Silica gel key injection mold with automatic demolding function

Abstract

The utility model relates to the field of silica gel key injection molding, in particular to a silica gel key injection mold capable of automatically demolding. The silica gel key injection mold capable of achieving automatic demolding comprises a base, a lower mold, air cylinders, supporting frames, an upper mold and the like, the two air cylinders are distributed front and back and installed on the front side and the rear side of the middle of the base, the lower mold is fixedly connected between telescopic rods of the two air cylinders, and the two supporting frames are distributed front and back and fixedly connected to the front side and the rear side of the upper portion of the base. The upper die is installed between the upper portions of the two supporting frames. The first demolding assembly uniformly sprays a demolding agent through a nozzle to ensure that the surface of the connected silica gel key is uniformly covered and demolding is easy, the second demolding assembly drives an ejector block to rotate anticlockwise through a rotating shaft to roll the connected silica gel key down from a lower mold, the demolding process is stable and reliable, the whole demolding process is high in automation degree, and the demolding efficiency is improved. The complexity and the labor intensity of manual operation are reduced, and the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of silica gel key injection mould, especially to a silica gel key injection mould of automatic demoulding. BACKGROUND

[0002] Silica gel key is the key product made of silica gel, and belongs to a product category of silica gel products. The silica gel key has excellent heat resistance, cold resistance, environmental resistance, electrical insulation, fatigue resistance and other characteristics, and is widely used in electronic equipment, household appliances, medical devices and other fields. The silica gel key injection mould is a special mould for producing silica gel keys, which can inject materials in a molten state into the mould, and form the required silica gel key by cooling and solidification, and then cut or tear to separate the single silica gel key.

[0003] However, the ordinary injection mould is easy to adhere to the upper die or the lower die when producing the silica gel key, which requires manual demoulding, that is, manually taking out the silica gel key from the mould after each forming, which not only increases the labor intensity, but also reduces the production efficiency, and manual demoulding may cause the silica gel key to be damaged or deformed during demoulding, affecting the product quality.

[0004] Therefore, there is an urgent need for a silica gel key injection mould of automatic demoulding to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to overcome the shortcomings of the ordinary injection mould that is easy to adhere to the upper die or the lower die when producing the silica gel key, manual demoulding is required, which not only increases the labor intensity and reduces the production efficiency, but also may cause the key to be damaged or deformed, affecting the product quality, the utility model provides a silica gel key injection mould of automatic demoulding.

[0006] The utility model realizes through the following technical means: a silica gel key injection mould of automatic demoulding, including base, lower mould, cylinder, support frame, upper mould, injection pipeline and injection branch pipe, two cylinders are distributed in front and back, are installed in the middle part of base two sides in front and back, the lower mould is fixedly connected between the telescopic rod of two cylinders, two support frames are distributed in front and back, are fixedly connected on the upper part of base two sides in front and back, the upper mould is installed between the upper part of two support frames, a plurality of injection branch pipes are distributed in two rows and four columns, are fixedly connected on the top of upper mould, and communicate with upper mould, the injection pipeline is fixedly connected between a plurality of injection branch pipes, still include first demoulding assembly and second demoulding assembly, first demoulding assembly is set between the upper part of two support frames, and second demoulding assembly is set on first demoulding assembly.

[0007] Further illustrate, the first demolding assembly includes electric slide rail, electric slide block, connecting plate, nozzle, injection pipe, connecting pipe, water pump, mounting sleeve, water suction pipe, water tank and water inlet, the electric slide rail is installed on the upper portion of the support frame and contacts with the upper mold, the electric slide block is slidingly connected in the electric slide rail, the connecting plate is fixedly connected between the two electric slide blocks on the side close to each other, the water tank is fixedly connected to the left side of the connecting plate, the water inlet is fixedly connected to the upper front side of the water tank, the two mounting sleeves are symmetrically distributed and fixedly connected to the top of the water tank, the water pump is installed between the two mounting sleeves, the two water suction pipes are distributed in front and back, the front water suction pipe is fixedly connected between the front side of the water pump and the front side of the water tank, the rear water suction pipe is fixedly connected between the rear side of the water pump and the rear side of the water tank, the two connecting pipes are symmetrically distributed and fixedly connected to the upper front and back sides of the water pump, the injection pipe is fixedly connected between the right ends of the two connecting pipes, and the plurality of nozzles are linearly and longitudinally spaced apart and fixedly connected to different positions of the top of the injection pipe.

[0008] Further illustrate, the second demolding assembly includes motor, rotating shaft, top block, slide rod and spring, the motor is installed on the front side of the connecting plate, the rotating shaft is rotatably connected to the right side of the connecting plate and fixedly connected with the output shaft of the motor, the plurality of slide rods are circumferentially spaced apart and slidingly connected to the rotating shaft, the spring is fixedly connected between the slide rod and the rotating shaft, and the top block is fixedly connected to the end of the slide rod away from the rotating shaft.

[0009] Further illustrate, it further includes a bent plate, and the bent plate is fixedly connected to the top of the connecting plate.

[0010] Further illustrate, the bent plate is made of silica gel.

[0011] Further illustrate, it further includes a material collecting frame, and the material collecting frame is fixedly connected to the upper right side of the base.

[0012] It can be known from the above description of the structure of the utility model that the design starting point, concept and advantages of the utility model are:

[0013] The first demolding assembly uniformly sprays the demolding agent through the nozzles, ensures that the surface of the silica gel key is uniformly covered, and is easy to demold, the second demolding assembly drives the top block to rotate counterclockwise through the rotating shaft, winds the silica gel key from the lower mold, ensures that the demolding process is stable and reliable, the whole demolding process has high automation degree, reduces the complexity and labor intensity of manual operation, and improves the production efficiency and product quality. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is a three-dimensional structure schematic view of the electric slide rail, the electric slide block and the injection pipe and other components of the utility model.

[0016] Figure 3The utility model discloses a three -dimensional structure schematic drawing of parts such as water pumping pipe, water tank and water inlet.

[0017] Figure 4 The utility model discloses a partial sectional view of parts such as rotating shaft, top block and slide rod.

[0018] Mark in drawing: 1, base, 101, lower mould, 2, cylinder, 3, support frame, 301, upper mould, 4, electric slide rail, 401, electric sliding block, 5, injection pipe, 6, injection branch pipe, 7, motor, 8, connecting plate, 9, bent plate, 10, nozzle, 11, injection pipe, 12, connecting pipe, 13, water pump, 14, mounting sleeve, 15, water pumping pipe, 16, water tank, 17, water inlet, 18, rotating shaft, 19, top block, 20, slide rod, 21, spring, 22, material collecting frame. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with specific embodiment, and the illustrative embodiment of this utility model and the explanation used to explain the utility model, but not as the limitation of the utility model.

[0020] Embodiment: a kind of automatic demolding's silica gel button injection mold, refer to Figures 1-4 As shown, including base 1, lower mould 101, cylinder 2, support frame 3, upper mould 301, injection pipe 5, injection branch pipe 6 and material collecting frame 22, two cylinders 2 are distributed in front and back, are connected in the middle part front and back of base 1 by the mode of bolt, lower mould 101 is connected between the telescopic rod of two cylinders 2 by the mode of welding, two support frames 3 are distributed in front and back, are connected in the upper part front and back of base 1 by the mode of welding, upper mould 301 is connected between the upper part of two support frames 3 by the mode of bolt, multiple injection branch pipes 6 are distributed in two rows four columns, are connected in the top of upper mould 301 by the mode of welding, and are communicated with upper mould 301, injection pipe 5 is connected between multiple injection branch pipes 6 by the mode of welding, material collecting frame 22 is connected in the upper right side of base 1 by the mode of welding, still include first demolding assembly and second demolding assembly, first demolding assembly is set between the upper part of two support frames 3, and second demolding assembly is set on first demolding assembly.

[0021] Refer to Figures 1-3As shown, the first demolding assembly comprises an electric sliding rail 4, an electric sliding block 401, a connecting plate 8, a bent plate 9, a nozzle 10, a spray pipe 11, a connecting pipe 12, a water pump 13, a mounting sleeve 14, a water suction pipe 15, a water tank 16 and a water inlet 17. The electric sliding rail 4 is connected to the upper part of the support frame 3 by bolts and is in contact with the upper mold 301. The electric sliding block 401 is slidingly connected to the inside of the electric sliding rail 4. The connecting plate 8 is connected between the sides of the two electric sliding blocks 401 close to each other by welding. The bent plate 9 is connected to the top of the connecting plate 8 by welding. The water tank 16 is connected to the left side of the connecting plate 8 by welding. The water inlet 17 is connected to the upper front side of the water tank 16 by welding. The two mounting sleeves 14 are symmetrically distributed and connected to the top of the water tank 16 by welding. The water pump 13 is connected between the interiors of the two mounting sleeves 14 by bolts. The two water suction pipes 15 are distributed front and back. The front water suction pipe 15 is connected between the front side of the water pump 13 and the front side of the water tank 16 by welding. The rear water suction pipe 15 is connected between the rear side of the water pump 13 and the rear side of the water tank 16 by welding. The lower end of the water suction pipe 15 is close to the inner bottom of the water tank 16, ensuring that most of the demolding agent in the water tank 16 is sucked away by the water suction pipe 15. The two connecting pipes 12 are symmetrically distributed and connected to the upper front and rear sides of the water pump 13 by welding. The spray pipe 11 is connected between the right ends of the two connecting pipes 12 by welding. The plurality of nozzles 10 are linearly and vertically spaced apart and connected to different positions on the top of the spray pipe 11 by welding. The plurality of nozzles 10 are aligned with different positions of the upper mold 301, ensuring that the demolding agent is uniformly sprayed.

[0022] Referring to Figures 2-4 As shown, the second demolding assembly comprises a motor 7, a rotating shaft 18, a top block 19, a sliding rod 20 and a spring 21. The motor 7 is connected to the front side of the connecting plate 8 by bolts. The rotating shaft 18 is rotatably connected to the right side of the connecting plate 8 and fixedly connected to the output shaft of the motor 7. The plurality of sliding rods 20 are circumferentially spaced apart and slidingly connected to the rotating shaft 18. The spring 21 is connected between the sliding rod 20 and the rotating shaft 18 by welding. The top block 19 is connected to the end of the sliding rod 20 away from the rotating shaft 18 by welding. The plurality of top blocks 19 can approach and align with different positions of the lower mold 101, ensuring that the plurality of top blocks 19 can fully lift the connected silicone key on the lower mold 101. The bent plate 9 is provided with a slot for accommodating the top block 19 to pass through. The bent plate 9 is made of silicone, which can prevent scratching the top block 19.

[0023] First, the staff starts the air cylinder 2, controls its telescopic rod to stretch out, drives the lower die 101 to move upwards, until the lower die 101 closely adheres to the upper die 301 to form a forming cavity, then connects the material conveying pipe with the injection pipe 5, so that the material is injected into the forming cavity from the injection pipe 5 and the injection branch pipe 6, after injection is completed, disconnect the material conveying pipe with the injection pipe 5, wait for the material in the forming cavity to cool and solidify, after forming, control the telescopic rod of the air cylinder 2 to retract, drive the lower die 101 to move down and reset, close the air cylinder 2, when the connected silicone key is adhered to the upper die 301, inject a proper amount of release agent into the water tank 16 from the water inlet 17, start the electric sliding rail 4 and the water pump 13, control the electric sliding block 401 to drive the connecting plate 8 to move right, at the same time, the water pump 13 operates, the release agent in the water tank 16 is pumped into the water suction pipe 15, and is pumped into the connecting pipe 12 and the spray pipe 11, and is sprayed from the nozzle 10 to the connected silicone key on the upper die 301, so that the connected silicone key is separated from the upper die 301, when the connected silicone key is adhered to the lower die 101, start the electric sliding rail 4 and the motor 7, control the electric sliding block 401 to drive the connecting plate 8 to move right, at the same time, the output shaft of the motor 7 drives the rotating shaft 18 to rotate counterclockwise, the rotating shaft 18 drives the slide rod 20 to rotate counterclockwise, so that the top block 19 lifts the connected silicone key on the lower die 101, when the electric sliding block 401 moves right to the limit position, the connected silicone key on the upper die 301 or the lower die 101 is completely separated, turn off the water pump 13 or the motor 7, finally control the electric sliding block 401 to drive the connecting plate 8 to move left and reset, turn off the electric sliding rail 4.

[0024] It is worth noting that when the connected silicone key is gradually separated from the upper die 301, the bent plate 9 pushes the separated connected silicone key right, so that the connected silicone key finally falls into the collecting frame 22, when the connected silicone key is separated from the lower die 101, it is directly put into the collecting frame 22, so as to facilitate the collection of the connected silicone key.

[0025] Although the present disclosure has been described only with respect to a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present utility model. Therefore, the scope of the present utility model should be limited only by the appended claims.

Claims

1. An automatic demolding silica gel button injection mold, comprising a base (1), a lower mold (101), air cylinders (2), support frames (3), an upper mold (301), an injection pipeline (5) and injection branch pipes (6), two air cylinders (2) are distributed front and back, installed on the front and back sides of the middle part of the base (1), the lower mold (101) is fixedly connected between the telescopic rods of the two air cylinders (2), two support frames (3) are distributed front and back, fixedly connected on the front and back sides of the upper part of the base (1), the upper mold (301) is installed between the upper parts of the two support frames (3), a plurality of injection branch pipes (6) are distributed in two rows and four columns, fixedly connected on the top of the upper mold (301) and communicated with the upper mold (301), the injection pipeline (5) is fixedly connected between the plurality of injection branch pipes (6), characterized in that, The first demolding assembly is arranged between the upper portions of the two support frames (3), and the second demolding assembly is arranged on the first demolding assembly.

2. The automatic demolding silicone button injection mold of claim 1, wherein, The first demolding assembly comprises an electric sliding rail (4), an electric sliding block (401), a connecting plate (8), a nozzle (10), a spraying pipe (11), a connecting pipe (12), a water pump (13), a mounting sleeve (14), a water suction pipe (15), a water tank (16), and a water inlet (17). The electric sliding rail (4) is mounted on the upper portion of the support frame (3) and is in contact with the upper die (301). The electric sliding block (401) is slidingly connected to the inside of the electric sliding rail (4). The connecting plate (8) is fixedly connected between the sides of the two electric sliding blocks (401) close to each other. The water tank (16) is fixedly connected to the left side of the connecting plate (8). The water inlet (17) is fixedly connected to the upper front side of the water tank (16). The two mounting sleeves (14) are symmetrically distributed and fixedly connected to the top of the water tank (16). The water pump (13) is mounted between the two mounting sleeves (14). The two water suction pipes (15) are distributed in front and back. The front water suction pipe (15) is fixedly connected between the front side of the water pump (13) and the front side of the water tank (16). The rear water suction pipe (15) is fixedly connected between the rear side of the water pump (13) and the rear side of the water tank (16). The two connecting pipes (12) are symmetrically distributed and fixedly connected to the upper front and rear sides of the water pump (13). The spraying pipe (11) is fixedly connected between the right ends of the two connecting pipes (12). The plurality of nozzles (10) are linearly and longitudinally spaced apart and fixedly connected to different positions on the top of the spraying pipe (11).

3. The automatic demolding silicone button injection mold of claim 2, wherein, The second demolding assembly comprises a motor (7), a rotating shaft (18), a top block (19), a sliding rod (20), and a spring (21). The motor (7) is mounted on the front side of the connecting plate (8). The rotating shaft (18) is rotatably connected to the right side of the connecting plate (8) and is fixedly connected to the output shaft of the motor (7). The plurality of sliding rods (20) are circumferentially spaced apart and slidingly connected to the rotating shaft (18). The spring (21) is fixedly connected between the sliding rod (20) and the rotating shaft (18). The top block (19) is fixedly connected to the end of the sliding rod (20) away from the rotating shaft (18).

4. The automatic demolding silicone button injection mold of claim 3, wherein, The bending plate (9) is fixedly connected to the top of the connecting plate (8).

5. The automatic demolding silicone button injection mold of claim 4, wherein, The bending plate (9) is made of silica gel.

6. The automatic demolding silicone button injection mold of claim 5, wherein, The collecting frame (22) is fixedly connected to the upper right side of the base (1). The bending plate (9) is made of silica gel.

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