Palm fiber cleaning device for palm mattress production

Abstract

The utility model relates to the technical field of mattress production, and discloses a palm fiber cleaning device for palm mattress production, which comprises a cleaning cylinder and further comprises a placing cylinder, a closing cover is arranged in the cleaning cylinder and above the placing cylinder, the closing cover is fixedly connected with the placing cylinder through a bolt, and the cleaning cylinder is fixedly connected with the placing cylinder through a bolt. And rotating rods are fixedly connected to the two sides of the outer wall of the placement cylinder. According to the palm fiber cleaning device, palm fibers can be effectively cleaned through the arranged flushing assembly, sewage in the palm fibers can be effectively extruded and discharged through the arranged extruding assembly, and therefore the cleaning efficiency and effect of the palm fibers can be further improved; according to the palm fiber drying device, palm fibers can be effectively dried, water resources can be effectively recycled through the arranged circulating filtering assembly, and therefore the overall environmental protection property and practicability of the device can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of mattress manufacturing technology, and more specifically, to a palm fiber cleaning device for the production of palm mattresses. Background Technology

[0002] The main raw materials for palm mattresses are mountain palm fibers and coconut fibers. The mountain palm, also known as the palm tree, is a shrub belonging to the palm family. The palm tree trunk is covered with layers of palm fibers. People cut the palm fibers off the palm tree one by one, dry them, and use them to make palm products such as palm mattresses, palm ropes, and raincoats. When processing palm mattresses, a palm fiber cleaning device for palm mattress production is required.

[0003] Traditional cleaning equipment cannot effectively compress palm fibers during the cleaning process. This results in wastewater being absorbed inside the palm fibers, affecting the cleaning effect. Furthermore, traditional equipment cannot effectively recycle water during the cleaning process, leading to significant water waste and reducing the overall environmental friendliness of the equipment. Moreover, traditional equipment often fails to effectively dry the palm fibers after cleaning, requiring them to be air-dried, which reduces the production efficiency of palm mattresses and diminishes the overall practicality of the equipment.

[0004] Therefore, those skilled in the art have provided a palm fiber cleaning device for the production of palm mattresses to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a palm fiber cleaning device for palm mattress production, including a cleaning cylinder, and further comprising:

[0006] A placement cylinder is located inside the cleaning cylinder. A closing cover is provided on the top of the placement cylinder. The closing cover is fixedly connected to the placement cylinder by bolts. Rotating rods are fixedly connected to both sides of the outer wall of the placement cylinder. The other ends of the two rotating rods are rotatably connected to the inner wall of the cleaning cylinder. A first motor is fixedly connected to the outside of the cleaning cylinder. The output shaft of the first motor is fixedly connected to the other end of one of the rotating rods through a coupling.

[0007] A mounting bracket is fixedly connected to the outside of the cleaning drum;

[0008] A rinsing assembly is disposed on the upper surface of the fixing frame;

[0009] An extrusion assembly is disposed at the bottom of the fixing frame;

[0010] A drying assembly is disposed outside the washing drum;

[0011] A filter box is fixedly connected to the outside of the cleaning cylinder. The filter box and the cleaning cylinder are connected by a pipe. The bottom of the filter box is connected to a drain pipe through a solenoid valve.

[0012] A circulating filter assembly is located inside the filter box.

[0013] As a further improvement to this technical solution, the rinsing assembly includes an adjusting plate fixedly connected to the upper surface of the fixing frame. A second motor is fixedly connected to one side of the adjusting plate, and a lead screw is fixedly connected to the output shaft of the second motor via a coupling. The other end of the lead screw is rotatably connected to the inner side wall of the adjusting plate. A threaded block is threaded to the outer surface of the lead screw. A guide groove for the threaded block to move is provided on the upper surface of the adjusting plate. An upper plate is fixedly connected to the upper surface of the threaded block. An electric telescopic rod is fixedly connected to the upper surface of the upper plate. A mounting frame is fixedly connected to the telescopic end of the electric telescopic rod. A rinsing head is fixedly connected to the bottom of the mounting frame. A rear plate is fixedly connected to the rear end surface of the fixing frame. A water pump is fixedly connected to the upper surface of the rear plate. The outlet of the water pump is connected to the interior of the rinsing head via a pipe, and the inlet of the water pump is connected to the bottom of the filter box via a pipe.

[0014] As a further improvement to this technical solution, the extrusion assembly includes a transmission plate fixedly connected to the bottom of the fixed frame. A third motor is fixedly connected to one side of the transmission plate. The output shaft of the third motor is fixedly connected to a bidirectional threaded rod via a coupling. The other end of the bidirectional threaded rod is rotatably connected to the inner sidewall of the transmission plate. Threaded plates are symmetrically arranged on the outside of the bidirectional threaded rod. A guide groove for the threaded plates to move is opened on the front surface of the transmission plate. Movable plates are fixedly connected to the front surfaces of the two threaded plates. Two connecting rods are fixedly connected to opposite sides of the two movable plates. An extrusion disc is fixedly connected to the other end of each pair of connecting rods. Guide grooves for the connecting rods to move are opened on both sides of the outer wall of the cleaning cylinder. Movable grooves for the connecting rods to move are opened inside the placement cylinder and the closing cover.

[0015] As a further improvement to this technical solution, the drying assembly includes a support plate fixedly connected to the outside of the washing cylinder. A drying device is fixedly connected to the upper surface of the support plate. Mounting plates are symmetrically arranged on the outside of the rinsing head. Mounting holes for mounting the drying heads are opened through the interior of both mounting plates. The drying device is connected to the two drying heads through a branch pipe.

[0016] As a further improvement to this technical solution, the circulating filtration assembly includes an activated carbon filter plate disposed inside the filter box. A side plate is fixedly connected to one side of the activated carbon filter plate, and insert blocks are symmetrically arranged on the outside of the side plate. Mounting frames are fixedly connected to the front and rear surfaces of the filter box, and guide grooves for the insert blocks to move are opened inside the two mounting frames.

[0017] As a further improvement to this technical solution, mounting blocks are fixedly connected to the outside of both mounting frames. A fixing rod is provided inside the mounting block. A pull ring is fixedly connected to one end of the fixing rod. An abutment plate is fixedly connected to the outside of the fixing rod. A return spring is sleeved on the outside of the fixing rod. The return spring abuts against the abutment plate and the mounting block. Guide grooves for the movement of the fixing rod are opened on the contact surfaces of the mounting block and the mounting frame. Guide grooves for the movement of the fixing rod are opened inside the insert block.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] This palm fiber cleaning device for palm mattress production includes a rinsing component, a squeezing component, a drying component, and a circulating filtration component. When cleaning the palm fibers is required, the fibers are first placed inside a placement cylinder, then the closed cover is secured to the cylinder. Water is then added to the filtration box, at which point the rinsing component begins operation. This effectively transfers water from the filtration box to the cleaning cylinder, thus effectively cleaning the palm fibers inside. Simultaneously, the squeezing component also operates, effectively squeezing the palm fibers inside the cylinder to expel the adsorbed wastewater, significantly improving the cleaning efficiency. In addition to the washing effect, the first motor also starts running synchronously during the operation of the rinsing component. At this time, the first motor drives the rotating rod to rotate synchronously, and the rotating rod drives the placement cylinder to repeatedly perform forward and reverse processes. This further improves the cleaning efficiency and effect of the palm fibers, effectively enhancing the overall practicality of the device. After the palm fibers are cleaned, the drying component starts operating. At this time, the drying component can effectively dry the palm fibers inside the placement cylinder, thereby further improving the production efficiency of the palm mat in the later stage. Through the setting of the circulating filter component, water resources can be effectively recycled, thus effectively protecting water resources and avoiding a large amount of water waste during the operation of the device, effectively improving the overall environmental protection and practicality of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0021] Figure 2This is a top-view three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the activated carbon filter plate after disassembly in this utility model;

[0023] Figure 4 This is a rear-view three-dimensional structural diagram of the present invention;

[0024] Figure 5 for Figure 3 A magnified structural diagram of region A in the middle.

[0025] The meanings of the labels in the diagram are as follows:

[0026] 1. Cleaning cylinder; 2. Placement cylinder; 3. Closing cover; 4. First motor; 5. Filter box; 6. Fixing frame; 7. Rear plate; 8. Second motor; 9. Lead screw; 10. Threaded block; 11. Top plate; 12. Electric telescopic rod; 13. Mounting frame; 14. Flushing head; 15. Rotating rod; 16. Adjusting plate; 17. Activated carbon filter plate; 18. Side plate; 19. Insert block; 20. Threaded plate; 21. Moving plate; 22. Connecting rod; 23. Extrusion plate; 24. Support plate; 25. Drying equipment; 26. Branch pipe; 27. Mounting plate; 28. Drying head; 29. ​​Water pump; 30. Solenoid valve; 31. Drain pipe; 32. Third motor; 33. Bidirectional threaded rod; 34. Transmission plate; 35. Mounting frame; 36. Mounting block; 37. Fixing rod; 38. Contact plate; 39. Return spring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 - Figure 5 As shown, this embodiment provides a palm fiber cleaning device for palm mattress production, including a cleaning cylinder 1, and further comprising:

[0029] Placement cylinder 2 is located inside cleaning cylinder 1. A closing cover 3 is provided above placement cylinder 2. The closing cover 3 is fixedly connected to placement cylinder 2 by bolts. Rotating rods 15 are fixedly connected to both sides of the outer wall of placement cylinder 2. The other ends of the two rotating rods 15 are rotatably connected to the inner wall of cleaning cylinder 1. A first motor 4 is fixedly connected to the outside of cleaning cylinder 1. The output shaft of the first motor 4 is fixedly connected to the other end of one of the rotating rods 15 through a coupling.

[0030] The fixing bracket 6 is fixedly connected to the outside of the cleaning cylinder 1;

[0031] The rinsing assembly is located on the upper surface of the mounting bracket 6;

[0032] The extrusion assembly is located at the bottom of the mounting bracket 6;

[0033] The drying assembly is located outside the washing drum 1;

[0034] The filter box 5 is fixedly connected to the outside of the cleaning cylinder 1. The filter box 5 and the cleaning cylinder 1 are connected by a pipe. The bottom of the filter box 5 is connected to the drain pipe 31 through the solenoid valve 30.

[0035] The circulating filter assembly is located inside the filter box 5.

[0036] The working principle described above is as follows: When it is necessary to clean the palm fibers, simply place the palm fibers inside the placement cylinder 2, then fix the closing cover 3 between it and the placement cylinder 2, and then add water into the filter box 5. At this time, the rinsing component starts to operate. The rinsing component can effectively transfer the water inside the filter box 5 to the cleaning cylinder 1, thereby effectively cleaning the palm fibers inside the placement cylinder 2. During the operation of the rinsing component, the squeezing component will also start to operate simultaneously. At this time, the squeezing component can effectively squeeze the palm fibers inside the placement cylinder 2, thereby squeezing out the wastewater adsorbed inside the palm fibers, effectively improving the cleaning efficiency and effect of the palm fibers. During the operation of the rinsing component, the first... Motor 4 will also start running synchronously. At this time, the first motor 4 will drive the rotating rod 15 to rotate synchronously. The rotating rod 15 will then drive the placement cylinder 2 to repeatedly perform forward and reverse rotation. This will further improve the cleaning efficiency and effect of the palm fibers, effectively enhancing the overall practicality of the device. After the palm fibers are cleaned, the drying component will start running. At this time, the drying component can effectively dry the palm fibers inside the placement cylinder 2, thereby further improving the production efficiency of the palm mat in the later stage. Through the setting of the circulating filter component, water resources can be effectively recycled, thus effectively protecting water resources and avoiding a large amount of water waste during the operation of the device, effectively improving the overall environmental protection and practicality of the device.

[0037] To effectively clean the palm fibers, the rinsing assembly includes an adjusting plate 16 fixedly connected to the upper surface of the mounting frame 6. A second motor 8 is fixedly connected to one side of the adjusting plate 16, and a lead screw 9 is fixedly connected to the output shaft of the second motor 8 via a coupling. The other end of the lead screw 9 is rotatably connected to the inner wall of the adjusting plate 16. A threaded block 10 is threadedly connected to the outer surface of the lead screw 9. A guide groove for the threaded block 10 to move is provided on the upper surface of the adjusting plate 16. An upper plate 11 is fixedly connected to the upper surface of the threaded block 10, and an electric telescopic rod 12 is fixedly connected to the upper surface of the upper plate 11. A mounting frame 13 is fixedly connected to the telescopic end of the electric telescopic rod 12, and a rinsing head 14 is fixedly connected to the bottom of the mounting frame 13. A rear plate 7 is fixedly connected to the rear end surface of the mounting frame 6, and a water pump 29 is fixedly connected to the upper surface of the rear plate 7. The outlet of the water pump 29 is connected to the interior of the rinsing head 14 via a pipe, and the inlet of the water pump 29 is connected to the bottom of the filter box 5 via a pipe. When the palm fibers need to be cleaned, simply add water to the filter box 5. The water pump 29 will then start running, pumping the water from the filter box 5 through pipes to the flushing head 14, where it will be sprayed out, effectively cleaning the palm fibers. Simultaneously, the second motor 8 will also start running, driving the lead screw 9 to rotate. The threaded block 10 will move synchronously outside the lead screw 9, causing the upper plate 11 to move synchronously. The upper plate 11 then drives the electric telescopic rod 12 and the mounting bracket 13 to move synchronously. The mounting bracket 13 then drives the flushing head 14 to move synchronously. This allows for effective adjustment of the flushing head 14's position, improving the cleaning efficiency and effectiveness of the palm fibers. The electric telescopic rod 12 allows for effective adjustment of the flushing head 14's height.

[0038] Considering that wastewater may be absorbed inside the palm fibers during the washing process, the extrusion assembly includes a transmission plate 34 fixedly connected to the bottom of the fixed frame 6. A third motor 32 is fixedly connected to one side of the transmission plate 34. The output shaft of the third motor 32 is fixedly connected to a bidirectional threaded rod 33 via a coupling. The other end of the bidirectional threaded rod 33 is rotatably connected to the inner wall of the transmission plate 34. Threaded plates 20 are symmetrically arranged on the outside of the bidirectional threaded rod 33. A guide groove for the threaded plates 20 to move is opened on the front surface of the transmission plate 34. A movable plate 21 is fixedly connected to the front surface of each of the two threaded plates 20. Two connecting rods 22 are fixedly connected to opposite sides of each of the two movable plates 21. An extrusion disc 23 is fixedly connected to the other end of each pair of connecting rods 22. Guide grooves for the connecting rods 22 to move are opened on both sides of the outer wall of the washing cylinder 1. The cylinder 2 and the closing cover are placed. The interior of each of the three components has movable grooves for the connecting rod 22 to move. During the cleaning process of the palm fibers, a large amount of wastewater is absorbed inside the palm fibers. At this time, the third motor 32 starts to run, and the third motor 32 drives the bidirectional threaded rod 33 to rotate synchronously. The threaded plate 20 moves synchronously outside the bidirectional threaded rod 33, driving the moving plate 21 to move synchronously. The moving plate 21 then drives the connecting rod 22 and the extrusion plate 23 to move synchronously. At this time, the palm fibers can be extruded by the extrusion plate 23, thereby squeezing out the wastewater inside the palm fibers, further improving the cleaning efficiency and effect of the palm fibers. Through the movable grooves for the connecting rod 22 to move inside the placement cylinder 2 and the closing cover 3, the placement cylinder 2 can be rotated normally in both directions (the rotation range of the placement cylinder 2 is within the numerical range set by the third motor 32).

[0039] To effectively dry the palm fibers, the drying assembly includes a support plate 24 fixedly connected to the outside of the washing cylinder 1. A drying device 25 is fixedly connected to the upper surface of the support plate 24. Mounting plates 27 are symmetrically arranged on the outside of the rinsing head 14. The interior of each mounting plate 27 has through holes for mounting the drying heads 28. The drying device 25 and the two drying heads 28 are connected by a branch pipe 26. After the palm fibers are cleaned, the drying device 25 starts to operate. At this time, the drying device 25 will transmit hot air to the interior of the drying heads 28 through the branch pipe 26 and then discharge it through the drying heads 28. This effectively dries the palm fibers inside the placement cylinder 2, thereby further improving the production efficiency of the palm mat in the later stage (the water pump 29 stops operating during the operation of the drying device 25).

[0040] To effectively recycle water resources, the circulating filtration assembly includes an activated carbon filter plate 17 installed inside the filter box 5. A side plate 18 is fixedly connected to one side of the activated carbon filter plate 17, and inserts 19 are symmetrically arranged on the outside of the side plate 18. Mounting frames 35 are fixedly connected to the front and rear surfaces of the filter box 5. Guide grooves for the inserts 19 to move are opened inside the two mounting frames 35. When the flushing head 14 sprays water into the cleaning cylinder 1, the water is transferred to the inside of the filter box 5 through the pipe at the bottom of the cleaning cylinder 1. When the water enters the inside of the filter box 5, the activated carbon filter plate 17 can effectively filter the water. At this time, the water pump 29 will pump the water inside the filter box 5 back into the flushing head 14. This cycle is repeated to effectively recycle water resources, effectively improving the overall environmental friendliness and practicality of the device.

[0041] In addition, to facilitate the fixed installation of the activated carbon filter plate 17, mounting blocks 36 are fixedly connected to the outside of both mounting frames 35. A fixing rod 37 is provided inside the mounting block 36, with a pull ring fixedly connected to one end of the fixing rod 37. An abutment plate 38 is fixedly connected to the outside of the fixing rod 37, and a return spring 39 is sleeved on the outside of the fixing rod 37. The return spring 39 abuts against the abutment plate 38 and the mounting block 36. Guide grooves for the movement of the fixing rod 37 are provided on the contact surfaces of the mounting block 36 and the mounting frame 35. A guide groove for the movement of the fixing rod 37 is also provided inside the insert block 19. When the activated carbon filter plate 17 needs to be fixedly installed, simply pull the pull ring first. When the pull ring moves, the fixing rod 37 moves synchronously, and the fixing rod 37 moves the contact plate 38 synchronously. During the movement of the contact plate 38, the return spring 39 is squeezed. At this time, the mounting block 36 is inserted into the inside of the mounting frame 35, and then the pull ring is released. At this time, the return spring 39 returns to its original position, and the contact plate 38 and the fixing rod 37 move synchronously. When the fixing rod 37 is inserted into the guide groove inside the mounting block 36, the mounting block 36 and the mounting frame 35 can be fixed. At this time, the activated carbon filter plate 17 can be fixedly installed, and it is also convenient for the staff to disassemble and replace the activated carbon filter plate 17, further improving the overall practicality of the device.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A palm fiber cleaning device for producing palm mattresses, comprising a cleaning cylinder (1), characterized in that, Also includes: A placement cylinder (2) is located inside the cleaning cylinder (1). A closing cover (3) is provided above the placement cylinder (2). The closing cover (3) is fixedly connected to the placement cylinder (2) by bolts. Rotating rods (15) are fixedly connected to both sides of the outer wall of the placement cylinder (2). The other ends of the two rotating rods (15) are rotatably connected to the inner wall of the cleaning cylinder (1). A first motor (4) is fixedly connected to the outside of the cleaning cylinder (1). The output shaft of the first motor (4) is fixedly connected to the other end of one of the rotating rods (15) through a coupling. A fixing bracket (6) is fixedly connected to the outside of the cleaning cylinder (1); A rinsing assembly is disposed on the upper surface of the fixture (6); An extrusion assembly is disposed at the bottom of the fixing frame (6); A drying assembly is disposed outside the washing cylinder (1); The filter box (5) is fixedly connected to the outside of the cleaning cylinder (1). The filter box (5) and the cleaning cylinder (1) are connected by a pipe. The bottom of the filter box (5) is connected to a drain pipe (31) through a solenoid valve (30). A circulating filter assembly is disposed inside the filter box (5).

2. The palm fiber cleaning device for palm mattress production according to claim 1, characterized in that: The flushing assembly includes an adjusting plate (16) fixedly connected to the upper surface of the fixing frame (6). A second motor (8) is fixedly connected to one side of the adjusting plate (16). The output shaft of the second motor (8) is fixedly connected to a lead screw (9) via a coupling. The other end of the lead screw (9) is rotatably connected to the inner sidewall of the adjusting plate (16). A threaded block (10) is threadedly connected to the outer surface of the lead screw (9). A guide groove for the movement of the threaded block (10) is provided on the upper surface of the adjusting plate (16). An upper plate (11) is fixedly connected to the upper surface of the threaded block (10). An electric telescopic rod (12) is fixedly connected to the upper surface of the upper plate (11). An installation frame (13) is fixedly connected to the telescopic end of the electric telescopic rod (12). A flushing head (14) is fixedly connected to the bottom of the installation frame (13). A rear plate (7) is fixedly connected to the rear end surface of the fixed frame (6). A water pump (29) is fixedly connected to the upper surface of the rear plate (7). The water outlet of the water pump (29) is connected to the inside of the flushing head (14) through a pipe. The water inlet of the water pump (29) is connected to the bottom of the filter box (5) through a pipe.

3. The palm fiber cleaning device for producing palm mattresses according to claim 1, characterized in that: The extrusion assembly includes a transmission plate (34) fixedly connected to the bottom of the fixed frame (6). A third motor (32) is fixedly connected to one side of the transmission plate (34). The output shaft of the third motor (32) is fixedly connected to a bidirectional threaded rod (33) via a coupling. The other end of the bidirectional threaded rod (33) is rotatably connected to the inner wall of the transmission plate (34). Threaded plates (20) are symmetrically arranged on the outside of the bidirectional threaded rod (33). A guide groove for the threaded plate (20) to move is opened on the front surface of the transmission plate (34). A movable plate (21) is fixedly connected to the front surface of each of the two threaded plates (20). Two connecting rods (22) are fixedly connected to the opposite side of each of the two movable plates (21). An extrusion disc (23) is fixedly connected to the other end of each pair of connecting rods (22). Guide grooves for the connecting rods (22) to move are opened on both sides of the outer wall of the cleaning cylinder (1). Movable grooves for the connecting rods (22) to move are opened inside the placement cylinder (2) and the closing cover (3).

4. The palm fiber cleaning device for palm mattress production according to claim 2, characterized in that: The drying assembly includes a support plate (24) fixedly connected to the outside of the washing cylinder (1). A drying device (25) is fixedly connected to the upper surface of the support plate (24). The outside of the rinsing head (14) is symmetrically provided with mounting plates (27). The interior of the two mounting plates (27) is provided with mounting holes for mounting the drying heads (28). The drying device (25) and the two drying heads (28) are connected by a branch pipe (26).

5. A palm fiber cleaning device for producing palm mattresses according to claim 1, characterized in that: The circulating filtration assembly includes an activated carbon filter plate (17) disposed inside the filter box (5). A side plate (18) is fixedly connected to one side of the activated carbon filter plate (17). Insert blocks (19) are symmetrically arranged on the outside of the side plate (18). Mounting frames (35) are fixedly connected to the front and rear surfaces of the filter box (5). Guide grooves for the insertion blocks (19) to move are opened inside the two mounting frames (35).

6. The palm fiber cleaning device for producing palm mattresses according to claim 5, characterized in that: Both mounting frames (35) are fixedly connected to the outside of mounting blocks (36). The inside of the mounting block (36) is provided with a fixing rod (37). One end of the fixing rod (37) is fixedly connected with a pull ring. The outside of the fixing rod (37) is fixedly connected with an abutment plate (38). The outside of the fixing rod (37) is fitted with a return spring (39). The return spring (39) abuts between the abutment plate (38) and the mounting block (36). The contact surfaces of the mounting block (36) and the mounting frame (35) are provided with guide grooves for the movement of the fixing rod (37). The inside of the insert block (19) is provided with a guide groove for the movement of the fixing rod (37).

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