Precision core tube forming equipment and forming method

Abstract

The present application provides a precision core tube forming device and a forming method thereof, which relates to the field of core tube production. The device comprises: an extruder arranged on a base, a support assembly for supporting the core tube arranged on the base, a cooling assembly arranged on the extruder, and a detection mechanism arranged on the base. The present application has the effect of improving the productivity of the core tube.

Description

Technical Field

[0001] The present application relates to the field of core-rolled tube production, and in particular to precision core-rolled tube forming equipment and a forming method thereof. Background Art

[0002] A winding core tube is a component used to roll up various films, tapes, paper and other strip products to facilitate the storage and transportation of products. The materials of the winding core tube vary, including paper winding core tubes, plastic winding core tubes and metal winding core tubes, depending on the product to be rolled.

[0003] At present, plastic core tubes are the most common core tubes on the market. Plastic core tubes are usually produced using plastic extruders.

[0004] However, since the extrusion force of the plastic extruder may be uneven, resulting in an uneven surface, if the plastic core tube has an uneven surface, it cannot play a good role in curling the object; but if the surface unevenness can only be detected after the plastic core tube is fully prepared, it will not only affect the production efficiency of the plastic core tube, but also the yield of the plastic core tube will be greatly reduced. Summary of the invention

[0005] In order to improve the problems existing in the above-mentioned technology, the present application provides precision core roll tube forming equipment and forming method thereof.

[0006] In the first aspect, the present application provides a precision core tube forming device, which adopts the following technical solution: The precision core tube forming equipment comprises: an extruder arranged on a base, the base is provided with a support assembly for supporting the core tube, the extruder is provided with a cooling assembly, and the base is provided with a detection mechanism.

[0007] By adopting the above technical solution, the detection mechanism can detect whether there are uneven areas on the surface of the winding core tube, so that the detection can be carried out during the production process of the winding core tube to improve production efficiency and yield rate.

[0008] Optionally, the support assembly includes: a support ring, a support plate and a support cylinder, the support ring is installed on a base, the support cylinder is installed in the support ring, and the output shaft of the support cylinder is fixedly connected to the support plate.

[0009] By adopting the above technical solution, during support, the winding core tube passes through the support ring; at the same time, the support cylinder is started to push the support plate and the winding core tube to stick to each other, thereby supporting the winding core tube, and can support winding core tubes of different diameters.

[0010] Optionally, the cooling component includes: a fan and a cooling ring, the cooling ring is fixed on the extruder, a cooling cavity is opened on the cooling ring, and a cooling hole is opened through the inner wall of the cooling cavity, an air inlet hole is opened through the inner wall of the cooling cavity, and the fan is installed in the air inlet hole.

[0011] By adopting the above technical solution, the fan is started to pump air into the cooling chamber, and the air is blown to the core tube through the air outlet to cool the core tube, thereby facilitating rapid molding of the core tube.

[0012] Optionally, the detection mechanism includes: a rough detection component, the rough detection component includes: a sealing part, a supplementing part and a rough detection part, the sealing part includes: a rough detection ring, a sealing ring and a connecting pipe, the rough detection ring is installed on the base, the sealing ring is fixed on the rough detection ring, a sealing cavity is defined on the sealing ring, a water inlet cavity is defined on the rough detection ring, one end of the connecting pipe is connected to the sealing cavity, and the other end is connected to the water inlet cavity, the supplementing part is arranged on the rough detection ring, and the rough detection part is arranged between the rough detection ring and the supplementing part.

[0013] By adopting the above technical solution, when the winding core tube passes through the thick detection ring, water is transported to the water inlet cavity, and the water in the water inlet cavity enters the sealing cavity through the water inlet pipe, thereby causing the sealing ring to expand until the sealing ring and the winding core tube are tightly attached, thereby facilitating detection; and the water in the sealing ring can also cool the winding core tube.

[0014] Optionally, the replenishing part includes: a water tank, a water replenishing pipe and a water pump, the water tank is fixed on the coarse detection ring, the water pump is arranged on the coarse detection part, one end of the water replenishing pipe is connected to the water tank, and the other end is connected to the water pump.

[0015] By adopting the above technical solution, during the rough detection, the water pump is started to pump the water in the water tank to the rough detection part, thereby facilitating the detection.

[0016] Optionally, the coarse detection part includes: a detection box, a liquid level sensor and a water inlet pipe, the detection box is fixed on the coarse detection ring, and the water pump is installed on the detection box, the liquid level sensor is installed in the detection box, one end of the water inlet pipe is connected to the detection box, and the other end is connected to the water inlet cavity, and a water outlet hole is opened through the inner wall of the water inlet cavity.

[0017] By adopting the above technical solution, if the liquid level sensor detects that the water level in the detection box drops sharply, it proves that the surface of the winding core tube has large and obvious uneven areas.

[0018] Optionally, the rough detection component also includes: a wiping dryer portion, the wiping dryer portion includes: an expansion ring, a connecting tube and a wiping cloth, the expansion ring is fixed to the rough detection ring, and an expansion cavity is provided on the expansion ring, one end of the connecting tube is connected to the water inlet cavity, and the other end is connected to the expansion cavity, and the wiping dryer portion is fixed to the expansion ring.

[0019] By adopting the above technical solution, when the water in the test box flows into the water inlet chamber, the water in the water inlet chamber flows into the expansion chamber through the connecting pipe, so that the expansion circle increases until the drying cloth is in close contact with the winding core tube, so that the drying cloth can wipe off the water on the surface of the winding core tube.

[0020] Optionally, the detection mechanism also includes: a precision detection component, the precision detection component includes: a closing part and a precision detection part, the closing part includes: a closing ring and a precision detection ring, the precision detection ring is fixed on the base, the closing ring is fixed on the precision detection ring, and the precision detection part is arranged between the closing ring and the precision detection ring.

[0021] By adopting the above technical solution, a closed space can be formed between the sealing ring, the precision detection ring and the winding core tube for easy detection.

[0022] Optionally, the precision detection part includes: an air box, a solenoid valve, a ventilation pipe, an air connecting pipe, a pressure plate, a tension spring, a compression spring, a pressure block, a pressure sensor and a sealing sleeve, the air box is fixed on the precision detection ring, the pressure plate is arranged in the air box, the tension spring is fixed between the pressure plate and the inner wall of the air box, one end of the compression spring is fixed to the pressure plate, and the other end is fixed to the pressure block, the pressure sensor is fixed in the air box, an air inlet cavity is provided on the precision detection ring, and an air outlet hole is provided through the inner wall of the air inlet cavity, a closed cavity is provided on the closed ring, one end of the ventilation pipe is connected with the air box, and the other end is connected with the air inlet cavity, and the solenoid valve is installed on the ventilation pipe, one end of the connecting pipe is connected with the air inlet cavity, and the other end is connected with the closed cavity, and the sealing sleeve is sleeved on the pressure plate.

[0023] By adopting the above technical solution, when the winding core tube passes through the precision detection ring, the solenoid valve is controlled to open the ventilation pipe. At this time, the pressure plate moves down to press the gas in the air box into the air inlet cavity, and then enters the closed space formed by the two sealing rings, the precision detection ring and the winding core tube through the air outlet and the connecting air pipe, and then into the closed cavity; as the winding core tube continues to move, if the data detected by the pressure sensor suddenly changes, it proves that the surface of the winding core tube has uneven places.

[0024] In the second aspect, the present application provides a forming method of a precision core tube forming device, which adopts the following technical solution: The forming method of the precision core tube forming equipment comprises the following steps: S1: placing the material in the extruder and extruding the core tube; S2: When the core tube passes through the coarse detection assembly, the coarse detection assembly will detect the surface of the core tube to detect whether there are any uneven areas; S3: When the winding core tube passes through the fine detection component, the fine detection component will further detect the surface of the winding core tube to detect whether there are any uneven areas.

[0025] By adopting the above technical solution, the productivity of the winding core tube can be improved.

[0026] In summary, the present application includes at least one of the following beneficial effects: 1. The detection mechanism can detect whether there are any uneven areas on the surface of the core tube, so that the detection can be carried out during the production process of the core tube to improve production efficiency and yield rate.

[0027] 2. During support, the core tube passes through the support ring; at the same time, the support cylinder is started to push the support plate and the core tube to stick together, so as to support the core tube, and can support core tubes of different diameters.

[0028] 3. Start the fan to pump air into the cooling chamber, and the air is blown to the core tube through the air outlet to cool the core tube, thereby facilitating rapid molding of the core tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the structure according to an embodiment of the present application; Figure 2 yes Figure 1 A schematic top view of Figure 3 is along Figure 2 A schematic cross-sectional view taken along the cutting line AA in FIG. Figure 4 yes Figure 3 A schematic partial enlarged view of part B; Figure 5 yes Figure 3 Schematic partial enlarged view of part C.

[0030] In the figure: 1, base; 11, extruder; 2, support assembly; 21, support ring; 22, support plate; 23, support cylinder; 3, cooling assembly; 31, fan; 32, cooling ring; 321, cooling cavity; 322, cooling hole; 323, air inlet hole; 4, sealing part; 41, rough detection ring; 411, water inlet cavity; 412, water outlet hole; 42, sealing ring; 421, sealing cavity; 43, connecting pipe; 5, replenishment part; 51, water tank; 52, water replenishment pipe; 53, water pump; 6, rough detection part; 61 , detection box; 62, liquid level sensor; 63, water inlet pipe; 7, drying dryer; 71, expansion ring; 711, expansion chamber; 72, connecting pipe; 73, drying cloth; 8, closing part; 81, closing ring; 811, closing chamber; 82, precision detection ring; 821, air inlet chamber; 822, air outlet; 9, precision detection part; 91, air box; 92, solenoid valve; 93, ventilation pipe; 94, air connecting pipe; 95, pressure plate; 96, tension spring; 97, compression spring; 98, pressure block; 99, pressure sensor; 90, sealing sleeve. DETAILED DESCRIPTION

[0031] The present application provides a precision core roll tube forming device.

[0032] See also Figure 1 The precision core tube forming equipment includes: an extruder 11 arranged on a base 1, and a support assembly 2 is provided on the top wall of the base 1. In the embodiment of the present application, three support assemblies 2 are provided and are arranged at intervals along the length direction of the base 1. The support assembly 2 is used to support the core tube to prevent the core tube from bending or even breaking due to excessive length.

[0033] See also Figure 1 The support assembly 2 includes: a support ring 21, a support plate 22 and a support cylinder 23. The support ring 21 is fixed on the top wall of the base 1. The support cylinder 23 is fixed on the inner wall of the support ring 21. In the present application, four support cylinders 23 are arranged in a single support ring 21 and are evenly distributed along the circumferential direction of the support ring 21. The output shaft of the support cylinder 23 is fixedly connected to the support plate 22. The support plate 22 is in an arc shape. When supporting, the winding core tube passes through the support ring 21. At the same time, the support cylinder 23 is started to push the support plate 22 to fit the winding core tube, thereby supporting the winding core tube, and can support winding core tubes of different diameters.

[0034] See also Figure 2 and Figure 3 Furthermore, a cooling assembly 3 is provided on one side of the extruder 11 close to the support ring 21. The cooling assembly 3 includes: a fan 31 and a cooling ring 32. The cooling ring 32 is fixed to the side wall of the extruder 11 close to the support ring 21, and an annular cooling cavity 321 is provided on the cooling ring 32. A plurality of cooling holes 322 are provided on the inner side wall of the cooling cavity 321 and penetrate through the inner side wall along the circumferential direction.

[0035] See also Figure 2 and Figure 3 An air inlet hole 323 is provided on the top wall of the cooling ring 32, and the air inlet hole 323 is connected to the cooling chamber 321; the fan 31 is installed in the air inlet hole 323. When the extruder 11 extrude the core tube, the fan 31 is started to pump air into the cooling chamber 321, and the air is blown to the core tube through the air outlet to cool the core tube, thereby facilitating rapid molding of the core tube.

[0036] Referring to 1 , further, a detection mechanism is provided on the base 1 , and the detection mechanism can detect whether there are any uneven areas on the surface of the winding core tube, so that the detection can be performed during the production process of the winding core tube to improve the production efficiency and the yield rate.

[0037] See 1, the detection mechanism includes: a coarse detection component and a fine detection component.

[0038] Referring to 4 , the rough detection assembly includes: a sealing portion 4 , a supplementary portion 5 and a rough detection portion 6 .

[0039] Referring to 4, the sealing part 4 includes: a coarse detection ring 41, a sealing ring 42 and a connecting tube 43. The coarse detection ring 41 is fixed on the top wall of the base 1, and the coarse detection ring 41 is located between two adjacent support rings 21 close to the extruder 11. The sealing ring 42 is fixed on the inner wall of the coarse detection ring 41. In the embodiment of the present application, two sealing rings 42 are provided, that is, a closed space can be formed between the two sealing rings 42, the coarse detection ring 41 and the winding core tube.

[0040] Refer to 4. An annular sealing cavity 421 is provided on the sealing ring 42; an annular water inlet cavity 411 is provided on the coarse detection ring 41, one end of the water inlet pipe 63 is connected with the sealing cavity 421, and the other end is connected with the water inlet cavity 411. When the winding core tube passes through the coarse detection ring 41, water is transported into the water inlet cavity 411, and the water in the water inlet cavity 411 enters the sealing cavity 421 through the water inlet pipe 63, so that the sealing ring 42 expands until the sealing ring 42 is tightly attached to the winding core tube, thereby facilitating detection; and the water in the sealing ring 42 can also cool the winding core tube.

[0041] Referring to 4, the replenishing part 5 includes: a water tank 51, a water supply pipe 52 and a water pump 53. The water tank 51 is fixed on the top wall of the rough detection ring 41, and the water pump 53 is arranged on the rough detection part 6. In the embodiment of the present application, a main water pipe can be arranged on the water tank 51 to replenish water into the water tank 51. One end of the water supply pipe 52 is connected to the water tank 51, and the other end is connected to the water pump 53. During the rough detection, the water pump 53 is started to pump the water in the water tank 51 to the rough detection part 6, so as to facilitate the detection.

[0042] Refer to 4, the rough detection part 6 includes: a detection box 61, a liquid level sensor 62 and a water inlet pipe 63. The detection box 61 is fixed on the top wall of the rough detection ring 41, and the water pump 53 is installed on the detection box 61 and communicated with the detection box 61; the liquid level sensor 62 is installed in the detection box 61. One end of the water inlet pipe 63 is communicated with the detection box 61, and the other end is communicated with the water inlet cavity 411; the inner wall of the water inlet cavity 411 is penetrated with a water outlet hole 412. During the rough detection, the water in the water tank 51 will be pumped into the detection box 61, and then flow into the water inlet cavity 411 through the water inlet pipe 63, and then enter the sealed cavity 421 and the two sealing rings 42, the rough detection ring 41 and the winding core tube to form a closed space through the connecting pipe 43 and the water outlet hole 412. If the liquid level sensor 62 detects that the water level in the detection box 61 drops sharply, it proves that the surface of the winding core tube has large and obvious uneven places; Refer to 4 . At the same time, the water in the closed space formed by the two sealing rings 42 , the coarse detection ring 41 and the winding core tube can cool the winding core tube, thereby facilitating the rapid molding of the winding core tube.

[0043] Referring to 4, further, the rough detection assembly also includes: a wiping portion 7, which includes: an expansion ring 71, a connecting tube 72 and a drying cloth 73. The expansion ring 71 is fixed on the inner wall of the rough detection ring 41 and is located on the side of the sealing ring 42 away from the extruder 11. In the embodiment of the present application, the expansion ring 71 can be made of rubber material. An annular expansion cavity 711 is provided on the expansion ring 71; one end of the connecting tube 72 is connected to the water inlet cavity 411, and the other end is connected to the expansion cavity 711.

[0044] Refer to 4, the drying cloth 73 is fixed on the expansion ring 71. In the embodiment of the present application, the drying cloth 73 has a certain elasticity. When the water in the detection box 61 flows into the water inlet chamber 411, the water in the water inlet chamber 411 flows into the expansion chamber 711 through the connecting tube 72, so that the expansion ring 71 increases until the drying cloth 73 is in close contact with the winding core tube, so that the drying cloth 73 can wipe the water on the surface of the winding core tube.

[0045] See also Figure 5 The precision detection component includes: a sealing part 8 and a precision detection part 9.

[0046] See also Figure 5 The closing portion 8 includes: a closing ring 81 and a precision detection ring 82. The precision detection ring 82 is fixed on the top wall of the base 1 and is located between two adjacent support rings 21 away from the extruder 11. The closing ring 81 is fixed on the inner wall of the precision detection ring 82. In the embodiment of the present application, the closing ring 81 can be made of rubber material, and two closing rings 81 are provided, so that a closed space can be formed between the two sealing rings 42, the precision detection ring 82 and the winding core tube for detection.

[0047] See also Figure 5 The precision detection part 9 includes: an air box 91, a solenoid valve 92, a ventilation pipe 93, an air connecting pipe 94, a pressure plate 95, a tension spring 96, a compression spring 97, a pressure block 98, a pressure sensor 99 and a sealing sleeve 90. The air box 91 is fixed on the top wall of the precision detection ring 82. In the embodiment of the present application, an air injection pipe can be arranged on the air box 91, and the air injection pipe is provided with a valve.

[0048] See also Figure 5 The pressure plate 95 is arranged in the air box 91, and the tension spring 96 is fixed between the inner bottom wall of the air box 91 and the bottom wall of the pressure plate 95, and the tension spring 96 is used to pull the pressure plate 95 downward. The pressure sensor 99 is fixed on the inner bottom wall of the air box 91; one end of the compression spring 97 is fixed to the bottom wall of the pressure plate 95, and the other end is fixed to the pressure block 98, and the pressure block 98 is in contact with the pressure sensor 99. In the embodiment of the present application, the elastic force of the tension spring 96 is greater than the elastic force of the compression spring 97.

[0049] See also Figure 5 , an annular air inlet cavity 821 is provided on the precision detection ring 82, and an air outlet hole 822 is provided through the inner wall of the air inlet cavity 821, one end of the vent pipe 93 is connected to the air box 91, and the other end is connected to the air inlet cavity 821; and the solenoid valve 92 is installed on the vent pipe 93. An annular closed cavity 811 is provided on the closed ring 81, one end of the connecting air pipe 94 is connected to the air inlet cavity 821, and the other end is connected to the closed cavity 811. When the winding core tube passes through the precision detection ring 82, the solenoid valve 92 is controlled to open the vent pipe 93. At this time, the pressure plate 95 moves downward to press the gas in the air box 91 into the air inlet cavity 821, and then enters the closed space formed by the two sealing rings 42, the precision detection ring 82 and the winding core tube through the air outlet hole 822 and the connecting air pipe 94, and then into the closed cavity 811; See also Figure 5 As the winding core tube continues to move, if the data detected by the pressure sensor 99 suddenly changes, it proves that the surface of the winding core tube has uneven areas; if the data detected by the pressure sensor 99 does not change, the opposite is true.

[0050] See also Figure 5 The sealing sleeve 90 is fixedly mounted on the peripheral wall of the pressing plate 95 , and the sealing sleeve 90 is used for sealing between the pressing plate 95 and the inner wall of the air box 91 .

[0051] The working principle of the precision coiled tube forming equipment of the present application when in use is specifically as follows: if the liquid level sensor 62 detects that the water level in the detection box 61 drops sharply, it proves that the surface of the coiled tube has large and obvious uneven areas.

[0052] The present application also provides a forming method of a precision core roll tube forming device.

[0053] The forming method of the precision core tube forming equipment comprises the following steps: S1: placing the material in the extruder 11 and extruding the winding core tube; S2: When the core tube passes through the coarse detection assembly, the coarse detection assembly will detect the surface of the core tube to detect whether there are any uneven areas; S3: When the winding core tube passes through the fine detection component, the fine detection component will further detect the surface of the winding core tube to detect whether there are any uneven areas.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. Precision core tube forming equipment, characterized in that: include: An extruder (11) is arranged on a base (1), the base (1) is provided with a support assembly (2) for supporting a winding core tube, the extruder (11) is provided with a cooling assembly (3), and the base (1) is provided with a detection mechanism.

2. The precision core roll tube forming equipment according to claim 1, characterized in that: The support assembly (2) comprises: a support ring (21), a support plate (22) and a support cylinder (23); the support ring (21) is mounted on a base (1); the support cylinder (23) is mounted in the support ring (21); and an output shaft of the support cylinder (23) is fixedly connected to the support plate (22).

3. The precision core tube forming equipment according to claim 1, characterized in that: The cooling component (3) comprises: a fan (31) and a cooling ring (32), wherein the cooling ring (32) is fixed on the extruder (11), a cooling cavity (321) is provided on the cooling ring (32), and a cooling hole (322) is provided through the inner wall of the cooling cavity (321), an air inlet hole (323) is provided through the inner wall of the cooling cavity (321), and the fan (31) is installed in the air inlet hole (323).

4. The precision core tube forming equipment according to claim 1, characterized in that: The detection mechanism comprises: a rough detection component, the rough detection component comprises: a sealing part (4), a supplementary part (5) and a rough detection part (6), the sealing part (4) comprises: a rough detection ring (41), a sealing ring (42) and a connecting pipe (43), the rough detection ring (41) is mounted on the base (1), the sealing ring (42) is fixed on the rough detection ring (41), a sealing cavity (421) is provided on the sealing ring (42), a water inlet cavity (411) is provided on the rough detection ring (41), one end of the connecting pipe (43) is connected to the sealing cavity (421), and the other end is connected to the water inlet cavity (411), the supplementary part (5) is arranged on the rough detection ring (41), and the rough detection part (6) is arranged between the rough detection ring (41) and the supplementary part (5).

5. The precision core roll tube forming equipment according to claim 4, characterized in that: The replenishing part (5) comprises: a water tank (51), a water replenishing pipe (52) and a water pump (53); the water tank (51) is fixed on the coarse detection ring (41); the water pump (53) is arranged on the coarse detection part (6); one end of the water replenishing pipe (52) is connected to the water tank (51) and the other end is connected to the water pump (53).

6. The precision core roll tube forming equipment according to claim 5, characterized in that: The rough detection part (6) comprises: a detection box (61), a liquid level sensor (62) and a water inlet pipe (63); the detection box (61) is fixed on the rough detection ring (41), and the water pump (53) is installed on the detection box (61); the liquid level sensor (62) is installed in the detection box (61); one end of the water inlet pipe (63) is connected to the detection box (61) and the other end is connected to the water inlet chamber (411); and a water outlet hole (412) is provided through the inner wall of the water inlet chamber (411).

7. The precision core roll tube forming equipment according to claim 6, characterized in that: The rough detection component further comprises: a wiping portion (7), the wiping portion (7) comprising: an expansion ring (71), a connecting pipe (72) and a wiping cloth (73), the expansion ring (71) being fixed on the rough detection ring (41), and an expansion cavity (711) being provided on the expansion ring (71), one end of the connecting pipe (72) being connected to the water inlet cavity (411), and the other end being connected to the expansion cavity (711), and the wiping portion (7) being fixed on the expansion ring (71).

8. The precision core roll tube forming equipment according to claim 1, characterized in that: The detection mechanism further comprises: a precision detection component, the precision detection component comprising: a sealing part (8) and a precision detection part (9), the sealing part (8) comprising: a sealing ring (81) and a precision detection ring (82), the precision detection ring (82) being fixed on the base (1), the sealing ring (81) being fixed on the precision detection ring (82), and the precision detection part (9) being arranged between the sealing ring (81) and the precision detection ring (82).

9. The precision core roll tube forming equipment according to claim 8, characterized in that: The precision detection unit (9) comprises: an air box (91), an electromagnetic valve (92), a vent pipe (93), an air connection pipe (94), a pressure plate (95), a tension spring (96), a compression spring (97), a pressure block (98), a pressure sensor (99) and a sealing sleeve (90), wherein the air box (91) is fixed on the precision detection ring (82), the pressure plate (95) is arranged in the air box (91), the tension spring (96) is fixed between the pressure plate (95) and the inner wall of the air box (91), one end of the compression spring (97) is fixed to the pressure plate (95) and the other end is fixed to the pressure block (98), and the pressure sensor (99) The precision detection ring (82) is fixed in the air box (91), an air inlet cavity (821) is provided on the precision detection ring (82), and an air outlet hole (822) is provided through the inner wall of the air inlet cavity (821), a closed cavity (811) is provided on the closed ring (81), one end of the ventilation pipe (93) is connected to the air box (91), and the other end is connected to the air inlet cavity (821), and the solenoid valve (92) is installed on the ventilation pipe (93), one end of the connecting pipe (94) is connected to the air inlet cavity (821), and the other end is connected to the closed cavity (811), and the sealing sleeve (90) is sleeved on the pressure plate (95).

10. A forming method for a precision core tube forming device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: placing the material in an extruder (11) and extruding a core tube; S2: When the core tube passes through the coarse detection assembly, the coarse detection assembly will detect the surface of the core tube to detect whether there are any uneven areas; S3: When the winding core tube passes through the fine detection component, the fine detection component will further detect the surface of the winding core tube to detect whether there are any uneven areas.

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