An efficient die-casting mold for integrally forming a bicycle frame

Abstract

The embodiment of the present invention discloses an efficient die-casting mold for integrally forming a bicycle frame, which belongs to the technical field of bicycle frame production. The die-casting mold includes a base, a die-casting machine body, and a die-casting cooling device. The die-casting machine body is arranged on the top of the base, and the die-casting cooling device is arranged on one side of the top of the die-casting machine body. A molding mechanism is arranged on one side of the die-casting machine body and located on the top of the base. The present invention changes the position of multiple support frames through the corresponding coordinated use of various structures to achieve the function of mold changing, so that the device can realize the one-time processing of multiple frames, facilitate the molding of raw materials, increase the efficiency of raw material molding, increase the frame yield, realize the linkage operation of die-casting, cooling and transmission, and can effectively save the cooling time of the material after die-casting, thereby improving the production efficiency of the equipment and increasing the production capacity. At the same time, it makes the material more convenient and easy to use when demolding.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of bicycle frame production, and in particular to an efficient die-casting mold for integrally forming a bicycle frame. Background Art

[0002] In today's society, bicycles are not only a green means of transportation but also a form of exercise and fitness equipment. Bicycles are widely used in people's daily lives and have many advantages, such as being environmentally friendly, easy to use, and good for the body. The frame, as the skeleton of the entire bicycle, is an important key component of the bicycle. It plays a vital role in the overall quality of the bicycle and largely determines and affects the correctness and comfort of the riding posture. With the advancement of science and technology, bicycle frames are also undergoing improvements and innovations. In order to make the frame lighter, stronger, more comfortable, and more streamlined and beautiful, while improving the strength of the connecting pipes, innovating the structural design, and innovating the materials, the production and processing technology should also be innovated. However, in addition to considering the weight, the bicycle frame must also consider the mechanical tensile strength, elastic modulus, load-bearing capacity, etc.

[0003] Patent application publication number CN 112570683 A discloses a die-casting mold for integrally forming a bicycle frame, comprising a fixed mold, a movable mold, a first core-pulling device, a second core-pulling device, and a third core-pulling device. The fixed mold comprises a fixed mold frame plate and a fixed mold core plate, the movable mold comprises a movable mold frame plate and a movable mold core plate, the first core-pulling device comprises a first hydraulic core puller and a lower beam rear fork core, the second core puller comprises a second hydraulic core puller and a head tube core, and the third core puller comprises a third hydraulic core puller and a seat tube core. The present invention has a simple and novel structure, can integrally form a die-cast bicycle frame, has high production efficiency, and the integrally formed die-cast frame has high overall mechanical strength and an attractive appearance.

[0004] However, the above technical solution is relatively simple when used, and it is difficult to process multiple frames at one time, which is likely to reduce the production efficiency of the device. In addition, the die-casting machine needs to spend a certain amount of time to cool down the frame after die-casting, which will undoubtedly increase the die-casting production time of the frame again and reduce production capacity. Summary of the Invention

[0005] To this end, an embodiment of the present invention provides an efficient die-casting mold for integrally forming a bicycle frame to solve the problem in the prior art that the die-casting mold is relatively simple to use, making it difficult to process multiple frames at one time, and reducing production capacity due to the time required for die-casting production of the frames.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: an efficient die-casting mold for integrally forming a bicycle frame, comprising a base, a die-casting machine body, and a die-casting cooling device, wherein the die-casting machine body is disposed on top of the base, and the die-casting cooling device is disposed on one side of the top of the die-casting machine body; a molding mechanism is disposed on one side of the die-casting machine body and located on the top of the base;

[0007] The molding mechanism includes a support plate arranged on the top of the die-casting machine body, a plurality of support frames are distributed on the top of the support plate and along the circumference of the axis point of the support plate, and a push pin assembly is provided on the support frame;

[0008] A support plate, the support plate is arranged on the top of the support frame, and two slide rails are fixedly provided on the top of the support plate;

[0009] The support frame of the skateboard is arranged on the top of the support plate and is located between two slide rails. The skateboard is slidably connected to the slide rails, and a clamping mold assembly is arranged on the top of the skateboard.

[0010] Furthermore, the clamping mold assembly includes:

[0011] A first template, the first template is arranged on the top of the slide, the upper surface of the first template is provided with a first mold groove, and a second mold groove is provided on one side of the surface of the first mold groove;

[0012] The second template, the first template is arranged on the top of the first template, the top of the second template is penetrated with a first installation frame opening, the surface side of the first installation frame opening is penetrated with a second installation frame opening, the first installation frame opening and the second installation frame opening are respectively connected to the first mold groove and the second mold groove.

[0013] Furthermore, the clamping mold assembly also includes modules, and the number of the modules is set to be multiple. The multiple modules are respectively arranged in the first installation frame opening and the second installation frame opening relative to each other in groups of two, and a mold cavity is formed between two adjacent modules.

[0014] Furthermore, the clamping assembly also includes a pressure plate, which is arranged on one side of the surface of the second template. A first transition port is opened through the surface of the pressure plate, and a second transition port is opened through one side of the surface of the first transition port. The first transition port and the second transition port are respectively matched with the mold cavities in the first installation frame port and the second installation frame port.

[0015] Further, the ejector pin assembly includes:

[0016] A hydraulic assembly, wherein the number of the hydraulic assemblies is set to be multiple, and the multiple hydraulic assemblies are respectively distributed along the circumference of the axis point of the support plate at the bottom of the inner wall of the support frame;

[0017] A reinforcing plate, the reinforcing plate being arranged on the top of the hydraulic assembly, and the output end of the hydraulic assembly being connected to the reinforcing plate;

[0018] The number of the push rods is set to be multiple, and the multiple push rods are respectively arranged at the four corners of the top of the reinforcement plate. The outside of the push rod and the top of the reinforcement plate are sleeved with a limiting ring that matches the push rod.

[0019] Furthermore, a slide groove is provided at the bottom of the support plate, and a plurality of sliding blocks respectively matching the slide groove are slidably connected to the inner wall of the slide groove, and the bottom of the sliding block is fixedly connected to the base, and a driving motor for driving the support plate to rotate is provided at the bottom of the support plate.

[0020] Furthermore, a positioning pin is provided at the top of the push rod, wherein the upper surface of the support plate is penetrated with a plurality of second push pin holes respectively matching the positioning pins, and the top of the first template is penetrated with a plurality of first push pin holes respectively on the same axial line as the second push pin holes, and one end of the positioning pin passes through the second push pin hole and the first push pin hole in sequence and extends to the bottom of the second template to be plugged into the second template.

[0021] Furthermore, a plurality of hinges are provided between the pressure plate and the second template, and the pressure plate and the second template are hingedly connected by the hinges. A plurality of limiting holes located on the same axis are provided on both sides of the top surface of the pressure plate and the second template.

[0022] The embodiments of the present invention have the following advantages:

[0023] 1. The present invention firstly provides a forming mechanism, and the forming mechanism can change the position of multiple support frames by rotating the support plate to realize the function of mold change. The slide groove and the sliding top block cooperate with each other to guide and limit the rotation trajectory of the support plate, thereby increasing the stability of the support plate during rotation. In addition, the provision of multiple sliding top blocks further increases the load-bearing capacity of the support plate, so that the device can process multiple frames at one time, realize the die-casting, cooling and transmission linkage operation, effectively save the cooling time of the material after die-casting, and then improve the production efficiency of the equipment and increase the production capacity.

[0024] 2. The present invention can buckle the pressure plate and the second template together, and then position the pressure plate and the second template through the axis pin, so that the raw material can be injected into the first mold groove, the second mold groove, the first installation frame opening and the second installation frame opening, and then can be formed through the outer side of the module and the inner wall of the mold cavity, which facilitates the molding of the raw material, increases the efficiency of the raw material molding, and increases the yield rate of the frame;

[0025] 3. The output end of the hydraulic assembly of the present invention drives the reinforcing plate to move upward, and when the reinforcing plate moves upward, it simultaneously drives multiple ejector pins to move upward, and the positioning pins penetrate the second ejector pin hole and the first ejector pin hole and extend to the bottom of the second template, thereby lifting the second template upward, so that the second template and the first template can be demoulded, which is convenient for the staff to take out the materials later and makes the demoulding of the materials more convenient;

[0026] To sum up, through the corresponding coordination of various structures, the positions of multiple support frames are changed, and the mold changing function is realized, so that the device can process multiple frames at one time, facilitate the molding of raw materials, increase the efficiency of raw material molding, increase the frame yield, and realize the linkage operation of die casting, cooling and transmission, which can effectively save the cooling time of materials after die casting, thereby improving the production efficiency of the equipment, increasing production capacity, and making the material more convenient and easy to use when demolding. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other implementation drawings based on the provided drawings without inventive effort.

[0028] The structures, proportions, sizes, etc. illustrated in this specification are intended only to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in sizes, without affecting the efficacy and objectives of the present invention, shall still fall within the scope of the technical contents disclosed herein.

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a side view of the overall structure of the present invention;

[0031] Figure 3 It is a bottom view of the overall structure of the present invention;

[0032] Figure 4 It is a front view of the forming mechanism of the present invention;

[0033] Figure 5 A top view of the molding mechanism of the present invention;

[0034] Figure 6 An exploded view of the clamping die assembly of the present invention;

[0035] Figure 7 It is a front view of the ejector pin assembly of the present invention;

[0036] Figure 8 For the present invention Figure 1 Schematic diagram of the local structure at point A in the middle.

[0037] In the figure: 1. base; 2. die-casting machine body; 3. die-casting cooling device; 4. support plate; 5. support frame; 6. pallet; 7. slide rail; 8. slide plate; 9. first template; 10. second template; 11. first die groove; 12. second die groove; 13. first mounting frame opening; 14. second mounting frame opening; 15. module; 16. die cavity; 17. pressure plate; 18. first transition opening; 19. second transition opening; 20. hinge; 21. hydraulic assembly; 22. reinforcement plate; 23. ejector rod; 24. slide groove; 25. ejector block; 26. drive motor; 27. first ejector pin hole; 28. second ejector pin hole; 29. limit ring; 30. limit hole. DETAILED DESCRIPTION

[0038] The following describes the implementation of the present invention using specific embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. Obviously, the embodiments described are only a portion of the present invention, not all of it. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0039] Refer to the instruction manual Figure 1-8 The die-casting mold for an efficient one-piece forming of a bicycle frame shown in the figure includes a base 1, a die-casting machine body 2 and a die-casting cooling device 3. The die-casting machine body 2 is arranged on the top of the base 1, and the die-casting cooling device 3 is arranged on one side of the top of the die-casting machine body 2. A molding mechanism is arranged on one side of the die-casting machine body 2 and located on the top of the base 1.

[0040] The molding mechanism includes a support plate 4 arranged on the top of the die-casting machine body 2. A plurality of support frames 5 are distributed on the top of the support plate 4 and along the circumference of the axis point of the support plate 4. The support frames 5 are provided with ejector pin assemblies.

[0041] The supporting plate 6 is arranged on the top of the supporting frame 5 , and two slide rails 7 are fixedly arranged on the top of the supporting plate 6 .

[0042] The slide plate 8 and the slide plate 8 support frame 5 are arranged on the top of the support plate 6 and are located between the two slide rails 7. The slide plate 8 is slidably connected to the slide rails 7, and a clamping mold assembly is provided on the top of the slide plate 8.

[0043] The specific implementation scenarios are:

[0044] First, the staff installs the device made by the present invention at the designated position. When in use, the support plate 4 is rotated to rotate one of the multiple support frames 5 to the die-casting machine body 2, and the die-casting machine body 2 is started. Die-casting is performed through the die-casting cooling device 3, and the raw material is formed through the clamping die assembly. Then, it is first cooled and cooled by the die-casting machine body 2. At the same time, after the frame is formed, the clamping die assembly is opened, and then the ejector pin assembly is started to eject the formed frame.

[0045] Refer to the attached Figure 4 、 5 , 6, 7, and 8, the clamping die assembly includes:

[0046] A first template 9 is provided on the top of the slide plate 8. A first mold groove 11 is provided on the upper surface of the first template 9. A second mold groove 12 is provided on one side of the surface of the first mold groove 11.

[0047] A second template 10 is provided on top of the first template 9. A first mounting frame opening 13 is formed through the top of the second template 10. A second mounting frame opening 14 is formed through one side of the surface of the first mounting frame opening 13. The first mounting frame opening 13 and the second mounting frame opening 14 are respectively connected to the first mold groove 11 and the second mold groove 12.

[0048] The first die groove 11 and the second die groove 12 can both play a role in limiting the raw materials during die casting, making it convenient for the raw materials to be injected into the first die groove 11 and the second die groove 12. At the same time, through the mutual cooperation of the first installation frame opening 13 and the second installation frame opening 14, the first installation frame opening 13 and the second installation frame opening 14 are respectively connected to the first die groove 11 and the second die groove 12, which facilitates the molding of the raw materials.

[0049] Refer to the attached Figure 4 、 5 As shown in Figures 6 and 8, the clamping mold assembly also includes a module 15. The number of modules 15 is set to be multiple, and the multiple modules 15 are respectively arranged in the first installation frame opening 13 and the second installation frame opening 14 in a group of two, and a mold cavity 16 is formed between two adjacent modules 15. The modules 15 and the mold cavity 16 cooperate with each other to facilitate the injection of raw materials into the first mold groove 11, the second mold groove 12, the first installation frame opening 13 and the second installation frame opening 14, and then can be formed through the outer side of the module 15 and the inner wall of the mold cavity 16, which facilitates the molding of the raw materials and increases the efficiency of the raw material molding.

[0050] Refer to the attached Figure 2 、 3As shown in Figures 4, 5, 6, and 8, the clamping assembly also includes a pressure plate 17, which is arranged on one side of the surface of the second template 10. A first transition port 18 is opened through the surface of the pressure plate 17, and a second transition port 19 is opened through one side of the surface of the first transition port 18. The first transition port 18 and the second transition port 19 are respectively matched with the mold cavity 16 in the first installation frame port 13 and the second installation frame port 14. The pressure plate 17 can play a role in limiting the material during molding. At the same time, the mutual cooperation of the first transition port 18 and the pressure plate 17 facilitates the molding of the material, increases the efficiency and effect of the material molding, and is convenient to use.

[0051] Refer to the attached Figure 4 、 7 As shown, the ejector pin assembly includes:

[0052] The hydraulic assembly 21 is provided in a plurality, and the plurality of hydraulic assemblies 21 are respectively distributed along the circumference of the axis point of the support plate 4 at the bottom of the inner wall of the support frame 5;

[0053] A reinforcing plate 22 is provided on top of the hydraulic assembly 21 , and an output end of the hydraulic assembly 21 is connected to the reinforcing plate 22 ;

[0054] There are multiple push rods 23, and the push rods 23 are respectively arranged at the four corners of the top of the reinforcing plate 22. A limiting ring 29 matching the push rods 23 is sleeved on the outside of the push rods 23 and located on the top of the reinforcing plate 22;

[0055] The hydraulic component 21 can play a driving role. When the hydraulic component 21 is started, the output end of the hydraulic component 21 drives the reinforcement plate 22 to move upward, and when the reinforcement plate 22 moves upward, it will simultaneously drive multiple push rods 23 to move upward. At the same time, through the setting of the limit ring 29, it can limit the push rod 23, increase the convenience and stability of the installation of the push rod 23, and increase the load-bearing performance of the push rod 23.

[0056] Refer to the attached Figure 3 As shown, a slide groove 24 is provided at the bottom of the support plate 4, and the inner wall of the slide groove 24 is slidably connected with a plurality of sliding blocks 25 that match the slide groove 24 respectively, and the bottom of the sliding block 25 is fixedly connected to the base 1, and a driving motor 26 is provided at the bottom of the support plate 4 for driving the support plate 4 to rotate. The slide groove 24 can play a transition role, staggering the interference between the sliding block 25 and the support plate 4 when installed, and at the same time facilitating the friction between the sliding block 25 and the inner wall of the slide groove 24 when the support plate 4 rotates. At the same time, the sliding block 25 and the slide groove 24 cooperate with each other to guide and limit the rotation trajectory of the support plate 4, thereby increasing the stability of the support plate 4 during rotation, and through the provision of multiple sliding blocks 25, the load-bearing performance of the support plate 4 is further increased.

[0057] Refer to the attached Figure 6 、 7 As shown, a locating pin is provided on the top of the ejector rod 23, wherein the upper surface of the support plate 6 is penetrated by a plurality of second ejector pin holes 28 respectively matching the locating pins, and the top of the first template 9 is penetrated by a plurality of first ejector pin holes 27 respectively on the same axial line as the second ejector pin holes 28, and one end of the locating pin sequentially penetrates the second ejector pin hole 28 and the first ejector pin hole 27 and extends to the bottom of the second template 10 and is plugged into the second template 10, and one end of the locating pin sequentially penetrates the second ejector pin hole 28 and the first ejector pin hole 27 and extends to the bottom of the second template 10 and is plugged into the second template 10, so that when the ejector rod 23 moves upward, the locating pin penetrates the second ejector pin hole 28 and the first ejector pin hole 27 and extends to the bottom of the second template 10, thereby lifting the second template 10 upward, so that the second template 10 and the first template 9 can realize the demolding function, which is convenient for the staff to take out the materials later.

[0058] Refer to the attached Figure 7 As shown, a plurality of hinges 20 are provided between the pressure plate 17 and the second template 10, and the pressure plate 17 and the second template 10 are hingedly connected by the hinges 20. A plurality of limiting holes 30 respectively located on the same axial line are opened on both sides of the top surface of the pressure plate 17 and the second template 10. The pressure plate 17 and the second template 10 are hingedly connected by the hinges 20, which facilitates the flipping of the pressure plate 17 on the outside of the second template 10. At the same time, through the setting of the upper limit holes 30 on the pressure plate 17 and the second template 10, when the pressure plate 17 is buckled on the second template 10, the pressure plate 17 and the second template 10 are positioned by the axle pin, thereby increasing the sealing between the second template 10 and the pressure plate 17 and facilitating material molding.

[0059] The specific implementation scenarios are:

[0060] The module 15 and the mold cavity 16 cooperate with each other to facilitate the injection of the raw material into the first mold groove 11, the second mold groove 12, the first installation frame opening 13 and the second installation frame opening 14. After that, the raw material can be formed through the outer side of the module 15 and the inner wall of the mold cavity 16, which facilitates the molding of the raw material and increases the efficiency of the raw material molding. The pressure plate 17 can play a role in limiting the molding of the material. At the same time, the first transition port 18 and the pressure plate 17 cooperate with each other to facilitate the molding of the material, increase the efficiency and effect of the molding of the material, and facilitate use.

[0061] At the same time, when the hydraulic assembly 21 is started, the output end of the hydraulic assembly 21 drives the reinforcing plate 22 to move upward, and when the reinforcing plate 22 moves upward, it will simultaneously drive the multiple ejector pins 23 to move upward, and the positioning pins will pass through the second ejector pin holes 28 and the first ejector pin holes 27 and extend to the bottom of the second template 10, thereby lifting the second template 10 upward, so that the second template 10 and the first template 9 can achieve the demoulding function, which is convenient for the staff to take out the materials later;

[0062] The slide groove 24 can play a transition role, staggering the interference between the sliding top block 25 and the support plate 4 when installed, and at the same time facilitating the friction between the sliding top block 25 and the inner wall of the slide groove 24 when the support plate 4 rotates. At the same time, the sliding top block 25 and the slide groove 24 cooperate with each other to guide and limit the rotation trajectory of the support plate 4, thereby increasing the stability of the support plate 4 when rotating, and the arrangement of multiple sliding top blocks 25 further increases the load-bearing performance of the support plate 4

[0063] The use process of the specific embodiment of the present invention is as follows:

[0064] First, the staff installs the device made by the present invention at the designated position. When in use, the drive motor 26 is started to drive the support plate 4 to rotate. When the support plate 4 rotates, one of the multiple support frames 5 is rotated to the die-casting machine body 2, and the die-casting machine body 2 is started, and die-casting is performed through the die-casting cooling device 3. The chute 24 and the sliding top block 25 cooperate with each other to guide and limit the rotation trajectory of the support plate 4, thereby increasing the stability of the support plate 4 during rotation. In addition, the provision of multiple sliding top blocks 25 further increases the load-bearing performance of the support plate 4.

[0065] When the support frame 5 rotates to the die-casting machine body 2, the pressure plate 17 is buckled with the second template 10, and then the pressure plate 17 and the second template 10 are positioned by the shaft pin. After that, the die-casting machine body 2 is started, and die-casting is performed through the die-casting cooling device 3. The material will pass through the mutual cooperation of the module 15 and the die cavity 16, which facilitates the injection of the raw material into the first die groove 11, the second die groove 12, the first installation frame opening 13 and the second installation frame opening 14. After that, it can be formed through the outer side of the module 15 and the inner wall of the die cavity 16, which facilitates the molding of the raw material and increases the efficiency of the raw material molding. After the material is formed, it will first pass through the die-casting machine body 2 to cool it, and then it will rotate again through the support plate 4, and the next support frame 5 will be rotated to the die-casting machine body 2 for die-casting again.

[0066] At the same time, when the hydraulic component 21 is started, the output end of the hydraulic component 21 drives the reinforcing plate 22 to move upward, and when the reinforcing plate 22 moves upward, it will simultaneously drive multiple ejector pins 23 to move upward, and the positioning pin will pass through the second ejector hole 28 and the first ejector hole 27 and extend to the bottom of the second template 10, thereby lifting the second template 10 upward, so that the second template 10 and the first template 9 can achieve the demolding function, which is convenient for the staff to take out the materials later.

[0067] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made thereto. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to be within the scope of protection claimed herein.

[0068] The terms "upper", "lower", "left", "right", "middle", etc. used in this specification are only for the convenience of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships should be regarded as within the scope of the present invention without substantially changing the technical content.

Claims

1. An efficient die-casting die for integrally forming a bicycle frame, comprising a base (1), a die-casting machine body (2) and a die-casting cooling device (3), characterized in that: The die-casting machine body (2) is arranged on the top of the base (1), and the die-casting cooling device (3) is arranged on one side of the top of the die-casting machine body (2); a molding mechanism is arranged on one side of the die-casting machine body (2) and located on the top of the base (1); The molding mechanism comprises a support plate (4) arranged on one side of the die-casting machine body (2), a plurality of support frames (5) are distributed on the top of the support plate (4) and along the circumference of the axis point of the support plate (4), and a push pin assembly is arranged on the support frame (5); A support plate (6), the support plate (6) is arranged on the top of the support frame (5), and two slide rails (7) are fixedly arranged on the top of the support plate (6); A slide plate (8), the slide plate (8) is arranged on the top of the support plate (6) and is located between the two slide rails (7), the slide plate (8) is slidably connected to the slide rails (7), and a clamping mold assembly is provided on the top of the slide plate (8); The clamping die assembly includes; A first template (9), the first template (9) is arranged on the top of the slide (8), a first mold groove (11) is formed on the upper surface of the first template (9), and a second mold groove (12) is formed on one side of the surface of the first mold groove (11); A second template (10), the second template (10) is arranged on the top of the first template (9), a first installation frame opening (13) is opened through the top of the second template (10), a second installation frame opening (14) is opened through one side of the surface of the first installation frame opening (13), and the first installation frame opening (13) and the second installation frame opening (14) are respectively connected to the first mold groove (11) and the second mold groove (12); The clamping mold assembly further includes a module (15), the number of the modules (15) is set to be multiple, the multiple modules (15) are respectively arranged in a group of two relative to each other in the first installation frame opening (13) and the second installation frame opening (14), and a mold cavity (16) is formed between two adjacent modules (15); The clamping assembly further includes a pressure plate (17), the pressure plate (17) being arranged on one side of the surface of the second template (10), a first transition opening (18) being provided through the surface of the pressure plate (17), a second transition opening (19) being provided through one side of the surface of the first transition opening (18), the first transition opening (18) and the second transition opening (19) being matched with the mold cavity (16) in the first installation frame opening (13) and the second installation frame opening (14), respectively; The ejector pin assembly includes: A hydraulic assembly (21), wherein the number of the hydraulic assemblies (21) is set to be multiple, and the multiple hydraulic assemblies (21) are respectively distributed along the circumference of the axis point of the support plate (4) at the bottom of the inner wall of the support frame (5); A reinforcing plate (22), the reinforcing plate (22) being arranged on the top of the hydraulic assembly (21), and the output end of the hydraulic assembly (21) being connected to the reinforcing plate (22); A plurality of push rods (23) are provided, and the plurality of push rods (23) are respectively provided at the four corners of the top of the reinforcing plate (22). A limiting ring (29) matching the push rod (23) is provided on the outside of the push rod (23) and located on the top of the reinforcing plate (22).

2. An efficient die-casting mold for integrally forming a bicycle frame according to claim 1, characterized in that: A slide groove (24) is provided at the bottom of the support plate (4), and a plurality of sliding top blocks (25) respectively matching the slide groove (24) are slidably connected to the inner wall of the slide groove (24), and the bottom of the sliding top block (25) is fixedly connected to the base (1). A driving motor (26) for driving the support plate (4) to rotate is provided at the bottom of the support plate (4).

3. An efficient die-casting mold for integrally forming a bicycle frame according to claim 1, characterized in that: A positioning pin is provided at the top of the ejector rod (23), wherein a plurality of second ejector pin holes (28) respectively matching the positioning pins are formed through the upper surface of the support plate (6), a plurality of first ejector pin holes (27) respectively located on the same axis as the second ejector pin holes (28) are formed through the top of the first template (9), and one end of the positioning pin passes through the second ejector pin hole (28) and the first ejector pin hole (27) in sequence and extends to the bottom of the second template (10) to be plugged into the second template (10).

4. An efficient die-casting mold for integrally forming a bicycle frame according to claim 1, characterized in that: A plurality of hinges (20) are provided between the pressure plate (17) and the second template (10), and the pressure plate (17) and the second template (10) are hingedly connected via the hinges (20). A plurality of limiting holes (30) are provided on both sides of the top surface of the pressure plate (17) and the second template (10), respectively located on the same axis.

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