WO2021119956A1

WO2021119956A1 - Material-pushing clamping jaw for die apparatus, and forming die containing material-pushing clamping jaw

Info

Publication number: WO2021119956A1
Application number: PCT/CN2019/125770
Authority: WO
Inventors: 龚激; 曹海斌
Original assignee: 苏州信运比尔精密机械有限公司
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2021-06-24
Also published as: CN111225781A; CN111225781B

Abstract

Disclosed is material-pushing clamping jaw for a die apparatus, the clamping jaw comprising a clamping assembly (32). The clamping assembly (32) comprises a driving rod (321) and a clamping jaw module (322). The clamping jaw module (322) is mounted on a male die (31) of a die apparatus, and under the acting force of a push plate of the die apparatus, the driving rod (321) pushes the clamping jaw module (322) and then pushes the clamping jaw module (322) out of the male die (31), such that a formed workpiece (6) is jacked up. The clamping jaw module (322) comprises at least two clamping blocks (3221), a chuck part (32212) being arranged on the clamping block (3221); by means of the clamping blocks (3221) being arranged in a surrounding manner, the chuck parts (32212) form a clamping mechanism for fixing an inserting rod (61) on the workpiece (6); sliding grooves (32211) are provided on the clamping blocks (3221), the sliding grooves (32211) are in sliding connection with a guide unit on the male die (31), and an extending direction of the sliding grooves (32211) is inclined relative to the inserting rod (61); and when the clamping blocks (3221) are pushed by the driving rod (321), the clamping blocks (3221) move away from the inserting rod (61) under the guiding action of the sliding grooves (32211) and the guide unit, and the chuck parts (32212) are disconnected from the inserting rod (61). The material-pushing clamping jaw is stable in terms of structure and is convenient to use.

Description

Pushing jaw for mold equipment and forming mold containing the pushing jaw

Technical field

The invention belongs to the field of base injection molds, and specifically relates to pushing jaws used for mold equipment, and also specifically designs a forming mold containing the pushing jaws.

Background technique

There is an existing sports equipment receiving device. Its base structure is shown in Figure 10. The bottom plate is equipped with a plunger, which is inserted into the ground through the plunger, so that the receiving device is fixed on the ground, thereby positioning the receiving device on the ground. It is convenient to place in one location; and in order to ensure the strength of the plunger during the production of the base, the material of the plunger is steel, and the bottom plate is made of plastic;

In the existing production process, the bottom plate is often molded by injection molding, and then the plunger is inserted into the fixed position of the bottom plate through a pressure device. This method requires a high-power pressure device. At the same time, due to the small cross-sectional area of the plunger, When subjected to greater pressure, the plunger is prone to bend, which affects the yield of the product and reduces the low production efficiency of the equipment. At the same time, the use of injection molding equipment and pressing equipment occupies a large area.

Summary of the invention

In order to overcome the shortcomings of the prior art, the present invention proposes a material pushing jaw for a mold device.

The material pushing jaw for mold equipment provided by the present invention includes a clamping assembly, and the clamping assembly includes a driving rod and a clamping jaw module;

The clamping jaw module is installed on the convex mold of the mold equipment, and the driving rod pushes the clamping jaw module under the force of the push plate of the mold equipment, and pushes the clamping jaw module out of the convex mold, thereby pushing the clamping jaw module out of the convex mold. Lifting of the shaped workpiece;

The clamping jaw module includes no less than two clamping blocks, the clamping blocks are provided with clamping heads, and the clamping blocks are arranged around, so that the clamping heads are formed for fixing the workpiece Clamping mechanism of the plunger;

The clamping block is provided with a sliding groove, the sliding groove is slidably connected with the guide unit on the punch, and the extending direction of the sliding groove is inclined with respect to the plunger; when the clamping block is pushed by the driving rod , So that the clamping block is away from the insertion rod under the guidance of the sliding groove and the guide unit, and the chuck head is disconnected from the insertion rod;

A guide sliding block is installed on a side of the clamping block close to the driving rod, a guide groove is opened on the driving rod, the guide sliding block is installed in the guide groove, and the driving rod pushes the The clamping block slides along the upper direction of the guide groove.

Preferably, the guide groove is opened along the radial direction of the driving rod, so that the clamping block moves in the direction of the guide groove, so as to realize the clamping and unclamping of the clamping jaw module.

Preferably, the installation position of the guide sliding block corresponds to the position of the sliding groove.

Preferably, a fixing protrusion is installed on the driving rod, and the driving rod is fixed on the push plate of the mold equipment through the fixing protrusion.

Preferably, the clamping blocks are opposed to each other, and when the driving rod pushes the clamping block, the distance between adjacent sides of the clamping block increases;

On the contrary, the driving rod pulls the clamping block, and the distance between the side surfaces of adjacent clamping blocks decreases. When the upper surface of the clamping block is level with the molding surface of the punch, the side surface of the adjacent clamping block To contact.

Preferably, the forming mold containing the pushing jaws as described above includes a fixed mold and a movable mold; the workpiece is formed by clamping the fixed mold and the movable mold;

The fixed mold includes a concave mold for molding, the movable mold includes a convex mold for molding, the convex mold includes a molding part, and the cavity of the fixed mold is matched with the molding part to form a workpiece , When the fixed mold and the movable mold are opened, the workpiece is wrapped on the forming part;

The punch is provided with a through hole for placing the clamping jaw module, and an inner wall of the through hole is provided with a slide rail for guiding the slide groove, and the slide rail is slidably connected with the slide groove;

The male mold is provided with a push rod, and the push rod and the driving rod are pushed by the push plate, so that the push rod and the clamping jaw module on the male mold protrude from the upper surface of the male mold, thereby pushing The workpiece is ejected from the punch.

Preferably, the cross-sectional shape of the slide rail is the same as the cross-sectional shape of the slide groove, and the inner wall of the through hole is in mating contact with the clamping block, so that the upper surface of the clamping block and the convex mold are formed The surfaces are flat, and the clamping jaw module is connected with the convex mold to form a sealed molding surface.

Preferably, a protruding positioning portion is provided at the edge of the convex mold surface, and a recessed portion is provided at a corresponding position of the concave mold. The positioning portion is connected with the recessed portion to achieve positioning.

Preferably, a cooling water channel is provided in the punch, a connecting hole communicating with the cooling water channel is opened on the side wall of the punch, and a water channel interface is installed on the connecting hole on one side wall of the punch.

Preferably, a runner hole is provided on the concave mold, and the runner hole communicates with the cavity of the concave mold; the runner hole is used to connect a pouring port so that the pouring port is connected to the cavity.

Compared with the prior art, the present invention has the following beneficial effects:

The material pushing jaw used for mold equipment provided by the present invention, by installing the clamping assembly on the punch, enables the clamping assembly to clamp the plunger during the molding process, thereby forming one time, eliminating the step of inserting the plunger, and reducing The processing steps improve efficiency and reduce space occupancy. At the same time, when the clamping assembly releases the plunger, the clamping assembly moves toward the forming workpiece, pushing the workpiece wrapped on the punch, thereby playing the role of pushing the material. The invention is convenient to use and simple in structure.

The above description is only an overview of the technical solution of the present invention. In order to understand the technical means of the present invention more clearly and implement it in accordance with the content of the description, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and the accompanying drawings.

Description of the drawings

The drawings described here are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

FIG. 1 is a schematic diagram of a three-dimensional structure in an embodiment of the present invention;

Figure 2 is a schematic diagram of an exploded structure in an embodiment of the present invention;

3 is a schematic diagram 1 of the three-dimensional structure of the clamping assembly in an embodiment of the present invention;

Fig. 4 is a partial enlarged schematic diagram of Fig. 3;

Fig. 5 is a second schematic diagram of the three-dimensional structure of the clamping assembly in an embodiment of the present invention;

Fig. 6 is a partial enlarged schematic diagram of Fig. 5;

Figure 7 is an exploded schematic diagram of a moving mold in an embodiment of the present invention;

Fig. 8 is a partial enlarged schematic diagram of Fig. 7;

Figure 9 is a cross-sectional view of a punch in an embodiment of the present invention;

FIG. 10 is a schematic diagram of a three-dimensional structure of a workpiece in an embodiment of the present invention.

As shown in the figure:

2. Fixed mold; 21. Concave mold; 211. Runner hole; 3. Movable mold; 31. Punch; 311. Forming part; 312. Positioning part; 313. Waterway interface; 314. Slide rail; 315. Cooling water channel 316. Sealing plug; 317. Push rod; 32. Clamping assembly; 321. Drive rod; 3211. Fixed protrusion; 322. Clamp module; 3221. Clamping block; 32211. Slide groove; 32212. Chuck Section; 32213, guide slider; 6, workpiece; 61, plunger.

Detailed ways

The present invention will be further described in detail below with reference to the accompanying drawings. The foregoing and other objectives, features, aspects and advantages of the present invention will become more apparent, so that those skilled in the art can implement them with reference to the text of the description. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used in all the drawings to indicate the same or similar parts. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, and lower parts are based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the size from top to bottom, "width" corresponds to the size from left to right, and "depth" corresponds to the size from front to back. These relative terms are for convenience of description and are generally not intended to require a specific orientation. Terms related to attachment, coupling, etc. (for example, "connection" and "attachment") refer to the relationship in which these structures are directly or indirectly fixed or attached to each other through intermediate structures, and the movable or rigid attachment or relationship, unless Other ways are clearly stated.

In the following, the present invention will be further described with reference to the drawings and specific implementations. It should be noted that, provided that there is no conflict, the following embodiments or technical features can be combined to form new embodiments. .

As shown in Figures 1 and 2, the forming mold with pushing jaws includes a fixed mold 2 and a movable mold 3; the fixed mold 2 and the movable mold 3 are clamped to form a workpiece 6;

The fixed mold 2 includes a concave mold 21 for molding, the movable mold 3 includes a convex mold 31 for molding, and the convex mold 31 includes a molding part 311. The cavity of the fixed mold 2 is matched with the molding part 311 to form the workpiece 6. When the fixed mold 2 and the movable mold 3 are opened, the workpiece 6 is wrapped on the molding part 312;

As shown in FIGS. 3-7, a pushing jaw is installed on the punch 31, the pushing jaw includes a clamping assembly 32, and the clamping assembly 32 includes a driving rod 321 and a clamping jaw module 322;

The clamping jaw module 322 is installed on the punch 31, and the driving rod 321 pushes the jaw module 322 under the force of the push plate of the mold equipment, and pushes the jaw module 322 out of the upper surface of the punch 31, thereby forming the workpiece 6 jack up;

The clamping jaw module 322 includes no less than two clamping blocks 3221. The clamping block 3221 is provided with clamping heads 32212. The clamping blocks 3221 are arranged around, so that the clamping heads 32212 are formed for fixing the workpiece 6 to be inserted. The clamping mechanism of the rod 61; the inserting rod 61 is clamped by the clamping head 32212, so that the inserting rod 61 is fixed on the punch 31. When the fixed mold 2 and the movable mold 3 are closed for molding, the inserting rod 61 extends into the forming process The part in the cavity is bonded with plastic to be wrapped in the base of the molded workpiece 6, thereby integrally forming the workpiece 6, eliminating the need for a pressure device to press the plunger 61 into the base of the workpiece 6, thereby improving production efficiency and reducing Improve the product failure rate, and at the same time, because the pressure equipment is omitted, the floor space is reduced.

The clamping block 3221 is provided with a sliding groove 32211. The sliding groove 32211 is slidably connected with the guide unit on the punch 31. The extending direction of the sliding groove 32211 is inclined with respect to the plunger 61; when the clamping block 3221 is pushed by the driving rod 321, The clamping block 3221 is moved away from the inserting rod 61 under the guidance of the sliding groove 32211 and the guide unit, and the clamping head 32212 is disconnected from the inserting rod 61; at this time, the clamping block 3221 moves in the punch 31 under the thrust of the driving rod 321 The upper surface of the clamping block 3221 protrudes from the upper surface of the convex mold 31, so that the workpiece 6 is lifted by the clamping block 3221, so that the workpiece 6 is separated from the convex mold 31, thereby realizing the pushing work.

As shown in Figures 7 and 8, in a preferred embodiment, the punch 31 is provided with a through hole for placing the clamping jaw module 322, and the inner wall of the through hole is provided with a slide rail 314 for guiding the movement direction of the slide groove 32211. The sliding rail 314 is slidably connected with the sliding groove 32211;

A guide slider 32213 is installed on the side of the clamping block 3221 close to the driving rod 321. The driving rod 321 is provided with a guide groove. The guide sliding block 32213 is installed in the guide groove. The driving rod 321 pushes the clamping block 3221. 3221 slides along the upper direction of the guide groove.

The guide groove is opened along the radial direction of the driving rod 321, so that the clamping block 3221 moves along the direction of the guide groove, so as to realize the clamping and loosening of the clamping jaw module 322.

The installation position of the guide sliding block 32213 corresponds to the position of the sliding groove 32211.

A fixing protrusion 3211 is installed on the driving rod 321, and the driving rod 321 is fixed on the push plate of the mold equipment through the fixing protrusion 3211.

The clamping blocks 3221 are opposed to each other. When the driving rod 321 pushes the clamping block 3221, the side distance between the adjacent clamping blocks 3221 is increased, so that the clamping head 32212 is formed into a larger ring shape, which facilitates the movement of the inserting rod 61, so as to enable external blanking The equipment is convenient to take out the work piece 6;

Conversely, the drive rod 321 pulls the clamping block 3221, and the side distance between the adjacent clamping blocks 3221 decreases. When the upper surface of the clamping block 3221 is level with the molding surface of the punch, the side surfaces of the adjacent clamping blocks 3221 are in contact with each other to ensure During the mold opening process of the fixed mold 2 and the movable mold 3, the clamping block 3221 clamps the plunger 61, so that the workpiece 6 stays in the punch 31 to realize material pulling.

In a preferred embodiment, the part of the plunger 61 that extends into the molding cavity is provided with threads, so that the plunger 61 is connected to the base of the workpiece 6 more firmly after the casting.

A push rod 317 is provided on the punch 31. The push rod 317 and the drive rod 321 are pushed by the push plate, so that the push rod 317 and the clamping jaw module 322 on the punch 31 protrude from the upper surface of the punch 31, thereby pushing the workpiece 7 It is ejected from the punch 31; the push rod 317 and the driving rod 321 push the material at the same time, which makes the pushing process more stable, reduces the force on each push rod 317 and the driving rod 321, and prevents the workpiece 6 from being deformed due to excessive force. At the same time, it promotes parts to increase their service life.

The cross-sectional shape of the slide rail 314 is the same as the cross-sectional shape of the slide groove 32211. The inner wall of the through hole is in mating contact with the clamping block 3221, so that the upper surface of the clamping block 3221 is flush with the molding surface of the punch 31, and the clamping jaw module 322 and the convex The mold 31 is connected to form a sealed molding surface to prevent plastic from flowing into the gap between the clamping jaw module 322 and the male mold 31, resulting in more product burrs and reducing product accuracy.

Protruding positioning parts 312 are provided at the edges of the surface of the punch 31, positioning parts 312 are provided near the four corners of the punch 31, and recesses are provided at the corresponding positions of the recess 21, which are connected to the recesses through the positioning parts 312 , Achieve positioning.

As shown in FIG. 9, a cooling water channel 315 is opened in the male mold 31, a connecting hole connected to the cooling water channel 315 is opened on one side wall of the male mold 31, and a water channel interface 313 is installed on the connecting hole on one side wall of the male mold 31.

In order to facilitate processing, holes are opened in the punch 31 to make the holes communicate, which is used as the cooling water channel 315, and since holes need to be opened on the side, in order to form a communicating cooling water channel 315, the side wall of the punch 31 is provided with At least three holes, and in order to realize the circulation of cooling water, two holes on one side wall of the punch 31 are used as connecting holes to connect to the water inlet and outlet ports 313, and the remaining holes on the side wall of the punch 31 Blocking by the sealing plug makes the cooling water channel 315 a closed circuit.

The female mold 21 is provided with a runner hole 211, which communicates with the cavity of the female mold 21; the runner hole 211 is used to connect a pouring port so that the pouring port is connected to the cavity.

The present invention provides a pushing jaw for a mold device. By installing a clamping assembly on a punch, the clamping assembly clamps the plunger during the molding process, thereby forming one time, eliminating the step of inserting the plunger, and reducing processing Steps to improve efficiency and space occupancy. At the same time, when the clamping assembly releases the plunger, the clamping assembly moves toward the forming workpiece, pushing the workpiece wrapped on the punch, thereby playing the role of pushing the material; The clamping component clamps the plunger to ensure that the workpiece stays on the punch during the mold opening process; by setting the thread on the plunger, the fixed seat connection between the plunger and the workpiece is more stable; the forming with the pushing jaw The mold is convenient to realize the rapid prototyping of the workpiece. The push rod is set on the punch to make the pushing process more stable, reduce the force on each push rod and driving rod, and avoid deformation of the workpiece due to excessive force, and at the same time, increase the use Life, the invention is convenient to use and simple in structure.

The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form; any person of ordinary skill in the industry can smoothly implement the present invention as shown in the drawings and above in the specification; however, wherever Those who are familiar with the profession make use of the technical content disclosed above to make minor changes, modifications, and equivalent changes without departing from the scope of the technical solution of the present invention, all of which are equivalent embodiments of the present invention; at the same time, Any changes, modifications, and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

The pushing jaw used for mold equipment includes a clamping assembly (32), characterized in that: the clamping assembly (32) includes a driving rod (321) and a clamping jaw module (322);

The clamping jaw module (322) is installed on the punch of the mold equipment, and the driving rod (321) pushes the clamping jaw module (322) under the force of the push plate of the mold equipment to clamp the clamping jaw module (322). The claw module (322) pushes out the punch, thereby pushing up the forming workpiece (6);

The clamping jaw module (322) includes no less than two clamping blocks (3221). The clamping block (3221) is provided with a clamping head (32212), which is surrounded by the clamping block (3221). Arranged so that the chuck head (32212) forms a clamping mechanism for fixing the plunger (61) on the workpiece (6);

The clamping block (3221) is provided with a sliding groove (32211), the sliding groove (32211) is slidably connected with the guide unit on the punch, and the extending direction of the sliding groove (32211) is relative to the insertion rod (61 ) Tilt; when the clamping block (3221) is pushed by the driving rod (321), the clamping block (3221) is guided by the sliding groove (32211) and the guide unit away from the inserting rod (61) ), the chuck head (32212) is disconnected from the plunger (61);

A guide sliding block (32213) is installed on the side of the clamping block (3221) close to the driving rod (321), and a guide groove is opened on the driving rod (321), and the guide sliding block (32213) Installed in the guide groove, the drive rod (321) pushes the clamping block (3221), and the clamping block (3221) slides along the upper direction of the guide groove.
The pushing jaw for mold equipment according to claim 1, characterized in that: the guide groove is opened along the radial direction of the driving rod (321), so that the clamping block (3221) is guided along the The groove moves in the direction, so as to realize the clamping and unclamping of the clamping jaw module (322).
The pushing jaw for mold equipment according to claim 2, wherein the installation position of the guide sliding block (32213) corresponds to the position of the sliding groove (32211).
The pushing jaw for mold equipment according to claim 1, characterized in that: a fixed protrusion (3211) is installed on the driving rod (321), and the fixed protrusion (3211) is used to push the The driving rod (321) is fixed on the push plate of the mold equipment.
The pushing jaw for mold equipment according to claim 1, characterized in that: the clamping blocks (3221) are opposed to each other, and when the driving rod (321) pushes the clamping block (3221) , The lateral distance between adjacent clamping blocks (3221) is increasing;

On the contrary, the driving rod (321) pulls the clamping block (3221), and the distance between the side surfaces of adjacent clamping blocks (3221) decreases gradually. When the upper surface of the clamping block (3221) and the convex mold are formed When the faces are flat, the side faces of the adjacent clamping blocks (3221) are in contact.
The molding die containing the pushing jaw of any one of claims 1-5, characterized in that it includes a fixed die (2), a movable die (3); through the fixed die (2), the movable die (3) ) Mold clamping to form the workpiece (6);

The fixed mold (2) includes a concave mold (21) for molding, the movable mold (3) includes a convex mold (31) for molding, and the convex mold (31) includes a molding part (311), The cavity of the fixed mold (2) is matched with the molding part (311) to form the workpiece (6). When the fixed mold (2) and the movable mold (3) are opened, the workpiece (6) is wrapped On the forming part (312);

The punch (31) is provided with a through hole for placing the clamping jaw module (322), and the inner wall of the through hole is provided with a slide rail (314) for guiding the slide groove (32211), so The sliding rail (314) is slidably connected with the sliding groove (32211);

The male mold (31) is provided with a push rod (317), and the push rod (317) and the drive rod (321) are pushed by the push plate so that the push rod (317) on the male mold (31) ), the clamping jaw module (322) protrudes from the upper surface of the convex mold (31), so that the workpiece (7) is ejected from the convex mold (31).
The molding die according to claim 6, characterized in that: the cross-sectional shape of the slide rail (314) and the cross-sectional shape of the slide groove (32211), the inner wall of the through hole and the clamping block (3221) Matching contact, so that the upper surface of the clamping block (3221) and the molding surface of the male mold (31) are level, and the clamping jaw module (322) is connected with the male mold (31) to form a seal The molding surface.
The molding die according to claim 6, characterized in that: the convex mold (31) is provided with a convex positioning portion (312) at the edge of the surface, and the concave mold (21) is provided with a recess at the corresponding position. The positioning part (312) is connected with the recessed part to realize positioning.
The molding die according to claim 6, characterized in that: the convex mold (31) is provided with a cooling water channel (315), and the side wall of the convex mold (31) is provided with a cooling water channel (315) connected to it. A waterway interface (313) is installed on the connecting hole on one side wall of the punch (31).
The molding die according to claim 6, characterized in that: said concave mold (21) is provided with a runner hole (211), said runner hole (211) and the cavity of said concave mold (21) Communicate with each other; the runner hole (211) is used to connect the pouring port, so that the pouring port is connected to the cavity.