CN214400942U - Elastic band looping device - Google Patents

Abstract

The utility model relates to an elastic band looping device, which comprises a frame, and an elastic band conveying mechanism, a pulling mechanism, a looping mechanism and a sewing mechanism which are arranged on the frame, wherein the pulling mechanism and the elastic band conveying mechanism are arranged in the front and back, the looping mechanism and the sewing mechanism are arranged in the left and right direction, the elastic band conveying mechanism and the pulling mechanism are distributed on two sides of an upper feeding path between the looping mechanism and the sewing mechanism, and the lower feeding path and the upper feeding path are staggered up and down between the discharge end of the elastic band conveying mechanism and a clamping device of the pulling mechanism; when the looping mechanism moves towards the sewing mechanism, the looping mechanism does not block the lower feeding path; the utility model discloses the lower pay-off route of process is cut to the segmentation and the looping in-process pay-off route mutual noninterference is made up, and when making up the looping, feeding agencies has accomplished the segmentation promptly and has cut the work of getting, has promoted the work efficiency of looping device greatly.

Description

Elastic band looping device

Technical Field

The utility model relates to a sewing machine technique specifically is an elastic band lopping device.

Background

In the production process, when the existing looping device works, the next looping work is started after the last looping work is completely finished, and in the looping sewing process, the segmented shearing mechanism is in a waiting process, so that the overall efficiency is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elastic band area lopping device, the utility model discloses the lower pay-off route of segmentation shearing process with make up the lopping in-process pay-off route mutual noninterference, when making up the lopping, the work of getting is cut to the segmentation has been accomplished promptly to the feeding agencies, the utility model discloses the work efficiency of lopping device has been promoted greatly, simultaneously the utility model discloses the structure to shearing mechanism and pneumatic tong has been improved to hoist mechanism's reliability and stability.

The following technical scheme is adopted for achieving the purpose:

the utility model provides an elastic band lopping device, includes frame, its characterized in that: the elastic band conveying mechanism, the material pulling mechanism, the looping mechanism and the sewing mechanism are arranged on the rack, the material pulling mechanism and the elastic band conveying mechanism are arranged in front and at back, a clamping device of the material pulling mechanism reciprocates between the material pulling mechanism and the elastic band conveying mechanism, the looping mechanism and the sewing mechanism are arranged left and right, the elastic band conveying mechanism and the material pulling mechanism are distributed on two sides of an upper feeding path between the looping mechanism and the sewing mechanism, and a lower feeding path and the upper feeding path between a discharging end of the elastic band conveying mechanism and the clamping device of the material pulling mechanism are vertically staggered; when the looping mechanism moves towards one side of the sewing mechanism, the looping mechanism does not block the lower feeding path.

The cutting device is arranged at the discharge end of the elastic band conveying mechanism and comprises a connecting seat and a driving device, a belt conveying channel is arranged on the connecting seat, a fixed cutter is fixed at the discharge end at the front end of the belt conveying channel, a rotating shaft is pivoted at the outer side of the belt conveying channel, the axial direction of the rotating shaft is vertical to the direction of the fixed cutter, and a moving cutter connecting seat which is coaxial with the rotating shaft is arranged at the front end of the rotating shaft; the movable cutter connecting seat is provided with a radial mounting groove and an axial positioning hole, the axial positioning hole is communicated with the radial mounting groove, the movable cutter is further arranged at the discharge end, the cutter handle of the movable cutter is contained in the radial mounting groove, the axial positioning hole is internally provided with a fixed ejector rod, the fixed ejector rod axially pushes against the surface of the cutter handle and fixes the movable cutter in the radial mounting groove, and the driving device drives the rotating shaft to rotate so as to drive the movable cutter to rotate and match with the fixed cutter to complete shearing.

The material pulling mechanism comprises a front and rear translation mechanism and a clamping device, the front and rear translation mechanism is fixed on the rack, and the clamping device is fixed on a sliding block of the front and rear translation mechanism; the clamping device comprises a clamping connecting seat, a fixed clamping plate, a movable clamping plate and an air cylinder, wherein the cylinder bodies of the fixed clamping plate and the air cylinder are fixed on the clamping connecting seat, a linear guide rail is further arranged on the clamping connecting seat, the direction of the linear guide rail is parallel to the axial direction of an air cylinder driving rod, a track of the linear guide rail is fixed on the clamping connecting seat, one end of the movable clamping plate is fixed with the driving rod of the air cylinder, and the movable clamping plate is fixedly connected with a sliding block of the linear guide rail.

The looping mechanism comprises a left and right translation moving device, a looping connecting seat and a looping device, the left and right translation moving device is arranged on the rack, the left and right translation moving device drives the looping connecting seat to move left and right, and the looping device is connected with the looping connecting seat.

The ring forming device comprises a vertical plate, the lower part of the vertical plate is fixedly connected with a ring forming connecting seat, a bedplate is arranged on one side of the vertical plate corresponding to the sewing mechanism, the bedplate is equal in height to an upper feeding path, two rotating motors are arranged on the vertical plate, the two rotating motors are symmetrically distributed on two sides of the bedplate, a rotating shaft of each rotating motor is connected with a clamping device, a clamping plate of the clamping device is arranged in a biased mode relative to the rotating shaft, the rotating shaft drives the clamping plate to rotate to the lowest position and equal in height to the lower feeding path, and the rotating shaft drives the clamping plate to rotate to the highest position and equal in height to the upper feeding path; and a pushing device is arranged above the bedplate, and when the looping device enables the bedplate to be in butt joint with the workbench of the sewing mechanism along the upper feeding path, the pushing device pushes the looped rubber band to the workbench of the sewing mechanism in a segmented manner.

The utility model discloses rubber band area lopping device relatively current, when sewing up the mechanism and carrying out both ends sewing up is sent to in the rubber band segmentation after the lopping device will lopping, the lopping device can not block down the pay-off route, consequently in the lopping device pay-off, draws material mechanism and the defeated material mechanism in rubber band area to accomplish getting of rubber band area and segmentation work, treats that the lopping device resets the back can press from both sides at once and get, just so can reduce latency in the middle of, improve device's work efficiency.

Drawings

Fig. 1 is a schematic structural diagram (one) of the present invention;

fig. 2 is a schematic structural diagram (ii) of the present invention;

fig. 3 is a schematic structural diagram (three) of the present invention;

FIG. 4 is a partial structural diagram (I) of the present invention;

FIG. 5 is a schematic view of a part of the structure of the present invention;

FIG. 6 is a schematic structural view of the looping mechanism of the present invention;

fig. 7 is a schematic structural view of the shearing device of the present invention;

FIG. 8 is a schematic view of an exploded structure of the movable blade and the movable blade connecting seat of the shearing device of the present invention;

fig. 9 is a schematic structural view of the other side of the shearing device of the present invention;

fig. 10 is a top view of the shearing apparatus of the present invention;

FIG. 11 is a cross-sectional view taken along line A-A of FIG. 10 in accordance with the present invention;

fig. 12 is a schematic structural diagram (one) of the clamping device of the present invention;

fig. 13 is a schematic structural diagram (ii) of the clamping device of the present invention.

Detailed Description

As shown in fig. 1-13, an elastic band looping device comprises a frame 1, and an elastic band feeding mechanism 2, a pulling mechanism 3, a looping mechanism 4 and a sewing mechanism 5 are arranged on the frame 1, the pulling mechanism 3 and the elastic band feeding mechanism 2 are arranged in front and at back, a clamping device 6 of the pulling mechanism 3 reciprocates in a lower feeding path between the pulling mechanism 3 and the elastic band feeding mechanism 2, the looping mechanism 4 and the sewing mechanism 5 are arranged in left and right, the elastic band feeding mechanism 2 and the pulling mechanism 3 are distributed on two sides of an upper feeding path between the looping mechanism 4 and the sewing mechanism 5, and the lower feeding path and the upper feeding path are vertically staggered between a discharge end of the elastic band feeding mechanism 2 and the clamping device 6 of the pulling mechanism 3; when the clamping device 6 of the material pulling mechanism 3 moves to one side of the elastic band conveying mechanism 2, the elastic band with fixed length is pulled out from the elastic band conveying mechanism 2 and cut into sections, the looping mechanism 4 transfers the elastic band to the looping mechanism 4 in sections and enables the elastic band to be looped between the elastic band conveying mechanism 2 and the material pulling mechanism 3, the looping mechanism 4 sends the looped elastic band to the sewing mechanism 5 in sections to sew the two ends of the rubber band in sections, and when the looping mechanism 4 moves to one side of the sewing mechanism 5, the looping mechanism 4 does not block a lower feeding path.

The clamping device 6 comprises a clamping connecting seat 61, a fixed clamping plate 62, a movable clamping plate 63 and an air cylinder 64, wherein cylinder bodies of the fixed clamping plate 62 and the air cylinder 64 are fixed on the clamping connecting seat 61, a linear guide rail 65 is further arranged on the clamping connecting seat 61, the direction of the linear guide rail 65 is parallel to the axial direction of an air cylinder driving rod 66, a track of the linear guide rail 65 is fixed on the clamping connecting seat 61, one end of the movable clamping plate 63 is fixed with the driving rod of the air cylinder 64, and the middle of the movable clamping plate 63 is fixedly connected with a sliding block of the linear guide rail 65; the fixed splint 62 comprises a first fixing portion 621 and a first clamping portion 622, the movable splints 63 each comprise a second fixing portion 631 and a second clamping portion 632, and the first clamping portion 622 and the second clamping portion 632 are arranged in parallel; the axial direction of the cylinder driving rod is perpendicular to the clamping surface of the second clamping portion 632; the slider and the cylinder driving rod 66 are simultaneously connected to the second fixing portion 631 of the movable clamp plate 63.

A shearing device 7 is arranged at the discharge end of the elastic band conveying mechanism 2, the shearing device 7 comprises a connecting seat 71 and a driving device 72, a belt conveying channel 73 is arranged on the connecting seat 71, a fixed cutter 74 is fixed at the discharge end at the front end of the belt conveying channel 73, a rotating shaft 75 is pivoted at the outer side of the belt conveying channel 73, and a movable cutter connecting seat 76 which is coaxial with the rotating shaft 75 is arranged at the front end of the rotating shaft 75; the movable knife connecting seat 76 is provided with a radial mounting groove 761 and an axial positioning hole 762, the axial positioning hole 762 is communicated with the radial mounting groove 761, the movable knife 77 is further arranged at the discharge port, the knife handle 771 of the movable knife 77 is accommodated in the radial mounting groove 761, a fixed ejector rod 763 is arranged in the axial positioning hole 762, the fixed ejector rod 763 axially pushes against the surface of the knife handle 771 and fixes the movable knife 77 in the radial mounting groove 761, and the driving device 72 drives the rotating shaft 75 to rotate so as to drive the movable knife 77 to rotate to be matched with the fixed knife 74 to complete shearing.

The movable blade connecting seat 76 comprises a seat body 764 and a fixed cover 765, wherein the seat body 764 is fixedly connected with the rotating shaft 75, a radial mounting groove 761 is formed in the front side surface of the seat body 764, and the fixed cover 765 is fixed on the front side surface of the seat body 764; the axial positioning hole 762 penetrates through the rotating shaft 75 along the axial center of the rotating shaft 75, the fixing push rod 763 is accommodated in the axial positioning hole 762, a locking nut 766 is arranged at the rear end of the axial positioning hole 762, and the axial position of the fixing push rod 763 is adjusted through the locking nut 766. The knife handle 771 of the movable knife 77 is further provided with a leaning part 772, the inner side surfaces of the knife handle 771 and the leaning part 772 and the inner side surface of the movable knife 77 are positioned on the same plane, the inner side surface of the leaning part 772 leans against the outer side surface of the fixed knife 74, the knife edge of the movable knife 77 is positioned on the lower edge of the inner side surface, and the knife edge of the fixed knife 74 is positioned on the upper edge of the outer side surface.

The driving device 72 is an air cylinder device 721, a driving rod 722 of the air cylinder device 721 is connected with the rotating shaft 75 through a rocker arm 723, one end of the rocker arm 723 is fixedly connected with the rotating shaft 75, and the other end of the rocker arm 722 is movably connected with the driving rod 722; the lower part of the rocker arm 723 is provided with a guide groove 724 along the length direction of the rocker arm, and a roller 725 on the driving rod 722 is accommodated in the guide groove 724; the rotating shaft 75 is further sleeved with a leaning spring 727, one end of the leaning spring 727 is propped against the rotating shaft fixing sleeve 726, the other end of the leaning spring 727 is propped against the rocker arm 723, and the leaning spring 727 exerts axial acting force on the rotating shaft 75, so that the inner side surface of the leaning part 772 is always attached to the outer side surface of the fixed knife 74.

The material pulling mechanism 3 comprises a front and rear translation mechanism 31 and a clamping device 6, the front and rear translation mechanism 31 is fixed on the frame 1, and the clamping device 6 is fixed on a sliding block of the front and rear translation mechanism 31.

The looping mechanism 4 comprises a left-right translation moving device 41, a looping connecting seat 42 and a looping device, wherein the left-right translation moving device 41 is arranged on the rack, the left-right translation moving device 41 drives the looping connecting seat 42 to move left and right, and the looping device is connected with the looping connecting seat 42; the looping device comprises a vertical plate 43, the lower part of the vertical plate 43 is fixedly connected with a looping connecting seat, a bedplate 44 is arranged on one side of the vertical plate 43 corresponding to the sewing mechanism 5, the bedplate 44 is equal in height to an upper feeding path, two rotating motors 45 are arranged on the vertical plate 43, the two rotating motors 45 are symmetrically distributed on two sides of the bedplate 44, a clamping device 6 is connected to a rotating shaft of each rotating motor 45, a clamping plate of the clamping device 6 is arranged in a biased mode relative to the rotating shaft of the rotating motor 45, the rotating shaft drives the clamping plate to rotate to the lowest position and equal in height to the lower feeding path, and the rotating shaft drives the clamping plate to rotate to the highest position and equal in height to the upper feeding path; a pushing device 46 is arranged above the bedplate 44, and when the looping device enables the bedplate 44 to be in butt joint with the workbench of the sewing mechanism 5 along the upper feeding path, the pushing device 46 pushes the looped rubber band section to the workbench of the sewing mechanism 5.

The utility model discloses the working process is such:

the whole roll of the rubber band belt sends a fixed-length broken rubber band belt to a discharge port through a belt conveying channel 73 of the rubber band belt conveying mechanism 2;

the front and back translation mechanism 31 of the material pulling mechanism 3 pushes the clamping device 6 to the discharge port of the elastic band conveying mechanism 2, the clamping device 6 clamps the elastic band to reset, the shearing device 7 shears the elastic band into sections with fixed length after the clamping device 6 resets, and the stroke of the front and back translation mechanism 31 controls the length of the sections of the elastic band;

then the two clamping devices 6 on the looping mechanism 4 clamp the parts close to the two ends of the rubber band segment, the rotating motor 45 drives the clamping devices 6 to rotate from the position of the lower feeding path to the position of the upper feeding path, the rubber band segment is looped by turning over the clamping devices 6 upwards, and the two ends of the rubber band segment are attached to the bedplate 44;

then the left-right translation moving device 41 drives the vertical plate 43 to approach the sewing mechanism 5,

when the bedplate 44 is in butt joint with the workbench of the sewing mechanism 5, the clamping device 6 is released, the pushing device 46 pushes the looped elastic band section to the workbench of the sewing mechanism 5 for sewing, and the looping work is finished after the segmented sewing of the elastic band is finished.

The utility model discloses when the looping device sends the rubber band after the looping to the sewing mechanism in sections and sews up both ends, the looping device can not block the lower feeding route, therefore when the looping device feeds, the material pulling mechanism and the rubber band conveying mechanism finish the rubber band taking and the segmenting work, can clamp immediately after the looping device resets, in this way, can reduce the waiting time in the middle, improve the work efficiency of the device;

in addition, the axial direction of the rotating shaft of the shearing device 7 is vertical to the fixed knife, the direction of the radial mounting groove is naturally parallel to that of the fixed knife, the movable knife is inserted in the radial mounting groove, and the movable knife is fixed along the axial direction of the rotating shaft through the fixed ejector rod in the axial positioning hole when being fixed, so that the movable knife is not fixed to rotate in the fixing mode, the gap between the movable knife and the edge of the fixed knife can be ensured to be always consistent, and the fracture of the rubber band after shearing can be very neat; simultaneously the utility model discloses it supports the spring to still overlap at the rotation axis to be equipped with to support to set up the portion of supporting on moving the sword, under the effect that supports and support the spring, support the portion of supporting to support the medial surface all the time with the laminating of the lateral surface of stationary knife, ensure to cut the effect, support through the compression and support and can conveniently make movable sword and stationary knife separation, conveniently move the dismantlement and the installation of sword, the maintenance and the change in the later stage of being convenient for, the edge of a knife that moves the sword after the change keeps the laminating state with the edge of a knife of stationary knife all the time, thereby the stability and the reliability of product have been promoted.

The utility model discloses still improve the 6 structures of clamping device, through linear guide and the two guide structure of cylinder, movable clamp plate and movable clamp plate like this when centre gripping rubber band area, the effort major part along movable clamp plate direction conduction is accepted by linear guide, the cylinder actuating lever only receives very little side direction effort, wearing and tearing between can greatly reduced cylinder actuating lever and the pole cover like this, and linear guide adopts the ball structure, higher intensity and fine wearability have, thereby promoted the stability and the durability that promote pneumatic tong greatly.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front", "rear", and the like are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims (10)

1. The utility model provides an elastic band lopping device, includes frame (1), its characterized in that: the elastic band conveying mechanism (2), the pulling mechanism (3), the looping mechanism (4) and the sewing mechanism (5) are arranged on the rack (1), the pulling mechanism (3) and the elastic band conveying mechanism (2) are arranged in front and back, a clamping device (6) of the pulling mechanism (3) reciprocates in a lower feeding path between the pulling mechanism (3) and the elastic band conveying mechanism (2), the looping mechanism (4) and the sewing mechanism (5) are arranged in left and right, the elastic band conveying mechanism (2) and the pulling mechanism (3) are distributed on two sides of an upper feeding path between the looping mechanism (4) and the sewing mechanism (5), and the lower feeding path and the upper feeding path are staggered up and down between a discharge end of the elastic band conveying mechanism (2) and the clamping device (6) of the pulling mechanism (3); when the looping mechanism (4) moves towards one side of the sewing mechanism (5), the looping mechanism (4) does not block the lower feeding path.

2. An elastic band looping device as claimed in claim 1, characterized in that: the device is characterized in that a shearing device (7) is arranged at the discharge end of the elastic band conveying mechanism (2), the shearing device (7) comprises a connecting seat (71) and a driving device (72), a belt conveying channel (73) is arranged on the connecting seat (71), a discharge port at the front end of the belt conveying channel (73) is fixed on a fixed cutter (74), a rotating shaft (75) is pivoted at the outer side of the belt conveying channel (73), and a movable cutter connecting seat (76) which is coaxial with the rotating shaft (75) is arranged at the front end of the rotating shaft (75); move and be provided with radial mounting groove (761) and axial locating hole (762) on sword connecting seat (76), axial locating hole (762) communicate with each other with radial mounting groove (761), still be equipped with in discharge end department and move sword (77), handle of a knife (771) holding of moving sword (77) is in radial mounting groove (761), be provided with fixed ejector pin (763) in axial locating hole (762), fixed ejector pin (763) push up handle of a knife (771) surface and will move sword (77) and fix in radial mounting groove (761) along the axial, drive arrangement (72) drive rotation axis (75) rotate and then drive move sword (77) and rotate and accomplish the shearing with stationary knife (74) cooperation.

3. An elastic band looping device as claimed in claim 2, wherein: the movable blade connecting seat (76) comprises a seat body (764) and a fixed cover (765), the seat body (764) is fixedly connected with the rotating shaft (75), a radial mounting groove (761) is formed in the front side face of the seat body (764), and the fixed cover (765) is fixed to the front side face of the seat body (764); the axial positioning hole (762) penetrates through the rotating shaft (75) along the shaft center of the rotating shaft (75), the fixed ejector rod (763) is accommodated in the axial positioning hole (762), a locking nut (766) is arranged at the rear port of the axial positioning hole (762), and the axial position of the fixed ejector rod (763) is adjusted through the locking nut (766).

4. An elastic band looping device as claimed in claim 2, wherein: the knife handle (771) of the movable knife (77) is further provided with a leaning part (772), the inner side surfaces of the knife handle (771) and the leaning part (772) and the inner side surface of the movable knife (77) are located on the same plane, the inner side surface of the leaning part (772) leans against the outer side surface of the fixed knife (74), the knife edge of the movable knife (77) is located on the lower edge of the inner side surface, and the knife edge of the fixed knife (74) is located on the upper edge of the outer side surface.

5. An elastic band looping device according to claim 4, characterized in that the driving device (72) is a cylinder device (721), a driving rod (722) of the cylinder device (721) is connected with the rotating shaft (75) through a rocker arm (723), one end of the rocker arm (723) is fixedly connected with the rotating shaft (75), and the other end is movably connected with the driving rod (722); the lower part of the rocker (723) is provided with a guide groove (724) along the length direction of the rocker, and a roller (725) is arranged on the driving rod (722) and is accommodated in the guide groove (724); the rotating shaft (75) is further sleeved with a leaning spring (727), one end of the leaning spring (727) is propped against the rotating shaft fixing sleeve (726), the other end of the leaning spring (727) is propped against the rocker arm (723), and the leaning spring (727) exerts axial acting force on the rotating shaft (75) so that the inner side of the leaning portion (772) is always attached to the outer side of the fixed knife (74).

6. An elastic band looping device as claimed in claim 1, characterized in that: the material pulling mechanism (3) comprises a front and rear translation mechanism (31) and a clamping device (6), the front and rear translation mechanism (31) is fixed on the rack (1), and the clamping device (6) is fixed on a sliding block of the front and rear translation mechanism (31).

7. An elastic band looping device as claimed in claim 1, characterized in that: clamping device (6) including centre gripping connecting seat (61), solid fixed splint (62), activity splint (63) and cylinder (64), the cylinder body of solid fixed splint (62) and cylinder (64) fix on centre gripping connecting seat (61) on still be provided with linear guide (65), the direction of linear guide (65) and the axial direction parallel of cylinder actuating lever (66), the track of linear guide (65) is fixed on centre gripping connecting seat (61), wherein one end of activity splint (63) is fixed with the actuating lever of cylinder (64), activity splint (63) in the middle of link firmly with the slider of linear guide (65).

8. An elastic band looping device according to claim 7, characterized in that: the fixed splint (62) comprises a first fixed part (621) and a first clamping part (622), the movable splints (63) comprise a second fixed part (631) and a second clamping part (632), and the first clamping part (622) and the second clamping part (632) are arranged in parallel; the axial direction of the cylinder driving rod is vertical to the clamping surface of the second clamping part (632); the slide block and the cylinder driving rod (66) are simultaneously connected with the second fixing part (631) of the movable clamping plate (63).

9. An elastic band looping device as claimed in claim 1, characterized in that: the looping mechanism (4) comprises a left-right translation moving device (41), a looping connecting seat (42) and a looping device, wherein the left-right translation moving device (41) is arranged on the rack, the left-right translation moving device (41) drives the looping connecting seat (42) to move left and right, and the looping device is connected with the looping connecting seat (42).

10. An elastic band looping device as claimed in claim 9, wherein: the looping device comprises a vertical plate (43), the lower part of the vertical plate (43) is fixedly connected with a looping connecting seat, a bedplate (44) is arranged on one side of the vertical plate (43) corresponding to the sewing mechanism (5), the bedplate (44) is equal in height to an upper feeding path, two rotating motors (45) are arranged on the vertical plate (43), the two rotating motors (45) are symmetrically distributed on two sides of the bedplate (44), a clamping device (6) is connected to a rotating shaft of each rotating motor (45), a clamping plate of the clamping device (6) is arranged in a biased mode relative to a rotating shaft of each rotating motor (45), the rotating shaft drives the clamping plate to rotate to the lowest position and equal in height to the lower feeding path, and the rotating shaft drives the clamping plate to rotate to the highest position and equal in height to the upper feeding path; a pushing device (46) is arranged above the bedplate (44), and when the looping device enables the bedplate (44) to be in butt joint with a workbench of the sewing mechanism (5) along an upper feeding path, the pushing device (46) pushes looped rubber bands to the workbench of the sewing mechanism (5) in a segmented mode.

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