Toothbrush forming die

Abstract

The utility model discloses a toothbrush forming die which comprises a lower die fixing plate, die feet are fixedly connected to the four corners of the upper surface of the lower die fixing plate respectively, the upper surfaces of the four die feet are all fixedly connected with the bottom end of a lower die plate, and the toothbrush forming die further comprises an insertion fixing mechanism. The inserting and fixing mechanism comprises a two-way lead screw, a first limiting plate, a baffle, a pull rod, a first spring and a second limiting plate, supporting frames are arranged on the left side and the right side of the lower wall of the lower die plate correspondingly, the two-way lead screw is rotationally connected between the two supporting frames, and the left end and the right end of the two-way lead screw penetrate through the left supporting frame and the right supporting frame correspondingly; according to the toothbrush forming mold, when the mold is assembled, the mold is fastened through the inserting and fixing mechanism, operation becomes simple, the assembling efficiency is improved, external acting force does not need to be applied to the mold during separation, and therefore the service life of the mold is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of toothbrush manufacturing technology, specifically a toothbrush forming mold. Background Technology

[0002] Toothbrushes are an essential item in our daily lives. Their production process is meticulously designed and strictly executed. The toothbrush production process includes steps such as material preparation, bristle preparation, injection molding, and bristle implantation. Among these, injection molding is a key step in making the toothbrush handle, and toothbrush molding molds are required during the injection molding process.

[0003] Before operation, existing toothbrush molding molds typically require workers to tighten the mold with screws. During the injection molding process, external forces are applied to the mold to ensure close contact between the upper and lower mold cores. External forces are also applied to the mold to separate the upper and lower mold cores during mold separation.

[0004] Existing toothbrush forming molds have the following problems: during mold assembly, workers need to use screws to tighten the mold, which is cumbersome and inefficient. Furthermore, external forces need to be applied to the mold during separation, which reduces the mold's lifespan. To address these issues, we propose a toothbrush forming mold. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a toothbrush forming mold. When assembling the mold, the mold is fastened by a plug-in fixing mechanism, which simplifies the operation, improves the assembly efficiency, and does not require external force to be applied to the mold when separating the mold, thereby increasing the service life of the mold. This can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a toothbrush forming mold, including a lower mold fixing plate, with mold feet fixedly connected to the four corners of the upper surface of the lower mold fixing plate, the upper surfaces of the four mold feet being fixedly connected to the bottom end of a lower template, and also including an insertion fixing mechanism;

[0007] The insertion and fixing mechanism includes a two-way screw rod, a limiting plate 1, a baffle, a pull rod, a spring 1, and a limiting plate 2. Support frames are provided on both the left and right sides of the lower wall of the lower template. A two-way screw rod is rotatably connected between the two support frames. The left and right ends of the two-way screw rod pass through the left and right support frames respectively. Baffles are threadedly connected to the left and right sides of the middle of the two-way screw rod. Pull rods are slidably connected to the front and rear sides of the baffles. A limiting plate 1 is provided at the end of the pull rod near the center of the lower template. The limiting plate 1 is located between the two baffles. The pull rod is slidably connected to the horizontally adjacent support frame. The pull rod extends into the interior of the horizontally adjacent support frame. A limiting plate 2 is provided at the right end of the outer surface of the pull rod. A spring 1 is movably sleeved on the outside of the pull rod located between the inner wall of the support frame and the limiting plate 2.

[0008] The system includes an upper template, and slots are provided at the four corners of the lower template and the support frame. A locking post is fixedly connected to the four corners of the lower surface of the upper template. The slots are inserted into the vertically adjacent locking posts. Pull rods extend into the slots and engage with the locking holes at the bottom of the locking posts. During mold assembly, the mold is secured using the insertion and fixing mechanism, simplifying operation, improving assembly efficiency, and eliminating the need for external force during mold separation, thus increasing the mold's service life.

[0009] Furthermore, the insertion and fixing mechanism also includes a motor. The motor is fixedly connected to the right end of the inner lower surface of the lower template. The left end of the motor's output shaft is fixedly connected to the right end of the bidirectional lead screw. The input end of the motor is electrically connected to the output end of an external controller to facilitate the separation of the mold.

[0010] Furthermore, a lower mold core is fixedly connected to the center of the upper surface of the lower template, and an upper mold core is provided at the center of the lower surface of the upper template, which can be used to manufacture a toothbrush handle.

[0011] Furthermore, the upper surface of the upper template is fixedly connected to support rods around the perimeter by fixed seats. A docking plate is slidably connected between the middle of the four support rods. A support platform is fixedly connected to the upper end of the support rod. A spring is movably sleeved on the outside of the support rod located between the upper surface of the docking plate and the support platform to facilitate the injection of raw materials.

[0012] Furthermore, electric telescopic rods are fixedly connected to both the left and right sides of the upper surface of the support platform. The lower ends of the telescopic shafts of the electric telescopic rods are fixedly connected to the upper surface of the docking plate. An injection nozzle is provided at the center opening of the support platform. The lower end of the injection nozzle passes through the circular opening in the middle of the docking plate. The injection nozzle is vertically aligned with the upper mold core. The input end of the electric telescopic rod is electrically connected to the output end of an external controller, which can control the movement of the injection nozzle.

[0013] Furthermore, an ejector plate is movably connected to the upper surface of the lower mold fixing plate, an ejector rod is fixedly connected to the center of the lower surface of the ejector plate, and ejector pins are fixedly connected to both the front and rear sides of the upper surface of the ejector plate. The upper end of the ejector pin penetrates the lower mold plate and the lower mold core. Springs are movably sleeved on the outside of the ejector pin located between the upper surface of the ejector plate and the lower mold plate, which can eject the formed toothbrush handle.

[0014] Furthermore, the lower ends of the snap-fit ​​posts are all smooth bevels, which facilitate snap-fitting.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This toothbrush forming mold has the following advantages:

[0016] During mold assembly, the pull rod, under the action of spring one, engages the locking post in the slot, resulting in a tight fit between the upper and lower mold cores. This simplifies operation and improves assembly efficiency. When separating the mold, the baffle moves the pull rod to the center of the lower mold plate through the limiting plate one, thereby releasing the engagement between the pull rod and the locking post. No external force needs to be applied to the mold, thus increasing the service life of the mold. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention from the left view;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0020] In the diagram: 1. Lower mold fixing plate, 2. Mold foot, 3. Lower template, 4. Insertion fixing mechanism, 41. Two-way lead screw, 42. Limiting plate one, 43. Baffle, 44. Pull rod, 45. Spring one, 46. Limiting plate two, 47. Motor, 5. Lower mold core, 6. Upper mold core, 7. Upper template, 8. Connecting plate, 9. Support platform, 10. Electric telescopic rod, 11. Injection nozzle, 12. Ejector plate, 13. Snap-fit ​​post, 14. Slot, 15. Ejector rod, 16. Fixing seat, 17. Spring two, 18. Support rod, 19. Ejector post, 20. Spring three. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3This embodiment provides a technical solution: a toothbrush forming mold, including a lower mold fixing plate 1, with mold feet 2 fixedly connected to the four corners of the upper surface of the lower mold fixing plate 1, and the upper surfaces of the four mold feet 2 being fixedly connected to the bottom end of a lower template 3. It also includes an insertion fixing mechanism 4, with an ejector plate 12 movably connected to the upper surface of the lower mold fixing plate 1, and an ejector rod 15 fixedly connected to the center of the lower surface of the ejector plate 12. The outer surface of the ejector rod 15 is slidably connected to the sliding opening in the middle of the lower mold fixing plate 1. Top posts 19 are fixedly connected to both the front and rear sides of the surface. The upper end of the top post 19 passes through the lower mold plate 3 and the lower mold core 5. Springs 17 are movably sleeved on the outside of the top post 19 located between the upper surface of the ejector plate 12 and the lower mold plate 3. Then, the injection molding machine is operated to move the ejector plate 12 and the top post 19 upward by moving the ejector rod 15 upward, so as to eject the molded toothbrush handle out of the lower mold core 5. After the toothbrush handle is ejected, the ejector plate 12 will return to the initial position under the action of the springs 17, waiting for the start of the next injection.

[0023] The insertion and fixing mechanism 4 includes a bidirectional screw rod 41, a first limiting plate 42, a baffle 43, a pull rod 44, a first spring 45, and a second limiting plate 46. Support frames are provided on both the left and right sides of the lower wall of the lower template 3. A bidirectional screw rod 41 is rotatably connected between the two support frames. The left and right ends of the bidirectional screw rod 41 pass through the left and right support frames respectively. The middle of the bidirectional screw rod 41 is threadedly connected to the left and right sides of the left and right sides respectively. Pull rods 44 are slidably connected to the front and rear sides of the baffles 43. A first limiting plate 46 is provided at the end of the pull rod 44 near the center of the lower template 3. 2. Limiting plates 42 are located between two baffles 43. Pull rods 44 are slidably connected to the laterally adjacent support frames, extending into the interior of the laterally adjacent support frames. A second limiting plate 46 is provided on the right end of the outer surface of each pull rod 44. Springs 45 are movably sleeved on the outside of each pull rod 44 located between the inner wall of the support frame and the second limiting plate 46. The insertion and fixing mechanism 4 also includes a motor 47. A motor 47 is fixedly connected to the right end of the inner lower surface of the lower template 3. The left end of the output shaft of the motor 47 is fixedly connected to the right end of the bidirectional lead screw 41. The input terminal of motor 47 is electrically connected to the output terminal of an external controller. At this time, the operator turns on motor 47, causing the bidirectional lead screw 41 to rotate, thereby moving the baffle 43. Sufficient space is left between the baffle 43 and the limiting plate 42 to facilitate the engagement of the pull rod 44 with the locking pin 13. Then, the locking pins 13 are inserted into the vertically adjacent slots 14. The smooth inclined surface at the lower end of the locking pin 13 pushes the pull rod 44 downwards towards the center of the template 3 until the side notch of the locking pin 13 coincides with the central axis of the pull rod 44. Under the action of spring 45, the locking post 13 will be locked into the slot 14, and the upper mold core 6 and the lower mold core 5 will be tightly fitted together, and injection molding can begin. After injection molding is completed, the operator turns on the motor 47 through the external controller. The output shaft of the motor 47 drives the bidirectional lead screw 41 to rotate, which causes the baffle 43 to move to the middle of the lower mold plate 3. The baffle 43 drives the pull rod 44 to move to the middle of the lower mold plate 3 through the limiting plate 42, which causes the locking relationship between the pull rod 44 and the locking post 13 to be released, making it easy for the upper mold core 6 and the lower mold core 5 to separate.

[0024] The system includes an upper template 7, a lower template 3, and a support frame, all of which have slots 14 at their four corners. Each corner of the lower surface of the upper template 7 is fixedly connected to a locking post 13. Each slot 14 is inserted into a vertically adjacent locking post 13. Pull rods 44 extend into the slots 14 and engage with the locking slots at the bottom of the locking posts 13. A lower mold core 5 is fixedly connected to the center of the upper surface of the lower template 3. An upper mold core 6 is located at the center of the lower surface of the upper template 7. Support rods 18 are fixedly connected to the four sides of the upper surface of the upper template 7 via fixed seats 16. A mating plate 8 is slidably connected between the middle parts of the four support rods 18. A support platform 9 is fixedly connected to the upper end of each support rod 18. A spring 20 is movably sleeved on the outside of each support rod 18 located between the upper surface of the mating plate 8 and the support platform 9. Electric telescopic rods 10 are fixedly connected to the left and right sides of the upper surface of the support platform 9. The lower ends of the telescopic shafts of the electric telescopic rods 10 are fixedly connected to the upper surface of the mating plate 8. An injection nozzle is located at the center opening of the support platform 9. 11. The lower end of the injection nozzle 11 passes through the round opening in the middle of the docking plate 8. The injection nozzle 11 corresponds vertically to the upper mold core 6. The input end of the electric telescopic rod 10 is electrically connected to the output end of the external controller. The lower ends of the locking posts 13 are all smooth slopes. When manufacturing the toothbrush handle, the operator places the toothbrush molding mold into the injection molding machine. Then, the operator controls the electric telescopic rod 10 through the external controller, so that the telescopic shaft of the electric telescopic rod 10 drives the docking plate 8 to move downward. The docking plate 8 contacts the upper mold plate 7 and applies a certain downward pressure to it, which facilitates subsequent mold closing and forming. At this time, the lower end of the injection nozzle 11 still passes through the round opening in the middle of the docking plate 8 (the reserved length allows its bottom end to always be inside the upper mold core 6). The bottom end of the injection nozzle 11 is inside the upper mold core 6. At this time, the spring 3 20 is in a stretched state. At the same time, the electric telescopic rod 10 stops working. The docking plate 8 will move upward under the action of the spring 3 20, driving the injection nozzle 11 back to the initial position.

[0025] The working principle of the toothbrush forming mold provided by this utility model is as follows: When manufacturing the toothbrush handle, the worker places the toothbrush forming mold into the injection molding machine. Then, the worker controls the electric telescopic rod 10 through an external controller, so that the telescopic shaft of the electric telescopic rod 10 drives the docking plate 8 to move downward. The docking plate 8 contacts the upper mold plate 7 and applies a certain downward pressure to it, which facilitates subsequent mold closing and forming. At this time, the lower end of the injection nozzle 11 still passes through the round opening in the middle of the docking plate 8 (the reserved length allows its bottom end to always be inside the upper mold core 6). The bottom end of the injection nozzle 11 is located inside the upper mold core 6. At this time, the spring 3 20 is in a stretched state. The operator turns on the motor 47 to rotate the bidirectional lead screw 41, thereby driving the baffle 43 to move, leaving enough space between the baffle 43 and the limiting plate 1 42 to facilitate the engagement between the pull rod 44 and the locking post 13. Then, the locking posts 13 are inserted into the vertically adjacent slots 14 respectively. The smooth inclined surface at the lower end of the locking post 13 will push the pull rod 44 downward to the middle of the mold plate 3 until the side locking slot of the locking post 13 engages with the pull rod 44. When the central axes of the two molds coincide, the pull rod 44 will engage with the latch at the bottom of the locking post 13 under the action of the spring 45, locking the locking post 13 into the slot 14, and tightly fitting the upper mold core 6 and the lower mold core 5 together, thus starting injection molding. After injection molding is completed, the operator turns on the motor 47 in reverse through the external controller. The output shaft of the motor 47 drives the bidirectional lead screw 41 to rotate, thereby causing the baffle 43 to move towards the middle of the lower mold plate 3. The baffle 43 drives the pull rod 44 to move towards the middle of the lower mold plate 3 through the limiting plate 42, thus causing the pull rod 44 to engage with the locking post 13. The locking relationship between the connecting posts 13 is released, facilitating the separation of the upper mold core 6 and the lower mold core 5. Then, the injection molding machine is controlled to move the ejector rod 15 upward, driving the ejector plate 12 and ejector post 19 upward, ejecting the molded toothbrush handle from the lower mold core 5. At the same time, the electric telescopic rod 10 stops working, and the connecting plate 8 will move upward under the action of the third spring 20, driving the injection nozzle 11 back to its initial position. After the toothbrush handle is ejected, the ejector plate 12 will return to its initial position under the action of the second spring 17, waiting for the start of the next injection.

[0026] It is worth noting that the motor 47 disclosed in the above embodiments can be Y200L2-2, and the external controller controls the operation of the motor 47 and the electric telescopic rod 10 using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A toothbrush forming mold, comprising a lower mold fixing plate (1), wherein mold feet (2) are fixedly connected to the four corners of the upper surface of the lower mold fixing plate (1), and the upper surfaces of the four mold feet (2) are all fixedly connected to the bottom end of a lower template (3), characterized in that: It also includes a plug-in fixing mechanism (4); The insertion and fixing mechanism (4) includes a two-way screw rod (41), a first limiting plate (42), a baffle (43), a pull rod (44), a first spring (45), and a second limiting plate (46). The lower template (3) has support frames on both the left and right sides of its lower wall. The two support frames are rotatably connected by a two-way screw rod (41). The left and right ends of the two-way screw rod (41) pass through the left and right support frames respectively. The middle of the two-way screw rod (41) is threaded with baffles (43) on both the left and right sides respectively. The front and rear sides of the baffles (43) are... A sliding connection is provided with a tie rod (44). A limiting plate (42) is provided at one end of the tie rod (44) near the center of the lower template (3). The limiting plate (42) is located between two baffles (43). The tie rod (44) is slidably connected to the horizontally adjacent support frame. The tie rod (44) extends into the horizontally adjacent support frame. A limiting plate (46) is provided at the right end of the outer surface of the tie rod (44). A spring (45) is movably sleeved on the outside of the tie rod (44) located between the inner wall of the support frame and the limiting plate (46). Among them: it also includes an upper template (7), and the lower template (3) and the support frame are all provided with slots (14) at the four corners. The lower surface of the upper template (7) is fixedly connected with the four corners of the slots (13). The slots (14) are all inserted into the vertically adjacent slots (13). The pull rods (44) extend into the interior of the slots (14) and are engaged with the slots at the bottom of the slots (13).

2. The toothbrush forming mold according to claim 1, characterized in that: The insertion and fixing mechanism (4) also includes a motor (47). The motor (47) is fixedly connected to the right end of the inner lower surface of the lower template (3). The left end of the output shaft of the motor (47) is fixedly connected to the right end of the bidirectional lead screw (41). The input end of the motor (47) is electrically connected to the output end of the external controller.

3. The toothbrush forming mold according to claim 1, characterized in that: The lower mold core (5) is fixedly connected to the center of the upper surface of the lower mold (3), and the upper mold core (6) is provided at the center of the lower surface of the upper mold (7).

4. The toothbrush forming mold according to claim 3, characterized in that: The upper surface of the upper template (7) is fixedly connected to support rods (18) by fixing seats (16) around the four sides. A docking plate (8) is slidably connected between the middle of the four support rods (18). A support platform (9) is fixedly connected to the upper end of the support rod (18). A spring three (20) is movably sleeved on the outside of the support rod (18) located between the upper surface of the docking plate (8) and the support platform (9).

5. A toothbrush forming mold according to claim 4, characterized in that: Electric telescopic rods (10) are fixedly connected to the left and right sides of the upper surface of the support platform (9). The lower ends of the telescopic shafts of the electric telescopic rods (10) are fixedly connected to the upper surface of the docking plate (8). An injection nozzle (11) is provided at the center opening of the support platform (9). The lower end of the injection nozzle (11) passes through the round opening in the middle of the docking plate (8). The injection nozzle (11) corresponds to the upper mold core (6) in the upper and lower positions. The input end of the electric telescopic rod (10) is electrically connected to the output end of the external controller.

6. A toothbrush forming mold according to claim 1, characterized in that: The upper surface of the lower mold fixing plate (1) is movably connected to an ejector plate (12), and the center of the lower surface of the ejector plate (12) is fixedly connected to an ejector rod (15). The outer surface of the ejector rod (15) is slidably connected to the sliding opening in the middle of the lower mold fixing plate (1). The front and rear sides of the upper surface of the ejector plate (12) are fixedly connected to an ejector post (19). The upper end of the ejector post (19) passes through the lower mold plate (3) and the lower mold core (5). The ejector post (19) located between the upper surface of the ejector plate (12) and the lower mold plate (3) is movably fitted with a spring (17).

7. A toothbrush forming mold according to claim 1, characterized in that: The lower ends of the snap-fit ​​posts (13) are all smooth slopes.

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