Silica gel injection mold with automatic ejection structure

Abstract

The utility model discloses a silica gel injection mold with an automatic material ejection structure, which comprises a supporting piece, a concave mold and a convex mold, the supporting piece comprises a bracket, the concave mold is vertically fixed at one end of the bracket, a sliding frame is vertically fixed at the other end of the bracket, the convex mold is assembled on the sliding frame in a sliding manner, forming holes are formed in vertical end surfaces horizontally penetrating through two sides of the concave mold, and the convex mold is arranged in the forming holes. Two sliding groove strips are horizontally fixed to the vertical end face of the side, away from the male die, of the female die, a sliding plate is horizontally installed in the sliding groove strips of the female die in a sliding mode, a plurality of air outlet hole bases are horizontally installed on the sliding plate in a penetrating mode, an air inlet pipe is fixedly communicated with one end of each air outlet hole base, and an air pump is fixedly communicated with the air inlet pipe. According to the injection mold, the problems that a single ejection piece of an existing injection mold internally provided with a plurality of forming grooves can not discharge from the injection mold with the plurality of forming grooves, and the cost is high due to the fact that a plurality of ejection pieces are arranged are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a silicone injection mold with an automatic ejecting structure. Background Art

[0002] Molds are tools used to shape objects, forming blanks into parts of specific shapes and sizes under the action of external forces. They are widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression or injection molding of engineering plastics, rubber, ceramics, and other products. Molds are required when processing products using silicone rubber.

[0003] The existing announcement number is CN218315059U, and its name is a high-temperature resistant liquid silicone rubber mold, which includes a base, a bottom mold is fixedly installed on one side of the base, four positioning through holes are opened on one side of the bottom mold, and positioning rods are inserted into the inner walls of the four positioning through holes. The top ends of the four positioning rods are fixedly connected to a top mold, and the bottom side of the bottom mold is fixedly connected to four ejection springs. The ends of the four ejection springs away from the bottom mold are fixedly connected to an L-shaped movable frame, and the sides of the four L-shaped movable frames close to the ejection springs are fixedly connected to an extrusion rod and an ejector rod. The top ends of the four ejector rods are fixedly connected to a sealing top block, and a heat absorbing plate is fixedly connected to the bottom side of the bottom mold cavity. Top grooves are opened at the four corners of one side of the heat absorbing plate. During the processing, the sealing top block is located inside the top groove, and the ejection spring is in a stretched state. After the mold is opened, the sealing top block is lifted and the product is ejected under the action of the ejection spring, which can automatically perform the ejection work, making the material removal operation simpler, thereby improving the processing efficiency.

[0004] However, the above-mentioned injection mold utilizes the heat absorbing plate to push the heat absorbing plate to move in the injection mold under the support of the deformation force of the ejection spring, thereby pushing the molded silicone parts out. However, for an injection mold with multiple molding grooves inside, a single ejector cannot achieve ejection in an injection mold with multiple molding grooves, and the cost of setting up multiple ejectors is high. Utility Model Content

[0005] The purpose of the utility model is to provide a silicone injection mold with an automatic ejection structure, aiming to improve the above-mentioned problems.

[0006] The utility model is achieved in this way:

[0007] A silicone injection mold with an automatic ejection structure includes a support, a die and a punch. The support includes a bracket, a die is vertically fixed to one end of the bracket, and a slide is vertically fixed to the other end of the bracket. The punch is slidably assembled on the slide. Forming holes are provided horizontally through the vertical end faces on both sides of the die, and two slide bars are horizontally fixed on the vertical end face of the die away from the punch. A slide bar is horizontally slidably installed in the slide bar of the die, and multiple air outlet seats are horizontally installed on the slide bar. One end of the multiple air outlet seats is connected and fixed with an air inlet pipe, and the air inlet pipe is connected and fixed with an air pump.

[0008] Furthermore, a plurality of protruding columns are horizontally arranged on one end surface of the male die close to the female die, and the plurality of protruding columns are plugged into the forming holes on the female die.

[0009] Furthermore, a plurality of sliding rods are horizontally fixed on the other side end surface of the punch, and the sliding rods are horizontally slid and inserted into the slide.

[0010] Furthermore, a hydraulic rod is horizontally fixed on the slide, and an output end of the hydraulic rod is fixed on the punch.

[0011] Furthermore, a plurality of studs are vertically arranged on the top surface of the bracket, and the bottom ends of the plurality of studs are fixed on the top surface of the bracket.

[0012] Furthermore, an electric telescopic rod is horizontally fixed to one side of the die, and the output end of the electric telescopic rod is fixed to the end of the slide.

[0013] The present invention has the following advantages: before the convex mold and the concave mold are closed by the sliding frame at one end of the bracket, the electric telescopic rod is started to push the slide plate to slide in the slide groove bar of the concave mold, so that the air outlet hole seat on the slide plate is staggered with the forming hole on the concave mold, the slide plate blocks the bottom end of the forming hole on the concave mold, and then the silicone liquid is poured into the convex mold and the concave mold. After cooling, the convex mold and the concave mold which are slidably mounted on the slide plate at one end of the bracket are driven to open the mold, and then the electric telescopic rod is started to push the slide plate to slide in the slide groove bar of the concave mold, so that the air outlet hole seat on the slide plate is aligned with the forming hole on the concave mold, and then the air pump on the air inlet pipe is started to drive air into the air outlet hole seat, and the air is ejected into the forming hole of the groove through the air outlet hole seat, and the air discharges the formed silicone part from the forming hole on the concave mold, thereby completing the ejection of the formed silicone part from the forming hole on the concave mold by air, and ejecting the formed silicone part from the forming hole on the concave mold by the air outlet device, which reduces cost and improves discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

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

[0016] Figure 2 It is a schematic diagram of the exploded structure of the utility model;

[0017] Figure 3 This is a schematic structural diagram of the female mold in the decomposed state according to an embodiment of the present invention;

[0018] Figure 4 It is a structural schematic diagram of the punch in the decomposed state in the embodiment of the present utility model.

[0019] In the figure: 1. Support member; 11. Bracket; 12. Stud; 13. Slide; 14. Hydraulic rod; 2. Die; 21. Forming hole; 22. Slide bar; 23. Slide plate; 24. Air outlet seat; 25. Air inlet pipe; 26. Air pump; 27. Electric telescopic rod; 3. Punch; 31. Boss; 32. Slide rod. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown, a silicone injection mold with an automatic ejection structure includes a support member 1, a die 2 and a punch 3. The support member 1 includes a bracket 11. The die 2 is vertically fixed at one end of the bracket 11, and a slide 13 is vertically fixed at the other end of the bracket 11. The punch 3 is slidably assembled on the slide 13. The die 2 is horizontally penetrated through both vertical end surfaces and is provided with forming holes 21. Two slide bars 22 are horizontally fixed on the vertical end surface of the die 2 away from the punch 3. The slide bars 22 of the die 2 are fixed horizontally. A slide plate 23 is installed for horizontal sliding, and a plurality of air outlet seats 24 are installed horizontally on the slide plate 23. One end of the plurality of air outlet seats 24 is connected and fixed with an air inlet pipe 25, and an air pump 26 is connected and fixed on the air inlet pipe 25. An electric telescopic rod 27 is fixed horizontally on one side of the die 2, and the output end of the electric telescopic rod 27 is fixed to the end of the slide plate 23. When in use, the convex die 3 and the concave die 2 are driven to close the die by sliding on the slide 13 at one end of the bracket 11. The movable slide 23 slides in the slide bar 22 of the die 2, so that the air outlet seat 24 on the slide 23 is staggered with the forming hole 21 on the die 2, and the slide 23 blocks the bottom of the forming hole 21 on the die 2, and then the silicone liquid is poured into the convex mold 3 and the die 2. After cooling, the convex mold 3 and the die 2 that are slidably mounted on the slide 13 at one end of the bracket 11 are driven to open the mold, and then the electric telescopic rod 27 is started to push the slide 23 to slide in the slide bar 22 of the die 2, so that the air outlet seat 24 on the slide 23 is staggered with the forming hole 21 on the die 2. 4 is aligned with the forming hole 21 on the die 2, and then the air pump 26 on the air inlet pipe 25 is started to drive air into the air outlet seat 24. The air is ejected into the forming hole 21 of the groove 2 through the air outlet seat 24, and the air discharges the formed silicone piece from the forming hole 21 on the die 2, thereby completing the process of ejecting the formed silicone piece from the forming hole 21 on the die 2 by using the air. The air outlet device ejects the formed silicone piece from the forming hole 21 on the die 2, thereby reducing costs and improving discharge efficiency.

[0022] See also Figure 4 The end face of the punch 3 near the die 2 is provided with a plurality of protrusions 31 arranged horizontally, and the protrusions 31 are plugged into the forming holes 21 of the die 2. The other end face of the punch 3 is fixed with a plurality of slide bars 32 horizontally, and the slide bars 32 slide horizontally and are inserted into the slide 13. The slide 13 is fixed with a hydraulic rod 14 horizontally, and the output end of the hydraulic rod 14 is fixed to the punch 3. During use, the hydraulic rod 14 is activated to extend and push the slide bars 32 on the punch 3 to slide parallel to the slide 13, so as to facilitate the closing of the punch 3 and the die 2.

[0023] See also Figure 4 A plurality of studs 12 are vertically arranged on the top surface of the bracket 11, and the bottom ends of the plurality of studs 12 are fixed on the top surface of the bracket 11. During use, the plurality of studs 12 on the bracket 11 cooperate to fix the assembled bracket 11.

[0024] The working principle is as follows: before the convex mold 3 slidably mounted on the slide 13 at one end of the bracket 11 is used to close the die 2, the electric telescopic rod 27 is started to push the slide plate 23 to slide in the slide groove bar 22 of the die 2, so that the air outlet seat 24 on the slide plate 23 is staggered with the forming hole 21 on the die 2, and the slide plate 23 blocks the bottom end of the forming hole 21 on the die 2, and then the silicone liquid is poured into the convex mold 3 and the die 2. After cooling, the convex mold 3 slidably mounted on the slide 13 at one end of the bracket 11 is driven to open the die, and then the electric telescopic rod 27 is started to push the slide plate 23 to slide in the slide groove bar 22 of the die 2, so that the air outlet seat 24 on the slide plate 23 is aligned with the forming hole 21 on the die 2, and then the air pump 26 on the air inlet pipe 25 is started to drive air into the air outlet seat 24. The air is ejected into the forming hole 21 of the groove 2 through the air outlet seat 24, and the air discharges the formed silicone parts from the forming hole 21 on the die 2.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A silicone injection mold with an automatic ejection structure, characterized in that: The invention comprises a support member (1), a die (2) and a punch (3), wherein the support member (1) comprises a bracket (11), one end of the bracket (11) is vertically fixed with the die (2), and the other end of the bracket (11) is vertically fixed with a slide (13), the punch (3) is slidably assembled on the slide (13), forming holes (21) are provided on both vertical end faces of the die (2) running horizontally through the two sides, and two slide bars (22) are horizontally fixed on the vertical end face of the die (2) away from the punch (3), a slide plate (23) is horizontally slidably installed in the slide bar (22) of the die (2), and a plurality of air outlet seats (24) are horizontally passed through on the slide plate (23), one end of the plurality of air outlet seats (24) is connected and fixed with an air inlet pipe (25), and an air pump (26) is connected and fixed on the air inlet pipe (25).

2. The silicone injection mold with an automatic ejection structure according to claim 1, characterized in that: A plurality of convex columns (31) are horizontally arranged on an end surface of one side of the male die (3) close to the female die (2), and the plurality of convex columns (31) are plugged into the forming holes (21) on the female die (2).

3. The silicone injection mold with an automatic ejection structure according to claim 2, characterized in that: A plurality of slide bars (32) are horizontally fixed on the other side end surface of the punch (3), and the slide bars (32) are horizontally slidably inserted into the slide frame (13).

4. The silicone injection mold with an automatic ejection structure according to claim 3, characterized in that: A hydraulic rod (14) is horizontally fixed on the slide (13), and the output end of the hydraulic rod (14) is fixed on the punch (3).

5. The silicone injection mold with an automatic ejection structure according to claim 4, characterized in that: A plurality of studs (12) are vertically arranged on the top surface of the bracket (11), and the bottom ends of the plurality of studs (12) are fixed on the top surface of the bracket (11).

6. The silicone injection mold with an automatic ejection structure according to claim 5, characterized in that: An electric telescopic rod (27) is horizontally fixed on one side of the die (2), and the output end of the electric telescopic rod (27) is fixed to the end of the slide plate (23).

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