Mold device convenient to demold

Abstract

The utility model relates to the technical field of molds, and discloses a mold device convenient to demold, which comprises a device base, two mutually symmetrical support columns are mounted at the top of the device base, a same top plate is mounted at the tops of the two support columns, a hydraulic cylinder is mounted on the top plate, an upper mold is mounted at the action output end of the hydraulic cylinder, and a lower mold is mounted at the action output end of the upper mold. A lower mold is installed on the device base, two symmetrical cavities communicating with a forming cavity of the lower mold are formed in the device base, when demolding is needed, an upper mold is driven by a hydraulic cylinder to vertically ascend, and the upper mold makes contact with two contact blocks in the ascending process; the sliding rod is driven to vertically ascend by a certain distance through mutual cooperation of the contact block and the transmission rod, so that the ejector plate in the lower mold can be driven to vertically ascend, the purpose of automatic demolding is achieved, when the hydraulic cylinder drives the upper mold to vertically descend, the sliding rod and the ejector plate automatically reset, and next work can be carried out.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mold device that facilitates demolding. Background Technology

[0002] Molds are various molds and tools used in industrial production to obtain the desired products through injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In short, molds are tools used to make shaped items. In existing molds, it is not suitable to use large mechanical demolding such as hydraulic cylinders. When operators demold manually, it is difficult to remove the mold, which increases the workload of operators and wastes human and material resources.

[0003] A high-precision mold for producing automotive parts, patent number CN201821247836.1, includes an upper fixed base and a lower fixed base. The upper fixed base is located above the lower fixed base, and an upper template is provided below the upper fixed base. The upper template is provided with a punch and a positioning pin. A lower template is provided above the lower fixed base. The above mold does not have an automatic demolding structure. Demolding requires manual demolding by the operator, which increases the workload of the operator and wastes human and material resources. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the shortcomings of the existing technology, this utility model provides a mold device that facilitates demolding, thus solving the above-mentioned technical problems.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a mold device for easy demolding, comprising a device base, two mutually symmetrical support columns mounted on the top of the device base, a common top plate mounted on the top of the two support columns, a hydraulic cylinder mounted on the top plate, an upper mold mounted on the actuation output end of the hydraulic cylinder, a lower mold mounted on the device base, two mutually symmetrical cavities communicating with the forming cavity of the lower mold being formed inside the device base, sliding cavities extending into the support columns being formed on the inner walls of the two cavities on the side furthest from each other, limiting grooves communicating with the sliding cavities being formed on the inner sides of the two support columns, sliding rods being slidably installed in the two cavities, transmission rods being connected to the two sliding rods, and contact blocks protruding from the ends of the two transmission rods that are close to each other, and an ejector plate being slidably installed in the lower mold, the bottom of the ejector plate being connected to the two sliding rods.

[0008] Preferably, a plurality of return springs are arranged axially spaced within the cavity, with one end of each return spring abutting against the inner wall of the cavity and the other end abutting against the sliding rod.

[0009] Preferably, the two transmission rods are slidingly arranged in the limiting sliding grooves on the two supporting columns respectively.

[0010] Preferably, four guide columns are arranged between the top plate and the device base in a matrix, and four protrusions are protruded on the upper die, and the four protrusions are slidingly arranged on the four guide columns respectively.

[0011] Preferably, two mutually symmetrical guide rods are protruded on the bottom of the upper die, and two mutually symmetrical guide holes matched with the guide rods are arranged on the top of the lower die.

[0012] Preferably, the two contact blocks are arranged above the upper die.

[0013] Preferably, rubber buffer blocks are arranged on the bottom surfaces of the two contact blocks.

[0014] Compared with the prior art, the mold device provided by the utility model has the following beneficial effects: the sliding rod, the reset spring, the transmission rod and the contact block are matched with each other, when demolding is needed, the upper die is vertically lifted by the hydraulic cylinder, the upper die is in contact with the two contact blocks in the lifting process, the sliding rod is vertically lifted by a certain distance by the matching of the contact block and the transmission rod, the ejection plate in the lower die is lifted vertically, and the purpose of automatic demolding is achieved, when the upper die is vertically lowered by the hydraulic cylinder, the sliding rod and the ejection plate are automatically reset, and the next work can be carried out. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the main structure of the utility model;

[0016] Figure 2 It is a sectional structure schematic view of the transmission rod, the sliding rod and other structures of the utility model;

[0017] Figure 3 It is a side sectional structure schematic view of the device base, the top plate and other structures of the utility model;

[0018] Figure 4 It is a connection structure schematic view of the sliding rod, the top plate and other structures of the utility model.

[0019] Wherein: 1, device base; 2, supporting column; 3, top plate; 4, hydraulic cylinder; 5, upper die; 6, protrusion; 7, guide column; 8, lower die; 9, guide hole; 10, guide rod; 11, ejection plate; 12, cavity; 13, sliding cavity; 14, sliding rod; 15, limiting sliding groove; 16, reset spring; 17, transmission rod; 18, contact block. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be further described in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0021] In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the indicated device or element to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for description purposes, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] Please refer to Figures 1-4 A mold device convenient for demolding, comprising a device base 1, two mutually symmetrical supporting columns 2 are installed on the top of the device base 1, the same top plate 3 is installed on the top of the two supporting columns 2, the hydraulic cylinder 4 is installed on the top plate 3, the upper mold 5 is installed on the action output end of the hydraulic cylinder 4, the lower mold 8 is installed on the device base 1, two mutually symmetrical cavities 12 are formed in the device base 1 and are communicated with the molding cavity of the lower mold 8, the sliding cavity 13 extending into the supporting column 2 is formed in the inner wall of the side away from each other of the two cavities 12, the limiting sliding groove 15 communicated with the sliding cavity 13 is formed in the inner side of the two supporting columns 2, the sliding rod 14 is slidably installed in the two cavities 12, the transmission rod 17 is connected to the two sliding rods 14, the contact block 18 is protruded on the end of the two transmission rods 17 close to each other, the ejection plate 11 is slidably installed in the lower mold 8, and the bottom of the ejection plate 11 is connected with the two sliding rods 14.

[0024] When the demolding is needed, the upper mold 5 is driven to vertically ascend by the hydraulic cylinder 4, and in the ascending process, the two contact blocks 18 are contacted, and the sliding rod 14 is driven to vertically ascend a certain distance through the cooperation of the contact blocks 18 and the transmission rods 17, so that the ejection plate 11 in the lower mold 8 can be driven to vertically ascend, thereby achieving the purpose of automatic demolding. When the upper mold 5 is driven to vertically descend by the hydraulic cylinder 4, the sliding rod 14 and the ejection plate 11 are automatically reset, so that the next work can be carried out.

[0025] Specifically, in the embodiment, a plurality of reset springs 16 are arranged in the cavity 12 and spaced along the axial direction. One end of the reset spring 16 abuts against the inner wall of the cavity 12, and the other end of the reset spring 16 abuts against the sliding rod 14.

[0026] The reset spring 16 can automatically reset the ejection plate 11 and the sliding rod 14, and can make the sliding rod 14 always abut against the bottom inner wall of the cavity 12 and make the ejection plate 11 always abut against the bottom inner wall of the molding cavity of the lower mold 8 in the normal state.

[0027] Specifically, in the embodiment, the two transmission rods 17 are slidingly arranged in the limiting sliding grooves 15 on the two support columns 2.

[0028] The limiting sliding grooves 15 can limit the movement range of the transmission rods 17.

[0029] Specifically, in the embodiment, four guide columns 7 are connected between the top plate 3 and the device base 1 in a matrix distribution, and four protrusions 6 are protrudingly arranged on the upper mold 5, and the four protrusions 6 are slidingly arranged on the four guide columns 7, respectively.

[0030] The guide columns 7 and the protrusions 6 can guide the movement direction of the upper mold 5 and make the movement process of the upper mold 5 more stable.

[0031] Specifically, in the embodiment, two mutually symmetrical guide rods 10 are protrudingly arranged on the bottom of the upper mold 5, and two mutually symmetrical guide holes 9 which are matched with the guide rods 10 are arranged on the top of the lower mold 8.

[0032] The guide rods 10 and the guide holes 9 can guide the closing of the upper mold 5 and the lower mold 8.

[0033] Specifically, in the embodiment, the two contact blocks 18 are arranged above the upper mold 5.

[0034] Specifically, in the embodiment, rubber buffer blocks are arranged on the bottom surfaces of the two contact blocks 18, which can reduce the abrasion of the contact blocks 18 to the upper mold 5.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mold apparatus for facilitating demolding, comprising an apparatus base, characterized by: The top of the device base is provided with two mutually symmetrical support columns, the top of the two support columns is provided with a same top plate, the top plate is provided with a hydraulic cylinder, the action output end of the hydraulic cylinder is provided with an upper mold, the device base is provided with a lower mold, the device base is provided with two mutually symmetrical cavities which are communicated with the forming cavity of the lower mold, the inner wall of the side away from each other of the two cavities is provided with a sliding cavity which extends into the support column, the inner side of the two support columns is provided with a limiting sliding groove which is communicated with the sliding cavity, the two cavities are both provided with a sliding rod which is slidably arranged, the two sliding rods are both connected with a transmission rod, the end of the two transmission rods which are close to each other is provided with a contact block, the lower mold is slidably provided with an ejection plate, the bottom of the ejection plate is connected with the two sliding rods.

2. A mold apparatus facilitating demolding according to claim 1, characterized by: The cavity is provided with a plurality of reset springs which are arranged along the axial direction, one end of the reset spring abuts against the inner wall of the cavity, the other end of the reset spring abuts against the sliding rod.

3. The mold apparatus of claim 1, wherein: The two transmission rods are respectively slidably arranged in the limiting sliding grooves on the two support columns.

4. The mold apparatus of claim 1, wherein: The top plate and the device base are connected with four guide columns which are arranged in a matrix, the upper mold is provided with four protrusions, the four protrusions are respectively slidably arranged on the four guide columns.

5. The mold apparatus of claim 1, wherein: The bottom of the upper mold is provided with two mutually symmetrical guide rods, the top of the lower mold is provided with two mutually symmetrical guide holes which are matched with the guide rods.

6. The mold apparatus of claim 1, wherein: The two contact blocks are both arranged above the upper mold.

7. The mold apparatus of claim 1, wherein: The bottom surface of the two contact blocks is provided with a rubber buffer block.

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