High-strength composite leaf spring hot plastic die

Abstract

The application relates to a high-strength composite material plate spring hot-pressing mold which comprises an upper mold and a lower mold, an oil nozzle one is arranged on the upper mold, an oil nozzle two is arranged on the lower mold, a cover plate is hingedly connected in the oil nozzle one, an oil passing channel is arranged on the oil nozzle one, a transmission ring is rotationally connected to the oil nozzle one, a sliding block is slidably connected to the oil nozzle one, a protruding block is arranged on one side of the sliding block close to the transmission ring, an inclined surface is arranged on the transmission ring, a reset elastic piece is arranged on the oil nozzle one, and a transmission belt is tensioned outside a hinged shaft of the transmission ring and the cover plate. When the mold is not working, the oil outlet pipe on the oil temperature machine is moved away from the oil nozzle one, the reset elastic piece abuts against the transmission ring, the transmission ring reversely rotates and resets, the transmission ring drives the cover plate to reversely overturn through the transmission belt, the cover plate blocks the oil passing channel again, residual oil and air in the oil passing channel are separated, the situation that the heat conducting oil is polluted by impurities is reduced, the influence on heat conducting oil heat transfer circulation work is reduced, and the plate spring forming is facilitated.

Description

Technical Field

[0001] This application relates to the field of leaf spring molds, and more particularly to a thermoplastic mold for a high-strength composite leaf spring. Background Technology

[0002] Leaf springs are an important component of a car's suspension system. They are a spring system composed of multiple curved metal plates. During the operation of a car, they can reduce the impact load transmitted to the car body through the tires under uneven road conditions or different loads, alleviate vehicle vibration, and ensure the smoothness of the car's ride, the comfort of the driver and passengers, and extend the service life of related car components.

[0003] Traditionally, steel leaf springs are used as a buffer and shock absorption structure. However, steel leaf springs are particularly heavy, which increases the weight of the entire vehicle, thereby increasing fuel consumption and adversely affecting the vehicle's handling stability. In order to meet the requirements of large load capacity, low fuel consumption and good handling stability, leaf springs made of composite materials have been widely used.

[0004] In related technologies, the preparation steps of composite leaf springs are as follows: fiberglass cloth material is cut and stacked according to the product size, and then placed into the mold cavity for thermoplastic molding. The mold is equipped with a heating oil circuit, which is connected to an oil temperature machine to heat the mold. Special glass fiber reinforced mixed plastic is used in the spring structure to give the composite leaf spring higher strength. The use of the mold is the key to the leaf spring molding.

[0005] For example, the utility model patent with patent publication number CN212021351U discloses a leaf spring molding die, including a lower die and an upper die that are interlocked with each other, and the lower die and the upper die are movably connected by multiple guide pillars; multiple pads and multiple slide plates are provided on the top of the lower die; an oil circulation pipe is laid inside the lower die, and multiple heating pipes are connected to the oil circulation pipe, and the multiple heating pipes are evenly distributed inside the lower die; multiple ejector pillars connected to hydraulic cylinders are installed on the lower die.

[0006] When using the aforementioned leaf spring compression molding die, the heating pipe is not connected to the oil outlet pipe on the oil temperature controller when the die is not in operation, leaving it exposed to the air. However, residual oil from the previous operation remains in the heating pipe, which easily attracts dust from the air. When the die is used again, the heating pipe is reconnected to the oil outlet pipe on the oil temperature controller. The dust on the heating pipe can easily come into contact with the heat transfer oil and mix into it. The presence of dust and other impurities in the heat transfer oil will affect its heat transfer circulation and, in severe cases, may even cause equipment failure. This situation needs improvement. Summary of the Invention

[0007] To address the issue of dust accumulation in heating pipes with residual oil, this application provides a high-strength composite material leaf spring thermoplastic mold.

[0008] This application provides a high-strength composite material leaf spring thermoplastic mold, which adopts the following technical solution:

[0009] A high-strength composite material leaf spring thermoplastic mold includes an upper mold and a lower mold. The upper mold is provided with an oil nozzle one, and the lower mold is provided with an oil nozzle two. The structure of the oil nozzle two is the same as that of the oil nozzle one. A cover plate is hinged inside the oil nozzle one. An oil passage is opened on the oil nozzle one. The oil passage is used to connect to a heating oil circuit. The cover plate blocks the oil passage. A transmission ring is rotatably connected to the oil nozzle one. A slider is also slidably connected to the oil nozzle one. The slider is located on the side of the transmission ring away from the upper mold and slides closer to or away from the upper mold.

[0010] The slider has a protrusion on the side near the transmission ring. The transmission ring has an inclined surface that slopes away from the upper mold and away from the protrusion. The oil nozzle has a reset elastic element that abuts against the transmission ring, so that the inclined surface abuts against the protrusion. A transmission belt is tensioned on the outside of the hinge shaft between the transmission ring and the cover plate.

[0011] By adopting the above technical solution, when the mold is working, the oil outlet pipe on the oil temperature controller is moved closer to the first oil nozzle. The oil outlet pipe presses against the slider and pushes the slider to move closer to the upper mold. The slider drives the protrusion to press against the inclined surface, thereby pushing the transmission ring to rotate. The transmission ring drives the cover plate to flip through the transmission belt, causing the cover plate to disengage from the oil passage. At this time, the oil temperature controller is turned on, and the heat transfer oil enters the oil passage through the oil outlet pipe, and then enters the heating oil circuit to heat the mold. When the mold is not working, the oil outlet pipe on the oil temperature controller is removed from the first oil nozzle, and the reset elastic element presses against the transmission ring, causing the transmission ring to rotate in the opposite direction and reset. The transmission ring drives the cover plate to flip in the opposite direction through the transmission belt, causing the cover plate to block the oil passage again, so as to separate the residual oil and air in the oil passage, reduce the absorption of dust from the air by the residual oil in the oil passage, and thus reduce the contamination of the heat transfer oil by impurities, reduce the impact on the heat transfer oil heat transfer circulation, and benefit the leaf spring molding.

[0012] Optionally, an oil pipe is slidably connected within the oil passage. The oil pipe is located on the side of the cover plate near the upper mold and slides closer to or away from the upper mold. An elastic element is provided inside the oil nozzle. The elastic element abuts against the oil pipe, so that the oil pipe tends to extend out of the oil passage.

[0013] A connecting block is slidably connected inside the first oil nozzle. The connecting block slides closer to or away from the cover plate. An elastic element two is provided inside the first oil nozzle. The elastic element two abuts against the connecting block, causing the connecting block to tend to move closer to the cover plate. An insert block is slidably connected to the connecting block. The insert block slides closer to or away from the oil passage. A slide rail is provided inside the first oil nozzle. The slide rail is inclined towards the upper mold in the direction of approaching the oil passage. The insert block extends into the slide rail. A guide surface is provided on the insert block. The guide surface is located at the end of the insert block near the cover plate and at the side of the insert block near the oil passage. The guide surface is inclined towards the upper mold in the direction of approaching the oil passage.

[0014] The cover plate has a slot for the insert block to be inserted. When the insert block is located at one end of the slide near the oil passage, the cover plate is located on the side of the oil passage pipe away from the upper mold and extends into the oil passage pipe. The insert block is provided with a connecting strip, which is connected to the oil passage pipe. When the insert block moves closer to the oil passage pipe, the oil passage pipe moves closer to the upper mold.

[0015] By adopting the above technical solution, when the cover plate flips away from the oil passage, the cover plate abuts against the guide surface and pushes the insert block and connecting block to move away from the cover plate until the slot and the insert block are aligned. Under the action of the second elastic element, the insert block is inserted into the slot. At this time, the cover plate and the oil passage are misaligned. Under the action of the first elastic element, the oil pipe slides out of the oil passage and is inserted into the oil outlet pipe. The heat transfer oil flows through the oil pipe and then enters the oil passage.

[0016] When the oil outlet pipe is removed from the oil nozzle and the cover plate is flipped in the opposite direction, the cover plate abuts against the insert block through the inner wall of the slot, pushing the insert block to move closer to the oil passage. At the same time, the inner wall of the slide abuts against the insert block, pushing the insert block and the connecting block to move away from the cover plate, so that the insert block gradually moves away from the bottom of the slot. The insert block pulls the oil passage pipe to move closer to the upper mold through the connecting strip. When the insert block is located at one end of the slide near the oil passage, the cover plate is located on the side of the oil passage pipe away from the upper mold and extends into the oil passage. The insert block disengages from the slot, and the oil passage pipe presses against the cover plate under the action of the first elastic element. The insert block moves in the opposite direction under the action of the second elastic element to the end of the slide away from the oil passage. Since the heat transfer oil enters the oil passage through the oil passage pipe, most of the oil remains on the oil passage pipe, thereby reducing the oil residue on the side of the oil passage pipe away from the upper mold, and further reducing dust adsorption.

[0017] Optionally, the oil passage pipe has a through groove, and the outer wall of the oil passage pipe has an annular groove. The oil passage pipe has an elastic ring plate located in the annular groove. The end of the elastic ring plate away from the upper mold is connected to the oil passage pipe. Several pull ropes are threaded through the oil passage pipe and distributed around the outer periphery of the oil passage pipe. The pull ropes are located on the side of the elastic ring plate away from the upper mold and are connected to the elastic ring plate. The end of the pull rope away from the elastic ring plate extends into the through groove. The pull rope has a baffle located in the through groove and is connected to the several pull ropes.

[0018] By adopting the above technical solution, when the oil pipe is inserted into the oil outlet pipe and the heat transfer oil flows through the through groove, the heat transfer oil impacts the baffle, causing the baffle to move closer to the upper mold. The baffle drives several pull ropes to pull the elastic rings to open away from the oil pipe, so that the elastic rings press against the inner circumferential wall of the oil outlet pipe. This reduces the leakage of heat transfer oil from the gap between the oil outlet pipe and the oil pipe, reduces the loss of heat transfer oil, and achieves the effect of preventing oil spillage.

[0019] Optionally, the transmission belt is provided with a plurality of locking blocks, which are evenly spaced along the length of the transmission belt. The outer side wall of the transmission ring is provided with a plurality of locking grooves I, and the outer side wall of the hinge shaft of the cover plate is provided with a plurality of locking grooves II. Both locking grooves I and locking grooves II are for the locking blocks to be engaged.

[0020] By adopting the above technical solution, a first slot, a second slot, and a locking block are set up. The locking block abuts against the inner wall of the first / second slot, which reduces the slippage between the transmission ring and the transmission belt, as well as between the hinge shaft of the cover plate and the transmission belt, thereby improving the stability of the transmission between the transmission belt, the transmission ring, and the hinge shaft of the cover plate.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. When the mold is not working, remove the oil outlet pipe from the oil nozzle on the oil temperature controller, reset the elastic element to press against the transmission ring, so that the transmission ring rotates in the opposite direction and resets. The transmission ring drives the cover plate to flip in the opposite direction through the transmission belt, so that the cover plate blocks the oil passage again, so as to separate the residual oil and air in the oil passage, which can reduce the contamination of the heat transfer oil by impurities, reduce the impact on the heat transfer circulation of the heat transfer oil, and is beneficial to the forming of leaf springs;

[0023] 2. The heat transfer oil enters the oil passage through the oil pipe. Therefore, most of the oil remains on the oil pipe, which reduces the amount of oil remaining on the side of the oil passage away from the upper mold on the cover plate, and further reduces dust adsorption.

[0024] 3. When the oil pipe is inserted into the oil outlet pipe and the heat transfer oil flows through the through groove, the heat transfer oil impacts the baffle, causing the baffle to move closer to the upper mold. The baffle drives several connecting strips to pull the elastic rings open away from the oil pipe, so that the elastic rings press against the inner circumferential wall of the oil outlet pipe. This reduces the leakage of heat transfer oil from the gap between the oil outlet pipe and the oil pipe, reduces the loss of heat transfer oil, and achieves the effect of preventing oil spillage. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of an embodiment of this application.

[0026] Figure 2 This is a partial cross-sectional view of the oil nozzle in an embodiment of this application, mainly showing the structure of the inclined surface.

[0027] Figure 3 This is a partial cross-sectional view of an embodiment of this application, mainly showing the structure of the oil pipe.

[0028] Figure 4 for Figure 3 The enlarged view of section A mainly shows the structure of the elastic ring and the pull rope.

[0029] Figure 5 This is an exploded view of a portion of the oil nozzle in an embodiment of this application, mainly showing the structure of the insert, the second elastic element, and the connecting strip.

[0030] Figure 6 This is a partial structural diagram of an embodiment of this application, mainly showing the structure of the slot.

[0031] Explanation of reference numerals in the attached drawings: 1. Upper mold; 2. Lower mold; 3. Oil nozzle one; 31. Oil passage; 32. Receiving cavity; 33. Relief groove; 34. Mounting groove; 35. Slide rail; 4. Oil nozzle two; 5. Cover plate; 51. Slot two; 52. Slot; 6. Transmission ring; 61. Slot one; 7. Slider; 8. Protrusion; 9. Inclined surface; 10. Reset elastic element; 11. Transmission belt; 12. Locking block; 13. Oil passage pipe; 131. Sliding part; 132. Limiting part; 14. Through groove; 15. Ring groove; 16. Elastic ring piece; 17. Pull rope; 18. Baffle; 19. Elastic element one; 20. Connecting block; 21. Elastic element two; 22. Insert block; 221. Insertion part; 222. Extension part; 23. Guide surface; 24. Connecting strip. Detailed Implementation

[0032] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0033] This application discloses a thermoplastic mold for a high-strength composite leaf spring. See also... Figure 1The high-strength composite material leaf spring thermoplastic mold includes an upper mold 1 and a lower mold 2. The upper mold 1 is located above the lower mold 2. Several oil nozzles 3 are fixed on the upper mold 1. The oil nozzles 3 are located on the same side of the upper mold 1 and are distributed at intervals along the length of the upper mold 1. Several oil nozzles 4 are fixed on the lower mold 2. The oil nozzles 4 are located on the side of the lower mold 2 close to the oil nozzles 3. The number and position of the oil nozzles 4 correspond one-to-one with the number and position of the oil nozzles 3. The structure of the oil nozzles 4 is the same as that of the oil nozzles 3.

[0034] See Figure 2 and Figure 3 Each oil nozzle 3 has an oil passage 31 on its end face away from the upper mold 1. The oil passage 31 is used to connect the heating oil circuit. Each oil nozzle 3 has a receiving cavity 32, which is connected to the oil passage 31. Each oil nozzle 3 also has a cover plate 5 hinged inside. The cover plate 5 is located inside the receiving cavity 32 and blocks the oil passage 31. The hinge axis of the cover plate 5 is set horizontally.

[0035] See Figure 2 and Figure 3 Each nozzle 3 is rotatably connected to a transmission ring 6. The transmission ring 6 is located on the side of the cover plate 5 away from the upper mold 1, and the rotation axis of the transmission ring 6 is parallel to the hinge axis of the cover plate 5. Each nozzle 3 is also slidably connected to a slider 7. The slider 7 is located on the side of the transmission ring 6 away from the upper mold 1 and slides closer to or away from the upper mold 1. The sliding direction of the slider 7 is parallel to the rotation axis of the transmission ring 6. A protrusion 8 is fixed on the side of the slider 7 near the transmission ring 6. An inclined surface 9 is machined on the outer wall of the transmission ring 6. The inclined surface 9 is located on the side of the transmission ring 6 near the protrusion 8 and is inclined away from the protrusion 8 in the direction away from the upper mold 1. Each nozzle 3 is fixed with a reset elastic element 10. The reset elastic element 10 is located on the side of the transmission ring 6 near the cover plate 5 and is fixedly connected to the transmission ring 6. The reset elastic element 10 abuts against the transmission ring 6, so that the inclined surface 9 abuts against the protrusion 8. In this embodiment, the reset elastic element 10 is a spring.

[0036] See Figure 2 A transmission belt 11 is tensioned on the outside of the hinge shaft of the transmission ring 6 and the cover plate 5. Several locking blocks 12 are fixed on the transmission belt 11. The locking blocks 12 are located in the area enclosed by the transmission belt 11 and are evenly spaced along the length of the transmission belt 11. Several locking grooves 61 are evenly spaced on the outer wall of the transmission ring 6. Several locking grooves 51 are evenly spaced on the outer wall of the hinge shaft of the cover plate 5. Both locking grooves 61 and 51 are for the locking blocks 12 to be engaged.

[0037] See Figure 1 and Figure 3An allowance groove 33 is provided on the inner wall of the oil passage 31. The allowance groove 33 is arranged around the outer periphery of the oil passage groove 14. An oil pipe 13 is slidably connected in the oil passage 31. The oil pipe 13 is located on the side of the cover plate 5 near the upper mold 1. The oil pipe 13 includes a sliding part 131 and a limiting part 132. The sliding part 131 is slidably connected in the oil passage 31 and slides closer to or away from the upper mold 1. The limiting part 132 is fixed to the side of the sliding part 131 near the upper mold 1 and is slidably connected in the allowance groove 33. A through groove 14 is provided on the end face of the oil pipe 13 away from the upper mold 1. The through groove 14 passes through the oil pipe 13 along the sliding direction of the sliding part 131.

[0038] See Figure 1 and Figure 4 An annular groove 15 is provided on the outer wall of the sliding part 131. The annular groove 15 surrounds the outer periphery of the sliding part 131. An elastic ring plate 16 is fixed on the sliding part 131. The elastic ring plate 16 is located in the annular groove 15 and surrounds the outer periphery of the through groove 14. The end of the elastic ring plate 16 away from the upper mold 1 is fixedly connected to the sliding part 131. Several pull ropes 17 are threaded through the oil pipe 13. The pull ropes 17 are evenly distributed around the outer periphery of the sliding part 131 in a circumferential direction. Each pull rope 17 is located on the side of the elastic ring plate 16 away from the upper mold 1 and is fixedly connected to the elastic ring plate 16. The end of each pull rope 17 away from the elastic ring plate 16 extends into the through groove 14. A baffle 18 is fixed on the pull rope 17. The baffle 18 is located in the through groove 14 and is fixedly connected to the pull ropes 17. In this embodiment, the elastic ring plate 16 is made of silicone.

[0039] See Figure 1 and Figure 3 Each oil nozzle 3 has an elastic element 19 fixed inside. The elastic element 19 is located in the relief groove 33 and on the side of the limiting part 132 near the upper mold 1. The opposite ends of the elastic element 19 are fixedly connected to the inner wall of the limiting part 132 and the relief groove 33 near the upper mold 1, respectively. The elastic element 19 abuts against the limiting part 132, so that the sliding part 131 has a tendency to extend out of the oil passage 31. In this embodiment, the elastic element 19 is a spring.

[0040] See Figure 1 and Figure 5 Each receiving cavity 32 has a mounting groove 34 on its inner wall near the upper mold 1, and a slide 35 is provided on the inner wall of the mounting groove 34. The slide 35 faces the oil passage 31 (see...). Figure 2 The direction of the nozzle is inclined towards the upper mold 1, and each nozzle 3 is also slidably connected to a connecting block 20. The connecting block 20 is located in the mounting groove 34 and slides towards or away from the cover plate 5 (see Figure 2Each oil nozzle 3 is also fixed with several elastic elements 21. The elastic elements 21 are located on the side of the connecting block 20 near the upper mold 1 and are evenly spaced along the length of the connecting block 20. The opposite ends of each elastic element 21 are fixedly connected to the inner wall of the bottom of the mounting groove 34 and the connecting block 20, respectively. The elastic elements 21 press against the connecting block 20, so that the connecting block 20 tends to move closer to the cover plate 5. In this embodiment, the elastic element 21 is a spring.

[0041] See Figure 2 and Figure 5 A plug 22 is slidably connected to the connecting block 20. The plug 22 includes an insertion part 221 and an extension part 222. The insertion part 221 is located on the side of the connecting block 20 near the cover plate 5 and slides close to or away from the oil passage 31. A slide rail is fixed on the outer side wall of the connecting block 20 near the insertion part 221. The length direction of the slide rail is parallel to the sliding direction of the insertion part 221. A groove for accommodating the slide rail is provided on the insertion part 221. The slide rail slides along the sliding direction of the insertion part 221 and is connected to the groove. The insertion part 221 is slidably connected to the connecting block 20 through the cooperation of the groove and the slide rail. The extension part 222 extends into the slide channel 35, and the extension part 222 and the insertion part 221 are fixedly connected.

[0042] See Figure 2 and Figure 5 A guide surface 23 is machined on the outer wall of the insertion part 221. The guide surface 23 is located at one end of the insertion part 221 near the cover plate 5 and on the side of the insertion part 221 near the oil passage 31. The guide surface 23 is inclined towards the upper mold 1 in the direction of approaching the oil passage 31 (see...). Figure 1 A connecting strip 24 is fixed to the side of the insertion part 221 away from the oil passage 31. The end of the connecting strip 24 away from the insertion part 221 passes through the oil nozzle 3 and extends into the relief groove 33. The end of the connecting strip 24 away from the insertion part 221 is fixedly connected to the limiting part 132. When the insertion part 221 moves closer to the oil passage 31, the sliding part 131 moves closer to the upper mold 1 (see...). Figure 1 In this embodiment, the connecting strip 24 is made of nylon.

[0043] See Figure 5 and Figure 6 Cover plate 5 is close to upper mold 1 (see Figure 1 A slot 52 is provided on the outer wall of the slide 35, into which the insertion part 221 is inserted. When the insertion part 222 is located near the oil passage 31 in the slide 35 (see... Figure 2 When at one end of the slide portion 131, the cover plate 5 is located in the sliding portion 131 (see...). Figure 2 ) away from the upper mold 1 (see Figure 1 (See) one side and extends into the oil passage 31 (see) Figure 2 )Inside.

[0044] The implementation principle of a high-strength composite material leaf spring thermoplastic mold in this application embodiment is as follows:

[0045] When the mold is working, the oil outlet pipe on the oil temperature machine is moved closer to the oil nozzle 3. The oil outlet pipe presses against the slider 7 and pushes the slider 7 to move closer to the upper mold 1. The slider 7 drives the protrusion 8 to press against the inclined surface 9, which in turn drives the transmission ring 6 to rotate. The transmission ring 6 drives the cover plate 5 to flip through the transmission belt 11, so that the cover plate 5 is separated from the oil passage 31. At the same time, the cover plate 5 abuts against the guide surface 23 and pushes the insert block 22 and the connecting block 20 to move away from the cover plate 5 until the slot 52 and the insertion part 221 are aligned. The insertion part 221 is inserted into the slot 52 under the action of the elastic element 21. At this time, the cover plate 5 and the oil passage 31 are misaligned. The sliding part 131 slides out of the oil passage 31 under the action of the elastic element 19 and is inserted into the oil outlet pipe. Then, the oil temperature machine is turned on, and the heat-conducting oil flows through the oil pipe 13 and then into the oil passage 31, and then into the heating oil circuit to heat the mold.

[0046] The heat transfer oil impacts the baffle 18, causing the baffle 18 to move closer to the upper mold 1. The baffle 18 drives several pull ropes 17 to pull the elastic ring 16 to deform and open in a direction away from the oil pipe 13, so that the elastic ring 16 presses against the inner circumferential wall of the oil outlet pipe, which can reduce the leakage of heat transfer oil from the gap between the oil outlet pipe and the sliding part 131.

[0047] When the mold is not working, the oil outlet pipe on the oil temperature machine is removed from the oil nozzle 3, and the reset elastic element 10 is pressed against the transmission ring 6, so that the transmission ring 6 rotates in the opposite direction and resets. The transmission ring 6 drives the cover plate 5 to flip in the opposite direction through the transmission belt 11. The cover plate 5 abuts against the insertion part 221 through the inner wall of the slot 52, pushing the insertion part 221 to move closer to the oil passage 31. The inner wall of the slide 35 abuts against the extension part 222, pushing the insertion part 221 and the connecting block 20 to move away from the cover plate 5, so that the insertion part 221 gradually moves away from the bottom of the slot 52, and the insertion part 221 pulls the sliding part 131 to move closer to the upper mold 1 through the connecting strip 24.

[0048] When the insertion part 221 is located at one end of the slide 35 near the oil passage 31, the cover plate 5 is located on the side of the oil passage pipe 13 away from the upper mold 1 and extends into the oil passage 31. The insertion part 221 disengages from the slot 52. The sliding part 131 presses against the cover plate 5 under the action of the elastic element 19. The insertion part 221 moves in the opposite direction to the end of the slide 35 away from the oil passage 31 under the action of the elastic element 21, so that the cover plate 5 blocks the oil passage 31 again. Since the heat transfer oil enters the oil passage 31 through the oil passage pipe 13, most of the oil remains on the oil passage pipe 13. The cover plate 5 separates the oil remaining in the oil passage 31 from the air, reducing the amount of dust adsorbed by the oil remaining in the oil passage 31. This reduces the contamination of the heat transfer oil by impurities, reduces the impact on the heat transfer circulation of the heat transfer oil, and is beneficial to the forming of the leaf spring.

[0049] 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 high-strength composite material leaf spring thermoplastic mold, comprising an upper mold (1) and a lower mold (2), wherein the upper mold (1) is provided with an oil nozzle one (3) and the lower mold (2) is provided with an oil nozzle two (4), wherein the structure of the oil nozzle two (4) is the same as that of the oil nozzle one (3), characterized in that: A cover plate (5) is hinged inside the first oil nozzle (3). An oil passage (31) is opened on the first oil nozzle (3). The oil passage (31) is used to connect the heating oil circuit. The cover plate (5) blocks the oil passage (31). A transmission ring (6) is rotatably connected to the first oil nozzle (3). A slider (7) is also slidably connected to the first oil nozzle (3). The slider (7) is located on the side of the transmission ring (6) away from the upper mold (1) and slides closer to or away from the upper mold (1). The slider (7) has a protrusion (8) on the side near the transmission ring (6). The transmission ring (6) has an inclined surface (9) that is inclined away from the upper mold (1) and away from the protrusion (8). The oil nozzle (3) has a reset elastic element (10) that abuts against the transmission ring (6) so that the inclined surface (9) abuts against the protrusion (8). A transmission belt (11) is tensioned on the outside of the hinge shaft of the transmission ring (6) and the cover plate (5).

2. The high-strength composite material leaf spring thermoplastic mold according to claim 1, characterized in that: An oil pipe (13) is slidably connected inside the oil passage (31). The oil pipe (13) is located on the side of the cover plate (5) close to the upper mold (1) and slides close to or away from the upper mold (1). An elastic element (19) is provided inside the oil nozzle (3). The elastic element (19) abuts against the oil pipe (13), so that the oil pipe (13) tends to extend out of the oil passage (31). A connecting block (20) is slidably connected inside the first oil nozzle (3). The connecting block (20) slides closer to or away from the cover plate (5). An elastic element (21) is provided inside the first oil nozzle (3). The elastic element (21) abuts against the connecting block (20), causing the connecting block (20) to tend to move closer to the cover plate (5). An insert (22) is slidably connected to the connecting block (20). The insert (22) slides closer to or away from the oil passage (31). A sliding channel is opened inside the first oil nozzle (3). The slide (35) is inclined toward the upper mold (1) in the direction of the oil passage (31). The insert (22) extends into the slide (35). The insert (22) is provided with a guide surface (23). The guide surface (23) is located at one end of the insert (22) near the cover plate (5) and on the side of the insert (22) near the oil passage (31). The guide surface (23) is inclined toward the upper mold (1) in the direction of the oil passage (31). The cover plate (5) has a slot (52) for the insertion block (22) to be inserted. When the insertion block (22) is located at one end of the slide (35) near the oil passage (31), the cover plate (5) is located on the side of the oil passage pipe (13) away from the upper mold (1) and extends into the oil passage pipe (31). The insertion block (22) has a connecting strip (24) connected to the oil passage pipe (13). When the insertion block (22) moves closer to the oil passage pipe (31), the oil passage pipe (13) moves closer to the upper mold (1).

3. The high-strength composite material leaf spring thermoplastic mold according to claim 2, characterized in that: The oil passage pipe (13) has a through groove (14) inside, and an annular groove (15) is formed on the outer wall of the oil passage pipe (13). An elastic ring plate (16) is provided on the oil passage pipe (13), and the elastic ring plate (16) is located in the annular groove (15). The end of the elastic ring plate (16) away from the upper mold (1) is connected to the oil passage pipe (13). Several pull ropes (17) are threaded through the oil passage pipe (13). The pull ropes (17) are distributed around the outer periphery of the oil pipe (13), and the pull ropes (17) are located on the side of the elastic ring (16) away from the upper mold (1) and connected to the elastic ring (16). One end of the pull rope (17) away from the elastic ring (16) extends into the through groove (14). The pull rope (17) is provided with a baffle (18), which is located in the through groove (14) and connected to several pull ropes (17).

4. The high-strength composite material leaf spring thermoplastic mold according to claim 3, characterized in that: The transmission belt (11) is provided with a plurality of locking blocks (12), which are evenly spaced along the length of the transmission belt (11). The outer side wall of the transmission ring (6) is provided with a plurality of locking grooves (61) in the circumferential direction, and the outer side wall of the hinge shaft of the cover plate (5) is provided with a plurality of locking grooves (51) in the circumferential direction. Both the locking grooves (61) and the locking grooves (51) are for the locking blocks (12) to be engaged.

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