Injection molding machine with thick film pressure relief shaft protection

Abstract

The utility model discloses an injection molding machine with a thick film pressure relief shaft protection function, which comprises an injection molding part, a pressure relief shaft protection part, a pressure relief shaft protection part and a pressure relief shaft protection part, and is characterized in that the injection molding part comprises an injection molding rack, a base, a screw and a driving device; the limiting part comprises an upper limiting plate, a lower limiting plate, a thick film pressure sensor, a sensing head, a limiting disc, a supporting rod, a spring, an inner groove, a push plate, a hole body and a pressing plate, the inner surface of the injection molding machine frame is connected with the thick film pressure sensor, and the sensing head is connected to one side of the outer surface of the thick film pressure sensor. The problems that when an existing injection molding machine is actually used, due to the complex working conditions that the injection molding machine generates strong mechanical vibration and material flow impact in the working process, a thick film pressure sensor in a traditional installation mode is very prone to displacement, and once the sensor displaces, pressure monitoring data are inaccurate, and the cost is low are solved. Therefore, the production efficiency is reduced, and the equipment maintenance cost is increased.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, and in particular to an injection molding machine with thick film pressure relief shaft protection. Background Technology

[0002] An injection molding machine is a primary molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics. It heats the plastic to a molten state and then injects it into a mold cavity at a certain speed and pressure. After pressure holding, cooling, and solidification, the desired plastic product can be obtained.

[0003] In existing injection molding machines, the thick-film pressure sensor, as a key component for monitoring the axial pressure of the screw, plays a crucial role in ensuring its operational stability. Due to the intense mechanical vibrations and material flow impacts that occur during operation, thick-film pressure sensors installed in traditional methods are prone to displacement. Displacement not only leads to inaccurate pressure monitoring data and malfunctions the thick-film pressure relief shaft protection function, but also risks damage to other screw components, reducing production efficiency and increasing equipment maintenance costs. Therefore, there is a need for an injection molding machine with thick-film pressure relief shaft protection to ensure that the thick-film pressure sensor maintains a precise installation position even under the harsh working environment of the injection molding machine. Utility Model Content

[0004] The purpose of this invention is to provide an injection molding machine with thick-film pressure relief shaft protection, in order to solve the problem mentioned in the background art. In the actual use of existing injection molding machines, the thick-film pressure sensor is a key component for monitoring the axial pressure of the screw, and its working stability is crucial. Due to the complex working conditions of strong mechanical vibration and material flow impact generated by the injection molding machine during operation, the thick-film pressure sensor with traditional installation method is prone to displacement. Once the sensor is displaced, it will not only lead to inaccurate pressure monitoring data and failure of the thick-film pressure relief shaft protection function of the injection molding machine, but also cause the risk of damage to some screw components, thereby reducing production efficiency and increasing equipment maintenance costs.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an injection molding machine with thick-film pressure relief shaft protection, comprising:

[0007] The injection molding component includes an injection molding frame, a base, a screw, and a drive unit;

[0008] The limiting component includes an upper limiting plate, a lower limiting plate, a thick-film pressure sensor, a sensing head, a limiting disc, a support rod, a spring, an inner groove, a push plate, a hole, and a pressure plate. The inner surface of the injection molding machine frame is connected to the thick-film pressure sensor, and the sensing head is connected to one side of the outer surface of the thick-film pressure sensor. The upper limiting plate and the lower limiting plate are located at the top and bottom of the outer surface of the thick-film pressure sensor, respectively. The support rod is symmetrically connected to one side of the outer surface of the upper limiting plate and the lower limiting plate, respectively. The spring is wound around the outer surface of the support rod. The push plate is located on one side of the outer surface of the upper limiting plate and the lower limiting plate, respectively, and has a hole in the middle. The support rod is connected inside the hole. The pressure plate is connected to the bottom of the push plate and clamps the outer side of the sensing head.

[0009] Furthermore, a limiting plate is connected to one side of the outer surface of the support rod, and an inner groove is provided on one side of the pressure plate, with the sensor head embedded and connected inside the inner groove.

[0010] Furthermore, it also includes a moving component, which includes a side plate, a top plate, a slider, a moving rod, a sliding groove, and a moving slot. The side plate is connected to one side of the inner surface of the injection molding machine frame and has a moving slot at one end. The moving block is connected to the other side of the outer surface of the upper limit plate and is movably connected inside the moving slot. The top plate is connected to the lower part of one side of the upper limit plate and the lower limit plate respectively and has a sliding groove inside. The slider is connected to the top of the push plate and is movably connected inside the sliding groove.

[0011] Furthermore, the bottom of the injection molding machine frame is connected to a base, and the screw and drive device are both connected to the inner surface of the injection molding machine frame.

[0012] Furthermore, it also includes a positioning component, which includes a first upright, an insert rod, a second upright, a fixing groove, a rubber column, and an inner groove. The upper limit plate has two uprights symmetrically connected to its outer surfaces, and the lower limit plate has two uprights symmetrically connected to its outer surfaces. The insert rod is connected to the bottom of the first upright, and the top of the second upright has an inner groove, into which the insert rod is inserted.

[0013] Furthermore, the two sides of the inner surface of the inner groove are bonded to the rubber column, and the rubber column is clamped to the two sides of the outer surface of the plug rod. The inner groove is opened inside both the upper limit plate and the lower limit plate.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] This invention utilizes an upper limit plate, a lower limit plate, a support rod, a spring, a push plate, and a pressure plate on the inner surface of the injection molding machine frame. The spring generates elastic force that pulls the push plate, positioning the thick-film pressure sensor between the upper and lower limit plates. Then, the push plate is released, and the spring rebounds, causing the pressure plate to clamp the sensor head from the outside, thus positioning the thick-film pressure sensor. The spring possesses excellent elasticity and damping characteristics, absorbing the high-frequency mechanical vibrations generated during injection molding machine operation and preventing direct transmission of vibration energy to the thick-film pressure sensor. The clamping of the pressure plate and push plate achieves sensor positioning, ensuring the thick-film pressure sensor maintains a precise installation position even in the harsh working environment of the injection molding machine.

[0016] Based on the aforementioned beneficial effects, by providing a first upright, a second upright, an insert rod, and a rubber column on the outside of the upper and lower limit plates respectively, when the upper and lower limit plates are positioned outside the thick film pressure sensor, the insert rod is simultaneously inserted into the inner groove, while the rubber column is clamped on both sides of the insert rod. This restricts the radial displacement of the thick film pressure sensor, preventing skewing or excessive displacement due to uneven force, and thus achieving the positioning effect again. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the injection molding machine frame of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the injection molding machine frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the screw of this utility model;

[0021] Figure 4 This is a schematic diagram of the upper limit plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the lower limit plate of this utility model;

[0023] Figure 6 This is a schematic diagram of the push plate of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 100. Injection molding machine frame; 101. Base; 102. Screw; 103. Drive unit;

[0026] 200. Upper limit plate; 201. Lower limit plate; 202. Thick film pressure sensor; 203. Sensor head; 204. Limiting plate; 205. Support rod; 206. Spring; 207. Inner groove; 208. Push plate; 209. Hole; 210. Pressure plate;

[0027] 300. Side plate; 301. Top plate; 302. Slider; 303. Moving rod; 304. Slide groove; 305. Moving groove;

[0028] 400. Pole 1; 401. Inserted pole; 402. Pole 2; 403. Fixing groove; 404. Rubber column; 405. Inner groove. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0032] Please see Figure 1-6 As shown, this embodiment is an injection molding machine with thick-film pressure relief shaft protection, including:

[0033] The injection molding component includes an injection molding frame 100, a base 101, a screw 102, and a drive device 103;

[0034] The limiting component includes an upper limiting plate 200, a lower limiting plate 201, a thick-film pressure sensor 202, a sensing head 203, a limiting disc 204, a support rod 205, a spring 206, an inner groove 207, a push plate 208, a hole 209, and a pressure plate 210. The thick-film pressure sensor 202 is connected to the inner surface of the injection molding frame 100, and the sensing head 203 is connected to one side of the outer surface of the thick-film pressure sensor 202. The upper limiting plate 200 and the lower limiting plate 201 are respectively located on the thick film... The top and bottom of the outer surface of the pressure sensor 202 are respectively connected to the support rod 205 symmetrically connected to one side of the outer surface of the upper limit plate 200 and the lower limit plate 201. The spring 206 is wound around the outer surface of the support rod 205. The push plate 208 is located on one side of the outer surface of the upper limit plate 200 and the lower limit plate 201 and has a hole 209 in the middle. The support rod 205 is connected to the inside of the hole 209. The pressure plate 210 is connected to the bottom of the push plate 208 and clamped to the outside of the sensor head 203.

[0035] The spring 206 generates a spring force to pull the push plate 208, so that the thick film pressure sensor 202 is located between the upper limit plate 200 and the lower limit plate 201. Then, the push plate 208 is loosened, and the spring 206 rebounds, so that the pressure plate 210 clamps the outside of the sensor head 203 to position the thick film pressure sensor 202.

[0036] A limiting plate 204 is connected to one side of the outer surface of the support rod 205, and an inner groove 207 is provided on one side of the pressure plate 210. The sensor head 203 is embedded and connected inside the inner groove 207.

[0037] When the upper limit plate 200 and the lower limit plate 201 are installed on the outside of the thick film pressure sensor 202, the sensing head 203 is simultaneously engaged inside the inner groove 207.

[0038] It also includes a movable component, which includes a side plate 300, a top plate 301, a slider 302, a moving rod 303, a sliding groove 304, and a moving slot 305. The side plate 300 is connected to one side of the inner surface of the injection molding machine frame 100 and has a moving slot 305 at one end. The moving block is connected to the other side of the outer surface of the upper limit plate 200 and is movably connected inside the moving slot 305. The top plate 301 is connected to the lower part of one side of the upper limit plate 200 and the lower limit plate 201 respectively and has a sliding groove 304 inside. The slider 302 is connected to the top of the push plate 208 and is movably connected inside the sliding groove 304.

[0039] By moving the moving block inside the moving groove 305, the upper limit plate 200 can be moved to the upper part. When the push plate 208 moves, the slider 302 moves inside the sliding groove 304 at the same time, both of which can play a supporting role.

[0040] The bottom of the injection molding machine frame 100 is connected to the base 101, and the screw 102 and the drive device 103 are both connected to the inner surface of the injection molding machine frame 100.

[0041] The base 101 supports the entire injection molding machine frame 100, while the thick film pressure sensor 202 is installed at the connection point between the screw 102 and the drive device 103 at the rear end of the screw 102.

[0042] The working principle is as follows: First, the moving block moves inside the moving groove 305, moving the upper limit plate 200 to the upper part. The spring 206 generates elastic force to pull the push plate 208, so that the thick film pressure sensor 202 is located between the upper limit plate 200 and the lower limit plate 201. Then, the moving block moves again inside the moving groove 305, moving the upper limit plate 200 to the lower part and surrounding the top of the thick film pressure sensor 202. The sensor head 203 is then engaged inside the inner groove 207. Finally, the push plate is released. 208. The spring 206 rebounds, causing the pressure plate 210 to clamp the outside of the sensor head 203 to position the thick film pressure sensor 202. The spring 206 has excellent elasticity and damping characteristics, which can absorb the high-frequency mechanical vibration generated during the operation of the injection molding machine and prevent the vibration energy from being directly transmitted to the thick film pressure sensor 202. The clamping of the pressure plate 210 and the push plate 208 is used to achieve the positioning of the sensor, ensuring that the thick film pressure sensor 202 always maintains a precise installation position in the harsh working environment of the injection molding machine.

[0043] Please see Figure 1 , Figure 4 , Figure 5 As shown, this embodiment, based on the above embodiment, further includes a positioning component. The positioning component includes a first upright 400, an insert rod 401, a second upright 402, a fixing groove 403, a rubber column 404, and an inner groove 405. The first upright 400 is symmetrically connected to both ends of the outer surface of the upper limit plate 200, and the second upright 402 is symmetrically connected to both ends of the outer surface of the lower limit plate 201. The insert rod 401 is connected to the bottom of the first upright 400, and the top of the second upright 402 has an inner groove 405. The insert rod 401 is inserted into and connected to the inside of the inner groove 405.

[0044] When the upper limit plate 200 and the lower limit plate 201 are positioned outside the thick film pressure sensor 202, the insertion rod 401 is simultaneously inserted into the inner groove 405, and the rubber column 404 is clamped on both sides of the insertion rod 401, thus restricting the radial displacement of the thick film pressure sensor 202.

[0045] The inner surfaces of the inner groove 405 are bonded to the rubber column 404 on both sides, and the rubber column 404 is clamped to the outer surfaces of the insertion rod 401 on both sides. The inner groove 405 is provided inside both the upper limit plate 200 and the lower limit plate 201.

[0046] The inner groove 405 is designed as a groove that precisely fits the shape of the thick film pressure sensor 202.

[0047] The working principle is as follows: First, after the upper limit plate 200 and the lower limit plate 201 are positioned outside the thick film pressure sensor 202, the insertion rod 401 is simultaneously inserted into the inner groove 405, while the rubber column 404 is clamped on both sides of the insertion rod 401. This restricts the radial displacement of the thick film pressure sensor 202, preventing skewing or excessive displacement due to uneven force, and thus achieving the positioning effect again.

[0048] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An injection molding machine with thick-film pressure relief shaft protection, characterized in that, include: The injection molding component includes an injection molding frame (100), a base (101), a screw (102), and a drive device (103); The limiting component includes an upper limiting plate (200), a lower limiting plate (201), a thick-film pressure sensor (202), a sensing head (203), a limiting disc (204), a support rod (205), a spring (206), an inner groove (207), a push plate (208), a hole (209), and a pressure plate (210). The thick-film pressure sensor (202) is connected to the inner surface of the injection molding frame (100), and the sensing head (203) is connected to one side of the outer surface of the thick-film pressure sensor (202). The upper limiting plate (200) and the lower limiting plate (201) are respectively located at... The top and bottom of the outer surface of the thick film pressure sensor (202) are respectively connected to the upper limit plate (200) and the lower limit plate (201) on one side. The spring (206) is wound around the outer surface of the support rod (205). The push plate (208) is located on one side of the outer surface of the upper limit plate (200) and the lower limit plate (201) and has a hole (209) in the middle. The support rod (205) is connected inside the hole (209). The pressure plate (210) is connected to the bottom of the push plate (208) and clamped to the outside of the sensor head (203).

2. The injection molding machine with thick-film pressure relief shaft protection according to claim 1, characterized in that, A limiting plate (204) is connected to one side of the outer surface of the support rod (205), and an inner groove (207) is provided on one side of the pressure plate (210), with the sensor head (203) embedded in the inside of the inner groove (207).

3. An injection molding machine with thick-film pressure relief shaft protection according to claim 1, characterized in that, It also includes a moving component, which includes a side plate (300), a top plate (301), a slider (302), a moving rod (303), a slide groove (304), and a moving slot (305). The side plate (300) is connected to one side of the inner surface of the injection molding machine frame (100) and has a moving slot (305) at one end. The moving block is connected to the other side of the outer surface of the upper limit plate (200) and is movably connected inside the moving slot (305). The top plate (301) is connected to the lower part of one side of the upper limit plate (200) and the lower limit plate (201) respectively and has a slide groove (304) inside. The slider (302) is connected to the top of the push plate (208) and is movably connected inside the slide groove (304).

4. An injection molding machine with thick-film pressure relief shaft protection according to claim 1, characterized in that, The bottom of the injection molding machine frame (100) is connected to a base (101), and the screw (102) and the drive device (103) are both connected to the inner surface of the injection molding machine frame (100).

5. An injection molding machine with thick-film pressure relief shaft protection according to claim 1, characterized in that, It also includes positioning components, which include a first upright (400), an insert rod (401), a second upright (402), a fixing groove (403), a rubber column (404), and an inner groove (405). The two ends of the outer surface of the upper limit plate (200) are symmetrically connected to the first upright (400), and the two ends of the outer surface of the lower limit plate (201) are symmetrically connected to the second upright (402). The insert rod (401) is connected to the bottom of the first upright (400), and the top of the second upright (402) is provided with an inner groove (405). The insert rod (401) is inserted into the interior of the inner groove (405).

6. An injection molding machine with thick-film pressure relief shaft protection according to claim 5, characterized in that, The inner surfaces of the inner groove (405) are bonded to the rubber column (404) on both sides. The rubber column (404) is clamped to the outer surfaces of the insertion rod (401) on both sides. The inner groove (405) is provided inside both the upper limit plate (200) and the lower limit plate (201).

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