Extrusion die temperature detection assembly

Abstract

The utility model relates to the technical field of PVC extrusion dies, in particular to an extrusion die temperature detection assembly which comprises a shell with an opening, a protective cover and a detection head used for detecting temperature, the detection head is separated from the outside through the protective cover, a flip assembly and a push-pull assembly are arranged in the shell, the flip assembly is connected with the protective cover, and the push-pull assembly is connected with the protective cover. The push-pull assembly is connected with the detection head, a first transmission mechanism is arranged between the protection cover and the detection head, when temperature measurement is not needed, the detection head is located in the shell, and the protection cover seals the shell; when temperature needs to be measured, the flip cover assembly drives the protective cover to open, and the protective cover drives the detection head to move out of the shell. After the detection head is exposed out of the opening of the shell, the temperature of the pipe is detected, so that the detection head can extend out of the shell for temperature detection while the protective cover is opened, the situation that the detection head cannot extend out after the protective cover is opened is prevented, and the reliability of the detection assembly is improved.

Description

Technical Field

[0001] This utility model relates to the field of PVC extrusion mold technology, and more specifically, to an extrusion mold temperature detection component. Background Technology

[0002] During the extrusion of PVC pipes, the temperature difference between the extrusion die and the die core can lead to product dimensional deviations. Excessive die core temperature causes expansion, resulting in larger product dimensions; conversely, insufficient die core temperature causes contraction, leading to smaller product dimensions. Therefore, a temperature detection component for PVC pipe extrusion dies is needed.

[0003] Chinese patent application CN107471604A discloses a cooling and control device for a screw extruder. The cooling device comprises a detection device, a cooling device, a controller, a controllable display device, and a tank structure. The detection device includes a probe, a temperature measuring device, and a data acquisition device. A telescopic plate is also mounted on the detection device. The detection device and the controller are electrically connected. The detection device detects plastic passing over a guide roller. When the probe detects plastic passing through, the telescopic plate opens, the temperature measuring device measures the temperature, and transmits the temperature data to the data acquisition device. The data acquisition device then transmits the data to the controllable display device for processing. The telescopic plate can close when the device is not measuring temperature to prevent debris from entering the detection device and affecting detection accuracy. However, in the above solution, opening the telescopic plate requires additional control of the temperature measuring device to extend for measurement. This may result in the telescopic plate opening but the temperature measuring device failing to extend, affecting the temperature measurement effect. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology in which the protective cover and the detection head cannot be opened synchronously, and to provide an extrusion die temperature detection component that can drive the detection head to open when the protective cover is opened.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] An extrusion die temperature detection component is provided, including a housing with an opening, a protective cover, and a detection head for detecting temperature. The protective cover is installed on the opening of the housing, and the detection head is installed inside the housing. The protective cover isolates the detection head from the outside. The housing is provided with a flip-top assembly and a push-pull assembly. The flip-top assembly is connected to the protective cover, and the push-pull assembly is connected to the detection head. A first transmission mechanism is provided between the protective cover and the detection head.

[0007] This utility model discloses an extrusion die temperature detection component. When temperature measurement is not required, the detection head is located inside the outer shell, and the protective cover seals the outer shell to prevent damage to the detection head due to temperature changes, thus extending its service life and preventing contamination. When temperature measurement is required, the flip-top assembly drives the protective cover to open, and the protective cover drives the detection head to move out of the outer shell via the first transmission mechanism; alternatively, the push-pull assembly pushes the detection head out of the outer shell, and the detection head drives the protective cover to open via the first transmission mechanism. After the detection head is exposed from the opening in the outer shell, it detects the temperature of the pipe. Through the cooperation of the flip-top assembly, the push-pull assembly, and the first transmission mechanism, the detection head can extend from the outer shell to perform temperature detection while the protective cover is open, preventing the detection head from failing to extend after the protective cover is opened and improving the reliability of the detection component.

[0008] Furthermore, the first transmission mechanism includes a transmission plate, one end of which is connected to the protective cover and the other end of which is connected to the detection head. When the flip-top assembly drives the protective cover to open, the transmission plate moves with the protective cover to the outside of the housing, and the transmission plate drives the detection head to move to the outside of the housing to detect the temperature of the pipe.

[0009] Furthermore, the detection head is equipped with a rotating shaft, the transmission plate is fixedly connected to the protective cover, the transmission plate is equipped with a slot, the rotating shaft passes through the slot and is movably connected to the slot, the protective cover is rotatably connected to the outer shell, and the detection head is slidably connected to the inner wall of the outer shell. When installing the detection assembly, the side wall of the outer shell with the detection head is closest to the pipe. Since the detection head is slidably connected to the inner wall of the outer shell, it can avoid the detection head being too far from the pipe when it extends, thus affecting the detection effect. When measuring the temperature, the flip-top assembly drives the protective cover to rotate outward from the outer shell. The slot and the rotating shaft slide relative to the axis of the rotating shaft while rotating. The slot applies an outward force to the rotating shaft, causing the detection head to slide outward until it extends out of the opening of the outer shell to detect the temperature of the pipe.

[0010] Furthermore, the connection point between the protective cover and the outer casing is located on the side wall opposite to the side wall where the detection head is located. This prevents interference between the flip-top assembly and the push-pull assembly; when the side wall of the outer casing where the detection head is installed is closest to the pipe, it also prevents the protective cover from blocking the heat radiation from the pipe when the detection head extends from the outer casing, thus avoiding affecting the measurement results.

[0011] Furthermore, the flip-top assembly includes a driving device and a second transmission mechanism. One end of the second transmission mechanism is connected to the output end of the driving device, and the other end is connected to the protective cover. When measuring temperature, the driving device drives the protective cover to open via the second transmission mechanism, and the protective cover drives the detection head to extend via the first transmission mechanism.

[0012] Furthermore, the driving device includes a telescopic rod and a second support block. The telescopic rod is fixedly mounted on the inner wall of the outer casing. The second transmission mechanism includes a connecting rod and a third support block. The output end of the telescopic rod is fixedly connected to the second support block. One end of the connecting rod is rotatably connected to the second support block, and the other end is rotatably connected to the third support block. The third support block is fixed to the protective cover. When measuring temperature, the telescopic rod extends, causing the second support block to move linearly outward from the outer casing, which in turn causes the protective cover to open via the connecting rod.

[0013] Furthermore, the protective cover is provided with a slide rail, in which a first slider is slidably mounted, and the first slider is rotatably connected to the outer shell. When the flip-top assembly is in operation, the driving device applies an outward force to the protective cover through the first transmission mechanism, causing the first slider to slide relative to the outer shell while rotating. This simultaneous sliding of the protective cover relative to the outer shell reduces the extension distance required for the telescopic rod to open the protective cover.

[0014] Furthermore, the push-pull assembly includes a slide rail and a second slider. The slide rail is fixedly installed inside the housing, and the second slider is slidably installed on the slide rail. The detection head is fixed on the second slider. When the protective cover moves, the detection head moves outward via the first transmission mechanism, thereby causing the second slider to move along the slide rail.

[0015] Furthermore, the detection head includes a connecting frame, a fixing rod, and a temperature detector. The connecting frame is fixedly connected to the second slider, the fixing rod is disposed on the connecting frame, and the temperature detector is mounted on the fixing rod. A rotating shaft is disposed on the connecting frame, and the rotating shaft is connected to the first transmission mechanism. The protective cover applies a force to the connecting frame and the second slider outward through the first transmission mechanism, causing the connecting frame to slide outward, which in turn drives the fixing rod and the temperature detector to slide outward. After the temperature detector moves outside the opening, it measures the temperature of the pipe.

[0016] Furthermore, the outer casing is equipped with a cooling fan and vents. This can accelerate heat dissipation and prevent the internal temperature of the casing from becoming too high.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The extrusion die temperature detection component of this utility model has the following features: 1. When the protective cover is opened, it drives the detection head to extend, eliminating the need for separate control of the detection head or the protective cover, thus preventing the detection head from failing to extend when the protective cover is opened and improving reliability; 2. When temperature measurement is not required, the detection head is located inside the outer shell, and the protective cover seals the outer shell, preventing the detection head from being damaged by temperature changes or contaminated by external debris, thus extending its service life. Attached Figure Description

[0019] Figure 1 This is a first structural schematic diagram of the extrusion die temperature detection component of this utility model;

[0020] Figure 2 This is a schematic diagram of the second structure of the extrusion die temperature detection component of this utility model.

[0021] Figure 3 This is a schematic diagram of the third structure of the extrusion die temperature detection component of this utility model;

[0022] Figure 4 This is a schematic diagram of the push-pull assembly of the extrusion die temperature detection component of this utility model;

[0023] Figure 5 This is an assembly diagram of the extrusion die temperature detection component of this utility model.

[0024] In the attached diagram: 1. Outer shell; 11. Pad; 12. Cooling fan; 13. Vent; 14. Mounting plate; 2. Protective cover; 21. First slider; 22. Slide rail; 3. Flip-top assembly; 31. Drive device; 311. Telescopic rod; 312. First support block; 313. Second support block; 32. Second transmission mechanism; 321. Connecting rod; 322. Third support block; 4. Detection head; 41. Connecting frame; 42. Fixing rod; 43. Temperature detector; 44. Rotating shaft; 5. Push-pull assembly; 51. Slide frame; 52. Second slider; 6. First transmission mechanism; 61. Transmission plate; 611. Groove; 7. Extrusion die; 71. Discharge port; 72. Pipe. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0026] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0027] Example 1

[0028] like Figures 1 to 5 The first embodiment of the extrusion die temperature detection component of this utility model is shown, including a housing 1 with an opening, a protective cover 2, and a detection head 4 for detecting temperature. The protective cover 2 is installed on the opening of the housing 1, and the detection head 4 is installed inside the housing 1. The protective cover 2 isolates the detection head 4 from the outside. The housing 1 is provided with a flip-top assembly 3 and a push-pull assembly 5. The flip-top assembly 3 is connected to the protective cover 2, and the push-pull assembly 5 is connected to the detection head 4. A first transmission mechanism 6 is provided between the protective cover 2 and the detection head 4.

[0029] The extrusion die temperature detection component of this utility model has the following characteristics: When temperature measurement is not required, the detection head 4 is located inside the outer shell 1, and the protective cover 2 seals the outer shell 1 to prevent damage to the detection head 4 due to temperature changes, extend its service life, and prevent contamination. When temperature measurement is required, the flip-top assembly 3 drives the protective cover 2 to open, and the protective cover 2 drives the detection head 4 to move out of the outer shell 1 through the first transmission mechanism 6; or the push-pull assembly 5 pushes the detection head 4 to move out of the outer shell 1, and the detection head 4 drives the protective cover 2 to open through the first transmission mechanism 6. After the detection head 4 is exposed from the opening of the outer shell 1, it detects the temperature of the tube 72. Through the cooperation of the flip-top assembly 3, the push-pull assembly 5, and the first transmission mechanism 6, the detection head 4 can extend from the outer shell 1 to perform temperature detection at the same time as the protective cover 2 is opened, preventing the detection head 4 from failing to extend after the protective cover 2 is opened, and improving the reliability of the detection component.

[0030] The first transmission mechanism 6 includes a transmission plate 61, one end of which is connected to the protective cover 2, and the other end is connected to the detection head 4. When the flip-top assembly 3 drives the protective cover 2 to open, the transmission plate 61 moves with the protective cover 2 to the outside of the outer shell 1, and the transmission plate 61 drives the detection head 4 to move to the outside of the outer shell 1 to detect the temperature of the pipe 72.

[0031] like Figure 4 As shown, the detection head 4 is equipped with a rotating shaft 44, such as Figure 1 and Figure 2As shown, the transmission plate 61 is fixedly connected to the protective cover 2. The transmission plate 61 has a slot 611, through which the rotating shaft 44 passes and is movably connected. The protective cover 2 is rotatably connected to the outer shell 1, and the detection head 4 is slidably connected to the inner wall of the outer shell 1. When installing the detection assembly, the side wall of the outer shell 1 with the detection head 4 installed is made closest to the pipe 72. Since the detection head 4 is slidably connected to the inner wall of the outer shell 1, the distance between the detection head 4 and the pipe 72 when it extends outward can be avoided, which would affect the detection effect. When measuring the temperature, the flip-top assembly 3 drives the protective cover 2 to rotate outward from the outer shell 1. The slot 611 and the rotating shaft 44 slide relative to the axis of the rotating shaft 44 while rotating. The slot 611 applies an outward force to the rotating shaft 44, causing the detection head 4 to slide outward until it extends out of the opening of the outer shell 1 to detect the temperature of the pipe 72.

[0032] like Figures 1 to 3 As shown, the connection point between the protective cover 2 and the outer casing 1 is located on the side wall opposite to the side wall where the detection head 4 is located. This can prevent interference between the flip cover assembly 3 and the push-pull assembly 5; when the side wall of the outer casing 1 where the detection head 4 is installed is closest to the pipe 72, it can also prevent the protective cover 2 from blocking the heat radiation of the pipe 72 when the detection head 4 extends out of the outer casing 1, thus affecting the measurement results.

[0033] In this embodiment, as Figure 5 As shown, the side wall where the detection head 4 is located is installed on the side wall of the extrusion mold 7. The extrusion mold 7 is provided with a discharge port 71. The opening direction of the outer shell 1 is the same as the discharge direction of the discharge port 71. When the detection head 4 reaches its maximum extension length, the detection head 4 is located above the pipe 72.

[0034] like Figure 1 and Figure 3 As shown, the outer casing 1 is equipped with a cooling fan 12 and vents 13. This can accelerate heat dissipation and prevent the temperature inside the outer casing 1 from becoming too high.

[0035] The working principle of the extrusion die temperature detection component in this embodiment is as follows: When installing the detection component, the side wall where the detection head 4 is located is installed on the side wall of the extrusion die 7. When temperature measurement is not required, the detection head 4 is located inside the outer shell 1, the protective cover 2 closes the outer shell 1, and the cooling fan 12 accelerates the heat dissipation of the detection head 4 to prevent the detection head 4 from being damaged due to temperature changes, extend its service life, and prevent the detection head 4 from being contaminated by external debris. When temperature measurement is required, the flip cover component 3 drives the protective cover 2 to rotate outward from the outer shell 1. While the slot 611 moves relative to the rotating shaft 44, it applies a horizontal outward force to the rotating shaft 44, causing the detection head 4 to extend out from the opening of the outer shell 1 to detect the temperature of the pipe 72.

[0036] Example 2

[0037] This embodiment is the second embodiment of the extrusion die temperature detection component of this utility model. This embodiment is similar to the first embodiment, except that, as Figure 2 As shown, the flip-top assembly 3 includes a drive device 31 and a second transmission mechanism 32. One end of the second transmission mechanism 32 is connected to the output end of the drive device 31, and the other end is connected to the protective cover 2. When measuring temperature, the drive device 31 drives the protective cover 2 to open through the second transmission mechanism 32, and the protective cover 2 drives the detection head 4 to extend through the first transmission mechanism 6.

[0038] like Figure 2 As shown, the driving device 31 includes a telescopic rod 311 and a second support block 313. The telescopic rod 311 is fixedly mounted on the inner wall of the outer casing 1. The second transmission mechanism 32 includes a connecting rod 321 and a third support block 322. The output end of the telescopic rod 311 is fixedly connected to the second support block 313. One end of the connecting rod 321 is rotatably connected to the second support block 313, and the other end is rotatably connected to the third support block 322. The third support block 322 is fixed on the protective cover 2. When measuring temperature, the telescopic rod 311 extends, driving the second support block 313 to move linearly outward from the outer casing 1, and the protective cover 2 is opened via the connecting rod 321. In this embodiment, the connecting rod 321 is a bent rod, which can reduce the extension distance required by the telescopic rod 311 when opening the protective cover 2.

[0039] like Figure 3 As shown, the protective cover 2 is provided with a slide rail 22, and a first slider 21 is slidably installed in the slide rail 22. The first slider 21 is rotatably connected to the outer shell 1. When the flip cover assembly 3 is working, the drive device 31 applies an outward force to the protective cover 2 through the first transmission mechanism 6, causing the first slider 21 to slide relative to the outer shell 1 while rotating. The simultaneous sliding of the protective cover 2 relative to the outer shell 1 reduces the extension distance required for the telescopic rod 311 to open the protective cover 2.

[0040] In this embodiment, two flip-cover assemblies 3 are provided. Mounting plates 14 are provided on two opposing inner walls of the outer shell 1 that are perpendicular to the inner wall where the detection head 4 is located. The two flip-cover assemblies 3 are respectively mounted on the two mounting plates 14. A first support block 312 is fixedly mounted on the mounting plate 14. The telescopic rod 311 includes a motor and a push rod. The motor is fixedly mounted on the first support block 312.

[0041] A pad 11 is provided on the top of the outer casing 1. When the protective cover 2 is parallel to the top wall of the outer casing 1, the protective cover 2 contacts the pad 11. When the protective cover 2 is opened, the pad 11 can prevent the protective cover 2 from directly impacting the outer casing 1, thus playing a cushioning role.

[0042] The working principle of the extrusion die temperature detection component in this embodiment is as follows: When the flip cover component 3 is working, the telescopic rod 311 extends, driving the second support block 313 to move linearly to the outside of the outer shell 1, applying an outward force to the protective cover 2, causing the first slider 21 to slide relative to the outer shell 1 while rotating, and the protective cover 2 to slide relative to the outer shell 1 while rotating, until the protective cover 2 contacts the pad block 11.

[0043] Example 3

[0044] This embodiment is the third embodiment of the extrusion die temperature detection component of this utility model. This embodiment is similar to embodiment two, except that, as Figure 2 and Figure 4 As shown, the push-pull assembly 5 includes a slide rail frame 51 and a second slider 52. The slide rail frame 51 is fixedly installed inside the outer casing 1, and the second slider 52 is slidably installed on the slide rail frame 51. The detection head 4 is fixed on the second slider 52. When the protective cover 2 moves, the detection head 4 is driven to move outward through the first transmission mechanism 6, thereby driving the second slider 52 to move along the slide rail frame 51.

[0045] like Figure 4 As shown, the detection head 4 includes a connecting frame 41, a fixing rod 42, and a temperature detector 43. The connecting frame 41 is fixedly connected to the second slider 52. The fixing rod 42 is disposed on the connecting frame 41, and the temperature detector 43 is mounted on the fixing rod 42. A rotating shaft 44 is disposed on the connecting frame 41 and is connected to the first transmission mechanism 6. The protective cover 2 applies a force to the connecting frame 41 and the second slider 52 towards the outside of the outer casing 1 through the first transmission mechanism 6, causing the connecting frame 41 to slide outward from the outer casing 1, which in turn drives the fixing rod 42 and the temperature detector 43 to slide outward. After the temperature detector 43 moves outside the opening, it measures the temperature of the pipe 72.

[0046] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A temperature detection component for an extrusion die, characterized in that, The device includes an outer shell (1) with an opening, a protective cover (2), and a detection head (4) for detecting temperature. The protective cover (2) is installed on the opening of the outer shell (1), and the detection head (4) is installed inside the outer shell (1). The protective cover (2) isolates the detection head (4) from the outside. The outer shell (1) is provided with a flip-top assembly (3) and a push-pull assembly (5). The flip-top assembly (3) is connected to the protective cover (2), and the push-pull assembly (5) is connected to the detection head (4). A first transmission mechanism (6) is provided between the protective cover (2) and the detection head (4).

2. The extrusion die temperature detection component according to claim 1, characterized in that, The first transmission mechanism (6) includes a transmission plate (61), one end of which is connected to the protective cover (2) and the other end is connected to the detection head (4).

3. The extrusion die temperature detection component according to claim 2, characterized in that, The detection head (4) is provided with a rotating shaft (44), the transmission plate (61) is fixedly connected to the protective cover (2), the transmission plate (61) is provided with a slot (611), the rotating shaft (44) passes through the slot (611) and is movably connected to the slot (611), the protective cover (2) is rotatably connected to the outer shell (1), and the detection head (4) is slidably connected to the inner wall of the outer shell (1).

4. The extrusion die temperature detection component according to claim 3, characterized in that, The connection point between the protective cover (2) and the outer shell (1) is located on the side wall opposite to the side wall where the detection head (4) is located.

5. The extrusion die temperature detection component according to claim 1, characterized in that, The flip cover assembly (3) includes a drive device (31) and a second transmission mechanism (32). One end of the second transmission mechanism (32) is connected to the output end of the drive device (31), and the other end is connected to the protective cover (2).

6. The extrusion die temperature detection component according to claim 5, characterized in that, The drive device (31) includes a telescopic rod (311) and a second support block (313). The telescopic rod (311) is fixedly installed on the inner wall of the outer shell (1). The second transmission mechanism (32) includes a connecting rod (321) and a third support block (322). The output end of the telescopic rod (311) is fixedly connected to the second support block (313). One end of the connecting rod (321) is rotatably connected to the second support block (313), and the other end is rotatably connected to the third support block (322). The third support block (322) is fixed on the protective cover (2).

7. The extrusion die temperature detection component according to claim 6, characterized in that, The protective cover (2) is provided with a slide rail (22), and a first slider (21) is slidably installed in the slide rail (22). The first slider (21) is rotatably connected to the outer shell (1).

8. The extrusion die temperature detection component according to claim 1, characterized in that, The push-pull assembly (5) includes a slide rail (51) and a second slider (52). The slide rail (51) is fixedly installed inside the housing (1), and the second slider (52) is slidably installed on the slide rail (51). The detection head (4) is fixed on the second slider (52).

9. The extrusion die temperature detection component according to claim 8, characterized in that, The detection head (4) includes a connecting frame (41), a fixing rod (42), and a temperature detector (43). The connecting frame (41) is fixedly connected to the second slider (52). The fixing rod (42) is disposed on the connecting frame (41). The temperature detector (43) is mounted on the fixing rod (42). A rotating shaft (44) is disposed on the connecting frame (41). The rotating shaft (44) is connected to the first transmission mechanism (6).

10. The extrusion die temperature detection assembly according to any one of claims 1 to 9, characterized in that, The outer casing (1) is provided with a cooling fan (12) and vents (13).

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