Detachable temperature measuring device for cable extruder

Abstract

The utility model relates to the technical field of cable equipment, in particular to a detachable temperature measuring device for a cable extruder, which is used for being mounted outside the extruder and detecting the temperature of different parts of the extruder, and comprises a left bracket, a right bracket and a temperature measuring assembly detachably arranged on the left bracket and the right bracket, the left support and the right support are arranged outside the extruder in a sleeving mode, one end of the left support and one end of the right support are rotatably connected into a whole, the other end of the left support and the other end of the right support are provided with strong magnetic parts, the strong magnetic parts can abut against the extruder, the temperature measuring assembly comprises an installation part and a detection part, and the installation part is installed on the left support and the right support. According to the utility model, the temperature measuring assemblies are arranged at different positions on the left bracket and the right bracket, and the distribution density between the temperature measuring assemblies is adaptively adjusted according to different heating and cooling of the extruder, so that the accuracy and the stability of detection are further improved.

Description

Technical Field

[0001] This utility model relates to the field of cable equipment technology, and in particular to a detachable temperature measuring device for a cable extruder. Background Technology

[0002] Extruders are now widely used in cable processing. They heat and melt materials into a viscous fluid state, then use the extrusion action of a screw to push this fluid material through a die, shaping it into a form with a cross-section similar to the die's shape. An extruder mainly consists of a transmission device, a feeding device, a barrel, and a screw. It uses an assembly structure with a casing and an inner bushing. During production, the barrel and screw are fitted into the inner bushing. Heating elements in the inner bushing heat the barrel and screw to melt the material into a viscous fluid state. There is an assembly gap between the inner bushing and the casing for heat insulation and ventilation cooling, enabling temperature control of the inner bushing. Existing temperature probes are typically mounted on the casing. To achieve dynamic monitoring, for example, Chinese patent CN206825880U discloses a high-precision temperature-measuring extruder liner, including a temperature probe and a liner that can be assembled into the casing. A pre-embedded hole is provided on the outer side of the liner, and the temperature probe is fixedly installed in the pre-embedded hole. A heat-conducting medium is provided between the temperature probe and the inner wall of the pre-embedded hole, and the heat-conducting medium is located on the top of the temperature probe and / or around it. This patent improves the accuracy of material temperature control and reduces temperature loss caused by assembly gaps and long-distance temperature transmission. However, because ventilation is required in the assembly gap between the liner and the casing, measuring the temperature at only a fixed location cannot accurately obtain the temperature of the material inside the barrel, thus making it impossible to precisely control the material temperature and its stability.

[0003] Therefore, it is necessary for those skilled in the art to provide a detachable temperature measuring device for cable extruders, which provides temperature detection for different parts of the extruder and improves the accuracy and stability of its use. Utility Model Content

[0004] The purpose of this invention is to provide a detachable temperature measuring device for cable extruders, so as to solve the technical problem that the temperature detection position of cable extruders is too singular and the detection is not accurate enough in the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a detachable temperature measuring device for a cable extruder, used to be installed outside the extruder and to detect the temperature of different parts of the extruder. The temperature measuring device includes a left support and a right support, and a temperature measuring component detachably mounted on the left and right supports. The left and right supports are sleeved outside the extruder, and one end of the left and right supports is rotatably connected as a whole. The other end of the left and right supports is provided with a strong magnetic part, which can abut against the extruder. The temperature measuring component includes a mounting component and a detection component. The mounting component is mounted on the left and right supports, and the detection component can extend into the interior of the extruder.

[0006] Furthermore, each of the left or right supports is provided with three temperature measuring components. The axis of the temperature measuring component located in the middle is horizontally arranged on the left or right support. The angle between the temperature measuring component near the rotating shaft and the temperature measuring component located in the middle is β, and the angle between the temperature measuring component far from the rotating shaft and the temperature measuring component located in the middle is α, wherein α < β and α + β < 90°.

[0007] Furthermore, the left and right supports are semi-circular arc-shaped structures, and mounting holes are provided radially on the left and right supports. The mounting holes penetrate the wall of the left or right support, and the axis of the mounting holes passes through the center of the left or right support.

[0008] Furthermore, positioning holes are also provided on the circumferential surfaces of the left and right supports. The positioning holes are arranged coaxially with the mounting holes, with one positioning hole corresponding to one mounting hole. The positioning holes are opened inward from the circumferential surface of the left or right support, and the temperature measuring component is connected in conjunction with the mounting hole and the positioning hole.

[0009] Furthermore, one end of the left bracket is provided with a rotating hole, and one end of the right bracket is provided with a rotating shaft. The rotating shaft is connected in the rotating hole, and the left and right brackets rotate around the axis of the rotating shaft. The strong magnet is provided on the left and right brackets at the ends away from the rotating shaft.

[0010] Furthermore, the mounting component has a cylindrical boss structure, with one part of the mounting component threaded into the mounting hole and the other part abutting against the positioning hole.

[0011] Furthermore, the mounting component has knurled edges on its wall inside the positioning hole, and the detection component penetrates the wall of the mounting component along its axis.

[0012] The beneficial effects of this invention are as follows: By setting a strong magnetic component, the left and right supports can be switched at any time for detection, thereby greatly improving the detection range and convenience. Simultaneously, by setting temperature measuring components at different positions on the left and right supports, and adjusting the distribution density of the temperature measuring components to suit the different heating and cooling characteristics of the extruder, the accuracy and stability of the detection are improved. Attached Figure Description

[0013] Figure 1 This is a perspective view of the detachable temperature measuring device for a cable extruder according to this utility model.

[0014] Figure 2 This is a front sectional view of the detachable temperature measuring device for a cable extruder according to this utility model.

[0015] Figure 3 This is a perspective view of the detachable temperature measuring device for a cable extruder according to this utility model (extruder omitted).

[0016] Figure 4 yes Figure 3 Exploded view.

[0017] Figure 5 yes Figure 3 The main view.

[0018] Figure 6 yes Figure 3 The right view.

[0019] Figure 7 yes Figure 6 Sectional view along the middle AA.

[0020] The components in the attached diagram are labeled as follows: 10. Extruder; 11. Extrusion cylinder; 12. Extruder housing; 13. Gap; 14. Blower; 15. Ventilation and detection port; 17. Feed port; 20. Left support; 21. Right support; 22. Mounting hole; 23. Positioning hole; 24. Strong magnet; 25. Temperature measuring component; 26. Mounting component; 27. Detection component. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] Please see Figure 1 , Figure 3This utility model provides a detachable temperature measuring device for a cable extruder, which is installed on the outside of the extruder 10. The temperature measuring device includes a left support 20 and a right support 21, and a temperature measuring component 25 detachably mounted on the left support 20 and the right support 21. The temperature measuring component 25 is used to detect the temperature of different parts of the extruder 10.

[0023] Further, see Figure 1 , Figure 2 The extruder 10 includes an extrusion cylinder 11 and an extruder housing 12 sleeved outside the extrusion cylinder 11. A gap 13 is left between the extrusion cylinder 11 and the extruder housing 12. A blower 14 is provided at the bottom of the extruder 10. The air outlet of the blower 14 penetrates the wall of the extruder housing 12 and connects to the gap 13. The extruder 10 is provided with a plurality of ventilation detection ports 15, which penetrate the wall of the extruder housing 12 and connect to the gap 13.

[0024] In this embodiment, the extrusion cylinder 11 includes a screw barrel and a screw rotatably disposed within the screw barrel. Multiple heating devices are segmented within the screw barrel, including but not limited to resistance heating rods. These heating devices heat different parts of the extrusion cylinder 11 at different temperatures as needed. The extruder 10 has a feed port 17 connected to the extrusion cylinder 11. The extrusion cylinder 11 is isolated from the extruder housing 12. The heating devices heat the extrusion cylinder 11, and the heat generated during heating enters the gap 13. In use, material is added to the extrusion cylinder 11 through the feed port 17. The heating devices melt the material, while simultaneously driving the screw to rotate within the screw barrel, thus extruding the material. During operation, the extrusion cylinder 11 generates a large amount of heat. A blower 14 blows cold air into the gap 13, and the heat radiating from the surface of the extrusion cylinder 11 is blown out through the ventilation detection port 15, thereby cooling the extrusion cylinder 11. As can be seen from the above, the cold air moves upward from the bottom of the gap 13, thereby creating a temperature gradient around the circumference inside the extrusion cylinder 11. At the same time, since the processing temperature is different in different parts of the extrusion cylinder 11, the extrusion cylinder 11 also has a certain temperature gradient along the axial direction.

[0025] Understandably, this utility model only describes the process of heat generation and flow in the extruder 10, and other specific structures of the extruder 10 will not be elaborated here.

[0026] See also Figure 1 , Figure 3 , Figure 4 , Figure 5The left support 20 and the right support 21 have a semi-circular arc structure and are sleeved on the outside of the extruder 10. The detection component of the temperature measuring assembly 25 passes through the extruder housing 12 and extends into the gap 13. The left support 20 and the right support 21 are rotatably connected together. The left support 20 and the right support 21 have radially opened mounting holes 22. The mounting holes 22 penetrate the wall of the left support 20 or the right support 21, and the axis of the mounting holes 22 passes through the center of the left support 20 or the right support 21.

[0027] Positioning holes 23 are also provided on the circumferential surfaces of the left support 20 and the right support 21. The positioning holes 23 are arranged coaxially with the mounting holes 22, with one positioning hole 23 corresponding to one mounting hole 22. The positioning holes 23 are opened inward from the circumferential surface of the left support 20 or the right support 21. The temperature measuring component 25 is fitted and connected in the mounting holes 22 and the positioning holes 23.

[0028] Furthermore, one end of the left support 20 is provided with a rotating hole (not shown in the figure), and one end of the right support 21 is provided with a rotating shaft (not shown in the figure). The rotating shaft is connected to the rotating hole, and the left support 20 and the right support 21 rotate around the axis of the rotating shaft. A strong magnetic part 24 is provided at the end of the left support 20 and the right support 21 away from the rotating shaft. The strong magnetic part 24 faces the extruder 10 and can abut against and adhere to the extruder 10. The strong magnetic part 24 is close to the blower 14.

[0029] In this embodiment, the material of the strong magnetic part 24 includes, but is not limited to, magnets. By providing the strong magnetic part 24, this invention allows the left support 20 and right support 21 to change their detection positions at any time, thereby greatly improving the detection range and convenience.

[0030] Further, see Figure 5 Each of the left support 20 and right support 21 is equipped with three temperature measuring components 25. The axis of the temperature measuring component 25 located in the middle is horizontally arranged on the left support 20 or right support 21. The angle between the temperature measuring component 25 near the rotating shaft and the temperature measuring component 25 located in the middle is β, and the angle between the temperature measuring component 25 away from the rotating shaft and the temperature measuring component 25 located in the middle is α. α < β, α + β < 90°.

[0031] Because there are temperature gradients both circumferentially and axially within the extrusion cylinder 11, the temperature sensing components 25 located at the bottom of the extruder 10 are more densely packed to ensure detection accuracy. The bottom of the extruder 10 is close to the fan, experiencing constant hot and cold cycles and large temperature variations; the denser density of the temperature sensing components 25 effectively guarantees detection accuracy. Conversely, the temperature sensing components 25 located at the top of the extruder 10 are more dispersed. The top of the extruder 10 is used to exhaust cooled hot air, which has less impact on the extrusion cylinder 11 and the material inside the extruder 11. Therefore, temperature detection can be more dispersed, requiring only the detection of a wider temperature range.

[0032] This invention improves the accuracy and stability of detection by setting temperature measuring components 25 at different positions on the extruder 10 and adjusting the distribution density of the temperature measuring components 25 according to the different heating and cooling adaptability of the extruder 10.

[0033] See also Figure 6 , Figure 7 The temperature measuring component 25 includes a mounting component 26 and a detection component 27. The mounting component 26 has a cylindrical boss structure. Part of the mounting component 26 is threaded into the mounting hole 22, and the other part abuts against the positioning hole 23. The wall of the mounting component 26 within the positioning hole 23 is knurled to ensure connection stability. The detection component 27 passes through the wall of the mounting component 26 along its axis. The detection head of the detection component 27 passes through the extruder housing 12 and extends into the gap 13 to ensure detection accuracy. The detection component is a commercially available temperature tester used to detect the internal temperature of the extruder 10.

[0034] Understandably, the extruder housing 12 has multiple through holes pre-set, which penetrate the extruder housing 12 and extend into the gap 13. The detection component 27 is connected in the through holes to facilitate detection by the detection component 27. The through holes that are not detected are sealed with sealing caps to ensure the stability of the extruder 10 in operation.

[0035] The specific operation method of this utility model is as follows: the left support 20 and the right support 21 are installed on the extruder 10, and the strong magnet 24 is used to fix the left support 20 and the right support 21 to the extruder 10. The temperature measuring component 25 is installed on the left support 20 and the right support 21 to complete the real-time control of the temperature inside the extruder 10.

[0036] This invention, by incorporating a strong magnetic section 24, allows the left support 20 and right support 21 to be switched at any time for detection, thereby greatly improving the detection range and convenience. Furthermore, by setting temperature measuring components 25 at different positions on the left support 20 and right support 21, and adjusting the distribution density of the temperature measuring components 25 to suit the different heating and cooling characteristics of the extruder 10, this invention improves the accuracy and stability of detection.

[0037] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A detachable temperature measuring device for a cable extruder, used for installation outside the extruder (10) to detect the temperature of different parts of the extruder (10), characterized in that, The temperature measuring device includes a left support (20) and a right support (21) and a temperature measuring component (25) detachably mounted on the left support (20) and the right support (21). The left support (20) and the right support (21) are sleeved on the outside of the extruder (10). One end of the left support (20) and the right support (21) are rotatably connected as one unit. The other end of the left support (20) and the right support (21) is provided with a strong magnetic part (24). The strong magnetic part (24) can abut against the extruder (10). The temperature measuring component (25) includes a mounting part (26) and a detection part (27). The mounting part (26) is mounted on the left support (20) and the right support (21). The detection part (27) can extend into the inside of the extruder (10).

2. The detachable temperature measuring device for a cable extruder according to claim 1, characterized in that, Each of the left support (20) or the right support (21) is provided with three temperature measuring components (25). The axis of the temperature measuring component (25) located in the middle is horizontally arranged on the left support (20) or the right support (21). The included angle between the temperature measuring component (25) close to the rotating shaft and the temperature measuring component (25) located in the middle is β, and the included angle between the temperature measuring component (25) far from the rotating shaft and the temperature measuring component (25) located in the middle is α. α < β, α + β < 90°.

3. The detachable temperature measuring device for a cable extruder according to claim 1, characterized in that, The left bracket (20) and the right bracket (21) are semi-circular arc structures. The left bracket (20) and the right bracket (21) are provided with mounting holes (22) along the radial direction. The mounting holes (22) penetrate the wall of the left bracket (20) or the right bracket (21) and the axis of the mounting holes (22) passes through the center of the left bracket (20) or the right bracket (21).

4. The detachable temperature measuring device for a cable extruder according to claim 3, characterized in that, The left bracket (20) and the right bracket (21) are also provided with positioning holes (23). The positioning holes (23) are arranged coaxially with the mounting holes (22). One positioning hole (23) corresponds to one mounting hole (22). The positioning holes (23) are opened inward from the circumferential surface of the left bracket (20) or the right bracket (21). The temperature measuring component (25) is connected in the mounting hole (22) and the positioning hole (23).

5. The detachable temperature measuring device for a cable extruder according to claim 1, characterized in that, The left bracket (20) has a rotating hole at one end, and the right bracket (21) has a rotating shaft at one end. The rotating shaft is connected in the rotating hole. The left bracket (20) and the right bracket (21) rotate around the axis of the rotating shaft. The strong magnet (24) is located on the left bracket (20) and the right bracket (21) at the end away from the rotating shaft.

6. The detachable temperature measuring device for a cable extruder according to claim 4, characterized in that, The mounting component (26) has a cylindrical boss structure. Part of the mounting component (26) is threaded into the mounting hole (22), and the other part of the mounting component (26) abuts against the positioning hole (23).

7. The detachable temperature measuring device for a cable extruder according to claim 6, characterized in that, The mounting component (26) has knurled edges on the wall inside the positioning hole (23), and the detection component (27) passes through the wall of the mounting component (26) along the axis of the mounting component (26).

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