CN221819400U - Plastic barrel injection mold convenient to drawing of patterns - Google Patents

Abstract

The utility model belongs to the technical field of plastic barrel injection molding, in particular to a plastic barrel injection mold convenient for demolding, which comprises an injection molding table and supporting legs, wherein an injection molding device is arranged on the right side of the upper surface of the injection molding table, the left side of the upper surface of the injection molding table is provided with a demolding device, and the demolding device comprises a mold unit, a molding unit and two groups of demolding units which are symmetrically arranged. This plastic drum injection mold convenient to drawing of patterns, when moulding plastics, start flexible cylinder drive telescopic link and move to the right, and then promote the die holder and move to the right with the mould cooperation, the rethread pipe of moulding plastics is with the inside of the leading-in injection cavity of plastics stoste, thereby realize the processing of moulding plastics of plastic drum, after the completion of moulding plastics, start flexible cylinder, drive telescopic link moves left, thereby drive the die holder moves left and breaks away from the mould, the plastic drum joint of the completion of moulding plastics is on the mould, start the drawing of patterns cylinder this moment, drive push-and-pull rod moves left, thereby promote the push pedal and move left, release the plastic drum from the mould surface, thereby accomplish drawing of patterns work.

Description

A plastic barrel injection mold that is easy to demould

Technical Field

The utility model relates to the technical field of plastic barrel injection molding, in particular to a plastic barrel injection mold which is easy to demould.

Background Art

With the rapid development of automated production, the production of many things has also accelerated. For example, the production of plastic barrels uses injection molds for injection production, which can not only speed up the production rate of plastic barrels, but also improve the production quality of plastic barrels. However, the existing plastic barrel production injection molds cannot eject the molded plastic barrels from the inside of the injection mold more quickly during plastic production, which reduces the production efficiency of workers.

For example, Chinese patent announcement No. CN215151323U discloses an injection mold for producing plastic barrels that is easy to eject. When in use, the double-axis motor rotates to move the screw block outward, the support rod drives the horizontal rack to move to both sides, the horizontal rack drives the gear to rotate and then moves the vertical rack downward, and at the same time the wedge block moves to both sides so that the support plate falls on the bottom of the lower mold base under the tension of the spring, the upper mold base and the lower mold base are combined for injection molding, when the mold is opened, the double-axis motor reverses to move the support rod inward, the upper mold plate rises, the wedge block lifts the ejector block, and the support plate ejects the molded plastic barrel from the lower mold base to complete demoulding, without the need for manual work, reducing labor intensity, strong practicality, and improving production efficiency.

However, the injection mold for producing plastic barrels that are easy to eject in the above application needs to be disassembled during demolding, which is cumbersome to operate. In addition, the spliced mold may cause the plastic barrel to not be sealed tightly enough during injection molding, resulting in wire drawing at the splicing gaps. Therefore, there are certain limitations.

For this reason, we urgently need to provide a plastic barrel injection mold that is easy to demould.

Utility Model Content

The purpose of the utility model is to provide a plastic bucket injection mold that is easy to demould, so as to solve the problem that the injection mold for producing plastic buckets that is easy to eject proposed in the above background technology needs to be disassembled when demoulding, which is cumbersome to operate, and the spliced mold may cause the plastic bucket to be not sealed tightly enough during injection molding, thereby causing the problem of wire drawing at the splicing gap.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic bucket injection mold that is easy to demold, comprising an injection molding table and supporting legs, wherein the four supporting legs are respectively fixedly connected to the four corners of the lower surface of the injection molding table, an injection molding device is arranged on the right side of the upper surface of the injection molding table, and a demolding device is arranged on the left side of the upper surface of the injection molding table.

The injection molding device comprises a heating unit, a feeding unit and an injection molding unit.

The heating unit includes an injection molding seat, an electric heating plate, and a feeding pipe. The injection molding seat is fixedly connected to the right side of the upper surface of the injection molding table, the electric heating plate is installed inside the injection molding seat, and the feeding pipe is installed on the inner wall of the electric heating plate. The electric heating plate is used to heat the plastic raw material inside the feeding pipe and melt it into liquid, which is convenient for subsequent injection molding work.

A further improvement is that the feeding unit includes a driving motor, a rotating shaft, and a feeding auger. The driving motor is installed on the right side of the injection molding seat, the right end of the rotating shaft is connected to the output end of the driving motor, and the left end thereof extends into the interior of the injection molding tube. The feeding auger is fixedly connected to the outer surface of the rotating shaft. Starting the driving motor drives the rotating shaft to rotate, and then drives the feeding auger to rotate, thereby transporting the plastic raw liquid inside the feeding tube to the left end of the feeding tube for injection molding.

A further improvement is that the injection molding unit includes a feed hopper and an injection molding tube, the feed hopper is fixedly connected to the top right side of the injection molding seat and extends into the interior of the injection molding tube, the injection molding tube is fixedly connected to the top of the left outer surface of the feeding tube, the plastic raw material is introduced into the interior of the feeding tube through the feed hopper, and the melted plastic raw liquid is transported to the interior of the demolding device through the injection molding tube for injection molding.

A further improvement is that the demoulding device comprises a mold unit, a molding unit and two groups of symmetrically arranged demoulding units.

The mold unit includes a fixed plate, a positioning column, and a mold. The fixed plate is fixedly connected to the middle of the upper surface of the injection molding table. The four positioning columns are respectively fixedly connected to the four corners of the left outer surface of the fixed plate. The mold is fixedly connected to the center of the left outer surface of the fixed plate.

A further improvement is that the molding unit includes a support plate, a telescopic cylinder, a telescopic rod, and a mold base. The support plate is fixedly connected to the left side of the upper surface of the injection molding table, the telescopic cylinder is installed on the right outer surface of the support plate, the telescopic rod is slidably connected to the inside of the right end of the telescopic cylinder, and the mold base is fixedly connected to the right end of the telescopic rod. During injection molding, the telescopic cylinder is started to drive the telescopic rod to move right, thereby pushing the mold base to move right to cooperate with the mold, and then the plastic raw liquid is introduced into the inside of the injection molding cavity through the injection molding tube, thereby realizing the injection molding of the plastic barrel.

A further improvement is that the four corners of the right outer surface of the mold base are provided with positioning holes with the same diameter as the positioning posts and corresponding to each other. The positioning holes and the positioning posts can effectively avoid the position offset between the mold base and the mold, thereby affecting the injection molding process of the plastic barrel. The right outer surface of the mold base is provided with an injection cavity.

A further improvement is that the demoulding unit includes a demoulding cylinder, a push-pull rod, and a push plate. The demoulding cylinder is installed at the front end of the left outer surface of the injection molding seat, the push-pull rod is slidably connected to the inside of the left end of the demoulding cylinder, and the push plate is fixedly connected to the left end of the push-pull rod and installed inside the fixed plate. After the injection molding is completed, the telescopic cylinder is started to drive the telescopic rod to move left, thereby driving the mold base to move left and separate from the mold. The injection-molded plastic barrel is clamped on the mold. At this time, the demoulding cylinder is started to drive the push-pull rod to move left, thereby pushing the push plate to move left and pushing the plastic barrel out of the mold surface, thereby completing the demoulding work.

Compared with the prior art, the beneficial effects of the utility model are:

1. This plastic barrel injection mold, which is easy to demould, heats the plastic raw material inside the feeding tube through an electric heating plate to melt it into liquid, and cooperates with the feeding unit to transport the plastic stock liquid inside the feeding tube to the left end of the feeding tube for injection molding. During this period, the plastic stock liquid is always kept in a heated state to prevent it from condensing and affecting the injection molding process.

2. During injection molding, the telescopic cylinder is started to drive the telescopic rod to move right, thereby pushing the mold base to move right to cooperate with the mold, and then the plastic stock liquid is introduced into the injection cavity through the injection tube, thereby realizing the injection molding of the plastic barrel.

3. After the injection molding is completed, the telescopic cylinder is started to drive the telescopic rod to move left, thereby driving the mold base to move left and leave the mold. The injection-molded plastic barrel is stuck on the mold. At this time, the demoulding cylinder is started to drive the push-pull rod to move left, thereby pushing the push plate to move left and pushing the plastic barrel out of the mold surface, thereby completing the demoulding work.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front view of the structure of the present utility model;

FIG2 is a schematic cross-sectional view of the injection molding device of the present invention;

FIG3 is a schematic cross-sectional view of the demoulding device of the utility model during injection molding;

FIG4 is a schematic diagram of the structure of the demoulding device of the utility model when demoulding from the right side;

FIG5 is a schematic diagram of the left side structure of the demoulding device of the utility model during demoulding.

In the figure: 1. injection molding table; 2. support leg; 301. injection molding seat; 302. electric heating plate; 303. feeding pipe; 304. driving motor; 305. rotating shaft; 306. feeding auger; 307. feeding hopper; 308. injection molding pipe; 401. fixing plate; 402. positioning column; 403. mold; 404. support plate; 405. telescopic cylinder; 406. telescopic rod; 407. mold base; 408. demoulding cylinder; 409. push-pull rod; 410. push plate.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1 to 5. The utility model provides a technical solution:

Embodiment 1:

A plastic bucket injection mold for easy demoulding includes an injection molding table 1 and support legs 2. Four support legs 2 are respectively fixedly connected to the four corners of the lower surface of the injection molding table 1. An injection molding device is arranged on the right side of the upper surface of the injection molding table 1, and a demoulding device is arranged on the left side of the upper surface of the injection molding table 1.

The injection molding device comprises a heating unit, a feeding unit and an injection molding unit.

The heating unit includes an injection molding seat 301, an electric heating plate 302, and a feeding tube 303. The injection molding seat 301 is fixedly connected to the right side of the upper surface of the injection molding table 1, the electric heating plate 302 is installed inside the injection molding seat 301, and the feeding tube 303 is installed on the inner wall of the electric heating plate 302. The electric heating plate 302 is used to heat the plastic raw material inside the feeding tube 303 and melt it into liquid, which is convenient for subsequent injection molding.

The feeding unit includes a driving motor 304, a rotating shaft 305, and a feeding auger 306. The driving motor 304 is installed on the right side of the injection molding seat 301. The right end of the rotating shaft 305 is connected to the output end of the driving motor 304, and its left end extends into the interior of the feeding tube 303. The feeding auger 306 is fixedly connected to the outer surface of the rotating shaft 305. Starting the driving motor 304 drives the rotating shaft 305 to rotate, and then drives the feeding auger 306 to rotate, so as to transport the plastic raw liquid inside the feeding tube 303 to the left end of the feeding tube 303 for injection molding.

The injection molding unit includes a feed hopper 307 and an injection molding tube 308. The feed hopper 307 is fixedly connected to the top right side of the injection molding seat 301 and extends into the interior of the feeding tube 303. The injection molding tube 308 is fixedly connected to the top of the left outer surface of the feeding tube 303. The plastic raw material is introduced into the interior of the feeding tube 303 through the feed hopper 307, and the melted plastic raw liquid is transported to the interior of the demolding device through the injection molding tube 308 for injection molding.

The demoulding device comprises a mold unit and a molding unit.

The mold unit includes a fixed plate 401, a positioning column 402, and a mold 403. The fixed plate 401 is fixedly connected to the middle of the upper surface of the injection molding table 1. The four positioning columns 402 are respectively fixedly connected to the four corners of the left outer surface of the fixed plate 401. The mold 403 is fixedly connected to the center of the left outer surface of the fixed plate 401.

The molding unit includes a support plate 404, a telescopic cylinder 405, a telescopic rod 406, and a mold base 407. The support plate 404 is fixedly connected to the left side of the upper surface of the injection molding table 1, the telescopic cylinder 405 is installed on the right outer surface of the support plate 404, the telescopic rod 406 is slidably connected to the inside of the right end of the telescopic cylinder 405, and the mold base 407 is fixedly connected to the right end of the telescopic rod 406. During injection molding, the telescopic cylinder 405 is started to drive the telescopic rod 406 to move right, thereby pushing the mold base 407 to move right to cooperate with the mold 403, and then the plastic raw liquid is introduced into the inside of the injection molding cavity through the injection tube 308, thereby realizing the injection molding of the plastic barrel.

The four corners of the right outer surface of the mold base 407 are provided with positioning holes with the same diameter as the positioning posts 402 and corresponding to each other. The positioning holes and the positioning posts 402 can effectively avoid positional offset between the mold base 407 and the mold 403, thereby affecting the injection molding process of the plastic barrel. The right outer surface of the mold base 407 is provided with an injection cavity.

When in use, first start the telescopic cylinder 405 to drive the telescopic rod 406 to move right, thereby pushing the mold base 407 to move right and fit the mold 403, then introduce the plastic raw material into the feeding tube 303 through the feed hopper 307, then start the electric heating plate 302 to heat the plastic raw material inside the feeding tube 303 and melt it into liquid, then start the driving motor 304 to drive the rotating shaft 305 to rotate, and then drive the feeding auger 306 to rotate, so as to transport the plastic raw liquid inside the feeding tube 303 to the injection tube 308 at the left end of the feeding tube 303 and transmit it to the injection cavity of the mold base 407, cooperate with the mold 403 to complete the injection molding work, after the injection molding is completed, start the telescopic cylinder 405 to drive the telescopic rod 406 to move left, thereby driving the mold base 407 to move left and separate from the mold 403, and then remove the formed plastic barrel from the mold 403.

Embodiment 2:

On the basis of Example 1, the demolding device also includes two groups of symmetrically arranged demolding units, the demolding units include a demolding cylinder 408, a push-pull rod 409, and a push plate 410. The demolding cylinder 408 is installed at the front end of the left outer surface of the injection seat 301, the push-pull rod 409 is slidably connected to the left end of the demolding cylinder 408, and the push plate 410 is fixedly connected to the left end of the push-pull rod 409 and installed inside the fixed plate 401.

After the injection molding is completed, the telescopic cylinder 405 is started to drive the telescopic rod 406 to move left, thereby driving the mold base 407 to move left and separate from the mold 403. The plastic barrel after injection molding is clamped on the mold 403. At this time, the demoulding cylinder 408 is started to drive the push-pull rod 409 to move left, thereby pushing the push plate 410 to move left and pushing the plastic barrel out from the surface of the mold 403, thereby completing the demoulding work.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "including a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims (7)

1. The utility model provides a plastic drum injection mold convenient to drawing of patterns, includes platform (1) and supporting leg (2) of moulding plastics, four supporting leg (2) are fixed connection respectively in the lower surface four corners of platform (1) of moulding plastics, its characterized in that: an injection molding device is arranged on the right side of the upper surface of the injection molding table (1), and a demolding device is arranged on the left side of the upper surface of the injection molding table (1);

The injection molding device comprises a heating unit, a feeding unit and an injection molding unit;

The heating unit comprises an injection molding seat (301), an electric heating plate (302) and a feeding pipe (303), wherein the injection molding seat (301) is fixedly connected to the right side of the upper surface of the injection molding table (1), the electric heating plate (302) is arranged in the injection molding seat (301), and the feeding pipe (303) is arranged on the inner wall of the electric heating plate (302).

2. The plastic bucket injection mold convenient for demolding as set forth in claim 1, wherein: the feeding unit comprises a driving motor (304), a rotating shaft (305) and a feeding auger (306), wherein the driving motor (304) is arranged on the right side of the injection molding seat (301), the right end of the rotating shaft (305) is connected with the output end of the driving motor (304), the left end of the rotating shaft extends into the feeding pipe (303), and the feeding auger (306) is fixedly connected to the outer surface of the rotating shaft (305).

3. A plastic bucket injection mold facilitating demolding as defined in claim 2, wherein: the injection molding unit comprises a feed hopper (307) and an injection molding pipe (308), wherein the feed hopper (307) is fixedly connected to the right side of the top of the injection molding seat (301) and extends into the feeding pipe (303), and the injection molding pipe (308) is fixedly connected to the top of the left outer surface of the feeding pipe (303).

4. A plastic bucket injection mold for facilitating demolding as defined in claim 3, wherein: the demolding device comprises a mold unit, a molding unit and two groups of demolding units which are symmetrically arranged;

The die unit comprises a fixing plate (401), positioning columns (402) and a die (403), wherein the fixing plate (401) is fixedly connected to the middle of the upper surface of the injection molding table (1), the four positioning columns (402) are respectively and fixedly connected to four corners of the left outer surface of the fixing plate (401), and the die (403) is fixedly connected to the center of the left outer surface of the fixing plate (401).

5. The plastic bucket injection mold convenient for demolding as set forth in claim 4, wherein: the molding unit comprises a supporting plate (404), a telescopic cylinder (405), a telescopic rod (406) and a mold base (407), wherein the supporting plate (404) is fixedly connected to the left side of the upper surface of the injection molding table (1), the telescopic cylinder (405) is arranged on the outer surface of the right side of the supporting plate (404), the telescopic rod (406) is slidably connected to the inside of the right end of the telescopic cylinder (405), and the mold base (407) is fixedly connected to the right end of the telescopic rod (406).

6. The plastic bucket injection mold convenient for demolding as set forth in claim 5, wherein: positioning holes which are the same as the positioning columns (402) in diameter and correspond to each other are formed in four corners of the outer surface of the right side of the die holder (407), and an injection molding cavity is formed in the outer surface of the right side of the die holder (407).

7. The plastic bucket injection mold convenient for demolding as set forth in claim 6, wherein: the demolding unit comprises a demolding cylinder (408), a push-pull rod (409) and a pushing plate (410), wherein the demolding cylinder (408) is arranged at the front end of the left side surface of the injection molding seat (301), the push-pull rod (409) is slidably connected inside the left end of the demolding cylinder (408), and the pushing plate (410) is fixedly connected at the left end of the push-pull rod (409) and is arranged inside the fixing plate (401).