An injection mold with screw tapping

Abstract

The utility model relates to the technical field of injection molds, specifically an injection mold with screw tapping, including a lower mold and an upper mold, wherein the sides of the lower mold and the upper mold close to each other are each provided with a plurality of tapping grooves, and the surfaces of the lower mold and the upper mold are each provided with a kneading structure, wherein the kneading structure comprises a rectangular plate slidably connected to the inside of the lower mold and the upper mold respectively, wherein the inside of the rectangular plate is slidably connected with a sliding pin, and the other end of the sliding pin is fixedly installed with a limit frame, and the lower surface of the limit frame is glued with two elastic pads, and the inside of the rectangular plate is threadedly connected with a screw rod, and the lower end of the screw rod is fixedly connected with a rotating block, and the screw rod and the limit frame are internally rotatably connected. The utility model facilitates the kneading work of the product inside the tapping groove by setting the kneading structure, thereby realizing the loosening work of the product tightly stuck inside the tapping groove, and improving the demoulding efficiency of the product inside the tapping groove to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold with screw tapping. Background Art

[0002] An injection mold is a mold used for plastic injection molding, usually composed of an upper mold, a lower mold and a mold core. The design and manufacture of injection molds play a vital role in the stability of the injection molding process and the quality of the product. Injection molds are usually made of high-strength alloy steel or other engineering plastics with good wear resistance and corrosion resistance. The surface of the mold is usually finely polished to ensure the finish and precision of the final product.

[0003] The existing related technologies often have the following defects: in the actual use of the injection mold with a screw tapping groove, after the product is injection molded, during the process of demolding the product inside the tapping groove after opening the upper mold and the lower mold, the product inside the tapping groove is often stuck tightly, and violent disassembly can easily lead to broken teeth of the product inside the tapping groove.

[0004] Therefore, the utility model provides an injection mold with screw tapping. Utility Model Content

[0005] The utility model aims to solve the disadvantage in the prior art that it is inconvenient to demould the product inside the tapping groove, and proposes an injection mold with screw tapping.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an injection mold with screw tapping, comprising a lower mold and an upper mold, wherein a plurality of tapping grooves are provided on the side of the lower mold and the upper mold close to each other, and a kneading structure is provided on the surface of the lower mold and the upper mold, wherein the kneading structure comprises a rectangular plate respectively slidably connected to the inside of the lower mold and the upper mold, wherein a sliding pin is slidably connected to the inside of the rectangular plate, and a limit frame is fixedly installed on the other end of the sliding pin, and two elastic pads are glued to the lower surface of the limit frame.

[0007] The effect achieved by the above components is: the limit frame will drive the elastic pad to squeeze the upper position of the product. At this time, the rectangular plate can be driven reciprocatingly, and the rectangular plate will drive the elastic pad to knead the product, so as to realize the rolling of the product on the inner side of the tapping groove, and then realize the loosening of the product on the inner side of the tapping groove, avoiding the situation that the product is tightly stuck on the inner side of the tapping groove and is inconvenient to demold.

[0008] Preferably, the inner thread of the rectangular plate is connected with a screw rod, the lower end of the screw rod is fixedly connected with a rotating block, and the screw rod is rotatably connected to the inside of the limit frame.

[0009] The effect achieved by the above components is: when the rotating block is rotated at this time, the rotating block will drive the screw rod to rotate, thereby realizing the driving work of the limit frame.

[0010] Preferably, the side walls of the lower mold and the upper mold are fixedly connected with positioning blocks, and the internal threads of the positioning blocks are connected with screws.

[0011] The effect achieved by the above components is that the position of the rectangular plate after pulling can be fixed by rotating the screw rod inside the positioning block.

[0012] Preferably, a plurality of strip-shaped grooves are evenly formed on the surface of the elastic pad.

[0013] The effect achieved by the above components is that by providing the strip grooves on the elastic pad, the tapping on the product can be stuck inside the strip grooves for kneading, thereby further improving the kneading effect on the product.

[0014] Preferably, a coating structure is provided between the lower surface and the upper mold, and the coating structure comprises a sponge tube matched to the size of the tapping groove.

[0015] The effect achieved by the above components is: inserting the sponge tube into the inner side of the tapping groove on the lower mold or the upper mold can realize the comprehensive application of the release agent on the inner side of the tapping groove.

[0016] Preferably, a fixing tube is installed inside the sponge tube, and a plurality of through holes are evenly opened on the surface of the fixing tube.

[0017] The effect achieved by the above components is that the release agent will wet the sponge tube along the through holes on the fixed tube.

[0018] Preferably, the upper end of the fixing tube is connected to a silicone bottle, and the upper end of the silicone bottle is threadedly connected to a bolt.

[0019] The effect achieved by the above components is: by rotating the bolt into the upper port of the silicone bottle, the upper port position of the silicone bottle can be sealed.

[0020] In summary:

[0021] 1. In the utility model, by providing a kneading structure, the kneading work of the product on the inner side of the tapping groove is facilitated, thereby achieving the loosening work of the product tightly stuck on the inner side of the tapping groove, and improving the demoulding efficiency of the product on the inner side of the tapping groove to a certain extent.

[0022] 2. In the present invention, by providing a coating structure, the flexible application of the demoulding agent on the inner side of the tapping groove is facilitated, and the demoulding efficiency of the product on the inner side of the tapping groove in the later stage is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a structural schematic diagram of the kneading structure in the utility model;

[0025] Figure 3 It is a schematic diagram of the disassembled structure of the coating structure in the utility model;

[0026] Figure 4 For the utility model Figure 2 Enlarged view of point A.

[0027] Legend: 1. Lower mold; 2. Upper mold; 3. Tapping groove; 4. Kneading structure; 41. Limit frame; 42. Screw rod; 43. Elastic pad; 44. Rectangular plate; 45. Sliding pin; 46. Positioning block; 47. Screw rod; 48. Rotating block; 49. Strip groove; 5. Coating structure; 51. Sponge tube; 52. Silicone bottle; 53. Bolt; 54. Fixing tube; 55. Through hole. DETAILED DESCRIPTION

[0028] Reference Figure 1 As shown, the utility model provides a technical solution: an injection mold with screw tapping, comprising a lower mold 1 and an upper mold 2, a plurality of tapping grooves 3 are provided on the side of the lower mold 1 and the upper mold 2 close to each other, a kneading structure 4 is provided on the surface of the lower mold 1 and the upper mold 2, and a coating structure 5 is provided between the lower surface and the upper mold 2.

[0029] The specific configuration and function of the kneading structure 4 and the coating structure 5 will be described in detail below.

[0030] Reference Figure 1-Figure 2 and Figure 4As shown, in this embodiment: the kneading structure 4 includes a rectangular plate 44 that is slidably connected to the inside of the lower mold 1 and the upper mold 2, and a sliding pin 45 is slidably connected to the inside of the rectangular plate 44. The other end of the sliding pin 45 is fixedly installed with a limit frame 41, and the lower surface of the limit frame 41 is glued with two elastic pads 43. The limit frame 41 will drive the elastic pad 43 to squeeze the upper position of the product. At this time, the rectangular plate 44 can be reciprocated and driven. The rectangular plate 44 will drive the elastic pad 43 to knead the product, which can realize the rolling work of the product inside the tapping groove 3, and then the product can be loosened inside the tapping groove 3, avoiding the situation that the product is tightly stuck inside the tapping groove 3 and is inconvenient to demould. The inner thread of the rectangular plate 44 is connected with a screw rod 42, and the lower end of the screw rod 42 is fixedly connected with a rotating block 48, and the screw rod 42 is connected to the inner rotation of the limit frame 41. At this time, the rotating block 48 is rotated, and the rotating block 48 will drive the screw rod 42 to rotate, so that the driving work of the limit frame 41 can be realized. The side walls of the lower mold 1 and the upper mold 2 are fixedly connected with a positioning block 46, and the internal thread of the positioning block 46 is connected with a screw 47. By rotating the screw 47 inside the positioning block 46, the position of the rectangular plate 44 after the pumping can be fixed. The surface of the elastic pad 43 is evenly provided with a plurality of strip grooves 49. By providing the strip grooves 49 provided on the elastic pad 43, the tapping on the product can be stuck inside the strip grooves 49 for kneading, further improving the kneading effect on the product.

[0031] Reference Figure 1 and Figure 3 As shown, specifically, the coating structure 5 includes a sponge tube 51 that is adapted to the size of the tapping groove 3. The sponge tube 51 is inserted into the inner side of the tapping groove 3 on the lower mold 1 or the upper mold 2, so that the release agent on the inner side of the tapping groove 3 can be fully applied. A fixed tube 54 is installed inside the sponge tube 51, and a plurality of through holes 55 are evenly opened on the surface of the fixed tube 54. The release agent will wet the sponge tube 51 along the through holes 55 on the fixed tube 54. The upper end of the fixed tube 54 is connected to a silicone bottle 52, and the upper port of the silicone bottle 52 is threadedly connected with a bolt 53. By rotating the bolt 53 into the upper port of the silicone bottle 52, the upper port position of the silicone bottle 52 can be sealed.

[0032] Working principle: when it is necessary to close the mold between the upper mold 2 and the lower mold 1, the rectangular plates 44 inside the upper mold 2 and the lower mold 1 can be pulled, and after the limit frame 41 is pulled out from the upper mold 2 and the lower mold 1 correspondingly below and below, the screw 47 inside the positioning block 46 can be rotated to fix the position of the rectangular plate 44 after pulling, which can facilitate the normal closing of the mold between the upper mold 2 and the lower mold 1. After the product is injection molded, after the mold is opened between the upper mold 2 and the lower mold 1, there is a phenomenon of product adhesion on the surfaces of the upper mold 2 and the lower mold 1. At this time, first slide the rectangular plate 44 inside the upper mold 2 or the lower mold 1 to move the limit frame 41 to the position above the product. At this time, rotate the rotating block 48, and the rotating block 48 will drive the screw 42 to rotate, so that the limit The frame 41 is driven to work, and the limit frame 41 will drive the elastic pad 43 to squeeze the upper position of the product. At this time, the rectangular plate 44 can be driven reciprocatingly, and the rectangular plate 44 will drive the elastic pad 43 to knead the product, so as to realize the rolling of the product inside the tapping groove 3, and then realize the loosening of the product inside the tapping groove 3, avoiding the situation that the product is tightly stuck on the inside of the tapping groove 3 and is inconvenient to demould. By setting the strip groove 49 opened on the elastic pad 43, the tapping on the product can be stuck on the inside of the strip groove 49 for kneading, which further improves the kneading effect of the product. By setting the kneading structure 4, the kneading work of the product inside the tapping groove 3 is facilitated, and then the loosening of the product tightly stuck inside the tapping groove 3 is realized, and the demoulding efficiency of the product inside the tapping groove 3 is improved to a certain extent.

[0033] Pour a certain amount of mold release agent into the opening of the silicone bottle 52, and rotate the bolt 53 into the upper port of the silicone bottle 52 to seal the upper port of the silicone bottle 52. The mold release agent will wet the sponge tube 51 along the through hole 55 on the fixed tube 54. At this time, insert the sponge tube 51 into the inner side of the tapping groove 3 on the lower mold 1 or the upper mold 2, so as to achieve comprehensive application of the mold release agent on the inner side of the tapping groove 3. By setting the coating structure 5, the flexible application of the mold release agent on the inner side of the tapping groove 3 is facilitated, and the demoulding efficiency of the product on the inner side of the tapping groove 3 in the later stage is further improved.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

Claims

1. An injection mold with screw tapping, comprising a lower mold (1) and an upper mold (2), characterized in that: A plurality of tapping grooves (3) are provided on the sides of the lower mold (1) and the upper mold (2) that are close to each other, and a kneading structure (4) is provided on the surfaces of the lower mold (1) and the upper mold (2), and the kneading structure (4) comprises a rectangular plate (44) slidably connected to the inside of the lower mold (1) and the upper mold (2), respectively, and a sliding pin (45) is slidably connected to the inside of the rectangular plate (44), and the other end of the sliding pin (45) is fixedly installed with a limit frame (41), and the lower surface of the limit frame (41) is glued with two elastic pads (43).

2. The injection mold with screw tapping according to claim 1, characterized in that: The inner thread of the rectangular plate (44) is connected to a screw rod (42), the lower end of the screw rod (42) is fixedly connected to a rotating block (48), and the screw rod (42) is rotatably connected to the inside of the limiting frame (41).

3. The injection mold with screw tapping according to claim 1, characterized in that: The side walls of the lower mold (1) and the upper mold (2) are both fixedly connected with positioning blocks (46), and the internal threads of the positioning blocks (46) are connected with screw rods (47).

4. The injection mold with screw tapping according to claim 1, characterized in that: A plurality of strip-shaped grooves (49) are evenly arranged on the surface of the elastic pad (43).

5. The injection mold with screw tapping according to claim 1, characterized in that: A coating structure (5) is provided between the lower surface and the upper mold (2), and the coating structure (5) comprises a sponge tube (51) that is adapted to the size of the tapping groove (3).

6. The injection mold with screw tapping according to claim 5, characterized in that: A fixing tube (54) is installed inside the sponge tube (51), and a plurality of through holes (55) are evenly formed on the surface of the fixing tube (54).

7. The injection mold with screw tapping according to claim 6, characterized in that: The upper end of the fixing tube (54) is connected to a silica gel bottle (52), and the upper end of the silica gel bottle (52) is threadedly connected to a bolt (53).

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