Bottom pasting device of pocket pasting machine

Abstract

The utility model discloses a bottom pasting device of a patch pocket machine, which comprises a bottom pasting installation base plate and a material supporting workbench, one end of the bottom pasting installation base plate is provided with a first feeding roller and a second feeding roller which are used for conveying lining backing materials, and the bottom pasting installation base plate is provided with a first punching installation seat and a second punching installation seat which are symmetrically installed. A first punching knife is arranged in the first punching mounting seat, and a second punching knife is arranged in the second punching mounting seat; a first guide seat for the lining backing material to pass through is arranged on the first punching mounting seat, and a first through hole for the first punching knife to pass through is formed in the first guide seat; the second punching mounting seat is provided with a second guide seat through which the lining backing material passes; the second guide seat is provided with a second through hole through which the second punching knife passes; a first suction cup is arranged above the first punching installation base, and a second suction cup is arranged above the second punching installation base. The front end of the material supporting workbench is provided with a first air suction material supporting plate and a second air suction material supporting plate which are used for fixing the bottom lining.

Description

Technical Field

[0001] This utility model belongs to the field of sewing equipment, specifically a bottom-applying device for a bag applicator. Background Technology

[0002] The patch pocket machine is mainly used for sewing pockets on jeans, shirts, and other garments. It can complete both straight stitch and loop stitch in one operation and is also suitable for sewing other irregularly shaped parts in garment processing. The main components of the patch pocket machine include a folding mechanism, a pressing (sewing) mechanism, a feeding mechanism, and a sewing machine head, all located on the worktable. The fabric is placed on the worktable. The folding mechanism folds the edge of the pocket fabric towards the bottom and places it on the body fabric. The pressing mechanism presses the pocket fabric firmly onto the surface of the body fabric. The pressing mechanism moves across the worktable via the feeding mechanism, moving the body fabric and pocket fabric together to the sewing machine head for stitching.

[0003] Traditionally, the placement and processing of the lining involves manually placing two pre-processed lining pieces onto the bottom of the bag, followed by machine processing. This method is inefficient, unreliable, and prone to misalignment of the lining. Furthermore, existing automatic bag-sealing machines lack a lining feeding device, requiring manual placement of the lining to be sewn, significantly impacting production efficiency. Summary of the Invention

[0004] This utility model addresses the aforementioned technical problems by providing a bottom-attaching device for a bag-attaching machine. It can automatically cut the required bottom-attaching lining material from the lining material and feed it to the pocket for sewing. The device has a simple structure and improves production efficiency.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a bottom-applying device for a bag-applying machine, comprising a bottom-applying mounting base and a material-supporting worktable. One end of the bottom-applying mounting base is provided with a first feeding roller and a second feeding roller for conveying the bottom material of the lining sheet. A first punching mounting seat and a second punching mounting seat are symmetrically installed on the bottom-applying mounting base. A first punch is provided in the first punching mounting seat, and a second punch is provided in the second punching mounting seat. A first guide seat is provided on the first punching mounting seat for the bottom material to pass through, and the first guide seat has a first through hole for the first punch to pass through. A second guide seat is provided on the second punching mounting seat for the bottom material to pass through, and the second guide seat has a second through hole for the second punch to pass through. A first suction cup is provided above the first punching mounting seat, and a second suction cup is provided above the second punching mounting seat. A first suction material-supporting plate and a second suction material-supporting plate are provided at the front end of the material-supporting worktable for fixing the bottom lining sheet.

[0006] To optimize the above technical solution, the present invention also includes the following improved technical solutions.

[0007] A bottom mounting plate is provided below the aforementioned bottom mounting base, and the bottom mounting base is slidably mounted on the bottom mounting plate via a first slide rail. One end of the bottom mounting base has a fixing pin, and one end of the bottom mounting plate has a fixing block with a mounting hole for inserting the fixing pin. When the fixing pin is inserted into the mounting hole, the bottom mounting base is fixed above the bottom mounting plate. When equipment maintenance is required, the fixing pin in the mounting hole is pulled out, and the bottom mounting base is slid out along the first slide rail, improving efficiency.

[0008] The aforementioned bottom mounting base is equipped with a first feeding mounting plate and a second feeding mounting plate at one end. The first feeding roller and the second feeding roller are rotatably mounted between the first feeding mounting plate and the second feeding mounting plate. The first feeding roller is connected to the first feeding motor via a first synchronous belt.

[0009] The second feeding roller has a first connecting block at one end, which is rotatably mounted on the first feeding mounting plate via a first rotating shaft. One end of a first tension spring is connected to the first connecting block, and the other end is connected to the first feeding mounting plate. The other end of the second feeding roller has a second connecting block, which is rotatably mounted on the second feeding mounting plate via a second rotating shaft. One end of a second tension spring is connected to the second connecting block, and the other end is connected to the second feeding mounting plate. Depending on the thickness of the liner material, the second feeding roller can elastically adhere to the first feeding roller via the first and second tension springs. The first and second feeding rollers move the two sets of liner materials into the first and second guide seats, respectively.

[0010] The input ends of the first guide seat and the second guide seat are respectively provided with two limiting baffles that can adjust the feeding width. The two limiting baffles are installed opposite each other to restrict the passage of the lining material.

[0011] The first punching mounting base is provided with a first punching cylinder, which is connected to the first punch; the second punching mounting base is provided with a second punching cylinder, which is connected to the second punch.

[0012] The first punching mounting base is provided with a first transfer cylinder on one side, which is connected to the first suction cup; the second punching mounting base is provided with a second transfer cylinder on one side, which is connected to the second suction cup.

[0013] The first guide seat is composed of a third mounting top plate and a third mounting bottom plate, and the lower surface of the third mounting top plate is provided with a third groove for the lining material to pass through; the second guide seat is composed of a fourth mounting top plate and a fourth mounting bottom plate, and the lower surface of the fourth mounting top plate is provided with a fourth groove for the lining material to pass through.

[0014] The above-mentioned material support workbench is provided with a suction feeding mounting plate below it, and a suction feeding cylinder is installed on the suction feeding mounting plate; the front end of the material support workbench is provided with a first suction material support plate and a second suction material support plate, and the drive rod of the suction feeding cylinder is connected to the first suction material support plate and the second suction material support plate respectively through a suction feeding connecting block.

[0015] The aforementioned suction feeding mounting plate is equipped with a first guide rail and a second guide rail. The first suction material support plate is slidably mounted on the suction feeding mounting plate via the first guide rail, and the second suction material support plate is slidably mounted on the suction feeding mounting plate via the second guide rail.

[0016] Compared with existing technologies, the bottom-applying device of this bag-applying machine is easy to install, solves the problem of manually placing the bottom-applying sheet, reduces labor costs, and improves production efficiency. Furthermore, the bottom-applying device of this bag-applying machine can also be cut into corresponding shapes according to different needs, increasing the applicability of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the substrate for mounting the bottom in this embodiment.

[0018] Figure 2 yes Figure 1 Exploded view.

[0019] Figure 3 This is a three-dimensional structural diagram of the material handling workbench in this embodiment. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0021] Figures 1 to 3 The diagram shown is a structural schematic of this utility model.

[0022] The reference numerals in the attached drawings are as follows: 1. Bottom mounting base plate; 2. Bottom fixing plate; 3. First slide rail; 4. First slider; 5. Fixing pin; 6. Fixing block; 6a. Mounting hole; 7. First feeding mounting plate; 8. Second feeding mounting plate; 9. First feeding roller; 10. Second feeding roller; 11. First feeding motor mounting plate; 12. First feeding motor; 13. First synchronous pulley; 14. Second synchronous pulley; 15. First synchronous belt; 16. First connecting block; 17. First rotating shaft; 18. Second connecting block; 19. Second rotating shaft; 20. First tension spring; 21. Second tension spring; 22. First punch mounting seat; 22a. First mounting top plate; 22b. First mounting bottom plate; 23. First punch cylinder; 24. Second punch mounting seat; 25. Second mounting top plate; 25a. Second mounting bottom plate; 25b. Second punch cylinder; 26. 27. Second punch, 28. First guide seat, 29. Third mounting top plate, 28a. Third mounting bottom plate, 28b. Third groove, 28c. First through hole, 28d. Second guide seat, 29. Fourth mounting top plate, 29a. Fourth mounting bottom plate, 29b. Fourth groove, 29c. Second through hole, 29d. Limiting baffle, 30. Material support part, 30a. First transfer cylinder, 31. First transfer cylinder mounting plate, 32. First suction cup, 33. First connecting plate, 34. Second connecting plate, 35. Second transfer cylinder, 36. Second suction cup, 37. Third connecting plate, 38. Fourth connecting plate, 39. Material support workbench, 40. Suction feeding mounting plate, 41. Suction feeding cylinder mounting bracket, 42. Suction feeding cylinder, 43. First suction material support plate, 44. Second suction material support plate, 45. First guide rail, 46. Second guide rail, 47.

[0023] like Figure 1 As shown, the bottom-applying device of a bag-applying machine according to this utility model includes a bottom-applying mounting base plate 1 and a material-supporting worktable 40. One end of the bottom-applying mounting base plate 1 is provided with a first feeding roller 9 and a second feeding roller 10 for conveying the bottom material of the lining sheet. Two sets of symmetrically mounted first punching mounting seats 22 and second punching mounting seats 25 are provided on the bottom-applying mounting base 1. A first punch 24 is provided inside the first punching mounting seat 22, and a second punch 27 is provided inside the second punching mounting seat 25. A first guide seat 28 is provided on the first punching mounting seat 22, and a first suction cup 33 is provided above the first guide seat 28. A second guide seat 29 is provided on the second punching mounting seat 25, and a second suction cup 37 is provided above the second guide seat 29.

[0024] The lining material to be cut is moved to the first guide seat 28 and the second guide seat 29 by the first feeding roller 9 and the second feeding roller 10. The first punch 24 and the second punch 27 cut the lining material into corresponding shapes of bottom lining pieces. The first suction cup 33 and the second suction cup 37 pick up the corresponding bottom lining pieces and move them to the first suction support plate 44 and the second suction support plate 45 at the front end of the material support worktable 40 to achieve automatic bottom application.

[0025] like Figure 2As shown, a bottom mounting base 1 is provided with a bottom fixing plate 2 below it, and the bottom mounting base 1 is slidably mounted on the bottom fixing plate 2. A first slide rail 3 is mounted on the lower surface of the bottom mounting base 1, and a first slider 4 is mounted on the upper surface of the bottom fixing plate 2. The bottom mounting base 1 can move horizontally relative to the bottom fixing plate 2 along the first slide rail 3. A fixing pin 5 is provided at one end of the bottom mounting base 1, and a fixing block 6 is provided at one end of the bottom fixing plate 2. The fixing block 6 has a mounting hole 6a. When the bottom mounting base 1 moves directly above the bottom fixing plate 2, the fixing pin 5 can be inserted into the mounting hole 6a of the fixing block 6, fixing the bottom mounting base 1 above the bottom fixing plate 2. When equipment maintenance is required, the fixing pin 5 in the mounting hole 6a is pulled out, and the bottom mounting base 1 is slid out along the first slide rail 3, improving efficiency.

[0026] A first feeding mounting plate 7 and a second feeding mounting plate 8 are mounted on one end of the bottom mounting base plate 1. A first feeding roller 9 and a second feeding roller 10 that can rotate are provided between the first feeding mounting plate 7 and the second feeding mounting plate 8. A first feeding motor 12 is provided on one side of the first feeding mounting plate 7. The body of the first feeding motor 12 is fixed to one side of the first feeding mounting plate 7 through a first feeding motor mounting plate 11.

[0027] The drive shaft of the first feeding motor 12 is connected to the first synchronous pulley 13, and the first feeding roller 9 is connected to the second synchronous pulley 14. A first synchronous belt 15 is sleeved between the first synchronous pulley 13 and the second synchronous pulley 14. The first feeding motor 12 drives the first feeding roller 9 to rotate through the first synchronous belt 15. The second feeding roller 10 is positioned above the first feeding roller 9, and the first feeding roller 9 drives the second feeding roller 10 to rotate synchronously.

[0028] One end of the second feeding roller 10 is provided with a first connecting block 16, which is rotatably mounted on the first feeding mounting plate 7 via a first rotating shaft 17. The other end of the second feeding roller 10 is provided with a second connecting block 18, which is rotatably mounted on the second feeding mounting plate 8 via a second rotating shaft 19. One end of the first tension spring 20 is connected to the first connecting block 16, and the other end of the first tension spring 20 is connected to the first feeding mounting plate 7. One end of the second tension spring 21 is connected to the second connecting block 18, and the other end of the second tension spring 21 is connected to the second feeding mounting plate 8. Depending on the thickness of the lining material, the second feeding roller 10 can elastically adhere to the first feeding roller 9 via the first tension spring 20 and the second tension spring 21. The first feeding roller 9 and the second feeding roller 10 move the two sets of lining materials into the first guide seat 28 and the second guide seat 29, respectively.

[0029] A first punching mounting seat 22 and a second punching mounting seat 25 are provided on the bottom mounting base 1. The second punching mounting seat 25 and the first punching mounting seat 22 are symmetrically mounted on the bottom mounting base 1. The first punching mounting seat 22 consists of a first mounting top plate 22a and a first mounting bottom plate 22b. A first punching cylinder 23 is provided inside the first punching mounting seat 22. The cylinder body of the first punching cylinder 23 is vertically mounted on the first mounting bottom plate 22b. The drive rod of the first punching cylinder 23 is connected to a first punch 24, and the first punching cylinder 23 can drive the first punch 24 to move up and down.

[0030] The second punching mounting base 25 consists of a second mounting top plate 25a and a second mounting bottom plate 25b. A second punching cylinder 26 is installed inside the second punching mounting base 25, and the cylinder body of the second punching cylinder 26 is vertically mounted on the second mounting bottom plate 25b. The drive rod of the second punching cylinder 26 is connected to a second punch 27, and the second punching cylinder 26 can drive the second punch 27 to move up and down.

[0031] A first guide seat 28 is mounted on the first punching mounting base 22. The first guide seat 28 consists of a third mounting top plate 28a and a third mounting bottom plate 28b. The third mounting bottom plate 28b of the first guide seat 28 is fixed to the first mounting top plate 22a of the first punching mounting base 22. A third groove 28c is formed on the lower surface of the third mounting top plate 28a, allowing the lining material to pass horizontally through the first guide seat 28 along the third groove 28c. Both the third mounting top plate 28a and the third mounting bottom plate 28b of the first guide seat 28 have a first through hole 28d for the first punch 24 to pass vertically through. The drive rod of the first punching cylinder 23 drives the first punch 24 to move upward. The first punch 24 cuts the required bottom lining from the lining material in the first guide seat 28, and the bottom lining passes upward through the first guide seat 28.

[0032] A second guide seat 29 is mounted on the second punching mounting base 25. The second guide seat 29 consists of a fourth mounting top plate 29a and a fourth mounting bottom plate 29b. The fourth mounting bottom plate 29b of the second guide seat 29 is fixed to the second mounting top plate 25a of the second punching mounting base 25. A fourth groove 29c is formed on the lower surface of the fourth mounting top plate 29a, allowing the lining material to pass horizontally through the second guide seat 29 along the fourth groove 29c. Both the fourth mounting top plate 29a and the fourth mounting bottom plate 29b of the second guide seat 29 have a second through hole 29d for the second punch 27 to pass vertically through. The drive rod of the second punching cylinder 26 drives the second punch 27 to move upward. The second punch 27 cuts the required bottom lining from the lining material in the second guide seat 29, and the bottom lining passes upward through the second guide seat 29.

[0033] In this embodiment, the first punch 24 and the second punch 27 cut the lining material into circular backing sheets. Depending on the required shape of the backing sheet, the corresponding first punch 24 and the second punch 27 are replaced, and the first punch 24 and the second punch 27 cut the lining material into the corresponding shape of the backing sheet.

[0034] The input ends of the first guide seat 28 and the second guide seat 29 are respectively provided with two limiting baffles 30 that can adjust the conveying width. The two limiting baffles 30 are installed opposite each other to restrict the passage of the lining material. Adjusting the distance between the two limiting baffles 30 adjusts the conveying width of the lining material.

[0035] The top of the limiting baffle 30 has a material support part 30a with a certain arc, which can be flush with the third groove 28c and the fourth groove 29c to ensure the accuracy of conveying and cutting the lining material. The bottom of the limiting baffle 30 has an installation groove, through which screws pass to fix the limiting baffle 30 to the first punching mounting seat 22 and the second punching mounting seat 25 respectively.

[0036] The first punching mounting base 22 is equipped with a first transfer cylinder 31. The cylinder body of the first transfer cylinder 31 is fixed to one side of the first punching mounting base 22 via a first transfer cylinder mounting plate 32. A first suction cup 33 is provided above the first punching mounting base 22. The drive rod of the first transfer cylinder 31 is connected to the first suction cup 33, and the first transfer cylinder 31 can drive the first suction cup 33 to move horizontally. The drive rod of the first transfer cylinder 31 is connected to a first connecting plate 34, and the first connecting plate 34 is connected to a second connecting plate 35, which is connected to the first suction cup 33. The first suction cup 33 is located above the first guide seat 28. The first suction cup 33 can grab the bottom lining sheet on the first guide seat 28. The first transfer cylinder 31 drives the first suction cup 33 to move back and forth, thereby moving the bottom lining sheet to the front end of the material support table 40.

[0037] The second punching mounting base 25 is equipped with a second transfer cylinder 36. The cylinder body of the second transfer cylinder 36 is fixed to one side of the second punching mounting base 25 via a second transfer cylinder mounting plate. A second suction cup 37 is provided above the second punching mounting base 25. The drive rod of the second transfer cylinder 36 is connected to the second suction cup 37, and the second transfer cylinder can drive the second suction cup 37 to move horizontally. The drive rod of the second transfer cylinder 36 is connected to a third connecting plate 38, and the third connecting plate 38 is connected to a fourth connecting plate 39, which is connected to the second suction cup 37. The second suction cup 37 is located above the first guide seat 28. The second suction cup 37 can grab the bottom lining sheet on the first guide seat 28. The second transfer cylinder 36 drives the second suction cup 37 to move back and forth, thereby moving the bottom lining sheet to the front end of the material support table 40.

[0038] like Figure 3As shown, a suction feeding mounting plate 41 is provided below the material support workbench 40. The suction feeding mounting plate 41 is provided with a suction feeding cylinder mounting bracket 42, and a suction feeding cylinder 43 is vertically mounted on the suction feeding cylinder mounting bracket 42. A first suction material support plate 44 and a second suction material support plate 45 are provided at the front end of the material support workbench 40. The drive rod of the suction feeding cylinder 43 is connected to the first suction material support plate 44 and the second suction material support plate 45 respectively through a suction feeding connecting block. The suction feeding cylinder 43 can drive the first suction material support plate 44 to move up and down.

[0039] The suction feeding mounting plate 41 is vertically mounted with a first guide rail 46 and a second guide rail 47. A first suction support plate 44 is slidably mounted on the suction feeding mounting plate 41 via the first guide rail 46, and a second suction support plate 45 is slidably mounted on the suction feeding mounting plate 41 via the second guide rail 47. The first suction support plate 44 can move up and down along the first guide rail 46, and the second suction support plate 45 can move up and down along the second guide rail 47.

[0040] The suction feeding cylinder 43 lowers the first suction support plate 44 and the second suction support plate 45. The first transfer cylinder 31 drives the first suction cup 33 to move the bottom lining sheet onto the first suction support plate 44, and the second transfer cylinder 36 drives the second suction cup 37 to move the bottom lining sheet onto the second suction support plate 45. The first suction support plate 44 and the second suction support plate 45 fix the bottom lining sheet with negative pressure suction. The suction feeding cylinder 43 then raises the first suction support plate 44 and the second suction support plate 45 to be flush with the material support table 40. At this time, the two bottom lining sheets are delivered to the bottom of the pocket, and the bottom lining sheets are positioned exactly at the two corners of the pocket. Subsequently, the pocket and the two reinforcing bottom lining sheets are sent to the sewing area for sewing reinforcement.

[0041] The preferred embodiment of this utility model has been described, and various changes or modifications made by those skilled in the art will not depart from the scope of this utility model.

Claims

1. A bottom-applying device for a bag-applying machine, comprising a bottom-applying mounting plate (1) and a material-supporting worktable (40), characterized in that: The bottom mounting base (1) is provided with a first feeding roller (9) and a second feeding roller (10) for conveying the lining material at one end. The bottom mounting base (1) is provided with a first punching mounting seat (22) and a second punching mounting seat (25) symmetrically mounted. The first punching mounting seat (22) is provided with a first punch (24), and the second punching mounting seat (25) is provided with a second punch (27). The first punching mounting seat (22) is provided with a first guide seat (28) for the lining material to pass through. The first guide seat (28) is provided with a first punch for the first punch. The first through hole (28d) through which the blade (24) passes; the second punching mounting base (25) is provided with a second guide seat (29) for the lining material to pass through, and the second guide seat (29) is provided with a second through hole (29d) for the second punch (27) to pass through; a first suction cup (33) is provided above the first punching mounting base (22), and a second suction cup (37) is provided above the second punching mounting base (25); the front end of the material support worktable (40) is provided with a first suction support plate (44) and a second suction support plate (45) for fixing the bottom lining.

2. The bottom-applying device for a bag-applying machine according to claim 1, characterized in that: The bottom mounting base (1) is provided with a bottom fixing plate (2) below it. The bottom mounting base (1) is slidably mounted on the bottom fixing plate (2) via a first slide rail (3). One end of the bottom mounting base is provided with a fixing pin (5), and one end of the bottom fixing plate (2) is provided with a fixing block (6). The fixing block (6) has a mounting hole (6a) for the fixing pin (5) to be inserted.

3. The bottom-applying device for a bag-applying machine according to claim 2, characterized in that: The bottom mounting base (1) is equipped with a first feeding mounting plate (7) and a second feeding mounting plate (8) at one end. The first feeding roller (9) and the second feeding roller (10) are rotatably mounted between the first feeding mounting plate (7) and the second feeding mounting plate (8). The first feeding roller (9) is connected to the first feeding motor (12) through the first synchronous belt (15).

4. The bottom-applying device for a bag-applying machine according to claim 3, characterized in that: One end of the second feeding roller (10) is provided with a first connecting block (16), which is rotatably mounted on the first feeding mounting plate (7) via a first rotating shaft (17); one end of the first tension spring (20) is connected to the first connecting block (16), and the other end of the first tension spring (20) is connected to the first feeding mounting plate (7); the other end of the second feeding roller (10) is provided with a second connecting block (18), which is rotatably mounted on the second feeding mounting plate (8) via a second rotating shaft (19); one end of the second tension spring (21) is connected to the second connecting block (18), and the other end of the second tension spring (21) is connected to the second feeding mounting plate (8).

5. The bottom-applying device for a bag-applying machine according to claim 4, characterized in that: The input end of the first guide seat (28) and the input end of the second guide seat (29) are respectively provided with two limiting baffles (30) that can adjust the feeding width. The two limiting baffles (30) are installed opposite each other to restrict the passage of the lining material.

6. The bottom-applying device for a bag-applying machine according to claim 5, characterized in that: The first punching mounting base (22) is provided with a first punching cylinder (23), which is connected to the first punch (24); the second punching mounting base (25) is provided with a second punching cylinder (26), which is connected to the second punch (27).

7. The bottom-applying device for a bag-applying machine according to claim 6, characterized in that: The first punching mounting base (22) is provided with a first transfer cylinder (31) on one side, and the first transfer cylinder (31) is connected to the first suction cup (33); the second punching mounting base (25) is provided with a second transfer cylinder (36) on one side, and the second transfer cylinder (36) is connected to the second suction cup (37).

8. The bottom-applying device for a bag-applying machine according to claim 7, characterized in that: The first guide seat (28) is composed of a third mounting top plate (28a) and a third mounting bottom plate (28b), and the lower surface of the third mounting top plate (28a) is provided with a third groove (28c) for the lining material to pass through; the second guide seat (29) is composed of a fourth mounting top plate (29a) and a fourth mounting bottom plate (29b), and the lower surface of the fourth mounting top plate (29a) is provided with a fourth groove (29c) for the lining material to pass through.

9. The bottom-applying device for a bag-applying machine according to claim 8, characterized in that: The material support workbench (40) is provided with a suction feeding mounting plate (41) below it, and a suction feeding cylinder (43) is installed on the suction feeding mounting plate (41); the front end of the material support workbench (40) is provided with a first suction support plate (44) and a second suction support plate (45), and the drive rod of the suction feeding cylinder (43) is connected to the first suction support plate (44) and the second suction support plate (45) respectively through a suction feeding connecting block.

10. The bottom-applying device for a bag-applying machine according to claim 9, characterized in that: The suction feeding mounting plate (41) is equipped with a first guide rail (46) and a second guide rail (47). The first suction support plate (44) is slidably mounted on the suction feeding mounting plate (41) via the first guide rail (46), and the second suction support plate (45) is slidably mounted on the suction feeding mounting plate (41) via the second guide rail (47).

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