Flannelette fixed-length rolling device

Abstract

The utility model relates to the technical field of flannelette rolling, in particular to a flannelette fixed-length rolling device. According to the technical scheme, the device comprises a workbench, a tension adjusting mechanism, a cutting mechanism and a winding mechanism are sequentially arranged on the top face of the workbench from right to left, the tension adjusting mechanism comprises a set of auxiliary mechanism and a carding mechanism, the auxiliary mechanism comprises two fixing plates, and the same rotating roller is rotationally arranged between the two fixing plates. By arranging the tension adjusting mechanism, proper tension adjustment can be conveniently carried out according to different characteristics of flannelette, the smoothness of the flannelette can be kept when the flannelette is wound, fluff on the top face and the bottom face of the flannelette can be conveniently combed through the carding mechanism, smoothness and smoothness of the fluff are guaranteed, and the working efficiency is improved. By arranging the clamping mechanism on the cutting mechanism, it can be guaranteed that flannelette is cut more conveniently, skewing of cutting wiring is prevented, flannelette with different thicknesses can be wound conveniently by arranging the winding mechanism, and flannelette winding convenience is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of flannelette rolling, in particular to a device for rolling flannelette with a fixed length. Background Art

[0002] Flannelette (flocked fabric) is a kind of textile, usually referring to a fabric with slender fluff on its surface. These fluff can be natural, such as wool, rabbit hair, etc., or artificial, such as artificial fleece, artificial leather, etc. The characteristics of flannelette are that its surface is soft, smooth, feels warm and has certain heat preservation performance. Therefore, it is widely used in the fields of clothing, household items, etc. When selling fabrics, manufacturers need to cut the long flannelette into a certain length and roll it up for easy transportation and sale. So, a device for rolling flannelette with a fixed length is needed. Some flannelettes add some elastic fibers to increase softness and comfort, so when winding, the flannelette may have the phenomena of uneven winding and inconsistent tightness, and the length will also change. Moreover, if the fluff of the flannelette is not combed during winding, it will become messy and knotted when wound, thus affecting subsequent sales. Therefore, a device for rolling flannelette with a fixed length needs to be proposed. Content of the Utility Model

[0003] The purpose of the utility model is to propose a device for rolling flannelette with a fixed length aiming at the problems existing in the background art.

[0004] Technical solution of the utility model: A flannelette fixed-length winding device, including a workbench, on the top surface of the workbench, a tension adjusting mechanism, a cutting mechanism, and a winding mechanism are arranged in sequence from right to left. The tension adjusting mechanism includes a group of auxiliary mechanisms and a combing mechanism. The auxiliary mechanism includes two fixing plates, and the same roller is rotatably arranged between the two fixing plates. The combing mechanism includes a bottom comb mechanism and a top comb mechanism. The bottom comb mechanism includes a mounting plate 1, on the front side of the mounting plate 1, an adjusting groove 1 is opened, inside the adjusting groove 1, an adjusting block 1 is slidably arranged, on the top surface of the adjusting block 1, a one-way screw 1 is rotatably arranged, the top end of the one-way screw 1 penetrates through and extends to the top surface of the mounting plate 1 and is provided with a knob 1, the one-way screw 1 is in threaded connection with the mounting plate 1, on the rear side of the adjusting block 1, a bottom comb plate is arranged. The top comb mechanism includes a mounting plate 2, on the front side of the mounting plate 2, an adjusting groove 2 is opened, inside the adjusting groove 2, an adjusting block 2 is slidably arranged, on the top surface of the adjusting block 2, a one-way screw 2 is rotatably arranged, the top end of the one-way screw 2 penetrates through and extends to the top surface of the mounting plate 2 and is provided with a knob 2, the one-way screw 2 is in threaded connection with the mounting plate 2, on the front side of the adjusting block 2, a top comb roller is arranged. The cutting mechanism includes a cushion table, on the top surface of the cushion table, a mounting groove is opened, inside the mounting groove, an electric guide rail is arranged, at one end of the electric guide rail, a sliding table is slidably arranged, on the top surface of the sliding table, a double-edge blade is arranged, on the top surface of the cushion table, a group of clamping mechanisms are arranged. The clamping mechanism includes a support plate 1, on the front side of the support plate 1, an adjusting groove 3 is opened, on the top surface of the support plate 1, a motor 1 is arranged, the output end of the motor 1 penetrates through and extends to the inside of the adjusting groove 3 and is provided with a bidirectional screw 1, on the outer circles of both ends of the bidirectional screw 1, pressing plates are in threaded connection. The winding mechanism includes a vertical plate, on the front side of the vertical plate, a motor 2 is arranged, the output end of the motor 2 penetrates through and extends to the rear side of the vertical plate and is provided with a rotating plate, on the rear side of the rotating plate, an adjusting groove 4 is opened, on the top end of the rotating plate, a knob 3 is arranged, on the bottom surface of the knob 3, a bidirectional screw 2 is arranged, the bottom end of the bidirectional screw 2 penetrates through and extends to the inside of the adjusting groove 4, on the outer circles of both ends of the bidirectional screw 2, threaded blocks are in threaded connection, and on the rear side of each threaded block, a clamping plate is arranged.

[0005] Preferably, the two auxiliary mechanisms are respectively located on the left and right sides of the combing mechanism.

[0006] Preferably, on both the left and right sides of the adjusting block 1, trapezoidal blocks 1 are arranged, on both inner walls of the adjusting groove 1 of the mounting plate 1, trapezoidal grooves 1 are opened, and the trapezoidal blocks 1 are in sliding connection with the trapezoidal grooves 1.

[0007] Preferably, on the top surface of the mounting plate 1, a threaded hole 1 is opened, and the outer circle of the one-way screw 1 is in threaded connection with the threaded hole 1.

[0008] Preferably, the top surface of the bottom comb plate is in an arc concave shape, and a plurality of comb teeth are distributed on the top surface of the bottom comb plate.

[0009] Preferably, trapezoidal blocks two are arranged on both the left and right sides of the adjusting block two, trapezoidal grooves two are formed on both inner walls of the adjusting groove two of the mounting plate two, and the trapezoidal blocks two are slidably connected with the trapezoidal grooves two.

[0010] Preferably, a threaded hole two is formed on the top surface of the mounting plate two, and the outer ring of the one-way screw two is in threaded connection with the threaded hole two.

[0011] Preferably, a plurality of comb teeth are distributed on the outer ring of the top comb roller.

[0012] Preferably, a group of support plates two are arranged on the top surface of the cushion table, a sliding groove is formed on the front side of the support plate two, a guide rod is arranged in the sliding groove, and the rear ends of the pressing plates are respectively slidably connected with the outer rings of the corresponding guide rods.

[0013] Preferably, an L-shaped ring strip is arranged on the front side of the rotating plate, an L-shaped ring groove is formed on the rear side of the vertical plate, and the L-shaped ring strip is rotatably connected with the L-shaped ring groove.

[0014] Compared with the prior art, the utility model has the following beneficial technical effects:

[0015] By arranging a tension adjusting mechanism, the utility model is convenient for carrying out appropriate tension adjustment according to different characteristics of the flannelette, ensuring the flatness of the flannelette during winding. And through the combing mechanism, it is convenient to comb the fluff on the top and bottom surfaces of the flannelette, ensuring the smoothness and flatness of the fluff. By arranging the clamping mechanism on the cutting mechanism, it can ensure that the flannelette is more convenient to cut and prevent the cutting wire from skewing. By arranging the winding mechanism, it is convenient to wind flannelettes with different thicknesses, ensuring the convenience of winding the flannelette. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is a schematic diagram of the structure of the bottom comb mechanism in the utility model;

[0018] Figure 3 is a schematic diagram of the structure of the top comb mechanism in the utility model;

[0019] Figure 4 is a schematic diagram of the structure of the cutting mechanism in the utility model;

[0020] Figure 5 is a schematic diagram of the structure of the winding mechanism in the utility model;

[0021] Figure 6This is a cross-sectional view of the winding mechanism in the present utility model.

[0022] Reference numerals: 1, workbench; 2, tension adjusting mechanism; 21, auxiliary mechanism; 211, fixing plate; 212, roller; 22, combing mechanism; 221, bottom comb mechanism; 2211, mounting plate 1; 2212, adjusting block 1; 2213, one-way screw 1; 2214, knob 1; 2215, bottom comb plate; 222, top comb mechanism; 2221, mounting plate 2; 2222, adjusting block 2; 2223, one-way screw 2; 2224, knob 2; 2225, top comb roller; 3, cutting mechanism; 31, cushion table; 32, electric guide rail; 33, sliding table; 34, double-edge blade; 35, clamping mechanism; 351, support plate 1; 352, motor 1; 353, bidirectional screw 1; 354, pressing plate; 4, winding mechanism; 41, vertical plate; 42, motor 2; 43, rotating plate; 44, knob 3; 45, bidirectional screw 2; 46, threaded block; 47, clamping plate; 5, trapezoidal block 1; 6, trapezoidal block 2; 7, support plate 2; 8, guide rod; 9, L-shaped ring strip. Detailed implementation manners

[0023] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment

[0025] As Figures 1 to 6 shown, a fixed-length winding device for flannelette proposed by the present utility model includes a workbench 1. A tension adjusting mechanism 2, a cutting mechanism 3, and a winding mechanism 4 are sequentially arranged on the top surface of the workbench 1 from right to left. The tension adjusting mechanism 2 includes a group of auxiliary mechanisms 21 and a combing mechanism 22. The two auxiliary mechanisms 21 are respectively located on the left and right sides of the combing mechanism 22. The cooperation between the auxiliary mechanism 21 and the combing mechanism 22 facilitates the adjustment of the winding tension of the flannelette. The auxiliary mechanism 21 includes two fixing plates 211. The bottom surface of the bottom comb mechanism 221 is fixedly connected to the top surface of the workbench 1. The same roller 212 is rotatably arranged between the two fixing plates 211. The flannelette is located on the top surfaces of the two rollers 212 during winding. The combing mechanism 22 includes a bottom comb mechanism 221 and a top comb mechanism 222. The bottom comb mechanism 221 includes a mounting plate 1 2211. The bottom surface of the mounting plate 1 2211 is fixedly connected to the top surface of the workbench 1. An adjusting groove 1 is opened on the front side of the mounting plate 1 2211. An adjusting block 1 2212 is slidably arranged inside the adjusting groove 1;

[0026] On both the left and right sides of the first adjusting block 2212, there are first trapezoidal blocks 5. Both the left and right sides of the first adjusting block 2212 are fixedly connected to the first trapezoidal blocks 5. On both inner walls of the first adjusting groove of the first mounting plate 2211, there are first trapezoidal grooves. The first trapezoidal blocks 5 are slidably connected to the first trapezoidal grooves. The first trapezoidal grooves guide and limit the first trapezoidal blocks 5, thereby guiding and limiting the running track of the first adjusting block 2212. On the top surface of the first adjusting block 2212, there is a first one-way screw 2213 rotatably arranged. The top end of the first one-way screw 2213 penetrates and extends to the top surface of the first mounting plate 2211 and is provided with a first knob 2214. The top end of the first one-way screw 2213 is fixedly connected to the bottom surface of the first knob 2214. The first one-way screw 2213 is threadedly connected to the first mounting plate 2211. There is a first threaded hole on the top surface of the first mounting plate 2211. The outer ring of the first one-way screw 2213 is threadedly connected to the first threaded hole. By rotating the first knob 2214, the first one-way screw 2213 can be driven to rotate, thereby driving the first adjusting block 2212 to move up and down;

[0027] At the rear side of the first adjusting block 2212, there is a bottom comb plate 2215. The rear side of the first adjusting block 2212 is fixedly connected to the front side of the bottom comb plate 2215. The top surface of the bottom comb plate 2215 is in an arc-shaped concave shape. There are multiple comb teeth distributed on the top surface of the bottom comb plate 2215, which is convenient for combing the bottom surface of the flannelette and conforming to the bottom state when the flannelette is wound up, improving the flatness of combing. The top comb mechanism 222 includes a second mounting plate 2221. The bottom surface of the second mounting plate 2221 is fixedly connected to the top surface of the workbench 1. There is a second adjusting groove on the front side of the second mounting plate 2221. Inside the second adjusting groove, there is a second adjusting block 2222 slidably arranged. On both the left and right sides of the second adjusting block 2222, there are second trapezoidal blocks 6. The second adjusting block 2222 is fixedly connected to the second trapezoidal blocks 6. On both inner walls of the second adjusting groove of the second mounting plate 2221, there are second trapezoidal grooves. The second trapezoidal blocks 6 are slidably connected to the second trapezoidal grooves. The second trapezoidal grooves guide and limit the second trapezoidal blocks 6, thereby guiding and limiting the running track of the second adjusting block 2222. On the top surface of the second adjusting block 2222, there is a second one-way screw 2223 rotatably arranged;

[0028] The top end of the unidirectional screw two 2223 penetrates and extends to the top surface of the mounting plate two 2221 and is provided with a knob two 2224. The top end of the unidirectional screw two 2223 is fixedly connected to the bottom surface of the knob two 2224. The unidirectional screw two 2223 is threadedly connected to the mounting plate two 2221. A threaded hole two is formed in the top surface of the mounting plate two 2221. The outer ring of the unidirectional screw two 2223 is threadedly connected to the threaded hole two. By rotating the knob two 2224, the unidirectional screw two 2223 can be driven to slide in the threaded hole two, so as to drive the adjusting block two 2222 to move up and down. A top comb roller 2225 is arranged on the front side of the adjusting block two 2222. The adjusting block two 2222 is fixedly connected to the top comb roller 2225. A plurality of comb teeth are distributed on the outer ring of the top comb roller 2225. The comb teeth distributed on the top comb roller 2225 can comb the top fluff of the flannelette to ensure the flatness of the flannelette winding. The cutting mechanism 3 includes a cushion table 31. The bottom surface of the cushion table 31 is fixedly connected to the top surface of the workbench 1. An installation groove is formed in the top surface of the cushion table 31. An electric guide rail 32 is arranged in the installation groove. The electric guide rail 32 is fixedly installed in the installation groove;

[0029] A sliding table 33 is slidably arranged at one end of the electric guide rail 32. A double-edge blade 34 is arranged on the top surface of the sliding table 33. The top surface of the sliding table 33 is fixedly connected to the bottom end of the double-edge blade 34. A set of clamping mechanisms 35 is arranged on the top surface of the cushion table 31. The clamping mechanism 35 includes a support plate one 351. The bottom surface of the support plate one 351 is fixedly connected to the top surface of the cushion table 31. An adjusting groove three is formed in the front side of the support plate one 351. A motor one 352 is arranged on the top surface of the support plate one 351. The top surface of the support plate one 351 is fixedly connected to the bottom surface of the motor one 352. The output end of the motor one 352 penetrates and extends to the inside of the adjusting groove three and is provided with a bidirectional screw one 353. The output end of the motor one 352 is rotatably connected to the support plate one 351. The output end of the motor one 352 is fixedly connected to the top end of the bidirectional screw one 353. Pressing plates 354 are threadedly connected to the outer rings at both ends of the bidirectional screw one 353. A set of support plates two 7 is arranged on the top surface of the cushion table 31. The top surface of the cushion table 31 is fixedly connected to the bottom surface of the support plates two 7;

[0030] A chute is formed on the front side of the second support plate 7, and a guide rod 8 is arranged in the chute. The guide rod 8 is fixedly installed in the chute. The rear ends of the pressing plates 354 are respectively slidably connected to the outer circumference of a corresponding guide rod 8. The guide rod 8 can be used to guide and limit the rear ends of the pressing plates 354. The winding mechanism 4 includes a vertical plate 41. The bottom surface of the vertical plate 41 is fixedly connected to the top surface of the workbench 1. A second motor 42 is arranged on the front side of the vertical plate 41. The front side of the vertical plate 41 is fixedly connected to the second motor 42. The output end of the second motor 42 penetrates and extends to the rear side of the vertical plate 41 and is provided with a rotating plate 43. The output end of the second motor 42 is rotatably connected to the vertical plate 41. The output end of the second motor 42 is fixedly connected to the front side of the rotating plate 43. An L-shaped ring strip 9 is arranged on the front side of the rotating plate 43. The front side of the rotating plate 43 is fixedly connected to the L-shaped ring strip 9. An L-shaped ring groove is formed on the rear side of the vertical plate 41. The L-shaped ring strip 9 is rotatably connected to the L-shaped ring groove. The L-shaped ring groove can be used to guide and limit the L-shaped ring strip 9, so as to guide and limit the rotating plate 43;

[0031] An adjustment groove four is formed on the rear side of the rotating plate 43. A third knob 44 is arranged at the top end of the rotating plate 43. The rotating plate 43 is rotatably connected to the third knob 44. A second bidirectional screw rod 45 is arranged on the bottom surface of the third knob 44. The bottom surface of the third knob 44 is fixedly connected to the top end of the second bidirectional screw rod 45. The bottom end of the second bidirectional screw rod 45 penetrates and extends into the interior of the adjustment groove four. Threaded blocks 46 are threadedly connected to the outer circumferences of both ends of the second bidirectional screw rod 45. A clamping plate 47 is arranged on the rear side of each threaded block 46. The rear side of the threaded block 46 is fixedly connected to the front end of the clamping plate 47.

[0032] In this embodiment, when using this device, first pass the flannelette through the top surface of a roller 212 on the right side between the bottom comb plate 2215 and the top comb roller 2225, then through the top surface of a roller 212 on the left side, then through between two groups of pressing plates 354, and finally place the end face of the flannelette between two clamping plates 47. By rotating the third knob 44, drive two threaded blocks 46 to move closer to each other along the second bidirectional screw 45, so as to clamp the flannelette between the two clamping plates 47. Then rotate the second knob 2224. By the rotation of the second knob 2224, drive the second one-way screw 2223 to move up and down along the second threaded hole, so as to adjust the tension of the flannelette to an appropriate state. Then rotate the first knob 2214 according to the position of the bottom surface of the flannelette. By the rotation of the first knob 2214, drive the first adjusting block 2212 to move up and down, so as to make the top surface of the bottom comb plate 2215 fit the bottom surface of the flannelette. Then the second motor 42 can be operated. Drive the rotating plate 43 to rotate through the output end of the second motor 42, so as to drive the end face of the flannelette to rotate, and thus the flannelette can be wound. During the winding, the top surface of the flannelette is in contact with the bottom end of the top comb roller 2225. The top surface of the flannelette is combed by the comb teeth on the top comb roller 2225, and the bottom surface of the flannelette is combed by the top surface of the bottom comb plate 2215, so as to ensure the flatness of the flannelette winding. When the winding reaches the required length, pause the operation of the second motor 42. Then operate the first motor 352. Drive the first bidirectional screw 353 to rotate through the output end of the first motor 352. The rotation of the first bidirectional screw 353 can drive two pressing plates 354 to move closer to each other, so as to clamp the flannelette between two groups of pressing plates 354, ensuring the flatness and tension of the flannelette. Then operate the electric guide rail 32 to drive the sliding table 33 to move, so as to drive the double-edge blade 34 to move, and thus cut the flannelette.

[0033] The above specific embodiment is only a preferred embodiment of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims

1. A fixed-length winding device for flannelette, comprising a workbench (1), characterized in that: The top surface of the workbench (1) is sequentially provided with a tension adjusting mechanism (2), a cutting mechanism (3), and a winding mechanism (4) from right to left. The tension adjusting mechanism (2) includes a set of auxiliary mechanisms (21) and a combing mechanism (22). The auxiliary mechanism (21) includes two fixing plates (211), and the same roller (212) is rotatably arranged between the two fixing plates (211). The combing mechanism (22) includes a bottom comb mechanism (221) and a top comb mechanism (222). The bottom comb mechanism (221) includes a mounting plate one (2211). An adjusting groove one is opened on the front side of the mounting plate one (2211). An adjusting block one (2212) is slidably arranged inside the adjusting groove one. A one-way screw one (2213) is rotatably arranged on the top surface of the adjusting block one (2212). The top end of the one-way screw one (2213) penetrates and extends to the top surface of the mounting plate one (2211) and is provided with a knob one (2214). The one-way screw one (2213) is in threaded connection with the mounting plate one (2211). A bottom comb plate (2215) is arranged on the rear side of the adjusting block one (2212). The top comb mechanism (222) includes a mounting plate two (2221). An adjusting groove two is opened on the front side of the mounting plate two (2221). An adjusting block two (2222) is slidably arranged inside the adjusting groove two. A one-way screw two (2223) is rotatably arranged on the top surface of the adjusting block two (2222). The top end of the one-way screw two (2223) penetrates and extends to the top surface of the mounting plate two (2221) and is provided with a knob two (2224). The one-way screw two (2223) is in threaded connection with the mounting plate two (2221). A top comb roller (2225) is arranged on the front side of the adjusting block two (2222). The cutting mechanism (3) includes a cushion table (31). An installation groove is opened on the top surface of the cushion table (31). An electric guide rail (32) is arranged inside the installation groove. A sliding table (33) is slidably arranged at one end of the electric guide rail (32). A double-edge blade (34) is arranged on the top surface of the sliding table (33). A set of clamping mechanisms (35) is arranged on the top surface of the cushion table (31). The clamping mechanism (35) includes a support plate one (351). An adjusting groove three is opened on the front side of the support plate one (351). A motor one (352) is arranged on the top surface of the support plate one (351). The output end of the motor one (352) penetrates and extends to the inside of the adjusting groove three and is provided with a bidirectional screw one (353). Pressure plates (354) are threadedly connected to the outer circles at both ends of the bidirectional screw one (353). The winding mechanism (4) includes a vertical plate (41). A motor two (42) is arranged on the front side of the vertical plate (41). The output end of the motor two (42) penetrates and extends to the rear side of the vertical plate (41) and is provided with a rotating plate (43). An adjusting groove four is opened on the rear side of the rotating plate (43). A knob three (44) is arranged at the top end of the rotating plate (43). A bidirectional screw two (45) is arranged on the bottom surface of the knob three (44).The bottom end of the second bidirectional screw (45) extends through and into the interior of the fourth adjustment groove. Threaded blocks (46) are threadedly connected to the outer circles at both ends of the second bidirectional screw (45). A clamping plate (47) is provided at the rear side of each threaded block (46).

2. The flannelette fixed-length winding device according to claim 1, characterized in that, The two auxiliary mechanisms (21) are respectively located on the left and right sides of the carding mechanism (22).

3. A flannelette fixed-length winding device according to claim 1, characterized in that, Trapezoidal blocks one (5) are arranged on both the left and right sides of the adjusting block one (2212). Trapezoidal grooves one are formed on the inner walls of both sides of the adjusting groove one of the mounting plate one (2211). The trapezoidal blocks one (5) are slidably connected with the trapezoidal grooves one.

4. A flannelette fixed-length winding device according to claim 1, characterized in that, A threaded hole one is formed in the top surface of the mounting plate one (2211). The outer ring of the one-way screw rod one (2213) is threadedly connected with the threaded hole one.

5. A flannelette fixed-length winding device according to claim 1, characterized in that, The top surface of the bottom carding plate (2215) is in an arc-shaped concave shape. A plurality of carding teeth are distributed on the top surface of the bottom carding plate (2215).

6. The flannelette fixed-length rolling device according to claim 1, wherein, Trapezoidal blocks two (6) are arranged on both the left and right sides of the adjusting block two (2222). Trapezoidal grooves two are formed on the inner walls of both sides of the adjusting groove two of the mounting plate two (2221). The trapezoidal blocks two (6) are slidably connected with the trapezoidal grooves two.

7. A flannelette fixed-length rolling device according to claim 1, characterized in that, A threaded hole two is formed in the top surface of the mounting plate two (2221). The outer ring of the one-way screw rod two (2223) is threadedly connected with the threaded hole two.

8. A flannelette fixed-length rolling device according to claim 1, characterized in that, A plurality of carding teeth are distributed on the outer ring of the top carding roller (2225).

9. A flannelette fixed-length winding device according to claim 1, characterized in that A group of support plates two (7) are arranged on the top surface of the cushion table (31). A chute is formed in the front side of the support plate two (7). A guide rod (8) is arranged in the chute. The rear ends of the pressing plates (354) are respectively slidably connected with the outer rings of the corresponding guide rods (8).

10. A flannelette fixed-length winding device according to claim 1, characterized in that, An L-shaped ring strip (9) is arranged on the front side of the rotating plate (43). An L-shaped ring groove is formed in the rear side of the vertical plate (41). The L-shaped ring strip (9) is rotatably connected with the L-shaped ring groove.

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