CN211248734U

CN211248734U - PLC intelligent control type automatic series welding machine

Info

Publication number: CN211248734U
Application number: CN201922170200.2U
Authority: CN
Inventors: 刘亮; 孙金龙; 蔡贤峰
Original assignee: Changzhou Yunhui Photovoltaic Technology Co ltd
Current assignee: Changzhou Yunhui Photovoltaic Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-14
Anticipated expiration: 2029-12-06

Abstract

The utility model discloses a PLC intelligent control type automatic stringer relates to the relevant field of automatic stringer, adsorbs and places the problem for solving the unable comparatively convenient battery piece among the prior art. One side of equipment shell lower extreme is provided with the support column, one side of equipment shell upper end is provided with the connecting rod, the lower extreme of connecting rod is provided with PLC intelligent control ware, PLC intelligent control ware's rear end is provided with glass protection window, glass protection window's rear end is provided with the pivot fixed plate, be provided with first pivot on the pivot fixed plate, the rear end of pivot fixed plate is provided with the runner, be provided with first drive belt on the runner, be provided with the panel standing groove on the first drive belt, be provided with second drive belt in the first pivot, be provided with first initiative pivot in the second drive belt, be provided with the fixed plate in the first initiative pivot.

Description

PLC intelligent control type automatic series welding machine

Technical Field

The utility model relates to an automatic stringer field of being correlated with specifically is a PLC intelligent control type automatic stringer.

Background

Along with the progress of people's society, people's industrial level is higher and higher, the stringer carries with the battery piece that mechanical drive mechanism goes on, utilize the high-temperature gas of hot-blast main to weld the battery piece on the heating bottom plate, and current automatic stringer is when welding, when snatching the battery piece easily, cause the damage to the battery piece, when automatic stringer carries out the automation mechanized operation simultaneously, probably because of the flexible length of arm differs, and cause the battery piece to concatenate the distance and differ, thereby cause the useless piece of battery piece.

The existing automatic series welding machines can not adsorb and place the battery pieces conveniently; therefore, the market urgently needs to develop a PLC intelligent control type automatic stringer to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic stringer of PLC intelligent control type to solve the unable comparatively convenient problem of adsorbing and placing the battery piece that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a PLC intelligent control type automatic stringer comprises an equipment shell, wherein a support column is arranged on one side of the lower end of the equipment shell, a connecting rod is arranged on one side of the upper end of the equipment shell, a PLC intelligent controller is arranged at the lower end of the connecting rod, a glass protection window is arranged at the rear end of the PLC intelligent controller, a rotating shaft fixing plate is arranged at the rear end of the glass protection window, a first rotating shaft is arranged on the rotating shaft fixing plate, a rotating wheel is arranged at the rear end of the rotating shaft fixing plate, a first transmission belt is arranged on the rotating wheel, a battery plate placing groove is arranged on the first transmission belt, a second transmission belt is arranged on the first rotating shaft, a first driving rotating shaft is arranged in the second transmission belt, a fixing plate is arranged on the first driving rotating shaft, a third transmission belt is arranged at the rear end of the fixing plate, and a first motor is arranged at the rear end of, a first driven rotating shaft is arranged on the third driving belt, a motor mounting box is arranged on one side of the first driven rotating shaft, a second motor is arranged inside the motor mounting box, a hydraulic telescopic rod is arranged at the upper end of the second motor, a first connecting plate is arranged on the hydraulic telescopic rod, a third motor is arranged at the upper end of the first connecting plate, a second rotating shaft is arranged at the lower end of the third motor, a first air exhaust plate is arranged at the lower end of the second rotating shaft, an ultra-soft silica gel sucker is arranged at the lower end of the first air exhaust plate, a small air extractor is arranged on one side of the first air exhaust plate, a third rotating shaft is arranged at the front end of the hydraulic telescopic rod, a fourth driving belt is arranged at the upper end of the third rotating shaft, a supporting plate is arranged at the front end of the fourth driving belt, an infrared welding machine is arranged on the supporting plate, and a fifth driving belt is arranged on the third rotating, a second driving rotating shaft is arranged in the fifth driving belt, a fourth motor is arranged at the front end of the second driving rotating shaft, a second driven rotating shaft is arranged on one side of the fourth motor, a second connecting plate is arranged on one side of the rear end of the fourth driving belt, an electromagnetic suction piece is arranged at the upper end of the second connecting plate, a sliding groove is arranged at the front end of the electromagnetic suction piece, a supporting groove is formed in the sliding groove, a sliding block is arranged in the supporting groove, an electromagnetic piece is arranged at the rear end of the sliding block, a fourth rotating shaft is arranged in the sliding block, a fifth motor is arranged at the upper end of the fourth rotating shaft, a second air exhaust plate is arranged at the lower end of the second connecting plate, a sixth driving belt is arranged at the lower end of one side of the second air exhaust plate, a battery plate clamping strip is arranged on the sixth driving belt, and a fifth rotating shaft is arranged at the front, a seventh transmission belt is arranged on the fifth rotating shaft, a third driving rotating shaft is arranged on the seventh transmission belt, a sixth motor is arranged at the rear end of the third driving rotating shaft, and a third driven rotating shaft is arranged on one side of the sixth motor.

Preferably, hydraulic telescoping rod is provided with two, all be provided with hydraulic telescoping rod on the second connecting plate, hydraulic telescoping rod passes through argon arc welding with the second connecting plate and is connected, the second motor is provided with two, hydraulic telescoping rod and second motor fixed connection.

Preferably, the number of the support grooves is two, the two support grooves are symmetrically arranged by taking a longitudinal middle shaft of the second connecting plate as a symmetry axis, groove blocks are arranged on two sides of the sliding block and matched with the support grooves in size, the fourth rotating shaft penetrates through the sliding block, and the fourth rotating shaft is fixedly connected with the second air pumping plate.

Preferably, the lower extreme of second exhaust plate is provided with a plurality of super soft silica gel sucking discs, the rear end of super soft silica gel sucking disc is provided with small-size air extractor, the piece is inhaled to the electromagnetism and the circular telegram back inter attraction of electromagnetism piece, hydraulic telescoping rod runs through the second connecting plate, second connecting plate and hydraulic telescoping rod fixed connection.

Preferably, the battery panel placing groove and the battery panel clamping strip are both provided with two groups, each group of the battery panel placing groove and the battery panel clamping strip is provided with a plurality of groups, the distance between two adjacent battery panel placing grooves in each group is the same, and the distance between two adjacent battery panel clamping strips in each group is the same.

Preferably, first pivot is provided with two, first pivot and first initiative pivot are hugged closely to second driving belt, first initiative pivot and first driven spindle are hugged closely to third driving belt, the backup pad is provided with two, two be provided with the hot plate between the backup pad, and the length of hot plate is unanimous with infrared welding machine's length.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the utility model, through the arrangement of the ultra-soft silica gel sucker and the small air pump, when a user uses the PLC intelligent control type automatic series welding machine, the user can contact the battery piece through the ultra-soft silica gel sucker and then pump the air in the ultra-soft silica gel sucker through the small air pump, so that the battery piece is tightly connected with the ultra-soft silica gel sucker, when the battery piece needs to be put down, the inside of the ultra-soft silica gel sucker can be filled again through the small air pump, the battery piece can be put down, and the use pressure of the user is relieved to a certain extent through the matching of the ultra-soft silica gel sucker and the small air pump, and meanwhile, the working efficiency of the whole PLC intelligent control type automatic series welding machine is improved to a certain extent;

2. the utility model discloses a through the electromagnetism inhale the piece, the setting of electromagnetism piece and fourth pivot, the user is when using this automatic stringer of PLC intelligent control type, can inhale piece and electromagnetism piece through the electromagnetism after the circular telegram, realize the removal of slider in the spout, thereby can adjust the plane position adjustment of second air exhaust plate, rethread fifth motor drives the fourth pivot and rotates, thereby orders about the second air exhaust plate and rotates, through foretell cooperation, can reduce user's use cost to a certain extent.

Drawings

FIG. 1 is a half-sectional view of a PLC intelligent control type automatic stringer of the present invention;

fig. 2 is an internal top view of the PLC intelligent control type automatic stringer according to the present invention;

fig. 3 is a front view of the PLC intelligent control type automatic stringer according to the present invention;

FIG. 4 is a structural diagram of the A position of the PLC intelligent control type automatic stringer of the present invention;

fig. 5 is the utility model discloses a B department structure chart of automatic stringer of PLC intelligent control type.

In the figure: 1. an equipment housing; 2. a support pillar; 3. a connecting rod; 4. a PLC intelligent controller; 5. a glass protective window; 6. a rotating shaft fixing plate; 7. a first rotating shaft; 8. a rotating wheel; 9. a first drive belt; 10. a battery plate placing groove; 11. a second drive belt; 12. a first active shaft; 13. a fixing plate; 14. a third drive belt; 15. a first motor; 16. a first driven rotating shaft; 17. a motor mounting box; 18. a second motor; 19. a hydraulic telescopic rod; 20. a first connecting plate; 21. a third motor; 22. a second rotating shaft; 23. a first air extraction plate; 24. an ultra-soft silica gel sucker; 25. a small air extractor; 26. a third rotating shaft; 27. a fourth drive belt; 28. a support plate; 29. an infrared welding machine; 30. a fifth drive belt; 31. a second active shaft; 32. a fourth motor; 33. a second connecting plate; 34. an electromagnetic suction sheet; 35. a chute; 36. a support groove; 37. a slider; 38. an electromagnetic sheet; 39. a fourth rotating shaft; 40. a fifth motor; 41. a second pumping plate; 42. a sixth drive belt; 43. battery plate clamping strips; 44. a fifth rotating shaft; 45. a seventh drive belt; 46. a third active shaft; 47. a sixth motor; 48. a third driven rotating shaft; 49. and a second driven rotating shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, the present invention provides an embodiment: a PLC intelligent control type automatic stringer comprises an equipment shell 1, a support column 2 is arranged on one side of the lower end of the equipment shell 1, a connecting rod 3 is arranged on one side of the upper end of the equipment shell 1, a PLC intelligent controller 4 is arranged on the lower end of the connecting rod 3, equipment in the automatic stringer can be controlled through the PLC intelligent controller 4, a glass protection window 5 is arranged at the rear end of the PLC intelligent controller 4, a rotating shaft fixing plate 6 is arranged at the rear end of the glass protection window 5, a first rotating shaft 7 is arranged on the rotating shaft fixing plate 6, a rotating wheel 8 is arranged at the rear end of the rotating shaft fixing plate 6, a first transmission belt 9 is arranged on the rotating wheel 8, a battery panel placing groove 10 is arranged on the first transmission belt 9, a second transmission belt 11 is arranged on the first rotating shaft 7, a first driving rotating shaft 12 is arranged in the second transmission belt 11, and a fixing plate, a third transmission belt 14 is arranged at the rear end of the fixed plate 13, a first motor 15 is arranged at the rear end of the first driving rotating shaft 12, a first driven rotating shaft 16 is arranged on the third transmission belt 14, a motor mounting box 17 is arranged on one side of the first driven rotating shaft 16, the second motor 18 can be placed through the motor mounting box 17, a second motor 18 is arranged inside the motor mounting box 17, a hydraulic telescopic rod 19 is arranged at the upper end of the second motor 18, a first connecting plate 20 is arranged on the hydraulic telescopic rod 19, a third motor 21 is arranged at the upper end of the first connecting plate 20, a second rotating shaft 22 is arranged at the lower end of the third motor 21, a first air suction plate 23 is arranged at the lower end of the second rotating shaft 22, an ultra-soft silica gel suction cup 24 is arranged at the lower end of the first air suction plate 23, the battery piece can be grabbed, a small-sized air extractor 25 is arranged at one side of the first air suction plate 23, a third rotating shaft 26, a fourth transmission belt 27 is arranged at the upper end of the third rotating shaft 26, a support plate 28 is arranged at the front end of the fourth transmission belt 27, an infrared welding machine 29 is arranged on the support plate 28, a fifth transmission belt 30 is arranged on the third rotating shaft 26, a second driving rotating shaft 31 is arranged in the fifth transmission belt 30, a fourth motor 32 is arranged at the front end of the second driving rotating shaft 31, a second driven rotating shaft 49 is arranged at one side of the fourth motor 32, a second connecting plate 33 is arranged at one side of the rear end of the fourth transmission belt 27, an electromagnetic suction sheet 34 is arranged at the upper end of the second connecting plate 33, a sliding groove 35 is arranged at the front end of the electromagnetic suction sheet 34, a support groove 36 is arranged in the sliding groove 35, a sliding block 37 is arranged in the support groove 36, an electromagnetic sheet 38 is arranged at the rear end of the sliding block 37, a fourth rotating shaft 39 is arranged in the sliding block 37, a fifth motor 40 is arranged at the upper end of, a sixth transmission belt 42 is arranged at the lower end of one side of the second pumping plate 41, a battery panel clamping strip 43 is arranged on the sixth transmission belt 42, a fifth rotating shaft 44 is arranged at the front end of the battery panel clamping strip 43, a seventh transmission belt 45 is arranged on the fifth rotating shaft 44, a third driving rotating shaft 46 is arranged on the seventh transmission belt 45, a sixth motor 47 is arranged at the rear end of the third driving rotating shaft 46, and a third driven rotating shaft 48 is arranged on one side of the sixth motor 47.

Further, hydraulic telescoping rod 19 is provided with two, all is provided with hydraulic telescoping rod 19 on the second connecting plate 33, and hydraulic telescoping rod 19 is connected through argon arc welding with second connecting plate 33, and second motor 18 is provided with two, and hydraulic telescoping rod 19 and second motor 18 fixed connection can adjust the position of first connecting plate 20 and second connecting plate 33 through hydraulic telescoping rod 19.

Further, two supporting grooves 36 are provided, the two supporting grooves 36 are symmetrically arranged by taking the longitudinal central axis of the second connecting plate 33 as a symmetry axis, groove blocks are arranged on two sides of the sliding block 37, the size of each groove block is matched with that of the supporting groove 36, the fourth rotating shaft 39 penetrates through the sliding block 37, the fourth rotating shaft 39 is fixedly connected with the second air suction plate 41, and the sliding block 37 can stably slide in the sliding groove 35 by matching the supporting grooves 36 with the groove blocks.

Further, the lower extreme of second air exhaust plate 41 is provided with a plurality of super soft silica gel sucking discs 24, and the rear end of super soft silica gel sucking disc 24 is provided with small-size air extractor 25, and piece 34 and the electromagnetic sheet 38 inter attraction after circular telegram are inhaled to the electromagnetism, and hydraulic telescoping rod 19 runs through second connecting plate 33, and second connecting plate 33 and hydraulic telescoping rod 19 fixed connection can mutually support through super soft silica gel sucking disc 24 and small-size air extractor 25, realize snatching and putting down the battery piece.

Further, the battery board placing groove 10 and the battery board clamping strips 43 are provided with two groups, each group of the battery board placing groove 10 and the battery board clamping strips 43 is provided with a plurality of groups, the distance between two adjacent groups of the battery board placing groove 10 is the same, the distance between two adjacent groups of the battery board clamping strips 43 is the same, and the battery pieces can be conveniently loaded and unloaded through the battery board placing groove 10 and the battery board clamping strips 43.

Further, the number of the first rotating shafts 7 is two, the second transmission belt 11 is tightly attached to the first rotating shafts 7 and the first driving rotating shafts 12, the third transmission belt 14 is tightly attached to the first driving rotating shafts 12 and the first driven rotating shafts 16, the number of the supporting plates 28 is two, a heating plate is arranged between the two supporting plates 28, the length of the heating plate is consistent with that of the infrared welding machine 29, and welding of the battery pieces can be assisted through the heating plate arranged between the two supporting plates 28.

The working principle is as follows: when the automatic stringer is used, firstly, the whole automatic stringer is checked, after a user confirms that the check is correct, the power supply is switched on, the equipment is started, the automatic stringer can be used, the user firstly places a battery piece in the battery board placing groove 10 through the lifting device, the first motor 15 is started through the PLC intelligent controller 4, the first motor 15 drives the first driving rotating shaft 12 to rotate along with the first motor 15, the second driving belt 11 and the third driving belt 14 are driven to rotate along with the rotation of the first driving rotating shaft 12, so that the rotation of the first driving belt 9 is realized, when the battery piece moves to the lower end of the first connecting plate 20, the hydraulic telescopic rod 19 can be used for stretching, when the ultra-soft silica gel sucker 24 at the lower end of the first air pumping plate 23 is contacted with the battery piece, the stretching of the hydraulic telescopic rod 19 can be stopped, and air in the ultra-soft silica gel sucker 24 is pumped by the small air pump 25, thereby the battery piece is closely connected with the super soft silica gel sucker 24, meanwhile the second motor 18 drives the first connecting plate 20 to rotate, when the first connecting plate 20 rotates to the upper end of the fourth transmission belt 27, the first connecting plate can be extended and contracted through the hydraulic telescopic rod 19, then the super soft silica gel sucker 24 is inflated through the small air pump 25, thereby the battery piece falls on the fourth transmission belt 27, the rotation of the fourth motor 32 is controlled through the PLC intelligent controller 4, thereby the moving speed of the fourth transmission belt 27 is realized, thereby the arrangement of the battery piece is realized, along with the movement of the fourth transmission belt 27, the infrared welding of the infrared welding machine 29 is assisted through the heating plate arranged between the infrared welding machine 29 and the supporting plate 28, the infrared welding machine 29 is used for welding the battery piece, when the welded battery piece moves to the lower end of the second connecting plate 33, the battery piece is extended and contracted through the hydraulic telescopic rod 19, make the super soft silica gel sucking disc 24 and the small-size air extractor 25 of second extraction plate 41 lower extreme adsorb the battery piece, adsorb the back, realize the rotation of second connecting plate 33 through second motor 18, and remove sixth driving belt 42 department, inhale piece 34 and electromagnetic sheet 38 through the electromagnetism after the circular telegram and cooperate, in order to realize the removal of second extraction plate 41, rethread hydraulic telescoping rod 19 is flexible aerifys with small-size air extractor 25, place the battery piece between two panel card strips 43, rethread sixth motor 47 drives sixth driving belt 42 and removes, thereby realize the unloading of battery piece.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a PLC intelligent control type automatic stringer, includes equipment shell (1), its characterized in that: a support column (2) is arranged on one side of the lower end of the equipment shell (1), a connecting rod (3) is arranged on one side of the upper end of the equipment shell (1), a PLC intelligent controller (4) is arranged at the lower end of the connecting rod (3), a glass protection window (5) is arranged at the rear end of the PLC intelligent controller (4), a rotating shaft fixing plate (6) is arranged at the rear end of the glass protection window (5), a first rotating shaft (7) is arranged on the rotating shaft fixing plate (6), a rotating wheel (8) is arranged at the rear end of the rotating shaft fixing plate (6), a first transmission belt (9) is arranged on the rotating wheel (8), a battery panel placing groove (10) is arranged on the first transmission belt (9), a second transmission belt (11) is arranged on the first rotating shaft (7), and a first driving rotating shaft (12) is arranged in the second transmission belt (11), a fixing plate (13) is arranged on the first driving rotating shaft (12), a third transmission belt (14) is arranged at the rear end of the fixing plate (13), a first motor (15) is arranged at the rear end of the first driving rotating shaft (12), a first driven rotating shaft (16) is arranged on the third transmission belt (14), a motor mounting box (17) is arranged on one side of the first driven rotating shaft (16), a second motor (18) is arranged inside the motor mounting box (17), a hydraulic telescopic rod (19) is arranged at the upper end of the second motor (18), a first connecting plate (20) is arranged on the hydraulic telescopic rod (19), a third motor (21) is arranged at the upper end of the first connecting plate (20), a second rotating shaft (22) is arranged at the lower end of the third motor (21), and a first air extracting plate (23) is arranged at the lower end of the second rotating shaft (22), the lower end of the first air exhaust plate (23) is provided with an ultra-soft silica gel sucker (24), one side of the first air exhaust plate (23) is provided with a small air exhauster (25), the front end of the hydraulic telescopic rod (19) is provided with a third rotating shaft (26), the upper end of the third rotating shaft (26) is provided with a fourth transmission belt (27), the front end of the fourth transmission belt (27) is provided with a support plate (28), the support plate (28) is provided with an infrared welding machine (29), the third rotating shaft (26) is provided with a fifth transmission belt (30), the fifth transmission belt (30) is internally provided with a second driving rotating shaft (31), the front end of the second driving rotating shaft (31) is provided with a fourth motor (32), one side of the fourth motor (32) is provided with a second driven rotating shaft (49), one side of the rear end of the fourth transmission belt (27) is provided with a second connecting plate (33), an electromagnetic suction piece (34) is arranged at the upper end of the second connecting plate (33), a sliding groove (35) is arranged at the front end of the electromagnetic suction piece (34), a supporting groove (36) is arranged in the sliding groove (35), a sliding block (37) is arranged in the supporting groove (36), an electromagnetic piece (38) is arranged at the rear end of the sliding block (37), a fourth rotating shaft (39) is arranged inside the sliding block (37), a fifth motor (40) is arranged at the upper end of the fourth rotating shaft (39), a second air suction plate (41) is arranged at the lower end of the second connecting plate (33), a sixth transmission belt (42) is arranged at the lower end of one side of the second air suction plate (41), a battery plate clamping strip (43) is arranged on the sixth transmission belt (42), a fifth rotating shaft (44) is arranged at the front end of the battery plate clamping strip (43), and a seventh transmission belt (45) is arranged on the fifth rotating shaft (44), a third driving rotating shaft (46) is arranged on the seventh transmission belt (45), a sixth motor (47) is arranged at the rear end of the third driving rotating shaft (46), and a third driven rotating shaft (48) is arranged on one side of the sixth motor (47).

2. The PLC intelligent control type automatic stringer according to claim 1, wherein: hydraulic telescoping rod (19) are provided with two, all be provided with hydraulic telescoping rod (19) on second connecting plate (33), hydraulic telescoping rod (19) are welded through the argon arc with second connecting plate (33) and are connected, second motor (18) are provided with two, hydraulic telescoping rod (19) and second motor (18) fixed connection.

3. The PLC intelligent control type automatic stringer according to claim 1, wherein: the two supporting grooves (36) are symmetrically arranged by taking the longitudinal middle axis of the second connecting plate (33) as a symmetry axis, groove blocks are arranged on two sides of the sliding block (37) and are matched with the supporting grooves (36), the fourth rotating shaft (39) penetrates through the sliding block (37), and the fourth rotating shaft (39) is fixedly connected with the second air suction plate (41).

4. The PLC intelligent control type automatic stringer according to claim 1, wherein: the lower extreme of second air exhaust plate (41) is provided with a plurality of super soft silica gel sucking discs (24), the rear end of super soft silica gel sucking disc (24) is provided with small-size air extractor (25), piece (34) and electromagnetism piece (38) circular telegram back inter attraction are inhaled to the electromagnetism, second connecting plate (33) is run through in hydraulic telescoping rod (19), second connecting plate (33) and hydraulic telescoping rod (19) fixed connection.

5. The PLC intelligent control type automatic stringer according to claim 1, wherein: the solar cell panel placing groove is characterized in that two groups of solar cell panel placing grooves (10) and two groups of solar cell panel clamping strips (43) are arranged, each group of the solar cell panel placing grooves (10) and the solar cell panel clamping strips (43) is provided with a plurality of groups, the distance between every two adjacent solar cell panel placing grooves (10) in each group is the same, and the distance between every two adjacent solar cell panel clamping strips (43) in each group is the same.

6. The PLC intelligent control type automatic stringer according to claim 1, wherein: first pivot (7) are provided with two, first pivot (7) and first initiative pivot (12) are hugged closely in second driving belt (11), first initiative pivot (12) and first driven spindle (16) are hugged closely in third driving belt (14), backup pad (28) are provided with two, two be provided with the hot plate between backup pad (28), and the length of hot plate is unanimous with the length of infrared welding machine (29).