CN220449224U - Automatic winding mechanism for waterproof coiled material production - Google Patents

Abstract

The utility model discloses an automatic winding mechanism for waterproof coiled material production, which comprises a workbench, wherein two ends of one side of the upper surface of the workbench are fixedly provided with side plates, two groups of deviation correcting plates are oppositely arranged on the side wall of a winding roller through quick adjusting components, the lower ends between the two groups of side plates are fixedly provided with mounting plates, and the mounting plates are provided with dust removing components.

Description

Automatic winding mechanism for waterproof coiled material production

Technical Field

The utility model belongs to the technical field of waterproof coiled material production, and particularly relates to an automatic winding mechanism for waterproof coiled material production.

Background

The waterproof coiled material is mainly used for building walls, roofs, tunnels, roads, landfill sites and the like, plays a role in resisting external rainwater and groundwater leakage, is a flexible coiled building material product, is used as a non-leakage connection between an engineering foundation and a building, is a first waterproof barrier of the whole engineering, and plays a vital role in the whole engineering. When the waterproof coiled material is produced and processed, the rolling work is needed. Publication No.: CN212355864U discloses a coil stock mechanism for waterproof coiled material production, which comprises a mounting rack, a transmission frame and an adjusting frame, wherein a sliding rod is arranged at the lower position inside the mounting rack, the sliding rod is arranged at the middle position inside the mounting rack, the transmission frame is arranged at the upper position of the sliding rod, the lower end of the transmission frame is respectively in sliding connection with the sliding rod and the mounting rack, a fixed guide rail is arranged at the right position of the transmission frame, the fixed guide rail is in rotary connection with the transmission frame through a rotary shaft, a transmission case is arranged at the upper position of the fixed guide rail, a driven conical gear is arranged at the middle position inside the transmission case, and the driven conical gear is connected with a bidirectional threaded rod inside the fixed guide rail; according to the utility model, the problem that the waterproof coiled material is taken off due to the fact that the winding tension cannot be adjusted when the device is used for winding is avoided by arranging the adjusting frame, the threaded frame and the tension adjusting roller.

The problems with the above techniques are: at present, when the waterproof coiled material is coiled on the assembly line, the waterproof coiled material is directly coiled on the collecting cylinder, so that dust adhered to the surface of the waterproof coiled material which is just produced can be coiled together, the dust can be adhered between the waterproof coiled materials, the quality of finished products can be affected by direct selling, meanwhile, when the waterproof coiled materials with different sizes are coiled by coiling equipment, the position of the deviation correcting plate needs to be adjusted by rotating a plurality of bolts, the position adjusting mode is time-consuming and labor-consuming, the construction deviation correcting plate can not be conveniently and rapidly adjusted, and therefore, the working efficiency is reduced, and the automatic coiling mechanism for waterproof coiled material production is provided.

Disclosure of Invention

According to the automatic winding mechanism for the waterproof coiled material production, impurities attached to the coiled material can be scraped in the winding process, dust and other impurities are prevented from being clamped between the coiled materials, the quality of waterproof coiled material finished products is effectively improved, meanwhile, the position of a deviation correcting plate can be conveniently and rapidly adjusted, the position can be rapidly adjusted according to the sizes of different waterproof coiled materials, the convenience and the working efficiency are improved, the problem that dust adhered to the surface of the waterproof coiled material which is just produced is directly wound on a collecting cylinder when the waterproof coiled material is wound on a production line at present, the dust is attached between the waterproof coiled materials, the quality of finished products is affected when the waterproof coiled material is wound on winding equipment, the deviation correcting plate is required to be adjusted through rotating a plurality of bolts, the mode of adjusting the position is time-consuming and labor-consuming, the construction deviation correcting plate cannot be conveniently and rapidly adjusted, and accordingly the working efficiency is reduced is solved.

The utility model discloses an automatic winding mechanism for waterproof coiled material production, which comprises a workbench, wherein two ends of one side of the upper surface of the workbench are fixedly provided with side plates, a winding roller is rotationally connected between two groups of side plates, two ends of the side wall of the winding roller are symmetrically sleeved with deviation correcting plates, one side of each of the two groups of side plates is jointly provided with a bearing plate, the middle part of the upper surface of the bearing plate is provided with a quick adjusting component, the two groups of deviation correcting plates are oppositely arranged on the side wall of the winding roller through the quick adjusting component, the lower ends between the two groups of side plates are fixedly provided with mounting plates, and the mounting plates are provided with dust removing components.

As the preferable mode of the utility model, the rapid adjusting component comprises a screw rod, wherein the screw rod is connected with an adjusting nut through threads, two ends of the bottom of the adjusting nut are respectively and rotatably connected with a driving rod, one ends of two groups of driving rods are respectively and rotatably connected with a connecting block, the connecting blocks are in sliding connection with the upper surface of a bearing plate, and the connecting blocks are fixedly connected with a deviation correcting plate.

As the preferable mode of the utility model, the lower end of the screw rod is rotationally connected with the bearing plate, the upper end of the screw rod is rotationally connected with the top plate, the middle part of the upper surface of the screw rod is fixedly provided with the rotating rod, the rotating rod penetrates through the upper surface of the top plate, and the upper surface of the top plate is provided with a rotating hole.

As the preferable mode of the utility model, the two ends of the bottom of the top plate are symmetrically provided with the guide rods, one end of each guide rod is fixedly connected with the bearing plate, the side wall of each guide rod is sleeved with the guide sleeve in a sliding manner, and the guide sleeves are fixedly connected with the adjusting nuts.

As the preferable mode of the utility model, the dust removing component comprises two groups of gears, the two groups of gears are connected with each other in a meshed mode, one sides of the two groups of gears are connected with toothed plates in a meshed mode, scraping plates are connected to the upper ends of the two groups of toothed plates in a sliding mode, arc-shaped grooves are formed in the upper surfaces of the scraping plates, the scraping plates and the winding rollers are arranged vertically and horizontally, and the two groups of gears are connected with the mounting plate in a rotating mode.

As the preferable mode of the utility model, one end of one group of gears is fixedly provided with a connecting rod, a rotating groove is formed in the mounting plate, two groups of gears are rotatably mounted on one side of the inner part of the rotating groove, lifting grooves are formed in two ends of the upper surface of the mounting plate, the toothed plate is slidably mounted in the lifting grooves, the lifting grooves are communicated with the rotating groove, the connecting rod penetrates through one end of one side of the mounting plate, and a through hole is formed in one end of one side of the mounting plate.

As the preferable mode of the utility model, a group of gears and one end of the connecting rod are respectively provided with a polygonal hole, the inside of the polygonal holes is in sliding connection with a polygonal rod, one end of the polygonal rod is fixedly provided with a linkage plate, one end of the connecting rod is fixedly provided with a rotating plate, a spring is fixedly arranged between the rotating plate and the linkage plate, one side of the inside of the rotating groove is provided with a clamping groove corresponding to the polygonal rod, and the clamping groove is in clamping connection with the polygonal rod.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the upper ends of the two groups of toothed plates are connected with the scraper in a sliding manner, when the waterproof coiled material is coiled, the linkage plate is pulled and rotated, one group of gears can be driven to rotate by the polygonal rod, the other group of gears can be driven to rotate by the one group of gears, then the two groups of toothed plates can be lifted and moved simultaneously, then the scraper is close to the waterproof coiled material, so that the linkage plate can be slowly rotated through the thickness of coiling, dust or impurities attached to the surface of the waterproof coiled material can be effectively scraped, and then the dust can be collected into the arc-shaped groove, so that the impurities and the dust can be effectively prevented from being clamped in the waterproof coiled material, the effect of effectively improving the quality of a waterproof coiled material finished product is achieved, the design that the connecting block is fixedly connected with the deviation correcting plate is achieved, the rotating rod can drive the adjusting nut to lift through the lead screw according to the length of the coiled waterproof coiled material, then the driving rod can drive the deviation correcting plate to slide on the upper surface of the bearing plate, and the restriction position of the deviation correcting plate can be rapidly adjusted, and convenience and working efficiency are improved.

2. According to the utility model, through the design that one ends of the two groups of driving rods are rotationally connected with the connecting blocks, when the adjusting nuts move up and down, the driving rods can push and drive the connecting blocks, and the connecting blocks can move on the bearing plates through sliding reasons, so that the two groups of deviation correcting plates can be simultaneously driven to simultaneously and reversely move when the screw rod rotates, and the convenience is improved.

3. According to the utility model, the rotating rod is fixedly arranged in the middle of the upper surface of the screw rod, and can drive the screw rod to rotate between the top plate and the bearing plate, so that the adjusting nut can move up and down between the top plate and the bearing plate, and the effect that the adjusting nut can be driven to move up and down when the rotating rod rotates is achieved.

4. According to the utility model, through the design that the guide sleeve is fixedly connected with the adjusting nut, the adjusting nut can drive the guide sleeve to slide on the side wall of the guide rod when moving up and down, so that the effect that the stability of the adjusting nut during the up-and-down movement can be improved due to the cooperation between the guide rod and the guide sleeve is achieved.

5. According to the utility model, through the design that the scraping plate and the winding roller are vertically and horizontally arranged, the scraping plate can move up and down at the bottom of the winding roller, then the scraping plate can contact the scraping part with the waterproof coiled material wound on the winding roller, and the scraping plate is arranged in a sliding inserting manner towards the middle part of the workbench, so that the scraping plates with different lengths can be replaced according to the size of the waterproof coiled material wound each time, the scraped impurities or dust can be accumulated in the arc-shaped groove, and the effect of dropping to other parts and increasing cleaning difficulty can be avoided.

6. According to the utility model, through the design that the toothed plate is slidably arranged in the lifting groove, when the two groups of gears rotate simultaneously, the toothed plate can move up and down in the lifting groove, the scraping plate can be close to or far away from the wind-up roller, the connecting rod is rotated, and the stability of rotation of one group of gears can be increased by the connecting rod.

7. According to the utility model, the design that the springs are fixedly arranged between the rotating plate and the linkage plate is adopted, and the springs can drive the polygonal rods to extend into the clamping grooves through the linkage plate, so that the two groups of gears can be conveniently and rapidly fixed.

Drawings

FIG. 1 is a schematic perspective view of the overall structure provided by an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of a dust removing assembly according to an embodiment of the present utility model;

fig. 3 is a schematic perspective view of a quick adjustment assembly according to an embodiment of the present utility model.

In the figure: 1. a work table; 2. a side plate; 3. a deviation correcting plate; 4. a wind-up roll; 5. a mounting plate; 6. a linkage plate; 7. a spring; 8. a polygonal rod; 9. a clamping groove; 10. a quick adjustment assembly; 11. a dust removal assembly; 12. a carrying plate; 13. a guide rod; 14. a guide sleeve; 101. a top plate; 102. a screw rod; 103. a rotating rod; 104. an adjusting nut; 105. a driving rod; 106. a connecting block; 1101. a rotating plate; 1102. a connecting rod; 1103. a gear; 1104. a toothed plate; 1105. a scraper.

Detailed Description

For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings.

The structure of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the automatic winding mechanism for waterproof coiled material production provided by the embodiment of the utility model comprises a workbench 1, wherein two ends of one side of the upper surface of the workbench 1 are fixedly provided with side plates 2, a winding roller 4 is rotationally connected between the two groups of side plates 2, deviation correcting plates 3 are symmetrically sleeved at two ends of the side wall of the winding roller 4, a bearing plate 12 is jointly arranged on one side of the two groups of side plates 2, a quick adjusting assembly 10 is arranged in the middle of the upper surface of the bearing plate 12, the two groups of deviation correcting plates 3 are oppositely arranged on the side wall of the winding roller 4 through the quick adjusting assembly 10, a mounting plate 5 is fixedly arranged at the lower end between the two groups of side plates 2, and a dust removing assembly 11 is arranged on the mounting plate 5.

The scheme is adopted: through the design that two sets of pinion racks 1104 upper ends slip grafting jointly has scraper blade 1105, when carrying out the rolling, pulling and rotate linkage board 6, linkage board 6 can drive a set of gear 1103 rotation through polygonal pole 8, a set of gear 1103 just can drive another set of gear 1103 rotation, afterwards, two sets of pinion racks 1104 just can lift simultaneously and remove, just can make scraper blade 1105 be close to the waterproofing membrane afterwards, consequently, can slowly rotate linkage board 6 through the thickness of rolling, consequently, can effectually strike off the dust or the impurity that adhere to the waterproofing membrane surface, collect in the arc recess afterwards, consequently, can effectually avoid impurity and dust to be pressed from both sides in the waterproofing membrane, thereby reached the effect that can effectually improve waterproofing membrane finished product quality, connecting block 106 and rectifying plate 3 fixed connection's design, according to the length size of the waterproofing membrane of rolling, rotate bull stick 103, bull stick 103 can drive adjusting nut 104 through lead screw 102 and lift the motion, then just can make connecting block 106 slide on loading board 12 upper surface through actuating lever 105, just can drive rectifying plate 3 and slide on rolling roller 4, the position of rectifying plate 3 that just can be fast adjustment, thereby the convenient and fast improvement of work restriction efficiency of rectifying plate 3 has been reached.

Referring to fig. 3, the quick adjustment assembly 10 includes a screw rod 102, the screw rod 102 is connected with an adjustment nut 104 through threads, two ends of the bottom of the adjustment nut 104 are both rotationally connected with driving rods 105, one ends of two groups of driving rods 105 are both rotationally connected with a connecting block 106, the connecting block 106 is slidably connected with the upper surface of the bearing plate 12, and the connecting block 106 is fixedly connected with the deviation correcting plate 3.

The scheme is adopted: through the design that two sets of actuating levers 105 one end all rotates and is connected with connecting block 106, when adjusting nut 104 elevating movement, can make actuating lever 105 promote and drive connecting block 106, connecting block 106 can be through gliding reason on loading board 12 to can drive two sets of rectifying board 3 simultaneously and oppositely remove when having reached screw 102 rotation, improved the convenience.

Referring to fig. 3, the lower end of a screw rod 102 is rotatably connected with a bearing plate 12, the upper end of the screw rod 102 is rotatably connected with a top plate 101, a rotating rod 103 is fixedly installed in the middle of the upper surface of the screw rod 102, the rotating rod 103 penetrates through the upper surface of the top plate 101, and a rotating hole is formed in the upper surface of the top plate 101.

The scheme is adopted: through the design that the middle part of the upper surface of the screw rod 102 is fixedly provided with the rotating rod 103, the rotating rod 103 can drive the screw rod 102 to rotate between the top plate 101 and the bearing plate 12, so that the adjusting nut 104 can lift and move between the top plate 101 and the bearing plate 12, and the effect that the adjusting nut 104 can be driven to move up and down when the rotating rod 103 rotates is achieved.

Referring to fig. 3, two ends of the bottom of the top plate 101 are symmetrically provided with guide rods 13, one end of each guide rod 13 is fixedly connected with the bearing plate 12, a guide sleeve 14 is sleeved on the side wall of each guide rod 13 in a sliding manner, and the guide sleeve 14 is fixedly connected with the adjusting nut 104.

The scheme is adopted: through the design of fixed connection of the guide sleeve 14 and the adjusting nut 104, when the adjusting nut 104 moves up and down, the guide sleeve 14 can be driven to slide on the side wall of the guide rod 13, so that the effect that the stability of the adjusting nut 104 during the up and down movement can be improved due to the cooperation between the guide rod 13 and the guide sleeve 14 is achieved.

Referring to fig. 2, the dust removing assembly 11 includes two sets of gears 1103, the two sets of gears 1103 are connected with each other in a meshed manner, one sides of the two sets of gears 1103 are connected with toothed plates 1104 in a meshed manner, the upper ends of the two sets of toothed plates 1104 are connected with scraping plates 1105 in a sliding manner, arc grooves are formed in the upper surfaces of the scraping plates 1105, the scraping plates 1105 and the wind-up rolls 4 are arranged vertically and horizontally, and the two sets of gears 1103 are connected with the mounting plate 5 in a rotating manner.

The scheme is adopted: through the design that the scraper blade 1105 and wind-up roll 4 are perpendicular level setting, the scraper blade 1105 can be in the elevating movement of wind-up roll 4 bottom, and then the scraper blade 1105 just can contact the waterproofing membrane of scraping part and wind-up on the wind-up roll 4, and the scraper blade 1105 is towards workstation 1 middle part slip grafting installation, consequently can be according to the waterproofing membrane size of rolling at every turn with trading the scraper blade 1105 of different length, just can accumulate the impurity or the dust of scraping into the arc recess in, just can avoid dropping other positions and increase the effect of cleaning the degree of difficulty.

Referring to fig. 2, a connecting rod 1102 is fixedly mounted at one end of a set of gears 1103, a rotating groove is formed in the mounting plate 5, two sets of gears 1103 are rotatably mounted on one side of the rotating groove, lifting grooves are formed at two ends of the upper surface of the mounting plate 5, a toothed plate 1104 is slidably mounted in the lifting grooves, the lifting grooves are communicated with the rotating groove, the connecting rod 1102 penetrates through one end of one side of the mounting plate 5, and a through hole is formed in one end of one side of the mounting plate 5.

The scheme is adopted: through the design of pinion rack 1104 slidable mounting in the lift inslot, when two sets of gears 1103 rotate simultaneously, can make pinion rack 1104 in the lift inslot elevating movement, just can make the scraper blade 1105 be close to or keep away from wind-up roll 4, and rotate connecting rod 1102 can, connecting rod 1102 can increase a set of gear 1103 pivoted stability.

Referring to fig. 2, a set of gears 1103 and one end of a connecting rod 1102 are provided with polygonal holes, the inside of each polygonal hole is slidably inserted with a polygonal rod 8, one end of each polygonal rod 8 is fixedly provided with a linkage plate 6, one end of each connecting rod 1102 is fixedly provided with a rotating plate 1101, a spring 7 is fixedly arranged between each rotating plate 1101 and each linkage plate 6, one side of the inside of each rotating groove is provided with a clamping groove 9 corresponding to each polygonal rod 8, and each clamping groove 9 is clamped with each polygonal rod 8.

The scheme is adopted: through the design that the spring 7 is fixedly installed between the rotating plate 1101 and the linkage plate 6, the spring 7 can drive the polygonal rod 8 to extend into the clamping groove 9 through the linkage plate 6, so that the two groups of gears 1103 can be conveniently and quickly fixed.

The working principle of the utility model is as follows:

when the waterproof coiled material rolling device is used, according to the fact that the coiled waterproof coiled material rotates the rotating rod 103, the rotating rod 103 can drive the adjusting nut 104 to move up and down through the screw rod 102, then the connecting block 106 can slide on the upper surface of the bearing plate 12 through the driving rod 105, the deviation correcting plate 3 can be driven to slide on the rolling roller 4, the limiting position of the deviation correcting plate 3 can be quickly adjusted, the linkage plate 6 is pulled and rotated, the linkage plate 6 can drive one group of gears 1103 to rotate through the polygonal rod 8, one group of gears 1103 can drive the other group of gears 1103 to rotate, then the two groups of toothed plates 1104 can move up and down simultaneously, the scraping plate 1105 can be enabled to be close to the waterproof coiled material, therefore dust or impurities attached to the surface of the waterproof coiled material can be effectively scraped off through the thickness of the rolling device, and then the arc-shaped grooves can be effectively avoided, and the impurities can be clamped in the waterproof coiled material.

To sum up: this an automatic winding mechanism for waterproofing membrane production, cooperation between through quick adjustment subassembly 10 and dust removal subassembly 11, the current waterproofing membrane is rolled on the assembly line in the time of having solved, all be direct rolling to the collecting vessel, this just leads to just produced waterproofing membrane surface to glue the dust that has can be rolled together, the dust can adhere to between the waterproofing membrane, the direct sale can influence the quality of finished product, when rolling equipment carries out the rolling to not equidimension waterproofing membrane simultaneously, just need adjust the position with rectifying plate through rotating a plurality of bolts, this kind of mode of adjusting the position is more time consuming and laborious, can not make things convenient for quick construction rectifying plate to carry out the fast adjustment, thereby the problem of work efficiency has been reduced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. An automatic winding mechanism for waterproof coiled material production, includes workstation (1), its characterized in that: the utility model discloses a workbench, including workstation (1), workstation, wind-up roll, backup pad, collecting plate (2) are all fixedly mounted at both ends of workstation (1) upper surface one side, two sets of rotate between side-mounting plate (2) and be connected with wind-up roll (4), wind-up roll (4) lateral wall both ends symmetry cover is equipped with rectifying board (3), two sets of side-mounting plate (2) one side is provided with loading board (12) jointly, loading board (12) upper surface middle part is provided with quick adjustment subassembly (10), two sets of rectifying board (3) are all through quick adjustment subassembly (10) reverse removal setting on wind-up roll (4) lateral wall, two sets of lower extreme between side-mounting plate (2) has mounting panel (5), be provided with dust removal subassembly (11) on mounting panel (5).

2. An automatic winding mechanism for waterproof coiled material production as claimed in claim 1, wherein: the quick adjustment assembly (10) comprises a screw rod (102), the screw rod (102) is connected with an adjusting nut (104) through threads, two ends of the bottom of the adjusting nut (104) are rotationally connected with driving rods (105), two groups of driving rods (105) are rotationally connected with connecting blocks (106) at one ends, the connecting blocks (106) are slidably connected with the upper surface of a bearing plate (12), and the connecting blocks (106) are fixedly connected with a deviation correcting plate (3).

3. An automatic winding mechanism for waterproof coiled material production as claimed in claim 2, wherein: the lower end of the screw rod (102) is rotationally connected with the bearing plate (12), the upper end of the screw rod (102) is rotationally connected with the top plate (101), a rotating rod (103) is fixedly installed in the middle of the upper surface of the screw rod (102), the rotating rod (103) penetrates through the upper surface of the top plate (101), and a rotating hole is formed in the upper surface of the top plate (101).

4. An automatic winding mechanism for waterproof coiled material production as claimed in claim 3, wherein: guide rods (13) are symmetrically arranged at two ends of the bottom of the top plate (101), one end of each guide rod (13) is fixedly connected with the bearing plate (12), guide sleeves (14) are sleeved on the side walls of the guide rods (13) in a sliding mode, and the guide sleeves (14) are fixedly connected with the adjusting nuts (104).

5. An automatic winding mechanism for waterproof coiled material production as claimed in claim 1, wherein: the dust removal assembly (11) comprises two groups of gears (1103), the two groups of gears (1103) are connected with each other in a meshed mode, one sides of the two groups of gears (1103) are connected with toothed plates (1104) in a meshed mode, the upper ends of the toothed plates (1104) are connected with scraping plates (1105) in a sliding mode, arc-shaped grooves are formed in the upper surfaces of the scraping plates (1105), the scraping plates (1105) and the wind-up rollers (4) are arranged in a vertical and horizontal mode, and the two groups of gears (1103) are connected with the mounting plate (5) in a rotating mode.

6. An automatic winding mechanism for waterproof coiled material production as claimed in claim 5, wherein: a group of gear (1103) one end fixed mounting has connecting rod (1102), the inside rotation groove of seting up of mounting panel (5), two groups gear (1103) are all rotated and are installed in rotation inslot portion one side, the lift groove has all been seted up at mounting panel (5) upper surface both ends, pinion rack (1104) slidable mounting is inside the lift groove, lift groove and rotation groove intercommunication, connecting rod (1102) run through the one end of mounting panel (5) one side, the through-hole has been seted up to the one end of mounting panel (5) one side.

7. An automatic winding mechanism for waterproof coiled material production as claimed in claim 6, wherein: a set of polygonal holes have all been seted up to gear (1103) and connecting rod (1102) one end, polygonal hole inside slip grafting has polygonal pole (8), polygonal pole (8) one end fixed mounting has linkage board (6), connecting rod (1102) one end fixed mounting changes board (1101), fixed mounting has spring (7) between changes board (1101) and linkage board (6), rotate inside one side of groove and seted up joint groove (9) corresponding with polygonal pole (8), joint groove (9) and polygonal pole (8) joint.