Efficient gray fabric dyeing and finishing equipment for knitted fabric production

Abstract

The invention provides efficient gray fabric dyeing and finishing equipment for knitted fabric production, and belongs to the technical field of gray fabric dyeing. The efficient gray fabric dyeing and finishing equipment comprises a dyeing pool, the dyeing pool is connected with a drainage pipe, a water pump and a flow dividing pipe are arranged on one side of the dyeing pool, a transmission chain is arranged in the dyeing pool, and a first rotating roller and a second rotating roller are arranged at the two ends of the dyeing pool respectively; the side wall of the dyeing pool is fixedly connected with a motor, and the filter assembly comprises a filter cartridge; the stirring assembly comprises a stirring cylinder; the limiting assembly comprises a limiting seat and a reciprocating screw rod; the device has the beneficial effects that a dye agent can be better stirred and mixed, impurity drifting is promoted, and impurity attachment can be reduced or avoided, so that the subsequent cleaning process is reduced, the production quality of gray fabric is improved, the blockage condition is avoided, the cleaning frequency is reduced, the production efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of grey cloth dyeing, and in particular to a grey cloth efficient dyeing and finishing device for knitted fabric production. Background Art

[0002] One-step dyeing and finishing is a popular processing method in the textile manufacturing industry. The one-step dyeing and finishing method includes pre-dyeing treatment, dyeing, washing and drying. Through this method, not only the hue, color and texture of the textiles can be better controlled, but also the dyeing wear resistance of the textiles can be improved, and the fading of the textile dyeing can be prevented.

[0003] Grey cloth refers to natural cotton cloth for printing and dyeing. Grey cloth in industry generally refers to cloth, or laminated grey cloth, glued grey cloth, etc. Immersion dyeing is also called exhaustion dyeing, which refers to immersing the dyed object in a dye bath containing dyes and required auxiliaries, and gradually dyeing the dyed object through dye bath circulation or dye bath movement. It is a dyeing method in which the textile is repeatedly immersed in the dye solution to make it move relative to the dye solution continuously. The coloring effect of the grey cloth can be improved by adding dyes to the dyes. However, when the existing grey cloth dyeing device is used, when the grey cloth is dyed inside the dyeing box, after a long time of dyeing, the dye auxiliaries in the dye pool are easily precipitated to the bottom of the box, making the dye mixing not uniform, which will affect the dyeing effect of the grey cloth, and the grey cloth will produce a lot of impurities during the chemical treatment process. These impurities will adhere to the surface of the grey cloth during dyeing, and need to be cleaned up later, increasing production costs. How to invent an efficient dyeing and finishing equipment for grey cloth used in knitted fabric production to solve these problems has become an urgent problem to be solved by technicians in this field. Summary of the invention

[0004] In order to make up for the above shortcomings, the present invention provides a high-efficiency dyeing and finishing equipment for grey cloth used in knitted fabric production, aiming to solve the problem that dye auxiliaries are not mixed evenly, affecting the dyeing effect, and impurities are easily attached to the surface of the grey cloth, increasing the subsequent cleaning cost.

[0005] The present invention is achieved in that:

[0006] The present invention provides a high-efficiency dyeing and finishing device for grey cloth used in knitted fabric production, comprising a dyeing tank, the dyeing tank is connected to a drain pipe, a water pump and a shunt pipe are arranged on one side of the dyeing tank, a transmission chain is arranged inside the dyeing tank, a rotating roller 1 and a rotating roller 2 are arranged at both ends of the dyeing tank, a motor is fixedly connected to the side wall of the dyeing tank, and further comprises:

[0007] A filter assembly, the filter assembly is located inside the dyeing tank, and the filter assembly includes a filter cartridge;

[0008] A stirring assembly, the stirring assembly is located inside the dyeing tank, and the stirring assembly includes a stirring cylinder;

[0009] A limit assembly is connected to the filter assembly, and the limit assembly includes a limit seat and a reciprocating screw rod.

[0010] Preferably, one side of the dyeing tank is fixedly connected to the drain pipe, the side wall of the dyeing tank is fixedly connected to the water pump, the drainage end of the water pump is fixedly connected to the diversion pipe, and a limited position installation groove is opened on the side of the dyeing tank away from the water pump.

[0011] Preferably, the stirring assembly also includes a rotating cylinder II, and two rotating cylinders II are provided. The two rotating cylinders II are respectively fixedly connected to the two ends of the stirring cylinder, and the side wall of the stirring cylinder is provided with a plurality of strip holes distributed in a circular array, and a stirring plate is provided between two adjacent strip holes, and one end of the stirring plate is fixedly connected to the side wall of the stirring cylinder.

[0012] Preferably, one of the rotating cylinders 2 is fixedly connected to the water inlet end of the water pump, and the other rotating cylinder 2 passes through the side wall of the dyeing tank and is fixedly connected to the motor, and a driving gear is fixedly connected to the outer wall of the rotating cylinder 2 on one side of the motor.

[0013] Preferably, the filter assembly also includes a movable plate, which is located inside the filter cartridge, a plurality of groups of filter holes distributed in a circular array are provided on the side wall of the filter cartridge, a slide groove is provided on the inner wall of the filter cartridge, a cleaning brush corresponding to the filter holes is fixedly connected to the outer wall of the movable plate, a limiting slider is fixedly connected to the outer wall of the movable plate, the limiting slider is slidably connected to the slide groove, a plurality of anti-slip pads distributed in a circular array are fixedly connected to the outer wall of the filter cartridge, and each of the anti-slip pads is located between two adjacent groups of filter holes.

[0014] Preferably, both ends of the filter cylinder are fixedly connected to a rotating cylinder 1, and both ends of the rotating cylinder 1 are rotatably connected to the side walls of the dyeing tank respectively, and one end of the rotating cylinder 1 passes through the side wall of the dyeing tank and is rotatably connected to one end of the diversion pipe.

[0015] Preferably, the outer wall of the other rotating cylinder is fixedly connected with a driven gear, the outer wall of the rotating cylinder is rotatably connected to the inside of the limiting mounting groove, the inner wall of the rotating cylinder is provided with a sealed bearing, and the driven gear and the driving gear are connected by a transmission chain.

[0016] Preferably, the limit seat is fixedly connected to the limit mounting groove, one side of the limit seat is fixedly connected to one end of the reciprocating screw, the other end of the reciprocating screw is fixedly connected to a support plate, the outer wall of the reciprocating screw is fixedly connected to the inner ring side wall of the sealed bearing, the outer wall of the reciprocating screw is threadedly connected to the movable plate, and the outer wall of the support plate is rotatably connected to an inner wall of a rotating cylinder away from the driven gear.

[0017] The beneficial effects of the present invention are:

[0018] In the process of dyeing the grey cloth, the motor can be started to drive the stirring drum to rotate, and then drive the stirring plate to roll the dye, which can make the dye inside the dyeing tank better stirred and mixed on the one hand, and make the impurities precipitated at the bottom of the dyeing tank better dispersed on the other hand, so that more impurities can be better sucked into the stirring drum through the strip holes through the work of the water pump, so as to improve the absorption of impurities inside the dyeing tank. When the stirring drum rotates, the filter drum rotates inside the dyeing tank, and the water pump works at the same time, so that the absorbed mixed liquid can be discharged into the inside of the filter drum through the shunt pipe, and the impurities are filtered through the filter holes, so that the liquid is discharged into the inside of the dyeing tank for use, which can reduce or avoid the attachment of impurities to the grey cloth, thereby reducing the subsequent cleaning process and improving the production quality of the grey cloth. In addition, in the process of the rotation of the filter drum, the movable plate can be driven to move back and forth inside the filter drum, so as to drive the cleaning brush on the side wall of the movable plate to clean the filter holes, so as to reduce blockage, reduce the number of cleaning times, improve production efficiency and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall front side structure of a grey cloth efficient dyeing and finishing device for knitted fabric production provided by an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of the overall rear side structure of a grey cloth efficient dyeing and finishing device for knitted fabric production provided by an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a limiting installation groove of a grey cloth efficient dyeing and finishing device for knitted fabric production provided by an embodiment of the present invention;

[0023] Figure 4This is a schematic diagram of the structure of a stirring component and a filtering component of a grey cloth efficient dyeing and finishing device for knitted fabric production provided by an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the internal structure of a filter roller of a grey cloth efficient dyeing and finishing device for knitted fabric production provided by an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of an agitating roller of a grey cloth efficient dyeing and finishing device for knitted fabric production provided by an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of a movable plate of a grey cloth efficient dyeing and finishing device for knitted fabric production provided by an embodiment of the present invention;

[0027] Figure 8 The present invention is a schematic diagram of the cross-sectional structure of a filter roller of a grey cloth efficient dyeing and finishing device for knitted fabric production provided by an embodiment of the present invention.

[0028] In the figure: 1. dyeing tank; 2. drain pipe; 3. water pump; 4. diverter pipe; 5. rotating roller one; 51. rotating roller two; 6. filter assembly; 61. rotating cylinder one; 62. filter cylinder; 63. filter hole; 64. anti-skid pad; 65. driven gear; 66. moving plate; 661. limit slider; 67. sealed bearing; 68. cleaning brush; 69. slide; 7. stirring assembly; 71. driving gear; 72. stirring plate; 73. strip hole; 74. stirring cylinder; 75. rotating cylinder two; 8. transmission chain; 9. motor; 10. limit assembly; 101. limit seat; 102. support plate; 103. reciprocating screw; 11. limit mounting groove. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Example, see Figure 1-Figure 8 , an efficient dyeing and finishing device for grey fabrics used in knitted fabric production, comprising a dyeing tank 1, the dyeing tank 1 is connected to a drain pipe 2, a water pump 3 and a shunt pipe 4 are arranged on one side of the dyeing tank 1, a transmission chain 8 is arranged inside the dyeing tank 1, a rotating roller 1 5 and a rotating roller 2 51 are arranged at both ends of the dyeing tank 1, a motor 9 is fixedly connected to the side wall of the dyeing tank 1, and further comprising:

[0031] A filter assembly 6, the filter assembly 6 is located inside the dyeing tank 1, and the filter assembly 6 includes a filter cartridge 62;

[0032] A stirring assembly 7, the stirring assembly 7 is located inside the dyeing tank 1, and the stirring assembly 7 includes a stirring cylinder 74;

[0033] The limiting assembly 10 is connected to the filter assembly 6 , and the limiting assembly 10 includes a limiting seat 101 and a reciprocating screw rod 103 .

[0034] Furthermore, one side of the dyeing tank 1 is fixedly connected to the drain pipe 2, the side wall of the dyeing tank 1 is fixedly connected to the water pump 3, the drainage end of the water pump 3 is fixedly connected to the diversion pipe 4, and a limited mounting groove 11 is opened on the side of the dyeing tank 1 away from the water pump 3.

[0035] It should be noted that when dyeing the grey cloth, dye is added inside the dyeing tank 1. First, one end of the grey cloth to be dyed passes through the upper end of the rotating roller 1 5 and the lower ends of the two filter cylinders 62. After being immersed in the dyeing tank 1, it is rotated and sent out by the rotating roller 2 51. When the pigment inside the dyeing tank 1 is replaced, the valve of the drain pipe 2 is opened to discharge it, and then new dye can be directly added.

[0036] Reference Figure 2 -and Figure 6 , further; the stirring assembly 7 also includes a rotating cylinder 2 75, and two rotating cylinders 75 are provided. The two rotating cylinders 75 are respectively fixedly connected to the two ends of the stirring cylinder 74, and the side wall of the stirring cylinder 74 is provided with a plurality of strip holes 73 distributed in a circumferential array. A stirring plate 72 is provided between two adjacent strip holes 73, and one end of the stirring plate 72 is fixedly connected to the side wall of the stirring cylinder 74; one of the rotating cylinders 75 is fixedly connected to the water inlet end of the water pump 3, and the other rotating cylinder 75 passes through the side wall of the dyeing tank 1 and is fixedly connected to the motor 9, and the outer wall of the rotating cylinder 2 75 on one side of the motor 9 is fixedly connected with a driving gear 71.

[0037] It should be noted that: during the dyeing process of the grey cloth, the motor 9 can be started, and the stirring cylinder 74 can be driven to rotate inside the dyeing tank 1 by rotating the second cylinder 75, thereby driving the stirring plate 72 to roll the dye. On the one hand, the dye inside the dyeing tank 1 can be better stirred and mixed, and on the other hand, the impurities precipitated at the bottom of the dyeing tank 1 can be better dispersed, so that more impurities can be better sucked into the inside of the stirring cylinder 74 through the bar holes 73 through the work of the water pump 3, thereby improving the absorption of impurities inside the dyeing tank 1.

[0038] Reference Figure 4 , Figure 5 , Figure 7 and Figure 8, further; the filter assembly 6 also includes a movable plate 66, which is located inside the filter cylinder 62, and a plurality of groups of filter holes 63 distributed in a circumferential array are provided on the side wall of the filter cylinder 62, and a slide groove 69 is provided on the inner wall of the filter cylinder 62. A cleaning brush 68 corresponding to the filter hole 63 is fixedly connected to the outer wall of the movable plate 66, and a limited slider 661 is fixedly connected to the outer wall of the movable plate 66, and the limited slider 661 is slidably connected to the slide groove 69. The outer wall of the filter cylinder 62 is fixedly connected with a plurality of anti-skid pads 64 distributed in a circumferential array, and each anti-skid pad 64 is located between two adjacent groups of filter holes 63; both ends of the filter cylinder 62 are fixedly connected with a rotating cylinder 61, and the two ends of the rotating cylinder 61 are respectively rotatably connected to the side walls of the dyeing tank 1, and one end of one rotating cylinder 61 penetrates the dyeing tank 1. The side wall of the color pool 1 is rotatably connected to one end of the diverter pipe 4; the outer wall of the other rotating cylinder 61 is fixedly connected with a driven gear 65, the outer wall of the rotating cylinder 61 is rotatably connected to the inside of the limit mounting groove 11, the inner wall of the rotating cylinder 61 is provided with a sealed bearing 67, and the driven gear 65 and the driving gear 71 are connected by a transmission chain 8; the limit seat 101 is fixedly connected to the limit mounting groove 11, one side of the limit seat 101 is fixedly connected to one end of the reciprocating screw rod 103, the other end of the reciprocating screw rod 103 is fixedly connected with a support plate 102, the outer wall of the reciprocating screw rod 103 is fixedly connected to the inner ring side wall of the sealed bearing 67, the outer wall of the reciprocating screw rod 103 is threadedly connected to the movable plate 66, and the outer wall of the support plate 102 is rotatably connected to one of the inner walls of the rotating cylinder 61 away from the driven gear 65.

[0039] It should be noted that: when the motor 9 is started, the water pump 3 is started, and the driving gear 71 is driven to rotate synchronously during the rotation of the stirring cylinder 74, and the transmission chain 8 is respectively meshed with the driving gear 71 and the driven gear 65, so the driving gear 71 can drive the driven gear 65 to rotate, and in this process, the filter cylinder 62 can rotate inside the dyeing tank 1, and the anti-skid pad 64 can reduce the slippage of the grey cloth during the movement, so as to ensure the uniformity of the grey cloth dyeing process, and in the process of the rotation of the filter cylinder 62, the water pump 3 works, and the absorbed mixed liquid can be discharged into the interior of the filter cylinder 62 through the shunt pipe 4, and the impurities are filtered through the filter hole 63, so that the liquid is discharged into the interior of the dyeing tank 1 for use, which can reduce or avoid the attachment of impurities to the grey cloth, thereby reducing the subsequent cleaning process and improving the production quality of the grey cloth;

[0040] In addition, during the rotation of the filter cartridge 62, due to the limited sliding between the limit slider 661 and the slide groove 69, and the threaded connection between the movable plate 66 and the reciprocating screw 103, the movable plate 66 can be driven to reciprocate inside the filter cartridge 62, thereby driving the cleaning brush 68 on the side wall of the movable plate 66 to clean the filter hole 63, thereby reducing blockage, reducing the number of cleaning times, and improving production efficiency. The function of the support plate 102 is to support one end of the reciprocating screw 103, thereby improving the stability of the reciprocating screw 103 during operation and ensuring the normal movement of the movable plate 66.

[0041] The working principle of the grey cloth efficient dyeing and finishing equipment for knitted fabric production is as follows: when dyeing the grey cloth, dyeing agent is added inside the dyeing tank 1, first one end of the grey cloth to be dyed passes through the upper end of the rotating roller 1 5 and the lower ends of the two filter cylinders 62, and then after being immersed in the dyeing tank 1, it is rotated and sent out by the rotating roller 2 51, and when the pigment inside the dyeing tank 1 is replaced, the valve of the drain pipe 2 is opened to discharge it, and then new dyeing agent can be directly added;

[0042] In the process of dyeing the grey cloth, the motor 9 can be started, and the stirring cylinder 74 can be driven to rotate inside the dyeing tank 1 by the rotating cylinder 75, thereby driving the stirring plate 72 to roll the dye, so that the dye inside the dyeing tank 1 can be better stirred and mixed, and the impurities precipitated at the bottom of the dyeing tank 1 can be better dispersed, so that more impurities can be better sucked into the inside of the stirring cylinder 74 through the bar holes 73 through the work of the water pump 3, thereby improving the absorption of impurities inside the dyeing tank 1;

[0043] When the motor 9 is started, the water pump 3 is started, and the driving gear 71 is driven to rotate synchronously during the rotation of the stirring cylinder 74, and the transmission chain 8 is respectively meshed with the driving gear 71 and the driven gear 65, so the driving gear 71 can drive the driven gear 65 to rotate. In this process, the filter cylinder 62 can rotate inside the dyeing tank 1, and the anti-skid pad 64 can reduce the slippage of the grey cloth during the movement, so as to ensure the uniformity of the grey cloth dyeing process, and in the process of the rotation of the filter cylinder 62, the water pump 3 works, and the absorbed mixed liquid can be discharged into the interior of the filter cylinder 62 through the shunt pipe 4, and the impurities are filtered through the filter hole 63, so that the liquid is discharged into the interior of the dyeing tank 1 for use, which can reduce or avoid the attachment of impurities to the grey cloth, thereby reducing the subsequent cleaning process and improving the production quality of the grey cloth;

[0044] In addition, during the rotation of the filter cartridge 62, due to the limited sliding between the limit slider 661 and the slide groove 69, and the threaded connection between the movable plate 66 and the reciprocating screw 103, the movable plate 66 can be driven to reciprocate inside the filter cartridge 62, thereby driving the cleaning brush 68 on the side wall of the movable plate 66 to clean the filter hole 63, thereby reducing blockage, reducing the number of cleaning times, and improving production efficiency. The function of the support plate 102 is to support one end of the reciprocating screw 103, thereby improving the stability of the reciprocating screw 103 during operation and ensuring the normal movement of the movable plate 66.

[0045] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An efficient dyeing and finishing device for grey fabrics used in the production of knitted fabrics, comprising a dyeing tank (1), the dyeing tank (1) being connected to a drain pipe (2), a water pump (3) and a shunt pipe (4) being provided on one side of the dyeing tank (1), a transmission chain (8) being provided inside the dyeing tank (1), a rotating roller 1 (5) and a rotating roller 2 (51) being provided at both ends of the dyeing tank (1), a motor (9) being fixedly connected to the side wall of the dyeing tank (1), characterized in that: Also includes: A filter assembly (6), the filter assembly (6) being located inside the dyeing tank (1), the filter assembly (6) comprising a filter cartridge (62); A stirring assembly (7), the stirring assembly (7) is located inside the dyeing tank (1), and the stirring assembly (7) comprises a stirring cylinder (74); A position limiting assembly (10), wherein the position limiting assembly (10) is connected to the filter assembly (6), and the position limiting assembly (10) comprises a position limiting seat (101) and a reciprocating screw rod (103).

2. The efficient dyeing and finishing equipment for grey fabrics used in knitted fabric production according to claim 1, characterized in that: One side of the dyeing tank (1) is fixedly connected to the drainage pipe (2), the side wall of the dyeing tank (1) is fixedly connected to the water pump (3), the drainage end of the water pump (3) is fixedly connected to the diversion pipe (4), and a limited position installation groove (11) is provided on a side of the dyeing tank (1) away from the water pump (3).

3. The efficient dyeing and finishing equipment for grey fabrics used in knitted fabric production according to claim 1, characterized in that: The stirring assembly (7) further comprises a second rotating cylinder (75), wherein two of the second rotating cylinders (75) are provided, and the two second rotating cylinders (75) are respectively fixedly connected to the two ends of the stirring cylinder (74), and the side wall of the stirring cylinder (74) is provided with a plurality of strip holes (73) distributed in a circumferential array, and a stirring plate (72) is provided between two adjacent strip holes (73), and one end of the stirring plate (72) is fixedly connected to the side wall of the stirring cylinder (74).

4. The efficient dyeing and finishing equipment for grey fabrics used in knitted fabric production according to claim 3 is characterized in that: One of the rotating drums (75) is fixedly connected to the water inlet end of the water pump (3), and the other rotating drum (75) passes through the side wall of the dyeing tank (1) and is fixedly connected to the motor (9). The outer wall of the rotating drum (75) on one side of the motor (9) is fixedly connected to a driving gear (71).

5. The efficient dyeing and finishing equipment for grey fabrics used in knitted fabric production according to claim 2, characterized in that: The filter assembly (6) further comprises a movable plate (66), wherein the movable plate (66) is located inside the filter cartridge (62), a plurality of filter holes (63) distributed in a circumferential array are provided on the side wall of the filter cartridge (62), a slide groove (69) is provided on the inner wall of the filter cartridge (62), a cleaning brush (68) corresponding to the filter holes (63) is fixedly connected to the outer wall of the movable plate (66), a limiting slider (661) is fixedly connected to the outer wall of the movable plate (66), the limiting slider (661) is slidably connected to the slide groove (69), and a plurality of anti-skid pads (64) distributed in a circumferential array are fixedly connected to the outer wall of the filter cartridge (62), and each of the anti-skid pads (64) is located between two adjacent groups of filter holes (63).

6. The efficient dyeing and finishing equipment for grey fabrics used in knitted fabric production according to claim 5, characterized in that: The two ends of the filter cylinder (62) are fixedly connected to a rotating cylinder (61), and the two ends of the rotating cylinder (61) are respectively rotatably connected to the side walls of the dyeing tank (1), and one end of the rotating cylinder (61) penetrates the side wall of the dyeing tank (1) and is rotatably connected to one end of the diversion pipe (4).

7. The efficient dyeing and finishing equipment for grey fabrics used in knitted fabric production according to claim 6, characterized in that: The outer wall of the other rotating cylinder (61) is fixedly connected to a driven gear (65), the outer wall of the rotating cylinder (61) is rotatably connected to the inside of the limit installation groove (11), the inner wall of the rotating cylinder (61) is provided with a sealed bearing (67), and the driven gear (65) and the driving gear (71) are connected in transmission via a transmission chain (8).

8. The efficient dyeing and finishing equipment for grey fabrics used in knitted fabric production according to claim 7, characterized in that: The limit seat (101) is fixedly connected to the limit installation groove (11), one side of the limit seat (101) is fixedly connected to one end of the reciprocating screw (103), the other end of the reciprocating screw (103) is fixedly connected to the support plate (102), the outer wall of the reciprocating screw (103) is fixedly connected to the inner ring side wall of the sealed bearing (67), the outer wall of the reciprocating screw (103) is threadedly connected to the movable plate (66), and the outer wall of the support plate (102) is rotatably connected to the inner wall of one of the rotating cylinders (61) away from the driven gear (65).

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