Plastic product production equipment and production process thereof

Abstract

The present invention discloses a plastic product production equipment and a production process thereof, wherein the plastic product production equipment comprises: a machine base, an injection molding device, a fixed mold, a movable mold and an isolation component, wherein the fixed mold and the movable mold are arranged on the machine base, and the isolation component is located between the fixed mold and the movable mold. A mold cavity is provided on both the fixed mold and the movable mold, and the injection molding device is used to inject raw materials into the mold cavity of the movable mold. The isolation component comprises a first partition and a second partition, wherein both the first partition and the second partition are slidably provided on the machine base through a bracket, an elastic member is provided between the first partition and the machine base, and an elastic member is also provided between the second partition and the machine base. Both the first partition and the second partition are provided with flow guide holes, and the two flow guide holes are aligned with each other; the isolation component has two states of separation and bonding. The plastic product production equipment and the production process thereof can form multiple complete mold cavities in a single mold closing process, thereby increasing the number of products manufactured in a single mold closing process and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of plastic production, and in particular to a plastic product production device and a production process thereof. Background Art

[0002] Plastic products are usually manufactured by injection molding, which is a production method in which the rubber material is directly injected from the barrel into the mold for vulcanization. It has the advantages of saving raw materials, reducing costs, and improving production efficiency, and has been widely used.

[0003] Existing injection molding production equipment generally includes a fixed mold and a movable mold. During injection molding, the fixed mold and the movable mold are pressed together (molded) to form a complete mold cavity, and the rubber material is injected into the mold cavity, and then cooled to obtain a plastic product. However, the existing injection molding production equipment can only form a complete mold cavity each time the mold is closed, and the products produced are limited, resulting in low production efficiency.

[0004] Therefore, how to design a plastic product production equipment and its production process so that it can form multiple complete mold cavities in one mold closing process, thereby increasing the number of products manufactured in a single mold closing process and improving production efficiency, is a technical problem that technicians in this field need to solve. Summary of the invention

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a plastic product production equipment and a production process thereof, so that it can form multiple complete mold cavities in one mold closing process, thereby increasing the number of products manufactured in a single mold closing process and improving production efficiency.

[0006] The objective of the present invention is achieved through the following technical solutions:

[0007] A plastic product production equipment, comprising: a machine base, an injection molding device, a fixed mold, a movable mold and an isolation component, wherein the fixed mold and the movable mold are arranged on the machine base, the injection molding device is arranged on one side of the movable mold, and the isolation component is located between the fixed mold and the movable mold;

[0008] The fixed mold and the movable mold are both provided with mold cavities, and the injection molding device is used to inject molten raw materials into the mold cavity of the movable mold;

[0009] The isolation assembly includes a first partition and a second partition, the first partition and the second partition are both slidably arranged on the base through a bracket, an elastic member is arranged between the first partition and the base, and an elastic member is also arranged between the second partition and the base;

[0010] The first partition plate and the second partition plate are both provided with flow-conducting holes, and the two flow-conducting holes are aligned with each other;

[0011] The isolation component has two states: separation and bonding. When the mold is opened, the isolation component is in a separation state, and a separation gap is formed between the first partition plate and the second partition plate; when the mold is closed, the isolation component is in a bonding state, the first partition plate and the second partition plate are bonded to each other, and the two are clamped between the fixed mold and the movable mold, and the guide hole connects the mold cavity of the fixed mold and the mold cavity of the movable mold.

[0012] In one embodiment, the injection molding device includes: a feed pipe, an extrusion chamber and a pressure module, the feed pipe is connected to the extrusion chamber, the feed pipe is used to introduce the raw material into the extrusion chamber, and the pressure module is used to inject the raw material in the extrusion chamber into the mold cavity of the movable mold.

[0013] In one of the embodiments, a heating module is provided on the feeding pipe.

[0014] In one of the embodiments, a glue injection channel is provided on the movable mold, and the glue injection channel connects the extrusion chamber and the mold cavity of the movable mold.

[0015] In one embodiment, the bracket includes a guide column and a connecting guide seat, the guide column is slidably arranged on the machine base through the elastic member, the connecting guide seat is installed on the end of the guide column, and the first partition plate and the second partition plate are installed on the connecting guide seat.

[0016] In one embodiment, the first partition plate is provided with a T-shaped ridge, and the connecting guide seat is provided with a sliding groove adapted to the T-shaped ridge;

[0017] The base is provided with an offset driving module, which is drivingly connected to the first partition plate. The offset driving module drives the first partition plate to be offset relative to the second partition plate, thereby causing the two flow guide holes to be misaligned with each other.

[0018] In one of the embodiments, a bell-mouth structure is provided in the flow-conducting hole, and when the molds are closed, the bell-mouth structure of the first partition plate and the bell-mouth structure of the second partition plate fit together.

[0019] A plastic product production process is implemented based on the above-mentioned plastic product production equipment, and the steps include:

[0020] Step 1, placing the raw material into the injection molding device and heating it to a molten state;

[0021] Step 2: closing the mold, the first partition plate is preferentially attached to the second partition plate, and then the fixed mold and the movable mold clamp the isolation component in the middle, and the mold cavity of the fixed mold is connected with the mold cavity of the movable mold through the guide hole;

[0022] Step 3, the injection molding device injects the raw material into the mold cavity of the movable mold, and the raw material fills the two mold cavities and the guide holes;

[0023] Step 4: opening the mold, the fixed mold and the movable mold are separated from the isolation assembly first to realize product demoulding; then the first partition plate is separated from the second partition plate, so that the two products originally connected by the guide hole are cut apart;

[0024] Step five, taking away the two products attached to the first partition and the second partition respectively.

[0025] In summary, the plastic product production equipment and production process of the present invention can form multiple complete mold cavities in one mold closing process, thereby increasing the number of products manufactured in a single mold closing process and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of the plastic product production equipment of the present invention;

[0028] Figure 2 It is a schematic plan view of the plastic product production equipment of the present invention;

[0029] Figure 3 for Figure 1 An exploded schematic diagram of a plastic product production facility shown;

[0030] Figure 4 for Figure 3 A partial cross-sectional view of the fixed mold, movable mold and isolation assembly shown;

[0031] Figure 5 It is a schematic diagram of the matching relationship between the fixed mold, the movable mold and the isolation component in the initial state;

[0032] Figure 6 It is a schematic diagram of the states of the fixed mold, the movable mold and the isolation component during the mold closing process;

[0033] Figure 7 It is a schematic diagram of the fixed mold, movable mold and isolation components when the mold is closed;

[0034] Figure 8 is a schematic diagram of the structure of the first partition plate and the bracket;

[0035] Fig. 9 It is a partial cross-sectional view of the first partition and the second partition. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly understood.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] The present invention provides a plastic product production device 10, such as Figure 1 and Figure 2 As shown, it includes: a machine base 100, an injection molding device 200, a fixed mold 300, a movable mold 400 and an isolation component 500. The fixed mold 300 and the movable mold 400 are arranged on the machine base 100, the injection molding device 200 is arranged on one side of the movable mold 400, and the isolation component 500 is located between the fixed mold 300 and the movable mold 400. The fixed mold 300 and the movable mold 400 are both provided with a mold cavity 401 (such as Figure 4 As shown), when in use, the injection molding device 200 is used to inject molten raw materials into the mold cavity 401 of the movable mold 400.

[0040] like Figure 2 and Figure 3 As shown, the isolation assembly 500 includes a first partition plate 510 and a second partition plate 520. The first partition plate 510 and the second partition plate 520 are both slidably disposed on the base 100 through a bracket 530. An elastic member (not shown) is disposed between the first partition plate 510 and the base 100, and an elastic member is also disposed between the second partition plate 520 and the base 100.

[0041] like Figure 4As shown, the first partition plate 510 and the second partition plate 520 are both provided with flow-conducting holes 501, and the two flow-conducting holes 501 are aligned with each other. The isolation assembly 500 has two states: separation and bonding. When the mold is opened, the isolation assembly 500 is in a separation state, and a separation gap 502 is formed between the first partition plate 510 and the second partition plate 520; when the mold is closed, the isolation assembly 500 is in a bonding state, and the first partition plate 510 and the second partition plate 520 are bonded to each other, and the two are clamped between the fixed mold 300 and the movable mold 400, and the flow-conducting holes 501 connect the mold cavity 401 of the fixed mold 300 with the mold cavity 401 of the movable mold 400.

[0042] In this embodiment, if Figure 3 As shown, the bracket 530 includes a guide column 531 and a connecting guide seat 532. The guide column 531 is slidably arranged on the machine base 100 through an elastic member. The connecting guide seat 532 is installed on the end of the guide column 531. The first partition plate 510 and the second partition plate 520 are installed on the connecting guide seat 532.

[0043] In this embodiment, if Figure 3 As shown, the injection molding device 200 includes: a feed pipe 210, an extrusion chamber 220 and a pressure module 230. The feed pipe 210 is connected to the extrusion chamber 220, and the feed pipe 210 is used to introduce the raw material into the extrusion chamber 220. The pressure module 230 is used to inject the raw material in the extrusion chamber 220 into the mold cavity 401 of the movable mold 400.

[0044] Preferably, Figure 3 As shown, a heating module 240 is provided on the feed pipe 210. The heating module 240 is used to heat the solid raw material to a molten state so as to be subsequently injected into the mold cavity 401. Of course, the heating module 240 can also be arranged outside the extrusion chamber 220, so as to heat the raw material to a molten state in the extrusion chamber 220.

[0045] Preferably, a glue injection channel 402 (such as Figure 5 As shown in the figure), the injection channel 402 connects the extrusion chamber 220 and the mold cavity 401 of the movable mold 400.

[0046] In combination with the above structure, the working principle of the plastic product production equipment 10 of the present invention is explained below. Please refer to Figure 5 , Figure 6 and Figure 7 :

[0047] Initially, the first partition plate 510 and the second partition plate 520 are far apart, and there is a separation gap 502 between them. Also, under the action of the elastic member, there is a certain distance between the first partition plate 510 and the fixed mold 300, and there is also a certain distance between the second partition plate 520 and the movable mold 400;

[0048] During operation, first, the staff adds solid raw material particles into the feed pipe 210, and then introduces them into the extrusion chamber 220 after heating them to a molten state. Then, the mold is closed, and the movable mold 400 and the second partition 520 gradually approach the fixed mold 300 and the first partition 510 under the push of the injection molding device 200. The second partition 520 will preferentially contact and fit with the first partition 510 (the separation gap 502 disappears, as shown in FIG. Figure 6 As the injection molding device 200 continues to advance, the first partition plate 510 overcomes the elastic force and contacts the fixed mold 300, and the second partition plate 520 overcomes the elastic force and contacts the movable mold 400, that is, the first partition plate 510 and the second partition plate 520 are clamped between the fixed mold 300 and the movable mold 400 (as shown in FIG. Figure 7 As shown). In this way, with the partition of the first partition 510 and the second partition 520, the mold cavity 401 of the fixed mold 300 and the mold cavity 401 of the movable mold 400 form two relatively independent spaces, and the two mold cavities 401 are connected through the guide hole 501. After the mold is closed, the injection molding device 200 injects the molten raw material into the mold cavity 401 of the movable mold 400, and the raw material will enter the mold cavity 401 of the fixed mold 300 along the guide hole 501 under the action of pressure, and then fill the two mold cavities 401. The air in the meantime will be discharged through the vent holes (not shown) on the first partition 510 and the second partition 520. After cooling, the desired products are formed in the two mold cavities 401 respectively, and due to the existence of the guide hole 501, a connecting section will be formed between the two products;

[0049] Then the mold is separated, and the movable mold 400 and the second partition plate 520 begin to move in the opposite direction to reset. During the reset period, the fixed mold 300 and the movable mold 400 will be separated from the isolation component 500 first (such as Figure 6 As shown in FIG. 4 ), at this time, the mold cavity 401 is separated from the first partition plate 510 and the second partition plate 520, and the product will be separated from the two mold cavities 401 (demolded), and at this time, the first partition plate 510 and the second partition plate 520 are still in contact with each other, and there is still a connecting section between the products on both sides of the isolation component 500; as the movable mold 400 continues to move, the connecting section of the product will be broken, and then the second partition plate 520 and the first partition plate 510 will be separated from each other (as shown in FIG. 4 ). Figure 5 As shown in FIG. 1 ), the products on both sides become independent individuals. At this point, the plastic product production equipment 10 returns to the initial state.

[0050] Compared with the prior art, the plastic product production equipment 10 of the present invention can form two relatively independent mold cavities 401 in a single mold closing process, thereby increasing the number of products manufactured in a single mold closing process. Specifically, the production equipment of the prior art can usually only form a complete mold cavity in a single mold closing process, while in the present invention, the fixed mold 300 and the movable mold 400 will clamp the first partition 510 and the second partition 520 when the mold is closed, so that the mold cavities 401 of the fixed mold 300 and the movable mold 400 are relatively independently separated by the first partition 510 and the second partition 520, so that the two mold cavities 401 can produce two products during injection molding. Moreover, different from the prior art, in the present invention, the two mold cavities 401 of the fixed mold 300 and the movable mold 400 can be of different shapes, so that different products can be produced in the same mold closing process.

[0051] It is worth emphasizing that, in order to realize the subsequent demoulding and removal of the product, the isolation assembly 500 of the present invention is specially designed with a first partition 510 and a second partition 520. The reason for this design is the following considerations: although a single isolation plate can also serve the purpose of isolating the two mold cavities 401, when the mold is opened, the design of "one isolation plate" will cause the products on both sides of the isolation plate to always rely on the middle connecting section to be connected together, and the staff needs to manually cut the connecting section to remove the product, which is not conducive to improving work efficiency. In addition, the temperature of the product that has just been injection molded is high, and it is easy to get burned when the product is manually removed, which poses a safety hazard. The present invention adopts the design of "two isolation plates", namely the first partition 510 and the second partition 520. In this way, during the mold opening process, the separation of the first partition 510 and the second partition 520 will cause the connecting section in the middle of the product to be pulled off, so that there is no need to cut it manually, and the products on both sides can be easily removed. In this way, both work efficiency can be improved and safety hazards during manual material removal can be reduced.

[0052] In other embodiments, Figure 8 As shown, the first partition plate 510 is provided with a T-shaped ridge 511, and the connecting guide seat 532 is provided with a slide groove (not shown) adapted to the T-shaped ridge 511. The base 100 is provided with an offset drive module 110 (as shown in FIG. Figure 3 As shown in FIG. 1 ), the offset drive module 110 is connected to the first partition 510, and the offset drive module 110 drives the first partition 510 to be offset relative to the second partition 520, so that the two flow-conducting holes 501 are offset from each other. In this way, during the mold opening process, the drive module 110 drives the first partition 510 to move, so that the two flow-conducting holes 501 are offset and form a shear force to cut off the connecting section of the product, so that the products on both sides of the isolation assembly 500 can be separated smoothly.

[0053] Preferably, a bell mouth structure 503 (such as Fig. 9). When the mold is closed, the bell-mouth structure 503 of the first partition 510 and the bell-mouth structure 503 of the second partition 520 fit each other. The design of the bell-mouth structure 503 can reduce the diameter of the connection between the two flow-guiding holes 501, thereby reducing the diameter of the product in the middle connection section, which can be more easily cut or pulled off during the mold opening process.

[0054] The present invention further provides a plastic product production process, which is implemented based on the above-mentioned plastic product production equipment 10, and the steps include:

[0055] Step 1: Place the raw material into the injection molding device 200 and heat it to a molten state. The solid granular raw material is introduced into the extrusion chamber 220 from the feed pipe 210, and then heated to a molten state in the extrusion chamber 220;

[0056] Step 2: close the mold, the first partition 510 is preferentially attached to the second partition 520 (such as Figure 6 As shown), the fixed mold 300 and the movable mold 400 then clamp the isolation assembly 500 in the middle (as shown Figure 7 As shown), the mold cavity 401 of the fixed mold 300 is connected with the mold cavity 401 of the movable mold 400 through the guide hole 501;

[0057] Step 3: The injection molding device 200 injects the raw material into the mold cavity 401 of the movable mold 400 , and the raw material fills the two mold cavities 401 and the guide holes 501 ;

[0058] Step 4: Open the mold. The fixed mold 300 and the movable mold 400 are separated from the isolation assembly 500 first to realize product demoulding. Then the first partition 510 and the second partition 520 are separated, so that the two products originally connected by the flow-conducting hole 501 are pulled apart. In this way, two products can be obtained at the same time;

[0059] Step 5: Take away the two products attached to the first partition plate 510 and the second partition plate 520 respectively.

[0060] The above-mentioned use of the offset drive module 110 to form a shear force to cut the connecting section of the product can be placed in step four. Before the first partition 510 and the second partition 520 are formally separated, the two are staggered from each other so that after the connecting section of the product is cut off, the first partition 510 and the second partition 520 are formally separated. This can better achieve the separation and independence of the products on both sides of the isolation component 500.

[0061] Compared with the existing production process, the plastic product production process of the present invention can utilize two mold cavities 401 to perform production simultaneously, and can also separate the connected products automatically after production.

[0062] In summary, the plastic product production equipment 10 and the production process thereof of the present invention enable it to form multiple complete mold cavities in one mold closing process, thereby increasing the number of products manufactured in a single mold closing process and improving production efficiency.

[0063] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A plastic product production equipment, characterized in that: include: A machine base, an injection molding device, a fixed mold, a movable mold and an isolation component, wherein the fixed mold and the movable mold are arranged on the machine base, the injection molding device is arranged on one side of the movable mold, and the isolation component is located between the fixed mold and the movable mold; The isolation assembly includes a first partition and a second partition, the first partition and the second partition are both slidably arranged on the machine base through a bracket, an elastic member is arranged between the first partition and the machine base, and an elastic member is also arranged between the second partition and the machine base; the first partition and the second partition are both provided with a flow-conducting hole, and the two flow-conducting holes are aligned with each other; The fixed mold and the movable mold are both provided with mold cavities, and the injection molding device is used to inject molten raw materials into the mold cavity of the movable mold, and the air in the process is discharged through the vent holes on the first partition plate and the second partition plate; The isolation component has two states: separation and adhesion. When the mold is opened, the isolation component is in the separation state, a separation gap is formed between the first partition and the second partition, the fixed mold and the movable mold are preferentially separated from the isolation component to realize product demoulding, and then the first partition is separated from the second partition, so that the two products originally connected by the guide hole are cut apart; when the mold is closed, the isolation component is in the adhesion state, the first partition and the second partition are adhered to each other, and the two are clamped between the fixed mold and the movable mold, and the guide hole connects the mold cavity of the fixed mold with the mold cavity of the movable mold; The bracket includes a guide column and a connecting guide seat, the guide column is slidably arranged on the machine base through the elastic member, the connecting guide seat is installed at the end of the guide column, and the first partition plate and the second partition plate are installed on the connecting guide seat; The first partition plate is provided with a T-shaped ridge, and the connecting guide seat is provided with a sliding groove adapted to the T-shaped ridge; The base is provided with an offset driving module, the offset driving module is drivingly connected to the first partition, and the offset driving module drives the first partition to be offset relative to the second partition, so that the two guide holes are offset from each other; A bell-mouth structure is provided in the flow-conducting hole, and when the mold is closed, the bell-mouth structure of the first partition plate and the bell-mouth structure of the second partition plate are fitted with each other.

2. The plastic product production equipment according to claim 1, characterized in that: The injection molding device includes: a feed pipe, an extrusion chamber and a pressure module. The feed pipe is connected to the extrusion chamber and is used to introduce the raw material into the extrusion chamber. The pressure module is used to inject the raw material in the extrusion chamber into the mold cavity of the movable mold.

3. The plastic product production equipment according to claim 2, characterized in that: The feeding pipe is provided with a heating module.

4. The plastic product production equipment according to claim 2, characterized in that: The movable mold is provided with a glue injection channel, and the glue injection channel communicates with the extrusion chamber and the mold cavity of the movable mold.

5. A plastic product production process, characterized in that: The plastic product production equipment according to any one of claims 1 to 4 is implemented, and the steps include: Step 1, placing the raw material into the injection molding device and heating it to a molten state; Step 2: closing the mold, the first partition plate is preferentially attached to the second partition plate, and then the fixed mold and the movable mold clamp the isolation component in the middle, and the mold cavity of the fixed mold is connected with the mold cavity of the movable mold through the guide hole; Step 3, the injection molding device injects the raw material into the mold cavity of the movable mold, and the raw material fills the two mold cavities and the guide holes; Step 4: opening the mold, the fixed mold and the movable mold are separated from the isolation assembly first to realize product demoulding; then the first partition plate is separated from the second partition plate, so that the two products originally connected by the guide hole are cut apart; Step five, taking away the two products attached to the first partition and the second partition respectively.

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