CN218928517U

CN218928517U - Long core-pulling demolding structure, long core-pulling mold and injection molding equipment

Info

Publication number: CN218928517U
Application number: CN202223604807.5U
Authority: CN
Inventors: 彭红军
Original assignee: Shuangjiu Medical Technology Tianjin Co ltd
Current assignee: Shuangjiu Medical Technology Tianjin Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-28
Anticipated expiration: 2032-12-30

Abstract

The application relates to the technical field of injection molding, especially, relate to a long drawing of core drawing of patterns structure, long loose core mould and injection molding equipment, include: the first connecting block, the second connecting block and the frame body. The bottom of first connecting block is connected and is loosed core, and the piston rod of loose core hydro-cylinder is connected at the top of first connecting block, sets up the chute on the first connecting block, and the chute leans upward from the orientation of preceding die body to back die body. The second connecting block is fixedly connected to the front die body; and an inclined block is arranged on the side wall of the second connecting block, and is inserted into the inclined groove and can slide along the inclined groove. The first connecting block is arranged on the frame body in a sliding manner, and can slide up and down along the frame body. When the front die body leaves the rear die body during demoulding, the core is pulled away from the workpiece by a distance, so that the core pulling wrapping force of the workpiece on the core pulling is reduced, the burden of the core pulling oil cylinder is further reduced, the service life of the core pulling oil cylinder is prolonged, the stability of the core pulling process is improved, and the risk of workpiece breakage is reduced.

Description

Long core-pulling demolding structure, long core-pulling mold and injection molding equipment

Technical Field

The application relates to the technical field of injection molding, and more particularly relates to a long core-pulling demolding structure, a long core-pulling mold and injection molding equipment.

Background

Injection molding is a common way of workpiece manufacture, particularly in medical instruments and medical consumables, and core pulling injection molding is a common way for some hollow workpieces. And placing the core pulling core between the front die body and the rear die body, and filling the workpiece molten liquid so that the workpiece molten liquid coats the core pulling core. And after the workpiece is solidified and formed, opening the front die body, and drawing out the core to finish machining. The core pulling stroke is more than 60mm and is classified as a long core pulling structure, and the injection molding wrapping force is relatively large when the long core pulling structure is used for pulling the core, so that the resistance of pulling out the core is relatively large, and the core pulling oil cylinder is required to provide relatively large pulling force. Therefore, the burden of the core-pulling oil cylinder is larger, and the service life of the core-pulling oil cylinder is lower. And the core pulling is directly pulled out by using larger pulling force, so that the stability is poor, and the workpiece is easy to damage.

Disclosure of Invention

In order to overcome the problem that exists in the related art to at least a certain extent, the purpose of this application is to provide a long drawing of core drawing of patterns structure, long mould and injection molding equipment of loosing core, great burden reduces the problem that its can solve great burden and reduce the life and great pulling force of loosing core hydro-cylinder and cause the damage of work piece easily. The preferred technical solutions of the technical solutions provided in the present application can produce a number of technical effects described in detail below.

The application provides a long drawing of patterns structure of loosing core, include:

the bottom of the first connecting block is connected with a core pulling cylinder, the top of the first connecting block is connected with a piston rod of the core pulling cylinder, a chute is arranged on the first connecting block, and the chute is inclined upwards from the front die body to the rear die body;

the second connecting block is fixedly connected to the front die body; the side wall of the second connecting block is provided with an inclined block, and the inclined block is inserted into the inclined groove and can slide along the inclined groove;

the frame body, first connecting block slides and sets up on the frame body, first connecting block can follow the frame body reciprocates.

Optionally, the method further comprises:

the connector is connected to the piston rod of the core-pulling oil cylinder, a first bulge is arranged on the side wall of the connector, a groove is formed in the top surface of the first connecting block, a second bulge is arranged on the side wall of the groove, and the connector can be inserted into the groove and the second bulge is located below the first bulge.

Optionally, a fixing hole is formed in the top end of the connector, and a piston rod of the core-pulling oil cylinder can be fixedly clamped in the fixing hole.

Optionally, a clamping connector is arranged on the inclined block, a clamping groove is arranged on the second connecting block, and the clamping connector can be clamped in the clamping groove.

Optionally, the method further comprises:

the third connecting block is fixedly arranged on the core pulling structure, and the first connecting block is fixedly arranged on the top surface of the third connecting block.

Optionally, a sliding rail is arranged on the frame body along the up-down direction, a sliding groove is arranged on the third connecting block, and the sliding rail is arranged in the sliding groove in a sliding manner.

The application provides a long loose core mould, including above arbitrary long loose core drawing of patterns structure.

The application provides injection molding equipment, including above arbitrary long drawing of core drawing of patterns structure or long mould of loosing core.

The technical scheme that this application provided can include following beneficial effect:

when the front die body leaves the rear die body during demoulding, the core is pulled away from the workpiece by a distance, so that the core pulling wrapping force of the workpiece on the core pulling is reduced, the burden of the core pulling oil cylinder is further reduced, the service life of the core pulling oil cylinder is prolonged, the stability of the core pulling process is improved, and the risk of workpiece breakage is reduced.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a long core back demolding structure shown in accordance with some example embodiments;

FIG. 2 is a schematic diagram of a pre-demolded state of a long core-pulling demold structure shown according to some example embodiments;

FIG. 3 is a schematic diagram of a state prior to complete demolding of a long core-pulling demolding structure, shown according to some example embodiments;

FIG. 4 is a schematic illustration of the connection of a second connection block of a long core back demolding structure to a front mold, according to some exemplary embodiments;

FIG. 5 is a schematic structural view of a second connection block of the long core back demolding structure shown according to some example embodiments;

FIG. 6 is a schematic structural view of a first connection block of a long core back demolding structure shown according to some example embodiments;

fig. 7 is a schematic view of a back side structure of a long core back ejector structure according to some example embodiments.

In the figure: 1. a first connection block; 2. a second connection block; 3. a sloping block; 4. a connector; 5. a first protrusion; 6. a groove; 7. a second protrusion; 8. a frame body; 9. a clamping joint; 10. a clamping groove; 11. a slide rail; 12. a chute; 13. a chute; 14. core pulling oil cylinder; 15. a front mold body; 16. a rear mold body; 17. a third connecting block; 18. a bar-shaped groove; 19. core pulling is performed.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus or methods consistent with aspects of the present application.

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.

Hereinafter, embodiments will be described with reference to the drawings. Furthermore, the embodiments shown below do not limit the summary of the utility model described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the utility model described in the claims.

Referring to fig. 1-7, the present embodiment provides a long core-pulling demolding structure, including: a first connecting block 1, a second connecting block 2 and a frame body 8. The core pulling 19 of the long core pulling mold is fixedly connected to the bottom of the first connecting block 1, so that the core pulling 19 and the first connecting block 1 move up and down synchronously. The core-pulling oil cylinder 14 is arranged on the frame body 8, and a piston rod of the core-pulling oil cylinder 14 is connected with the top of the first connecting block 1, so that the core-pulling oil cylinder 14 can drive the first connecting block 1 to move up and down.

A chute 13 is provided on a side wall of the first connecting block 1, wherein the chute 13 is inclined upwardly from the front mold body 15 toward the rear mold body 16.

The inclined block 3 is fixedly arranged on the second connecting block 2, and the inclined block 3 is inserted into the chute 13, so that the outer wall of the inclined block 3 is attached to the inner wall of the chute 13 and can slide along the chute 13. In this way, the second connection block 2 is moved away from the first connection block 1 in the horizontal direction, and the top surface of the inclined block 3 is abutted against the top surface of the inclined groove 13, so that the first connection block 1 is moved upward.

The second connection block 2 is fixedly connected to the front mold body 15 of the long core-pulling mold. Thus, when demolding, the mold opening device drags the front mold body 15 away from the rear mold body 16, the second connecting block 2 moves away from the front mold body 15 in the horizontal direction together with the rear mold body 16, so that the top surface of the inclined block 3 moves along the top surface of the inclined groove 13 until leaving the inclined groove 13, during which the first connecting block 1 moves upward for a certain distance, and simultaneously the first connecting block 1 pulls the loose core 19 upward for a certain distance, so that the loose core 19 is pulled away from the workpiece for a certain distance. At this time, the wrapping force of the workpiece on the loose core 19 is greatly reduced, and the loose core 19 is pulled away from the workpiece by pulling the first connecting block 1 upwards with a smaller force. The stability of the core pulling process is improved, and the risk of workpiece breakage is reduced. And the burden of the core-pulling oil cylinder 14 is greatly reduced, and the service life of the core-pulling oil cylinder 14 is prolonged.

And because the pulling force that needs core-pulling cylinder 14 to provide is less, after the cylinder diameter of core-pulling cylinder 14 reduces, occupation space is less, and installation and use are all more convenient.

As an alternative embodiment, further comprising: and the connector 4 is fixedly connected to a piston rod of the core-pulling oil cylinder 14. A first protrusion 5 is provided on the side wall of the connector 4, a groove 6 is provided on the top surface of the first connector block 1, and a second protrusion 7 is provided on the side wall of the groove 6. After the connector 4 is inserted into the recess 6, the second protrusion 7 is located below the first protrusion 5. When the core pulling cylinder 14 pulls the connector 4 to move upwards, the connector 4 starts to pull the first connecting block 1 to move upwards until the second protrusion 7 abuts against the first protrusion 5. So set up, during the drawing of patterns, the demolding equipment drags preceding die body 15 away from back die body 16, and second connecting block 2 moves away from preceding die body 15 in the horizontal direction together with back die body 16 to the top surface of sloping block 3 moves along the top surface of chute 13 until leaving chute 13, and during this period, first connecting block 1 upwards moves a distance, and first connecting block 1 pulls core pulling 19 upwards to move a distance simultaneously, thereby core pulling 19 takes away a distance from the work piece. The second protrusion 7 is now moved a distance away from the first protrusion 5. At this time, the core pulling cylinder 14 is used for pulling the connector 4 to move upwards, and after the second protrusion 7 abuts against the first protrusion 5, the connector 4 starts to pull the first connecting block 1 to move upwards, so that the core pulling 19 is pulled away from the workpiece.

The recess 6 should have a certain height to ensure that the second protrusion 7 has sufficient space to move away from the first protrusion 5.

In some embodiments, a fixing hole is provided at the top end of the connector 4, and the piston rod of the core-pulling cylinder 14 is fixedly clamped in the fixing hole. Thereby fixedly connecting the connector 4 to the piston rod of the core-pulling cylinder 14.

As an alternative embodiment, the oblique block 3 is provided with a clamping joint 9, the second connecting block 2 is provided with a clamping groove 10, and the clamping joint 9 can be clamped in the clamping groove 10. Wherein the clamping groove 10 is a T-shaped groove, and the clamping connector 9 is also T-shaped. The bottom of the clamping connector 9 is connected to the top surface of the inclined block 3 into a whole, and the T-shaped clamping connector 9 is fixedly inserted into the T-shaped groove, so that the inclined block 3 is fixedly connected to the second connecting block 2.

The top surface of the chute 13 is provided with a bar-shaped groove 18, the bar-shaped groove 18 penetrates through the top surface of the chute 13 and penetrates through the opening of the chute 13, and when the chute 3 is inserted into the chute 13 and slides along the chute 13, the clamping head 9 can enter the bar-shaped groove 18 and slide along the bar-shaped groove 18.

As an alternative embodiment, further comprising: and a third connection block 17, wherein the core pulling 19 is fixedly arranged on the third connection block 17, and the first connection block 1 is fixedly connected on the top surface of the third connection block 17, so that the core pulling 19 is connected on the bottom surface of the first connection block 1 through the third connection block 17.

The rack body 8 is provided with a slide rail 11, and the slide rail 11 is arranged along the up-down direction. A slide groove 12 is provided on the third connection block 17, and the slide rail 11 is slidably provided in the slide groove 12. Thereby with first connecting block 1 through third connecting block 17 sliding connection on support body 8 for first connecting block 1 removes more steadily.

The application also provides a long core-pulling die, which comprises the long core-pulling demolding structure in the embodiment.

The application also provides injection molding equipment, which comprises the long core-pulling demolding structure or the long core-pulling mold in the embodiment.

It should be noted that, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are used herein for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description herein, it should also be noted that the terms "mounted," "connected," "coupled," and "connected," are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example, unless otherwise specifically indicated and defined; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to. The multiple schemes provided by the application comprise own basic schemes, are independent of each other and are not mutually restricted, but can be combined with each other under the condition of no conflict, so that multiple effects are achieved together.

Although embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims

1. The utility model provides a long drawing of core drawing of patterns structure which characterized in that includes:

the device comprises a first connecting block (1), wherein the bottom of the first connecting block (1) is connected with a core pulling cylinder, the top of the first connecting block (1) is connected with a piston rod of the core pulling cylinder, a chute (13) is arranged on the first connecting block (1), and the chute (13) is inclined upwards from a front die body to a rear die body;

the second connecting block (2) is fixedly connected to the front die body; an inclined block (3) is arranged on the side wall of the second connecting block (2), and the inclined block (3) is inserted into the chute (13) and can slide along the chute (13);

the frame body (8), first connecting block (1) slides and sets up on frame body (8), first connecting block (1) can follow frame body (8) reciprocates.

2. The long core-pulling and demolding structure according to claim 1, characterized by further comprising:

the connector (4) is connected to a piston rod of the core-pulling oil cylinder, a first bulge (5) is arranged on the side wall of the connector (4), a groove (6) is formed in the top surface of the first connecting block (1), a second bulge (7) is arranged on the side wall of the groove (6), and the connector (4) can be inserted into the groove (6) and the second bulge (7) is located below the first bulge (5).

3. The long core-pulling demolding structure according to claim 2, wherein a fixing hole is formed in the top end of the connector (4), and a piston rod of the core-pulling oil cylinder can be fixedly clamped in the fixing hole.

4. The long core-pulling demolding structure according to claim 1, characterized in that a clamping connector (9) is arranged on the inclined block (3), a clamping groove (10) is arranged on the second connecting block (2), and the clamping connector (9) can be clamped in the clamping groove (10).

5. The long core-pulling and demolding structure according to claim 1, characterized by further comprising:

the third connecting block (17) is fixedly arranged on the third connecting block (17), and the first connecting block (1) is fixedly arranged on the top surface of the third connecting block (17).

6. The long core-pulling demolding structure according to claim 5, characterized in that a sliding rail (11) is arranged on the frame body (8) along the up-down direction, a sliding groove (12) is arranged on the third connecting block (17), and the sliding rail (11) is slidably arranged in the sliding groove (12).

7. A long core-pulling die, characterized by comprising the long core-pulling demolding structure as claimed in any one of claims 1 to 6.

8. An injection molding apparatus comprising the long core-pulling ejection structure according to any one of claims 1 to 6 or the long core-pulling mold according to claim 7.