Automatic mold opening device and bicycle mold

Abstract

The utility model discloses an automatic mould opening device and a bicycle mould, relates to mould technical field, wherein the automatic mould opening device comprises a frame, a mould and a driving mechanism, the mould comprises a lower mould arranged on the frame and an upper mould hinged on the lower mould through a hinge, the lower mould is arranged on the frame, the upper mould is arranged on one side of the lower mould back to the frame, and the driving mechanism is arranged on the frame. The driving mechanism comprises a driving part and a jacking rod, the driving part is arranged on the rack, one end of the jacking rod is connected with the driving end of the driving part, the other end of the jacking rod is movably connected with the upper die, and the driving part is used for driving the jacking rod to jack to open the upper die; according to the technical scheme provided by the utility model, when the driving piece drives the jacking rod to ascend, the jacking rod jacks the upper mold, the upper mold rotates along the hinge, the mold is opened at the moment, an operator can take out a formed bicycle part, automatic mold opening and closing can be realized by adopting the technical scheme, the working production efficiency is improved, and the production cost is reduced. And die damage caused by die opening by using a crowbar is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to an automatic mold opening device and a bicycle mold. Background Art

[0002] Bicycle PU molding mold is a special mold used to produce bicycle parts, usually made of polyurethane (PU) material. This mold is precisely designed to ensure the dimensional accuracy and surface quality of bicycle parts. PU material is widely used in the production of bicycle tires, saddles, handlebars and other parts due to its excellent elasticity, wear resistance and impact resistance. Using PU molding molds can improve production efficiency and reduce manual operations while ensuring consistent product quality and performance. In addition, the PU molding process also has good environmental characteristics because it can reduce material waste and reduce energy consumption in the production process.

[0003] In the related art, the PU mold includes an upper mold and a lower mold, and the mold is usually opened manually. The operator will use the leverage of the crowbar, insert it between the upper mold and the lower mold, and apply force to pry half or more of the upper mold to separate it from the lower mold, thereby taking out the molded PU product.

[0004] However, the above manual mold opening method is inefficient, and the crowbar is likely to cause damage to the mold when opening the mold. Utility Model Content

[0005] The main purpose of the utility model is to provide an automatic mold opening device and a bicycle mold, aiming to provide an automatic mold opening device with more efficient mold opening and no damage to the mold structure.

[0006] To achieve the above purpose, the automatic mold opening device proposed by the utility model includes:

[0007] frame;

[0008] A mold, the mold comprising a lower mold provided on the frame and an upper mold hingedly provided on the lower mold through a hinge, the lower mold being provided on the frame, and the upper mold being provided on a side of the lower mold facing away from the frame; and

[0009] The driving mechanism comprises a driving member and a lifting rod, wherein the driving member is arranged on the frame, one end of the lifting rod is connected to the driving end of the driving member, and the other end is movably connected to the upper mold, and the driving member is used to drive the lifting rod to lift to open the upper mold.

[0010] In one embodiment, the driving member is a motor, a gear is provided at the driving end of the motor, teeth are provided around the circumference of the lifting rod, and the gear is meshed with the teeth.

[0011] In one embodiment, the driving member is a cylinder, and the driving mechanism further comprises a transmission rod, a gear is provided at the end of the transmission rod, and teeth are provided in the circumference of the lifting rod, and the gear is meshed with the teeth.

[0012] In one embodiment, a rack is provided at the driving end of the cylinder, and a driving wheel is provided at the transmission rod, and the rack and the driving wheel are meshed.

[0013] In one embodiment, the frame is provided with a guide portion, the cylinder is provided in the guide portion, the guide portion is formed with a guide hole and a guide groove, the driving end of the cylinder is movably passed through the guide hole and connected to the rack, and the rack sliding limit is located in the guide groove.

[0014] In one embodiment, the transmission rod is rotatably mounted on the frame, two gears are respectively disposed at both ends of the transmission rod, and the automatic mold opening device is provided with two lifting rods, which are respectively meshed with the two gears.

[0015] In one embodiment, the upper mold is rotatably provided with a first connecting portion, a plug-in groove is formed on the side of the first connecting portion facing away from the hinge, the lifting rod is provided with a second connecting portion, the second connecting portion is provided with a latch, and the latch is movably inserted in the plug-in groove.

[0016] In one embodiment, the lifting rod includes a sleeve and a gear rod, one end of the sleeve is used to contact the ground, and the other end is formed with an opening, the sleeve is provided with a notch along the circumference, the sleeve forms a piston cavity, the gear rod movable limit is located in the piston cavity, the gear rod is provided with teeth along the circumference, and the teeth are exposed at the notch.

[0017] In one embodiment, the automatic mold opening device also includes a locking device, which includes a locking protrusion and a rotatably arranged locking portion, the locking portion is formed with a locking groove, one of the locking protrusion and the locking groove is arranged on the upper mold, and the other one is arranged on the lower mold.

[0018] The utility model also provides a bicycle mold, the bicycle mold includes an automatic mold opening device, the automatic mold opening device includes:

[0019] frame;

[0020] A mold, the mold comprising a lower mold provided on the frame and an upper mold hingedly provided on the lower mold through a hinge, the lower mold being provided on the frame, and the upper mold being provided on a side of the lower mold facing away from the frame; and

[0021] The driving mechanism comprises a driving member and a lifting rod, wherein the driving member is arranged on the frame, one end of the lifting rod is connected to the driving end of the driving member, and the other end is movably connected to the upper mold, and the driving member is used to drive the lifting rod to lift to open the upper mold.

[0022] In the technical scheme of the utility model, an automatic mold opening device and a bicycle mold are proposed, wherein the automatic mold opening device comprises a frame, a mold and a driving mechanism, the mold comprises a lower mold arranged on the frame and an upper mold hinged on the lower mold by a hinge, the driving mechanism comprises a driving member and a lifting rod, the driving member is arranged on the frame, one end of the lifting rod is connected to the driving end of the driving member and the other end is connected to the upper mold, when the driving member drives the lifting rod to rise, the lifting rod will lift the upper mold, one end of the upper mold is hinged to the lower mold, and the upper mold will rotate along the hinge, at this time the mold is opened, the operator can take out the formed bicycle parts, the driving member reverses and controls the mold to close, the above technical scheme can be adopted to realize automatic mold opening and closing, improve work production efficiency, and avoid mold damage caused by using a crowbar to open the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A structural schematic diagram of an embodiment of an automatic mold opening device provided by the utility model;

[0025] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0026] Figure 3 This is a structural schematic diagram of the automatic mold opening device provided by the utility model from another angle;

[0027] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0028] Figure 5 This is a structural schematic diagram of the automatic mold opening device provided by the utility model from another angle;

[0029] Figure 6 for Figure 1 The structural diagram of the middle transmission rod;

[0030] Figure 7 for Figure 1 Schematic diagram of the structure of the middle guide part.

[0031] Description of Figure Numbers:

[0032] 1000. product; 1. frame; 11. guide part; 111. guide hole; 112. guide groove; 113. mounting hole; 2. mold; 21. upper mold; 22. lower mold; 23. hinge; 3. driving mechanism; 31. driving member; 311. cylinder; 32. lifting rod; 321. gear rod; 321a. teeth; 322. sleeve; 322a. notch; 33. rack; 4. transmission rod; 41. gear; 42. driving wheel; 5. first connecting part; 51. rotating seat; 52. plug-in member; 521. plug-in groove; 6. second connecting part; 61. latch; 7. locking device; 71. snap-fit ​​protrusion; 72. snap-fit ​​part; 721. snap-fit ​​groove.

[0033] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0036] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0037] Bicycle PU molding mold is a special mold used to produce bicycle parts, usually made of polyurethane (PU) material. This mold is precisely designed to ensure the dimensional accuracy and surface quality of bicycle parts. PU material is widely used in the production of bicycle tires, saddles, handlebars and other parts due to its excellent elasticity, wear resistance and impact resistance. Using PU molding molds can improve production efficiency and reduce manual operations while ensuring consistent product quality and performance. In addition, the PU molding process also has good environmental characteristics because it can reduce material waste and reduce energy consumption in the production process.

[0038] In the related art, the PU mold includes an upper mold and a lower mold, and the mold is usually opened manually. The operator will use the leverage of the crowbar, insert it between the upper mold and the lower mold, and apply force to pry half or more of the upper mold to separate it from the lower mold, thereby taking out the molded PU product.

[0039] However, the above manual mold opening method is inefficient, and the crowbar is likely to cause damage to the mold when opening the mold.

[0040] In order to solve the above problems, the utility model proposes an automatic mold opening device and a bicycle mold, aiming to provide an automatic mold opening device that is more efficient in mold opening and does not damage the mold structure. Figures 1 to 7 The present invention is a schematic structural diagram of an embodiment of the automatic mold opening device provided by the present invention.

[0041] Please refer to Figures 1 to 7 The utility model proposes an automatic mold opening device, including a frame 1, a mold 2 and a driving mechanism 3. The mold 2 includes a lower mold 22 arranged on the frame 1 and an upper mold 21 hinged to the lower mold 22 through a hinge 23. The lower mold 22 is arranged on the frame 1, and the upper mold 21 is arranged on the side of the lower mold 22 facing away from the frame 1. The driving mechanism 3 includes a driving member 31 and a lifting rod 32. The driving member 31 is arranged on the frame 1. One end of the lifting rod 32 is connected to the driving end of the driving member 31, and the other end is movably connected to the upper mold 21. The driving member 31 is used to drive the lifting rod 32 to lift to open the upper mold 21.

[0042] In the technical scheme of the utility model, an automatic mold opening device and a bicycle mold 2 are proposed, wherein the automatic mold opening device includes a frame 1, a mold 2 and a driving mechanism 3, the mold 2 includes a lower mold 22 arranged on the frame 1 and an upper mold 21 hinged on the lower mold 22 through a hinge 23, the driving mechanism 3 includes a driving member 31 and a lifting rod 32, the driving member 31 is arranged on the frame 1, one end of the lifting rod 32 is connected to the driving end of the driving member 31 and the other end is connected to the upper mold 21, when the driving member 31 drives the lifting rod 32 to rise, the lifting rod 32 will lift the upper mold 21, one end of the upper mold 21 is hinged to the lower mold 22, and the upper mold 21 will rotate along the hinge 23, at this time the mold 2 is opened, the operator can take out the formed bicycle parts, the driving member 31 is driven in reverse to control the mold 2 to close, the above technical scheme can be adopted to realize automatic mold opening and closing, improve the work production efficiency, and avoid the use of a crowbar to open the mold to cause damage to the mold 2.

[0043] In one embodiment of the utility model, the driving member 31 is a motor, the driving end of the motor is provided with a gear 41, and the circumference of the lifting rod 32 is provided with teeth 321a, the gear 41 is meshed with the teeth 321a of the lifting rod 32, and the gear 41 transmission can provide precise control to ensure that the lifting movement of the lifting rod 32 is smooth and predictable. Secondly, the serrated lifting rod 32 design increases the contact area and friction force of the meshing with the gear 41, improves the transmission efficiency and stability, and prevents slipping during the lifting process. In addition, the combination of the gear 41 and the lifting rod 32 can achieve a large torque transmission, so that the lifting mechanism can carry a heavier load. At the same time, this design is also convenient for realizing automatic control. Through the speed and direction control of the motor, the lifting speed and position can be accurately adjusted to meet the needs of different application scenarios. Finally, the gear 41 transmission system driven by the motor is easy to maintain and durable, which helps to reduce long-term operating costs. Furthermore, a reducer can be connected to the drive end of the motor, and the kinetic energy can be output through the reducer. The reducer can significantly reduce the speed of the motor and increase the output torque, which is very beneficial for application scenarios that require large torque but do not require high speed. Secondly, by reducing speed and increasing torque, the motor can operate at a lower speed, which helps to reduce mechanical wear and extend the life of the equipment. In addition, the use of a reducer can also improve the stability and accuracy of the system, because the output after deceleration is smoother, which helps to achieve precise control. Finally, the use of a reducer can reduce the requirements for motor performance, allowing the use of lower-cost and smaller motors, thereby bringing advantages in design and economy.

[0044] In another embodiment of the present invention, the driving member 31 is a cylinder 311. For details, please refer to Figure 1The cylinder 311 body is fixed on the lower mounting plate (not marked in the figure) of the frame 1. The driving mechanism 3 also includes a transmission rod 4. A gear 41 is provided at the end of the transmission rod 4. The circumference of the lifting rod 32 is provided with teeth 321a. The gear 41 and the teeth 321a of the lifting rod 32 are meshed. When the cylinder 311 pushes the rack 33 to move, the rack 33 will drive the driving wheel 42 meshed with it. The driving wheel 42 keeps coaxial rotation with the transmission rod 4. The rotation of the transmission rod 4 drives the gear 41 at the end of the transmission rod 4 to rotate, thereby driving the lifting rod 32 to rise and fall. The driving structure using the combination of the cylinder 311 and the rack 33 has the characteristics of simple structure, easy maintenance, installation and disassembly, and reliability. It should be noted that a greater lifting force can also be obtained by changing the gear ratio of the driving wheel 42 and the gear 41.

[0045] Since the rack 33 is subject to the resistance of the driving wheel 42 when it moves, its movement direction deviates from the predetermined direction, and assuming that there is a guide portion 11, please refer to Figure 1 and Figure 7 The guide portion 11 is formed with a guide hole 111 and a guide groove 112. The driving end of the cylinder 311 is movably inserted into the guide hole 111 and connected to the rack 33. The guide hole 111 and the guide groove 112 are arranged opposite to each other, and the rack 33 is slidably limited in the guide groove 112. The guide portion 11 is also symmetrically provided with two mounting holes 113 for mounting the transmission rod 4. The transmission rod 4 is rotatably mounted in the two mounting holes 113.

[0046] In one embodiment of the present invention, in order to ensure that the upper mold 21 is subjected to a uniform mold opening force, gears 41 are provided at both ends of the transmission rod 4. For details, please refer to Figure 6 The automatic mold opening device is provided with two lifting rods 32, and the two lifting rods 32 are respectively meshed with two gears 41. Uniform force can reduce local stress concentration and avoid damage or deformation of the mold 2 due to uneven force, thereby extending the service life of the mold 2. Secondly, uniform force distribution helps to reduce vibration and noise during the lifting process and improve the stability of the production process. In addition, uniform force helps to maintain the precise alignment of the mold 2 and ensure the dimensional accuracy and quality consistency of the molded product 1000. At the same time, the symmetrical lifting design simplifies the mechanical structure, facilitates automatic control, and improves production efficiency. Finally, uniform force can also help reduce safety hazards during operation and improve the safety of operation.

[0047] In the technical solution of the present utility model, the lifting rod 32 includes a sleeve 322 and a gear rod 321. For details, please refer to Figure 5One end of the sleeve 322 contacts the ground, and the other end forms an opening. The sleeve 322 is provided with a notch 322a along the circumference, and the sleeve 322 forms a piston cavity. The gear rod 321 is movable in the piston cavity. The gear rod 321 is provided with teeth 321a along the circumference, and the teeth 321a are exposed at the notch 322a. The gear 41 drives the internal gear rod 321 to move up and down through the notch 322a.

[0048] When the lifting rod 32 lifts the upper mold 21, since the outer dimensions of the upper mold 21 are fixed, when the upper mold 21 is opened relative to the lower mold 22, the lower mold 22 and the lifting rod 32 form two right-angled sides of a triangle, and the upper mold 21 forms the hypotenuse of the triangle. The projection of the movable end of the upper mold 21 on the lower mold 22 obviously does not coincide with the end of the lower mold 22. This requires a certain movable gap between the lifting rod 32 and the upper mold 21 to prevent the lifting rod 32 from being subjected to a large lateral force. In view of this, a rotating seat 51 is provided at the movable end of the upper mold 21, and a plug-in connector 52 is provided on the rotating seat 51. For details, please refer to Figure 4 A plug-in groove 521 is provided on the side of the connector 52 facing away from the hinge 23, and the lifting rod 32 is provided with a second connecting portion 6, which includes a latch 61. The latch 61 is movably inserted in the plug-in groove 521 and can be detached from the bottom of the plug-in groove 521 and move in a small range within the plug-in groove 521, thereby preventing the lifting rod 32 from being subjected to large lateral force.

[0049] In order to ensure that the clamping force during molding is sufficient, the automatic mold opening device also includes a locking device 7. For details, please refer to Figure 5 The locking device 7 includes a locking protrusion 71 and a rotatably arranged locking portion 72, the locking portion 72 is formed with a locking groove 721, one of the locking protrusion 71 and the locking groove 721 is arranged on the upper mold 21, and the other is arranged on the lower mold 22. When the mold 2 is closed, the locking device 7 is locked, thereby improving the sealing of the internal cavity, and before opening the mold, it only needs to rotate the locking portion 72 to achieve unlocking.

[0050] The utility model also proposes a bicycle mold 2, which includes an automatic mold opening device. The specific structure of the automatic mold opening device refers to the above embodiment. Since the bicycle mold 2 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0051] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic mold opening device, characterized in that: include: Rack (1); A mold (2), the mold (2) comprising a lower mold (22) arranged on the frame (1) and an upper mold (21) hingedly connected to the lower mold (22) via a hinge (23), the lower mold (22) being arranged on the frame (1), and the upper mold (21) being arranged on a side of the lower mold (22) facing away from the frame (1); as well as A driving mechanism (3), the driving mechanism (3) comprising a driving member (31) and a lifting rod (32), the driving member (31) being arranged on the frame (1), one end of the lifting rod (32) being connected to the driving end of the driving member (31), and the other end being movably connected to the upper mold (21), the driving member (31) being used to drive the lifting rod (32) to lift so as to open the upper mold (21).

2. The automatic mold opening device according to claim 1, characterized in that: The driving member (31) is a motor, a gear (41) is provided at the driving end of the motor, teeth (321a) are provided in the circumferential direction of the lifting rod (32), and the gear (41) is meshed with the teeth (321a).

3. The automatic mold opening device according to claim 1, characterized in that: The driving member (31) is a cylinder (311), and the driving mechanism (3) further comprises a transmission rod (4), a gear (41) is provided at the end of the transmission rod (4), and teeth (321a) are provided in the circumferential direction of the lifting rod (32), and the gear (41) is meshed with the teeth (321a).

4. The automatic mold opening device according to claim 3, characterized in that: The driving end of the cylinder (311) is provided with a rack (33), the transmission rod (4) is provided with a driving wheel (42), and the rack (33) and the driving wheel (42) are meshed with each other.

5. The automatic mold opening device according to claim 4, characterized in that: The frame (1) is provided with a guide portion (11), the cylinder (311) is provided on the guide portion (11), the guide portion (11) is formed with a guide hole (111) and a guide groove (112), the driving end of the cylinder (311) is movably inserted into the guide hole (111) and connected to the rack (33), and the rack (33) is slidably limited in the guide groove (112).

6. The automatic mold opening device according to claim 5, characterized in that: The transmission rod (4) is rotatably mounted on the frame (1), two gears (41) are respectively arranged at both ends of the transmission rod (4), and the automatic mold opening device is provided with two lifting rods (32), and the two lifting rods (32) are respectively meshed with the two gears (41).

7. The automatic mold opening device according to any one of claims 1 to 6, characterized in that: The upper mold (21) is rotatably provided with a first connecting portion (5), and a plug-in groove (521) is formed on the side of the first connecting portion (5) facing away from the hinge (23). The lifting rod (32) is provided with a second connecting portion (6), and the second connecting portion (6) is provided with a latch (61), and the latch (61) is movably inserted in the plug-in groove (521).

8. The automatic mold opening device according to any one of claims 1 to 6, characterized in that: The lifting rod (32) comprises a sleeve (322) and a gear rod (321); one end of the sleeve (322) is used to contact the ground, and the other end is formed with an opening; the sleeve (322) is provided with a notch (322a) along the circumference; the sleeve (322) forms a piston cavity; the gear rod (321) is movable and limited in the piston cavity; the gear rod (321) is provided with teeth (321a) along the circumference; the teeth (321a) are exposed at the notch (322a).

9. The automatic mold opening device according to any one of claims 1 to 6, characterized in that: The automatic mold opening device also includes a locking device (7), the locking device (7) includes a locking protrusion (71) and a rotatably arranged locking portion (72), the locking portion (72) is formed with a locking groove (721), one of the locking protrusion (71) and the locking groove (721) is arranged on the upper mold (21), and the other one of them is arranged on the lower mold (22).

10. A bicycle mold (2), characterized in that: The invention comprises the automatic mold opening device according to any one of claims 1 to 9.

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