Injection molding machine and organic plate product automatic production line suitable for organic plate

Abstract

The application relates to the field of injection molding equipment, and discloses an injection molding machine suitable for organic plates and an automatic production line of organic plate products; the injection molding machine suitable for the organic plates comprises a rack, a shooting table, a mold and a mold locking mechanism for driving the mold to open and close are arranged on the rack, and an oven is further arranged on the mold locking mechanism; the oven is arranged on the mold locking mechanism and serves as a component part of the injection molding machine, so that the transfer distance of a workpiece to be processed from the oven to the mold can be effectively shortened, heat loss of the workpiece to be processed can be reduced, and the bonding strength between the workpiece to be processed and plastic during injection molding can be ensured.

Description

Technical Field

[0001] This invention relates to the field of injection molding equipment, and in particular to an injection molding machine suitable for acrylic sheets and an automated production line for acrylic sheet products. Background Technology

[0002] An injection molding machine, also known as an injection molding machine or injection molding machine, is a major molding equipment used to make various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molding dies.

[0003] In the field of injection molding, some finished parts need to be preheated in an oven before being molded and injected by an injection molding machine to produce finished parts. Such parts are like acrylic sheets. Acrylic sheets are composite material sheets made of continuous fibers and thermoplastic resins that provide reinforcement. Acrylic sheet parts, which are mainly composed of acrylic sheets, need to go through processes such as preheating, molding, and injection molding during production. The preheating process is generally achieved by an oven, while the molding and injection molding processes are achieved by an injection molding machine.

[0004] In existing technologies, the mold plate size and injection unit volume of a general injection molding machine are related; a large mold plate corresponds to a large clamping force and a large injection unit. However, acrylic sheet parts generally only require injection molding of rib structures, which usually only requires a small amount of plastic and a small clamping force. But because acrylic sheet parts are relatively large, a large mold plate is needed to hold the mold, which leads to the selection of a large-tonnage injection molding machine, resulting in excessively high overall costs. Moreover, the oven and injection molding machine are generally set up separately, with a certain distance between them. The acrylic sheet is preheated in the oven before being transferred to the injection molding machine to complete the production of the acrylic sheet parts. In this method of producing acrylic sheet parts, because there is a certain distance between the oven and the injection molding machine, the acrylic sheet loses heat during the transfer process, resulting in a temperature drop. The longer the distance between the oven and the injection molding machine, the more heat is lost. The decrease in acrylic sheet temperature will affect the bonding strength between the acrylic sheet and the plastic during the injection molding process. Summary of the Invention

[0005] The purpose of this invention is to reduce heat loss from the workpiece and ensure the bonding strength between the workpiece and the plastic during injection molding.

[0006] To achieve the above objectives, the present invention provides an injection molding machine suitable for organic boards, including a frame, an injection unit, a mold, and a mold locking mechanism for driving the mold to open and close, and also including an oven, which is mounted on the mold locking mechanism.

[0007] In a specific embodiment of the present invention, the mold-locking mechanism includes a fixed template, a movable template, a tie rod connecting the fixed template and the movable template, and a drive component for driving the movable template to move.

[0008] The mold includes a fixed mold fixed on a fixed template and a movable mold fixed on a movable template;

[0009] The oven is mounted on the fixed template.

[0010] In a specific embodiment of the present invention, the oven includes a heating chamber with an opening for the workpiece to be processed to enter and exit; heating components are disposed on both sides of the opening inside the heating chamber.

[0011] In a specific embodiment of the present invention, the heating component is an infrared heating component.

[0012] In a specific embodiment of the present invention, both the fixed template and the movable template are rectangular, and there are four tie rods, which are arranged at the corners of the fixed template and the movable template respectively; the clamping force of the clamping mechanism is A Newtons, and the area of ​​the imaginary rectangle formed by the line connecting the four tie rods is B square millimeters, wherein the ratio of A to B is: A / B≤3.

[0013] The present invention also proposes an automated production line for organic board products, including an injection molding machine suitable for organic boards as described above;

[0014] It also includes a storage rack for placing parts to be processed and a robotic arm module for transferring the parts to be processed on the storage rack to an injection molding machine to process the parts into finished products.

[0015] In a specific embodiment of the present invention, the robotic arm module includes a first robotic arm and a second robotic arm. The first robotic arm is used to transfer the workpiece to be processed from the storage rack to the second robotic arm. The second robotic arm is used to place the workpiece to be processed into an oven and then into a mold to process the workpiece into a finished product.

[0016] In a specific embodiment of the present invention, a receiving mechanism is also included; under the action of the first robotic arm, the finished part is transferred from the mold to the receiving mechanism.

[0017] In a specific embodiment of the present invention, the first robotic arm, the second robotic arm, the storage rack, and the receiving mechanism are all located on the same side of the injection molding machine.

[0018] In a specific embodiment of the present invention, the first robotic arm corresponds to the mold arrangement, and the second robotic arm corresponds to the oven arrangement.

[0019] This invention provides an injection molding machine and an automated production line for acrylic sheet products, which, compared with existing technologies, offer the following advantages:

[0020] In practical applications, the parts to be processed need to be heated to a preset temperature in an oven before being transferred to a mold for compression molding and injection molding to produce finished products. In this invention, the oven is a component of the injection molding machine and is mounted on the clamping mechanism. This effectively shortens the transfer distance of the parts from the oven to the mold, thereby reducing heat loss during the transfer process and ensuring the bonding strength between the parts and the plastic during injection molding. Moreover, since the oven is mounted on the clamping mechanism, it does not occupy the space of the machine frame, making the structure of the injection molding machine more compact. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the injection molding machine according to an embodiment of the present invention;

[0022] Figure 2 This is a structural diagram of an automated production line for organic board products according to an embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of the anti-collision beam according to an embodiment of the present invention.

[0024] In the diagram, 1. Frame; 2. Injection stand; 3. Mold; 4. Mold locking mechanism; 41. Fixed template; 42. Moving template; 43. Tie rod; 44. Drive assembly; 5. Oven; 6. Storage rack; 7. Robot module; 71. First robot; 72. Second robot; 8. Receiving mechanism; A. Injection molding machine; B. Anti-collision beam. Detailed Implementation

[0025] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0026] like Figure 1 As shown, an injection molding machine A suitable for organic boards according to the present invention includes a frame 1, on which an injection unit 2, a mold 3 and a mold locking mechanism 4 for driving the mold 3 to open and close are provided, and an oven 5 is also included, which is disposed on the mold locking mechanism 4.

[0027] In practical applications, the workpiece needs to be heated to a preset temperature in the oven 5 before being transferred to the mold 3 for compression molding and injection molding to produce the finished product. In this embodiment, the oven 5 is set on the clamping mechanism 4, which can effectively shorten the transfer distance of the workpiece from the oven 5 to the mold 3, thereby reducing the heat loss of the workpiece during the transfer process and ensuring the bonding strength between the workpiece and the plastic during injection molding. Moreover, the oven 5 is set on the clamping mechanism 4, which does not occupy the space of the frame 1, making the structure of the injection molding machine A more compact.

[0028] Specifically, the injection station 2 is used to inject molten plastic into the mold 3 to complete the injection molding process of the workpiece; the mold 3 is used to mold the workpiece to form a preset shape. The molding process is as follows: in the initial state, the mold 3 is in the open state under the action of the mold locking mechanism 4. After the workpiece is placed into the mold 3, the mold 3 closes under the action of the mold locking mechanism 4, thereby pressing the workpiece into the preset shape.

[0029] In this embodiment, the mold-locking mechanism 4 includes a fixed template 41, a movable template 42, a tie rod 43 connecting the fixed template 41 and the movable template 42, and a drive assembly 44 for driving the movable template 42 to move; the drive assembly 44 is a drive assembly 44 with a hydraulic cylinder as the drive source.

[0030] When the drive assembly 44 drives the moving template 42 to move, the moving template 42 moves along the axial direction of the tie rod 43 to move closer to the fixed template 41 to close the mold 3 or move away from the fixed template 41 to open the mold 3.

[0031] The mold 3 includes a fixed mold fixed on a fixed template 41 and a movable mold fixed on a movable template 42; the driving component 44 drives the movable template 42 to move so that the fixed mold and the movable mold close or open.

[0032] The oven 5 is mounted on the fixed template 41. The oven 5 does not need to move with the moving template 42, and the structure is simple and stable.

[0033] The oven 5 includes a heating chamber with an opening for the workpiece to enter and exit; the heating chamber is equipped with heating components arranged on both sides of the opening, forming a double-sided heating structure, which can improve the heating efficiency of the workpiece.

[0034] Specifically, the heating component is an infrared heating component, such as an infrared heating lamp.

[0035] like Figure 2 As shown, an automated production line for organic board products according to the present invention includes the injection molding machine A as described above;

[0036] The automated production line for organic board products also includes a storage rack 6 for placing parts to be processed, and a robotic arm module 7 for transferring the parts to be processed on the storage rack 6 to the injection molding machine A to process the parts into finished products; the transfer of parts to be processed is accomplished by the robotic arm module 7, which has a high degree of automation.

[0037] Specifically, the robotic arm module 7 includes a first robotic arm 71 and a second robotic arm 72. The first robotic arm 71 is used to transfer the workpiece to be processed on the storage rack 6 to the second robotic arm 72. The second robotic arm 72 is used to put the workpiece to be processed into the oven 5 and then into the mold 3 to process the workpiece into a finished product.

[0038] The robotic arm module 7 can also be a single robotic arm, which can perform the processing of the workpiece. This embodiment does not limit this. Since there is a certain span between the storage rack 6, the oven 5, and the mold 3, in this embodiment, the robotic arm module 7 is preferably a first robotic arm 71 and a second robotic arm 72, which can reduce the arm length of a single robotic arm. At the same time, the cooperation of the two can improve the processing efficiency.

[0039] It also includes a receiving mechanism 8; under the action of the first robotic arm 71, the finished part is transferred from the mold 3 to the receiving mechanism 8;

[0040] Both the free ends of the first robotic arm 71 and the second robotic arm 72 are equipped with grippers;

[0041] In the actual processing, the first robotic arm 71 grabs the workpiece to be processed at the storage rack 6 and transfers it to the second robotic arm 72. The second robotic arm 72 transports the workpiece to the oven 5, where the oven 5 heats the workpiece to the preset temperature. The second robotic arm 72 then transports the heated workpiece to the mold 3 and positions it. The second robotic arm 72 then withdraws from the mold 3, and the mold 3 closes under the action of the mold locking mechanism 4, molding the workpiece into the preset shape. The injection unit 2 then injects plastic into the mold 3, causing the plastic to adhere to the workpiece. After undergoing injection molding, pressure holding, and cooling processes, the workpiece is formed into a finished product. Then, the mold locking mechanism 4 drives the mold 3 to open, and the first robotic arm 71 removes the finished product from the mold 3 and transports it to the receiving mechanism 8. By repeating the above process, the processing of multiple workpieces is completed.

[0042] When the workpiece is being processed, such as during injection molding, pressure holding, and cooling, the first robot arm 71 can take the workpiece from the storage rack 6 and transfer it to the second robot arm 72, thereby saving production time.

[0043] Preferably, the receiving mechanism 8 is a belt conveyor, which can transport the finished parts to the next workstation without manual handling;

[0044] The receiving mechanism 8 can also be a receiving platform, a receiving trolley, etc., but this embodiment does not limit it.

[0045] In this embodiment, the first robotic arm 71, the second robotic arm 72, the storage rack 6, and the receiving mechanism 8 are all located on the same side of the injection molding machine A;

[0046] The first robotic arm 71 is arranged to correspond to the mold 3, and the second robotic arm 72 is arranged to correspond to the oven 5, so that the first robotic arm 71 and the second robotic arm 72 can complete their respective tasks, reduce the stroke, and improve processing efficiency.

[0047] Taking acrylic sheets as an example, the size of the mold plate and the amount of glue on the injection stage of a general injection molding machine are related. A large mold plate corresponds to a large clamping force and a large injection stage. However, acrylic sheet parts generally only need to be injection molded with rib structures, which usually only requires a small amount of glue and a small clamping force. But since the products are relatively large, a large mold plate is needed to place the mold. This leads to the need to select a large-tonnage injection molding machine, which will result in an excessively high cost for the entire injection molding machine.

[0048] In the injection molding machine A described in this embodiment, both the fixed template 41 and the movable template 42 are rectangular, and there are four tie rods 43, which are arranged at the corners of the fixed template 41 and the movable template 42.

[0049] The clamping force of the clamping mechanism 4 is A Newtons, and the area of ​​the imaginary rectangle formed by the line connecting the four tie rods 43 is B square millimeters, wherein the ratio of A to B is: A / B≤3;

[0050] The injection molding machine under these conditions is a non-general-purpose injection molding machine with small tonnage clamping force and large mold plate size, which can reduce the cost of the injection molding machine.

[0051] Taking the injection molding machine A described in this embodiment, which processes an organic sheet into a car crash beam B with reinforcing ribs, as an example, ... Figure 3 As shown, the dimensions of the crash beam B are 1200X140X90mm, and its weight is 2.5Kg, which is more than 40% lighter than the steel structure crash beam B.

[0052] In the automated production line for producing the organic board products of the automotive anti-collision beam B, the size of the organic board is 1300X180X3mm, the size of the drying oven is 1600X1000mm, the first robot 71 is a 6-axis joint robot with a load capacity of 5 kg, and the second robot 72 is a 6-axis joint robot with a load capacity of 10 kg.

[0053] The clamping force of the clamping mechanism 4 of injection molding machine A is 200 tons, that is, the clamping force A is 1,961,330 Newtons; the size of the imaginary rectangle formed by the connection of the four tie rods 43 is 1500 x 800 mm, which is the size of the tie rod spacing, that is, the imaginary area B is 1,200,000 square millimeters; at this time, the ratio of A to B is 1.634; the maximum injection volume of the injection stage 2 is 500g.

[0054] A general-purpose injection molding machine with a tie rod spacing of 1500 x 800 mm typically requires a clamping force of over 1300 tons and a maximum injection volume of over 5000 g, resulting in a high overall cost. In contrast, the injection molding machine A in this embodiment has a tie rod spacing of 1500 x 800 mm, a clamping force of 200 tons, and a maximum injection volume of 500 g. Therefore, the injection molding machine A in this embodiment is a dedicated injection molding machine A suitable for processing acrylic sheets with small injection volumes, low clamping forces, and large-size templates. Its manufacturing cost can be reduced by more than 50% compared to using a general-purpose injection molding machine.

[0055] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. An injection molding machine suitable for organic boards, comprising a frame (1), wherein the frame (1) is provided with an injection unit (2), a mold (3), and a mold clamping mechanism (4) for driving the mold (3) to open and close, characterized in that, It also includes an oven (5), which is mounted on a mold-locking mechanism (4); The mold-locking mechanism (4) includes a fixed template (41), a movable template (42), a pull rod (43) connecting the fixed template (41) and the movable template (42), and a drive assembly (44) for driving the movable template (42) to move. The mold (3) includes a fixed mold fixed on a fixed template (41) and a moving mold fixed on a movable template (42); The oven (5) is mounted on the fixed template (41); The fixed template (41) and the movable template (42) are both rectangular, and there are 4 tie rods (43), which are arranged at the corners of the fixed template (41) and the movable template (42). The clamping force of the clamping mechanism (4) is A Newtons, and the area of ​​the imaginary rectangle formed by the connection of the four tie rods (43) is B square millimeters, wherein the ratio of A to B is: A / B≤3.

2. The injection molding machine for organic boards according to claim 1, characterized in that, The oven (5) includes a heating chamber with an opening for the workpiece to be processed to enter and exit; the heating chamber is provided with heating components arranged on both sides of the opening.

3. The injection molding machine for organic boards according to claim 2, characterized in that, The heating component is an infrared heating component.

4. An automated production line for organic board products, characterized in that, Including the injection molding machine (A) suitable for organic sheets as described in any one of claims 1-3; It also includes a storage rack (6) for placing the workpiece to be processed, and a robotic arm module (7) for transferring the workpiece to be processed on the storage rack (6) to the injection molding machine (A) to process the workpiece into a finished part.

5. The automated production line for organic board products according to claim 4, characterized in that, The robotic arm module (7) includes a first robotic arm (71) and a second robotic arm (72). The first robotic arm (71) is used to transfer the workpiece to be processed on the storage rack (6) to the second robotic arm (72). The second robotic arm (72) is used to put the workpiece to be processed into the oven (5) and then into the mold (3) to process the workpiece into a finished product.

6. The automated production line for organic board products according to claim 5, characterized in that, It also includes a receiving mechanism (8); under the action of the first robot (71), the finished part is transferred from the mold (3) to the receiving mechanism (8).

7. The automated production line for organic board products according to claim 6, characterized in that, The first robotic arm (71), the second robotic arm (72), the storage rack (6), and the receiving mechanism (8) are all located on the same side of the injection molding machine (A).

8. The automated production line for organic board products according to claim 7, characterized in that, The first robotic arm (71) is arranged in relation to the mold (3), and the second robotic arm (72) is arranged in relation to the oven (5).

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