Cooling device of plastic injection molding machine

Abstract

The utility model relates to the technical field of plastic injection molding, and discloses a cooling device of a plastic injection molding machine, which comprises an injection molding machine body, a control system is arranged outside the injection molding machine body, and a mold closing system and an injection molding system are arranged at the top of the injection molding machine body. According to the cooling device of the plastic injection molding machine, by arranging the cleaning mechanism, when a mold needs to be cooled, a hose is communicated with a water path in the mold, a circulating water cooling machine and a connecting pipe are started through a control system to conduct water circulation on water flow with heat, and when the water flow enters a cleaning frame through the hose, the cleaning frame is closed; the scale slag is driven by water flow to impact on the pressure-bearing block and then filtered through the fine filter screen, the scale slag enters the collecting barrel through the discharging pipe with the wide upper portion and the narrow lower portion, the scale slag is separated through the conical block and prevented from flowing back from the discharging pipe, the cleaning mechanism can treat the scale slag in water circulation in time, cold water circulation is prevented from being affected, and therefore the cooling speed is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of plastic injection molding technology, specifically a cooling device for a plastic injection molding machine. Background Technology

[0002] An injection molding machine, also known as an injection molding machine or injection molding machine, is a major molding equipment that uses plastic molds to make plastic products of various shapes from thermoplastic or thermosetting plastics. It heats the plastic material, melts it, and injects it into the mold cavity under high pressure. After cooling, the desired plastic product is formed. Cooling is an extremely important step in the molding process. With the continuous application of injection molding machines, various injection molding machine cooling devices have emerged.

[0003] Currently, the main improvement of injection molding machine cooling devices on the market is in terms of cooling rate. Existing injection molding machines consist of a control system, a mold clamping system, an injection system, and a cooling system. The mold is placed in the mold clamping system, the injection system performs injection, and the cooling system removes heat from the mold through water flow. However, the cooling system generally uses a chiller to circulate water, which removes heat from the mold. After the water is heated by the mold, scale easily forms inside the water pipes. Scale residue flows in the continuous water circulation. If not treated in time, it will affect the water flow rate, thereby reducing heat exchange efficiency and cooling rate. Therefore, a cooling device for plastic injection molding machines that can promptly remove scale residue in the water circulation to avoid affecting the flow of cold water and thus ensure the cooling rate is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cooling device for a plastic injection molding machine. It has the advantage of being able to promptly handle scale and sludge in the water circulation, avoiding affecting the flow of cold water and thus ensuring the cooling speed. It solves the problem that after the water temperature is heated by the mold, scale easily forms inside the water pipes. The scale and sludge will flow in the continuous water circulation. If it is not dealt with in time, it will affect the water flow speed, thereby reducing the heat exchange efficiency and thus reducing the cooling speed.

[0005] To achieve the above-mentioned purpose of timely handling of scale and sludge in water circulation, avoiding affecting the flow of cold water, and thus ensuring the cooling speed, this utility model provides the following technical solution: a cooling device for a plastic injection molding machine, including an injection molding machine body, a control system is provided on the outside of the injection molding machine body, a mold closing system and an injection system are provided on the top of the injection molding machine body, and a cleaning mechanism is provided on the outside of the injection molding machine body.

[0006] The cleaning mechanism includes a circulating water chiller, a connecting pipe, a cleaning box, a cleaning frame, a pressure block, a fine filter screen, an externally threaded pipe, and a collection cylinder. The circulating water chiller is fixedly installed on the right side of the injection molding machine body. A connecting pipe is provided on the outside of the circulating water chiller. A cleaning box is provided on the outside of the injection molding machine body. A cleaning frame is fixedly installed inside the cleaning box. A pressure block is fixedly installed inside the cleaning frame. A fine filter screen is provided inside the cleaning frame. An externally threaded pipe is fixedly connected to the bottom of the cleaning frame. A collection cylinder is provided at the bottom of the externally threaded pipe.

[0007] Furthermore, the top of the collecting cylinder is provided with an internally threaded tube, which is threadedly connected to an externally threaded tube.

[0008] Furthermore, a sealing ring is provided inside the internally threaded tube, and the outer diameter of the sealing ring is adapted to the inner diameter of the internally threaded tube.

[0009] Furthermore, a conical block is fixedly installed inside the collecting cylinder, and a feeding pipe is fixedly installed inside the collecting cylinder.

[0010] Furthermore, a mounting plate is fixedly installed at the bottom of the cleaning box, and the mounting plate is threadedly connected to the injection molding machine body by screws.

[0011] Furthermore, a flexible hose is provided on the outside of the cleaning box, and a water connector is provided on the outside of the flexible hose, which is connected to the cleaning frame.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] This cooling device for a plastic injection molding machine features a cleaning mechanism. When mold cooling is required, a flexible hose is connected to the water circuit within the mold. The control system activates a circulating water chiller, and the connecting pipe circulates heated water. As the water flows through the hose into the cleaning frame, scale and debris are impacted by the water flow onto the pressure block. After being filtered through a fine filter, the scale and debris enter the collection cylinder through a feed pipe that is wider at the top and narrower at the bottom. A conical block separates the scale and debris, preventing backflow from the feed pipe. This cleaning mechanism effectively removes scale and debris from the circulating water, ensuring the cooling speed and preventing any obstruction to the cold water flow. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0015] Figure 2 This is a front sectional view of the cleaning box of this utility model;

[0016] Figure 3 This is a structural diagram of the external structure of the collection cylinder of this utility model;

[0017] Figure 4This is a structural diagram of the cleaning box of this utility model.

[0018] In the diagram: 1. Injection molding machine body; 2. Control system; 3. Mold clamping system; 4. Injection system; 5. Cleaning mechanism; 501. Circulating water cooler; 502. Connecting pipe; 503. Cleaning box; 504. Cleaning frame; 505. Pressure block; 506. Fine filter screen; 507. External threaded pipe; 508. Collection cylinder; 6. Internal threaded pipe; 7. Sealing ring; 8. Conical block; 9. Feed pipe; 10. Mounting plate; 11. Hose; 12. Water connector. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 A cooling device for a plastic injection molding machine in this embodiment includes an injection molding machine body 1, a control system 2 is provided on the outside of the injection molding machine body 1, a mold clamping system 3 and an injection system 4 are provided on the top of the injection molding machine body 1, and a cleaning mechanism 5 is provided on the outside of the injection molding machine body 1.

[0021] The cleaning mechanism 5 includes a circulating water chiller 501, a connecting pipe 502, a cleaning box 503, a cleaning frame 504, a pressure block 505, a fine filter screen 506, an external threaded pipe 507, and a collection cylinder 508. The circulating water chiller 501 is fixedly installed on the right side of the injection molding machine body 1. The connecting pipe 502 is provided on the outside of the circulating water chiller 501. The cleaning box 503 is provided on the outside of the injection molding machine body 1. The cleaning frame 504 is fixedly installed inside the cleaning box 503. The pressure block 505 is fixedly installed inside the cleaning frame 504. The fine filter screen 506 is provided inside the cleaning frame 504. The external threaded pipe 507 is fixedly connected to the bottom of the cleaning frame 504. The collection cylinder 508 is provided at the bottom of the external threaded pipe 507.

[0022] In the implementation of the case, the top of the collection cylinder 508 is provided with an internally threaded tube 6, which is threadedly connected to the externally threaded tube 507. By providing the internally threaded tube 6, the collection cylinder 508 can be disassembled and replaced.

[0023] In the case implementation, a sealing ring 7 is provided inside the internally threaded pipe 6. The outer diameter of the sealing ring 7 is adapted to the inner diameter of the internally threaded pipe 6. By setting the sealing ring 7, a seal can be formed to prevent water from flowing out.

[0024] In the implementation of the case, a conical block 8 is fixedly installed inside the collection cylinder 508, and a discharge pipe 9 is fixedly installed inside the collection cylinder 508. By setting the conical block 8 and the discharge pipe 9, the scale residue can be separated to prevent the debris from flowing back from the discharge pipe 9.

[0025] In the implementation of this case, the control system 2 is electrically connected to all electronic components in this patent via wires, thereby controlling all electronic components in this patent by operating the control system 2.

[0026] When implementing this procedure, please follow these steps:

[0027] 1) First, when the mold needs to be cooled, connect the hose 11 to the water passage in the mold;

[0028] 2) Then, the circulating water chiller 501 is started through the control system 2, and the connecting pipe 502 circulates the heated water.

[0029] 3) Then, the circulating water chiller 501 is started through the control system 2, and the connecting pipe 502 circulates the heated water.

[0030] 4) Finally, after being filtered by the fine filter screen 506, the scale residue enters the collection cylinder 508 through the feed pipe 9, which is wider at the top and narrower at the bottom. The conical block 8 separates the scale residue to prevent the fragments from flowing back from the feed pipe 9.

[0031] In summary, the cooling device for this plastic injection molding machine, through the cleaning mechanism 5, connects the hose 11 to the water passage in the mold when cooling is required. The circulating water chiller 501 is started through the control system 2, and the connecting pipe 502 circulates the heated water. When the water flows through the hose 11 into the cleaning frame 504, the scale and sludge are carried by the water flow and impact the pressure block 505. After being filtered by the fine filter screen 506, the scale and sludge enter the collection cylinder 508 through the feed pipe 9, which is wider at the top and narrower at the bottom. The conical block 8 separates the scale and sludge to prevent the debris from flowing back from the feed pipe 9. This cleaning mechanism 5 can promptly handle the scale and sludge in the water circulation, avoid affecting the flow of cold water, and thus ensure the cooling speed.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for a plastic injection molding machine, comprising an injection molding machine body (1), characterized in that: The outside of the injection molding machine body (1) is provided with a control system (2), the top of the injection molding machine body (1) is provided with a mold closing system (3) and an injection molding system (4), and the outside of the injection molding machine body (1) is provided with a cleaning mechanism (5); The cleaning mechanism (5) comprises a circulating water cooler (501), a connecting pipe (502), a cleaning box (503), a cleaning frame (504), a pressure block (505), a fine filter screen (506), an external thread pipe (507) and a collecting cylinder (508), the right side of the injection molding machine body (1) is fixedly installed with the circulating water cooler (501), the outside of the circulating water cooler (501) is provided with the connecting pipe (502), the outside of the injection molding machine body (1) is provided with the cleaning box (503), the inside of the cleaning box (503) is fixedly installed with the cleaning frame (504), the inside of the cleaning frame (504) is fixedly installed with the pressure block (505), the inside of the cleaning frame (504) is provided with the fine filter screen (506), the bottom of the cleaning frame (504) is fixedly connected with the external thread pipe (507), and the bottom of the external thread pipe (507) is provided with the collecting cylinder (508).

2. A cooling device for a plastic injection molding machine according to claim 1, characterized in that: The top of the collecting cylinder (508) is provided with an internal thread pipe (6), and the internal thread pipe (6) is in threaded connection with the external thread pipe (507).

3. A cooling device for a plastic injection molding machine according to claim 2, characterized in that: The inside of the internal thread pipe (6) is provided with a sealing ring (7), and the outer diameter of the sealing ring (7) is matched with the inner diameter of the internal thread pipe (6).

4. A cooling device for a plastic injection molding machine as defined in claim 1, wherein: The inside of the collecting cylinder (508) is fixedly installed with a tapered block (8), and the inside of the collecting cylinder (508) is fixedly installed with a discharging pipe (9).

5. A plastic injection molding machine cooling apparatus as defined in claim 1, wherein: The bottom of the cleaning box (503) is fixedly installed with a mounting plate (10), and the mounting plate (10) is in threaded connection with the injection molding machine body (1) through screws.

6. A plastic injection molding machine cooling apparatus as defined in claim 1, wherein: The outside of the cleaning box (503) is provided with a hose (11), the outside of the hose (11) is provided with a water connector (12), and the hose (11) is in communication with the cleaning frame (504).

Images