Injection mold for improving manufacturing efficiency of silica gel products

Abstract

The invention relates to the technical field of injection molds, and particularly provides an injection mold for improving the manufacturing efficiency of silica gel products, the injection mold comprises an upper mold, a lower mold notch and a blade driving unit, the upper mold is provided with a plurality of upper mold cavities, and the lower mold is provided with a plurality of lower mold cavities in one-to-one correspondence with the upper mold cavities; the adjacent upper mold cavities are communicated through injection molding runners; the notching knife is located on the lower mold, a runner opening is formed in the notching knife, and when the notching knife is inserted into the upper mold, the runner opening coincides with the injection molding runner; when the upper mold and the lower mold are closed, the blade driving unit drives the notching knife to be inserted into the upper mold, and when the upper mold and the lower mold are separated, the blade driving unit drives the notching knife to retract into the lower mold; when the silica gel product is subjected to injection molding, the operations of water gap cutting and trimming are not needed, the production steps are simplified, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and particularly to an injection mold for improving the manufacturing efficiency of silicone products. Background Art

[0002] When making products from TPE or silicone materials, the raw materials need to be melted into a liquid first and then formed through a mold.

[0003] The current forming method for male silicone products is through single casting. After casting, each formed product is trimmed by cutting the edges. This method has the problem of low manufacturing efficiency. Therefore, this application proposes an injection mold for improving the manufacturing efficiency of silicone products. Summary of the Invention

[0004] The purpose of the present invention is to provide an injection mold for improving the manufacturing efficiency of silicone products to solve the problem of low production efficiency of current silicone products.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An injection mold for improving the manufacturing efficiency of silicone products, including an upper mold and a lower mold. A plurality of upper mold cavities are provided on the upper mold, and a plurality of lower mold cavities corresponding to the upper mold cavities one by one are provided on the lower mold. Adjacent upper mold cavities are connected through an injection runner. The injection mold further includes:

[0007] A cutting knife, which is located on the lower mold. A runner opening with a shape the same as the cross-section of the injection runner is provided on the cutting knife. When the cutting knife is inserted into the upper mold, the runner opening coincides with the injection runner.

[0008] A blade driving unit, which is fixedly connected to the lower mold. When the upper mold and the lower mold are closed, the blade driving unit drives the cutting knife to insert into the upper mold. When the upper mold and the lower mold are separated, the blade driving unit drives the cutting knife to retract into the lower mold.

[0009] Further, the blade driving unit includes:

[0010] A first pressure member for jacking up the cutting knife. The first pressure member is filled with a liquid medium.

[0011] A second pressure member, which is connected to the first pressure member through a pressure pipe. The second pressure member includes a second pressure chamber, a second piston, a pressure shaft, and a first spring. The second piston is slidably connected within the second pressure chamber. One end of the pressure shaft is fixedly connected to the second piston, and the other end passes through the end of the second pressure chamber and is disposed between the upper mold and the lower mold. A liquid medium fills the side of the second piston facing away from the pressure shaft. The first spring is located inside the second pressure chamber and on the side of the second piston facing away from the pressure shaft. The second pressure chamber is connected to the first pressure member through a pressure pipe, and the liquid medium flows through the pressure pipe inside the first pressure member and the second pressure member.

[0012] Further, the first pressure member includes:

[0013] A first pressure chamber, which is a closed cavity and is in communication with the second pressure chamber;

[0014] A first piston, which is slidably connected within the first pressure chamber;

[0015] A tool holder shaft, which is a rod-shaped structure. One end of the tool holder shaft is fixedly connected to the first piston, and the other end passes through the end of the first pressure chamber and is fixedly connected to the cutting tool.

[0016] Further, the blade driving unit further includes:

[0017] A buffer cylinder, which is located on the pressure pipe and is in communication with the pressure pipe. The buffer cylinder includes a buffer chamber, a buffer piston, and a second spring. A constant pressure hole and a buffer hole are respectively provided at both ends of the buffer chamber. The buffer hole is in communication with the pressure pipe. The second spring is located between the constant pressure hole and the buffer piston and is inside the buffer chamber. The constant pressure hole is in communication with the outside.

[0018] Further, an exhaust hole is further provided on the side of the upper mold facing away from the lower mold, and the exhaust hole is located at the top of the upper mold cavity.

[0019] Further, the upper mold includes an outer mold body and an inner mold body. The upper mold cavity is located within the inner mold body, and the inner mold body is fixedly connected within the upper mold. The injection mold further includes:

[0020] A cooling unit for rapidly cooling the inner mold body, and the cooling unit is located between the inner mold body and the outer mold body.

[0021] Further, a first spiral groove is provided on the inner wall of the outer mold body that cooperates with the inner mold body, and a second spiral groove is provided on the outer wall of the inner mold body that cooperates with the outer mold body. When the outer mold body is installed on the inner mold body, the first spiral groove and the second spiral groove form a spiral waterway. Both the first spiral groove and the second spiral groove are of a double-spiral structure, and one end of the double-spiral structure is connected.

[0022] Further, the injection mold further includes:

[0023] A heating unit for heating the upper mold cavity, and the heating unit is located between the inner mold body and the outer mold body.

[0024] Further, the injection mold further includes:

[0025] An exhaust assembly. The exhaust assembly includes an exhaust pipe, the exhaust pipe is connected to the exhaust hole, an intake valve and an exhaust valve are respectively arranged at both ends of the exhaust passage, and the intake valve is connected to a gas source, and the gas source is used for inflating the upper mold cavity.

[0026] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0027] The injection mold for improving the manufacturing efficiency of silicone products disclosed in the embodiments of the present invention synchronously cuts the sprue of the product by a cutting knife during demolding, so that the product is a finished product after demolding, and there is no need to perform sprue cutting and trimming operations, simplifying the production steps and improving the production efficiency. Description of the Drawings

[0028] Figure 1 It is a schematic structural diagram of the injection mold for improving the manufacturing efficiency of silicone products disclosed in the embodiments of the present invention.

[0029] Figure 2 It is Figure 1 The partial enlarged view of I in

[0030] Figure 3 It is Figure 1 The partial enlarged view of II in

[0031] Figure 4 It is a schematic structural diagram of the first pressure member in the injection mold for improving the manufacturing efficiency of silicone products disclosed in the embodiments of the present invention.

[0032] Figure 5 It is Figure 1 The top view of

[0033] Figure 6 It is a schematic structural diagram of the surface where the upper mold and the lower mold of the injection mold for improving the manufacturing efficiency of silicone products disclosed in the embodiments of the present invention are attached.

[0034] Figure 7 is Figure 6 the partial enlarged view at III in

[0035] Figure 8 It is a schematic structural view of the surface where the lower mold and the upper mold are fitted together in the injection mold for improving the manufacturing efficiency of silicone products disclosed in the embodiment of the present invention.

[0036] Figure 9 is Figure 8 the partial enlarged view at IV in

[0037] Figure 10 It is a pipeline diagram of the tool driving unit in the injection mold for improving the manufacturing efficiency of silicone products disclosed in the embodiment of the present invention.

[0038] Figure 11 It is a schematic structural view of the cutting knife in the injection mold for improving the manufacturing efficiency of silicone products disclosed in the embodiment of the present invention.

[0039] Reference numerals:

[0040] 100, upper mold; 101, upper mold cavity; 102, cutter groove; 103, exhaust hole; 104, injection runner; 110, outer mold body; 120, inner mold body; 200, lower mold; 201, lower mold cavity; 202, tool hole; 210, cavity module; 220, docking module; 230, bottom shell; 240, mold core; 300, heating unit; 400, cooling unit; 410, water inlet interface; 420, water outlet interface; 500, cutting knife; 510, runner opening; 600, blade driving unit; 610, first pressure member; 611, first pressure chamber; 612, first piston; 613, tool holder shaft; 620, second pressure member; 621, second pressure chamber; 622, second piston; 623, pressure shaft; 624, first spring; 630, buffer cylinder; 631, buffer chamber; 632, buffer piston; 633, constant pressure hole; 634, buffer hole; 635, second spring; 700, exhaust assembly; 710, exhaust pipe; 720, intake valve; 730, exhaust valve. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment 1

[0043] As Figure 1 andFigure 11 As shown in Figure 11 , an embodiment of the present invention provides an injection mold for improving the manufacturing efficiency of silicone products. The injection mold includes an upper mold 100 and a lower mold 200. A plurality of upper mold cavities 101 are provided on the upper mold 100, and a plurality of lower mold cavities 201 are provided on the lower mold 200. When the upper mold 100 and the lower mold 200 are aligned, the upper mold cavities 101 and the lower mold cavities 201 correspond one by one, and the upper mold cavities 101 and the lower mold cavities 201 form a mold cavity for injection molding. Adjacent mold cavities are connected by an injection runner 104. A cutting knife 500 is further provided on the lower mold 200. A runner opening 510 having a shape identical to the cross-section of the injection runner 104 is provided on the cutting knife 500. The cutting knife 500 is controlled by a blade driving unit 600 located on the lower mold 200 to move up and down telescopically. The cutting knife 500 moves telescopically on the lower mold 200 under the control of the blade driving unit 600. When the upper mold 100 and the upper mold 100 are closed, the cutting knife 500 extends and the cutting head of the cutting knife 500 is located inside the upper mold 100. The injection runner 104 coincides with the runner opening 510. After the upper mold 100 is separated from the lower mold 200, the cutting knife 500 retracts into the lower mold 200, and the runner opening 510 cuts the injection-molded product along the edge of the lower mold cavity 201.

[0044] In this embodiment, taking the injection molding of a certain silicone product as an example, a mold core 240 is further provided inside the lower mold cavity 201. The injection cavity formed by the upper mold cavity 101, the lower mold cavity 201, and the mold core 240 is the soft rubber (TPE or silicone) part of the silicone product. The shape of the mold core 240 is the inner cavity of the soft rubber part of the silicone product. When producing the silicone product, the upper mold 100 and the lower mold 200 are closed by a press, and then the melted raw material is injected into the mold cavity formed by the upper mold cavity 101 and the lower mold cavity 201 through the injection runner 104 and filled in the mold cavity. After the raw material is cooled, the raw material solidifies and forms in the mold cavity. After cooling is completed, the upper mold 100 is lifted by a press, that is, the upper mold 100 and the lower mold 200 are separated. During the separation of the lower mold 200, the cutting knife 500 retracts into the lower mold 200. Since the injection runner 104 coincides with the runner opening 510, during the retraction of the cutting knife 500, the runner opening 510 cuts the material in the injection runner 104. Also, since the cutting knife 500 is in contact with the lower mold cavity 201, the cutting knife 500 can cut the material in the injection runner 104 along the edge of the lower mold cavity 201, thereby trimming the water inlet and trimming the product, eliminating the traditional manual trimming operation and improving the production efficiency of the product.

[0045] The injection mold for improving the manufacturing efficiency of silicone products disclosed in the embodiments of the present invention synchronously cuts the sprue of the product by the cutting knife 500 during demolding, so that the product is a finished product after demolding, and there is no need to perform the operations of cutting the sprue and trimming the edge, which simplifies the production steps and improves the production efficiency.

[0046] Specifically, in this embodiment, as Figure 1 , Figure 6 and Figure 7 shown, the upper mold 100 is in a block shape, the upper mold cavity 101 is a blind hole structure opened on the upper mold 100, and a cutting knife groove 102 is further provided on the upper mold cavity 101. The cutting knife groove 102 is a groove-shaped structure provided on the inner wall of the upper mold cavity 101. When the upper mold 100 and the lower mold 200 are closed, the cutting knife 500 is inserted into the cutting knife groove 102.

[0047] As Figure 1 and Figure 6 shown, an exhaust hole 103 is further provided on one side of the upper mold cavity 101 away from the lower mold 200. The exhaust hole 103 is located at the top of the upper mold cavity 101. In this embodiment, the upper mold 100 is located above and the lower mold 200 is located below. During injection molding, the air in the upper mold cavity 101 is discharged through the exhaust hole 103, thereby preventing bubbles from appearing in the product.

[0048] As a preferred implementation manner in this embodiment, a guide hole (not shown in the figure) is further provided on the upper mold 100, and a guide post (not shown in the figure) is provided on the lower mold 200. When the upper mold 100 and the lower mold 200 are closed, the guide post is inserted into the guide hole to play a role in positioning the upper mold 100. The structures of the guide hole and the guide post are the same as those in the prior art.

[0049] As Figure 1 , Figure 8 and Figure 9As shown, the lower mold 200 includes a cavity module 210, a docking module 220, and a bottom shell 230. The cavity module 210 is a flat plate structure, and the docking module 220 is a block structure. The docking module 220 is fixedly connected to the inside of the cavity module 210 by bolts. The cavity module 210 is provided with through holes for installing the docking module 220. The cutting knife 500 is located between the cavity module 210 and the docking module 220. The cutting knife 500 is slidably connected between the cavity module 210 and the docking module 220. The lower mold cavity 201 is located on the docking module 220. The docking module 220 is provided with knife holes 202 at the edge of the lower mold cavity 201. The cutting knife 500 is located at the knife holes 202. The bottom shell 230 is a groove-shaped structure. The bottom shell 230 is fixedly connected to the side of the cavity module 210 facing away from the upper mold 100 by bolts. The blade driving unit 600 is fixedly connected to the inside of the bottom shell 230.

[0050] As a preferred implementation manner in this embodiment, the upper mold 100 includes an outer mold body 110 and an inner mold body 120. The upper mold cavity 101 is located inside the inner mold body 120. The inner mold body 120 is fixedly connected to the inside of the upper mold 100 by bolts. The injection mold further includes:

[0051] A cooling unit 400 for quickly cooling the inner mold body 120. In this embodiment, the cooling unit 400 is a waterway structure provided between the outer mold body 110 and the inner mold body 120.

[0052] As a preferred implementation manner in this embodiment, the cooling unit 400 is an annular waterway. The cooling waterway of the cooling unit 400 is provided on the outer mold body 110 and the inner mold body 120. The inner wall of the outer mold body 110 that cooperates with the inner mold body 120 is provided with a first spiral groove. The outer wall of the inner mold body 120 that cooperates with the outer mold body 110 is provided with a second spiral groove. When the inner mold body 120 is installed on the outer mold body 110, the first spiral groove and the second spiral groove form a spiral waterway. Both the first spiral groove and the second spiral groove are double spiral structures, and one end of the double spiral structures is connected, as Figure 5 shown. The spiral waterway is provided with a water inlet interface 410 and a water outlet interface 420 at the end of the inner mold body 120 away from the lower mold 200. The water inlet interface 410 and the water outlet interface 420 are used to connect to a cooling water source.

[0053] When cooling the inner mold body 120, cooling water is introduced into the cooling unit 400, and the heat of the inner mold body 120 is carried away when the cooling water passes through the cooling unit 400.

[0054] As a preferred implementation in this embodiment, the injection mold further includes:

[0055] A heating unit 300 for heating the upper mold cavity 101 to keep the mold cavity warm when inputting raw materials and prevent the raw materials from cooling rapidly.

[0056] Specifically, as Figure 1 shown, in this embodiment, the height of the upper mold cavity 101 is greater than the height of the lower mold cavity 201, and the parting surface of the soft rubber part is located at the mouth position. Therefore, a heating unit 300 is arranged in the upper mold cavity 101 so that during injection molding, the temperature in the upper mold cavity 101 is relatively high to prevent the injection molding material from cooling prematurely. The heating unit 300 is a ceramic heating wire, that is, the heating unit 300 is an electric heating wire covered with insulating and heat-conducting ceramics on the outside, and the heating unit 300 is wound around the inner mold body 120.

[0057] The injection runner 104 is a groove structure arranged on the upper mold 100. The injection runner 104 connects multiple upper mold cavities 101. The mold core 240 is fixed to the inner side of the lower mold cavity 201 by screws. The lower mold cavity 201 is determined according to the shape of the product, and the lower mold cavity 201 is machined by machining.

[0058] In this embodiment, as Figure 11 shown, the cutting knife 500 is a curved or straight blade that fits the inner wall of the lower mold cavity 201, and the inner side of the runner opening 510 is sharpened. The shape of the runner opening 510 is the same as the shape of the injection runner 104.

[0059] As a preferred implementation in this embodiment, as Figure 1 , Figure 2 and Figure 10 shown, the blade driving unit 600 includes:

[0060] A first pressure member 610 for jacking up the cutting knife 500. The first pressure member 610 is filled with a liquid medium;

[0061] A second pressure member 620, the second pressure member 620 is connected to the first pressure member 610 through a pressure pipe. The second pressure member 620 includes a second pressure chamber 621, a second piston 622, a pressure shaft 623, and a first spring 624. The second piston 622 is slidably connected within the second pressure chamber 621. The second pressure chamber 621 is provided with a shaft hole and a liquid outlet hole on both sides of the second piston 622. A liquid medium fills the space between the second piston 622 and the end of the second pressure chamber 621 provided with the liquid outlet hole. One end of the pressure shaft 623 is fixedly connected to the second piston 622, and the other end passes through the shaft hole and is located outside the second pressure chamber 621. The first spring 624 is located inside the second pressure chamber 621, and the first spring 624 is located between the second piston 622 and the liquid outlet hole. The liquid outlet hole is connected to the first pressure member 610 through a pressure pipe. The liquid medium flows inside the first pressure member 610 and the second pressure member 620 through the pressure pipe. When the upper mold 100 and the lower mold 200 are closed, the upper mold 100 presses the second pressure member 620, so that the liquid medium inside the second pressure member 620 flows into the first pressure member 610, causing the output end of the first pressure member 610 to lift the cutting knife 500, so that the cutting knife 500 inserts into the upper mold 100, and the first spring 624 is compressed. When the upper mold 100 and the lower mold 200 are demolded, the first spring 624 lifts the second piston 622, causing a negative pressure to be generated between the second pressure chambers 621, and the liquid medium flows into the second pressure member 620. The first pressure member 610 controls the cutting knife 500 to retract, so as to push the liquid medium inside the first pressure member 610 to flow into the second pressure member 620, and the flow port 510 cuts the material at the injection molding runner 104.

[0062] Specifically, as Figure 4 shown, in this embodiment, the first pressure member 610 includes a first pressure chamber 611, a first piston 612, and a tool holder shaft 613. The first pressure chamber 611 is a closed cavity. For example, the first pressure chamber 611 is composed of a closed cover and a pressure pipe to form a closed pressure chamber. The first piston 612 is slidably connected within the first pressure chamber 611. A piston ring is provided on the outer side of the first piston 612. The piston ring can be a metal ring or a rubber ring. The tool holder shaft 613 is a rod-shaped structure. One end of the tool holder shaft 613 passes through the end of the first pressure chamber 611 and is connected to the cutting knife 500.

[0063] The second pressure member 620 includes a second pressure chamber 621, a second piston 622, and a pressure shaft 623. The structure of the second pressure chamber 621 is the same as that of the first pressure chamber 611. The second piston 622 is slidably connected within the second pressure chamber 621. The pressure shaft 623 has a round rod structure. The pressure shaft 623 passes through the end of the second pressure chamber 621 and the lower mold 200 and is disposed between the upper mold 100 and the lower mold 200. The axis of the pressure shaft 623 is arranged along the mold closing direction of the upper mold 100. The first spring 624 is located on the side of the second piston 622 facing away from the pressure shaft 623. When the upper mold 100 and the lower mold 200 are closed, the first spring 624 is compressed.

[0064] The pressure pipe is a non-elastic pipe, such as a copper pipe, a plastic pipe, etc. The pressure pipe is connected to the first pressure chamber 611 and the second pressure chamber 621 through pipe connectors.

[0065] As a preferred implementation mode in this embodiment, the blade driving unit 600 further includes a buffer cylinder 630. The buffer cylinder 630 is located on the pressure pipe. The buffer cylinder 630 is in communication with the pressure pipe, as Figure 3 shown. The buffer cylinder 630 includes a buffer chamber 631, a buffer piston 632, and a second spring 635. Constant pressure holes 633 and buffer holes 634 are respectively provided at both ends of the buffer chamber 631. The buffer hole 634 is connected to the pressure pipe through a tee pipe. The second spring 635 is located between the constant pressure hole 633 and the buffer piston 632. The second spring 635 is located inside the buffer chamber 631. When the second pressure member 620 pushes the liquid medium to flow towards the first pressure member 610, the liquid medium will also flow into the buffer cylinder 630, thereby preventing the pressure in the first pressure member 610 from being too high. The constant pressure hole 633 is used to communicate the outside with the buffer chamber 631.

[0066] In this embodiment, the first pressure member 610, the second pressure member 620, and the buffer cylinder 630 are fixedly connected to the bottom shell 230 by screws.

[0067] Embodiment 2

[0068] As another embodiment of the present invention, the difference between this embodiment and Embodiment 1 is that the injection mold further includes:

[0069] Exhaust assembly 700, the exhaust assembly 700 includes an exhaust pipe 710, the exhaust pipe 710 is connected to the exhaust hole 103, an intake valve 720 and an exhaust valve 730 are respectively arranged at two ends of the exhaust passage, the intake valve 720 is connected to a gas source, and the gas source is used to inflate the upper mold cavity 101 to improve the demolding speed.

[0070] The terms used in the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a", "the", and "said" used in the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0071] It should be understood that although the terms first, second, third, etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".

[0072] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold for improving the manufacturing efficiency of silicone products, comprising an upper mold and a lower mold, wherein the upper mold is provided with a plurality of upper mold cavities, and the lower mold is provided with a plurality of lower mold cavities corresponding to the upper mold cavities one by one, and adjacent upper mold cavities are connected through injection flow channels, characterized in that: Also includes: A cutting knife, the cutting knife is located on the lower mold, and a flow channel opening having the same shape as the cross section of the injection flow channel is provided on the cutting knife. When the cutting knife is inserted into the upper mold, the flow channel opening coincides with the injection flow channel; A blade driving unit is fixedly connected to the lower mold. When the upper mold and the lower mold are closed, the blade driving unit drives the cutting knife to be inserted into the upper mold. When the upper mold and the lower mold are separated, the blade driving unit drives the cutting knife to be retracted into the lower mold.

2. The injection mold for improving the manufacturing efficiency of silicone products according to claim 1, characterized in that: The blade driving unit comprises: A first pressure piece, used to lift the cutting knife, wherein the first pressure piece is filled with a liquid medium; A second pressure piece, the second pressure piece is connected to the first pressure piece through a pressure tube, the second pressure piece includes a second pressure chamber, a second piston, a pressure shaft and a first spring, the second piston is slidably connected in the second pressure chamber, one end of the pressure shaft is fixedly connected to the second piston, and the other end passes through the end of the second pressure chamber and is arranged between the upper mold and the lower mold, the side of the second piston away from the pressure shaft is filled with liquid medium, the first spring is located on the inner side of the second pressure chamber, and the first spring is located on the side of the second piston away from the pressure shaft, the two pressure chambers are connected to the first pressure piece through a pressure tube, and the liquid medium flows inside the first pressure piece and the second pressure piece through the pressure tube.

3. The injection mold for improving the manufacturing efficiency of silicone products according to claim 2, characterized in that: The first pressure member comprises: A first pressure chamber, wherein the first pressure chamber is a closed chamber and is connected to the second pressure chamber; a first piston, the first piston being slidably connected in the first pressure chamber; The tool seat shaft is a rod-shaped structure, one end of which is fixedly connected to the first piston, and the other end passes through the end of the first pressure chamber and is fixedly connected to the cutting knife.

4. The injection mold for improving the manufacturing efficiency of silicone products according to claim 2, characterized in that: The blade drive unit further includes: A buffer cylinder, the buffer cylinder is located on the pressure tube, the buffer cylinder is connected to the pressure tube, the buffer cylinder includes a buffer chamber, a buffer piston and a second spring, constant pressure holes and buffer holes are respectively provided at both ends of the buffer chamber, the buffer hole is connected to the pressure tube, the second spring is located between the constant pressure hole and the buffer piston, the second spring is located inside the buffer chamber, and the constant pressure hole is connected to the outside.

5. The injection mold for improving the manufacturing efficiency of silicone products according to any one of claims 1 to 4, characterized in that: A vent hole is also provided on a side of the upper mold away from the lower mold, and the vent hole is located at the top of the upper mold cavity.

6. The injection mold for improving the manufacturing efficiency of silicone products according to any one of claims 1 to 4, characterized in that: The upper mold comprises an outer mold body and an inner mold body, the upper mold cavity is located in the inner mold body, the inner mold body is fixedly connected to the upper mold, and the injection mold further comprises: A cooling unit is used to quickly cool the inner mold body, and the cooling unit is located between the inner mold body and the outer mold body.

7. The injection mold for improving the manufacturing efficiency of silicone products according to claim 6, characterized in that: A first spiral groove is provided on the inner wall of the outer mold body that cooperates with the inner mold body, and a second spiral groove is provided on the outer wall of the inner mold body that cooperates with the outer mold body. When the outer mold body is installed on the inner mold body, the first spiral groove and the second spiral groove form a spiral waterway, and the first spiral groove and the second spiral groove are both double helix structures, and one end of the double helix structure is connected.

8. The injection mold for improving the manufacturing efficiency of silicone products according to claim 7, characterized in that: The injection mold further comprises: A heating unit is used to heat the upper mold cavity, and the heating unit is located between the inner mold body and the outer mold body.

9. The injection mold for improving the manufacturing efficiency of silicone products according to claim 5, characterized in that: The injection mold further comprises: An exhaust component includes an exhaust pipe connected to the exhaust hole, an air inlet valve and an exhaust valve are respectively provided at both ends of the exhaust duct, the air inlet valve is connected to an air source, and the air source is used to inflate air into the upper mold cavity.

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