CN113601665B

CN113601665B - Cabinet door plate edge sealing and glue removing system

Info

Publication number: CN113601665B
Application number: CN202110941876.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Dachang Jinyu Tiantan Furniture Co ltd
Current assignee: Dachang Jinyu Tiantan Furniture Co ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-07-22
Anticipated expiration: 2041-08-17
Also published as: CN113601665A

Abstract

The invention belongs to the field of cabinet door plate processing equipment, and relates to a cabinet door plate edge sealing and glue removing system which comprises a shell, wherein shell supporting legs are fixedly arranged at the rear end of the shell, a long supporting base and a short supporting base are fixedly arranged on the shell, a side edge positioning device is slidably arranged on the supporting base, a heightening plate is fixedly arranged on the upper end surface of the side edge positioning device, an edge sealing device is arranged on the heightening plate and used for performing edge sealing treatment on a plate, a clamping device is slidably and rotatably arranged on the shell, and a chain transmission device is fixedly arranged on the upper end surface of the shell. According to the invention, after a plate is placed, side edge alignment and edge sealing can be automatically carried out, meanwhile, the movement of the plate in the vertical direction can be limited, so that the edge sealing strips can be effectively attached to the side surfaces of the plate, the edge sealing positions can be automatically rotated in the direction to change after the edge sealing of the two sides of the plate is finished, and the plate can be automatically trimmed and polished in the edge sealing process.

Description

Cupboard door plant banding removes system of gluing

Technical Field

The invention belongs to the field of cabinet door plate processing equipment, and particularly relates to a cabinet door plate edge sealing and glue removing system.

Background

As is well known, the cupboard panel of strict banding, not only let the cupboard seem more pleasing to the eye, and can effectual increase of service life, banding discontinuous or inhomogeneous phenomenon often appears at the banding in-process in the bag sealer on the market at present, lead to the banding unevenness to appear, the perk phenomenon, influence furniture life and pleasing to the eye degree, one of them part reason is exactly that the contained angle of side and banding device is not the right angle, and most bag sealer complicacy often appears the motor stall, phenomenons such as pneumatic valve malfunction transmission skew, most bag sealer is bulky big structure complicacy also leads to the maintenance inconvenience, and bag sealer on the market can only carry out the banding of both sides to the door plant once, can't carry out the banding simultaneously to panel four sides and handle.

Disclosure of Invention

The invention aims to solve the problems in the prior art, and provides a cabinet door panel edge sealing and glue removing system which can automatically position the side edge of a plate, can simultaneously perform edge cutting and polishing when the plate is subjected to edge sealing, and can automatically change the edge sealing position to realize the four-edge sealing of the plate.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a cupboard door plant banding removes system of gluing, includes the casing, the casing rear end is fixed to be equipped with the casing landing leg, fixed long support base and the short support base of being equipped with on the casing, the last slip of support base is equipped with side positioner, side positioner is used for the location to the panel side, the fixed board that increases that is equipped with of side positioner up end, increase and be equipped with the banding device on the board, the banding device is used for carrying out the banding to panel and handles, it is equipped with clamping device just to slide on the casing, clamping device removes when being used for pressing from both sides fastening panel and preventing the banding, the casing up end is fixed to be equipped with chain drive, chain drive is used for controlling clamping device's rotation and slip.

Preferably, side positioner is including fixed setting up long supporting pedestal on the face of the casing upper end left and right sides, the last fixed long rack that is equipped with of long supporting pedestal, the fixed short supporting pedestal who is equipped with front and back symmetry in the inclined to left side in casing middle part, the last fixed short rack that is equipped with of short supporting pedestal, long supporting pedestal with it is equipped with the short beam, every to slide between the short supporting pedestal the short beam both ends are all fixed and are equipped with the short beam motor, be equipped with the short beam motor shaft on the output of short beam motor, the last fixed short beam motor gear that is equipped with of short beam motor shaft, short beam motor gear with long rack toothing, short beam motor gear with short rack toothing.

Preferably, a long beam is slidably arranged between each short rack and each long rack, a long beam motor is fixedly arranged at each of two ends of each long beam, a long beam motor shaft is fixedly arranged at the output end of each long beam motor, a long beam motor gear is fixedly arranged on each long beam motor shaft, the long beam motor gear is meshed with the long racks, the long beam motor gear is meshed with the short racks, tensioning wheel fixing plates are uniformly and fixedly arranged on the inner sides of the short beams and the long beams, tensioning wheels are slidably arranged in the tensioning wheel fixing plates, and tensioning wheel springs are connected between the tensioning wheel fixing plates and the tensioning wheels.

Preferably, the banding device is including fixed setting long roof beam with increase the board on the short beam, it is fixed to be equipped with banding strip fixed column to increase the board right-hand member, it is equipped with the banding strip to rotate on the banding strip fixed column, the fixed heating piece that is equipped with in banding strip left side, the fixed sensor that is equipped with in heating piece left side, the fixed disjunctor that is equipped with in sensor left side, the fixed edging sander that is equipped with in disjunctor left side, the fixed sanding block dead lever that is equipped with on the inside upper and lower both sides wall of edging sander left end, it is equipped with the sanding block to slide on the sanding block dead lever, sanding block dead lever with be connected with the sanding block spring between the sanding block, the symmetry is fixed on the inside upper and lower both sides wall of edging sander right-hand member is equipped with the edging blade.

Preferably, clamping device sets up including sliding slider in the casing spout, it is equipped with big sprocket shaft to rotate on the slider, the fixed big sprocket that is equipped with in big sprocket shaft bottom, the fixed panel fixed plate that is equipped with in big sprocket shaft upper end, the fixed sucking disc that is equipped with of the inside symmetry of panel fixed plate, the fixed trachea that is equipped with in sucking disc bottom, the inside negative-pressure pump that is equipped with of casing downside, the fixed trachea fixed block that is equipped with of negative-pressure pump upside, the trachea fixed block with trachea fixed connection.

Preferably, a square chuck is arranged in the middle of the large chain wheel shaft in a sliding manner, a beam sliding block is fixedly arranged at the tail end of the square chuck, a clamping fixing plate is fixedly arranged on the upper side of the beam sliding block, lower hinged joints are symmetrically and fixedly arranged on two sides of the upper end of the clamping fixing plate, a supporting sliding chute rod is fixedly arranged on the clamping fixing plate, a pneumatic rod sliding block is arranged on the supporting sliding chute rod in a sliding manner, the pneumatic rod sliding block is fixedly provided with a pneumatic telescopic rod, the left end and the right end of the pneumatic telescopic rod are fixedly and symmetrically provided with hinged fixed blocks, the supporting chute rod is provided with a pressing plate in a sliding way, the two sides of the lower bottom surface of the pressing plate are symmetrically and fixedly provided with upper hinged joints, go up the articulated head with it is equipped with the hinge bar to articulate between the articulated fixed block, down the articulated head with it is equipped with the hinge bar to articulate between the articulated fixed block, the fixed symmetry in pressure strip bottom surface is equipped with and compresses tightly the dish.

Preferably, chain drive is including fixed locating sprocket shaft on the casing, the epaxial fixed little sprocket that is equipped with of sprocket, two horizontal little sprocket is a set of, every group be connected with the chain between the little sprocket, the chain with big sprocket meshing, casing spout internal fixation is equipped with stroke sensor, stroke sensor is used for controlling the direction of rotation of two sets of little sprockets.

When the need is carried out the banding to panel and is handled, place panel on the panel fixed plate, side positioner is worked as and is carried out the side location to panel, negative pressure pump work simultaneously, take out the inside air of the sucking disc of symmetric distribution on the panel fixed plate, make to form the negative pressure chamber between sucking disc and the panel, work shrink articulated fixed block makes the pressure strip move down in the spout that supports the spout pole immediately, make pressure strip bottom surface and panel contact and then compress tightly panel, side positioner can effectual to the panel location, make the banding strip can perfect laminating panel side, clamping device adopts sucking disc and the cooperation of air jig, make panel be difficult for removing when removing more.

When needs panel march, the motor antiport of two sets of little sprockets of simultaneous start control, make big sprocket move left under the drive of two sets of chains, drive the slider that is fixed in big sprocket shaft bottom simultaneously and slide to left in the spout of casing, the banding passes through the guide block direction simultaneously, make banding strip laminating panel, heat the extrusion through the heating block, make banding strip and panel bonding, edging blade and the piece of polishing that sets up in the rethread edging sander, carry out edging and the processing of polishing to respectively the banding strip, unnecessary banding strip can be cut to the device of edging, and can simply and effectual automatic panel corner of polishing after the edging.

Trigger the cutter work when panel is terminal to pass through the sensor and make the cutter cut off banding strip, when the slider extrudeed stroke sensor in the casing spout, the motor syntropy of two sets of little sprockets of control rotates, thereby it rotates to make big sprocket rotate and drive the panel of fixing on the panel fixed plate, rotate to not banding department, carry out the banding of one step with the last and handle until finishing, horizontal migration and the rotation that clamping device was realized to positive and negative commentaries on classics through control sprocket motor, make when to panel other both sides limit banding, need not dismantle again and press from both sides tightly.

Compared with the prior art, this cupboard door plant banding degumming system has following advantage:

1. side positioner can be effectual to panel location for the banding strip can perfectly laminate the panel side, and clamping device adopts sucking disc and air jig cooperation, makes panel be difficult for removing when removing.

2. The edging device can cut redundant edge banding strips, and can simply and effectively polish the plate corners automatically after the edge banding strips are cut.

3. The horizontal movement and the rotation of the clamping device are realized by controlling the positive and negative rotation of the chain wheel motor, so that when the edges of the other two sides of the plate are sealed, the clamping device is not required to be detached and clamped.

Drawings

Fig. 1 is a schematic structural view of a cabinet door panel edge banding and glue removing system.

Fig. 2 is a sectional view taken along a line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

Fig. 4 is an enlarged view of the structure at C in fig. 2.

Fig. 5 is a sectional view taken along line D-D in fig. 4.

Fig. 6 is a sectional view at E of fig. 1.

In the figure, 10, the housing; 11. a long rack; 12. a short beam motor; 13. a short beam motor shaft; 14. a short beam motor gear; 15. a tension wheel spring; 16. a tension wheel fixing plate; 17. a tension wheel; 18. a trimming sander; 19. a guide block; 20. a plate fixing plate; 21. a suction cup; 22. a heating block; 23. a guide block; 24. a long beam motor gear; 25. a long beam motor shaft; 26. a long beam motor; 27. a support runner bar; 28. a sensor; 29. an edge banding; 30. a cutter; 31. a small sprocket; 32. a chain; 33. a housing leg; 34. a sprocket shaft; 35. a travel sensor; 36. a negative pressure pump; 37. a trachea fixing block; 38. an air tube; 39. a slider; 40. a large sprocket; 41. a compression plate; 42. a hinged lever; 43. a pneumatic telescopic rod; 44. a compression disc; 45. the fixed block is hinged; 46. a short support base; 47. a long support base; 48. a large sprocket shaft; 49. a square chuck; 50. a beam slider; 51. clamping the fixing plate; 52. an upper hinge joint; 53. grinding blocks; 54. polishing a block spring; 55. fixing a polishing block; 56. a trimming blade; 57. a short rack; 58. a short beam; 59. a long beam; 60. an edge banding strip fixing column; 61. heightening a plate; 62. a lower hinge joint; 63. a pneumatic rod slider.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, a cupboard door plant banding removes system of gluing, including casing 10, casing 10 rear end is fixed and is equipped with casing landing leg 33, fixed long supporting pedestal 47 and the short supporting pedestal 46 of being equipped with on the casing 10, the last slip of supporting pedestal is equipped with side positioner, side positioner is used for the location to the panel side, the fixed board 61 that increases that is equipped with of side positioner up end, it is equipped with the banding device on the board 61 to increase, the banding device is used for carrying out the banding to panel and handles, it is equipped with clamping device just to slide on the casing 10, clamping device is used for pressing from both sides the fixed panel and removes when preventing the banding, the fixed chain drive that is equipped with of casing 10 up end, chain drive is used for controlling clamping device's rotation and slip.

As shown in fig. 1 and 2, the side positioning device includes a long support base 47 fixedly disposed on left and right sides of the upper end of the casing 10, a long rack 11 is fixedly disposed on the long support base 47, a short support base 46 symmetrically disposed on the left side of the middle portion of the casing 10, a short rack 57 is fixedly disposed on the short support base 46, a short beam 58 is slidably disposed between the long support base 47 and the short support base 46, each of two ends of the short beam 58 is fixedly disposed with a short beam motor 12, a short beam motor shaft 14 is disposed on the output end of the short beam motor 12, a short beam motor gear 13 is fixedly disposed on the short beam motor shaft 14, the short beam motor gear 13 is engaged with the long rack 11, and the short beam motor gear 13 is engaged with the short rack 57.

As shown in fig. 1 and 2, a long beam 59 is slidably disposed between each short rack 57 and the long rack 11, long beam motors 26 are fixedly disposed at both ends of each long beam 59, a long beam motor shaft 25 is fixedly disposed at an output end of each long beam motor 26, a long beam motor gear 24 is fixedly disposed on the long beam motor shaft 25, the long beam motor gear 24 is engaged with the long rack 11, the long beam motor gear 24 is engaged with the short rack 57, tensioning wheel fixing plates 16 are uniformly and fixedly disposed inside the short beam 58 and the long beam 59, tensioning wheels 17 are slidably disposed in the tensioning wheel fixing plates 16, and tensioning wheel springs 15 are connected between the tensioning wheel fixing plates 16 and the tensioning wheels 17.

As shown in fig. 2 and 6, the edge banding device includes raised plates 61 fixedly provided on the long beams 59 and the short beams 58, an edge sealing strip fixing column 60 is fixedly arranged at the right end of the heightening plate 61, an edge sealing strip 29 is rotatably arranged on the edge sealing strip fixing column 60, the left side of the edge sealing strip 29 is fixedly provided with a heating block 22, the left side of the heating block 22 is fixedly provided with a sensor 28, a cutter 30 is fixedly arranged at the left side of the sensor 28, a trimming sander 18 is fixedly arranged at the left side of the cutter 30, the upper and lower side walls inside the left end of the edging sander 18 are fixedly provided with sanding block fixing rods 55, a polishing block 53 is slidably arranged on the polishing block fixing rod 55, a polishing block spring 54 is connected between the polishing block fixing rod 55 and the polishing block 53, the upper and lower side walls of the inner part of the right end of the edging sander 18 are symmetrically and fixedly provided with edging blades 56.

As shown in fig. 2, clamping device is in including sliding the setting slider 39 in the casing 10 spout, it is equipped with big sprocket shaft 48 to rotate on the slider 39, big sprocket shaft 48 bottom mounting is equipped with big sprocket 40, the fixed panel fixed plate 20 that is equipped with in big sprocket shaft 48 upper end, the fixed sucking disc 21 that is equipped with of panel fixed plate 20 inside symmetry, the fixed trachea 38 that is equipped with in sucking disc 21 bottom, the inside negative pressure pump 36 that is equipped with of casing 10 downside, the fixed trachea fixed block 37 that is equipped with of negative pressure pump 36 upside, trachea fixed block 37 with trachea 38 fixed connection.

As shown in fig. 4 and 5, the middle of the large sprocket shaft 48 is provided with a square chuck 49 in a sliding manner, the end of the square chuck 49 is fixedly provided with a beam slider 50, the upper side of the beam slider 50 is fixedly provided with a clamping fixing plate 51, the upper end of the clamping fixing plate 51 is symmetrically and fixedly provided with lower hinge heads 62, the clamping fixing plate 51 is fixedly provided with a support chute rod 27, the support chute rod 27 is provided with a pneumatic rod slider 63 in a sliding manner, the pneumatic rod slider 63 is fixedly provided with a pneumatic telescopic rod 43, the left end and the right end of the pneumatic telescopic rod 43 are symmetrically and fixedly provided with hinge fixing blocks 45, the support chute rod 27 is provided with a pressure strip 41 in a sliding manner, the lower bottom surface of the pressure strip 41 is symmetrically and fixedly provided with upper hinge heads 52, the upper hinge heads 52 are hinged with hinge rods 42 between the hinge fixing blocks 45, the lower hinge heads 62 are hinged with hinge rods 42 between the hinge fixing blocks 45, the pressing plate 41 is fixed with pressing discs 44 on the bottom surface symmetrically.

As shown in fig. 3, the chain transmission device includes a chain wheel shaft 34 fixedly disposed on the housing 10, a small chain wheel 31 is fixedly disposed on the chain wheel shaft 34, the small chain wheels 31 in two transverse directions form a group, a chain 32 is connected between each small chain wheel 31, the chain 32 is engaged with the large chain wheel 40, a stroke sensor 35 is fixedly disposed in a chute of the housing 10, and the stroke sensor 35 is used for controlling the rotation direction of the two groups of small chain wheels 31.

When the need is carried out banding to panel and is handled, place panel on panel fixed plate 20, side positioner is worked as and is carried out the side location to panel, negative pressure pump 36 work simultaneously, take out the inside air of the sucking disc 21 of symmetric distribution on panel fixed plate 20, make and form the negative pressure chamber between sucking disc 21 and the panel, pneumatic telescopic rod 43 work shrink articulated fixed block 45 makes pressure strip 41 move down in the spout that supports spout pole 27 next, make pressure strip 44 bottom surface and panel contact and then compress tightly panel, side positioner can effectual to the panel location, make the banding strip can the perfect laminating panel side, clamping device adopts sucking disc and pneumatic fixture cooperation, make panel be difficult for removing when removing.

When needing panel to advance, the motor counter-direction rotation of two sets of little sprockets of simultaneous start control 31, make big sprocket 40 remove left under the drive of two sets of chains 32, drive the slider 39 that is fixed in big sprocket shaft 48 bottom simultaneously and slide left in the spout of casing 10, edge banding 29 passes through the guide block 19 direction simultaneously, make edge banding 29 laminate panel, heat the extrusion through heating block 22, make edge banding 29 and panel bonding, edging blade 56 and the piece of polishing 53 that sets up in rethread edging sander 18, carry out edging and the processing of polishing to respectively the edge banding respectively, the unnecessary edge banding can be cut to the edging device, and can simply and effectual automatic panel corner of polishing after the removal.

Trigger the work of cutter 30 when panel end passes through sensor 28 and make cutter 30 cut off banding strip 29, when slider 39 extrudees stroke sensor 35 in casing 10 spout, the motor syntropy of control two sets of little sprocket 31 rotates, thereby make big sprocket 40 rotate and drive the panel of fixing on panel fixed plate 20 and rotate, rotate to not banding department, carry out the banding of the same step and handle until finishing, realize clamping device's horizontal migration and rotation through the positive and negative rotation of control sprocket motor, make when banding to the other both sides limit of panel, need not dismantle the clamp again.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. An edge sealing and glue removing system for a cabinet door plate comprises a shell (10) and is characterized in that, the rear end of the shell (10) is fixedly provided with shell supporting legs (33), the shell (10) is fixedly provided with a long supporting base (47) and a short supporting base (46), a side edge positioning device is arranged on the supporting base in a sliding way and is used for positioning the side edge of the plate, the upper end surface of the side edge positioning device is fixedly provided with a heightening plate (61), the heightening plate (61) is provided with a sealing edge device, the edge sealing device is used for sealing edges of the plates, the shell (10) is provided with a clamping device in a sliding and rotating way, the clamping device is used for clamping and fixing a plate to prevent the plate from moving when an edge is sealed, and a chain transmission device is fixedly arranged on the upper end face of the shell (10) and used for controlling the rotation and the sliding of the clamping device; the side positioning device comprises a long supporting base (47) fixedly arranged on the left side surface and the right side surface of the upper end of the shell (10), a long rack (11) is fixedly arranged on the long supporting base (47), short supporting bases (46) which are symmetrical front and back are fixedly arranged on the left side of the middle part of the shell (10), a short rack (57) is fixedly arranged on the short supporting base (46), a short beam (58) is arranged between the long supporting base (47) and the short supporting base (46) in a sliding manner, a short beam motor (12) is fixedly arranged at two ends of each short beam (58), a short beam motor shaft (14) is arranged on the output end of the short beam motor (12), a short beam motor gear (13) is fixedly arranged on the short beam motor shaft (14), the short beam motor gear (13) is meshed with the long rack (11), and the short beam motor gear (13) is meshed with the short rack (57); a long beam (59) is slidably arranged between each short rack (57) and the long rack (11), a long beam motor (26) is fixedly arranged at each of two ends of each long beam (59), a long beam motor shaft (25) is fixedly arranged at the output end of each long beam motor (26), a long beam motor gear (24) is fixedly arranged on the long beam motor shaft (25), the long beam motor gear (24) is meshed with the long rack (11), the long beam motor gear (24) is meshed with the short racks (57), tensioning wheel fixing plates (16) are uniformly and fixedly arranged on the inner sides of the short beams (58) and the long beams (59), tensioning wheels (17) are slidably arranged in the tensioning wheel fixing plates (16), and tensioning wheel springs (15) are connected between the tensioning wheel fixing plates (16) and the tensioning wheels (17); the edge sealing device comprises an edge sealing plate (61) fixedly arranged on the long beam (59) and the short beam (58), an edge sealing strip fixing column (60) is fixedly arranged at the right end of the edge sealing plate (61), an edge sealing strip (29) is arranged on the edge sealing strip fixing column (60) in a rotating manner, a heating block (22) is fixedly arranged on the left side of the edge sealing strip (29), a sensor (28) is fixedly arranged on the left side of the heating block (22), a disconnector (30) is fixedly arranged on the left side of the sensor (28), a trimming sander (18) is fixedly arranged on the left side of the disconnector (30), sanding block fixing rods (55) are fixedly arranged on the upper side wall and the lower side wall inside the left end of the trimming sander (18), a sanding block (53) is arranged on the sanding block fixing rods (55) in a sliding manner, and a sanding block spring (54) is connected between the sanding block (53), and the upper side wall and the lower side wall inside the right end of the edging sander (18) are symmetrically and fixedly provided with edging blades (56).

2. The edge banding and glue removing system for cabinet door panels as claimed in claim 1, wherein: clamping device sets up including sliding slider (39) in casing (10) spout, it is equipped with big sprocket shaft (48) to rotate on slider (39), big sprocket shaft (48) bottom mounting is equipped with big sprocket (40), big sprocket shaft (48) upper end is fixed and is equipped with panel fixed plate (20), panel fixed plate (20) inside symmetry is fixed and is equipped with sucking disc (21), sucking disc (21) bottom is fixed and is equipped with trachea (38), inside negative pressure pump (36) that are equipped with of casing (10) downside, negative pressure pump (36) upside is fixed and is equipped with trachea fixed block (37), trachea fixed block (37) with trachea (38) fixed connection.

3. The edge banding and glue removing system for cabinet door panels as claimed in claim 2, wherein: big sprocket shaft (48) middle part slides and is equipped with square dop (49), square dop (49) end is fixed and is equipped with roof beam slider (50), roof beam slider (50) upside is fixed and is equipped with clamping plate (51), clamping plate (51) upper end bilateral symmetry is fixed and is equipped with down hinge (62), fixed being equipped with on clamping plate (51) supports chute pole (27), it is equipped with pneumatic rod slider (63) to slide on supporting chute pole (27), fixed being equipped with pneumatic telescopic rod (43) on pneumatic rod slider (63), fixed symmetry is equipped with articulated fixed block (45) on both ends about pneumatic telescopic rod (43), it is equipped with pressure strip (41) to slide on supporting chute pole (27), bottom surface bilateral symmetry is fixed and is equipped with hinge (52) under pressure strip (41), go up hinge (52) with articulated rod (42) is equipped with in the articulated between articulated fixed block (45), articulated rod (42) is articulated between lower articulated head (62) and articulated fixed block (45), the fixed symmetry in pressure strip (41) bottom surface is equipped with compresses tightly dish (44).

4. The edge banding and glue removing system for cabinet door panels as claimed in claim 3, wherein: chain drive is including fixed locating sprocket shaft (34) on casing (10), fixed being equipped with little sprocket (31) on sprocket shaft (34), two horizontal little sprocket (31) are a set of, every group be connected with chain (32) between little sprocket (31), chain (32) with big sprocket (40) meshing, casing (10) spout internal fixation is equipped with stroke sensor (35), stroke sensor (35) are used for controlling the direction of rotation of two sets of little sprocket (31).