Drawer type plastic mold capable of rapidly replacing mold core

Abstract

The utility model discloses a drawer type plastic mould capable of quickly replacing mould cores, which comprises a male mould plate and a female mould plate, a female mould core is arranged on the female mould plate, a male mould core is arranged on the male mould plate, the female mould core is positioned above the male mould core, two guide blocks are arranged on the male mould plate, and the two guide blocks are arranged on the male mould plate. The male mold core is arranged between the two guide blocks in a sliding manner, a liftable movable insert pin is vertically arranged in the male mold core, a liftable ejector pin is vertically arranged in the male mold plate, and the ejector pin is located under the movable insert pin. The drawer type plastic mold capable of quickly replacing the mold core is used for injection molding of products with metal inserts, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to a drawer-type plastic mold for quickly replacing a mold core, and belongs to the technical field of clamp machinery. Background Art

[0002] Plastic products are generally produced by injection molding using injection molds. Some plastic products also have metal inserts, which need to be placed in the molding mold during the injection molding process. The traditional method is usually to place the metal inserts one by one into the mold cavity manually or by a robot under the open and closed state of the male and female molds before injection molding. Due to the large number of inserts, the location is far from the operator, and the inserts are small and difficult to place, the time to place the metal inserts is very long, which makes the product molding cycle very long and difficult for workers to operate. Utility Model Content

[0003] The technical problem mainly solved by the utility model is to provide a drawer-type plastic mold with a quick mold core replacement. The drawer-type plastic mold with a quick mold core replacement is used for injection molding of products with metal inserts and has high working efficiency.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: to provide a drawer-type plastic mold for quickly changing mold cores, including a male mold plate and a female mold plate, the female mold core is arranged on the female mold plate, the male mold core is arranged on the male mold plate, the female mold core is located above the male mold core, two guide blocks are arranged on the male mold plate, the male mold core is slidably arranged between the two guide blocks, a movable inlay pin that can be raised and lowered is vertically arranged in the male mold core, a liftable ejector pin is vertically arranged in the male mold plate, and the ejector pin is located directly below the movable inlay pin.

[0005] Preferably, a pressure plate is provided below the male mold core, the pressure plate is located between two guide blocks, the pressure plate is provided on the male mold plate, the lower part of the movable insert pin is located inside the pressure plate, and the upper end of the ejector pin is located inside the pressure plate.

[0006] Preferably, a spring is provided in the pressure plate and the male mold core, the spring is sleeved on the movable insert pin, a flange is provided at the lower end of the movable insert pin, and the lower end of the spring supports the flange.

[0007] Preferably, slideways are provided on the two guide blocks, and the male mold core slides on the slideways.

[0008] Preferably, the female mold core is provided with a positioning block protruding downward, and the male mold core is provided with a positioning groove matching the positioning block.

[0009] Preferably, the female mold core is provided with a guide column protruding downward, and the male mold core is provided with a guide sleeve matching the guide column.

[0010] Preferably, a handle extending laterally is provided on the male mold core.

[0011] Preferably, a connecting block is provided on the male mold core, and one end of the handle is mounted on the connecting block.

[0012] Preferably, a positioning pin is provided on the male template.

[0013] Preferably, a position sensing switch is provided on the male template.

[0014] The beneficial effects of the utility model are as follows: the drawer-type plastic mold with quick-change mold core of the utility model is used for injection molding of products with metal inserts, and has high work efficiency. The detachable male mold core greatly shortens the time for installing the insert when injection molding plastic products with inserts, thereby greatly shortening the entire molding cycle and improving work efficiency. This mechanism is suitable for most small molds for injection molding products with metal inserts, and the weight of the male mold core mechanism should not exceed 10 kilograms for easy replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 and Figure 2 It is a structural schematic diagram of a drawer-type plastic mold for quickly replacing mold cores of the utility model;

[0017] Figure 3 yes Figure 1 The enlarged view of point A in the middle;

[0018] Figure 4 The utility model is a schematic diagram of a male mold core in a drawer-type plastic mold for quickly replacing mold cores. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figures 1 to 4The embodiment of the utility model includes: a drawer-type plastic mold for quickly changing mold cores, which includes a male mold plate 12 and a female mold plate 14, the female mold core 1 is arranged on the female mold plate 14, the male mold core 2 is arranged on the male mold plate 12, the female mold core 1 is located above the male mold core 2, the male mold plate 12 is provided with two guide blocks 3, the male mold core 2 is slidably arranged between the two guide blocks 3, the male mold core 2 is vertically provided with a movable insert pin 4 that can be raised and lowered, the male mold plate 12 is vertically provided with a liftable ejector pin 6, and the ejector pin 6 is located directly below the movable insert pin 4.

[0021] Preferably, a pressure plate 13 is provided below the male mold core 2 , the pressure plate 13 is located between two guide blocks 3 , the pressure plate 13 is provided on the male mold plate 12 , the lower part of the movable insert pin 4 is located inside the pressure plate 13 , and the upper end of the ejector pin 6 is located inside the pressure plate 13 .

[0022] Preferably, a spring 5 is provided inside the pressure plate 13 and the male mold core 2 , and the spring 5 is sleeved on the movable insert pin 4 . A flange 17 is provided at the lower end of the movable insert pin 4 , and the diameter of the flange 17 is larger than the diameter of the movable insert pin 4 . The lower end of the spring 5 presses against the flange 17 .

[0023] Preferably, slideways 16 are provided on the two guide blocks 3 , and the male mold core 2 can slide on the slideways 16 .

[0024] Preferably, the female mold core 1 is provided with a positioning block 8 protruding downward, and the male mold core 2 is provided with a positioning groove 15 matching the positioning block 8 .

[0025] Preferably, the female mold core 1 is provided with a guide column 9 protruding downward, and the male mold core 2 is provided with a guide sleeve 11 matching the guide column 9 .

[0026] Preferably, the male mold core 2 is provided with a handle 7 extending laterally.

[0027] Preferably, a connecting block 10 is provided on the male mold core 2 , and one end of the handle 7 is mounted on the connecting block 10 .

[0028] Preferably, a positioning pin 18 and a position sensing switch 19 are provided on the male template 12 .

[0029] When the drawer-type plastic mold with quick mold core replacement of the utility model is used, the female mold core 1 and the male mold core 2 are molded together to inject the product, and the slide 16 (or guide rail) is used to fix and guide the male mold core 2 during the disassembly and assembly process. The male mold core 2 is taken out and put back by the handle 7, and the handle 7 is connected and fixed to the male mold core 2 by the handle connecting block 10. The movable insert pin 4 is fixed in the male mold core 2 by the pressing plate 13. The ejection of the product 20 after injection molding is pushed by the ejector pin 6 to push the movable insert pin 4 upward to eject it. After the ejection of the product 20 is completed, the ejector pin 6 retreats, and the movable insert pin 4 returns to its original position by the spring 5. The movable insert pin 4 and the ejector pin 6 are two separate parts, so that the male mold core 2 can be removed separately. The structure cleverly solves the problem of how to accurately position the ejector 6 after the two sets of male mold cores 2 are interchanged. The male mold core 2 can be removed after the ejector 6 retreats. There are 2 or more sets of this interchangeable male mold core mechanism, and then another set of interchangeable male mold core mechanism with metal inserts installed is installed to achieve rapid interchange of the male mold core 2, so that the injection molding production is continuous and efficient. During injection molding production, the product metal inserts can be placed on the spare male mold core 2. When inserting the interchangeable male mold core mechanism, the male mold core 2 stops moving when it hits the positioning pin 18, and the impact position sensing switch 19 gives an installation signal. After the male mold core 2 is successfully inserted, the mold can be closed to start the next injection molding.

Claims

1. A drawer-type plastic mold for quickly changing mold cores, comprising a male mold plate and a female mold plate, wherein the female mold core is arranged on the female mold plate, and the male mold core is arranged on the male mold plate, wherein the female mold core is located above the male mold core, and wherein: Two guide blocks are arranged on the male mold plate, the male mold core is slidably arranged between the two guide blocks, a movable inserting pin that can be raised and lowered is vertically arranged in the male mold core, and a lifter pin that can be raised and lowered is vertically arranged in the male mold plate, and the lifter pin is located directly below the movable inserting pin.

2. The drawer-type plastic mold for quick mold core replacement according to claim 1, characterized in that: A pressing plate is arranged below the male mold core, the pressing plate is located between two guide blocks, the pressing plate is arranged on the male mold plate, the lower part of the movable inlay pin is located in the pressing plate, and the upper end of the ejector pin is located in the pressing plate.

3. The drawer-type plastic mold for quick mold core replacement according to claim 2, characterized in that: A spring is arranged inside the pressing plate and the male mold core, the spring is sleeved on the movable inserting pin, a flange is arranged at the lower end of the movable inserting pin, and the lower end of the spring supports the flange.

4. The drawer-type plastic mold for quick mold core replacement according to claim 3, characterized in that: The two guide blocks are provided with slideways, and the male mold core slides on the slideways.

5. The drawer-type plastic mold for quick mold core replacement according to claim 4, characterized in that: The female mold core is provided with a positioning block protruding downward, and the male mold core is provided with a positioning groove matched with the positioning block.

6. The drawer-type plastic mold for quick mold core replacement according to claim 5, characterized in that: The female mold core is provided with a guide column protruding downward, and the male mold core is provided with a guide sleeve matching the guide column.

7. The drawer-type plastic mold for quick mold core replacement according to claim 6, characterized in that: The male mold core is provided with a handle extending laterally.

8. The drawer-type plastic mold for quick mold core replacement according to claim 7, characterized in that: The male mold core is provided with a connecting block, and one end of the handle is mounted on the connecting block.

9. The drawer-type plastic mold for quick mold core replacement according to claim 8, characterized in that: The male template is provided with a positioning pin.

10. The drawer-type plastic mold for quick mold core replacement according to claim 9, characterized in that: A position sensing switch is arranged on the male template.

Images