Double-color side core changing mold

Abstract

The utility model belongs to the technical field of core changing dies, and particularly relates to a double-color side surface core changing die which comprises an oil cylinder, a side surface core changing device is arranged on the left side of the oil cylinder, the side surface core changing device comprises a first injection unit and a second injection unit, the first injection unit is arranged on the left side of the oil cylinder, and the second injection unit is arranged on the left side of the oil cylinder. According to the double-color side face core changing mold, the side face core changing device is arranged, the machine table can rotate by 180 degrees, the first injection position is rotated to the second injection position, automatic production is achieved in the whole process, manual intervention is not needed, the production efficiency and the yield can be greatly improved, economic benefits are remarkably improved, and the problems that products are crushed by the mold during second injection, and optics is affected are solved; the problems that in the background technology, when the mold is not placed in place, the mold is damaged, the requirement for cooperation of all machines of personnel is high, and operation is tedious are solved, the structure action is simple and safe, the structure is compact, the double-color product with the soft and hard material side face needing core replacement can be effectively solved, and the mold is suitable for the product with the side face needing soft rubber wrapping.

Description

Technical Field

[0001] The utility model relates to the technical field of core-changing molds, in particular to a double-color side core-changing mold. Background Art

[0002] A two-color injection mold is a mold that combines two different colors and types of plastics, mostly a soft plastic and a hard plastic, and uses a two-color injection molding machine to inject them in a certain order, thereby organically combining the two plastics into a complete product.

[0003] In the existing technology, two sets of molds need to be developed to complete two colors of a product. The first set of molds is used to inject product 1, and product 1 needs to be manually placed into the second set of molds. If it is not placed properly, the mold will be damaged. It requires high coordination between personnel and machines, and the operation is cumbersome. An accident in one link will cause damage to the product or mold, and the defective rate remains high.

[0004] For this reason, we urgently need to provide a two-color side core-changing mold. Utility Model Content

[0005] The purpose of the present invention is to provide a two-color side core-changing mold to solve the problems raised in the above background technology that the mold will be damaged when it is not placed in place, the coordination of personnel and machines is high, and the operation is cumbersome.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a two-color side core-changing mold, comprising an oil cylinder, a side core-changing device is provided on the left side of the oil cylinder, and the side core-changing device includes a first-shot unit and a second-shot unit.

[0007] The first injection unit is arranged on the left side of the oil cylinder, and the second injection unit is arranged on the left side of the oil cylinder.

[0008] The single-shot unit includes a pressure block, a T-shaped block, a slider seat, a wear-resistant block, a core fixing block, a slider core and a heat insulation plate. The pressure block is fixedly installed at the front and rear ends of the left side of the oil cylinder, the T-shaped block is fixedly installed at the output end of the oil cylinder, the slider seat is installed on the outside of the T-shaped block and is slidably connected between the front and rear pressure blocks, the wear-resistant block is fixedly installed on the right side of the slider seat, the core fixing block is installed on the left side of the slider seat, the slider core is installed on the left side of the core fixing block, and the heat insulation plate is fixedly installed on the left side of the oil cylinder.

[0009] Preferably, the first-shot unit and the second-shot unit are installed on the left and right sides of the machine, and the machine can be rotated to rotate the first-shot position to the second-shot position, without the need to use two molds, and without the need to manually place the first-shot product in the second set of molds, thereby improving processing speed and thus improving the product yield.

[0010] Preferably, a protrusion is provided at the lower end of the side surface of the slider seat, and the upper surface of the protrusion abuts against the lower surface of the pressing block, so that the slider seat moves along the pressing block.

[0011] Preferably, the two-shot unit includes an oblique bullet core, an oblique bullet fixing block and a spring. The oblique bullet core is arranged at the front and rear ends of the left side of the cylinder, the oblique bullet fixing block is installed on the top of the oblique bullet core, and the spring is installed inside the oblique bullet fixing block.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This two-color side core-changing mold is equipped with a side core-changing device. The machine can be rotated 180 degrees, so that the first shot position can be rotated to the second shot position. The production process is fully automated and no human intervention is required. It can greatly improve production efficiency and yield, significantly improve economic benefits, and there is no need to worry about the mold crushing the product and affecting the optics during the second shot. It solves the problems raised in the background art that when the mold is not placed in place, it will cause damage to the mold, require high coordination between personnel and various machines, and is cumbersome to operate.

[0014] 2. The two-color side core-changing mold has a simple and safe structure and compact operation. It can effectively solve the problem of two-color products that need to change the core on the side of soft and hard materials. It is suitable for products that need to be coated with soft rubber on the side. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of an injection unit of the present invention;

[0017] Figure 3 This is a schematic structural diagram of the connection between the first injection unit and the second injection unit of the present invention;

[0018] Figure 4 This is a disassembled view of the connection between the slider seat and the pressure block of the utility model.

[0019] In the figure: 1. Oil cylinder; 201. Pressure block; 202. T-shaped block; 203. Slider seat; 204. Wear-resistant block; 205. Core fixing block; 206. Slider core; 207. Heat insulation board; 301. Oblique elastic core; 302. Oblique elastic fixing block; 303. Spring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-4 , the utility model provides a technical solution:

[0022] Example 1:

[0023] A two-color side core-changing mold includes a cylinder 1 that provides power for a slider seat 203 to move forward and backward. A side core-changing device is provided on the left side of the cylinder 1. The side core-changing device includes a first-shot unit and a second-shot unit.

[0024] The first-shot unit is set on the left side of the oil cylinder 1, and the second-shot unit is set on the left side of the oil cylinder 1. The first-shot unit and the second-shot unit are installed on the left and right sides of the machine, and the machine can be rotated 180 degrees to rotate the first-shot position to the second-shot position. There is no need to use two molds, and there is no need to manually place the first-shot product in the second set of molds, which improves processing speed and thus improves the product yield.

[0025] An injection unit includes a pressure block 201, a T-shaped block 202, a slider seat 203, a wear-resistant block 204, a core fixing block 205, a slider core 206 and a heat insulation board 207. The pressure block 201 is fixedly installed at the front and rear ends of the left side of the oil cylinder 1. The T-shaped block 202 is fixedly installed at the output end of the oil cylinder 1. The slider seat 203 is connected to the oil cylinder 1 through the T-shaped block 202. The slider seat 203 is installed on the outside of the T-shaped block 202 and is slidably connected between the front and rear pressure blocks 201. The core fixing block 205 is fixed by the slider seat 203. A convex block is opened at the lower end of the side of the slider seat 203, and the upper surface of the convex block is in contact with the pressure block. The lower surface of 201 abuts against the slider seat 203, so that the slider seat 203 moves along the pressure block 201. The wear-resistant block 204 is fixedly installed on the right side of the slider seat 203 to protect the slider seat 203 from wear and provide locking force to the slider seat 203. The core fixing block 205 is installed on the left side of the slider seat 203. The slider core 206 is fixed by the core fixing block 205. The slider core 206 is installed on the left side of the core fixing block 205. The product is vertically cored by the slider core 206. The heat insulation board 207 is fixedly installed on the left side of the cylinder 1. The heat insulation board 207 isolates the temperature on the mold and prevents heat from being transferred to the cylinder 1.

[0026] Example 2: Based on Example 1: The second injection unit includes an oblique elastic core 301, an oblique elastic fixing block 302 and a spring 303. The oblique elastic core 301 is arranged at the front and rear ends of the left side of the cylinder 1. The product is ejected laterally through the oblique elastic core 301. The oblique elastic fixing block 302 is installed on the top of the oblique elastic core 301. The oblique elastic fixing block 302 fixes the oblique elastic core 301 and provides guidance for the stroke. The spring 303 is installed inside the oblique elastic fixing block 302 to provide elastic force to the oblique elastic assembly.

[0027] During use, after completing the first shot of the product, the mold is opened, and after the wear-resistant block 204 and the front mold are opened, the oil cylinder 1 moves to the right, and the slider seat 203, the core fixing block 205 and the slider core 206 move to the right under the pull of the oil cylinder 1, so as to achieve the purpose of ejecting the side core of the first shot product, and at the same time leave space for the injection of the second shot product. After completing the injection of the hard material, the slider seat 203, the core fixing block 205 and the slider core 206 remain in the core-out state and do not move. At this time, the machine rotates 180 degrees to the second shot position to complete the soft material injection molding. When the mold is opened, the local undercut part of the soft material is ejected from the mold core by the oblique spring mechanism, completing the second shot core change.

[0028] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

Claims

1. A two-color side core-changing mold, comprising a cylinder (1), characterized in that: A side core changing device is provided on the left side of the oil cylinder (1), and the side core changing device comprises a first-shot unit and a second-shot unit; The first injection unit is arranged on the left side of the oil cylinder (1), and the second injection unit is arranged on the left side of the oil cylinder (1); The single-shot unit comprises a pressing block (201), a T-shaped block (202), a slider seat (203), a wear-resistant block (204), a core fixing block (205), a slider core (206) and a heat insulation board (207); the pressing block (201) is fixedly mounted on the front and rear ends of the left side of the oil cylinder (1); the T-shaped block (202) is fixedly mounted on the output end of the oil cylinder (1); the slider seat (203) is mounted on the outside of the T-shaped block (202) and is slidably connected between the front and rear pressing blocks (201); the wear-resistant block (204) is fixedly mounted on the right side of the slider seat (203); the core fixing block (205) is mounted on the left side of the slider seat (203); the slider core (206) is mounted on the left side of the core fixing block (205); and the heat insulation board (207) is fixedly mounted on the left side of the oil cylinder (1).

2. The double-color side core-changing mold according to claim 1, characterized in that: The first shot unit and the second shot unit are installed on the left and right sides of the machine, and the machine can be rotated 180 degrees to rotate the first shot position to the second shot position.

3. The double-color side core-changing mold according to claim 1, characterized in that: A convex block is provided at the lower end of the side surface of the slider seat (203), and the upper surface of the convex block abuts against the lower surface of the pressing block (201).

4. The double-color side core-changing mold according to claim 1, characterized in that: The two-shot unit comprises an oblique bullet core (301), an oblique bullet fixing block (302) and a spring (303); the oblique bullet core (301) is arranged at the front and rear ends of the left side of the oil cylinder (1); the oblique bullet fixing block (302) is installed on the top of the oblique bullet core (301); and the spring (303) is installed inside the oblique bullet fixing block (302).

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