Folding fork injection mold

Abstract

The utility model discloses a folding fork injection mold, and relates to the technical field of injection molds. The folding fork injection mold comprises a base and a fixed mold, and a workbench is fixedly connected to the base; the folding fork injection molding assembly comprises a fixing frame, a second movable mold is arranged on the side face of the first movable mold, a sliding rod is fixedly connected to the end, close to the first movable mold, of the second movable mold, the surface of the sliding rod is sleeved with a reset spring, and a plurality of limiting plates are fixedly connected to the surface of the fixed mold. Through the use of the first movable mold, the fixed mold and the second movable mold, the handle part and the fork head part can be conveniently formed, the folding fork is in a folded state after forming is completed, the later processing procedure of the folding fork is reduced, through the arrangement of a limiting plate, a sliding rod and a reset spring, the second movable mold can be conveniently limited, and the working efficiency is improved. The folding fork can be conveniently demolded after injection molding of the folding fork is completed, the demolding efficiency of the folding fork is improved, and the forming efficiency of the folding fork is conveniently improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an injection mold for a folding fork. Background Technology

[0002] A folding fork generally consists of a fork head and a handle. A positioning structure is provided between the fork head and the handle. In existing folding fork injection molds, a molding insert shapes the inner surface of the handle, a moving mold core shapes the outer surfaces of the handle and the fork head, and a fixed mold core shapes the inner surface of the fork head. Chinese utility model patent, authorized announcement number "CN212288437U", discloses a disposable plastic fork removal and folding device, including a fork removal fixture and a fork folding device. The fork removal fixture and the fork folding device are respectively mounted on an injection molding robot. The fork removal fixture is transported to the fork folding device by the injection molding robot. The fork folding device is provided with a first angle folding mechanism and a complete folding mechanism. After the first angle folding mechanism folds the fork to a certain angle, the complete folding mechanism folds the fork completely.

[0003] The above-mentioned technical solution involves installing a fork removal fixture on an injection molding robot arm. The fork removal fixture has an aluminum plate and a vacuum suction cup. The plastic fork is first removed from the injection molding machine and then moved to the fork folding device. The fork folding device first folds the fork to an angle using a first cylinder, and then a second cylinder pushes a round rod to fold the fork completely. This reduces labor costs and improves production efficiency. However, the above-mentioned technical solution still has certain drawbacks. When using this device, it is necessary to fold the injection-molded folding fork, and the device performs a secondary folding of the plastic part during use, which involves many steps and reduces the efficiency of the device. Therefore, this utility model proposes a new solution. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a folding fork injection mold that can solve the problem that when using the device, it is necessary to fold the injection-molded folding fork, and the device needs to fold the plastic part twice during use, which involves many steps and reduces the efficiency of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a folding fork injection mold, comprising a base and a fixed mold, wherein a worktable is fixedly connected to the base;

[0006] A folding fork injection molding assembly is set on a workbench. The folding fork injection molding assembly includes a fixed frame, which is fixedly connected to the workbench. A hydraulic rod is fixedly connected inside the fixed frame, and a first moving mold is fixedly connected to the output end of the hydraulic rod. A sliding groove is provided on the side of the first moving mold.

[0007] The first moving mold has a second moving mold on its side. A slide rod is fixedly connected to one end of the second moving mold near the first moving mold. A return spring is sleeved on the surface of the slide rod. The two ends of the return spring are fixedly connected to the slide groove and the second moving mold, respectively. Multiple limit plates are fixedly connected to the surface of the fixed mold.

[0008] The number of slides, slide rods and return springs are four, symmetrically arranged on the left and right sides of the first moving mold, and the number of the second moving molds is two, symmetrically arranged on the left and right sides of the first moving mold.

[0009] Preferably, the folding fork injection molding assembly further includes a mold connecting frame, which is fixedly connected to the upper end of a fixed mold, and the surface of the fixed mold is provided with a plurality of first folding fork grooves;

[0010] The surface of the first moving mold is provided with multiple second folding fork grooves, and the surfaces of the two second moving molds are provided with multiple third folding fork grooves. The surfaces of the two second moving molds are fixedly connected with multiple second folding fork grooves.

[0011] Preferably, there are two folding fork injection molding assemblies, which are symmetrically arranged on the front and rear sides of the fixed mold.

[0012] Preferably, each of the plurality of limiting plates is divided into two segments and the two segments are in an "S" shape.

[0013] Preferably, the first moving mold, the fixed mold, and the second moving mold are each equipped with multiple heating tubes.

[0014] Preferably, an injection molding machine is fixedly connected to the upper end of the mold connecting frame, an injection channel is opened inside the mold, and the front and rear ends of the mold connecting frame are fixedly connected to the corresponding fixed frames respectively.

[0015] Preferably, a folding fork collecting hopper is fixedly connected to the surface of the workbench, and a folding fork guide groove is opened on the surface of the workbench. A folding fork baffle is rotatably connected inside the folding fork guide groove, and the folding fork baffle is "Y" shaped.

[0016] Preferably, the upper end of the base is provided with a detachable folding fork collection box.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. The injection mold for this folding fork, through the use of a first moving mold, a fixed mold, and a second moving mold, facilitates the separate molding of the handle and the fork head. After molding, the folding fork is in a folded state, reducing subsequent processing steps. The setting of a limiting plate, a sliding rod, and a return spring facilitates the limiting of the second moving mold, making it easier to demold the folding fork after injection molding, thus improving the demolding efficiency and molding efficiency of the folding fork. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the injection mold structure for a folding fork according to the present invention;

[0021] Figure 2 This is a schematic diagram of the injection molding machine of this utility model;

[0022] Figure 3 This is a schematic diagram of the folding fork guide channel of this utility model;

[0023] Figure 4 This is a schematic diagram of the mold for this utility model;

[0024] Figure 5 This is a schematic diagram of the slide bar of this utility model;

[0025] Figure 6 This is a schematic diagram of the first moving mold of this utility model;

[0026] Figure 7 This is a schematic diagram of the second moving mold of this utility model.

[0027] Reference numerals: 1. Base; 2. Workbench; 3. Fixing frame; 4. Hydraulic rod; 5. First moving mold; 6. Mold connecting frame; 7. Fixed mold; 8. Second moving mold; 9. Limiting plate; 10. Injection molding machine; 11. First folding fork groove; 12. Connecting block; 13. Second folding fork groove; 14. Third folding fork groove; 15. Slide groove; 16. Slide rod; 17. Return spring; 18. Folding fork guide groove; 19. Folding fork collection hopper; 20. Folding fork baffle; 21. Folding fork collection box. Detailed Implementation

[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Please see Figure 1-7 This utility model provides a technical solution: a folding fork injection mold, including a base 1 and a fixed mold 7. A workbench 2 is fixedly connected to the base 1. A folding fork injection assembly is set on the workbench 2. The folding fork injection assembly includes a fixing frame 3, which is fixedly connected to the workbench 2. A hydraulic rod 4 is fixedly connected inside the fixing frame 3. A first moving mold 5 is fixedly connected to the output end of the hydraulic rod 4. A sliding groove 15 is opened on the side of the first moving mold 5. A second moving mold 8 is set on the side of the first moving mold 5. A sliding rod 16 is fixedly connected to one end of the second moving mold 8 near the first moving mold 5. A return spring 17 is sleeved on the surface of the sliding rod 16. The two ends of the return spring 17 are fixedly connected to the sliding groove 15 and the second moving mold 8, respectively. Multiple limiting plates 9 are fixedly connected to the surface of the fixed mold 7. There are four sliding grooves 15, four sliding rods 16, and four return springs 17, which are symmetrically arranged on the left and right sides of the first moving mold 5. There are two second moving molds 8, which are symmetrically arranged on the left and right sides of the first moving mold 5.

[0033] The folding fork injection molding assembly also includes a mold connecting frame 6, which is fixedly connected to the upper end of the fixed mold 7. The surface of the fixed mold 7 is provided with a plurality of first folding fork grooves 11, the surface of the first moving mold 5 is provided with a plurality of second folding fork grooves 13, and the surfaces of the two second moving molds 8 are each provided with a plurality of third folding fork grooves 14. The surfaces of the two second moving molds 8 are fixedly connected with a plurality of second folding fork grooves 13.

[0034] There are two folding fork injection molding components, which are symmetrically arranged on the front and rear sides of the fixed mold 7.

[0035] Each of the multiple limit plates 9 is divided into two segments, and the two segments are in an "S" shape.

[0036] Multiple heating tubes are installed inside the first moving mold 5, the fixed mold 7, and the second moving mold 8.

[0037] The upper end of the mold connecting frame 6 is fixedly connected to the injection molding machine 10. The mold 7 has an injection channel inside. The front and rear ends of the mold connecting frame 6 are fixedly connected to the corresponding fixed frame 3 respectively.

[0038] A folding fork collection hopper 19 is fixedly connected to the surface of the workbench 2. A folding fork guide groove 18 is opened on the surface of the workbench 2. A folding fork baffle 20 is rotatably connected inside the folding fork guide groove 18. The folding fork baffle 20 is Y-shaped.

[0039] A detachable folding fork collection box 21 is provided at the upper end of the base 1.

[0040] When using this device, first connect the power supply to the heating tube to preheat the first moving mold 5, the fixed mold 7, and the second moving mold 8. Then, start the hydraulic rod 4 to extend and move the first moving mold 5 closer to the fixed mold 7. The first moving mold 5 moves the second moving mold 8, the slide rod 16, and the return spring 17 toward the fixed mold 7, so that the first moving mold 5 and the second moving mold 8 are in contact with the fixed mold 7, and the first folding fork groove 11 cooperates with the corresponding connecting block 12, the second folding fork groove 13, and the third folding fork groove 14. Start the injection molding machine 10 to inject the material through the injection channel inside the fixed mold 7 into the gap between the first folding fork groove 11, the connecting block 12, the second folding fork groove 13, and the third folding fork groove 14, which facilitates the molding of the folding fork. Since the first folding fork groove 11, the second folding fork groove 13 and the connecting block 12 and the third folding fork groove 14 have a certain included angle, the handle and the fork head can be molded separately when molding the folding fork, which can improve the molding efficiency of the folding fork.

[0041] After the injection mold is kept warm and cooled for a period of time, the folding fork is formed. After the folding fork is formed, the hydraulic rod 4 is activated again to shorten and move the first moving mold 5, so that the first moving mold 5 separates from the fixed mold 7. During the separation process of the first moving mold 5 and the fixed mold 7, the first moving mold 5 will drive the second moving mold 8 to slide between the corresponding limit plates 9. Since the first moving mold 5 is equipped with a sliding rod 16 and a return spring 17, the second moving mold 8 will be subjected to the action of the return spring 17. When the second moving mold 8 moves to the wider part of the limit plate 9, the second moving mold 8 will move away from the first moving mold 5 under the action of the return spring 17, so that the second moving mold 8 separates from the first moving mold 5, so that the connecting block 12 and the third folding fork groove 14 are away from the first moving mold 5, which facilitates the separation of the folding fork from the first moving mold 5 and the fixed mold 7, facilitates the demolding operation of the folding fork, and improves the demolding efficiency of the folding fork.

[0042] After the folding forks are demolded, they fall under their own weight. The folding fork collection hopper 19 and the folding fork guide channel 18 guide the falling folding forks, and the folding fork baffle 20 further divides the flow to prevent blockage during the flow of the folding forks through the folding fork guide channel 18. Even if blockage occurs, the folding fork baffle 20 can be rotated around the worktable 2 to disturb the folding forks inside the folding fork guide channel 18. This facilitates the collection of the folding forks through the folding fork guide channel 18 and the folding fork baffle 20 using the folding fork collection box 21. The folding fork collection box 21 can store the demolded folding forks in an orderly manner, avoiding forks being scattered all over the ground or piled up haphazardly, thereby improving the cleanliness and safety of the production site.

[0043] Furthermore, the use of the first moving mold 5, the fixed mold 7, and the second moving mold 8 facilitates the molding of the handle and the fork head respectively. After molding, the folding fork is in a folded state, reducing the subsequent processing steps for the folding fork. The setting of the limiting plate 9, the sliding rod 16, and the return spring 17 facilitates the limiting of the second moving mold 8, which facilitates the demolding operation of the folding fork after injection molding, improving the demolding efficiency of the folding fork and improving the molding efficiency of the folding fork.

[0044] The folding fork guide channel 18, folding fork collection hopper 19, folding fork baffle 20 and folding fork baffle 20 facilitate the guidance and collection of the folding forks after molding. The folding fork collection box 21 can be used to store the demolded folding forks in an orderly manner, avoiding the forks from being scattered all over the ground or piled up in a mess, and avoiding contamination after the folding forks are injection molded, thereby improving the cleanliness and safety of the production site.

[0045] Structural Description: Base 1: The basic support structure of the entire device, providing stable support for components such as the workbench 2.

[0046] Workbench 2: Fixed to base 1, providing an installation platform for the folding fork injection molding assembly.

[0047] Fixed frame 3: Fixed on the workbench 2, used to install and fix the hydraulic rod 4 to ensure its working stability.

[0048] Hydraulic rod 4: It drives the first moving mold 5 to move through telescopic movement, realizing the opening and closing of the mold, and is the power source for the mold movement.

[0049] The first moving mold 5: driven by the hydraulic rod, it cooperates with the fixed mold 7. The second folding fork groove 13 on its surface participates in the forming of the folding fork, and at the same time provides a foundation for the installation and movement of the second moving mold 8.

[0050] Mold connecting frame 6: Fixed to the upper end of the fixed mold 7, connecting the fixed mold and the fixed frame 3, and providing an installation position for the injection molding machine 10.

[0051] Fixed mold 7: It works with the first moving mold 5 and the second moving mold 8 to complete the injection molding of the folding fork. The first folding fork groove 11 on its surface and the internal injection channel are the key structures for molding and injection.

[0052] The second moving mold 8 is set on both sides of the first moving mold 5. The third folding fork groove 14 on the surface participates in the molding and can be separated from the first moving mold 5 during demolding, which facilitates the demolding of the folding fork.

[0053] Limiting plate 9: Fixed on the surface of the fixed mold 7, in an "S"-shaped segment, used to limit the movement trajectory of the second moving mold 8 and assist in demolding operation.

[0054] Injection molding machine 10: Installed on mold connecting frame 6, it injects the injection material into the mold gap through the injection channel of fixed mold 7 to complete the injection molding of folding fork.

[0055] First folding fork groove 11: Located on the surface of fixed mold 7, it cooperates with other grooves to form the forming space of the folding fork.

[0056] Connecting block 12: Participates in the forming process of the folding fork, and works together with each groove to complete the forming.

[0057] The second folding fork groove 13 is formed on the surface of the first moving mold 5 and is an important component in the forming of the folding fork.

[0058] The third folding fork groove 14 is formed on the surface of the second moving mold 8 and participates in the forming of the folding fork.

[0059] Slide 15: Located on the side of the first moving mold 5, it provides a track for the sliding rod 16 and ensures the moving direction of the second moving mold 8.

[0060] Slide rod 16: Fixed on the second moving mold 8, slides in the slide groove 15, and cooperates with the return spring 17 to enable the second moving mold 8 to separate smoothly during demolding.

[0061] Return spring 17: Both ends are connected to slide groove 15 and second moving mold 8 respectively, and provide elastic force during demolding, so that the second moving mold 8 moves away from the first moving mold 5.

[0062] Folding fork guide channel 18: It is formed on the surface of the worktable 2 and is used to guide the falling direction of the folding fork after demolding and direct it to the folding fork collection box 21.

[0063] Folding fork collection bucket 19: Fixed on the workbench 2, it collects the falling folding forks and guides them into the folding fork guide channel 18.

[0064] Folding fork baffle 20: Rotatably connected within the folding fork guide channel 18, in a "Y" shape, it diverts the flow of the folding fork and prevents the guide channel from becoming clogged. If clogged, it can be cleared by rotating it.

[0065] Folding fork collection box 21: Located on the upper part of the base 1, it is detachable and used to store folding forks after demolding in an orderly manner, improving the cleanliness and safety of the production site.

[0066] Heating elements (not specified): Installed inside the first moving mold 5, the fixed mold 7, and the second moving mold 8 to preheat the molds and ensure the quality of injection molding.

[0067] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A folding fork injection mold, characterized in that: It includes a base (1) and a fixed mold (7), and a worktable (2) is fixedly connected to the base (1); The folding fork injection molding assembly is set on the workbench (2). The folding fork injection molding assembly includes a fixed frame (3). The fixed frame (3) is fixedly connected to the workbench (2). A hydraulic rod (4) is fixedly connected inside the fixed frame (3). A first moving mold (5) is fixedly connected to the output end of the hydraulic rod (4). A sliding groove (15) is opened on the side of the first moving mold (5). The side of the first moving mold (5) is provided with a second moving mold (8). The end of the second moving mold (8) near the first moving mold (5) is fixedly connected with a slide rod (16). A return spring (17) is sleeved on the surface of the slide rod (16). The two ends of the return spring (17) are fixedly connected to the slide groove (15) and the second moving mold (8) respectively. Multiple limit plates (9) are fixedly connected to the surface of the fixed mold (7). The number of slide grooves (15), slide rods (16) and return springs (17) are four, respectively symmetrically arranged on the left and right sides of the first moving mold (5), and the number of second moving molds (8) is two, respectively symmetrically arranged on the left and right sides of the first moving mold (5).

2. The folding fork injection mold according to claim 1, characterized in that: The folding fork injection molding assembly also includes a mold connecting frame (6), which is fixedly connected to the upper end of the fixed mold (7). The surface of the fixed mold (7) is provided with a plurality of first folding fork grooves (11). The surface of the first moving mold (5) is provided with multiple second folding fork grooves (13), and the surfaces of the two second moving molds (8) are provided with multiple third folding fork grooves (14). The surfaces of the two second moving molds (8) are fixedly connected with multiple second folding fork grooves (13).

3. The folding fork injection mold according to claim 1, characterized in that: There are two folding fork injection molding components, which are symmetrically arranged on the front and rear sides of the fixed mold (7).

4. The folding fork injection mold according to claim 1, characterized in that: Each of the aforementioned limiting plates (9) is divided into two segments and the two segments are in an "S" shape.

5. The folding fork injection mold according to claim 2, characterized in that: Multiple heating tubes are installed inside the first moving mold (5), the fixed mold (7), and the second moving mold (8).

6. The folding fork injection mold according to claim 2, characterized in that: The upper end of the mold connecting frame (6) is fixedly connected to the injection molding machine (10), the mold (7) has an injection channel inside, and the front and rear ends of the mold connecting frame (6) are fixedly connected to the corresponding fixed frame (3).

7. The folding fork injection mold according to claim 1, characterized in that: The surface of the workbench (2) is fixedly connected to a folding fork collection hopper (19), and a folding fork guide groove (18) is opened on the surface of the workbench (2). A folding fork baffle (20) is rotatably connected inside the folding fork guide groove (18), and the folding fork baffle (20) is "Y" shaped.

8. The folding fork injection mold according to claim 1, characterized in that: The upper end of the base (1) is provided with a detachable folding fork collection box (21).

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