CN216466002U

CN216466002U - Mould for plastic box

Info

Publication number: CN216466002U
Application number: CN202122529271.4U
Authority: CN
Inventors: 郑艺林
Original assignee: Zhangzhou Kangli Plastic Co ltd
Current assignee: Zhangzhou Kangli Plastic Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-05-10
Anticipated expiration: 2031-10-20

Abstract

The utility model discloses a mould for a plastic box, which comprises an oil cylinder, a left fixed seat, a right fixed seat, a fixed mould seat, a movable mould seat, a push plate, a left mould group, a right mould group, a demoulding sheet, a contraction spring and an air inlet hole, wherein the right end of the oil cylinder passes through the left fixed seat and is arranged at the middle position of the left side of the push plate, the movable mould seat is arranged at the right side of the push plate, the left mould group is arranged at the center position of the right side of the movable mould seat, the air inlet holes are formed in the front side and the rear side of the movable mould seat, the air inlet holes are connected with the inside of the left mould group, the demoulding sheet is arranged in the middle of a left mould group model, the contraction spring is arranged at the bottom of the demoulding sheet, the fixed mould seat is arranged at the right side of the movable mould seat, the fixed mould seat is arranged at the right side of the right mould group, the mould seat is rapidly injected with air into the movable mould seat and the left mould group through the air inlet hole, so as to break through the tension of the contraction spring to the demoulding sheet, and change the problem that the traditional mould is damaged or deformed when the plastic box is demoulded, the demolding speed and the production efficiency of the plastic box are improved.

Description

Mould for plastic box

Technical Field

The utility model relates to the technical field of plastic box molds, in particular to a mold for a plastic box.

Background

The plastic box is a transparent folding box, a cylinder, a heaven and earth cover box, a hand bag, an elevator hanging sheet and other relevant plastic products which are made of PVC/PET/PP/PS and the like, and can achieve the printing effects of UV Korotkoff printing, silk screen printing, gold/silver stamping, frosting and the like. The plastic box has the characteristics of increased user experience, permanent and durable packaging, moisture resistance, water resistance, high toughness, strong transportation safety performance, product grade improvement and the like. Moulds (mu m) and tools for obtaining the desired products in industrial production by injection moulding, blow moulding, extrusion, die casting or forge forming, smelting, punching and the like.

And forming the blank into a workpiece with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), which can be separated or combined. The existing plastic box mold has the problems that the plastic box is damaged or deformed during demolding, the demolding speed is low, and the production efficiency is low in the production process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a mold for a plastic box, which aims to solve the problem that the traditional mold is damaged or deformed when the plastic box is demolded in the background technology and improve the demolding speed and the production efficiency of the plastic box.

In order to achieve the purpose, the utility model provides the following technical scheme: a mold for a plastic box comprises an oil cylinder, a left fixing seat, a right fixing seat, a movable mold seat, a push plate, a left mold group, a right mold group, a demolding sheet, a contraction spring and an air inlet hole, wherein the push plate is installed on the right side of the left fixing seat, the right end of the oil cylinder penetrates through the left fixing seat and is installed at the middle position on the left side of the push plate, the movable mold seat is installed on the right side of the push plate, a first guide column is installed at four corners on the right side of the left fixing seat, a first right guide column penetrates through the push plate and the movable mold seat, a second guide hole is formed in the right end of the movable mold seat, the left mold group is installed at the center position on the right side of the movable mold seat, the air inlet hole is formed in the front side and the rear side of the movable mold seat, the air inlet hole is connected with the inside of the left mold group, the center of the left mold group is hollow, the demolding sheet is installed in the middle of the left mold group, the contraction spring is installed at the bottom of the left mold group, the die comprises a fixed die base, a movable die base, a right die set, a right fixing base, guide columns I, an injection hole I and an injection hole I, wherein the fixed die base is arranged on the right side of the movable die base, the right die set is arranged in the middle of the fixed die base, the right fixing base is arranged on the right side of the fixed die base, the guide columns II are arranged at the four corners of the fixed die base, the four corners of the fixed die base are located on the two outer sides of the guide columns, and the injection hole I is arranged in the center position of the right side of the fixed die base.

Furthermore, the left side module and the right side module are all movable modules, the center of the left side module is fixedly arranged on the movable die holder through a first screw, the middle positions of four sides of the left side module are fixedly arranged on the movable die holder through a second screw, the center of the right side module is fixedly arranged on the fixed die holder through a first screw, the middle positions of four sides of the right side module are fixedly arranged on the fixed die holder through a second screw, and the left side module and the right side module are conveniently installed and replaced for injection molding production of modules in different shapes.

Furthermore, the middle position of the top of the movable die holder is provided with an internal thread hole, when the die is heavy, tools such as a lifting hook can be installed through the internal thread hole, and the die is conveniently installed on the injection molding machine.

Furthermore, the upper ends of the front side and the rear side of the movable mold seat are provided with water inlet holes, the lower ends of the movable mold seat are provided with water outlet holes, and the water inlet holes and the water outlet holes on the same side are in a group, so that the cooling time of the mold can be shortened, and the plastic box can be demolded more easily.

Furthermore, a detection pin is installed at the front end of the guide column, a first spring is installed at the left end of the detection pin inside the front end of the guide column, a support column is installed at the bottom of the detection pin inside the first spring, the collision force of the movable die holder and the fixed die holder when the movable die holder and the fixed die holder are converged is reduced through the installation of the detection pin, and the service life of the die is prolonged.

Furthermore, a limiting block is installed on the right side of the left fixing seat, and the left end of the guide column penetrates through the limiting block to be installed on the left fixing seat, so that the guiding effect of the guide column I is enhanced.

Furthermore, stopper right-hand member four corners is located a guide post inboard and installs guide post three, and inside three right-hand members of guide post passed push pedal installation movable mould seat left side, and the three peripheries of guide post are located limiting plate and push pedal intermediate position and install spring one, and when the push pedal shrink, through the cushioning effect of spring one, reduce the shock of push pedal to left fixing base and injection molding machine itself.

Furthermore, the left side module and the right side module are four model modules, so that four plastic boxes can be produced at one time, and the production efficiency of the die is improved.

The beneficial technical effects related to the implementation of the utility model are as follows: the utility model comprises an oil cylinder, a left fixed seat, a right fixed seat, a fixed die seat, a movable die seat, a push plate, a left die set, a right die set, a demoulding sheet, a contraction spring and an air inlet hole, wherein the air inlet hole is formed in the front side and the rear side of the movable die seat, so that the air inlet hole is connected with the inside of the left die set, the center of the left die set is hollow, the demoulding sheet is arranged in the middle of the left die set, and the contraction spring is arranged at the bottom of the demoulding sheet.

Drawings

FIG. 1 is a schematic view of a first perspective structure of the present invention;

FIG. 2 is a schematic view of a second perspective structure of the present invention;

FIG. 3 is a main schematic view of the present invention;

FIG. 4 is a partial cross-sectional view of the utility model;

FIG. 5 is a partial cross-sectional view of a guide post according to the present invention;

fig. 6 is a partial cross-sectional view of the left module of the present invention.

In the figure: the device comprises a left fixed seat 1, an oil cylinder 2, a limiting block 3, a guide post III 4, a push plate 5, a movable die seat 6, an internal threaded hole 7, a water inlet hole 8, an air inlet hole 9, a guide post I10, a spring I11, a support post 12, a detection pin 13, a left side module 14, a screw I15, a screw II 16, a guide hole II 17, a water outlet hole 18, a contraction spring 19, an injection molding cavity 20, a demoulding sheet 21, a fixed die seat 22, a right fixed seat 23, an injection molding hole 24, a guide hole I25, a guide post II 26 and a right side module 27.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides the following technical solutions: a mold for a plastic box comprises an oil cylinder 2, a left fixed seat 1, a right fixed seat 23, a fixed mold seat 22, a movable mold seat 6, a push plate 5, a left side mold group 14, a right side mold group 27, a demolding sheet 21, a contraction spring 19 and an air inlet hole 9, wherein the push plate 5 is installed on the right side of the left fixed seat 1, the right end of the oil cylinder 2 penetrates through the left fixed seat 1 and is installed at the middle position of the left side of the push plate 5, the movable mold seat 6 is installed on the right side of the push plate 5, a first guide post 10 is installed at four corners of the right side of the left fixed seat 1, the right end of the first guide post 10 penetrates through the push plate 5 and the movable mold seat 6, a second guide hole 17 is formed in the right end of the movable mold seat 6, the left side mold group 14 is installed at the center position of the right side of the movable mold seat 6, the air inlet hole 9 is formed in the front side and the back side of the movable mold seat 6, the air inlet hole 9 is connected with the inside of the left side mold group 14, the center of the left side mold group 14 is hollow, the demolding sheet 21 is installed in the middle of the left side mold group 14, the contraction spring 19 is installed at the bottom of the demolding sheet 21, the right side of the movable die holder 6 is provided with a fixed die holder 22, the middle of the fixed die holder 22 is provided with a right die set 27, the right side of the fixed die holder 22 is provided with a right fixed seat 23, four corners of the fixed die holder 22 are provided with a second guide column 26, four corners of the fixed die holder 22 are positioned outside the second guide column 26 and are provided with a first guide hole 25, and the right center of the fixed die holder 22 is provided with an injection molding hole 24.

The left side module 14 and the right side module 27 are movable modules, the center of the left side module 14 is fixedly installed on the movable die holder 6 through a first screw 15, the middle positions of four sides of the left side module 14 are fixed on the movable die holder 6 through a second screw 16, the center of the right side module 27 is fixedly installed on the fixed die holder 22 through a first screw 15, the middle positions of four sides of the right side module 27 are fixed on the fixed die holder 22 through a second screw 16, and the modules with different shapes can be conveniently installed and replaced for injection molding production.

The middle position of the top of the movable die holder 6 is provided with an internal thread hole 7, and when the die is heavy, tools such as a lifting hook can be installed through the internal thread hole 7, so that the die can be conveniently installed on an injection molding machine.

The upper ends of the front side and the rear side of the movable die holder 6 are provided with water inlet holes 8, the lower ends of the front side and the rear side of the movable die holder are provided with water outlet holes 18, and the water inlet holes 8 and the water outlet holes 18 on the same side form a group, so that the cooling time of the die can be shortened, and the plastic box can be demolded more easily.

The detection round pin 13 is installed to 10 front ends of guide post, and the spring 11 is installed to 13 left ends of detection round pin to the inside being located of 10 front ends of guide post, and a pillar 12 is installed to 13 bottoms that are located in the detection round pin of spring 11 inside, detects round pin 13 through the installation and reduces the impact of movable mould seat 6 and fixed mould seat 22 when joining, promotes the life of mould.

The right side of the left fixed seat 1 is provided with a limiting block 3, the left end of the guide post I10 passes through the limiting block 3 to be arranged on the left fixed seat 1, the guiding function of the guide post I10 is enhanced,

stopper 3 right-hand member four corners is located guide column one 10 inboards and installs guide column three 4, and inside guide column three 4 right-hand members passed push pedal 5 installation movable mould seat 6 left sides, and the periphery of guide column three 4 is located stopper 3 and push pedal 5 middle spring 11 of installing, and when push pedal 5 shrink, through the cushioning effect of spring 11, reduce the shock of push pedal 5 to left fixing base 1 and injection molding machine itself.

The left side die set 14 and the right side die set 27 are four-die sets, so that four plastic boxes can be produced at one time, and the production efficiency of the die is improved.

The working principle is as follows: before working, the center of the left side die set 14 is fixedly arranged on the movable die base 6 through a first screw 15, the middle of four sides of the left side die set 14 is fixedly arranged on the movable die base 6 through a second screw 16, the center of the right side die set 27 is fixedly arranged on the fixed die base 22 through a first screw 15, the middle of four sides of the right side die set 27 is fixedly arranged on the fixed die base 22 through a second screw 16, when the die is working, the oil cylinder 2 pushes the push plate 5 to move rightwards, the push plate 5 drives the movable die base 6 to move rightwards, the guide post II 26 is inserted into the guide hole II 17, the movable die base 6 and the fixed die base 22 are tightly attached together, a blank is injected into an injection cavity 20 in the die through an injection hole 24, after the blank is filled with cold water, the cold water is continuously injected through the water inlet hole 8 and the water outlet hole 18, the blank is cooled and molded, after the blank is molded, the blank, the movable die base 6 is indirectly separated from the fixed die base 22 through the oil cylinder 2, air is quickly filled into the left side die set 14 through the air inlet hole 9, the high pressure is formed to break through the pulling force of the contraction spring 19 to the demoulding sheet 21, so that the demoulding sheet 21 protrudes and then blows off the plastic box through air flow, the problem that the traditional mould is damaged or deformed when the plastic box is demoulded is solved, and the demoulding speed and the production efficiency of the plastic box are improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A mould for plastic box is characterized in that: comprises an oil cylinder (2), a left fixing seat (1), a right fixing seat (23), a fixing seat (22), a movable mold seat (6), a push plate (5), a left side module (14), a right side module (27), a demoulding sheet (21), a contraction spring (19) and an air inlet (9), wherein the push plate (5) is installed on the right side of the left fixing seat (1), the right end of the oil cylinder (2) passes through the left fixing seat (1) and is installed at the middle position on the left side of the push plate (5), the movable mold seat (6) is installed on the right side of the push plate (5), a guide column I (10) is installed at the four corners on the right side of the left fixing seat (1), the right end of the guide column I (10) passes through the push plate (5) and the movable mold seat (6), a guide hole II (17) is arranged at the right end of the movable mold seat (6), the left side module (14) is installed at the center position on the right side of the movable mold seat (6), air inlets (9) are formed in the front side and the rear side of the movable die holder (6), the air inlets (9) are connected with the inside of the left side die set (14), the center of the left side die set (14) is hollow, the demoulding sheet (21) is arranged in the middle of the left side die set (14) die, the bottom of the demoulding sheet (21) is positioned in the left side die set (14) and is provided with the contraction spring (19), the right side of the movable die holder (6) is provided with the fixed die holder (22), the middle of the fixed die holder (22) is provided with the right side die set (27), the right fixed seat (23) is arranged on the right side of the fixed die seat (22), a second guide column (26) is arranged at the four corners of the fixed die seat (22), four corners of the fixed die holder (22) are positioned outside the second guide columns (26) and are provided with first guide holes (25), and the center of the right side of the fixed die holder (22) is provided with an injection molding hole (24).

2. The mold for plastic cases as set forth in claim 1, wherein: the left side module (14) and the right side module (27) are all movable modules, the center of the left side module (14) is fixedly installed on the movable die holder (6) through a first screw (15), the middle positions of four sides of the left side module (14) are fixed on the movable die holder (6) through a second screw (16), the center of the right side module (27) is fixedly installed on the fixed die holder (22) through the first screw (15), and the middle positions of four sides of the right side module (27) are fixed on the fixed die holder (22) through the second screw (16).

3. The mold for plastic cases as set forth in claim 1, wherein: an internal thread hole (7) is formed in the middle of the top of the movable die holder (6).

4. The mold for plastic cases as set forth in claim 1, wherein: the upper ends of the front side and the rear side of the movable die holder (6) are provided with water inlet holes (8), the lower ends of the front side and the rear side of the movable die holder are provided with water outlet holes (18), and the water inlet holes (8) and the water outlet holes (18) on the same side are a group.

5. The mold for plastic cases as set forth in claim 1, wherein: the detection pin (13) is installed to guide post (10) front end, and inside being located of guide post (10) front end detects round pin (13) left end and installs spring (11), and pillar (12) are installed to spring (11) inside being located and detecting round pin (13) bottom.

6. The mold for plastic cases as set forth in claim 1, wherein: stopper (3) are installed on left side fixing base (1) right side, and guide post (10) left end passes stopper (3) and installs on left fixing base (1).

7. The mold for plastic cases as set forth in claim 6, wherein: stopper (3) right-hand member four corners is located guide column one (10) inboard and installs guide column three (4), and inside guide column three (4) right-hand member passed push pedal (5) installation movable die base (6) left side, spring one (11) were installed in the middle of guide column three (4) periphery is located stopper (3) and push pedal (5).

8. The mold for plastic cases as set forth in claim 1, wherein: the left side module (14) and the right side module (27) are both four model modules.