Hydraulic double-shrinkage composite mechanism

Abstract

The utility model discloses a hydraulic double-shrinkage composite mechanism, and belongs to the technical field of die structure design. A hydraulic type double-shrinkage composite mechanism comprises an oil cylinder body, and further comprises a front mold shoveling machine, a rear mold shoveling machine, a hydraulic cylinder, a front mold, a rear mold shoveling machine and a rear mold shoveling machine, and the front mold shoveling machine is slidably arranged on a front mold and installed at the output end of the oil cylinder body; the mounting seat is arranged on the front mold in a sliding manner, and a guide block is fixedly arranged on the mounting seat; the two groups of shrinkage inserts are symmetrically arranged, the two groups of shrinkage inserts are respectively connected with the guide block in a sliding manner, and when the guide block slides, the two groups of shrinkage inserts are close to each other or far away from each other; in the sliding process of the guide block, the two groups of shrinkage inserts are driven to be close to or far away from each other to realize a mold closing or demolding effect, so that on one hand, the thickness and the width of the mold can be reduced, the manufacturing and maintenance cost of the mold is reduced, and on the other hand, the phenomenon of opposite ejection caused by adopting double-oil-cylinder type double sliding blocks can be avoided; the service life of the oil cylinder is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of mold structure design, in particular to a hydraulic double-shrinking compound mechanism. Background Art

[0002] A mold is a tool composed of various dies and tools. It is a variety of molds and tools used in industrial production to obtain the required products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, a mold is a tool used to make molded objects. This tool is composed of various parts, and different molds are composed of different parts. It mainly realizes the processing of the shape of the object by changing the physical state of the molded material. It is a tool that makes the blank become a part of a specific shape and size under the action of external force. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, as well as compression or injection molding of engineering plastics, rubber, ceramics and other products.

[0003] Some products are designed with inverted straight pipe ports and reinforcing ribs around the products, which means that only two cylinder-type double sliders can be designed. As a result, the thickness and width of the mold are large, and the mold manufacturing and maintenance costs are high. Since double cylinder core-pulling sliders are used on the mold, the thrust of the two cylinders interact with each other each time the mold is closed, which will reduce the life of the cylinder, increase the cost of use, and affect the use effect. Utility Model Content

[0004] The utility model aims to solve the problem in the prior art that when a product has an inverted straight pipe mouth, a double slide block of a double oil cylinder type is used, which will lead to a larger mold size and reduce the service life of the oil cylinder, and proposes a hydraulic double-shrinking composite mechanism.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A hydraulic double-shrinking compound mechanism includes a cylinder body fixedly arranged on a front mold, and also includes: a front mold shovel machine, which is slidably arranged on the front mold, and the front mold shovel machine is installed at the output end of the cylinder body; a mounting seat slidably arranged on the front mold, wherein a core puller is fixedly arranged at one end of the mounting seat, a driving member for driving the mounting seat to slide is arranged on the front mold shovel machine, and a guide block is fixedly arranged on the mounting seat; two groups of symmetrically arranged shrink inserts, the two groups of shrink inserts are respectively slidably connected to the guide blocks, and when the guide blocks slide, the two groups of shrink inserts approach or move away from each other.

[0007] In order to facilitate driving the two groups of shrink inserts towards or away from each other, preferably, an installation groove is opened in the guide block, the two groups of shrink inserts are respectively slidably connected in the installation groove, and the two groups of shrink inserts are respectively fixed with second inclined guide blocks, and the inner walls on both sides of the installation groove are respectively opened with second inclined guide grooves, and the two groups of the second inclined guide blocks are respectively slidably connected in the corresponding second inclined guide grooves.

[0008] In order to avoid the phenomenon that the two groups of shrinkage inserts slide together with the guide block during demoulding, further, limit blocks are fixedly provided on the two groups of shrinkage inserts, and an insert strip is fixedly provided on the front mold, and the limit blocks are slidably connected to the insert strip.

[0009] In order to facilitate the sliding of the driving mounting seat and the guide block, preferably, the driving member includes a first inclined guide block fixedly arranged on the other end of the mounting seat, and a first inclined guide groove is opened at one end of the front mold shovel machine, and the first inclined guide block is slidably connected in the first inclined guide groove.

[0010] Preferably, a guide groove in a T-shaped structure is provided at the other end of the front mold shovel machine, and a driving block is fixedly provided at the output end of the cylinder body, and the driving block is slidably connected in the guide groove.

[0011] Preferably, a rod is fixedly provided on the front mold shovel machine, and a plurality of groups of travel switches are fixedly provided on the front mold, and one end of the rod away from the front mold shovel machine abuts against the corresponding travel switch.

[0012] Compared with the prior art, the utility model provides a hydraulic double-retracting compound mechanism, which has the following beneficial effects:

[0013] 1. The hydraulic double shrinking compound mechanism uses a single set of oil cylinders to drive the mounting seat and the guide block to slide. During the sliding process of the guide block, the two sets of shrinking inserts can be driven to move closer or farther from each other to achieve the mold closing or demolding effect. On the one hand, the thickness and width of the mold can be reduced, and the mold manufacturing and maintenance costs can be reduced. On the other hand, it can avoid the use of double slide blocks of double oil cylinders, which leads to the top-to-top phenomenon and affects the service life of the oil cylinder;

[0014] 2. The hydraulic double shrinkage composite mechanism has an insert pressure strip fixed on the front mold for limiting the two sets of shrinkage inserts. During the demoulding process, it can prevent the two sets of shrinkage inserts from sliding together with the guide blocks, causing damage to the product and affecting the product quality.

[0015] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The utility model adopts a single set of oil cylinders to drive the mounting seat and the guide block to slide. During the sliding process of the guide block, the two sets of shrink inserts can be driven to move closer to or away from each other to achieve the mold closing or demolding effect. On the one hand, the thickness and width of the mold can be reduced, and the mold manufacturing and maintenance costs can be reduced. On the other hand, the use of double slide blocks with double oil cylinders can be avoided, which leads to the top-to-top phenomenon and affects the service life of the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a hydraulic double-retracting compound mechanism proposed by the utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the structure of a hydraulic double-retracting compound mechanism proposed by the utility model. Figure 2 ;

[0018] Figure 3 A schematic diagram of the structure of a hydraulic double-retracting compound mechanism proposed in the utility model Figure 3 ;

[0019] Figure 4 It is a structural schematic diagram of a hydraulic double-retractable composite mechanism retractable insert proposed by the utility model;

[0020] Figure 5 The utility model is a structural schematic diagram of a hydraulic double-retractable composite mechanism rod.

[0021] In the figure: 1. Cylinder body; 101. Front mold shovel; 102. First oblique guide groove; 103. Rod; 104. Insert pressure strip; 105. Guide groove; 2. Mounting seat; 201. Core pulling; 202. First oblique guide block; 3. Guide block; 301. Mounting groove; 302. Second oblique guide groove; 4. Shrink insert; 401. Second oblique guide block; 402. Limit block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0024] Example:

[0025] Reference Figure 1-Figure 5 A hydraulic double-shrink compound mechanism includes a cylinder body 1 fixedly arranged on a front mold, and also includes: a front mold shovel machine 101 is slidably arranged on the front mold, and in order to ensure that the front mold shovel machine 101 slides reliably, a shovel machine pressure strip is fixedly arranged on the front mold, and the shovel machine pressure strip is symmetrically arranged in two groups, which are respectively located on both sides of the front mold shovel machine 101, and the front mold shovel machine 101 is installed at the output end of the cylinder body 1. When the cylinder body 1 is started, the front mold shovel machine 101 can slide along the shovel machine pressure strip; a mounting seat 2 is slidably arranged on the front mold, and a core pulling 201 is fixedly arranged at one end of the mounting seat 2 The shape of the core pulling 201 corresponds to the inner wall structure of the straight pipe mouth of the product. A driving member for driving the mounting seat 2 to slide is arranged on the front mold shovel machine 101. Here, we design the driving member as follows: a first inclined guide block 202 is fixedly arranged on the other end of the mounting seat 2, and a first inclined guide groove 102 is opened at one end of the front mold shovel machine 101. The first inclined guide block 202 is slidably connected in the first inclined guide groove 102. When in use, when the front mold shovel machine 101 slides, the cooperation between the first inclined guide groove 102 and the first inclined guide block 202 can drive it close to or away from the product to achieve mold closing or demolding. A guide block 3 is fixedly arranged on the mounting seat 2, and the guide block 3 and the core pulling 201 are located at the same end; two groups of symmetrically distributed shrinkage inserts 4 are arranged on the front mold, and the two groups of shrinkage inserts 4 are slidably connected to the guide blocks 3 respectively. When in use, when the mounting seat 2 and the guide block 3 slide, the two groups of shrinkage inserts 4 approach or move away from each other to achieve mold closing or demolding. There are inverted straight pipe openings on the product, and two groups of shrinkage inserts 4 can be used for production. On the one hand, the thickness and width of the mold can be reduced, and the mold manufacturing and maintenance costs can be reduced. On the other hand, the use of double slide blocks of double oil cylinders can be avoided, which leads to the top phenomenon and affects the service life of the oil cylinder.

[0026] Reference Figure 2 and Figure 4A mounting groove 301 is opened in the guide block 3, and the two groups of shrinkage inserts 4 are slidably connected in the mounting groove 301, and second inclined guide blocks 401 are fixedly arranged on the two groups of shrinkage inserts 4, respectively. Second inclined guide grooves 302 are opened on the inner walls on both sides of the mounting groove 301, and the two groups of second inclined guide blocks 401 are slidably connected in the corresponding second inclined guide grooves 302. When in use, by opening the second inclined guide groove 302 in the guide block 3 and fixing the second inclined guide blocks 401 on the two groups of shrinkage inserts 4, when the guide block 3 slides, the two groups of shrinkage inserts 4 can be driven to approach or move away from each other, thereby realizing mold closing or demoulding, improving the use effect, and having a simple and compact structure, reliable operation, and being conducive to popularization and use.

[0027] Reference Figure 2 and Figure 4 , limit blocks 402 are fixedly provided on the two groups of shrinkage inserts 4, and an insert strip 104 is fixedly provided on the front mold. The two groups of limit blocks 402 are slidably connected with the insert strip 104 respectively. When in use, by fixing the insert strip 104 on the front mold, during the demoulding process, the two groups of shrinkage inserts 4 can be prevented from sliding along with the guide block 3, causing damage to the product and affecting the product quality.

[0028] Reference Figure 5 A guide groove 105 with a T-shaped structure is provided at the other end of the front mold shovel machine 101, and a driving block is fixedly arranged at the output end of the cylinder body 1, and the driving block is slidably connected in the guide groove 105, and the two ends of the driving block are respectively abutted against the inner wall of the guide groove 105. When in use, by providing the guide groove 105 on the front mold shovel machine 101 and fixing the driving block at the output end of the cylinder body 1, on the one hand, it is convenient for the driving block to slide back and forth with the front mold shovel machine 101 to achieve demolding or mold closing. On the other hand, the driving block is slidably connected with the guide groove 105, which can avoid the deformation of the output rod of the front mold shovel machine 101 or the cylinder body 1, resulting in abnormal noise or accelerated wear of the cylinder body 1 and the front mold shovel machine 101.

[0029] Reference Figure 5 A rod 103 is fixedly provided on the front mold shovel machine 101, and a plurality of groups of travel switches are fixedly provided on the front mold. Here, we preferably provide two groups of travel switches, and the end of the rod 103 away from the front mold shovel machine 101 is against the corresponding travel switch. During use, when the cylinder body 1 drives the front mold shovel machine 101 to close the mold, when the mold closing is completed, one end of the rod 103 just contacts one group of travel switches, and the cylinder body 1 stops and maintains pressure. When the cylinder body 1 drives the front mold shovel machine 101 to demold, after the demolding is completed, one end of the rod 103 just contacts another group of travel switches, and the cylinder body 1 stops and maintains pressure again, which can improve the driving accuracy and improve the use effect.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic double-shrinking compound mechanism, comprising a cylinder body (1) fixedly arranged on a front mold, characterized in that: Also includes: A front mold shovel machine (101) is slidably arranged on the front mold, and the front mold shovel machine (101) is installed at the output end of the oil cylinder body (1); A mounting seat (2) is slidably arranged on the front mold, Wherein, a core puller (201) is fixedly provided at one end of the mounting seat (2), a driving member for driving the mounting seat (2) to slide is provided on the front mold shovel machine (101), and a guide block (3) is fixedly provided on the mounting seat (2); Two groups of symmetrically arranged shrinkage inserts (4) are respectively connected to the guide block (3) in a sliding manner. When the guide block (3) slides, the two groups of shrinkage inserts (4) move closer to or farther away from each other.

2. A hydraulic double-shrinking compound mechanism according to claim 1, characterized in that: The guide block (3) is provided with a mounting groove (301), and the two groups of shrink inserts (4) are respectively slidably connected in the mounting groove (301), and the two groups of shrink inserts (4) are respectively fixedly provided with second inclined guide blocks (401), and the inner walls on both sides of the mounting groove (301) are respectively provided with second inclined guide grooves (302), and the two groups of the second inclined guide blocks (401) are respectively slidably connected in the corresponding second inclined guide grooves (302).

3. A hydraulic double-shrinking compound mechanism according to claim 2, characterized in that: The two groups of shrink inserts (4) are respectively fixedly provided with limit blocks (402), and the front mold is fixedly provided with an insert pressure strip (104), and the limit blocks (402) are slidably connected with the insert pressure strip (104).

4. A hydraulic double-shrinking compound mechanism according to claim 1, characterized in that: The driving member comprises a first inclined guide block (202) fixedly arranged on the other end of the mounting seat (2); a first inclined guide groove (102) is provided at one end of the front mold shovel machine (101); and the first inclined guide block (202) is slidably connected in the first inclined guide groove (102).

5. The hydraulic double-shrink compound mechanism according to claim 1, characterized in that: A guide groove (105) in a T-shaped structure is provided at the other end of the front mold shovel machine (101), and a driving block is fixedly provided at the output end of the oil cylinder body (1), and the driving block is slidably connected in the guide groove (105).

6. A hydraulic double-shrinking compound mechanism according to claim 1, characterized in that: A rod (103) is fixedly arranged on the front mold shovel machine (101), and a plurality of groups of travel switches are fixedly arranged on the front mold. One end of the rod (103) away from the front mold shovel machine (101) abuts against a corresponding travel switch.

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