Large municipal garbage can injection mold with circulating cooling mechanism

Abstract

The utility model provides a large municipal garbage can injection mold with a circulating cooling mechanism, and belongs to the technical field of molds. The pedal type barrel bottom forming die comprises an upper die plate, a middle die plate and a lower die plate, a forming insert inserted into the middle die plate is arranged on the lower die plate, a pedal type barrel bottom forming structure is arranged on the upper die plate, a pedal mounting position forming structure is arranged on the middle die plate, and a pedal mounting shaft mounting hole forming structure is further arranged on the upper die plate. The pedal type can bottom forming structure can form supporting leg structures at the can bottom during injection molding of the garbage can, the pedal mounting shaft mounting hole forming structure can form mounting holes used for mounting pedal mounting shafts between the supporting leg structures, and the pedal mounting position forming structure can form pedal mounting positions on the side portion of the garbage can. Therefore, a structure required for mounting the pedal can be formed at the bottom of the garbage can through one-time injection molding, post-processing is not needed, procedures are few, and efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for a large-scale municipal garbage can with a circulating cooling mechanism. Background Art

[0002] Garbage cans with a pedal opening mechanism are very popular in the market and have the requirement of being convenient to use. Setting such a mechanism on a municipal garbage can can greatly reduce the labor intensity of workers. However, since municipal garbage cans are injection-molded by molds, and the molds in the prior art can only inject the prototype of the municipal garbage can, the pedal installation structure at the bottom of the municipal garbage can needs to be formed through later processing such as cutting, with cumbersome processes, time-consuming, and low production efficiency.

[0003] For example, a Chinese patent discloses a mold for a large-scale municipal plastic garbage can [Application No.: 202122130982.4], which includes an injection lower mold and an injection upper mold. A middle template is provided between the injection lower mold and the injection upper mold. A flip-top cover forming assembly is provided at the bottom of the middle template, and a bottom integrally formed part is provided at the top of the middle template. The position of the bottom integrally formed part corresponds to that of the flip-top cover forming assembly. A supporting part is provided at the bottom of the injection lower mold, and an injection part is provided above the injection upper mold. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an injection mold for a large-scale municipal garbage can with a circulating cooling mechanism in view of the above problems.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An injection mold for a large-scale municipal garbage can with a circulating cooling mechanism includes an upper template, a middle template, and a lower template. A forming insert inserted into the middle template is provided on the lower template. A pedal-type bottom forming structure is provided on the upper template. A pedal installation position forming structure is provided on the middle template. A pedal installation shaft installation hole forming structure is also provided on the upper template.

[0007] In the above injection mold for a large-scale municipal garbage can with a circulating cooling mechanism, the pedal-type bottom forming structure includes two support foot forming grooves symmetrically provided on the upper template. A pedal installation shaft installation position forming block is provided between the two support foot forming grooves. The pedal installation shaft installation position forming block is inserted into a pedal installation shaft installation position forming groove at the top of the forming insert.

[0008] In the above injection mold for a large-scale municipal garbage can with a circulating cooling mechanism, the pedal installation shaft installation position forming block is integrally formed with the upper template.

[0009] In the above-mentioned large municipal trash can injection mold with a circulating cooling mechanism, the pedal mounting shaft mounting hole forming structure includes two horizontally arranged pedal mounting shaft mounting hole forming rods, the two pedal mounting shaft mounting hole forming rods are slidably arranged on the pedal mounting shaft mounting position forming block and are respectively inserted into the two supporting foot forming grooves, and the pedal mounting shaft mounting hole forming structure also includes a double-rod synchronous core pulling assembly connected to the two pedal mounting shaft mounting hole forming rods.

[0010] In the above-mentioned large municipal trash can injection mold with a circulating cooling mechanism, the double-rod synchronous core-pulling assembly includes a core-pulling slider slidably arranged in a slider groove on the top of the pedal mounting shaft mounting position molding block and a translation assembly connected to the core-pulling slider, and the two sides of the core-pulling slider are respectively connected to the pedal mounting shaft mounting hole molding rod through an oblique guide structure.

[0011] In the above-mentioned large municipal trash can injection mold with a circulating cooling mechanism, the inclined guide structure includes a guide groove obliquely arranged on the inclined surface of the side of the core-pulling slider, and the upper and lower ends of the opening side of the guide groove are protruding with card plates, the pedal mounting shaft mounting hole forming rod is inserted into the guide groove and the upper and lower sides of the guide groove are provided with card slots corresponding to the card plate.

[0012] In the above-mentioned large municipal trash can injection mold with a circulating cooling mechanism, the translation assembly includes a translation driver horizontally fixed on the upper mold plate, the output shaft of the translation driver is vertically arranged with the pedal mounting shaft mounting hole forming rod, and the output shaft of the translation driver is connected to the core-pulling slider via a detachable connecting structure.

[0013] In the above-mentioned large municipal trash can injection mold with a circulating cooling mechanism, the detachable connection structure includes a push-pull groove that passes through the core-pulling slider from top to bottom, the push-pull groove has a T-shaped cross-section, and the output shaft end of the translation drive is fixedly connected with a T-shaped joint inserted into the push-pull groove.

[0014] In the above-mentioned large municipal trash can injection mold with a circulating cooling mechanism, the pedal mounting position molding structure includes a pedal mounting position molding groove which is recessed inwardly and arranged on the front side of the molding insert, and the pedal mounting position molding groove is connected to the pedal mounting shaft mounting position molding groove, and a pedal mounting position molding block which is inserted into the pedal mounting position molding groove is protruded on the inner wall of the intermediate template.

[0015] In the above-mentioned large municipal trash can injection mold with a circulating cooling mechanism, a circulating cooling mechanism is also provided between the upper mold plate and the middle mold plate, and the circulating cooling mechanism includes an upper cooling channel arranged in the upper mold plate and a lower cooling channel arranged in the middle mold plate, and the upper cooling channel and the lower cooling channel are connected.

[0016] Compared with the existing technologies, the advantages of the present utility model are as follows:

[0017] 1. The pedal-type bottom forming structure of the bucket can form a support foot structure at the bottom of the trash can during injection molding, the forming structure of the mounting hole for the pedal mounting shaft can form a mounting hole for mounting the pedal mounting shaft between the support foot structures, and the forming structure of the pedal mounting position can form a pedal mounting position at the side of the trash can, so that the structure required for installing the pedal can be injection molded at the bottom of the trash can at one time, without post-processing, with fewer processes and high efficiency.

[0018] 2. By arranging a forming block for the pedal mounting shaft mounting position that can be inserted into the forming groove of the pedal mounting shaft mounting position at the middle position of the upper template, a mounting channel for the pedal mounting shaft can be formed between the two support feet, and the two support foot forming grooves formed after arranging the forming block for the pedal mounting shaft mounting position can also directly form the two support feet at the bottom of the bucket.

[0019] Other advantages, objectives and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a sectional view of the present utility model;

[0021] Figure 2 is a schematic structural diagram of the upper template;

[0022] Figure 3 is a schematic structural diagram of the middle template;

[0023] Figure 4 is a partial exploded view of the double-rod synchronous core-pulling assembly.

[0024] In the figure, upper template 1, middle template 2, lower template 3, forming insert 4, pedal-type bottom forming structure 5, forming structure of the mounting hole for the pedal mounting shaft 6, support foot forming groove 7, forming block for the pedal mounting shaft mounting position 8, forming groove of the pedal mounting shaft mounting position 9, forming rod of the mounting hole for the pedal mounting shaft 10, double-rod synchronous core-pulling assembly 11, slider groove 12, core-pulling slider 13, guiding chute 14, clamping plate 15, clamping groove 16, translation driver 17, pushing and pulling chute 18, T-shaped joint 19, forming groove of the pedal mounting position 20, forming block of the pedal mounting position 21, upper cooling channel 22, lower cooling channel 23. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Such as Figures 1-4As shown, a large-scale municipal trash can injection mold with a circulating cooling mechanism includes an upper template 1, an intermediate template 2, and a lower template 3. A forming insert 4 inserted into the intermediate template 2 is provided on the lower template 3. A pedal-type bottom forming structure 5 is provided on the upper template 1. A pedal mounting position forming structure is provided on the intermediate template 2. A pedal mounting shaft mounting hole forming structure 6 is also provided on the upper template 1.

[0026] In the present utility model, the pedal-type bottom forming structure 5 can form a support foot structure at the bottom of the trash can during injection molding. The pedal mounting shaft mounting hole forming structure 6 can form a mounting hole for mounting the pedal mounting shaft between the support foot structures. The pedal mounting position forming structure can form a pedal mounting position on the side of the trash can, so that the structure required for mounting the pedal can be injection molded at the bottom of the trash can at one time, without post-processing, with fewer processes and high efficiency.

[0027] Specifically, the pedal-type bottom forming structure 5 includes two support foot forming grooves 7 symmetrically arranged on the upper template 1. A pedal mounting shaft mounting position forming block 8 is arranged between the two support foot forming grooves 7. The pedal mounting shaft mounting position forming block 8 is inserted into a pedal mounting shaft mounting position forming groove 9 at the top of the forming insert 4. By arranging the pedal mounting shaft mounting position forming block 8 that can be inserted into the pedal mounting shaft mounting position forming groove 9 at the middle position of the upper template, a pedal mounting shaft mounting channel can be formed between the two support feet. The two support foot forming grooves 7 formed after arranging the pedal mounting shaft mounting position forming block 8 can also directly form two support feet at the bottom of the trash can.

[0028] Preferably, the pedal mounting shaft mounting position forming block 8 is integrally formed with the upper template 1, which is convenient for the production of the upper template.

[0029] Specifically, the pedal mounting shaft mounting hole forming structure 6 includes two horizontally arranged pedal mounting shaft mounting hole forming rods 10. The two pedal mounting shaft mounting hole forming rods 10 are slidably arranged on the pedal mounting shaft mounting position forming block 8 and are respectively inserted into the two support foot forming grooves 7. The pedal mounting shaft mounting hole forming structure 6 also includes a double-rod synchronous core-pulling assembly 11 connected to the two pedal mounting shaft mounting hole forming rods 10. The two pedal mounting shaft mounting hole forming rods 10 can form two corresponding pedal mounting shaft mounting holes on the inner sides of the two support feet during injection molding. After the product is injection molded, the double-rod synchronous core-pulling assembly 11 can realize the automatic core-pulling of the two pedal mounting shaft mounting hole forming rods 10.

[0030] Specifically, the double-rod synchronous core-pulling assembly 11 includes a core-pulling slider 13 slidably disposed in a slider groove 12 at the top of a forming block 8 at the installation position of a pedal mounting shaft, and a translation assembly connected to the core-pulling slider 13. The two sides of the core-pulling slider 13 are respectively connected to a forming rod 10 of a pedal mounting shaft mounting hole through an inclined guiding structure. The translation assembly can drive the core-pulling slider 13 to reciprocate in the slider groove 12, and the movement of the core-pulling slider 13 can drive the forming rod 10 of the pedal mounting shaft mounting hole to move towards or away from the support leg through the inclined guiding structures on both sides, so as to realize the automatic core-pulling of the forming rod 10 of the pedal mounting shaft mounting hole.

[0031] Specifically, the inclined guiding structure includes a guiding chute 14 inclinedly disposed on an inclined surface on the side of the core-pulling slider 13. Clamping plates 15 are protrudingly provided at the upper and lower ends of the opening side of the guiding chute 14. The forming rod 10 of the pedal mounting shaft mounting hole is inserted into the guiding chute 14, and clamping grooves 16 corresponding to the clamping plates 15 are provided on the upper and lower sides of the guiding chute 14. When the core-pulling slider 13 moves, the pushing and pulling of the forming rod 10 of the pedal mounting shaft mounting hole can be realized through the cooperation of the guiding chute 14, the clamping plates and the clamping grooves 16, so that the forming rod 10 of the pedal mounting shaft mounting hole can move towards or away from the support leg.

[0032] Specifically, the translation assembly includes a translation driver 17 horizontally fixed on the upper template 1. The output shaft of the translation driver 17 is vertically arranged with respect to the forming rod 10 of the pedal mounting shaft mounting hole. The output shaft of the translation driver 17 is connected to the core-pulling slider 13 through a detachable connection structure. The translation driver 17 can drive the core-pulling slider 13 to reciprocate in the slider groove. Using the detachable connection structure to connect the output shaft of the translation driver 17 and the core-pulling slider 13 can facilitate disassembly.

[0033] Those skilled in the art should understand that the translation driver can be an oil cylinder, a cylinder or a linear motor, etc.

[0034] Specifically, the detachable connection structure includes a push-pull chute 18 penetrating through the core-pulling slider 13 up and down. The cross-section of the push-pull chute 18 is T-shaped. A T-shaped joint 19 inserted into the push-pull chute 18 is fixedly connected to the end of the output shaft of the translation driver 17. The T-shaped joint 19 cooperating with the T-shaped cross-section of the push-pull chute can realize the pushing and pulling of the core-pulling slider by the translation driver, and sliding the T-shaped joint 19 up and down can disengage the translation driver and the core-pulling slider.

[0035] Specifically, the pedal mounting position forming structure includes a pedal mounting position forming groove 20 recessed inwardly on the front side of the forming insert 4. The pedal mounting position forming groove 20 is connected to the pedal mounting shaft mounting position forming groove 9. A pedal mounting position forming block 21 protruding from the inner wall of the intermediate template 2 is inserted into the pedal mounting position forming groove 20. Inserting the pedal mounting position forming block 21 into the pedal mounting position forming groove 20 can form a pedal mounting position connected to the pedal mounting shaft mounting channel on the side of the trash can.

[0036] Preferably, a circulating cooling mechanism is further provided between the upper template 1 and the intermediate template 2. The circulating cooling mechanism includes an upper cooling flow channel 22 provided in the upper template 1 and a lower cooling flow channel 23 provided in the intermediate template 2. The upper cooling flow channel 22 and the lower cooling flow channel 23 are connected. After injecting coolant into the upper cooling flow channel 22, the position of the support feet of the trash can can be cooled. The coolant in the upper cooling flow channel 22 can flow into the lower cooling flow channel 23 to cool the position of the pedal mounting position of the trash can, which can reduce the need for cooling in and out pipelines.

[0037] The working principle of the present utility model is as follows: The pedal-type bottom forming structure 5 can form a support foot structure at the bottom of the trash can during injection molding. The pedal mounting shaft mounting hole forming structure 6 can form mounting holes for installing the pedal mounting shaft between the support foot structures. The pedal mounting position forming structure can form a pedal mounting position on the side of the trash can, so that the structure required for installing the pedal can be injection molded at one time at the bottom of the trash can, without post-processing, with few processes and high efficiency.

[0038] By arranging a pedal mounting shaft mounting position forming block 8 that can be inserted into the forming groove 9 of the pedal mounting shaft mounting position in the middle position of the upper template, a pedal mounting shaft mounting channel can be formed between the two support feet. The two support foot forming grooves 7 formed after arranging the pedal mounting shaft mounting position forming block 8 can also directly form two support feet at the bottom of the bucket. When injecting plastic, two pedal mounting shaft mounting hole forming rods 10 can form two corresponding pedal mounting shaft mounting holes on the inner sides of the two support feet. After the product is injection-molded, the automatic core pulling of the two pedal mounting shaft mounting hole forming rods 10 can be realized through the double-rod synchronous core pulling assembly 11. The translation assembly can drive the core pulling slider 13 to reciprocate in the slider groove 12. The movement of the core pulling slider 13 can drive the pedal mounting shaft mounting hole forming rod 10 to move towards or away from the support feet through the inclined guiding structures on both sides, so as to realize the automatic core pulling of the pedal mounting shaft mounting hole forming rod 10. When the core pulling slider 13 moves, the pushing and pulling of the pedal mounting shaft mounting hole forming rod 10 can be realized through the cooperation of the guiding chute 14 and the clamping plate and the clamping groove 16, so that the pedal mounting shaft mounting hole forming rod 10 can move towards or away from the support feet. The translation driver 17 can drive the core pulling slider 13 to reciprocate in the slider groove. Adopting a detachable connection structure to connect the output shaft of the translation driver 17 and the core pulling slider 13 can facilitate disassembly. The T-shaped joint 19 and the T-shaped pushing and pulling chute with a T-shaped cross-section can realize the pushing and pulling of the translation driver on the core pulling slider, and sliding the T-shaped joint 19 up and down can disengage the translation driver and the core pulling slider;

[0039] Inserting the pedal mounting position forming block 21 into the pedal mounting position forming groove 20 can form a pedal mounting position connected to the pedal mounting shaft mounting channel on the side of the trash can. After injecting coolant into the upper cooling channel 22, the position of the support feet of the trash can can be cooled. The coolant in the upper cooling channel 22 can flow into the lower cooling channel 23 to cool the position of the pedal mounting position of the trash can, which can reduce the need for cooling inlet and outlet pipelines.

[0040] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0041] Although the upper template 1, the middle template 2, the lower template 3, the forming insert 4, the pedal-type bottom forming structure 5, the forming structure of the pedal mounting shaft mounting hole 6, the support foot forming groove 7, the forming block 8 of the pedal mounting shaft mounting position, the forming groove 9 of the pedal mounting shaft mounting position, the forming rod 10 of the pedal mounting shaft mounting hole, the double-rod synchronous core-pulling assembly 11, the slide block groove 12, the core-pulling slide block 13, the guiding slide groove 14, the clamping plate 15, the clamping groove 16, the translation driver 17, the push-pull slide groove 18, the T-shaped joint 19, the forming groove 20 of the pedal mounting position, the forming block 21 of the pedal mounting position, the upper cooling flow channel 22, the lower cooling flow channel 23, etc. are used more frequently in this text, the use of these terms is only for more convenient description and explanation of the essence of the present utility model; interpreting them as any kind of additional limitation is contrary to the spirit of the present utility model.

Claims

1. A large municipal trash can injection mold with a circulating cooling mechanism, comprising an upper mold plate (1), a middle mold plate (2) and a lower mold plate (3), wherein the lower mold plate (3) is provided with a molding insert (4) inserted into the middle mold plate (2), characterized in that: The upper template (1) is provided with a pedal-type barrel bottom forming structure (5), the middle template (2) is provided with a pedal mounting position forming structure, and the upper template (1) is also provided with a pedal mounting shaft mounting hole forming structure (6). The pedal-type barrel bottom forming structure (5) comprises two support foot forming grooves (7) symmetrically arranged on the upper template (1), a pedal mounting shaft mounting position forming block (8) is arranged between the two support foot forming grooves (7), and the pedal mounting shaft mounting position forming block (8) is inserted into the pedal mounting shaft mounting position forming groove (9) at the top end of the forming insert (4). The pedal mounting shaft mounting hole forming structure (6) comprises two horizontally arranged pedal mounting shaft mounting hole forming rods (10), the two pedal mounting shaft mounting hole forming rods (10) are slidably arranged on the pedal mounting shaft mounting position forming block (8) and are respectively inserted into two supporting foot forming grooves (7), and the pedal mounting shaft mounting hole forming structure (6) also comprises a double-rod synchronous core pulling assembly (11) connected to the two pedal mounting shaft mounting hole forming rods (10).

2. The large municipal trash can injection mold with circulating cooling mechanism according to claim 1 is characterized in that: The pedal mounting shaft mounting position forming block (8) is integrally formed with the upper template (1).

3. The large municipal trash can injection mold with circulating cooling mechanism according to claim 1, characterized in that: The double-rod synchronous core-pulling assembly (11) comprises a core-pulling slider (13) slidably arranged in a slider groove (12) at the top of a pedal mounting shaft mounting position forming block (8) and a translation assembly connected to the core-pulling slider (13), and the two sides of the core-pulling slider (13) are respectively connected to the pedal mounting shaft mounting hole forming rod (10) through an oblique guide structure.

4. The large municipal trash can injection mold with circulating cooling mechanism according to claim 3, characterized in that: The oblique guide structure comprises a guide slot (14) obliquely arranged on an inclined surface on the side of the core-pulling slider (13); a clamping plate (15) is protruding from the upper and lower ends of the opening side of the guide slot (14); the pedal mounting shaft mounting hole forming rod (10) is inserted into the guide slot (14) and the upper and lower sides of the guide slot (14) are provided with clamping slots (16) corresponding to the clamping plate (15).

5. The large municipal trash can injection mold with circulating cooling mechanism according to claim 3, characterized in that: The translation assembly comprises a translation driver (17) horizontally fixed on the upper template (1), the output shaft of the translation driver (17) is vertically arranged with the pedal mounting shaft mounting hole forming rod (10), and the output shaft of the translation driver (17) is connected to the core-pulling slider (13) via a detachable connection structure.

6. The large municipal trash can injection mold with circulating cooling mechanism according to claim 5, characterized in that: The detachable connection structure comprises a push-pull slot (18) which passes through the core-pulling slider (13) from top to bottom, the push-pull slot (18) has a T-shaped cross section, and the output shaft end of the translation driver (17) is fixedly connected with a T-shaped joint (19) which is inserted into the push-pull slot (18).

7. The large municipal trash can injection mold with circulating cooling mechanism according to claim 1, characterized in that: The pedal installation position forming structure comprises a pedal installation position forming groove (20) which is recessed inwardly and arranged on the front side of the forming insert (4); the pedal installation position forming groove (20) is connected to the pedal installation shaft installation position forming groove (9); and a pedal installation position forming block (21) which is inserted into the pedal installation position forming groove (20) is protruded on the inner wall of the intermediate template (2).

8. The large municipal trash can injection mold with circulating cooling mechanism according to claim 1, characterized in that: A circulating cooling mechanism is also provided between the upper mold plate (1) and the middle mold plate (2), and the circulating cooling mechanism comprises an upper cooling channel (22) provided in the upper mold plate (1) and a lower cooling channel (23) provided in the middle mold plate (2), and the upper cooling channel (22) and the lower cooling channel (23) are connected.

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