CN220784735U - A special mold for producing a commander's box - Google Patents

Abstract

The utility model provides a special mold for the production of a commander box, belonging to the field of mold technology. It solves the problem of low production efficiency of commander boxes in the prior art. The special mold for the production of the commander box includes a fixed mold and a movable mold. An ejector assembly including multiple ejector pins is arranged below the movable mold. A pair of cores are adjacently arranged on the movable mold. Multiple molding blocks are arranged on the outer side of each core. The molding blocks can be slidably arranged on the movable mold. Each core and the molding blocks arranged on the outer side thereof and the fixed mold form a cavity. The movable mold is also provided with a flow channel connecting the two cavities. The ejector pins can be movably arranged on the two cores up and down and can extend into the corresponding cavities. The fixed mold is respectively fixed with inclined guide columns inclined from top to bottom and from inside to outside at the position corresponding to each molding block, and the lower end of the inclined guide column is movably arranged on the molding block. The utility model has the advantage of improving the production efficiency of the commander box.

Description

A special mold for producing a commander's box

Technical Field

The utility model belongs to the technical field of molds and relates to a special mold for producing a command box.

Background technique

During construction, pipes with wires are usually embedded in the wall when the wall is poured. This wiring method is convenient for the layout of wires and can effectively prevent wire breaks, but it requires more command boxes (i.e. pipe joints) to connect the wires in the pipes.

At present, injection molds are mainly used to produce command boxes. For example, a Chinese patent document discloses an injection molded junction box mold that is easy to remove (authorization announcement number: CN 208497550U), which includes a lower support base plate and an upper fixed pressure plate. The middle position of the top of the lower support base plate is fixedly connected to the lower mold cover of the junction box. The left and right sides of the top of the lower mold cover of the junction box are provided with fixed slots. The middle position of the bottom end of the upper fixed pressure plate is fixedly connected to the upper mold cover of the junction box. The left side of the bottom of the upper fixed pressure plate is fixedly connected to a connecting rod. The end of the bottom of the connecting rod away from the upper fixed pressure plate is fixedly connected to an external threaded connecting rod. The top of the supporting shaft is fixedly connected to an internal threaded sleeve rod. The lower mold cover of the junction box and the upper mold cover of the junction box are both provided with molding cavities. This injection molded junction box mold that is easy to remove has the following disadvantages when used: the operator still needs to manually remove the product from the mold during demoulding, resulting in low production efficiency.

Summary of the invention

The purpose of the utility model is to solve the above problems in the existing technology and propose a special mold for the production of a commander box. The technical problem to be solved by the utility model is how to improve the production efficiency of the commander box.

The purpose of the utility model can be achieved through the following technical solutions:

A special mold for producing a command box, comprising a fixed mold and a movable mold, wherein an ejector assembly including a plurality of ejector pins is arranged below the movable mold, and the characteristic is that a pair of cores are adjacently arranged on the movable mold, and a plurality of molding blocks are arranged on the outer side of each core, and the molding blocks are slidably arranged on the movable mold, and a cavity is formed between each core, the molding blocks arranged on the outer side thereof and the fixed mold, and a flow channel connecting the two cavities is also arranged on the movable mold, and the ejector pins are respectively movably arranged on the two cores up and down and can extend into the corresponding cavities, and the fixed mold is respectively fixed with inclined guide columns inclined from top to bottom and from inside to outside at the position corresponding to each molding block, and the lower ends of the inclined guide columns are movably arranged on the molding blocks.

The special mold for the production of this commander box has two interconnected cavities, and multiple commander boxes can be produced simultaneously through one injection molding. At the same time, under the action of the inclined guide column, the molding blocks can be closed or separated from each other when the mold is closed or opened. In addition, the ejector rod can eject the product, thereby realizing the molding and automatic demoulding of the commander box, reducing manual operation, and greatly improving the production efficiency of the commander box.

Specifically, a gate sleeve connected to the runner is provided on the fixed mold of the special mold for the production of the commander box. When the mold is closed, a cavity is formed between each core, multiple molding blocks located on the outside thereof, and the fixed mold and the movable mold. Then the molten plastic slurry is injected into the two cavities through the gate sleeve and the runner. The molten plastic slurry is cooled and solidified in the cavity. When the mold is opened, the injection molding machine pulls the movable mold to separate from the fixed mold. During the separation process, the inclined guide column gradually withdraws the corresponding molding block and drives the molding block away from the corresponding core at the same time, so that the molding block located on the outside of the product (commander box) is separated from the product. Then the ejector pin of the ejector assembly ejects the two products. Finally, the two products fall under their own gravity to complete the demolding. When the mold is closed again, the inclined guide column is reinserted into the corresponding molding block and drives the molding block close to the corresponding core at the same time. A cavity is formed after the fixed mold and the movable mold are closed, and the operation is continuously cyclic.

In the above-mentioned special mold for producing a commander box, a step is provided on the end of the molding block facing the core, the position of the step is higher than the top surface of the core, and the fixed mold is fixed with an end core corresponding to the position of each core, and the end core abuts against the step to close the cavity corresponding to its position. The end core of the above-mentioned structure can close the upper end of the cavity, and the gap between the end core and the core forms a part of the cavity, so that the commander box is formed in an inverted shape as a whole, which can ensure the molding quality of the commander box and facilitate the subsequent automatic demolding of the commander box.

In the above-mentioned special mold for producing a commander box, the movable mold is provided with a pair of slide rails corresponding to the position of each forming block, and the two sides of the forming block are slidably embedded in the two slide rails. By slidably embedding the two sides of the forming block in the two slide rails, the movement of the forming block is more accurate and stable, which is beneficial to the molding quality of the commander box and the subsequent automatic demoulding.

In the above-mentioned special production mold for a commander box, the movable mold is provided with a blocking block at the position corresponding to each forming block. The blocking block has two oppositely arranged inclined surfaces and an arc surface connecting the two inclined surfaces. The bottom of the forming block is provided with a receiving groove for receiving the blocking block, and the blocking block can be separated from the receiving groove under the action of an external force. When in use, the plane where the multiple forming blocks are located is perpendicular to the ground. When the mold is separated, under the drive of the inclined guide column, the forming block can pass over the blocking block to separate the forming block from the commander box, which is convenient for the subsequent automatic demolding of the commander box. After the mold is separated, the blocking block can hinder the backflow of the forming block to prevent the forming block from backflowing under the action of gravity or other factors. The structure is simple and the use effect is good.

In the above-mentioned special mold for producing a commander box, a mounting block is arranged on the movable mold, a positioning rod connected to the forming block is movably penetrated on the mounting block, a tension spring is sleeved on the positioning rod, and the two ends of the tension spring are respectively connected to the positioning rod and the mounting block. When in use, the plane where the multiple forming blocks are located is perpendicular to the ground. After the mold is separated, the tension spring can further pull the forming block to prevent the forming block located above the core from sliding back under the action of gravity. The structure is simple and the use effect is good.

Compared with the prior art, the advantage of the special production mold for the commander box is that the special production mold for the commander box can not only produce multiple commander boxes at the same time, but also realize automatic demolding of the commander box during mold separation, reducing manpower operation, thereby greatly improving the production efficiency of the commander box.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the three-dimensional structure of a special mold for producing the command box.

Fig. 2 is a schematic diagram of the structure of the command box when the special production mold is removed and the fixed mold is removed.

Figure 3 is a schematic diagram of the three-dimensional structure of the command box after the special production mold is split and the fixed mold, end core and inclined guide column are removed.

Figure 4 is a schematic diagram of the structure when viewed from above after the special mold for the production of the command box is split and the fixed mold, end core and inclined guide pillars are removed.

FIG. 5 is a schematic diagram of the structure of a special mold for producing the command box from a top view.

FIG6 is a cross-sectional view taken along line A-A in FIG5.

FIG7 is a cross-sectional view taken along line B-B in FIG5.

Figure 8 is a schematic diagram of the partial three-dimensional structure of the special mold for the production of the command box after removing the fixed mold, end core, inclined guide column and forming block.

FIG. 9 is a schematic diagram of the three-dimensional structure of the forming block of the special mold for producing the command box when viewed from above.

In the figure, 1, fixed mold; 2, movable mold; 3, ejector pin assembly; 3a, ejector pin; 4, core; 5, molding block; 5a, step; 5b, accommodating groove; 6, cavity; 7, runner; 8, inclined guide column; 9, slide rail; 10, end core; 11, blocking block; 11a, inclined surface; 11b, arc surface; 12, mounting block; 13, positioning rod; 14, tension spring; 15, command box.

Detailed ways

The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

A special mold for producing a command box, referring to Fig. 1-9, comprises a fixed mold 1 and a movable mold 2, an ejector assembly 3 comprising a plurality of ejector pins 3a is arranged below the movable mold 2, a pair of cores 4 are arranged adjacent to each other on the movable mold 2, a plurality of molding blocks 5 are arranged on the outer side of each core 4, and the molding blocks 5 are slidably arranged on the movable mold 2. Specifically, a pair of slide rails 9 are arranged at the position corresponding to each molding block 5 of the movable mold 2, and the two sides of the molding block 5 are slidably embedded on the two slide rails 9. A cavity 6 is formed between each core 4, the molding block 5 arranged on the outer side thereof, and the fixed mold 1, and a flow channel 7 connecting the two cavities 6 is also arranged on the movable mold 2, the ejector pins 3a are respectively arranged on the two cores 4 movably up and down and can extend into the corresponding cavity 6, and the fixed mold 1 is respectively fixed with an inclined guide column 8 inclined from top to bottom and from inside to outside at the position corresponding to each molding block 5, and the lower end of the inclined guide column 8 is movably arranged on the molding block 5.

2, 3, 4, 6 and 9, specifically, a step 5a is provided on the end of the molding block 5 facing the core 4, and the position of the step 5a is higher than the top surface of the core 4. The fixed mold 1 is fixed with an end core 10 corresponding to the position of each core 4, and the end core 10 abuts against the step 5a to close the cavity 6 corresponding to its position.

Referring to Figures 2, 3, 4, 8 and 9, further, the movable mold 2 is respectively provided with a blocking block 11 at the position corresponding to each forming block 5, the blocking block 11 has two oppositely arranged inclined surfaces 11a and a curved surface 11b connecting the two inclined surfaces 11a, and the bottom of the forming block 5 is provided with a receiving groove 5b for receiving the blocking block 11, and the blocking block 11 can be separated from the receiving groove 5b under the action of external force.

1 , 2 , 3 , 4 and 5 , further, the movable mold 2 is provided with a mounting block 12 , a positioning rod 13 movably penetrated through the mounting block 12 and fixedly connected to the forming block 5 , a tension spring 14 is sleeved on the positioning rod 13 , and both ends of the tension spring 14 are respectively fixedly connected to the positioning rod 13 and the mounting block 12 .

The fixed mold 1 of the special mold for the production of the command box is provided with a sprue sleeve connected to the runner 7. When the mold is closed, each core 4, a plurality of molding blocks 5 located outside thereof, and a cavity 6 are formed between the fixed mold 1 and the movable mold 2. Then, the molten plastic slurry is injected into the two cavities 4 through the sprue sleeve and the runner 7. The molten plastic slurry is cooled and solidified in the cavity 4. When the mold is opened, the injection molding machine pulls the movable mold 2 to separate from the fixed mold 1. During the separation process, the inclined guide column 8 gradually withdraws the corresponding molding block 5 and simultaneously drives the molding block 5 away from the corresponding core 4, so that the mold located at The molding block 5 on the outside of the product (command box) is separated from the product, and then the two products are ejected by the ejector rod 3a of the ejector assembly 3 (the ejector assembly 3 includes an ejector plate and an ejector rod 3a fixed on the ejector plate, and the movement of the ejector plate drives the ejector rod 3a to move along the mold opening direction). Finally, the two products fall under their own gravity to complete the demolding. When the mold is closed again, the inclined guide column 8 is reinserted into the corresponding molding block 5, and at the same time, the molding block 5 is driven to approach the corresponding core 4, and a cavity 6 is formed after the fixed mold 1 and the movable mold 2 are closed, and the operation is continuously circulated.

The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims (5)

1. The utility model provides a special mould of production of commander case, includes cover half (1) and movable mould (2), and the below of movable mould (2) is provided with thimble assembly (3) including many ejector pins (3 a), a serial communication port, be provided with a pair of core (4) on movable mould (2) adjacently, the outside of every core (4) all surrounds and is provided with a plurality of shaping piece (5), shaping piece (5) slidable ground sets up on movable mould (2), forms die cavity (6) between shaping piece (5) and cover half (1) three of every core (4) and setting in its outside, still be provided with runner (7) of two die cavities (6) of intercommunication on movable mould (2), ejector pin (3 a) respectively can wear to establish on two cores (4) and can stretch into in corresponding die cavity (6) with the top-down movement, the position of cover half (1) corresponding every shaping piece (5) has set firmly respectively by inside-outside oblique guide pillar (8), and oblique guide pillar (8) down is established on shaping piece (5).

2. The special production mould of a command box according to claim 1, wherein the end part of the forming block (5) facing the core (4) is provided with a step (5 a), the position of the step (5 a) is higher than the top surface of the core (4), the position of the fixed mould (1) corresponding to each core (4) is fixedly provided with an end core (10), and the end core (10) is abutted on the step (5 a) to seal a cavity (6) corresponding to the position of the end core.

3. The special production mould of the command box according to claim 1, wherein a pair of sliding rails (9) are respectively arranged at positions of the movable mould (2) corresponding to each forming block (5), and two sides of each forming block (5) are respectively and slidably embedded on the two sliding rails (9).

4. A special production mould for a command box according to claim 1, 2 or 3, characterized in that the movable mould (2) is provided with a blocking block (11) corresponding to each forming block (5), the blocking block (11) is provided with two inclined planes (11 a) which are oppositely arranged and an arc surface (11 b) which is connected with the two inclined planes (11 a), the bottom of the forming block (5) is provided with a containing groove (5 b) for containing the blocking block (11), and the blocking block (11) can be separated from the containing groove (5 b) under the action of external force.

5. The special production mould of a command box according to claim 4, wherein the movable mould (2) is provided with a mounting block (12), a positioning rod (13) fixedly connected with the forming block (5) is movably arranged on the mounting block (12), a tension spring (14) is sleeved on the positioning rod (13), and two ends of the tension spring (14) are respectively fixedly connected to the positioning rod (13) and the mounting block (12).