Spring-shaped rubber tube secondary vulcanization setting device

Abstract

The application provides a spring-shaped rubber tube secondary vulcanization shaping device and relates to the technical field of rubber tube vulcanization, which comprises a vulcanization tank, the inside of the vulcanization tank is provided with a supporting mechanism, the supporting mechanism comprises a movable supporting frame, two auxiliary supporting plates are hinged to the inner wall of the movable supporting frame, and the inside of the movable supporting frame is provided with four winding molds. The winding mold is arranged, bidirectional screws, threaded pipes and inclined slide rail frames are linked in the winding mold, four arc-shaped plates can be driven to move away from each other or move closer to each other synchronously when the bidirectional screws are rotated, the four arc-shaped plates form a cylindrical mold with an adjustable diameter, the two ends of the rubber tube are clamped by the clamping mechanism, and the winding mold is driven to rotate by the auxiliary driving mechanism, so that the rubber tube can be wound into a spring shape, and the winding efficiency can be greatly improved.

Description

Technical Field

[0001] This invention relates to the field of rubber hose vulcanization technology, and in particular to a two-stage vulcanization and shaping device for spring-shaped rubber hoses. Background Technology

[0002] Spring-shaped rubber tubing, which is shaped like a spring, can be extended and lengthened significantly during use and is widely used for connecting pneumatic components.

[0003] The vulcanization and shaping of spring-shaped rubber hoses is more complex than that of strip-shaped rubber hoses. The process involves: first, primary vulcanization of the raw rubber hose, through a basic cross-linking reaction, shaping it into a structurally stable strip-shaped rubber hose, forming the basic shape and performance foundation of the product. Next, the shaping stage begins, where the strip-shaped rubber hose obtained from the primary vulcanization is precisely wound around the outside of a cylindrical mold. Through a standardized winding process, it forms a tight and regular spring-shaped spiral. Then, a secondary vulcanization is performed, placing the wound spring-shaped rubber hose in a vulcanizing tank for a second vulcanization and shaping process, simultaneously eliminating internal stress generated during the molding process, ultimately forming the spring-shaped rubber hose.

[0004] Currently, the two-stage vulcanization process for spring-shaped rubber hoses requires operators to wind the first-stage vulcanized rubber hose around a cylindrical mold, forming a spring shape, before placing it in a vulcanizing tank for further curing and shaping. This winding process is cumbersome and inefficient. After vulcanization, the spring-shaped rubber hose is tightly attached to the cylindrical mold, making removal difficult. This necessitates manual disassembly of the mold and peeling of the finished product, a tedious operation that can easily damage the rubber hose. Therefore, a two-stage vulcanization and shaping device for spring-shaped rubber hoses is proposed. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a two-stage vulcanization and shaping device for spring-shaped rubber tubes, including a vulcanizing tank, wherein a support mechanism is provided inside the vulcanizing tank, the support mechanism including a movable support frame, and two auxiliary support plates are hinged to the inner wall of the movable support frame; The movable support frame is equipped with four winding molds inside. Each winding mold includes a hollow tube rotatably connected to the inner wall of the movable support frame and four arc-shaped plates arranged in a circle. The hollow tube can be rotatably inserted into the strip hole of the auxiliary support plate. The inner wall of the hollow tube is rotatably connected to a bidirectional screw. The outer surface of the bidirectional screw is threaded with two symmetrical threaded tubes. The outer surface of each of the two threaded tubes is fixed with four inclined slide rails arranged in a circle. The inclined slide rails are slidably connected to the inner wall of the hollow tube. The outer surface of each of the four arc-shaped plates is fixed with two U-shaped rods. The U-shaped rods are slidably connected in the inclined sliding holes of the inclined slide rails.

[0006] By adopting the above technical solution, when the bidirectional screw is rotated, the two threaded tubes move closer to each other or further away from each other. The two sets of inclined slide rails on the two threaded tubes are symmetrically designed, so that when the threaded tubes move, the inclined slide rails and U-shaped rods push the four arc plates to move away from or move closer to the hollow tube simultaneously.

[0007] Each of the hollow tubes is provided with a clamping mechanism on its exterior, the clamping mechanism including a second L-shaped block and a first L-shaped block fixed to the outer surface of the arc plate.

[0008] An auxiliary driving mechanism is provided on the outside of the vulcanizing tank. The auxiliary driving mechanism includes a movable U-shaped frame, an L-shaped moving frame, and an arc-shaped smoothing plate, which is adapted to the arc-shaped plate.

[0009] Furthermore, two sets of inclined plates are fixed on the upper surface of the movable support frame, and the positions of the two auxiliary support plates correspond to the positions of the two sets of inclined plates respectively. A plug rod is slidably arranged between each set of inclined plates and the auxiliary support plates, and an anti-detachment clamp is provided at the end of the plug rod.

[0010] Furthermore, multiple telescopic rods arranged at equal intervals are fixed to the inner sides of the four arc-shaped plates, and the ends of the multiple telescopic rods away from the arc-shaped plates are fixed to the outer surface of the hollow tube.

[0011] Furthermore, a first guide rod is fixed to the upper surface of the first L-shaped block, and a first clamping block is slidably connected to the outer surface of the first guide rod. The first clamping block is slidably disposed within the first L-shaped block, and a first bolt is slidably inserted inside the first clamping block. The bottom of the first bolt is threaded into the first L-shaped block. The first L-shaped block and the first clamping block can be used to fix the initial end of the rubber tube to be wound.

[0012] Furthermore, a second guide rod is fixed to the upper surface of the second L-shaped block, a second clamping block is slidably connected to the outer surface of the second guide rod, the second clamping block is slidably connected inside the second L-shaped block, a second bolt is slidably inserted inside the second clamping block, and the bottom end of the second bolt is threadedly connected inside the second L-shaped block.

[0013] Furthermore, a T-shaped slider is fixed to the bottom surface of the second L-shaped block, and the T-shaped slider can be slidably inserted into a slot opened at one end of the arc plate. A third bolt is connected to the internal thread of the second L-shaped block.

[0014] Furthermore, a drive motor is fixed to the inner wall of the L-shaped moving frame, and a snap-fit ​​seat is fixed to the output shaft end of the drive motor, the snap-fit ​​seat being adapted to the hollow tube.

[0015] Furthermore, a threaded rod is rotatably connected to the outer surface of the arc-shaped smoothing plate. The threaded rod passes through the L-shaped moving frame and is threadedly connected to the L-shaped moving frame. Two sliding rods are fixed to the outer surface of the arc-shaped smoothing plate. Both sliding rods pass through the L-shaped moving frame and are slidably connected to the L-shaped moving frame.

[0016] By adopting the above technical solution, the distance between the arc-shaped flat plate and the arc-shaped plate can be adjusted by rotating the threaded rod to match the diameter of the rubber tube itself.

[0017] Furthermore, an electric push rod is fixed to the upper surface of the movable U-shaped frame, the top end of the electric push rod is fixed to the outer surface of the L-shaped movable frame, and two fixed rods are fixed to the upper surface of the movable U-shaped frame. Sliding sleeves are slidably connected to the outer surfaces of the two fixed rods, and the two sliding sleeves are fixed to the outer surface of the L-shaped movable frame.

[0018] Compared with existing technologies, this two-stage vulcanization and shaping device for spring-shaped rubber tubes has the following advantages: I. This invention utilizes a winding mold in which a bidirectional screw, a threaded tube, and an inclined slide rail are linked. Rotating the bidirectional screw drives four arc-shaped plates to move away or move closer simultaneously, forming an adjustable-diameter cylindrical mold. Simultaneously, a clamping mechanism holds both ends of the rubber tube, and an auxiliary drive mechanism drives the winding mold to rotate, facilitating the winding of the rubber tube into a spring shape and significantly improving winding efficiency. Furthermore, when removing the spring-shaped rubber tube from the winding mold after secondary vulcanization and setting, rotating the bidirectional screw drives the four arc-shaped plates to move closer simultaneously. This prevents the set spring-shaped rubber tube from being tightly fitted onto the four arc-shaped plates, facilitating its removal from the winding mold and further improving operational efficiency.

[0019] Second, the present invention supports the winding mold through a support mechanism. In the support mechanism, the anti-detachment clamp can be removed and the insertion rod can be pulled out from the inclined plate and the auxiliary support plate. At this time, the top of the auxiliary support plate can be rotated downward so that the auxiliary support plate no longer supports one end of the hollow tube, which makes it easier to remove the shaped spring-shaped rubber tube from one end of the winding mold and further improves the work efficiency.

[0020] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the movable support frame when it is removed from the vulcanizing tank in this invention; Figure 3 This is a three-dimensional structural diagram of the movable support frame and the movable U-shaped frame used in this invention to wind the rubber tube. Figure 4 This is a three-dimensional structural diagram of the movable support frame and hollow tube in this invention; Figure 5 This is a three-dimensional structural diagram of the auxiliary support plate when it is removed in this invention; Figure 6 This is a schematic diagram showing the disassembled structure of the inclined plate, the insertion rod, and the anti-detachment clamp in this invention; Figure 7 This is a three-dimensional structural diagram of the movable U-shaped frame and L-shaped movable frame in this invention; Figure 8 This is a three-dimensional structural diagram of the arc-shaped plate with a rubber tube wrapped around it in this invention. Figure 9 This is a three-dimensional structural diagram of the arc-shaped plate and the telescopic rod in this invention; Figure 10 This is a schematic diagram of the structure between the arc-shaped plate and the hollow tube in this invention; Figure 11 This is a three-dimensional structural diagram of the second L-shaped block and the second clamping block in this invention; Figure 12 This is a schematic diagram of the disassembled structure of the second L-shaped block and the second clamping block of the arc plate of the present invention; Figure 13 This is a three-dimensional structural diagram of the first L-shaped block and the first clamping block of the arc plate of the present invention; Figure 14 This is a schematic diagram showing the disassembled structure of the first L-shaped block and the first clamping block of the arc plate of the present invention.

[0022] In the picture: 1. Vulcanizing tank; 2. Support mechanism; 21. Movable support frame; 22. Auxiliary support plate; 23. Inclined plate; 24. Insert rod; 25. Anti-detachment clamp; 3. Winding mold; 31. Hollow tube; 32. Arc plate; 33. Bidirectional screw; 34. Threaded tube; 35. Inclined slide rail frame; 36. U-shaped rod; 37. Telescopic rod; 4. Clamping mechanism; 41. First L-shaped block; 42. First clamping block; 43. First bolt; 44. First guide rod; 45. Second L-shaped block; 46. Second clamping block; 47. T-shaped slider; 48. Second bolt; 49. Second guide rod; 410. Third bolt; 5. Auxiliary drive mechanism; 51. Movable U-shaped frame; 52. L-shaped moving frame; 53. Arc-shaped flat plate; 54. Drive motor; 55. Snap-fit ​​seat; 56. Threaded rod; 57. Sliding rod; 58. Sliding sleeve; 59. Fixed rod; 510. Electric push rod; 6. External platform; 7. Auxiliary connecting frame. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 14 The present invention provides the following implementation scheme: a two-stage vulcanization and shaping device for a spring-shaped rubber tube, comprising a vulcanization tank 1. The vulcanization tank 1 is equipped with a thermal circulation system and a pressurization system to provide a high-temperature and high-pressure vulcanization environment for the rubber tube, so as to vulcanize and shape the rubber tube. This can be implemented using existing technology. The vulcanization tank 1 is equipped with a support mechanism 2, which includes a movable support frame 21. The inner wall of the movable support frame 21 is hinged with two auxiliary support plates 22. When the auxiliary support plates 22 are in a vertical state, they can provide auxiliary support for the hollow tube 31. When the auxiliary support plates 22 are rotated downwards, it facilitates the unloading of the rubber tube after two-stage vulcanization on the surface of the arc plate 32.

[0025] Please refer to this carefully. Figure 4 , Figure 5 and Figure 6 Two sets of inclined plates 23 are fixed to the upper surface of the movable support frame 21. The positions of two auxiliary support plates 22 correspond to the positions of the two sets of inclined plates 23. An insertion rod 24 is slidably arranged between each set of inclined plates 23 and auxiliary support plates 22. An anti-detachment clip 25 is provided at the end of the insertion rod 24. The insertion rod 24 is inserted into both the inclined plate 23 and the auxiliary support plate 22 at the same time, which can keep the auxiliary support plate 22 in a vertical state. The anti-detachment clip 25 is locked at one end of the insertion rod 24 to prevent the insertion rod 24 from falling out of the auxiliary support plate 22 and the inclined plate 23.

[0026] Please refer to this carefully. Figure 8 , Figure 9 and Figure 10The movable support frame 21 has four winding molds 3 inside. Each winding mold 3 includes a hollow tube 31 rotatably connected to the inner wall of the movable support frame 21 and four circumferentially arranged arc-shaped plates 32. The hollow tube 31 is rotatably inserted into the slot of the auxiliary support plate 22. A bidirectional screw 33 is rotatably connected to the inner wall of the hollow tube 31. The outer surface of the bidirectional screw 33 is threaded with two symmetrical threaded tubes 34. The outer surface of each threaded tube 34 is fixed with four circumferentially arranged inclined slide rails 3. 5. Multiple inclined slide rails 35 are slidably connected to the inner wall of the hollow tube 31. Two U-shaped rods 36 are fixed to the inner surface of each of the four arc plates 32. The U-shaped rods 36 are slidably connected to the inclined sliding holes of the inclined slide rails 35. When the bidirectional screw 33 is rotated, the two threaded tubes 34 move closer to each other or further away from each other. The two sets of inclined slide rails 35 on the two threaded tubes 34 are symmetrically designed so that when the threaded tubes 34 move, they push the four arc plates 32 to move away or move closer to each other synchronously through the inclined slide rails 35 and the U-shaped rods 36.

[0027] Please refer to this carefully. Figure 9 and Figure 10 Multiple telescopic rods 37 arranged at equal intervals are fixed on the inner sides of the four arc-shaped plates 32. The ends of the multiple telescopic rods 37 away from the arc-shaped plates 32 are fixed on the outer surface of the hollow tube 31. The telescopic rods 37 guide the movement of the arc-shaped plates 32.

[0028] Please refer to this carefully. Figure 8 , Figure 13 and Figure 14 Each hollow tube 31 is provided with a clamping mechanism 4 on its exterior. The clamping mechanism 4 includes a second L-shaped block 45 and a first L-shaped block 41 fixed on the outer surface of the arc plate 32. The first L-shaped block 41 and the second L-shaped block 45 are disposed on one of the four arc plates 32. A first guide rod 44 is fixed on the upper surface of the first L-shaped block 41. A first clamping block 42 is slidably connected to the outer surface of the first guide rod 44. The first clamping block 42 is slidably disposed inside the first L-shaped block 41. A first bolt 43 is slidably inserted inside the first clamping block 42. The bottom of the first bolt 43 is threadedly connected to the first L-shaped block 41. The initial end of the rubber tube to be wound is fixed by the first L-shaped block 41 and the first clamping block 42.

[0029] Please refer to this carefully. Figure 8 , Figure 11 and Figure 12A second guide rod 49 is fixed on the upper surface of the second L-shaped block 45. A second clamping block 46 is slidably connected to the outer surface of the second guide rod 49. The second clamping block 46 is slidably connected inside the second L-shaped block 45. A second bolt 48 is slidably inserted inside the second clamping block 46. The bottom end of the second bolt 48 is threaded inside the second L-shaped block 45. The two ends of the rubber tube wound into a spring shape are fixed by the second L-shaped block 45 and the second clamping block 46.

[0030] Please refer to this carefully. Figure 8 , Figure 11 and Figure 12 The bottom surface of the second L-shaped block 45 is fixed with a T-shaped slider 47, which can be slidably inserted into a slot opened at one end of the arc plate 32. The internal thread of the second L-shaped block 45 is connected with a third bolt 410. When the third bolt 410 is tightened and its bottom end is firmly pressed against the arc plate 32, the second L-shaped block 45 can be fixed at one end of the arc plate 32.

[0031] Please refer to this carefully. Figure 3 and Figure 7 An auxiliary drive mechanism 5 is provided on the outside of the vulcanizing tank 1. The auxiliary drive mechanism 5 includes a movable U-shaped frame 51, an L-shaped moving frame 52, and an arc-shaped smoothing plate 53. The arc-shaped smoothing plate 53 is adapted to the arc-shaped plate 32. A drive motor 54 is fixed on the inner wall of the L-shaped moving frame 52. A snap-fit ​​seat 55 is fixed on the output shaft end of the drive motor 54. The snap-fit ​​seat 55 is adapted to the hollow tube 31. The end of the hollow tube 31 is provided with a snap-fit ​​hole adapted to the snap-fit ​​seat 55. The snap-fit ​​seat 55 is inserted into the snap-fit ​​hole of the hollow tube 31, and the drive motor 54 is controlled to run, so that the hollow tube 31 can be rotated through the snap-fit ​​seat 55.

[0032] Please refer to this carefully. Figure 3 and Figure 7 A threaded rod 56 is rotatably connected to the outer surface of the arc-shaped smoothing plate 53. The threaded rod 56 passes through the L-shaped moving frame 52 and is threadedly connected to the L-shaped moving frame 52. Two sliding rods 57 are fixed to the outer surface of the arc-shaped smoothing plate 53. Both sliding rods 57 pass through the L-shaped moving frame 52 and are slidably connected to the L-shaped moving frame 52. By rotating the threaded rod 56, the distance between the arc-shaped smoothing plate 53 and the arc-shaped plate 32 can be adjusted to match the diameter of the rubber tube.

[0033] Please refer to this carefully. Figure 3 and Figure 7An electric push rod 510 is fixed on the upper surface of the movable U-shaped frame 51. The top end of the electric push rod 510 is fixed on the outer surface of the L-shaped movable frame 52. The movable support frame 21 can be stably inserted into the movable U-shaped frame 51. When the electric push rod 510 is at its shortest distance, the locking seat 55 corresponds to the two hollow tubes 31 below. When the electric push rod 510 is at its longest distance, the locking seat 55 corresponds to the two hollow tubes 31 above. Two fixing rods 59 are fixed on the upper surface of the movable U-shaped frame 51. Sliding sleeves 58 are slidably connected to the outer surfaces of the two fixing rods 59. The two sliding sleeves 58 are fixed on the outer surface of the L-shaped movable frame 52. The sliding sleeves 58 and the fixing rods 59 guide the movement of the L-shaped movable frame 52. The movable U-shaped frame 51 is set on the external platform 6, and the movable support frame 21 can be moved to the external platform 6 or inside the vulcanizing tank 1 through the auxiliary connecting frame 7.

[0034] Working principle: First, it should be noted that the spring-shaped rubber tube is formed by winding a primary vulcanized strip of rubber onto a winding mold 3, thus shaping the strip of rubber into a spring-like shape (e.g., Figure 8 (As shown), and then put it into vulcanizing tank 1 for secondary vulcanization and shaping to obtain the product.

[0035] When winding the strip rubber tube onto the winding mold 3, firstly, rotate the bidirectional screw 33 to bring the two threaded tubes 34 closer together or further apart. The inclined slide rail 35 and U-shaped rod 36 then push the four arc-shaped plates 32 to move away or closer simultaneously, adapting the arc-shaped plates 32 to the diameter of the rubber tube wound into a spring-shaped profile. Next, move the movable support frame 21 to the position of the movable U-shaped frame 51, so that the bottom of the movable support frame 21 is inserted into the movable U-shaped frame 51. At this time, the snap-fit ​​seat 55 is inserted into one of the hollow tubes 31, and the threaded rod 56 is rotated to adjust the distance between the arc-shaped smoothing plate 53 and the arc-shaped plate 32, thus adapting to the diameter of the rubber tube itself. Place the initial end of the first-stage vulcanized rubber tube between the first L-shaped block 41 and the first clamping block 42, and tighten the first bolt 43 to clamp and fix the initial end of the rubber tube. The strip rubber tube passes between the arc-shaped smoothing plate 53 and the arc-shaped plate 32, with the remaining portion stacked below. At this time, the drive motor 54 is controlled to run, which drives the card holder 55 and the hollow tube 31 to rotate. Under the smoothing action of the arc-shaped smoothing plate 53, the hollow tube 31 and the arc plate 32 drive the strip rubber tube to wrap around the surface of the four arc plates 32, so that the rubber tube is wound into a spring shape. After the winding is completed, move the second L-shaped block 45 to a suitable position, then tighten the third bolt 410 to lock the position of the second L-shaped block 45, place the end of the rubber tube between the second L-shaped block 45 and the second clamping block 46, and tighten the second bolt 48 to clamp and fix the end of the rubber tube between the second L-shaped block 45 and the second clamping block 46. Then, the movable support frame 21 on the external platform 6 is pushed into the vulcanizing tank 1 through the auxiliary connecting frame 7 for secondary vulcanization and shaping to form a spring-shaped rubber tube. After vulcanization and shaping, the movable support frame 21 is pushed out, the anti-detachment clamp 25 is removed, and the insertion rod 24 is pulled out from the inclined plate 23 and the auxiliary support plate 22. At this time, the top of the auxiliary support plate 22 can be rotated downward so that the auxiliary support plate 22 no longer supports one end of the hollow tube 31. Then, the two ends of the spring-shaped rubber tube are removed from the clamping mechanism 4, and the bidirectional screw 33 is turned so that the four arc plates 32 move closer together. The spring-shaped rubber tube can be easily taken out from one end of the cylindrical mold formed by the four arc plates 32.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A two-stage vulcanization and shaping device for a spring-shaped rubber tube, comprising a vulcanizing tank (1), characterized in that: The vulcanizing tank (1) is provided with a support mechanism (2), which includes a movable support frame (21) and two auxiliary support plates (22) are hinged to the inner wall of the movable support frame (21). The movable support frame (21) is provided with four winding molds (3). The winding molds (3) include a hollow tube (31) rotatably connected to the inner wall of the movable support frame (21) and four arc-shaped plates (32) arranged in a circle. The hollow tube (31) can be rotatably inserted into the strip hole of the auxiliary support plate (22). The inner wall of the hollow tube (31) is rotatably connected to a bidirectional screw (33), and the outer surface of the bidirectional screw (33) is threadedly connected to two symmetrical threaded tubes (34). The outer surfaces of the two threaded tubes (34) are each fixed with four circumferentially arranged inclined slide rails (35). The multiple inclined slide rails (35) are slidably connected to the inner wall of the hollow tube (31). The outer surfaces of the four arc plates (32) are each fixed with two U-shaped rods (36), and the U-shaped rods (36) are slidably connected to the inclined sliding holes of the inclined slide rails (35). Each of the hollow tubes (31) is provided with a clamping mechanism (4) on its exterior. The clamping mechanism (4) includes a second L-shaped block (45) and a first L-shaped block (41) fixed on the outer surface of the arc plate (32). The vulcanizing tank (1) is provided with an auxiliary driving mechanism (5) on its exterior. The auxiliary driving mechanism (5) includes a movable U-shaped frame (51), an L-shaped moving frame (52), and an arc-shaped smoothing plate (53). The arc-shaped smoothing plate (53) is adapted to the arc-shaped plate (32).

2. The two-stage vulcanization and shaping device for a spring-shaped rubber tube according to claim 1, characterized in that: The upper surface of the movable support frame (21) is fixed with two sets of inclined plates (23). The positions of the two auxiliary support plates (22) correspond to the positions of the two sets of inclined plates (23). Each set of inclined plates (23) and auxiliary support plates (22) are slidably provided with a plug rod (24). The end of the plug rod (24) is provided with an anti-detachment clamp (25).

3. The two-stage vulcanization and shaping device for a spring-shaped rubber tube according to claim 1, characterized in that: Multiple telescopic rods (37) are fixed on the inner sides of the four arc-shaped plates (32) at equal intervals, and the ends of the multiple telescopic rods (37) away from the arc-shaped plates (32) are fixed on the outer surface of the hollow tube (31).

4. The two-stage vulcanization and shaping device for a spring-shaped rubber tube according to claim 1, characterized in that: A first guide rod (44) is fixed on the upper surface of the first L-shaped block (41). A first clamping block (42) is slidably connected to the outer surface of the first guide rod (44). The first clamping block (42) is slidably disposed inside the first L-shaped block (41). A first bolt (43) is slidably inserted inside the first clamping block (42). The bottom of the first bolt (43) is threadedly connected inside the first L-shaped block (41).

5. The two-stage vulcanization and shaping device for a spring-shaped rubber tube according to claim 1, characterized in that: A second guide rod (49) is fixed on the upper surface of the second L-shaped block (45). A second clamping block (46) is slidably connected to the outer surface of the second guide rod (49). The second clamping block (46) is slidably connected inside the second L-shaped block (45). A second bolt (48) is slidably inserted inside the second clamping block (46). The bottom end of the second bolt (48) is threaded inside the second L-shaped block (45).

6. The two-stage vulcanization and shaping device for a spring-shaped rubber tube according to claim 1, characterized in that: The bottom surface of the second L-shaped block (45) is fixed with a T-shaped slider (47), which can be slidably inserted into a slot opened at one end of the arc plate (32). The second L-shaped block (45) is connected to a third bolt (410) by an internal thread.

7. The two-stage vulcanization and shaping device for a spring-shaped rubber tube according to claim 1, characterized in that: The inner wall of the L-shaped moving frame (52) is fixed with a drive motor (54), and the output shaft end of the drive motor (54) is fixed with a snap-fit ​​seat (55), which is adapted to the hollow tube (31).

8. The two-stage vulcanization and shaping device for a spring-shaped rubber tube according to claim 1, characterized in that: The outer surface of the arc-shaped flat plate (53) is rotatably connected with a threaded rod (56). The threaded rod (56) passes through the L-shaped moving frame (52) and is threadedly connected to the L-shaped moving frame (52). The outer surface of the arc-shaped flat plate (53) is fixed with two sliding rods (57). Both sliding rods (57) pass through the L-shaped moving frame (52) and are slidably connected to the L-shaped moving frame (52).

9. The two-stage vulcanization and shaping device for a spring-shaped rubber tube according to claim 1, characterized in that: An electric push rod (510) is fixed on the upper surface of the movable U-shaped frame (51). The top end of the electric push rod (510) is fixed on the outer surface of the L-shaped movable frame (52). Two fixed rods (59) are fixed on the upper surface of the movable U-shaped frame (51). Sliding sleeves (58) are slidably connected to the outer surfaces of the two fixed rods (59). The two sliding sleeves (58) are fixed on the outer surface of the L-shaped movable frame (52).

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