Injection mold for bicycle parts

Abstract

The utility model relates to the technical field of bicycle production, and discloses a bicycle part injection mold which comprises a base, a mounting table is fixedly connected to the upper surface of the base, a lower mold is arranged above the mounting table, an upper mold is arranged above the lower mold, and injection cavities are formed in the side faces, close to each other, of the lower mold and the upper mold correspondingly; a plurality of concave cavities are formed in the side faces, close to each other, of the lower mold and the upper mold. According to the bicycle part injection mold, through the action of the concave cavity, the first positioning holes, the blocking blocks and the inserting rods, the multiple blocking blocks can be inserted into the inner wall of the concave cavity and can be rapidly in butt joint under positioning of the first positioning holes and the inserting rods, and at the moment, the blocking blocks are inserted into the concave cavity, so that flexible adaptation of complex bicycle parts can be achieved; the universality and the flexibility of the die are improved, frame parts of different shapes and sizes can be produced without frequently replacing the die, the production cost is reduced, and the production period is shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bicycle production, in particular to a bicycle part injection mold. BACKGROUND

[0002] Bicycle accessories are collectively referred to as all parts and accessories of the bicycle body. According to the structure of the frame, it can be divided into several categories: frame, tire, pedal component, front fork assembly, chain, freewheel, etc. The basic components are indispensable. In the field of bicycles, the advantages of carbon fiber material frame, handlebar and other main structures and components are very obvious. It is light in weight, high in strength, strong in rigidity and high in plasticity. It is an ideal material for manufacturing high-grade sports bicycle parts. Major bicycle manufacturers have also followed the design and application of their own carbon fiber bicycle products.

[0003] However, the traditional injection mold is often designed for specific shapes and sizes of parts, lacking sufficient flexibility to adapt to the manufacturing needs of complex frame structures, and resulting in the need to frequently change molds during production, which not only increases production costs, but also reduces production efficiency. CONTENT OF THE UTILITY MODEL

[0004] In view of the deficiencies of the prior art, the present application provides a bicycle part injection mold, which has the advantages of flexible adaptation to complex bicycle part structure and improved production efficiency, solving the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a bicycle part injection mold, comprising a base, the upper surface of the base is fixedly connected with a mounting table, the upper side of the mounting table is provided with a lower mold, the upper side of the lower mold is provided with an upper mold, the side face of the lower mold and the upper mold which are close to each other are both provided with an injection cavity, the side face of the lower mold and the upper mold which are close to each other are both provided with a plurality of recessed cavities, the inner wall of each recessed cavity is provided with a first positioning hole, the inner wall of each recessed cavity is inserted with a plug, the outer surface of each plug is fixedly connected with two symmetrical insertion rods, and the outer surface of the insertion rod is inserted into the inner wall of the first positioning hole.

[0006] Through the above-mentioned scheme, through the action between the recessed cavity, the first positioning hole, the plug and the insertion rod, multiple plugs can be inserted into the inner wall of the recessed cavity, and can be quickly connected under the positioning of the first positioning hole and the insertion rod. At this time, the plug inserted into the recessed cavity can realize flexible adaptation to complex bicycle parts, improve the versatility and flexibility of the mold, and produce bicycle frame parts of different shapes and sizes without frequent mold replacement, thereby reducing production cost and cycle.

[0007] Further, the upper surface of the lower mold is provided with four injection ports, the inner wall of the injection port is communicated with the inner wall of the injection cavity, the bottom surface of the lower mold is provided with an injection hole, and the inner wall of the injection hole is communicated with the inner wall of the four injection ports.

[0008] Through the above scheme, the injection hole is connected with the external injection pipe, and then the material passes through the injection hole and enters the inside of the injection cavity through the injection port, so that the plastic material can be smoothly and accurately formed.

[0009] Further, the inner wall of the lower mold is provided with a plurality of air inlet holes, the inner wall of the air inlet hole is communicated with the inner wall of the injection cavity, and the outer surface of the lower mold is provided with an air port, the inner wall of the air port is communicated with the inner wall of the air inlet hole.

[0010] Through the above scheme, the air port is connected with the external steam equipment, and at this time the steam enters the inside of the injection cavity through the air inlet hole, discharges the original air in the inside and controls the temperature of the mold, so that the injection molding process is optimized and the product quality is improved.

[0011] Further, the upper surface of the base is fixedly connected with two groups of symmetrical positioning rods, the outer surfaces of the lower mold and the upper mold are both provided with two groups of symmetrical second positioning holes, and the outer surfaces of the two groups of positioning rods are both inserted into the inner walls of the second positioning holes.

[0012] Through the above scheme, the connection of the lower mold and the upper mold can be positioned through the positioning rods and the second positioning holes, so that the production defects caused by the mispositioning of the mold are avoided.

[0013] Further, the outer surfaces of the lower mold and the upper mold are both provided with four rectangular array bolt holes, and the lower mold and the upper mold are fixedly connected through bolts.

[0014] Through the above scheme, the bolts are inserted into the inside of the bolt holes, so that the lower mold and the upper mold can be fixedly connected through the bolts, so that they are tightly connected together to form a stable whole, and the forming quality and size precision of the product are ensured.

[0015] Further, the upper surface of the base is fixedly connected with a fixed support, the outer surface of the fixed support is fixedly installed with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a mounting plate, and the upper surface of the upper mold is fixedly connected with two groups of fixed blocks.

[0016] Through the above scheme, the upper mold can be driven to move up and down through the action of the hydraulic cylinder, so that the upper mold is accurately connected with the lower mold, and manual carrying can be avoided, thereby greatly improving the work efficiency.

[0017] Further, the upper surface of the mounting plate is fixedly connected with two assembly boxes, the ends of the two assembly boxes away from each other are provided with a sliding groove, the inner walls of the two assembly boxes are slidably connected with two sliding blocks, the ends of the two sliding blocks away from each other are fixedly connected with a limiting rod, and the outer surface of the limiting rod is inserted into the inner wall of the fixed block.

[0018] Through the above scheme, through the action of the limiting rod, when the limiting rod is inserted into the inside of the fixed block, the upper die can be quickly connected with the mounting plate, so that the hydraulic cylinder drives the upper die to stably move up and down.

[0019] Further, the sides of the two sliding blocks close to each other are fixedly connected with a spring, the outer surfaces of the two sliding blocks are fixedly connected with a pulling block, and the outer surface of the pulling block is slidably connected with the inner wall of the sliding groove.

[0020] Through the above scheme, through the action of the spring, the sliding block can be always pushed to move to both sides, so that the mounting plate and the upper die are stably connected.

[0021] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0022] The bicycle part injection mold, through the action between the recess, the first positioning hole, the plug and the plug rod, multiple plugs can be inserted into the inner wall of the recess, and can be quickly connected under the positioning of the first positioning hole and the plug rod, at this time the plug inserted into the recess can realize flexible adaptation to complex bicycle parts, improve the versatility and flexibility of the mold, and produce bicycle frame parts of different shapes and sizes without frequent replacement of the mold, reduce production cost and cycle. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure diagram of the whole application;

[0024] Figure 2 It is a three-dimensional structure diagram of the lower mold of the application;

[0025] Figure 3 It is a bottom view structure diagram of the lower mold of the application;

[0026] Figure 4 It is a three-dimensional structure diagram of the plug and the plug rod of the application;

[0027] Figure 5 It is a three-dimensional structure diagram of the assembly box and the fixed block of the application.

[0028] In the drawings:

[0029] 1, base; 2, mounting table; 3, lower mold; 4, upper mold; 5, injection cavity; 6, concave cavity; 7, first positioning hole; 8, plug; 9, insertion rod; 10, injection port; 11, injection hole; 12, air port; 13, positioning rod; 14, second positioning hole; 15, bolt hole; 16, fixed support; 17, hydraulic cylinder; 18, mounting plate; 19, fixed block; 20, assembly box; 21, sliding groove; 22, sliding block; 23, limiting rod; 24, spring; 25, pulling block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0031] Please refer to Figure 1 , Figure 2 and Figure 4 The bicycle part injection mold in the embodiment comprises a base 1, the upper surface of the base 1 is fixedly connected with a mounting table 2, the upper portion of the mounting table 2 is provided with a lower mold 3, the upper portion of the lower mold 3 is provided with an upper mold 4, the side face of the lower mold 3 and the upper mold 4 which are close to each other are both provided with an injection cavity 5, the side face of the lower mold 3 and the upper mold 4 which are close to each other are both provided with a plurality of concave cavities 6, the inner wall of each concave cavity 6 is provided with a first positioning hole 7, the inner wall of each concave cavity 6 is inserted with a plug 8, the outer surface of each plug 8 is fixedly connected with two symmetrical insertion rods 9, and the outer surface of the insertion rod 9 is inserted into the inner wall of the first positioning hole 7. Through the action between the concave cavity 6, the first positioning hole 7, the plug 8 and the insertion rod 9, the plurality of plugs 8 can be inserted into the inner wall of the concave cavity 6, and can be quickly connected under the positioning of the first positioning hole 7 and the insertion rod 9. At this time, the plug 8 inserted into the concave cavity 6 can realize flexible adaptation to complex bicycle parts, improve the versatility and flexibility of the mold, and produce bicycle frame parts of different shapes and sizes without frequent replacement of the mold, thereby reducing production cost and cycle.

[0032] Please refer to Figure 1 , Figure 2 and Figure 3The lower mold 3 has four injection ports 10 on its upper surface, and the inner walls of the injection ports 10 are connected to the inner walls of the injection cavity 5. The lower mold 3 has an injection hole 11 on its bottom surface, and the inner wall of the injection hole 11 is connected to the inner walls of the four injection ports 10. The injection hole 11 is connected to an external injection tube, allowing material to pass through the injection holes 11 and the injection ports 10 into the injection cavity 5, ensuring that the plastic material can be molded smoothly and accurately. The lower mold 3 has multiple air inlets on its inner wall, and the inner walls of the air inlets are connected to the inner walls of the injection cavity 5. The lower mold 3 has an air vent 12 on its outer surface, and the inner wall of the air vent 12 is connected to the inner walls of the injection cavity 5. Inlet aperture The inner walls of the vent holes are interconnected, and the air vent 12 is connected to an external steam device. At this time, steam enters the injection cavity 5 through the air inlet, venting the original air inside and regulating the temperature of the mold, thereby optimizing the injection process and improving product quality. Two sets of symmetrical positioning rods 13 are fixedly connected to the upper surface of the base 1. Two sets of symmetrical second positioning holes 14 are opened on the outer surfaces of the lower mold 3 and the upper mold 4. The outer surfaces of the two sets of positioning rods 13 are inserted into the inner walls of the second positioning holes 14. By setting the positioning rods 13 and the second positioning holes 14, the connection between the lower mold 3 and the upper mold 4 can be positioned to avoid production defects caused by mold misalignment. Four rectangular array bolt holes 15 are opened on the outer surfaces of the lower mold 3 and the upper mold 4. The lower mold 3 and the upper mold 4 are fixedly connected by bolts. The bolts are inserted into the bolt holes 15, so that the lower mold 3 and the upper mold 4 can be fixedly connected by bolts, so that the two are tightly connected together to form a stable whole, ensuring the molding quality and dimensional accuracy of the product.

[0033] Please see Figure 1 and Figure 5The upper surface of the base 1 is fixedly connected with a fixing support 16, the outer surface of the fixing support 16 is fixedly installed with a hydraulic cylinder 17, the output end of the hydraulic cylinder 17 is fixedly connected with a mounting plate 18, the upper surface of the upper mold 4 is fixedly connected with two groups of fixing blocks 19, through the action of the hydraulic cylinder 17, the upper mold 4 can be driven to move up and down, so that the accurate lifting of the upper mold 4 is connected with the lower mold 3, and manual carrying can be avoided, thereby greatly improving the work efficiency, the upper surface of the mounting plate 18 is fixedly connected with two component boxes 20, the end away from each other of the two component boxes 20 is provided with a sliding groove 21, the inner wall of the two component boxes 20 is slidably connected with two sliding blocks 22, the end away from each other of the two sliding blocks 22 is fixedly connected with a limiting rod 23, and the outer surface of the limiting rod 23 is inserted into the inner wall of the fixing block 19, through the action of the limiting rod 23, when the limiting rod 23 is inserted into the inside of the fixing block 19, the upper mold 4 and the mounting plate 18 can be quickly connected, so that the hydraulic cylinder 17 drives the upper mold 4 to stably move up and down, the side face close to each other of the two sliding blocks 22 is fixedly connected with a spring 24, the outer surface of the two sliding blocks 22 is fixedly connected with a pulling block 25, and the outer surface of the pulling block 25 is slidably connected with the inner wall of the sliding groove 21, through the action of the spring 24, the sliding block 22 can be always pushed to move to both sides, so that the mounting plate 18 and the upper mold 4 are stably connected.

[0034] Through the action among the concave cavity 6, the first positioning hole 7, the plug block 8 and the insertion rod 9, the plurality of plug blocks 8 can be inserted into the inner wall of the concave cavity 6, and can be quickly connected under the positioning of the first positioning hole 7 and the insertion rod 9, at this time, the plug block 8 inserted into the concave cavity 6 can realize flexible adaptation to the complex bicycle parts, improve the versatility and flexibility of the mold, and different shaped and sized frame parts can be produced without frequent replacement of the mold, thereby reducing the production cost and cycle.

[0035] The working principle of the above embodiment is that: when using the device, first, the lower mold 3 is placed on the mounting table 2, and the stability of the lower mold 3 is ensured during placement according to the positioning rod 13 and the second positioning hole 14, then, according to the actual needs, the plurality of plugs 8 is inserted into the inner wall of the cavity 6, and the first positioning hole 7 and the plug rod 9 can be quickly connected under the positioning, at this time, the plug 8 inserted into the cavity 6 can realize flexible adaptation to complex vehicle parts, improve the versatility and flexibility of the mold, and different shapes and sizes of frame parts can be produced without frequent replacement of the mold, then, the upper mold 4 is quickly connected with the lower mold 3 according to the positioning of the positioning rod 13 and the second positioning hole 14, finally, the hydraulic cylinder 17 is started to push the mounting plate 18 to abut against the upper mold 4, and the upper mold 4 is extruded to ensure the close connection of the lower mold 3 and the upper mold 4, then through the bolt hole 15 and the bolt, the close connection of the lower mold 3 and the upper mold 4 is ensured, then the two side sliding blocks 22 are driven to move under the action of the spring 24, the limiting rod 23 is inserted into the inside of the fixed block 19, the upper mold 4 is quickly connected with the mounting plate 18, then when the molding is completed, the bolt is taken out from the bolt hole 15, and the hydraulic cylinder 17 is started to pull the upper mold 4 upward, thereby the upper mold 4 and the lower mold 3 can be separated without manual carrying, and the molded mold is convenient for manual taking out.

[0036] It should be noted that, in the present document, the terms "first", "second", etc. are used merely to distinguish one entity or action from another, and do not necessarily require or imply any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0037] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. Injection mould for a bicycle component, comprising a base (1), characterised in that: The upper surface of the base (1) is fixedly connected to the mounting platform (2). A lower mold (3) is provided above the mounting platform (2). An upper mold (4) is provided above the lower mold (3). An injection cavity (5) is provided on the side of the lower mold (3) and the upper mold (4) that are close to each other. A plurality of recesses (6) are provided on the side of the lower mold (3) and the upper mold (4) that are close to each other. A first positioning hole (7) is provided on the inner wall of each recess (6). A plug (8) is inserted into the inner wall of each recess (6). Two symmetrical insert rods (9) are fixedly connected to the outer surface of each plug (8), and the outer surface of the insert rods (9) is inserted into the inner wall of the first positioning hole (7).

2. The injection mold for a bicycle component of claim 1, wherein: The upper surface of the lower mold (3) is provided with four injection ports (10), the inner wall of the injection port (10) is connected to the inner wall of the injection cavity (5), and the bottom surface of the lower mold (3) is provided with an injection hole (11), the inner wall of the injection hole (11) is connected to the inner wall of the four injection ports (10).

3. The bicycle component injection mold of claim 1, wherein: The lower mold (3) has multiple air inlets on its inner wall, and the inner wall of the air inlets is connected to the inner wall of the injection cavity (5). The lower mold (3) has an air vent (12) on its outer surface, and the inner wall of the air vent (12) is connected to the inner wall of the air inlet.

4. The bicycle component injection mold of claim 1, wherein: The upper surface of the base (1) is fixedly connected with two sets of symmetrical positioning rods (13). The outer surfaces of the lower mold (3) and the upper mold (4) are provided with two sets of symmetrical second positioning holes (14). The outer surfaces of the two sets of positioning rods (13) are inserted into the inner wall of the second positioning hole (14).

5. The bicycle component injection mold of claim 1, wherein: The outer surfaces of the lower mold (3) and the upper mold (4) are provided with four rectangular array bolt holes (15), and the lower mold (3) and the upper mold (4) are fixedly connected by bolts.

6. The bicycle component injection mold of claim 1, wherein: A fixed bracket (16) is fixedly connected to the upper surface of the base (1), a hydraulic cylinder (17) is fixedly installed on the outer surface of the fixed bracket (16), an installation plate (18) is fixedly connected to the output end of the hydraulic cylinder (17), and two sets of fixed blocks (19) are fixedly connected to the upper surface of the upper mold (4).

7. The injection mold for a bicycle component of claim 6, wherein: The upper surface of the mounting plate (18) is fixedly connected to two component boxes (20). Each of the two component boxes (20) has a sliding groove (21) at one end away from each other. Each of the two component boxes (20) has two sliders (22) slidably connected to the inner wall of each component box (20). Each of the two sliders (22) has a limit rod (23) fixedly connected at one end away from each other, and the outer surface of the limit rod (23) is inserted into the inner wall of the fixing block (19).

8. The bicycle component injection mold of claim 7, wherein: A spring (24) is fixedly connected to one side of the two sliders (22) that are close to each other. A pulling block (25) is fixedly connected to the outer surface of each slider (22), and the outer surface of the pulling block (25) is slidably connected to the inner wall of the groove (21).

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