Pull buckle assembly of injection mold

Abstract

The utility model discloses an injection mold pull buckle assembly which comprises a workbench, a top frame is arranged at the top of the workbench, an upper mold and a lower mold are arranged on the top frame and the workbench respectively, pull buckle assemblies are arranged on the two sides of the upper mold, and a demolding assembly is arranged at the bottom of the workbench. The pull buckle assembly comprises a pull rod and a limiting block which are fixed to the two sides of the upper die and the two sides of the lower die respectively, a through hole is formed in the limiting block, a buckle rod is rotationally connected into the through hole and is of an L-shaped structure, one end of the buckle rod is inserted into a groove in one side of the pull rod, the other side of the buckle rod is connected with a second spring, and an electromagnet is inserted into the second spring. One sides of the electromagnet and the second spring are fixedly connected with the inner wall of the limiting block; the demolding assembly comprises a supporting frame fixed to the bottom of the workbench, and the top of the supporting frame is slidably connected with an ejector rod. According to the device, the stability of connection between the upper mold and the lower mold is ensured while quick connection between the upper mold and the lower mold is realized, and the product injection molding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection mold accessories, in particular to an injection mold buckle assembly. Background Art

[0002] Injection mold latches are one of the injection mold accessories. Injection mold latches (also called hooks or fasteners) are a design element that is mainly used to ensure that the two halves of the mold can be accurately aligned when closing, and to help maintain the relative position between the movable mold and the fixed mold when opening the mold.

[0003] At present, the injection mold buckle is mainly used to connect and position the upper and lower molds by connecting the pull rod and the pull buckle. The pull rod is connected to the pull buckle by insertion and using spring support, but there is a slight misalignment problem, which affects the stability of the connection between the upper and lower molds, so it needs to be improved. Utility Model Content

[0004] The purpose of the present utility model is to provide an injection mold buckle assembly to solve the problem of general stability of the upper and lower molds of the current buckle fixing proposed in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an injection mold buckle assembly, comprising a workbench, a top frame provided on the top of the workbench, an upper mold and a lower mold provided on the top frame and the workbench, respectively, buckle assemblies provided on both sides of the upper mold, and a demoulding assembly provided at the bottom of the workbench;

[0006] The buckle assembly includes a pull rod and a limit block respectively fixed on both sides of the upper mold and the lower mold. A through hole is opened on the limit block. A buckle rod is rotatably connected inside the through hole. The buckle rod has an "L"-shaped structure. One end of the buckle rod is inserted into a groove on one side of the pull rod. The other side of the buckle rod is connected to a second spring. An electromagnet is inserted into the interior of the second spring. One side of the electromagnet and the second spring are fixedly connected to the inner wall of the limit block.

[0007] The demoulding assembly includes a support frame fixed to the bottom of the workbench, the top of the support frame is slidably connected to a push rod, the top of the push rod passes through the workbench and is connected to the lower mold assembly, and one end of the pull rod passes through the limit block and the workbench and is supported on both sides of the push rod.

[0008] Preferably, an opening is provided on the workbench, a push rod is inserted into the opening, and the push rod is in loose contact with the pull rod.

[0009] Preferably, the bottom of the push rod is fixedly connected to a first spring and a limiting rod, and the limiting rod is inserted into the first spring.

[0010] Preferably, a through hole is provided on the top side of the support frame, and one end of the limiting rod is inserted into the through hole.

[0011] Preferably, the buckle rod is made of iron, and is magnetically connected to the electromagnet.

[0012] Preferably, a hydraulic cylinder is installed on the top of the top frame, and one end of the hydraulic cylinder is fixedly connected to the top of the upper mold.

[0013] Preferably, the ejector rod is in sliding connection with the lower die, and the limiting rod is in sliding connection with the support frame.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) This device can achieve rapid connection between the upper mold and the lower mold while ensuring the stability of the connection between the upper mold and the lower mold, thereby improving the accuracy of product injection molding.

[0016] (2) This device sets a pull rod and a limit block on both sides of the upper die and the lower die respectively, and connects one end of the pull rod through the limit block and the workbench to both sides of the ejector rod at the bottom of the workbench. In this way, the limit block and the workbench can be used to limit and stabilize the pull rod, and the lifting and lowering of the ejector rod can be controlled at the same time, thereby ensuring the stability of the connection between the upper die and the lower die.

[0017] (3) This device is provided with a support frame at the bottom of the workbench, and the top of the support frame is connected to the ejector rod through a first spring. When the pull rod and the ejector rod are separated, the first spring automatically expands to support the ejector rod to enter the lower mold and eject the product inside the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a buckle assembly of an injection mold of the utility model;

[0019] Figure 2 This is a cross-sectional view of an injection mold buckle assembly of the utility model;

[0020] Figure 3 This utility model is an injection mold buckle assembly Figure 2 Enlarged view of point A in the middle.

[0021] In the figure: 1. Hydraulic cylinder; 2. Ejector frame; 3. Pull-button assembly; 31. Pull rod; 32. Limit block; 33. Electromagnet; 34. Second spring; 35. Buckle rod; 4. Workbench; 5. Upper mold; 6. Lower mold; 7. Demolding assembly; 71. First spring; 72. Limit rod; 73. Support frame; 74. Ejector rod. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-3 The present invention provides a technical solution: an injection mold buckle assembly, including a workbench 4, a top frame 2 is provided on the top of the workbench 4, and a hydraulic cylinder 1 is installed on the top of the top frame 2, and one end of the hydraulic cylinder 1 is fixedly connected to the top of the upper mold 5; this structure can realize the automatic lifting of the upper mold 5 through the hydraulic cylinder 1, which is convenient for the upper mold 5 and the lower mold 6 to close and open the mold; an opening is opened on the workbench 4, and a push rod 74 is inserted inside the opening, and the push rod 74 is not fixed in contact with the pull rod 31; when the pull rod 31 of this structure contacts the top side of the push rod 74, pressure can be applied to the push rod 74, so that the push rod 74 remains in the retracted state, and injection molding can be carried out inside the lower mold 6; the bottom of the push rod 74 is fixedly connected to the first spring 71 and the limit rod 72, and the limit rod 72 is inserted inside the first spring 71; this structure is provided When the locking cam 73 is in the state of being stretched, the locking cam 73 is in the state of being lifted up, and the locking cam 73 is in the state of being lifted up, so that the locking cam 73 can be locked and locked in the state of being demolded.

[0024] The buckle assembly 3 includes a pull rod 31 and a limit block 32 fixed on both sides of the upper mold 5 and the lower mold 6 respectively. A through hole is opened on the limit block 32, and a buckle rod 35 is rotatably connected inside the through hole. The buckle rod 35 is made of iron and is magnetically adsorbed and connected to the electromagnet 33. This structure can separate the buckle rod 35 from the pull rod 31 by adsorption with the buckle rod 35 after the electromagnet 33 is turned on, thereby facilitating the separation of the pull rod 31 from the limit block 32. The buckle rod 35 is an "L"-shaped structure, one end of the buckle rod 35 is inserted into a groove on one side of the pull rod 31, and the other side of the buckle rod 35 is connected to a second spring 34, and an electromagnet 33 is inserted inside the second spring 34. One side of the electromagnet 33 and the second spring 34 is fixedly connected to the inner wall of the limit block 32.

[0025] The demolding assembly 7 includes a support frame 73 fixed to the bottom of the workbench 4, and the top of the support frame 73 is slidably connected to a push rod 74. The top of the push rod 74 passes through the workbench 4 and is connected to the lower mold 6. One end of the pull rod 31 passes through the limit block 32 and the workbench 4 and is supported on both sides of the push rod 74. This device lengthens the pull rod 31 so that the pull rod 31 can be inserted into the limit block 32 and then inserted into the workbench 4 at the same time, thereby ensuring the stability of the limit block 32, improving the stability of the connection between the upper mold 5 and the lower mold 6, and avoiding positional misalignment of the upper mold 5 and the lower mold 6.

[0026] Working principle: When using the injection mold buckle assembly, during the mold closing process, the hydraulic cylinder 1 pushes the upper mold 5 down, causing the upper mold 5 to slowly approach the lower mold 6, and at the same time, the pull rods 31 on both sides of the upper mold 5 are inserted into the inside of the limit blocks 32 on both sides of the lower mold 6. When the upper mold 5 and the lower mold 6 complete the mold closing, the lower end of the pull rod 31 passes through the workbench 4 and contacts both sides of the ejector rod 74, thereby supporting the ejector rod 74 to descend in height, compressing the first spring 71 at the bottom of the ejector rod 74, and then the electromagnet 33 is closed, supporting the buckle rod under the action of the electromagnet 33. 35 is inserted into the groove on the outer wall of the pull rod 31. At this time, the pull rod 31 is fixed with the limit block 32, and the upper mold 5 is stably connected with the lower mold 6. Then the injection molding work can be carried out. After the injection molding work is completed, the electromagnet 33 is turned on. After the electromagnet 33 is turned on, it automatically absorbs the support buckle rod 35 and rotates, so that the support buckle rod 35 is separated from the pull rod 31. At this time, the upper mold 5 opens the mold upward, and the pull rods 31 on both sides of the upper mold 5 are separated from the limit block 32. After the lower end of the pull rod 31 is separated from the ejector rod 74, the first spring 71 at the bottom of the ejector rod 74 supports the ejector rod 74 to eject the product.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An injection mold buckle assembly, comprising a workbench (4), a top frame (2) being provided on the top of the workbench (4), an upper mold (5) and a lower mold (6) being provided on the top frame (2) and the workbench (4), respectively, characterized in that: Buckle assemblies (3) are provided on both sides of the upper mold (5), and a demoulding assembly (7) is provided at the bottom of the workbench (4); The buckle assembly (3) includes a pull rod (31) and a limit block (32) respectively fixed on both sides of the upper mold (5) and the lower mold (6). A through hole is opened on the limit block (32). A buckle rod (35) is rotatably connected inside the through hole. The buckle rod (35) is in an "L"-shaped structure. One end of the buckle rod (35) is inserted into a groove on one side of the pull rod (31). The other side of the buckle rod (35) is connected to a second spring (34). An electromagnet (33) is inserted into the interior of the second spring (34). One side of the electromagnet (33) and the second spring (34) are fixedly connected to the inner wall of the limit block (32). The demoulding assembly (7) includes a support frame (73) fixed to the bottom of the workbench (4), the top of the support frame (73) is slidably connected to a push rod (74), the top of the push rod (74) passes through the workbench (4) and is combined with the lower mold (6), and one end of the pull rod (31) passes through the limit block (32) and the workbench (4) and is supported on both sides of the push rod (74).

2. The injection mold buckle assembly according to claim 1, characterized in that: An opening is provided on the workbench (4), a push rod (74) is inserted into the opening, and the push rod (74) is in loose contact with the pull rod (31).

3. The injection mold buckle assembly according to claim 1, characterized in that: The bottom of the top rod (74) is fixedly connected to a first spring (71) and a limiting rod (72), and the limiting rod (72) is inserted into the first spring (71).

4. The injection mold buckle assembly according to claim 1, characterized in that: A through hole is provided on the top side of the support frame (73), and one end of the limiting rod (72) is inserted into the through hole.

5. The injection mold buckle assembly according to claim 1, characterized in that: The buckle rod (35) is made of iron, and the buckle rod (35) is connected to the electromagnet (33) by magnetic attraction.

6. The injection mold buckle assembly according to claim 1, characterized in that: A hydraulic cylinder (1) is installed on the top of the top frame (2), and one end of the hydraulic cylinder (1) is fixedly connected to the top of the upper mold (5).

7. The injection mold buckle assembly according to claim 1, characterized in that: The push rod (74) is in sliding connection with the lower die (6), and the limiting rod (72) is in sliding connection with the support frame (73).

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