A fixing device for cutting raw materials used in the production of thermal resistors with a pre-fixed effect

Abstract

The present invention relates to the technical field of thermosensitive device production, and specifically, to a fixing device for raw material cutting in the production of a thermal resistor with a pre-fixing effect. It includes a fixing structure, the fixing structure includes a bottom plate and an opposing body, the bottom plate is provided with support columns, the opposing body includes an outer peripheral plate, the outer peripheral plate is connected with an outer roller, the outer roller is provided with a connecting plate, and the outer roller is connected to the inner surface of the outer peripheral plate through the provided connecting plate. The outer peripheral plate is provided with an intermediate body, the intermediate body includes a spacer plate and an inner support body, the spacer plate is inserted and fitted with a pair of end bodies, the inner support body includes an inner roller, the inner roller is provided with an outer support structure, and a cutting body is provided at the top of the outer peripheral plate. By inserting the inner roller into the insulating sleeve, the outer support structure moves outward, causing the insulating sleeve to be expanded, and enabling the four outer rollers to contact the outer wall of the insulating sleeve, the present invention can prevent the outer support structure from moving outward continuously, thereby while ensuring that the insulating sleeve is expanded and shaped, avoiding the rupture of the insulating sleeve caused by the excessive expansion of the outer support structure.

Description

Technical Field

[0001] The present invention relates to the technical field of thermosensitive device production, and more specifically, to a fixing device for cutting raw materials used in the production of a thermal resistor with a pre-fixing effect. Background Technique

[0002] A thermal resistor is a temperature detector used in the medium and low temperature regions. Its temperature measurement principle is based on the characteristic that the resistance value of a metal conductor increases with the increase in temperature for temperature measurement. The thermal resistor has high measurement accuracy and is not only widely used in industrial temperature measurement but also made into a standard reference thermometer.

[0003] The thermal resistor consists of components such as a temperature sensing element, lead wires, an insulating sleeve, and a terminal box. Among them, the insulating sleeve can protect the thermal resistor from short - circuit. During the production of the thermal resistor, there are certain requirements for the length of the insulating sleeve, so that there is a space between the insulating sleeve and the temperature sensing element and air is filled. The air cavity between the insulating sleeve and the temperature sensing element can serve as an auxiliary insulating structure, reducing the sleeve capacitance and increasing the corona voltage and flashover voltage of the sleeve.

[0004] Since the insulating sleeve made of silicone material has low hardness and its tube wall is easily deformed, in order to facilitate the installation of the temperature sensing element, it is necessary to expand the inside of the insulating sleeve. Therefore, a fixing tool is used to pre - fix the shape of the insulating sleeve and facilitate subsequent cutting and processing of the insulating sleeve. However, when using an inner - support type fixture to fix the insulating sleeve, the tube wall of the insulating sleeve is over - deformed or even ruptured. When using a double - sided fixture to clamp and fix the outer surface of the insulating sleeve, the tube wall of the insulating sleeve is flattened and its inner diameter becomes too small to fit the temperature sensing element. Therefore, a fixing device for cutting raw materials used in the production of a thermal resistor with a pre - fixing effect is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a fixing device for cutting raw materials used in the production of a thermal resistor with a pre - fixing effect, so as to solve the problems raised in the above - mentioned background technique.

[0006] To achieve the above-mentioned purpose, the present invention aims to provide a fixing device for cutting raw materials for thermal resistor production with a pre-fixing effect, comprising a fixing structure, the fixing structure comprising a bottom plate and an opposing body arranged on the top of the bottom plate, the top surface of the bottom plate is symmetrically provided with support columns, the opposing body comprises a pair of outer plates, the two ends of the outer plates are plugged into and matched with the support columns, two outer rollers are connected to the two sides of the inner surface of the outer plate respectively, a connecting plate is provided on the side of the outer roller close to the inner surface of the outer plate, the outer roller is connected to the inner surface of the outer plate through the provided connecting plate, an intermediate body is provided between the two outer plates, the intermediate body comprises a spacer plate and an inner support body arranged in the spacer plate, the spacer plate is located between the two outer plates, the top of the support column passes through the two ends of the spacer plate, a pair of two end bodies are plugged into and matched on the inner surface of the spacer plate, the inner support body comprises an inner roller connected to the inner side of the two end bodies, the inner roller is provided with an outer support structure on the side away from the two end bodies, the outer support structure is used to support the inner wall of the insulating sleeve, and a cutting body is provided on the top of the outer plate.

[0007] As a further improvement of the technical solution, the inner roller is symmetrically provided with a movable groove on the surface of one end away from the two end bodies, and the external support structure includes a movable sleeve located in the movable groove, a support sleeve is inserted in the movable sleeve, an insertion shaft is provided on the inner side of the support sleeve, an external support spring is provided at the bottom of the insertion shaft, and the insertion shaft is connected to the inner surface of the movable sleeve through the arranged external support spring.

[0008] As a further improvement of the present technical solution, the cutting body includes a pressure plate and a hanging plate arranged at the bottom of the pressure plate, the pressure plate is plugged into and matched with the top of the support column, the bottom of the hanging plate is rotatably connected to a saw disk, a power groove is opened near the top of the hanging plate, a servo motor is arranged in the power groove, the servo motor is provided with a belt, and the servo motor is transmission-connected to the saw disk through the arranged belt.

[0009] As a further improvement of the technical solution, stabilizing grooves are symmetrically provided at both ends of the surface of the outer plate close to the partition plate, and stabilizing plates are symmetrically provided at both ends of the upper and lower surfaces of the partition plate, and the stabilizing plates are plugged into and matched with the stabilizing grooves.

[0010] As a further improvement of the technical solution, limited sliding grooves are provided on both sides of the two end bodies, an inner plate frame is provided in the partition plate, and sliding plates are provided at both ends of the inner plate frame, and the sliding plates are slidably connected to the limited sliding grooves.

[0011] As a further improvement of the technical solution, the partition plate has through openings symmetrically opened at both ends, a through sleeve is provided in the through opening, an extrusion spring is provided near the inner surface of the through opening, and the through sleeve is connected to the inner surface of the through opening through the extrusion spring.

[0012] As a further improvement of the technical solution, a plate groove is provided at the top of the pressing plate. The pressing plate is slidably connected to the top of the hanging plate. The inner roller is inserted and matched with the two end bodies, and the connecting plate is inserted and matched with the inner surface of the outer peripheral plate.

[0013] As a further improvement of the technical solution, the connecting plate is a cross plate. Through grooves are symmetrically provided at both ends of the outer peripheral plate. The through grooves are cross grooves, and the connecting plate is snap-fitted with the through grooves.

[0014] As a further improvement of the technical solution, opposite plates are connected to both ends of the top of the hanging plate. A sleeve plate is provided at the bottom of the opposite plate. A pair of clamping sleeves are provided on the surface of the connecting plate, and the sleeve plate is snap-fitted with the clamping sleeves.

[0015] As a further improvement of the technical solution, the opposed body further includes a connecting body. A card slot is provided at one end of the connecting plate away from the outer roller. The connecting body includes a clamping plate and a screw rod rotatably connected to the clamping plate. The clamping plate is snap-fitted with the card slot. A rotating shaft is provided at one end of the inner roller close to the two end bodies. One end of the screw rod close to the inner support body is threadedly connected to the rotating shaft.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. In the fixing device for cutting raw materials for producing thermal resistors with a pre-fixing effect, by inserting the inner roller into the insulating sleeve, the outer support structure moves outward, so that the insulating sleeve is expanded, and the four outer rollers contact the outer wall of the insulating sleeve, which can prevent the outer support structure from moving outward continuously. Thus, while ensuring that the insulating sleeve is expanded and shaped, it can avoid the rupture of the insulating sleeve caused by the excessive expansion of the outer support structure.

[0018] 2. In the fixing device for cutting raw materials for producing thermal resistors with a pre-fixing effect, through the insertion and matching method, the spacer plate can be combined and fixed with the two outer peripheral plates, thereby avoiding the loosening of the insulating sleeve caused by the relative movement of the spacer plate with respect to the outer peripheral plate during cutting, and ensuring the fixing effect on the insulating sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic diagram of the structure of the fixing bottom plate of the present invention;

[0021] Figure 3 is a schematic diagram of the structure of the opposed body of the present invention;

[0022] Figure 4 is a schematic diagram of the structure of the outer peripheral plate of the present invention;

[0023] Figure 5 Schematic cross-sectional structure diagram of the connector of the present invention;

[0024] Figure 6 Schematic structure diagram of the intermediate of the present invention;

[0025] Figure 7 Schematic cross-sectional structure diagram of the spacer of the present invention;

[0026] Figure 8 Schematic structure diagram of the inner support of the present invention;

[0027] Figure 9 Schematic cross-sectional structure diagram of one of the cutting parts of the present invention;

[0028] Figure 10 Schematic structure diagram of the second cutting part of the present invention.

[0029] The meanings of each label in the figure are as follows:

[0030] 1. Fixed structure; 11. Bottom plate; 111. Support column; 12. Opposite body; 121. Peripheral plate; 122. Outer roller; 123. Connecting plate; 124. Through groove; 125. Card sleeve; 126. Card slot; 13. Intermediate; 131. Spacer; 132. End bodies; 133. Inner plate frame; 134. Slide plate; 135. Through port; 136. Through sleeve; 14. Cutting body; 141. Pressing plate; 142. Hanging plate; 143. Saw disc; 144. Plate groove; 145. Opposite plate; 146. Sleeve plate; 15. Connector; 151. Card board; 152. Screw; 16. Inner support; 161. Inner roller; 162. Activity groove; 163. Activity sleeve; 164. Support sleeve; 165. Rotating shaft. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0033] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0034] Example 1

[0035] Please refer to Figures 1 - 10As shown in the figure, the purpose of this embodiment is to provide a fixing device for cutting raw materials used in the production of thermal resistors with a pre-fixing effect, including a fixing structure 1. The fixing structure 1 includes a bottom plate 11 and an opposing body 12 arranged on the top of the bottom plate 11. On the top surface of the bottom plate 11, support columns 111 are symmetrically arranged. The support columns 111 are inverted "T"-shaped cylinders. The opposing body 12 includes a pair of outer plates 121. The outer plates 121 include a square frame and square plates symmetrically arranged at both ends of the square frame. Through holes are opened at both ends of the outer plates 121. The through holes are circular through holes. The top of the inverted "T"-shaped cylinder structure of the support column 111 passes through the through holes. The two ends of the outer plates 121 are inserted and matched with the support columns 111. On both sides of the inner surface of the outer plates 121, two outer rollers 122 are respectively connected. On the side of the outer roller 122 close to the inner surface of the outer plate 121, there is a connecting plate 123. The outer roller 122 is connected to the inner surface of the outer plate 121 through the provided connecting plate 123. Between the two outer plates 121, there is an intermediate body 13. The intermediate body 13 includes a spacer plate 131 and an inner support body 16 arranged inside the spacer plate 131. The spacer plate 131 is located between the two outer plates 121. The spacer plate 131 includes a square frame and square plates symmetrically arranged on both sides of the square frame. The top of the support column 111 passes through both ends of the spacer plate 131. On both sides of the inner surface of the spacer plate 131, square body grooves are symmetrically opened. A pair of end bodies 132 are inserted and matched with the inner surface of the spacer plate 131. The end bodies 132 are vertical plates with a square protrusion on one side. The square protrusion of the end bodies 132 is inserted and matched with the square body grooves of the spacer plate 131. The inner support body 16 includes an inner roller 161 connected to the inner side of the end bodies 132. On the side of the inner roller 161 away from the end bodies 132, there is an outer support structure. The outer support structure is used to expand the inner wall of the insulating sleeve and pre-fix the shape of the insulating sleeve. By inserting the inner roller 161 into the insulating sleeve, the outer support structure moves outward, causing the insulating sleeve to be expanded. Placing the spacer plate 131 between the two outer plates 121 makes the four outer rollers 122 contact the outer wall of the insulating sleeve, which can prevent the outer support structure from moving outward continuously. Thus, while ensuring that the insulating sleeve is expanded and shaped, it can avoid the rupture of the insulating sleeve caused by the excessive expansion of the outer support structure. On the top of the outer plate 121, there is a cutting body 14. The cutting body 14 is used for cutting the insulating sleeve. When the insulating sleeve is clamped and fixed inside and outside by the outer support structure and the outer rollers 122, the insulating sleeve can be cut by the cutting body 14.

[0036] When this embodiment is in specific use, two inner support bodies 16 are respectively inserted from both ends of the insulating sleeve. The inner roller 161 is inserted into the two end bodies 132 at the end far from the insulating sleeve. The two end bodies 132 fixed with the insulating sleeve are clamped into the square groove on the inner surface of the spacer plate 131. The sliding plate 134 of the inner plate frame 133 slides down from the top of the two end bodies 132, so that the two end bodies 132 and the inner plate frame 133 are fixedly connected. The two ends of the spacer plate 131 slide down along the top of the support column 111 until the stabilizing plate at the bottom of the spacer plate 131 is clamped into the stabilizing groove of the bottom peripheral plate 121. Another peripheral plate 121 slides down along the top of the support column 111. Before the stabilizing plate at the top of the spacer plate 131 is clamped into the stabilizing groove of the top peripheral plate 121, the clamping plate 151 is clamped into the card slot 126, and the screw rod 152 is rotated so that the screw rod 152 is threadedly connected to one end of the inner roller 161. The pressing plate 141 slides down along the top of the support column 111, so that the pressing plate 141 moves downward, causing the peripheral plate 121 and the spacer plate 131 to overcome the elastic force of the compression spring, completing the combined fixation of the peripheral plate 121 and the spacer plate 131. At this time, under the elastic force of the outer support spring, the support sleeve 164 moves outward along the movable sleeve 163 to contact the inner wall of the insulating sleeve, expanding the insulating sleeve so that the outer wall of the insulating sleeve contacts the outer roller 122. While ensuring that the insulating sleeve is expanded and shaped, it avoids the rupture of the insulating sleeve caused by the excessive outward expansion of the support sleeve 164. The servo motor drives the saw blade 143 to rotate through a belt to cut the insulating sleeve. During cutting, the saw blade 143 moves along the plate groove 144, and drives the outer roller 122 to move synchronously along the through groove 124 through the opposing plate 145. When the outer roller 122 moves, it drives the inner roller 161 to move synchronously through the clamping plate 151, thus avoiding the outer roller 122 from hindering the cutting of the saw blade 143 and avoiding the saw blade 143 from damaging the inner support body 16.

[0037] In this embodiment, in order to expand the insulating sleeve, the inner roller 161 is a "T"-shaped cylinder. Symmetrically arranged activity grooves 162 are formed on the surface of the inner roller 161 at the end far from the two end bodies 132. The activity grooves 162 are partially annular structure grooves. The outer support structure includes a movable sleeve 163 located in the activity grooves 162. The movable sleeve 163 is a hollow cylinder. A support sleeve 164 is inserted into the movable sleeve 163. The support sleeve 164 is a partial cylinder structure with a partially annular structure groove formed on the inner side. An insertion shaft is provided inside the support sleeve 164, and an outer support spring is provided at the bottom of the insertion shaft. The insertion shaft is connected to the inner surface of the movable sleeve 163 through the provided outer support spring. When the inner roller 161 is located inside the insulating sleeve, under the elastic force of the outer support spring, the insertion shaft drives the support sleeve 164 to move outward along the movable sleeve 163 until the support sleeve 164 contacts the inner wall of the insulating sleeve. Due to the partial cylinder structure of the support sleeve 164, the insulating sleeve is approximated to a circular shape after being expanded, thus facilitating the subsequent insertion and installation of the temperature sensing element.

[0038] For the convenience of cutting the insulating sleeve, the cutting body 14 includes a pressing plate 141 and a hanging plate 142 arranged at the bottom of the pressing plate 141. Circular through-holes are formed at both ends of the pressing plate 141. The top of the support column 111 passes through the circular through-hole of the pressing plate 141, and the pressing plate 141 is in plug-in fit with the top of the support column 111. A saw disc 143 is rotatably connected to the bottom of the hanging plate 142. A power groove is formed at the top end of the hanging plate 142. The power groove is a square through-hole. A servo motor is arranged in the power groove. The servo motor is provided with a belt, and the servo motor is in transmission connection with the saw disc 143 through the arranged belt. By passing the top of the support column 111 through the pressing plate 141 and making the pressing plate 141 slide down along the support column 111, the outer plate 121 and the spacer plate 131 are extruded, so that the insulating sleeve is fixed. The servo motor makes the saw disc 143 rotate through the belt, and the saw disc 143 can cut when it contacts the surface of the insulating sleeve.

[0039] To ensure the fixing effect of the insulating sleeve, stabilizing grooves are symmetrically formed at both ends of the surface of the outer plate 121 close to the spacer plate 131. The stabilizing grooves are cubic grooves. Stabilizing plates are symmetrically arranged at both ends of the upper and lower surfaces of the spacer plate 131. The stabilizing plates are of square structures. The square structures of the stabilizing plates are inserted into the stabilizing grooves, and the stabilizing plates are in plug-in fit with the stabilizing grooves. Through the plug-in fit method, the spacer plate 131 can be combined and fixed with the two outer plates 121, thus avoiding the loosening of the insulating sleeve caused by the relative movement of the spacer plate 131 with respect to the outer plate 121 during cutting and ensuring the fixing effect of the insulating sleeve.

[0040] To ensure the stability of the two end bodies 132 during cutting of the insulating sleeve, limiting sliding grooves are formed on both sides of the two end bodies 132. An inner plate frame 133 is arranged in the spacer plate 131. The inner plate frame 133 is a "mouth"-shaped frame. Slide plates 134 are arranged at both ends of the inner plate frame 133. The slide plates 134 are inverted "U"-shaped structural plates. The slide plates 134 are in sliding connection with the limiting sliding grooves. Through the inverted "U"-shaped slide plates 134, while ensuring the stability of the two end bodies 132, the two end bodies 132 hold the slide plates 134, which can prevent the inner plate frame 133 from falling. Through the "mouth"-shaped inner plate frame 133, the insulating sleeve is fixed therein, and while connecting the two end bodies 132, it does not affect the fixing of the insulating sleeve.

[0041] In order to take out the insulating bushing after cutting it, through openings 135 are symmetrically formed at the upper and lower ends of the spacer plate 131. A through sleeve 136 is arranged in the through opening 135. The through sleeve 136 is a "T"-shaped cylinder with its upper and lower surfaces penetrating. An extrusion spring is arranged on the inner surface of the through sleeve 136 close to the inner surface of the through opening 135. The through sleeve 136 is connected to the inner surface of the through opening 135 through the arranged extrusion spring. After the cutting of the insulating bushing is completed, when the pressing plate 141 slides upward along the support column 111 and disengages, under the elastic force of the extrusion spring, the through sleeve 136 is pushed to move outward, so that the spacer plate 131 and the outer peripheral plate 121 are sprung open, thereby releasing the combined fixation of the spacer plate 131 and the outer peripheral plate 121, which is beneficial to the removal of the insulating bushing.

[0042] In order to facilitate the adjustment of the cutting position of the insulating bushing, a plate groove 144 is formed at the top end of the pressing plate 141. The plate groove 144 is a "worker"-shaped groove. A "worker"-shaped protrusion is arranged at the top of the hanging plate 142. The pressing plate 141 is slidably connected to the top of the hanging plate 142. Circular through openings are formed on the surfaces of the two end bodies 132. The inner roller 161 is inserted and matched with the two end bodies 132. The connecting plate 123 is inserted and matched with the inner surface of the outer peripheral plate 121. By means of the sliding connection and the insertion and matching, when the outer roller 122 and the inner roller 161 are moved to change the position of contact with the surface of the insulating bushing, the hanging plate 142 is slid in the plate groove 144 to change the position of contact between the saw blade 143 and the surface of the insulating bushing, thereby facilitating the adjustment of the cutting position of the insulating bushing.

[0043] Since the acting force of the saw blade 143 during the cutting of the insulating bushing will cause the insulating bushing to rotate, thus affecting the cutting effect of the insulating bushing. In order to prevent the rotation of the insulating bushing, the connecting plate 123 is a cross-shaped plate. Cross-shaped through grooves 124 are symmetrically formed at both ends of the outer peripheral plate 121. The connecting plate 123 is clamped and matched with the through groove 124. By means of the clamping and matching, when the insulating bushing is being cut, due to the clamping of the connecting plate 123 and the through groove 124, the outer roller 122 in contact with the surface of the insulating bushing itself will not rotate, thereby preventing the rotation of the insulating bushing and avoiding affecting the cutting effect of the insulating bushing.

[0044] In order to prevent the saw blade 143 from being blocked by the outer roller 122 during cutting, two opposite plates 145 are connected to the two ends of the top of the hanging plate 142. A sleeve plate 146 is arranged at the bottom of the opposite plate 145. A pair of clamping sleeves 125 are arranged on the surface of the connecting plate 123. The sleeve plate 146 is clamped and matched with the clamping sleeve 125. By means of the clamping and matching, when the saw blade 143 moves for cutting, the hanging plate 142 drives the outer roller 122 to slide along the through groove 124 through the connected opposite plates 145, that is, the outer roller 122 moves synchronously with the saw blade 143, thereby preventing the outer roller 122 from obstructing the moving cutting of the saw blade 143.

[0045] To avoid damage to the inner support body 16 located inside the insulating sleeve during the cutting of the saw blade 143, the opposing body 12 further includes a connecting body 15. A clamping groove 126 is formed at one end of the connecting plate 123 away from the outer roller 122. The clamping groove 126 is a square groove. The connecting body 15 includes a clamping plate 151 and a screw rod 152 rotatably connected to the clamping plate 151. The clamping plate 151 is in clamping fit with the clamping groove 126. A rotating shaft 165 is formed at one end of the inner roller 161 close to the end bodies 132. One end of the screw rod 152 close to the inner support body 16 is threadedly connected to the rotating shaft 165. When the saw blade 143 drives the outer roller 122 to move during cutting, the clamping plate 151 clamped with the connecting plate 123 drives the inner support body 16 to move synchronously inside the insulating sleeve through the screw rod 152 threadedly connected to the rotating shaft 165, thereby avoiding damage to the inner support body 16 located inside the insulating sleeve during the cutting of the saw blade 143.

[0046] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A fixing device for cutting raw materials for thermal resistor production with pre-fixing effect, Features: The fixed structure (1) comprises a bottom plate (11) and an opposing body (12) arranged on the top of the bottom plate (11), the top surface of the bottom plate (11) is symmetrically provided with support columns (111), the opposing body (12) comprises a pair of peripheral plates (121), both ends of the peripheral plates (121) are plugged into and matched with the support columns (111), two outer rollers (122) are respectively connected to the two sides of the inner surface of the peripheral plate (121), a connecting plate (123) is provided on the side of the outer roller (122) close to the inner surface of the peripheral plate (121), the outer roller (122) is connected to the inner surface of the peripheral plate (121) through the provided connecting plate (123), and the two peripheral plates (121) are connected to each other. An intermediate body (13) is provided in between, the intermediate body (13) comprising a partition plate (131) and an inner support body (16) arranged in the partition plate (131), the partition plate (131) is located between the two outer plates (121), the top of the support column (111) passes through the two ends of the partition plate (131), the inner surface of the partition plate (131) is plugged with a pair of two end bodies (132), the inner support body (16) comprises an inner roller (161) connected to the inner side of the two end bodies (132), the inner roller (161) is provided with an outer support structure on a side away from the two end bodies (132), the outer support structure is used to support the inner wall of the insulating sleeve, and the top of the outer plate (121) is provided with a cutting body (14); A movable groove (162) is symmetrically formed on the surface of one end of the inner roller (161) away from the two end bodies (132); the external support structure comprises a movable sleeve (163) located in the movable groove (162); a support sleeve (164) is inserted into the movable sleeve (163); an insertion shaft is provided on the inner side of the support sleeve (164); an external support spring is provided at the bottom of the insertion shaft; the insertion shaft is connected to the inner surface of the movable sleeve (163) via the external support spring.

2. The fixing device for cutting raw materials for thermal resistor production with pre-fixing effect according to claim 1, Features: The cutting body (14) comprises a pressing plate (141) and a hanging plate (142) arranged at the bottom of the pressing plate (141); the pressing plate (141) is plugged into the top of the supporting column (111); the bottom of the hanging plate (142) is rotatably connected to a saw disc (143); a power slot is provided at the top of the hanging plate (142); a servo motor is provided in the power slot; the servo motor is provided with a belt; the servo motor is transmission-connected to the saw disc (143) via the provided belt.

3. The fixing device for cutting raw materials for thermal resistor production with pre-fixing effect according to claim 1, Features: The outer plate (121) has symmetrically provided stabilizing grooves at both ends of a surface of one side close to the partition plate (131), and symmetrically provided stabilizing plates at both ends of the upper and lower surfaces of the partition plate (131), the stabilizing plates being plugged into and matched with the stabilizing grooves.

4. The fixing device for cutting raw materials used in the production of thermal resistors with a pre-fixing effect according to claim 1, characterized in that: Limited sliding grooves are provided on both sides of the two end bodies (132), an inner plate frame (133) is provided inside the spacer plate (131), sliding plates (134) are provided at both ends of the inner plate frame (133), and the sliding plates (134) are slidably connected to the limited sliding grooves.

5. The fixing device for cutting raw materials used in the production of thermal resistors with a pre-fixing effect according to claim 1, characterized in that: Through openings (135) are symmetrically provided at the upper and lower ends of the spacer plate (131), a through sleeve (136) is provided inside the through opening (135), an extrusion spring is provided on the inner surface of the through sleeve (136) close to the inner side of the through opening (135), and the through sleeve (136) is connected to the inner surface of the through opening (135) through the provided extrusion spring.

6. The fixing device for cutting raw materials used in the production of thermal resistors with a pre-fixing effect according to claim 2, characterized in that: A plate groove (144) is provided at the top of the pressing plate (141), the pressing plate (141) is slidably connected to the top of the hanging plate (142), the inner roller (161) is inserted and matched with the two end bodies (132), and the connecting plate (123) is inserted and matched with the inner surface of the outer peripheral plate (121).

7. The fixing device for cutting raw materials used in the production of thermal resistors with a pre-fixing effect according to claim 1, characterized in that: The connecting plate (123) is a cross plate, through grooves (124) are symmetrically provided at both ends of the outer peripheral plate (121), the through grooves (124) are cross grooves, and the connecting plate (123) is snap-fitted with the through grooves (124).

8. The fixing device for cutting raw materials used in the production of thermal resistors with a pre-fixing effect according to claim 2, characterized in that: Opposing plates (145) are connected to both ends of the top of the hanging plate (142), a sleeve plate (146) is provided at the bottom of the opposing plate (145), a pair of clamping sleeves (125) are provided on the surface of the connecting plate (123), and the sleeve plate (146) is snap-fitted with the clamping sleeves (125).

9. The fixing device for cutting raw materials used in the production of thermal resistors with a pre-fixing effect according to claim 1, characterized in that: The opposing body (12) further includes a connecting body (15), a clamping groove (126) is provided at one end of the connecting plate (123) away from the outer roller (122), the connecting body (15) includes a clamping plate (151) and a screw rod (152) rotatably connected to the clamping plate (151), the clamping plate (151) is snap-fitted with the clamping groove (126), a rotating shaft (165) is provided at one end of the inner roller (161) close to the two end bodies (132), and the screw rod (152) is threadedly connected to the rotating shaft (165) at one end close to the inner support body (16).

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