Injection molding part mold convenient to demold

Abstract

The utility model discloses an injection molding part mould convenient to demould, which comprises an upper mould and a lower mould, the top end of the lower mould is provided with an injection molding groove, the injection molding part mould further comprises a demoulding part, a linkage component and a connecting rod, the demoulding part is used for pushing an injection molding part in the injection molding groove, and the linkage component is used for driving the demoulding part to move. The connecting rod is used for connecting the demolding piece and the linkage assembly. By means of the design of the lower mold, the demolding piece, the linkage assembly and the connecting rod, when the upper mold moves in the direction away from the lower mold, the clamping block slides in the limiting groove till the bottom end of the clamping block makes contact with the bottom end of the limiting groove, and therefore the clamping block and the upper mold are driven to move synchronously; the clamping block drives the lifting plate to move synchronously through the vertical plate, the lifting plate drives the demolding plate to move synchronously through the connecting rod, the demolding plate pushes the injection molding part in the injection molding groove out of the injection molding groove, and therefore workers do not need to warp the injection molding part, the injection molding part is convenient to take, and manpower is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold which is easy to demould. Background Art

[0002] Products made of plastic as the main raw material are called plastic parts. In the process of processing plastic parts, injection molds are usually required. Injection molding is a processing method used in the mass production of certain parts with complex shapes. The mold is usually composed of an upper mold and a lower mold. After the upper mold and the lower mold are connected, the plastic is injected into the mold. After the plastic solidifies and the mold is formed, the demolding operation needs to be completed, that is, the upper mold and the lower mold are disassembled to obtain the injection molded part blank.

[0003] After the mold is opened, especially when the injection molded part adheres to the inside of the molding groove of the lower mold, the staff usually manually pry the injection molded part out of the lower mold by manually moving it, or manually prying the injection molded part out of the lower mold with tools. This method of removing the injection molded part is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the present invention is to provide an injection mold that is easy to demould, so as to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: an injection mold for easy demoulding, comprising an upper mold and a lower mold, wherein the top of the lower mold is provided with an injection groove for injection molding, and further comprising:

[0006] A demoulding member, the demoulding member is used to push the injection molded part inside the injection molding groove, and the demoulding member is arranged inside the injection molding groove;

[0007] A linkage assembly, the linkage assembly is used to drive the movement of the demoulding member, and the linkage assembly is arranged at the bottom end of the demoulding member;

[0008] A connecting rod is used to connect the demoulding piece and the linkage assembly, and the connecting rod is arranged between the demoulding piece and the linkage assembly.

[0009] Preferably, the demoulding member includes a demoulding plate, the bottom end of the injection groove is provided with a placement groove for placing the demoulding plate, and the bottom end of the demoulding plate is fixedly connected with a threaded block for connecting with a connecting rod.

[0010] Preferably, a thread groove for threaded connection of the stripping plate is provided at the top end of the connecting rod, and a through hole for the connecting rod to pass through is provided at the bottom end of the placement groove.

[0011] Preferably, the threads on the outer wall of the thread block and the threads on the inner wall of the thread groove are engaged with each other.

[0012] Preferably, the linkage assembly includes a lifting plate, a moving groove for moving the lifting plate is opened on the front of the lower mold, an insert block is fixedly connected to the top of the lifting plate, and a slot for inserting the insert block is opened at the bottom end of the connecting rod.

[0013] Preferably, a limiting groove is provided on the front side of the upper mold, and a clamping block is slidably inserted into the interior of the limiting groove. One end of the clamping block is fixedly connected to a vertical plate, and the bottom end of the vertical plate is fixedly connected to the top end of the lifting plate.

[0014] Preferably, the horizontal cross-sections of the limiting groove and the clamping block are both T-shaped.

[0015] The technical effects and advantages of this utility model are:

[0016] The utility model utilizes the design of the lower mold, the demoulding piece, the linkage assembly and the connecting rod. When the upper mold moves in the direction away from the lower mold, the clamping block slides inside the limiting groove until the bottom end of the clamping block contacts the bottom end of the limiting groove, thereby driving the clamping block and the upper mold to move synchronously. The clamping block drives the lifting plate to move synchronously through the vertical plate, and the lifting plate drives the stripping plate to move synchronously through the connecting rod, so that the stripping plate pushes the injection molded part inside the injection groove out of the injection groove, thereby eliminating the need for staff to lift the injection molded part, facilitating the removal of the injection molded part and saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall closed state of the mold of the utility model.

[0018] Figure 2 This is a schematic diagram of the overall open state of the mold of the utility model.

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the upper mold of the utility model.

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the lower mold of the utility model.

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the demoulding part and linkage assembly of the utility model.

[0022] Figure 6 This is a schematic diagram of the side cross-sectional structure of the demoulding component and linkage assembly of the present invention.

[0023] In the figure: 1. Upper mold; 2. Lower mold; 3. Demolding part; 31. Demolding plate; 32. Threaded block; 4. Linkage assembly; 41. Lifting plate; 42. Vertical plate; 43. Clamping block; 44. Insert block; 5. Connecting rod; 6. Injection groove; 7. Placement groove; 8. Penetration hole; 9. Moving groove; 10. Restriction groove. DETAILED DESCRIPTION

[0024] 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.

[0025] The utility model provides Figure 1-6 The mold for an injection molded part that is easy to demould includes an upper mold 1 and a lower mold 2. The top of the lower mold 2 is provided with an injection groove 6 for injection molding, and further includes:

[0026] The demoulding member 3 is used to push the injection molded part inside the injection molding groove 6. The demoulding member 3 is arranged inside the injection molding groove 6;

[0027] The linkage component 4 is used to drive the movement of the demoulding member 3, and the linkage component 4 is arranged at the bottom end of the demoulding member 3;

[0028] The connecting rod 5 is used to connect the demoulding component 3 and the linkage assembly 4. The connecting rod 5 is arranged between the demoulding component 3 and the linkage assembly 4.

[0029] Specifically, the demolding part 3 includes a demolding plate 31, a placement groove 7 for placing the demolding plate 31 is provided at the bottom end of the injection groove 6, a threaded block 32 for connecting to the connecting rod 5 is fixedly connected to the bottom end of the demolding plate 31, a threaded groove for threaded connection of the demolding plate 31 is provided at the top end of the connecting rod 5, a through hole 8 for inserting the connecting rod 5 is provided at the bottom end of the placement groove 7, and the threads on the outer wall of the threaded block 32 are engaged with the threads on the inner wall of the threaded groove.

[0030] Furthermore, the upper mold 1 and the lower mold 2 are existing metal injection molding molds. By closing the upper mold 1 and the lower mold 2, the injection molded part inside the injection groove 6 is gradually cooled and formed. The size of the placement groove 7 is adapted to the size of the stripper plate 31. The number of through holes 8 corresponds to the number of threaded blocks 32, and the number of threaded blocks 32 corresponds to the number of connecting rods 5. The diameter of the through hole 8 is 1.02 times the diameter of the connecting rod 5. By rotating the connecting rod 5, the threaded groove is threadedly engaged with the threaded block 32 to fix the connecting rod 5 to the stripper plate 31. Then the connecting rod 5 is inserted through the through hole 8 and connected to the insert block 44.

[0031] Specifically, the linkage assembly 4 includes a lifting plate 41, a moving groove 9 for moving the lifting plate 41 is provided on the front of the lower mold 2, the top of the lifting plate 41 is fixedly connected with an insert block 44, and the bottom end of the connecting rod 5 is provided with a slot for inserting the insert block 44, and a limiting groove 10 is provided on the front of the upper mold 1, and the internal sliding insertion of the limiting groove 10 is connected with a snap-in block 43, one end of the snap-in block 43 is fixedly connected with a vertical plate 42, and the bottom end of the vertical plate 42 is fixedly connected to the top of the lifting plate 41, and the horizontal cross-sections of the limiting groove 10 and the snap-in block 43 are both T-shaped.

[0032] Furthermore, the width of the movable groove 9 corresponds to the width of the lifting plate 41, the height of the movable groove 9 corresponds to the height of the connecting rod 5, the number of the plug blocks 44 corresponds to the number of the connecting rods 5, the part where the plug blocks 44 contact the lifting plate 41 is welded and fixed, the bottom end of the vertical plate 42 is welded and fixed to the part of the lifting plate 41 extending out of the movable groove 9, the vertical plate 42 is welded and fixed to the part where the clamping block 43 extends out of the limiting groove 10, the horizontal cross-sectional dimensions of the clamping block 43 and the limiting groove 10 are adapted, and the limiting groove 10 limits the clamping block 43 to only linear movement in the vertical direction, the inner wall of the slot of the connecting rod 5 is a rough surface, and the outer wall of the plug block 44 is a rough surface, and the plug block 44 is fixed by inserting the slot and being fixed by friction.

[0033] After the upper mold 1 and the lower mold 2 are closed, the injection molded part has cooled down and needs to be taken out. At this time, the upper mold 1 is controlled to move away from the lower mold 2, and the clamping block 43 moves in the limiting groove 10 until the bottom end of the clamping block 43 is in contact with the bottom end of the inner wall of the limiting groove 10. At this time, the upper mold 1 drives the clamping block 43 to move vertically synchronously, and the clamping block 43 drives the lifting plate 41 to move through the vertical plate 42. The lifting plate 41 will drive the connecting rod 5, and the connecting rod 5 drives the stripping plate 31 to move synchronously. The stripping plate 31 will move out of the placement groove 7, push the injection molded part inside the injection groove 6, and separate the injection molded part from the injection groove 6, so that there is no need to manually pry the injection molded part, which facilitates the demolding of the injection molded part and saves manpower.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, 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. A mold for injection molding that is easy to demould, comprising an upper mold (1) and a lower mold (2), wherein the top of the lower mold (2) is provided with an injection groove (6) for injection molding, characterized in that: Also includes: A demoulding member (3), the demoulding member (3) is used to push the injection molded part inside the injection molding groove (6), and the demoulding member (3) is arranged inside the injection molding groove (6); A linkage assembly (4), the linkage assembly (4) is used to drive the movement of the demoulding member (3), and the linkage assembly (4) is arranged at the bottom end of the demoulding member (3); A connecting rod (5) is used to connect the demoulding component (3) and the linkage component (4), and the connecting rod (5) is arranged between the demoulding component (3) and the linkage component (4).

2. The mold for injection molding that is easy to demould according to claim 1, characterized in that: The demoulding member (3) includes a demoulding plate (31), the bottom end of the injection molding groove (6) is provided with a placement groove (7) for placing the demoulding plate (31), and the bottom end of the demoulding plate (31) is fixedly connected to a threaded block (32) for connecting to the connecting rod (5).

3. The mold for injection molding that is easy to demould according to claim 2, characterized in that: The top end of the connecting rod (5) is provided with a threaded groove for threaded connection with the stripping plate (31), and the bottom end of the placement groove (7) is provided with a through hole (8) for the connecting rod (5) to penetrate.

4. The mold for injection molding that is easy to demould according to claim 3, characterized in that: The threads on the outer wall of the threaded block (32) are meshed with the threads on the inner wall of the threaded groove.

5. The mold for injection molding that is easy to demould according to claim 1, characterized in that: The linkage assembly (4) includes a lifting plate (41), a moving groove (9) for the lifting plate (41) to move is provided on the front of the lower mold (2), an insert block (44) is fixedly connected to the top end of the lifting plate (41), and a slot for inserting the insert block (44) is provided at the bottom end of the connecting rod (5).

6. The mold for injection molding that is easy to demould according to claim 5, characterized in that: A limiting groove (10) is provided on the front of the upper mold (1), and a clamping block (43) is slidably inserted into the interior of the limiting groove (10), one end of the clamping block (43) is fixedly connected to a vertical plate (42), and the bottom end of the vertical plate (42) is fixedly connected to the top end of the lifting plate (41).

7. The mold for injection molding that is easy to demould according to claim 6, characterized in that: The horizontal cross-sections of the limiting groove (10) and the clamping block (43) are both T-shaped.

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