Injection mold for box cover of outdoor sorting box

Abstract

The utility model provides an injection mold for a box cover of an outdoor sorting box, and belongs to the technical field of molds. The mold comprises a top plate, an upper mold plate, a lower mold plate, a partition plate and a bottom plate which are sequentially arranged from top to bottom, a forming cavity is formed between the upper mold plate and the lower mold plate, an ejection mechanism is arranged between the lower mold plate and the partition plate, and a bottom glue feeding mechanism is arranged between the partition plate and the bottom plate. The outdoor sorting box cover can be formed in an injection molding mode through the forming cavity between the upper mold plate and the lower mold plate, the inner cooling structure on the detachable insert structure can be used for cooling injection molding liquid in the forming cavity, and the inner cooling structure is arranged on the detachable insert structure so that machining can be facilitated; only the liquid inlet and outlet hole used for supplying cooling liquid to the inner cooling structure needs to be formed in the lower die plate, and the machining difficulty of the inner cooling structure is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of molds and relates to an injection mold for a cover of an outdoor storage box. Background Art

[0002] Outdoor storage boxes are generally molded by injection molding. In the existing technology, the cooling structure of the box cover mold is directly set on the lower template. Due to the large volume of the lower template, it takes a long time and the process is relatively complicated to process the cooling structure on the lower template.

[0003] For example, a Chinese patent discloses an injection mold for a suitcase cover [application number: 201420059081.8], which includes a punch and a die that is gap-matched with the punch; the punch and the die are closed to form a mold cavity for injection molding the suitcase cover; a lower patterned plate is fixed on the convex surface of the punch, and an upper patterned plate is fixed on the bottom surface of the groove of the die; after the punch and the die are closed, the upper patterned plate and the lower patterned plate are matched with each other and have a gap. Utility Model Content

[0004] The purpose of the utility model is to provide an injection mold for an outdoor storage box cover in order to solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A plastic injection mold for an outdoor storage box cover comprises a top plate, an upper template, a lower template, a partition plate and a bottom plate, which are arranged in sequence from top to bottom; a molding cavity is provided between the upper template and the lower template; an ejection mechanism is provided between the lower template and the partition plate; a bottom glue feeding mechanism is provided between the partition plate and the bottom plate; the molding cavity is formed by a combination of an upper molding surface provided on the upper template and a lower molding surface provided on the lower template; a box cover inner slot molding block with a rectangular ring cross section is protruded from the edge of the lower molding surface; a detachable insert structure with an internal cooling structure is provided in the middle of the lower molding surface.

[0007] In the above-mentioned injection mold for the outdoor storage box cover, the detachable insert structure includes a detachable insert, the detachable insert is fixed to the lower mold plate by a plurality of screws, and the internal cooling structure is arranged on the back of the detachable insert.

[0008] In the above-mentioned injection mold for the outdoor storage box cover, the internal cooling structure includes a plurality of cooling grooves recessed inwardly and arranged on the back of the detachable insert and a connecting flow channel connecting the plurality of cooling grooves.

[0009] In the above-mentioned injection mold for the outdoor storage box cover, a lifting channel is formed between the lower template and the partition plate through the upper support block. The ejection mechanism includes a lifting plate and a push rod mounting plate arranged on the upper side of the lifting plate. The two sides of the lifting plate protrude from the lifting channel, and the push rod mounting plate is provided with a push rod.

[0010] In the above-mentioned injection mold for the outdoor storage box cover, the detachable insert is provided with four inner push rod insertion holes distributed in a rectangular shape, and the inner slot forming block of the box cover is provided with a plurality of outer push rod insertion holes.

[0011] In the above-mentioned injection mold for the cover of the outdoor storage box, a reinforcing rib plate forming structure is further provided on the inner slot forming block of the cover.

[0012] In the above-mentioned outdoor storage box cover injection mold, the reinforcing rib plate forming structure includes a plurality of reinforcing rib plate forming grooves arranged along the circumference of the inner slot forming block of the box cover and recessed inwardly, and the outer push rod insertion hole and the reinforcing rib plate forming groove are arranged correspondingly.

[0013] In the above-mentioned injection mold for the outdoor storage box cover, an injection molding plate installation channel is formed between the partition plate and the bottom plate through the lower support block, and the bottom glue feeding mechanism includes an injection molding plate arranged in the injection molding plate installation channel, two injection molding tubes are fixedly connected to the top of the injection molding plate, and injection molding tube installation holes are provided on the lower template and the detachable insert.

[0014] In the above-mentioned injection mold for the box cover of the outdoor storage box, both sides of the inner slot forming block of the box cover are further provided with a cover opening slot forming structure.

[0015] In the above-mentioned outdoor storage box lid injection mold, the lid opening groove forming structure includes an inner concave forming groove recessed inwardly on the outer side wall of the inner slot forming block of the box lid, and a lid opening groove forming block protrudes from the bottom of the inner concave forming groove.

[0016] Compared with the existing technology, the advantages of this utility model are:

[0017] 1. The molding cavity between the upper template and the lower template can be used for injection molding the cover of the outdoor storage box. The internal cooling structure on the detachable insert structure can be used to cool the injection liquid in the molding cavity. The internal cooling structure is arranged on the detachable insert structure for easy processing. Only the inlet and outlet holes for supplying coolant to the internal cooling structure need to be provided on the lower template, which greatly reduces the processing difficulty of the internal cooling structure.

[0018] 2. The inner slot forming block of the box cover can form a rectangular annular groove on the inner side of the outer edge of the box cover, which can be engaged with the top of the box body. The bottom glue feeding mechanism can form the gate on the inner surface of the box cover, thereby reducing the impact of the glue gate on the quality of the outer surface of the box cover. The ejection mechanism can eject the product after injection molding.

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

[0020] Figure 1 It is a schematic diagram of the external structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a structural diagram of the lower template;

[0023] Figure 4 It is a schematic diagram of the local structure of the lower template;

[0024] Figure 5 It is a schematic diagram of the structure of the back side of the removable insert. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 5 As shown, an injection mold for an outdoor storage box cover includes a top plate 1, an upper template 2, a lower template 3, a partition plate 4 and a bottom plate 5 arranged in sequence from top to bottom, a molding cavity 6 is provided between the upper template 2 and the lower template 3, an ejection mechanism 7 is provided between the lower template 3 and the partition plate 4, a bottom glue feeding mechanism 8 is provided between the partition plate 4 and the bottom plate 5, the molding cavity 6 is formed by a combination of an upper molding surface provided on the upper template 2 and a lower molding surface 9 provided on the lower template 3, a box cover inner slot molding block 10 with a rectangular ring cross section is protruding at the edge of the lower molding surface 9, and a detachable insert structure 12 with an internal cooling structure 11 is provided in the middle of the lower molding surface 9.

[0026] In the utility model, the molding cavity between the upper template and the lower template can be used for injection molding the outdoor storage box cover. The internal cooling structure on the detachable insert structure can be used to cool the injection liquid in the molding cavity. The internal cooling structure is arranged on the detachable insert structure, which can be easily processed. Only the inlet and outlet holes for supplying coolant to the internal cooling structure need to be provided on the lower template, which greatly reduces the processing difficulty of the internal cooling structure.

[0027] Secondly, the inner slot forming block 10 of the box cover can form a rectangular annular groove on the inner side of the outer edge of the box cover, and the rectangular annular groove can be engaged with the top of the box body. The bottom glue feeding mechanism 8 can form the gate on the inner surface of the box cover, thereby reducing the influence of the glue gate on the quality of the outer surface of the box cover. The ejection mechanism can eject the product after the product is injection molded.

[0028] Specifically, the removable insert structure 12 includes a removable insert 13, which is fixed to the lower mold plate 3 by a plurality of screws. The internal cooling structure 11 is arranged on the back of the removable insert 13. The removable insert fixed to the lower mold plate 3 by screws can be installed on the lower mold plate after the lower mold plate is installed. The lower mold plate and the removable insert can be manufactured independently. The internal cooling structure 11 is arranged on the removable insert 13, which facilitates processing. Only the inlet and outlet holes for supplying coolant to the internal cooling structure need to be provided on the lower mold plate, which greatly reduces the processing difficulty of the internal cooling structure.

[0029] Specifically, the inner cooling structure 11 includes a plurality of cooling grooves 14 recessed inwardly and arranged on the back of the removable insert 13, and a connecting flow channel 15 connecting the plurality of cooling grooves 14. The connecting flow channel can connect all the cooling grooves on the back of the removable insert, and the coolant can cool the injection liquid in the molding cavity after entering the cooling groove.

[0030] Specifically, a lifting channel 17 is formed between the lower mold plate 3 and the partition plate 4 via the upper support block 16. The ejection mechanism 7 includes a lifting plate 18 and a push rod mounting plate 19 disposed above the lifting plate 18. Both sides of the lifting plate 18 protrude from the lifting channel 17, and a push rod is mounted on the push rod mounting plate 19. The lifting plate protruding from the outside of the lifting channel can be connected to a lifting cylinder, and the push rod mounting plate is used to mount the push rod. When the lifting cylinder drives the lifting plate upward, it can also drive the push rod mounting plate upward, thereby using the push rod to eject the product.

[0031] Specifically, the detachable insert 13 is provided with four inner push rod insertion holes 20 distributed in a rectangular shape, and the box cover inner slot forming block 10 is provided with a plurality of outer push rod insertion holes 21.

[0032] Preferably, combined Figure 3 and Figure 4As shown, the inner slot forming block 10 of the box cover is also provided with a reinforcing rib plate forming structure. The reinforcing rib plate forming structure includes a plurality of reinforcing rib plate forming grooves 22 arranged along the circumference of the inner slot forming block 10 and recessed inwardly. The outer ejector rod insertion holes 21 and the reinforcing rib plate forming grooves 22 are correspondingly arranged. The reinforcing rib plate forming grooves 22 can form protruding reinforcing ribs within the rectangular annular groove, thereby enhancing the connection strength between the outer edge of the box cover and the box cover body. Since the thickness of the box cover is relatively small at the rectangular annular groove, the corresponding arrangement of the outer ejector rod insertion holes 21 and the reinforcing rib plate forming grooves 22 allows the ejector rod to apply thrust to the box cover at the reinforcing rib plate, preventing the thinner part of the box cover body from being damaged by the thrust.

[0033] Specifically, an injection molding plate mounting channel 24 is formed between the partition plate 4 and the bottom plate 5 via the lower support block 23. The bottom glue feeding mechanism 8 includes an injection molding plate 25 disposed within the injection molding plate mounting channel 24. Two injection molding tubes are fixedly connected to the top of the injection molding plate 25. Injection molding tube mounting holes 26 are provided on the lower mold plate 3 and the removable insert 13. The injection molding tubes on the injection molding plate 25 are mounted in the injection molding tube mounting holes. The injection molding plate and the injection molding tubes enable injection of the molding liquid into the molding cavity from the bottom of the molding cavity.

[0034] Specifically, lid opening slot forming structures are provided on both sides of the lid inner slot forming block 10. The lid opening slot forming structures include an inwardly recessed recess 27 provided on the outer side wall of the lid inner slot forming block 10, and a lid opening slot forming block 28 protruding from the bottom of the recess 27. The recess 27 can form an inward recess on the outer edge of the lid, and the lid opening slot forming block can form an inwardly recessed lid opening slot at the bottom of the recess, making it easier to open the lid.

[0035] The working principle of the utility model is as follows: the molding cavity between the upper template and the lower template can be used for injection molding the outdoor storage box cover, the inner cooling structure on the detachable insert structure can be used to cool the injection molding liquid in the molding cavity, the inner cooling structure is arranged on the detachable insert structure, which can be conveniently processed, and only the inlet and outlet holes for supplying coolant to the inner cooling structure need to be provided on the lower template, which greatly reduces the processing difficulty of the inner cooling structure, and the slot forming block 10 in the box cover can form a rectangular annular groove on the inner side of the outer edge of the box cover, which can be engaged with the top of the box body and the bottom The glue feeding mechanism 8 can form the gate on the inner surface of the box cover, thereby reducing the influence of the glue gate on the quality of the outer surface of the box cover. The ejection mechanism can eject the product after the product is injection molded. The detachable insert fixed to the lower template 3 by screws can be installed on the lower template after the lower template is installed. The lower template and the detachable insert can be produced independently. The inner cooling structure 11 is provided on the detachable insert 13, which is convenient for processing. Only the inlet and outlet holes for supplying coolant to the inner cooling structure need to be provided on the lower template, which greatly reduces the processing difficulty of the inner cooling structure.

[0036] The connecting flow channel can be connected to all the cooling grooves on the back of the detachable insert. After the coolant enters the cooling groove, it can cool the injection liquid in the molding cavity.

[0037] The jacking plate protruding to the outside of the jacking channel can be connected to the jacking cylinder, and the jacking rod mounting plate is used to install the jacking rod. The jacking cylinder drives the jacking plate to rise, which can drive the jacking rod mounting plate to rise so that the product can be ejected by using the jacking rod;

[0038] The reinforcing rib forming groove 22 can form a protruding reinforcing rib in the rectangular annular groove, thereby enhancing the connection strength between the outer edge of the box cover and the box cover body. Since the thickness of the box cover is relatively small at the rectangular annular groove, the corresponding arrangement of the outer push rod insertion hole 21 and the reinforcing rib forming groove 22 allows the push rod to exert thrust on the box cover at the reinforcing rib, thereby preventing the thinner part of the box cover body from being damaged by the thrust.

[0039] The injection tube on the injection plate 25 is arranged in the injection tube mounting hole, and the injection liquid can be injected into the molding cavity from the bottom of the molding cavity through the injection plate and the injection tube;

[0040] The inner concave portion forming groove 27 can form an inner concave portion on the outer edge of the box cover, and the cover opening groove forming block can form an inwardly recessed cover opening groove at the bottom of the inner concave portion to facilitate opening the box cover.

[0041] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. An injection mold for an outdoor storage box cover, comprising a top plate (1), an upper template (2), a lower template (3), a partition plate (4) and a bottom plate (5) arranged in sequence from top to bottom, characterized in that: A molding cavity (6) is provided between the upper mold plate (2) and the lower mold plate (3), an ejection mechanism (7) is provided between the lower mold plate (3) and the partition plate (4), and a bottom glue feeding mechanism (8) is provided between the partition plate (4) and the bottom plate (5). The molding cavity (6) is formed by a combination of an upper molding surface provided on the upper mold plate (2) and a lower molding surface (9) provided on the lower mold plate (3). A box cover inner slot molding block (10) with a rectangular ring cross section is protruded from the edge of the lower molding surface (9), and a detachable insert structure (12) with an internal cooling structure (11) is provided in the middle of the lower molding surface (9).

2. The outdoor storage box cover injection mold according to claim 1, characterized in that: The detachable insert structure (12) includes a detachable insert (13), the detachable insert (13) is fixed to the lower template (3) by a plurality of screws, and the internal cooling structure (11) is arranged on the back of the detachable insert (13).

3. The outdoor storage box cover injection mold according to claim 2, characterized in that: The inner cooling structure (11) comprises a plurality of cooling grooves (14) recessed inwardly and arranged on the back of the detachable insert (13) and a connecting flow channel (15) connecting the plurality of cooling grooves (14).

4. The outdoor storage box cover injection mold according to claim 3, characterized in that: A lifting channel (17) is formed between the lower template (3) and the partition plate (4) through the upper support block (16), and the ejection mechanism (7) includes a lifting plate (18) and a push rod mounting plate (19) arranged on the upper side of the lifting plate (18), the two sides of the lifting plate (18) protrude from the lifting channel (17), and a push rod is arranged on the push rod mounting plate (19).

5. The outdoor storage box cover injection mold according to claim 4, characterized in that: The detachable insert (13) is provided with four inner push rod insertion holes (20) distributed in a rectangular shape, and the box cover inner slot forming block (10) is provided with a plurality of outer push rod insertion holes (21).

6. The outdoor storage box cover injection mold according to claim 5, characterized in that: The box cover inner slot forming block (10) is also provided with a reinforcing rib plate forming structure.

7. The outdoor storage box cover injection mold according to claim 6, characterized in that: The reinforcing rib plate forming structure comprises a plurality of reinforcing rib plate forming grooves (22) arranged along the circumference of the inner slot forming block (10) of the box cover and recessed inwardly, and the outer push rod insertion hole (21) and the reinforcing rib plate forming grooves (22) are arranged correspondingly.

8. The outdoor storage box cover injection mold according to claim 7, characterized in that: An injection molding plate installation channel (24) is formed between the partition plate (4) and the bottom plate (5) through a lower support block (23); the bottom glue feeding mechanism (8) includes an injection molding plate (25) arranged in the injection molding plate installation channel (24); two injection molding tubes are fixedly connected to the top of the injection molding plate (25); and injection molding tube installation holes (26) are provided on the lower template (3) and the detachable insert (13).

9. The outdoor storage box cover injection mold according to claim 8, characterized in that: Both sides of the box cover inner slot forming block (10) are also provided with a cover opening slot forming structure.

10. The outdoor storage box cover injection mold according to claim 9, characterized in that: The lid opening slot forming structure comprises an inner concave forming slot (27) which is recessed inwardly and arranged on the outer side wall of the box lid inner slot forming block (10); a lid opening slot forming block (28) is protruding from the bottom of the inner concave forming slot (27).

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