the central lifting seat is used to drive the four mold support plates (31) to rotate intermittently at ninety-degree equal angles; An auxiliary support rod (38) is vertically inserted through one end of the mold support plate (31) near the central drive seat (211); the auxiliary support rod (38) includes a support rod body and a universal wheel (384) fixed to the lower end of the support rod body; the transfer drive device (20) also includes an annular support bottom ring (22); the support rod body is circumferentially slidably disposed on the support bottom ring (22).

2. The vulcanization demolding system for a synchronous belt according to claim 1, characterized in that: The gripping mechanism includes a gripping support base (34); the mold lifting mechanism (33) is used to drive the gripping support base (34) to move vertically; the mold support plate (31) has a central insertion hole formed on it for the gripping support base (34) to be inserted from top to bottom; when the gripping support base (34) is inserted into the central insertion hole, the central insertion hole is closed.

3. The vulcanization and demolding system for a synchronous belt according to claim 2, characterized in that: The gripping mechanism further includes a gripping assembly mounted on the gripping support (34); the gripping assembly includes a gripping drive (36) and a gripping actuator (37); the upper and lower ends of the synchronous belt mold (80) are respectively formed with cylindrical connecting shafts (82); the gripping actuator (37) includes several gripping center rods (371) evenly distributed around the circumference and an eccentric wheel (373) fixed at the lower end of the gripping center rods (371); the gripping center rods (371) pass vertically through and are rotatably connected to the gripping support (34); the eccentric wheel (373) is located on the lower side of the gripping support (34); the gripping drive (36) is used to drive all the gripping center rods (371) to rotate synchronously.

4. The vulcanization and demolding system for a synchronous belt according to claim 3, characterized in that: The bottom of the gripping support (34) is formed with a cylindrical groove-shaped connecting shaft slot (3410) for the connecting shaft (82) to be vertically inserted from bottom to top; the eccentric wheel (373) is evenly distributed around the rotation center axis of the connecting shaft slot (3410).

5. The vulcanization demolding system for a synchronous belt according to claim 1, characterized in that: The demolding device (60) includes a demolding support frame (61), a synchronous belt upper limit device (63), a synchronous belt lower limit device (67), and a vertical ejector device; a pair of side support plates (62) are formed on the upper surface of the demolding support frame (61) for the synchronous belt mold (80) to pass horizontally through; the synchronous belt upper limit device (63) and the synchronous belt lower limit device (67) are both mounted on the pair of side support plates (62), and the synchronous belt upper limit device (63) is located above the synchronous belt lower limit device (67); the synchronous belt upper limit device (63) is used for The synchronous belt is restricted from moving upward; the lower limit device (67) of the synchronous belt is used to restrict the synchronous belt from moving downward; the synchronous belt mold (80) includes a cylindrical mold body (81); the cylindrical surface of the mold body (81) is formed with a number of circumferentially evenly distributed toothed grooves; the vertical top mold device includes a top mold base (66) and a top mold driving mechanism for driving the top mold base (66) to move vertically; the top mold base (66) includes a cylindrical top mold ring (661); the outer cylindrical surface of the top mold ring (661) has the same shape as the outer cylindrical surface of the mold body (81).

6. The vulcanization demolding system for a synchronous belt according to claim 5, characterized in that: The upper limit device (63) and the lower limit device (67) of the synchronous belt have the same structure; the upper limit device (63) of the synchronous belt includes a pair of upper limit mechanisms of the synchronous belt; the upper limit mechanism of the synchronous belt corresponds one-to-one with the side support plate (62); the upper limit mechanism of the synchronous belt includes a horizontally movable upper limit block (632) of the synchronous belt and a horizontally movable drive component for driving the upper limit block (632); a semi-cylindrical groove-shaped limiting slot (6320) is formed on the end face of the pair of upper limit blocks (632) that are close to each other; the semi-cylindrical groove-shaped limiting slot (6320) is open at the top and bottom; the diameter of the semi-cylindrical groove-shaped limiting slot (6320) is the same as the diameter of the mold body (81).

7. The vulcanization demolding system for a synchronous belt according to claim 5, characterized in that: The top mold base (66) also includes a top mold rotation assembly; the top mold rotation assembly includes a top mold inner support base (662) fixed to the upper inner end of the top mold ring column (661) and a top mold rotation drive for driving the top mold inner support base (662) to rotate; a pair of alignment rods (664) are vertically and elastically telescopically arranged on the top mold inner support base (662); a pair of alignment slots (810) for vertical insertion of the alignment rods (664) are respectively formed on the two axial end faces of the mold body (81); a pressure switch (665) is provided at the bottom of the alignment rod (664); the pressure switch (665) controls the top mold rotation drive to stop working; when the upper end of the alignment rod (664) is inserted into the corresponding side of the alignment slot (810), the top mold inner support base (662) applies pressure to the pressure switch (665), and the toothed grooves of the mold body (81) and the top mold ring column (661) are completely aligned.

8. The vulcanization and demolding system for a synchronous belt according to claim 1, characterized in that: The upper and lower mold support device (70) includes a support workbench (71) and a mold support base (72) fixed on the support workbench (71); the mold support base (72) is formed with a vertical retaining slot (720) for the lower end of the synchronous belt mold (80) to be held from top to bottom; when the lower end of the synchronous belt mold (80) is inserted into the vertical retaining slot (720), the synchronous belt mold (80) is vertically set.

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