Novel injection product punching die

Abstract

A novel injection molding product punching mold comprises a main supporting base, a lower lifting air cylinder, a lower mold table, a driving lifting block, an upper mold plate, a punching cutter mounting table, an upper lifting air cylinder and a driven lifting block, injection molding part recycling grooves are formed in the left side and the right side of the main supporting base, and a lower limiting column and a side supporting plate are arranged at the top of the main supporting base; the side supporting plates are distributed on the two sides of the lower limiting column, upper fixing tables are arranged on the front side and the rear side of the lower mold table, the tops of the side supporting plates are fixedly connected with the upper fixing tables, the bottom of a lower lifting air cylinder is fixedly connected with a main supporting base, and the top of the lower lifting air cylinder is fixedly connected with an active lifting block. A limiting column avoiding hole is formed in the active lifting block and corresponds to the lower limiting column in position, the inner diameter of the limiting column avoiding hole is larger than the outer diameter of the lower limiting column, and a main injection mold block is arranged on the top of the active lifting block.

Description

Technical Field

[0001] The utility model relates to the field of injection molding product molds, in particular to a novel punching mold for injection molding products. Background Art

[0002] The existing patent (Announcement No.: CN220280386U) proposes a new type of punching mold for injection molding products, including a base, a frame is fixedly provided on the top of the base, and a lifting mechanism is provided in the inner cavity of the frame. By setting the lifting mechanism, the lifting mechanism can drive the upper mold to lift and lower to facilitate mold opening and closing. When closing the mold, the upper mold presses the guide rod downward to make the ejector retract to the bottom of the inner cavity of the lower mold. When opening the mold, the ejector can be reset by the compression elastic force of the reset spring, and the ejector can automatically eject the product molded in the inner cavity of the lower mold, which is convenient for mold removal. By setting a punching component, the hydraulic rod on the punching component drives the cutter to move and automatically punch the protruding plastic at the injection port. However, this device "uses the compression elastic force of the reset spring to reset the ejector when opening the mold, and the ejector can automatically eject the product molded in the inner cavity of the lower mold". The products that are ejected after the mold is opened and the cut-off water outlets are all recycled by the staff, and the operating space is limited due to the influence of the upper and lower molds during recycling, which affects the recycling efficiency. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a new punching and cutting mold for injection molding products, which can recover the residual materials by lifting the upper template, is easy to operate overall, has a large operating space during recovery, can be recycled at one time after multiple injection molding, and has higher recovery efficiency.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A novel punching and cutting mold for injection molding products comprises a main supporting base, a lower lifting cylinder, a lower mold platform, an active lifting block, an upper template, a punching and cutting knife mounting platform, an upper lifting cylinder and a driven lifting block. The main supporting base is provided with injection molding part recovery grooves on the left and right sides, the top of the main supporting base is provided with a lower limit column and a side support plate, the lower limit column is in a central position, the side support plates are distributed on both sides of the lower limit column, the front and rear sides of the lower mold platform are provided with an upper fixed platform, the top of the side support plate is fixedly connected to the upper fixed platform, the bottom of the lower lifting cylinder is fixedly connected to the main supporting base, the top of the lower lifting cylinder is fixedly connected to the active lifting block, the active lifting block is provided with a limit column avoidance hole inside, the limit column avoidance hole corresponds to the position of the lower limit column, the inner diameter of the limit column avoidance hole is larger than the outer diameter of the lower limit column, the top of the active lifting block is provided with a main injection mold block, the top of the driven lifting block is provided with a secondary injection mold block, the secondary injection mold block is adapted to the main injection mold block, and the secondary injection mold block is connected to the main injection mold block.

[0006] The auxiliary injection mold block slides on the outside of the main injection mold block, and the auxiliary injection mold block and the main injection mold block together constitute a lower mold insertion block. The lower mold table has a mold connecting groove inside, the mold connecting groove is adapted to the lower mold insert block, the mold connecting groove is connected to the lower mold insert block, and the lower mold insert block is inserted into the mold connecting groove. A middle lifting cylinder is provided on the side of the upper fixed table, and a middle cylinder connecting table is provided on the front and rear sides of the upper template. The top of the upper fixed table is fixedly connected to the middle cylinder connecting table, and a tool connecting groove is provided inside the upper template.

[0007] The bottom of the punching knife mounting platform is provided with a punching knife, the punching knife is adapted to the knife connecting groove, the punching knife is connected to the knife connecting groove, the punching knife slides inside the knife connecting groove, the side of the punching knife is provided with a punching knife limiting groove, the side of the knife connecting groove is provided with a punching knife positioning block, and the punching knife positioning block is adapted to the punching knife limiting groove. Beneficial Effects

[0008] 1. When the device of the utility model performs product injection molding, liquid injection plastic is injected into the mold groove composed of the punching knife, the mold connecting groove, the main injection mold block and the auxiliary injection mold block through the injection tube. After the injection plastic is completely cooled, the upper lifting cylinder and the lower lifting cylinder are synchronously started to make the punching knife penetrate into the mold connecting groove to separate the injection molded part body from the residual material. At the same time, the main injection mold block and the auxiliary injection mold block connector are synchronously lowered until the driven lifting block descends to contact the lower limit column, and the driven lifting block stops descending. As the active lifting block continues to descend, the auxiliary injection mold block gradually lifts the injection molded part until the injection molded part slides into the injection molded part recovery groove to complete the recovery of the injection molded part. The recovery of the injection molded part can be completed automatically, and the residual material can be recovered by lifting the upper template. The overall operation is convenient, the operating space is large during recovery, and it can be recycled at one time after multiple injections, and the recycling efficiency is higher.

[0009] 2. The punching knife limit groove of the utility model slides on the outside of the punching knife positioning block, and the punching knife positioning block can position the punching knife inside the tool connecting groove, so that after the punching knife rises to the limit position, the bottom surface of the punching knife coincides with the bottom surface of the upper template, ensuring that the shape and thickness of the injection molded parts completed each time are the same, and ensuring the yield rate of injection molded parts produced by this device.

[0010] 3. The punching knife mounting platform, upper template, lower mold platform and other parts of the utility model adopt a split design, so that each part can be maintained and replaced separately, reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of a new punching mold structure for injection molding products.

[0012] Figure 2 This is a front cross-sectional view of a new punching mold for injection molding products described in the utility model.

[0013] Figure 3 A new type of punching mold explosion for injection molding products described in this utility model Figure 1 .

[0014] Figure 4 A new type of punching mold explosion for injection molding products described in this utility model Figure 2 .

[0015] Figure 5 This is a schematic diagram of the main support base structure described in the utility model.

[0016] Figure 6 This is a schematic diagram of the upper template structure described in the utility model.

[0017] Figure 7 This is a schematic diagram of the structure of the punching knife mounting platform described in the utility model.

[0018] Figure 8 This is a schematic diagram of the structure of the driven lifting block described in the utility model.

[0019] Fig. 9 This is a schematic diagram of the structure of the active lifting block described in the utility model.

[0020] Fig.10 This is a schematic diagram of the structure of the lower mold table described in the utility model.

[0021] Fig.11 This is a material arrangement state diagram of a new type of punching mold for injection molding products described in the utility model. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below according to the accompanying drawings and embodiments:

[0023] Embodiment 1:

[0024] A new type of punching mold for injection molding products, including a main support base 1, a lower lifting cylinder 4, a lower mold table 5, an active lifting block 6, an upper mold plate 8, a punching knife mounting table 11, an upper lifting cylinder 13, and a driven lifting block 23. The main support base 1 has injection molding recovery grooves 2 on the left and right sides, and the top of the main support base 1 has a lower limit column 3 and a side support plate 24. The lower limit column 3 is in the center position, and the side support plates 24 are distributed on both sides of the lower limit column 3. The lower mold table 5 has an upper fixed table 7 on the front and rear sides, and the top of the side support plate 24 is fixedly connected to the upper fixed Platform 7, the bottom of the lower lifting cylinder 4 is fixedly connected to the main supporting base 1, the top of the lower lifting cylinder 4 is fixedly connected to the active lifting block 6, the active lifting block 6 has a limit column avoidance hole 21 inside, the limit column avoidance hole 21 corresponds to the position of the lower limit column 3, the inner diameter of the limit column avoidance hole 21 is larger than the outer diameter of the lower limit column 3, the top of the active lifting block 6 has a main injection mold block 19, the top of the driven lifting block 23 has a secondary injection mold block 20, the secondary injection mold block 20 is adapted to the main injection mold block 19, and the secondary injection mold block 20 is connected to the main injection mold block 19.

[0025] Embodiment 2:

[0026] The auxiliary injection mold block 20 of the utility model slides on the outside of the main injection mold block 19, and the auxiliary injection mold block 20 and the main injection mold block 19 together constitute a lower mold insertion block. The lower mold table 5 has a mold connecting groove 18 inside, and the mold connecting groove 18 is adapted to the lower mold insertion block. The mold connecting groove 18 is connected to the lower mold insertion block, and the lower mold insertion block is inserted into the mold connecting groove 18. The side of the upper fixed table 7 has a middle lifting cylinder 10, and the front and rear sides of the upper template 8 have middle cylinder connecting platforms 9. The top of the upper fixed table 7 is fixedly connected to the middle cylinder connecting platform 9, and the upper template 8 has a tool connecting groove 25 inside.

[0027] Embodiment 3:

[0028] The punching knife installation platform 11 of the utility model is provided with a punching knife 15 at the bottom, the punching knife 15 is adapted to the tool connecting groove 25, the punching knife 15 is connected to the tool connecting groove 25, the punching knife 15 slides inside the tool connecting groove 25, the side of the punching knife 15 is provided with a punching knife limiting groove 26, the punching knife limiting groove 26 slides outside the punching knife positioning block 14, the punching knife positioning block 14 can position the punching knife 15 inside the tool connecting groove 25, so that after the punching knife 15 rises to the limit position, the bottom surface of the punching knife 15 coincides with the bottom surface of the upper template 8, so as to ensure that the shape and thickness of the injection molded parts completed each time are the same, and to ensure the yield rate of the injection molded parts produced by this device, the side of the tool connecting groove 25 is provided with a punching knife positioning block 14, and the punching knife positioning block 14 is adapted to the punching knife limiting groove 26.

[0029] Embodiment 4:

[0030] The punching knife positioning block 14 of the utility model is connected to the punching knife limiting groove 26, and the punching knife positioning block 14 slides inside the punching knife limiting groove 26. The side of the punching knife mounting platform 11 is provided with an upper cylinder connecting platform 12. The punching knife mounting platform 11, the upper template 8, the lower mold platform 5 and other parts adopt a split design, so that each part can be maintained and replaced separately, reducing the maintenance cost. The side of the upper template 8 is provided with an upper lifting cylinder 13, and the top of the upper lifting cylinder 13 is fixedly connected to the upper cylinder connecting platform 12.

[0031] Embodiment 5:

[0032] The punching knife installation platform 11 of the utility model has an injection tube avoidance hole 16 in the middle, and an injection tube 17 is provided on the upper mold plate 8. Liquid injection plastic is injected into the mold groove composed of the punching knife 15, the mold connecting groove 18, the main injection mold block 19, and the auxiliary injection mold block 20 through the injection tube 17. After the injection plastic is completely cooled, the upper lifting cylinder 13 and the lower lifting cylinder 4 are synchronously started to make the punching knife 15 penetrate into the mold connecting groove 18, so that the main body of the injection molded part is separated from the residual material, and at the same time, the main injection mold block 19 and the auxiliary injection mold block 20 connection body are synchronously lowered until The driven lifting block 23 descends until it contacts the lower limit column 3, and the driven lifting block 23 stops descending. As the active lifting block 6 continues to descend, the auxiliary injection mold block 20 gradually lifts the injection molded part until the injection molded part slides into the injection molded part recovery groove 2 to complete the recovery of the injection molded part. The recovery of the injection molded part can be completed automatically, and the residual material can be recovered by lifting the upper template 8. The overall operation is convenient and the processing efficiency is higher. The injection molding tube 17 is adapted to the injection molding tube avoidance hole 16, and the injection molding tube 17 is connected to the injection molding tube avoidance hole 16, and the injection molding tube 17 slides inside the injection molding tube avoidance hole 16.

[0033] Embodiment 6:

[0034] The utility model installation steps are as follows: the bottom of the lower lifting cylinder 4 is fixedly connected to the main support base 1, the top of the lower lifting cylinder 4 is fixedly connected to the active lifting block 6, the auxiliary injection mold block 20 of the driven lifting block 23 is sleeved on the outside of the main injection mold block 19 of the active lifting block 6, so that the auxiliary injection mold block 20 and the main injection mold block 19 together constitute the lower mold insertion block, the top of the side support plate 24 of the main support base 1 is fixedly connected to the upper fixed platform 7 of the lower mold table 5, the lower mold insertion block is inserted into the mold connecting groove 18 of the lower mold table 5, and the middle lifting cylinder of the lower mold table 5 is fixedly connected to the upper fixed platform 7 of the lower mold table 5. The top of 10 is fixedly connected to the middle cylinder connecting platform 9 of the upper template 8, the side of the upper template 8 is fixedly connected to the upper lifting cylinder 13, the top of the upper lifting cylinder 13 is fixedly connected to the upper cylinder connecting platform 12 of the punching knife mounting platform 11, the punching knife 15 of the punching knife mounting platform 11 is inserted into the tool connecting groove 25 of the upper template 8, the punching knife limiting groove 26 of the punching knife mounting platform 11 is sleeved on the outside of the punching knife positioning block 14 of the upper template 8, and the injection tube 17 of the upper template 8 is inserted into the injection tube avoidance hole 16 of the punching knife mounting platform 11, and the installation of this device is completed.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A new type of punching mold for injection molding products, characterized by : It comprises a main support base (1), a lower lifting cylinder (4), a lower mold table (5), an active lifting block (6), an upper mold plate (8), a punching knife mounting table (11), an upper lifting cylinder (13), and a driven lifting block (23), wherein the left and right sides of the main support base (1) are provided with injection molded part recovery grooves (2), the top of the main support base (1) is provided with a lower limit column (3) and a side support plate (24), wherein the lower limit column (3) is located in the center, and the side support plates (24) are distributed on both sides of the lower limit column (3), and the front and rear sides of the lower mold table (5) are provided with an upper fixed table (7), the top of the side support plate (24) is fixedly connected to the upper fixed table (7), and the lower The bottom of the lifting cylinder (4) is fixedly connected to the main support base (1), and the top of the lower lifting cylinder (4) is fixedly connected to the active lifting block (6). The active lifting block (6) has a limit column avoidance hole (21) inside, and the limit column avoidance hole (21) corresponds to the position of the lower limit column (3). The inner diameter of the limit column avoidance hole (21) is larger than the outer diameter of the lower limit column (3). The top of the active lifting block (6) has a main injection mold block (19), and the top of the driven lifting block (23) has a secondary injection mold block (20), the secondary injection mold block (20) is adapted to the main injection mold block (19), and the secondary injection mold block (20) is connected to the main injection mold block (19).

2. A new type of punching mold for injection molding products according to claim 1, characterized in that The auxiliary injection mold block (20) slides outside the main injection mold block (19), and the auxiliary injection mold block (20) and the main injection mold block (19) together constitute a lower mold insertion block. The lower mold platform (5) has a mold connection groove (18) inside, and the mold connection groove (18) is adapted to the lower mold insertion block. The mold connection groove (18) is connected to the lower mold insertion block, and the lower mold insertion block is inserted into the mold connection groove (18). The side of the upper fixed platform (7) has a middle lifting cylinder (10), and the front and rear sides of the upper mold plate (8) have a middle cylinder connection platform (9). The top of the upper fixed platform (7) is fixedly connected to the middle cylinder connection platform (9), and the upper mold plate (8) has a tool connection groove (25) inside.

3. A new type of punching mold for injection molding products according to claim 2, characterized in that The punching knife mounting platform (11) has a punching knife (15) at the bottom, the punching knife (15) is adapted to the knife connecting groove (25), the punching knife (15) is connected to the knife connecting groove (25), the punching knife (15) slides inside the knife connecting groove (25), the side of the punching knife (15) has a punching knife limiting groove (26), the side of the knife connecting groove (25) has a punching knife positioning block (14), and the punching knife positioning block (14) is adapted to the punching knife limiting groove (26).

4. A new type of punching mold for injection molding products according to claim 3, characterized in that The punching knife positioning block (14) is connected to the punching knife limiting groove (26), and the punching knife positioning block (14) slides inside the punching knife limiting groove (26). The side of the punching knife mounting platform (11) is provided with an upper cylinder connecting platform (12), and the side of the upper template (8) is provided with an upper lifting cylinder (13), and the top of the upper lifting cylinder (13) is fixedly connected to the upper cylinder connecting platform (12).

5. A new type of punching mold for injection molding products according to claim 4, characterized in that The punching knife mounting platform (11) has an injection molding tube avoidance hole (16) in the middle, and the upper mold plate (8) has an injection molding tube (17) on the upper part. The injection molding tube (17) is adapted to the injection molding tube avoidance hole (16), the injection molding tube (17) is connected to the injection molding tube avoidance hole (16), and the injection molding tube (17) slides inside the injection molding tube avoidance hole (16).

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