Efficient glue injection mold

Abstract

The utility model provides an efficient glue injection mould, which comprises a fixed plate, an upper mould plate and a middle mould plate, the fixed plate is provided with a sprue, the upper mould plate is provided with a first upper cavity, the middle mould plate is provided with a first lower cavity matched with the first upper cavity, the sprue is communicated with the first upper cavity through a first runner, and the first runner is communicated with the first lower cavity through a second runner. The mold further comprises a lower mold plate, a second upper mold cavity is formed in the side, back to the first lower mold cavity, of the middle mold plate, a second lower mold cavity matched with the second upper mold cavity is formed in the lower mold plate, the pouring gate is communicated with the second mold cavity through a second runner, and the fixing plate, the upper mold plate, the middle mold plate and the lower mold plate are sequentially arranged. And the purpose of improving the production efficiency is achieved.

Description

Technical Field

[0001] The utility model relates to a glue injection mold, in particular to a high-efficiency glue injection mold. Background Art

[0002] At present, a Chinese patent with authorization announcement number CN202357375U discloses a plastic injection mold, including a main channel and multiple branch channels connected to the main injection channel, and the main channel is connected to the injection port. The main channel is L-shaped. Multiple mold cavities are respectively connected to multiple branch channels, and the mold cavities used to form smaller workpieces are connected to the branch channels far away from the injection port. The mold cavities are distributed along the L-shaped main channel, and the layout structure is compact, which reduces the flow of glue liquid, improves the hydraulic pressure of the glue liquid flowing in the main channel, and prevents uneven glue flow, glue shortage and other phenomena.

[0003] Because this kind of mold can only distribute the products on the same level, that is, only one product can be molded on one level, so the production efficiency is low. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a high-efficiency glue injection mold, which can improve the production efficiency by setting a multi-layer cavity.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a high-efficiency injection mold, including a fixed plate, an upper template, and a middle template, the fixed plate is provided with a gate, the upper template is provided with a first upper cavity, the middle template is provided with a first lower cavity for cooperating with the first upper cavity, the gate is connected with the first upper cavity through a first runner, and also includes a lower template, the middle template is provided with a second upper cavity on the side facing away from the first lower cavity, the lower template is provided with a second lower cavity cooperating with the second upper cavity, the gate is connected with the second cavity through a second runner, and the fixed plate, upper template, middle template, and lower template are arranged in sequence.

[0006] To implement the above technical solution, glue is injected into the first runner and the second runner through the gate, and the glue enters between the first upper cavity and the first lower cavity along the first runner to obtain the first product; the glue enters between the second upper cavity and the second lower cavity through the second runner to obtain the second product, so that two products can be obtained at one time when the mold is opened, and because the fixed plate, the upper template, the middle template, and the lower template are arranged in sequence, the first product and the second product are arranged along the height position of the mold, which has a smaller space occupation volume than the traditional side-by-side placement and is convenient for installation and production.

[0007] As a preferred solution of the utility model, the fixed plate is fixedly connected to the first support, the first support is provided with a first connecting hole connected to the first flow channel, the first support is slidably connected to the first valve needle, the first valve needle moves along its own length direction to block or open the first connecting hole, and the fixed plate is provided with a first cylinder for driving the first valve needle to move.

[0008] To implement the above technical solution, the glue enters the first connecting hole through the first flow channel, and then enters between the first upper cavity and the first lower cavity through the first connecting hole. By starting the first cylinder, the first valve needle is moved along its own length direction, so that the end of the first valve needle can block the first connecting hole to block the flow of glue, thereby achieving the purpose of saving production costs; when the first cylinder is started, the first valve needle moves away from the first upper cavity, so that the glue can be re-injected into between the first upper cavity and the first lower cavity.

[0009] As a preferred solution of the utility model, the first cylinder includes a first sliding seat, a first sealing ring, a first sliding hole, a first fixing hole, a first boss, and a first air hole. The first sliding hole is opened on the fixing plate, the first sliding seat is slidably connected to the first mounting hole, the first sealing ring is sleeved on the outer wall of the first sliding seat and abuts against the inner wall of the first sliding hole, the first fixing hole is opened on the first sliding seat, the first boss is fixed on the first valve needle and slidably connected to the first fixing hole, and the two first air holes correspond to the two ends of the first sliding seat respectively and are both connected to the first sliding hole.

[0010] To implement the above technical solution, gas is injected into the first air hole to move the first slide away from the first upper cavity, and the pulling force of the first boss causes the first valve needle to move synchronously with the first slide, so that the glue can be injected into the space between the first upper cavity and the first lower cavity; gas is injected into the other first air hole to move the first slide toward the first upper cavity, and at the same time, the first boss is moved to the bottom of the first fixing hole through the action of air pressure, and the first valve needle moves synchronously with the first boss and blocks the first connecting hole.

[0011] As a preferred solution of the utility model, the fixed plate is provided with a first liquid inlet hole, the upper template is provided with a second liquid inlet hole connected with the first liquid inlet hole, and the first support is located inside the second liquid inlet hole.

[0012] To implement the above technical solution, the heat medium is injected into the first liquid inlet hole, and then enters the second liquid inlet hole along the first liquid inlet hole, and the glue is heated or kept warm by heat transfer, so that the glue maintains good activity.

[0013] As a preferred solution of the utility model, the fixed plate is fixedly connected to a second support, a second connecting hole connected to a second flow channel is formed on the second support, a second valve needle is slidably connected to the second support, and the second valve needle moves along its own length direction to block or open the second connecting hole, and a second cylinder for driving the second valve needle to move is provided on the fixed plate.

[0014] To implement the above technical solution, the glue enters the second connecting hole through the second flow channel, and then enters between the second upper cavity and the second lower cavity through the second connecting hole. By starting the second cylinder, the second valve needle is moved along its own length direction, so that the end of the second valve needle can block the second connecting hole to block the flow of glue, thereby achieving the purpose of saving production costs. When the second cylinder is started, the second valve needle moves away from the second upper cavity, so that the glue can be re-injected into the space between the second upper cavity and the second lower cavity.

[0015] As a preferred solution of the utility model, the second cylinder includes a second slide seat, a second sealing ring, a second slide hole, a second fixing hole, a second boss, and a second air hole. The second slide hole is opened on the fixing plate, the second slide seat is slidably connected to the second mounting hole, the second sealing ring is sleeved on the outer wall of the second slide seat and abuts against the inner wall of the second slide hole, the second fixing hole is opened on the second slide seat, the second boss is fixed on the second valve needle and slidably connected to the second fixing hole, and the two second air holes correspond to the two ends of the second slide seat respectively and are both connected to the second slide hole.

[0016] To implement the above technical solution, gas is injected into the second air hole to move the second slide away from the second upper cavity, and the second valve needle is moved synchronously with the second slide through the pulling force of the second boss, so that the glue can be injected into the space between the second upper cavity and the second lower cavity; gas is injected into another second air hole to move the second slide toward the second upper cavity, and at the same time, the second boss is moved to the bottom of the second fixing hole through the action of air pressure, and the second valve needle is moved synchronously with the second boss and blocks the second connecting hole.

[0017] As a preferred solution of the utility model, a third liquid inlet hole is provided on the fixed plate, a fourth liquid inlet hole connected to the third liquid inlet hole is provided on the upper template, a fifth liquid inlet hole connected to the fourth liquid inlet hole is provided on the middle template, and the second support passes through the fourth liquid inlet hole and is located inside the fifth liquid inlet hole.

[0018] To implement the above technical solution, the heat medium enters the fourth liquid inlet hole from the third liquid inlet hole, and then enters the fifth liquid inlet hole from the fourth liquid inlet hole. The glue is heated or kept warm through heat exchange, so that the glue maintains good activity.

[0019] As a preferred solution of the utility model, placement holes are provided on the upper template and the middle template.

[0020] The above technical solution is implemented to facilitate installation of the upper template and the middle template on the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 A cross-sectional schematic diagram showing the utility model;

[0023] Figure 3 A schematic diagram showing the position of the second air hole;

[0024] Figure 4 Schematic diagram showing the position of the first air hole

[0025] Figure 5 A schematic diagram showing the three-dimensional structure of the first valve needle;

[0026] Figure 6 A schematic diagram showing the three-dimensional structure of the second valve needle;

[0027] Figure 7 A schematic diagram showing the connection structure between the first sliding seat and the first sealing ring;

[0028] Figure 8 It is a schematic diagram of the connection structure between the second sliding seat and the second sealing ring.

[0029] Figure numerals: 11, fixed plate; 12, upper template; 13, middle template; 14, lower template; 21, gate; 22, first upper cavity; 23, first lower cavity; 3, first support; 31, first branch pipe; 32, first support sleeve; 33, first connecting hole; 34, first valve needle; 35, first flow channel; 41, first liquid inlet hole; 42, second liquid inlet hole; 5, first cylinder; 51, first slide seat; 52, first sealing ring; 53, first slide hole; 54, first fixing hole; 55, first A boss; 56, a first air hole; 61, a second upper cavity; 62, a second lower cavity; 63, a second flow channel; 7, a second support; 71, a second branch pipe; 72, a second support sleeve; 73, a second connecting hole; 74, a second valve needle; 8, a second cylinder; 81, a second slide seat; 82, a second sealing ring; 83, a second slide hole; 84, a second fixing hole; 85, a second boss; 86, a second air hole; 91, a third liquid inlet hole; 92, a fourth liquid inlet hole; 93, a fifth liquid inlet hole; 94, a placement hole. DETAILED DESCRIPTION

[0030] The specific implementation modes of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0031] A high-efficiency glue injection mold comprises a fixed plate 11, an upper mold plate 12, and a middle mold plate 13. A gate 21 is provided on the fixed plate 11, and the gate 21 is located at the center of the fixed plate 11.

[0032] The upper mold plate 12 is provided with a plurality of first upper mold cavities 22. A first lower mold cavity 23 for cooperating with the first upper mold cavity 22 is provided on the side of the middle mold plate 13 facing the upper mold plate 12. The gate 21 is connected to the first upper mold cavity 22 through a first runner 35.

[0033] A first support 3 having a T-shaped cross section is fixedly connected to the fixing plate 11. The first support 3 includes a first branch pipe 31 and a first support sleeve 32, wherein the first support sleeve 32 is fixed to the fixing plate 11, and the first branch pipe 31 is fixed to the center of the first support 3. The center of the first branch pipe 31 has a first connecting hole 33 connected to the first flow channel 35. A first valve needle 34 is slidably connected in the first branch pipe 31, and the first valve needle 34 moves along its length direction to block or open the first connecting hole 33, and the end of the first connecting hole 33 has a tapered surface.

[0034] A first liquid inlet hole 41 is formed on the fixed plate 11 , a second liquid inlet hole 42 communicating with the first liquid inlet hole 41 is formed on the upper template 12 , and the first support 3 is located inside the second liquid inlet hole 42 .

[0035] The first cylinder 5 for driving the first valve needle 34 to move is arranged on the fixing plate 11. The first cylinder 5 comprises a first sliding seat 51, a first sealing ring 52, a first sliding hole 53, a first fixing hole 54, a first boss 55, and a first air hole 56. The first sliding hole 53 is opened on the fixing plate 11, and the first sliding seat 51 is slidably connected to the first mounting hole. The first sealing ring 52 is sleeved on the outer wall of the first sliding seat 51 and contacts the inner wall of the first sliding hole 53.

[0036] The first fixing hole 54 is arranged in a T-shape and is opened on the first slide seat 51, and the first fixing hole 54 is arranged coaxially with the first slide seat 51. The first boss 55 is fixed to the end of the first valve needle 34 and is slidably connected to the first fixing hole 54. Two first air holes 56 are opened on the fixing plate 11, and the two first air holes 56 correspond to the two ends of the first slide seat 51 respectively and are communicated with the first slide hole 53.

[0037] Start the air pump to ventilate the first air hole 56 close to the upper mold plate 12, so that the first slide 51 moves away from the first upper cavity 22. Through the pulling force of the first boss 55, the first valve needle 34 moves synchronously with the first slide 51, and the end of the first valve needle 34 is separated from the first connecting hole 33, so that the glue can be injected between the first upper cavity 22 and the first lower cavity 23.

[0038] Gas is injected into the other first air hole 56 to move the first slide seat 51 toward the first upper cavity 22. At the same time, the first boss 55 is moved to the bottom of the first fixing hole 54 by the action of air pressure. The first valve needle 34 moves synchronously with the first boss 55 and blocks the first connecting hole 33. The glue cannot be injected between the first upper cavity 22 and the first lower cavity 23.

[0039] A second upper cavity 61 is provided on the side of the middle template 13 facing away from the first lower cavity 23, and a second lower cavity 62 cooperating with the second upper cavity 61 is provided on the side of the lower template 14 facing the middle template 13. The gate 21 is connected to the second cavity through the second runner 63. The fixing plate 11, the upper template 12, the middle template 13, and the lower template 14 are arranged in sequence.

[0040] The second support 7 is fixedly connected to the fixing plate 11, and the second support 7 is located between the two first supports 3. The second support 7 includes a second branch pipe 71 and a second support sleeve 72. The second support sleeve 72 is fixed to the fixing plate 11, and the second branch pipe 71 is fixed in the second support sleeve 72 and is coaxially arranged.

[0041] The center of the second branch pipe 71 has a second connecting hole 73 connected to the second flow channel 63. A second valve needle 74 is slidably connected to the second support 7, and the second valve needle 74 moves along its length direction to block or open the second connecting hole 73. The fixing plate 11 is provided with a second cylinder 8 for driving the second valve needle 74 to move.

[0042] The second cylinder 8 includes a second slide seat 81, a second sealing ring 82, a second sliding hole 83, a second fixing hole 84, a second boss 85, and a second air hole 86. The second sliding hole 83 is formed on the fixing plate 11 and is located between the two first sliding holes 53. The second slide seat 81 is slidably connected to the second mounting hole. The second sealing ring 82 is sleeved on the outer wall of the second slide seat 81 and contacts the inner wall of the second sliding hole 83.

[0043] The second fixing hole 84 is formed on the second slide seat 81 , and the second fixing hole 84 is coaxially arranged with the second slide seat 81 . The second boss 85 is fixed to the end of the second valve needle 74 and is slidably connected to the second fixing hole 84 .

[0044] The two second air holes 86 are both formed on the fixing plate 11 and correspond to two ends of the second sliding seat 81 , respectively. The two second air holes 86 are both communicated with the second sliding hole 83 .

[0045] Start the air pump to ventilate the second air hole 86 near the upper mold plate 12, so that the second slide 81 moves away from the second upper cavity 61. Through the pulling force of the second boss 85, the second valve needle 74 moves synchronously with the second slide 81, and the end of the second valve needle 74 is separated from the second connecting hole 73, so that the glue can be injected into the space between the second upper cavity 61 and the second lower cavity 62.

[0046] Gas is injected into another second air hole 86 to move the second slide seat 81 toward the second upper cavity 61. At the same time, the second boss 85 is moved to the bottom of the second fixing hole 84 by the action of air pressure. The second valve needle 74 moves synchronously with the second boss 85 and blocks the second connecting hole 73. The glue cannot be injected between the second upper cavity 61 and the second lower cavity 62.

[0047] A third liquid inlet hole 91 is provided on the fixed plate 11, a fourth liquid inlet hole 92 connected to the third liquid inlet hole 91 is provided on the upper template 12, a fifth liquid inlet hole 93 connected to the fourth liquid inlet hole 92 is provided on the middle template 13, and the second support 7 passes through the fourth liquid inlet hole 92 and is located inside the fifth liquid inlet hole 93.

[0048] A plurality of placement holes 94 are provided on both the upper template 12 and the middle template 13 . The placement holes 94 are arranged along the width direction of the upper template 12 and penetrate the upper template 12 and the middle template 13 .

[0049] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A high-efficiency injection mold, comprising a fixed plate (11), an upper mold plate (12), and a middle mold plate (13), wherein the fixed plate (11) is provided with a gate (21), the upper mold plate (12) is provided with a first upper cavity (22), the middle mold plate (13) is provided with a first lower cavity (23) for cooperating with the first upper cavity (22), the gate (21) is connected to the first upper cavity (22) through a first runner (35), and is characterized in that: It also includes a lower mold plate (14), a second upper mold cavity (61) is provided on the side of the middle mold plate (13) facing away from the first lower mold cavity (23), a second lower mold cavity (62) is provided on the lower mold plate (14) to cooperate with the second upper mold cavity (61), the gate (21) is connected to the second mold cavity through a second runner (63), and the fixed plate (11), the upper mold plate (12), the middle mold plate (13), and the lower mold plate (14) are arranged in sequence.

2. The high-efficiency glue injection mold according to claim 1 is characterized in that: The fixed plate (11) is fixedly connected to a first support (3), and a first connecting hole (33) connected to a first flow channel (35) is provided on the first support (3). A first valve needle (34) is slidably connected to the first support (3), and the first valve needle (34) moves along its own length direction to block or open the first connecting hole (33). The fixed plate (11) is provided with a first cylinder (5) for driving the first valve needle (34) to move.

3. The high-efficiency glue injection mold according to claim 2 is characterized in that: The first cylinder (5) comprises a first slide seat (51), a first sealing ring (52), a first sliding hole (53), a first fixing hole (54), a first boss (55), and a first air hole (56). The first sliding hole (53) is provided on the fixing plate (11). The first slide seat (51) is slidably connected to the first mounting hole. The first sealing ring (52) is sleeved on the outer wall of the first slide seat (51) and contacts the inner wall of the first sliding hole (53). The first fixing hole (54) is provided on the first slide seat (51). The first boss (55) is fixed on the first valve needle (34) and slidably connected to the first fixing hole (54). The two first air holes (56) correspond to the two ends of the first slide seat (51) respectively and are both connected to the first sliding hole (53).

4. The high-efficiency glue injection mold according to claim 3 is characterized in that: The fixed plate (11) is provided with a first liquid inlet hole (41), the upper template (12) is provided with a second liquid inlet hole (42) connected to the first liquid inlet hole (41), and the first support (3) is located inside the second liquid inlet hole (42).

5. The high-efficiency glue injection mold according to claim 1 is characterized in that: The fixed plate (11) is fixedly connected to a second support (7), and a second connecting hole (73) connected to the second flow channel (63) is provided on the second support (7). A second valve needle (74) is slidably connected to the second support (7), and the second valve needle (74) moves along its own length direction to block or open the second connecting hole (73). The fixed plate (11) is provided with a second cylinder (8) for driving the second valve needle (74) to move.

6. The high-efficiency glue injection mold according to claim 5 is characterized in that: The second cylinder (8) comprises a second slide seat (81), a second sealing ring (82), a second slide hole (83), a second fixing hole (84), a second boss (85), and a second air hole (86). The second slide hole (83) is provided on the fixing plate (11). The second slide seat (81) is slidably connected to the second mounting hole. The second sealing ring (82) is sleeved on the outer wall of the second slide seat (81) and contacts the inner wall of the second slide hole (83). The second fixing hole (84) is provided on the second slide seat (81). The second boss (85) is fixed on the second valve needle (74) and slidably connected to the second fixing hole (84). The two second air holes (86) correspond to the two ends of the second slide seat (81) respectively and are both connected to the second slide hole (83).

7. The high-efficiency glue injection mold according to claim 6 is characterized in that: The fixed plate (11) is provided with a third liquid inlet hole (91), the upper template (12) is provided with a fourth liquid inlet hole (92) connected to the third liquid inlet hole (91), the middle template (13) is provided with a fifth liquid inlet hole (93) connected to the fourth liquid inlet hole (92), and the second support (7) passes through the fourth liquid inlet hole (92) and is located inside the fifth liquid inlet hole (93).

8. A high-efficiency glue injection mold according to any one of claims 1 to 7, characterized in that: The upper template (12) and the middle template (13) are both provided with placement holes (94).

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