Glue injection vulcanizing device of metal rubber composite damper spring

Abstract

The invention relates to the technical field of vulcanized product manufacturing devices, in particular to a rubber injection vulcanizing device of a metal rubber composite damper spring, which comprises an upper mold assembly, a lower mold assembly and a petal mold assembly located between the upper mold assembly and the lower mold assembly, a rubber injection runner is arranged on the upper mold assembly, and the lower mold assembly comprises a demolding unit and a mold filling unit. The outer end of the petal mold assembly is connected with an opening and closing mold assembly, opening and closing of the petal mold assembly are controlled by the opening and closing mold assembly, a limiting unit is arranged on the petal mold assembly, the petal mold assembly comprises a plurality of petal mold sets which are assembled in an opposite mode, each petal mold set comprises petal mold bodies which are symmetrically arranged in a matched mode, and keys are arranged at the ends of the petal mold bodies. The die opening and closing assembly comprises a groove plate connected with the keys in a sliding mode, and the petal die bodies in the petal die sets are opened or closed through vertical movement of the groove plate. According to the invention, automatic separation of the petal mold and the product, automatic opening and closing of the petal mold and automatic mold filling of the product can be realized, the heat loss of the mold is small, and the process stability is good.

Description

Technical Field

[0001] The invention relates to the technical field of vulcanized product manufacturing devices, in particular to a glue injection vulcanization device for a metal-rubber composite damping spring. Background Art

[0002] Metal-rubber composite damping springs are usually made of metal and rubber vulcanized, and are key components for rail vehicle vibration reduction. Glue injection is required during the production of metal-rubber composite damping springs. The vulcanization mold is an indispensable key device in the production of metal-rubber composite damping springs. Its mold loading and demolding are important links in the production of the product. The demolding and molding steps are key factors in ensuring product quality. At present, the vulcanization molds of metal-rubber composite damping springs are mostly manual mold structures or semi-automatic mold structures, and the following problems exist: 1. During vulcanization production, the mold operation is difficult, the operation efficiency is low, the mold life is short, and product quality problems occur frequently; 2. During the demolding process of the existing rubber mold, the petal mold fits the mold cavity, which is not conducive to flash cleaning and the automatic loading and demolding of the product skeleton; 3. The mold entry and demolding time is long, the mold heat loss is large, and the mold process stability cannot be guaranteed.

[0003] In the prior art, the following patents are related to automatic mold loading and demoulding of damping springs: 1. The invention patent with patent number "202110855233.X" and patent name "Fully-automatic demolding rubber mold and demolding method thereof" includes a bottom mold fixed to the lower hot plate of the vulcanizer, a support mold placed on the bottom mold and insertable on an external bracket, an upper mold arranged directly above the support mold and fixed to the upper hot plate of the vulcanizer, a cavity module assembly arranged on the support mold and enclosing to form a product cavity, and a middle mold supported between the support mold and the upper mold. This invention can improve the product vulcanization efficiency and the space utilization rate of the mold, reduce the demolding time, improve the demolding efficiency, and realize fully automatic core pulling and demolding.

[0004] 2. The invention patent with the patent number of "201710550578.8" and the patent name of "Automatic demoulding mold for elastic support of bearing type gearbox and automatic demoulding method thereof" includes a bottom mold assembly, a lower mold assembly, an upper mold assembly and a middle mold assembly. The upper mold assembly includes a top plate, a rubber injection plug and a rubber injection cylinder. The bottom mold assembly includes a bottom plate, a support plate and a diagonal plate. The lower mold assembly includes an outer petal mold, an inner petal mold, an upper mold insert, a lower mold insert, a mold core and a push rod assembly. The lower mold insert is placed between the outer petal mold and the inner petal mold and forms a vulcanization cavity with the outer petal mold, the inner petal mold and the upper mold insert. The demoulding operation in this scheme is simple, time-saving and efficient.

[0005] However, the above-mentioned prior art cannot realize the horizontal and vertical separation of the mold, and the efficiency of mold assembly and demoulding is limited, which makes it difficult to solve the above-mentioned problems. In summary, how to design a glue injection vulcanization device for a metal-rubber composite damping spring that can realize automatic opening and closing of the mold and product, separation of the valve and mold, high production efficiency, and guaranteed product quality is a problem that needs to be solved urgently. Summary of the invention

[0006] In order to solve the above problems, the present invention provides a glue injection vulcanization device for a metal-rubber composite vibration damping spring, which can realize the automatic opening and closing of the mold and the product, and the staggered separation of the petal mold and the mold, which is convenient for flash cleaning and the automatic molding and demolding of the product skeleton, and can improve the efficiency and quality of vibration damping spring production.

[0007] The present invention provides a glue injection vulcanization device for a metal-rubber composite vibration damping spring, which specifically comprises an upper mold assembly, a lower mold assembly and a flap mold assembly located between the upper mold assembly and the lower mold assembly, wherein the upper mold assembly is provided with a glue injection flow channel; the lower mold assembly comprises a demolding unit and a mold loading unit, wherein the metal component of the vibration damping spring to be injected with glue is molded by the mold loading unit, and the vibration damping spring with glue injected is removed from the mold by the demolding unit; the outer end of the flap mold assembly is connected to an opening and closing mold assembly, and the opening and closing of the flap mold assembly is controlled by the opening and closing mold assembly, and a limiting unit is provided on the flap mold assembly.

[0008] Furthermore, the flap mold assembly includes a plurality of pairs of flap mold groups, each group of flap mold groups includes a relatively symmetrically arranged flap mold body, and the inner end of each flap mold body is matched with an accommodating hole for accommodating a shock-absorbing spring; the limiting unit is arranged on the hole wall of the flap mold body.

[0009] Furthermore, a key is provided at the end of the flap mold body, and the opening and closing mold assembly includes a groove plate slidably connected to the key, and the flap mold body in the flap mold group is opened or closed through the vertical movement of the groove plate; a limiting step 1 is provided at the lower end of the groove plate, and a limiting step 2 is provided at the lower end of the flap mold body, which is located above the limiting step 1, and the downward opening stroke of the flap mold body is limited by the abutment between the limiting step 1 and the limiting step 2.

[0010] Furthermore, an "eight-shaped" key slot is provided on the slot plate, and the key on the petal mold body in each group of petal modules is generally in an "eight-shaped" shape that matches the key slot; a mold frame is connected to the slot plate, and the slot plate is driven to move vertically by the mold frame so that the key slides in the key slot. When the slot plate moves upward, the key moves downward in the key slot and the petal module opens; when the slot plate moves downward, the key moves upward in the key slot and the petal module closes.

[0011] Furthermore, the lower mold assembly includes a drag mold located below the petal mold assembly and a bottom mold located below the drag mold; the drag mold is provided with a plurality of placement areas for accommodating shock-absorbing springs, and the placement areas are arranged corresponding to the accommodating holes; the demolding unit includes a demolding groove opened at the upper end of the bottom mold and a demolding frame slidably placed in the demolding groove. When demolding is required, the shock-absorbing spring with glue injection is ejected from the drag mold by moving the demolding frame horizontally.

[0012] Furthermore, the middle part of the placement area is an ejection hole of a through-hole structure, and a receiving hole located on the drag mold is opened on the side of the placement area; an ejection rod is provided at the upper end of the demolding frame. When demolding is required, the demolding frame moves horizontally and the ejection rod is located directly below the ejection hole. When demolding is not required, the ejection rod is staggered from the ejection hole and received in the receiving hole.

[0013] Furthermore, a pull rod is staggered with the ejection rod on the bottom mold, and a placement hole is staggered with the accommodating hole and the placement area on the drag mold. The pull rod is inserted into the placement hole and extends upward to the inner wall of the flap mold body; the limiting unit includes a limiting platform located on the inner wall of the flap mold body and staggered with the accommodating hole. The diameter of the upper end of the pull rod is greater than the diameter of the lower end of the pull rod so that a wide limit block is formed at the upper end of the pull rod. When injecting glue, the lower end of the wide limit block is limited to the upper end of the limit platform.

[0014] Furthermore, the limit assembly also includes a stop platform arranged on the wall of the accommodating hole, the stop platform is located above the limit platform, and the outer sleeve of the shock-absorbing spring abuts against the lower end of the stop platform during glue injection; the upper and lower ends of the shock-absorbing spring are respectively provided with an upper profile insert and a lower profile insert, the upper profile insert is placed on the upper part of the accommodating hole, and the lower profile insert is placed on the upper part of the placement area.

[0015] Furthermore, the mold loading unit includes a mold loading frame body movably placed on the upper end of the drag mold, the mold loading frame body as a whole is located outside and above the placement area, and the mold loading frame body is matched with the placement area and is provided with a plurality of mold loading holes for accommodating metal parts of the shock-absorbing springs to be injected with glue; the mold loading frame body is provided with an opening and closing part that can open or close the mold loading holes.

[0016] Furthermore, the mold mounting frame includes a side frame body and an upper frame body connected to the side frame body, the side frame body is located as a whole outside the placement area, the upper frame body is located as a whole above the placement area, and the mold mounting hole is opened on the upper frame body; the opening and closing part includes a sliding groove opened at the inner end of the side frame body, a toggle groove opened on the upper frame body and an opening and closing plate slidably connected to the sliding groove, the opening and closing plate is located between the placement area and the mold mounting hole, and a toggle block located in the toggle groove is connected to the opening and closing plate, and the lateral position of the toggle block is adjusted so that the opening and closing plate can open or close the mold mounting hole.

[0017] Compared with the prior art, the present invention can achieve the following beneficial effects: 1. The present invention can realize the automatic opening and closing of the flap module through the flap mold assembly and the opening and closing mold assembly, realize the automatic separation of the flap mold and the product, realize the staggered separation of the flap module and the drag mold and the molding surface insert, and at the same time facilitate the cleaning of the flash of the product, which can greatly improve the production efficiency and improve the product quality.

[0018] 2. The present invention can realize automatic molding of products through the molding unit and automatic demoulding of products through the demoulding unit. It has a simple structure and strong practicality, and can further improve production efficiency and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of a glue injection vulcanization device provided according to an embodiment of the present invention; Figure 2 The partial structure diagram of the glue injection vulcanization device provided according to the embodiment of the present invention is shown in FIG. Figure 1 (upper die assembly not shown); Figure 3 : is a schematic diagram of the exploded structure of the glue injection vulcanization device provided according to an embodiment of the present invention (the upper mold surface insert, the damping spring, and part of the mold frame are not shown); Figure 4 yes Figure 3 A partial enlarged view of the M in the middle; Figure 5 2 is a schematic structural diagram of an opening and closing mold assembly of a glue injection vulcanization device provided according to an embodiment of the present invention; Figure 6 2 is a schematic structural diagram of a flap mold body of a glue injection vulcanization device provided according to an embodiment of the present invention; Figure 7 is a structural schematic diagram of a drag mold of a glue injection vulcanization device provided according to an embodiment of the present invention; Figure 8 is a schematic diagram of the exploded structure of the lower mold assembly of the glue injection vulcanization device provided in an embodiment of the present invention (when the demoulding frame is not dragged); Fig. 9 2 is a schematic structural diagram of a demoulding unit of a glue injection vulcanization device according to an embodiment of the present invention (when the demoulding frame is dragged); Fig.10 Schematic diagram of the structure of the mold unit of the injection vulcanization device provided according to an embodiment of the present invention Figure 1 ; Fig.11 Schematic diagram of the structure of the mold unit of the injection vulcanization device provided according to an embodiment of the present invention Figure 2 .

[0020] The accompanying drawings include: upper mold assembly 1, lower mold assembly 2, flap mold assembly 3, injection channel 4, demolding unit 5, mold loading unit 6, opening and closing mold assembly 7, flap mold body 8, accommodating hole 9, key 10, groove plate 11, limit step 12, limit step 2 13, keyway 14, mold frame 15, drag mold 16, bottom mold 17, placement area 18, demolding groove 19, demolding frame 20, ejection hole 21, accommodating hole 22, ejector rod 23, pull rod 24, placement hole 25, limit platform 26, stop platform 27, upper mold surface insert 28, lower mold surface insert 29, mold loading hole 30, side frame body 31, upper frame body 32, sliding groove 33, toggle groove 34, opening and closing plate 35, toggle block 36, upper mold plate 37, core shaft 38, outer sleeve 39, demolding handle 40. DETAILED DESCRIPTION

[0021] In the following, reference will be made to the Figure 1-11 Embodiments of the present invention are described. In the following description, the same modules are represented by the same reference numerals. In the case of the same reference numerals, their names and functions are also the same. Therefore, the detailed description thereof will not be repeated.

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following Figure 1-11 It should be understood that the specific embodiments described herein are only used to explain the present invention and do not constitute a limitation of the present invention.

[0023] A glue injection vulcanization device for a metal-rubber composite damping spring comprises an upper mold assembly 1, a lower mold assembly 2 and a flap mold assembly 3 located between the upper mold assembly 1 and the lower mold assembly 2. The upper mold assembly 1 is provided with a glue injection channel 4. The upper mold assembly 1 comprises an upper mold plate 37. The glue injection channel 4 is arranged on the upper mold plate 37. The lower mold assembly 2 comprises a demoulding unit 5 and a mold loading unit 6. The mold loading unit 6 is used to load the metal parts of the damping spring to be injected with glue, specifically, the outer sleeve 39 of the damping spring to be injected with glue is loaded with the mold. The damping spring with the glue injected is removed from the mold by the demoulding unit 5. The outer end of the flap mold assembly 3 is connected to an opening and closing mold assembly 7, and the opening and closing of the flap mold assembly 3 is controlled by the opening and closing mold assembly 7. The flap mold assembly 3 is also provided with a limiting unit. The limiting unit is used to limit the entire vulcanization device, especially the lower mold assembly 2, the flap mold assembly 3, and the parts of the damping spring, so as to improve the processing stability.

[0024] The flap mold assembly 3 includes a plurality of pairs of flap molds, each of which includes two flap mold bodies 8 that are relatively symmetrically arranged. The inner end of each flap mold body 8 is matched and opened, and a key 10 is provided at the end of the flap mold body 8. The opening and closing mold assembly 7 includes a slot plate 11 that is slidably connected to the key 10. The slot plate 11 is an inclined plate structure. The flap mold body 8 in the flap module is opened or closed by the vertical movement of the slot plate 11. Figure 3The B in the figure shows the open state of the flap mold body 8 in the flap mold assembly, and the A shows the closed state of the flap mold body 8. Figure 3 The closed or open state of the flap modules is only illustrated. In actual operation, each group of flap modules is opened or closed at the same time.

[0025] like Figure 3 , Figure 4 As shown, the lower end of the slot plate 11 is provided with a limiting step 12, and the lower end of the flap mold body 8 is provided with a limiting step 2 13 located above the limiting step 12. The slot plate 11 is provided with an "eight-shaped" keyway 14, and the key 10 on the flap mold body 8 in each flap mold group is in an "eight-shaped" shape that matches the keyway 14. The slot plate 11 is connected to a mold frame 15, and the slot plate 11 is driven to move vertically by the mold frame 15, so that the key 10 slides in the keyway 14. When the slot plate When the slot plate 11 moves upward, the key 10 moves downward in the key slot 14 and the flap module is opened. When the slot plate 11 moves downward, the key 10 moves upward in the key slot 14 and the flap module is closed. At the same time, when the key 10 moves downward in the key slot 14, that is, when it moves toward the opening section of the lower part of the "figure eight", the limiting step 2 13 will abut and be limited at the upper end of the limiting step 12. The downward opening stroke of the flap mold body 8 is limited by the abutment between the limiting step 12 and the limiting step 2 13.

[0026] The lower mold assembly 2 includes a drag mold 16 located below the flap mold assembly 3 and a bottom mold 17 located below the drag mold 16. The drag mold 16 is provided with a plurality of placement areas 18 for accommodating the damping spring, and the placement areas 18 are arranged corresponding to the accommodating holes 9. The upper and lower ends of the damping spring are respectively provided with an upper profile insert 28 and a lower profile insert 29. The upper profile insert 28 is placed on the upper part of the accommodating hole 9, and the lower profile insert 29 is placed on the upper part of the placement area 18. The upper profile insert 28 and the lower profile insert 29 are designed to match the profile of the rubber body of the damping spring.

[0027] like Figure 7-Figure 9 As shown, the demoulding unit 5 includes a demoulding groove 19 provided at the upper end of the bottom mold 17 and a demoulding frame 20 slidably placed in the demoulding groove 19. When demoulding is required, the demoulding frame 20 is horizontally moved to eject the damping spring after the injection of glue from the drag mold 16. The demoulding frame 20 is provided with a demoulding handle 40. The demoulding frame 20 is dragged by holding the demoulding handle 40. Fig. 9 It is the state during injection vulcanization, that is, the state where the demoulding frame 20 is not pulled out. Fig.10The demoulding frame 20 is dragged out during demoulding. The middle of the placement area 18 is an ejection hole 21 of a through-hole structure, and a receiving hole 22 located on the drag mold 16 is opened on the side of the placement area 18. An ejector rod 23 is provided on the upper end of the demoulding frame 20. When demoulding is required, the demoulding frame 20 is dragged in the demoulding state so that the demoulding frame 20 moves horizontally and the ejector rod 23 is located directly below the ejector hole 21. At this time, the drag mold 16 is dropped, and the ejector rod 23 can eject the processed damping spring. The ejector rod 23 just pushes against the lower end of the core shaft 38. When demoulding is not required, the ejector rod 23 is staggered from the ejection hole 21 and is accommodated in the receiving hole 22 to avoid interference.

[0028] A pull rod 24 is staggered with the ejector rod 23 on the bottom mold 17, and a placement hole 25 is staggered with the receiving hole 22 and the placement area 18 on the drag mold 16. The pull rod 24 is inserted into the placement hole 25 and extends upward to the inner wall of the flap mold body 8. Figure 6 As shown, the limiting unit includes a limiting platform 26 located on the inner wall of the flap mold body 8 and staggered with the accommodating hole 9. The diameter of the upper end of the pull rod 24 is greater than the diameter of the lower end of the pull rod 24, so that a wide limiting block is formed at the upper end of the pull rod 24. During glue injection, the lower end of the wide limiting block is limited to the upper end of the limiting platform 26. At this time, the entire lower mold assembly 2 and the flap mold assembly 3 are pulled by the pull rod 24, so that the glue injection and vulcanization device is limited as a whole. At the same time, the limiting assembly also includes a stop platform 27 arranged on the wall of the accommodating hole 9. The stop platform 27 is located above the limiting platform 26. During glue injection, the outer sleeve of the damping spring abuts against the lower end of the stop platform 27, which can prevent the outer sleeve of the damping spring from moving during the vulcanization process, thereby improving the efficiency and quality of vulcanization.

[0029] like Fig.10 , Fig.11 As shown, the mold unit 6 includes a mold frame body movably placed on the upper end of the drag mold 16, and the mold frame body is located outside and above the placement area 18 as a whole. The mold frame body is matched with the placement area 18 and is provided with a plurality of mold holes 30 for accommodating metal parts of the vibration-damping spring to be injected with glue, which are mainly used to accommodate the metal jacket 39 of the vibration-damping spring. The mold frame body is provided with an opening and closing member that can open or close the mold hole 30.

[0030] The mold mounting frame includes a side frame 31 and an upper frame 32 connected to the side frame 31. The side frame 31 is located outside the placement area 18 as a whole, and the upper frame 32 is located above the placement area 18 as a whole. The mold mounting hole 30 is opened on the upper frame 32. Fig.10 , Fig.11As shown, the opening and closing member includes a sliding groove 33 opened at the inner end of the side frame body 31, a toggle groove 34 opened on the upper frame body 32 and an opening and closing plate 35 slidably connected to the sliding groove 33. The opening and closing plate 35 is located between the placement area 18 and the mold hole 30. The opening and closing plate 35 is arranged close to the bottom end of the upper frame body 32. A toggle block 36 located in the toggle groove 34 is connected to the opening and closing plate 35. The lateral position of the toggle block 36 is adjusted so that the opening and closing plate 35 can open or close the mold hole 30. Fig.11 The X region is in the state where the opening and closing plate 35 is opened, and the coat 39 has fallen onto the placement area 18, while the Y region is in the state where the opening and closing plate 35 is opened, and the coat 39 has not fallen.

[0031] In order to clearly show the structure of each component, some of the figures in the accompanying drawings show the state where the mandrel 38 and the outer sleeve 39 are installed, and some of the figures do not show the state where the mandrel 38 and the outer sleeve 39 are installed. The accompanying drawings are for reference. The implementation method of the damping spring when the mold is installed, vulcanized, and demolded by the injection vulcanization device is as follows: When in use, first install the mandrel 38 into the ejection hole 21, then place the outer sleeve 39 into the mold hole 30 of the upper frame 32, push open the opening and closing plate 35, and the outer sleeve 39 falls downward to the placement area 18 on the drag mold 16, and the mold unit 6 is removed. Alternatively, the outer sleeve 39 may be first installed into the placement area 18 according to the above method, and then the mandrel 38 may be installed into the ejection hole 21. Those skilled in the art may perform the operation according to the actual situation. Then, the drag mold 16 is connected to the lower mold assembly 2 and placed as a whole below the flap mold assembly 3, and the opening and closing mold assembly 7 is moved. The mold frame 15 drives the slot plate 11 and the key 10 upward, and at this time, the flap mold body 8 also moves upward, and the flap mold assembly is closed, and the glue injection operation is performed.

[0032] When the injection is completed, the mold opening and closing assembly 7 is moved, and the mold frame 15 drives the groove plate 11 and the key 10 downward. At this time, the flap mold body 8 also moves downward, the flap mold group is opened, and the damping spring product after the injection is separated from the flap mold group. The drag mold 16 together with the lower mold assembly 2 is dragged away from the bottom of the flap mold assembly 3. Then lift the drag mold 16 from the bottom mold 17 and pull the demoulding frame 20 so that Fig. 9 The demoulding frame 20 shown moves in the demoulding groove 19, so that the ejector rod 23 moves to the right below the core shaft 38, and the mold 16 is dragged in the direction. At this time, the ejector rod 23 ejects the damping spring after the glue is injected, and the demoulding operation is completed.

[0033] The drag mold 16 is lifted up again, and the demoulding frame 20 is moved to the original position in the demoulding groove 19, and then the drag mold 16 is put down, and the mold installation, glue injection, vulcanization and demoulding are performed again according to the above steps.

[0034] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

[0035] The above specific implementations of the present invention do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and modifications made based on the technical concept of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A glue injection vulcanization device for a metal-rubber composite damping spring, characterized in that: The invention comprises an upper mold assembly (1), a lower mold assembly (2) and a flap mold assembly (3) located between the upper mold assembly (1) and the lower mold assembly (2); the upper mold assembly (1) is provided with a glue injection channel (4); the lower mold assembly (2) comprises a demoulding unit (5) and a mold loading unit (6); a metal part of a vibration damping spring to be injected with glue is molded by the mold loading unit (6); and the vibration damping spring injected with glue is removed from the mold by the demoulding unit (5); an opening and closing mold assembly (7) is connected to the outer end of the flap mold assembly (3); the opening and closing of the flap mold assembly (3) is controlled by the opening and closing mold assembly (7); and a limit unit is provided on the flap mold assembly (3).

2. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 1 is characterized in that: The flap mold assembly (3) comprises a plurality of pairs of flap mold groups, each group of flap mold groups comprises a flap mold body (8) that is relatively symmetrically arranged, and the inner end of each flap mold body (8) is matched with a receiving hole (9) for receiving a damping spring; the limiting unit is arranged on the hole wall of the flap mold body (8).

3. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 2 is characterized in that: A key (10) is provided at the end of the flap mold body (8), and the opening and closing mold assembly (7) includes a groove plate (11) slidably connected to the key (10), and the flap mold body (8) in the flap mold assembly is opened or closed by vertical movement of the groove plate (11); a limiting step 1 (12) is provided at the lower end of the groove plate (11), and a limiting step 2 (13) located above the limiting step 1 (12) is provided at the lower end of the flap mold body (8), and the downward opening stroke of the flap mold body (8) is limited by the contact between the limiting step 1 (12) and the limiting step 2 (13).

4. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 3 is characterized in that: The slot plate (11) is provided with an "eight-shaped" key slot (14); the key (10) on the flap mold body (8) in each flap module group is in an "eight-shaped" shape as a whole that matches the key slot (14); the slot plate (11) is connected to a mold frame (15), and the mold frame (15) drives the slot plate (11) to move vertically so that the key (10) slides in the key slot (14); when the slot plate (11) moves upward, the key (10) moves downward in the key slot (14) and the flap module is opened; when the slot plate (11) moves downward, the key (10) moves upward in the key slot (14) and the flap module is closed.

5. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 4 is characterized in that: The lower mold assembly (2) comprises a drag mold (16) located below the flap mold assembly (3) and a bottom mold (17) located below the drag mold (16); the drag mold (16) is provided with a plurality of placement areas (18) for accommodating vibration-damping springs, and the placement areas (18) are arranged corresponding to the accommodating holes (9); the demoulding unit (5) comprises a demoulding groove (19) opened at the upper end of the bottom mold (17) and a demoulding frame (20) slidably disposed in the demoulding groove (19); when demoulding is required, the vibration-damping springs after injection of glue are ejected from the drag mold (16) by horizontally moving the demoulding frame (20).

6. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 5, characterized in that: The middle of the placement area (18) is an ejection hole (21) of a through-hole structure, and a receiving hole (22) located on the drag mold (16) is opened on the side of the placement area (18); an ejection rod (23) is provided at the upper end of the demoulding frame (20); when demoulding is required, the demoulding frame (20) moves horizontally and the ejection rod (23) is located directly below the ejection hole (21); when demoulding is not required, the ejection rod (23) is staggered from the ejection hole (21) and is received in the receiving hole (22).

7. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 6, characterized in that: The bottom mold (17) is provided with a pull rod (24) staggered with the ejection rod (23); the drag mold (16) is provided with a placement hole (25) staggered with the accommodating hole (22) and the placement area (18); the pull rod (24) is passed through the placement hole (25) and extends upward to the inner wall of the flap mold body (8); the limiting unit includes a limiting platform (26) located on the inner wall of the flap mold body (8) and staggered with the accommodating hole (9); the diameter of the upper end of the pull rod (24) is greater than the diameter of the lower end of the pull rod (24) so ​​that a wide limit block is formed at the upper end of the pull rod (24); when injecting glue, the lower end of the wide limit block is limited to the upper end of the limit platform (26).

8. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 7, characterized in that: The limit assembly further comprises a stop platform (27) arranged on the hole wall of the accommodating hole (9), the stop platform (27) being located above the limit platform (26), and the outer sleeve of the damping spring abuts against the lower end of the stop platform (27) during glue injection; the upper and lower ends of the damping spring are respectively provided with an upper profile insert (28) and a lower profile insert (29), the upper profile insert (28) being placed on the upper part of the accommodating hole (9), and the lower profile insert (29) being placed on the upper part of the placement area (18).

9. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 8, characterized in that: The mold loading unit (6) comprises a mold loading frame body movably placed on the upper end of the drag mold (16), the mold loading frame body being located as a whole outside and above the placement area (18), and a plurality of mold loading holes (30) for accommodating metal parts of the vibration damping spring to be injected with glue are provided on the mold loading frame body to match the placement area (18); and an opening and closing member capable of opening or closing the mold loading holes (30) is provided on the mold loading frame body.

10. The glue injection vulcanization device for the metal-rubber composite damping spring according to claim 9, characterized in that: The die loading frame body comprises a side frame body (31) and an upper frame body (32) connected to the side frame body (31); the side frame body (31) is located as a whole outside the placement area (18); the upper frame body (32) is located as a whole above the placement area (18); and the die loading hole (30) is formed on the upper frame body (32); the opening and closing member comprises a sliding groove (33) formed at the inner end of the side frame body (31), a toggle groove (34) formed on the upper frame body (32), and an opening and closing plate (35) slidably connected to the sliding groove (33); the opening and closing plate (35) is located between the placement area (18) and the die loading hole (30); a toggle block (36) located in the toggle groove (34) is connected to the opening and closing plate (35); and the lateral position of the toggle block (36) is adjusted so that the opening and closing plate (35) opens or closes the die loading hole (30).

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