Quantitative injection molding device for injection molded parts

Abstract

The utility model provides a quantitative injection molding device for injection molding parts, which relates to the technical field of injection molds and comprises an injection molding machine body, a quantitative adjusting component is fixedly connected to the top end of the injection molding machine body, a constant temperature component is slidably connected to the inner wall of the quantitative adjusting component, the quantitative adjusting component comprises a cylinder, and the bottom end of the cylinder is mounted on the injection molding machine body. And the side, away from the air cylinder, of the telescopic rod is fixedly connected with a piston, and the two sides of the top end of the injection molding machine body are fixedly connected with mounting bases correspondingly. According to the utility model, the plastic quantity is accurately controlled and injected, so that the quantity of the plastic material injected into the mold each time can be accurately controlled, the problem that the quantity of the plastic material is too large or too small in the injection molding process is avoided, and meanwhile, the temperature of the plastic material is accurately controlled in the injection molding process; the fluidity and the stability of the material in the whole injection molding process are ensured, so that the quality and the appearance of a finished product are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a quantitative injection molding device for injection molded parts. Background Art

[0002] Injection molded parts refer to plastic parts produced by injection molding. The injection molding process is the process of injecting heated molten plastic material into a mold and forming a plastic product of the desired shape after cooling. The quality and size requirements of injection molded parts are usually very strict, so it is necessary to accurately control the amount of plastic injected into the mold. The quantitative injection molding device can ensure that the amount of plastic injected each time is accurate, thereby ensuring that the size and weight of the produced plastic parts meet the requirements;

[0003] After searching, the Chinese patent announcement number: CN220031075U discloses a quantitative injection mold, including a top plate, a plurality of support legs are fixedly connected to the left side of the top of the top plate, the tops of the support legs are respectively fixedly connected to the four corners of the bottom of the feed box, the left side of the top of the feed box is fixedly connected to a fixed platform, and the top of the fixed platform is fixedly connected to a motor. In the utility model, the eccentric wheel is driven by a motor to rotate with a frequency to press down the interception plate, and the interception plate is used to intercept and block the pipe mouth of the second feed pipe, so as to control the frequency of material falling when the second feed pipe is feeding, and the blocking time when the second feed pipe is blocked can be controlled by setting the frequency of the eccentric wheel driven by the motor to rotate, which is used to change the amount of material fed, facilitate the control of the amount of material input required for injection molding, prevent uneven discharge from affecting the appearance of injection molded parts, cause material waste, and ensure the qualified rate of injection molded parts;

[0004] However, this patent only solves the problem of too much or too little material that often occurs during the injection molding process. The eccentric wheel is driven by a motor, and then the intercepting plate is driven to open the opening of the feed pipe, thereby facilitating the control of the amount of material required for injection molding. However, for injection molding production that requires high precision, it is impossible to ensure that the amount of material for each injection is completely accurate. Therefore, the utility model proposes a quantitative injection molding device for injection molded parts. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art and to provide a quantitative injection molding device for injection molded parts.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a quantitative injection molding device for injection molded parts, comprising an injection molding machine body, the top end of which is fixedly connected to a quantitative adjustment component, and the inner wall of which is slidably connected to a constant temperature component;

[0007] The quantitative adjustment component includes a cylinder, the bottom end of the cylinder is installed on the injection molding machine body, the driving end of the cylinder is fixedly connected with a telescopic rod, the side of the telescopic rod away from the cylinder is fixedly connected with a piston, the top sides of the injection molding machine body are fixedly connected with mounting seats, the top ends of the two mounting seats are fixedly connected with injection tubes, the side of the injection tube away from the cylinder is fixedly connected with a temporary storage tank, and the upper and lower sides of the temporary storage tank are fixedly connected with electronic valves.

[0008] The beneficial effect of adopting the above further solution is that the amount of plastic material injected each time can be accurately controlled by quantitatively adjusting the component to ensure that the size and quality of the product meet the requirements.

[0009] As a preferred embodiment, the constant temperature component includes a heat conductive block, both ends of the outer side of the heat conductive block are slidably connected to the inner wall of the injection molding tube, the inner wall of the heat conductive block is installed with a heat conductive wire, the four corners of the outer side of the injection molding tube are fixedly connected with fixed blocks, one side of the fixed block is rotatably connected to a rotating column, the outer side of the rotating column is fixedly connected with a screw rod, the outer side of the screw rod close to the rotating column is slidably connected with a clamping block, and the outer side of the screw rod is threadedly connected to a limiting block.

[0010] The beneficial effect of adopting the above further solution is that by adjusting the current or voltage of the heat conductive wire, the temperature of the thermostatic component can be accurately controlled to ensure a constant temperature of the plastic material during the injection molding process, thereby improving product quality and production efficiency.

[0011] As a preferred implementation manner, the top end of one of the electronic valves is fixedly connected to a storage tube, and the bottom end of the other electronic valve is fixedly connected to an injection port.

[0012] The beneficial effects of adopting the above further solution are: improving the convenience of operation and making the control of the electronic valve more efficient and reliable.

[0013] As a preferred embodiment, a support block is fixedly connected to one side of the injection port close to the temporary storage tank, and one side of the support block is fixedly connected to the injection molding machine body.

[0014] The beneficial effect of adopting the above further solution is that the weight of the injection port can be effectively supported, thereby improving the stability of the injection molding process.

[0015] As a preferred implementation, a side of the limiting block close to the fixed block is engaged with the clamping block, and a side of the clamping block away from the fixed block is engaged with the heat conducting block.

[0016] The beneficial effect of adopting the above further solution is: the position of the heat-conducting block is accurately controlled to prevent it from exceeding or deviating from the required range, thereby ensuring the accuracy and stability of temperature conduction.

[0017] As a preferred embodiment, an observation plate is fixedly connected to the outer top end of the injection tube, a scale mark is provided on the side of the observation plate away from the injection tube, and a controller is provided on one side of the injection molding machine body.

[0018] The beneficial effect of adopting the above further solution is that the stability of the production line can be improved by real-time monitoring and accurate control of the injection volume and temperature.

[0019] Compared with the prior art, the advantages and positive effects of the utility model are:

[0020] 1. The utility model is provided with a quantitative adjustment component, and the cylinder drives the telescopic rod to extend and retract, and then drives the piston to move in the temporary storage tank, so as to accurately control the amount of plastic material entering the injection tube. Through the control of the electronic valve, it is further ensured that the plastic flow and time from the temporary storage tank to the mold are strictly regulated, and the precise control and injection of the plastic amount are achieved, ensuring that the amount of plastic material injected into the mold each time can be accurately controlled, avoiding the problem of too much or too little plastic material during the injection molding process, and improving production efficiency and material utilization.

[0021] 2. In the design of the thermostatic component of the utility model, the heat conductive block distributes heat evenly through the good thermal conductivity of its material, while the thermal wire provides the necessary heat through electric current heating. When the thermal wire needs to be replaced, first rotate the limit block to disengage it from the lock on the card block, and then move the card block toward the far end of the heat conductive block. This action causes the two heat conductive blocks to slide outward along the designed track, thereby facilitating the replacement of damaged thermal conductive wires, achieving precise control of the temperature of the plastic material during the injection molding process, ensuring the fluidity and stability of the material throughout the injection molding process, thereby improving the quality and appearance of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a quantitative injection molding device for an injection molded part according to the utility model;

[0023] Figure 2 This is a structural diagram of a quantitative adjustment component of a quantitative injection molding device for an injection molded part of the utility model;

[0024] Figure 3 This is a structural diagram of a heat-conducting block in a quantitative injection molding device for an injection molded part of the utility model;

[0025] Figure 4 It is a cross-sectional view of a heat conducting block in a quantitative injection molding device for an injection molded part of the utility model;

[0026] Figure 5 The utility model is a cross-sectional view of a thermostatic component in a quantitative injection molding device for an injection molded part.

[0027] Reference numerals

[0028] 1. Injection molding machine body; 2. Quantitative adjustment component; 21. Cylinder; 22. Telescopic rod; 23. Piston; 24. Mounting seat; 25. Injection molding tube; 26. Temporary storage tank; 27. Electronic valve; 3. Constant temperature component; 31. Heat transfer block; 32. Heat transfer wire; 33. Fixed block; 34. Rotating column; 35. Screw rod; 36. Block; 37. Limit block; 4. Storage tube; 5. Support block; 6. Injection port; 7. Observation plate; 8. Scale mark; 9. Controller. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Example 1

[0031] like Figure 1-4 As shown, the utility model provides a technical solution: a quantitative injection molding device for injection molded parts, comprising an injection molding machine body 1, a quantitative adjustment component 2 is fixedly connected to the top of the injection molding machine body 1, the quantitative adjustment component 2 comprises a cylinder 21, the bottom end of the cylinder 21 is mounted on the injection molding machine body 1, the driving end of the cylinder 21 is fixedly connected to a telescopic rod 22, the side of the telescopic rod 22 away from the cylinder 21 is fixedly connected to a piston 23, both sides of the top of the injection molding machine body 1 are fixedly connected to mounting seats 24, the tops of the two mounting seats 24 are fixedly connected to injection molding tubes 25, the side of the injection molding tube 25 away from the cylinder 21 is fixedly connected to a temporary storage tank 26, the upper and lower sides of the temporary storage tank 26 are fixedly connected to electronic valves 27, the injection molding machine body 1 is responsible for heating, melting and injecting plastic materials, and the quantitative adjustment component 2 can achieve precise The input amount of plastic material is adjusted to ensure the quality and size accuracy of the injection molded parts. The cylinder 21 is responsible for providing control force and movement. The telescopic rod 22 is the driving component of the cylinder 21. It controls the movement of the piston 23 through telescopic movement. The piston 23 drives the movement of the piston 23 through the movement of the cylinder 21, thereby realizing precise control of the flow of the plastic material. The design of the mounting seat 24 helps to firmly support the injection molding tube 25 to ensure its accurate position. The injection molding tube 25 is a pipeline for conveying molten plastic material to the mold. The temporary storage tank 26 is a container for storing plastic material to be injected. It is connected to the far end of the injection molding tube 25. The upper and lower sides are fixedly connected with an electronic valve 27. By controlling the switch state of the electronic valve 27, the flow of the plastic material can be controlled to ensure that the material supply amount during the injection molding process meets the requirements;

[0032] like Figure 2As shown, the top end of one of the electronic valves 27 is fixedly connected to a storage tube 4, and the bottom end of the other electronic valve 27 is fixedly connected to an injection port 6. The storage tube 4 can provide sufficient capacity to temporarily store plastic materials to meet the needs of the injection molding process. The injection port 6 is the entrance for injecting plastic materials into the mold. Through the connection with the electronic valve 27, precise control and regulation of the plastic materials during the injection molding process can be achieved;

[0033] like Figure 2 and Figure 3 As shown, an observation plate 7 is fixedly connected to the top of the outer side of the injection tube 25, and a scale mark 8 is set on the side of the observation plate 7 away from the injection tube 25. A controller 9 is set on one side of the injection molding machine body 1. The design of the observation plate 7 provides a convenient observation point so that the operator can clearly observe the situation during the injection molding process. The existence of the scale mark 8 helps the operator to accurately judge the filling amount or injection amount of the plastic material. The controller 9 sets the specified injection amount, and then drives the movement of the cylinder 21 and the electronic valve 27 through the controller 9, and then actually extracts the capacity that needs to be injected;

[0034] like Figure 1 , Figure 4 and Figure 5 As shown, the inner wall of the quantitative adjustment component 2 is slidably connected with a constant temperature component 3, and the constant temperature component 3 includes a heat conducting block 31. Both ends of the outer side of the heat conducting block 31 are slidably connected to the inner wall of the injection tube 25. The inner wall of the heat conducting block 31 is installed with a heat conducting wire 32. The four corners of the outer side of the injection tube 25 are fixedly connected with a fixed block 33. One side of the fixed block 33 is rotatably connected with a rotating column 34. The outer side of the rotating column 34 is fixedly connected with a screw rod 35. The outer side of the screw rod 35 close to the rotating column 34 is slidably connected with a card block 36. The outer side of the screw rod 35 is threadedly connected to a limit block 37. The constant temperature component 3 is used for Control the temperature during the injection molding process. The heat conducting block 31 ensures that the contact area with the injection liquid inside the injection molding tube 25 is maximized, thereby effectively conducting heat. The heat conducting wire 32 is responsible for providing a constant heating temperature to ensure that the plastic material can maintain appropriate fluidity and viscosity during the injection molding process. The function of the fixed block 33 is to provide a stable support point. The design of the rotating column 34 allows the screw rod 35 to be rotated and adjusted when necessary. The screw rod 35 is designed to adjust the position of the limit block 37. The limit block 37 prevents the position of the heat conducting block 31 from being offset inside the injection molding tube 25.

[0035] like Figure 4 and Figure 5As shown, the side of the limit block 37 close to the fixed block 33 is engaged with the clamping block 36, and the side of the clamping block 36 away from the fixed block 33 is engaged with the heat conducting block 31. When the clamping block 36 is adjusted by rotation, the engagement of the clamping block 36 and the limit block 37 can limit the movement range of the heat conducting block 31 to avoid displacement, ensure its close contact with the inner wall of the injection tube 25, effectively conduct heat, maintain a constant temperature of the plastic material, thereby ensuring that the fluidity and viscosity of the plastic material meet the requirements during the injection molding process, and ensure the quality and size accuracy of the product.

[0036] like Figure 2 As shown, a support block 5 is fixedly connected to one side of the injection port 6 close to the temporary storage tank 26, and one side of the support block 5 is fixedly connected to the injection molding machine body 1. The support block 5 can withstand the weight of the injection port 6 and the force during the injection molding process to avoid instability of the position of the injection port 6 due to vibration or movement, thereby ensuring the smooth progress of the injection molding process and the stability of product quality.

[0037] Working principle:

[0038] like Figure 1 - Figure 5 As shown, first, the injection molding machine body 1 is responsible for heating and melting the plastic material, and controls the input amount of the plastic material through the quantitative adjustment component 2. The electronic valve 27 near the storage tube 4 is opened through the controller 9, and then the cylinder 21 provides power to drive the telescopic rod 22 to perform telescopic movement. The movement of the telescopic rod 22 can drive the piston 23 to move. When the interior of the injection tube 25 absorbs the specified injection liquid, the electronic valve 27 near the storage tube 4 is closed, and another electronic valve 27 is opened. Then the cylinder 21 drives the telescopic rod 22 to move, and the injection liquid flows to the injection port 6 through the piston 23. Secondly, the constant temperature component 3 keeps the plastic material in the injection tube 25 at a constant temperature through the heat conductive block 31 and the heat conductive wire 32. When the heat conductive wire 32 needs to be replaced, the limit block 37 is rotated to disengage the control of the block 36, and then the block 36 is moved to the side away from the heat conductive block 31, so that the two heat conductive blocks 31 can be moved outward, and the replacement can be completed. The operation is simple and convenient.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A quantitative injection molding device for injection molded parts, comprising an injection molding machine body (1), characterized in that: The top end of the injection molding machine body (1) is fixedly connected to a quantitative adjustment component (2), and the inner wall of the quantitative adjustment component (2) is slidably connected to a constant temperature component (3); The quantitative adjustment component (2) comprises a cylinder (21), the bottom end of the cylinder (21) is mounted on the injection molding machine body (1), the driving end of the cylinder (21) is fixedly connected to a telescopic rod (22), the side of the telescopic rod (22) away from the cylinder (21) is fixedly connected to a piston (23), both sides of the top of the injection molding machine body (1) are fixedly connected to mounting seats (24), the tops of the two mounting seats (24) are fixedly connected to injection tubes (25), the side of the injection tube (25) away from the cylinder (21) is fixedly connected to a temporary storage tank (26), and the upper and lower sides of the temporary storage tank (26) are fixedly connected to electronic valves (27).

2. A quantitative injection molding device for injection molded parts according to claim 1, characterized in that: The thermostatic component (3) comprises a heat conducting block (31), both ends of the outer side of the heat conducting block (31) are slidably connected to the inner wall of the injection molding tube (25), a heat conducting wire (32) is installed on the inner wall of the heat conducting block (31), the four corners of the outer side of the injection molding tube (25) are fixedly connected to fixed blocks (33), one side of the fixed block (33) is rotatably connected to a rotating column (34), the outer side of the rotating column (34) is fixedly connected to a screw rod (35), the outer side of the screw rod (35) close to the rotating column (34) is slidably connected to a clamping block (36), and the outer side of the screw rod (35) is threadedly connected to a limiting block (37).

3. The quantitative injection molding device for injection molded parts according to claim 1, characterized in that: The top end of one of the electronic valves (27) is fixedly connected to a storage tube (4), and the bottom end of the other electronic valve (27) is fixedly connected to an injection port (6).

4. A quantitative injection molding device for injection molded parts according to claim 3, characterized in that: A support block (5) is fixedly connected to one side of the injection port (6) close to the temporary storage tank (26), and one side of the support block (5) is fixedly connected to the injection molding machine body (1).

5. The quantitative injection molding device for injection molded parts according to claim 2, characterized in that: The side of the limiting block (37) close to the fixed block (33) is engaged with the clamping block (36), and the side of the clamping block (36) away from the fixed block (33) is engaged with the heat conducting block (31).

6. The quantitative injection molding device for injection molded parts according to claim 1, characterized in that: An observation plate (7) is fixedly connected to the outer top end of the injection tube (25), a scale mark (8) is provided on the side of the observation plate (7) away from the injection tube (25), and a controller (9) is provided on one side of the injection molding machine body (1).

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