A packaging bag supply structure for a box packaging heat seal

Abstract

The application discloses a kind of Box packaging heat-seal package bag feed structure, belong to packaging technical field, including lower frame;The downside of pad is equipped with limiting mechanism, the sidewall of support frame is fixedly installed with limiting guide sheet metal;The upper end of support frame is fixedly installed with angle mechanism, beam is fixedly installed with handling mechanism;Handling mechanism includes moving assembly, adjustable handling suction cup and handling jaw assembly.By the above-mentioned mode, limiting mechanism, screw linear module, pad and limiting guide sheet metal constitute material bin structure, the upper end surface of limiting guide sheet metal constitutes material reference surface;Limiting mechanism and angle mechanism cooperate to realize the limiting operation of packaging bag, and the uppermost packaging bag of screw linear module is always located in material reference surface;Angle mechanism assists packaging bag angle, handling jaw assembly and adjustable handling suction cup grab packaging bag, move the bag body of angle to vacuumizing heat-seal equipment processing platform, and keep bag mouth angle state to facilitate subsequent bag supporting operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the packaging field, and in particular to a packaging bag feeding structure for Box packaging heat sealing. BACKGROUND

[0002] In the packaging industry, vacuum heat sealing treatment of packaging bags is a common processing method, which can effectively prolong the shelf life of products and reduce the occupied area of packaging bags. Selecting a suitable packaging bag feeding device can greatly increase production efficiency and reduce the difficulty of vacuum heat sealing operation.

[0003] For example, the patent with publication number CN113650865A discloses a packaging bag feeding machine and a packaging machine, which include a storage warehouse for storing standby packaging bag stacks, a working warehouse for storing packaging bag stacks for mechanical hand grabbing, and a pushing member. However, the packaging bag is made of soft material and is prone to deviation during transportation, which adversely affects the feeding of the bag body. The bag body needs to be supported during subsequent packaging operations, and the non-angle packaging bag causes difficulties in subsequent supporting operations.

[0004] Therefore, the present application provides a packaging bag feeding structure for Box packaging heat sealing to solve the above problems. SUMMARY

[0005] In view of the above-mentioned shortcomings of the prior art, the present application provides a packaging bag feeding structure for Box packaging heat sealing.

[0006] To achieve the above purpose, the present application realizes the following technical solutions:

[0007] A packaging bag feeding structure for Box packaging heat sealing, comprising a lower frame;

[0008] The lower frame is fixedly installed with a support frame, and a cross beam is fixedly installed on the support frame. A lead screw linear module is installed on the lower frame and located between the support frames. The moving end of the lead screw linear module is fixedly installed with a pad for supporting material. The lower side of the pad is provided with a limiting mechanism, and the side wall of the support frame is fixedly installed with a limiting guide plate for limiting the packaging bag. The upper end of the support frame is fixedly installed with an angle forming mechanism, and the cross beam is fixedly installed with a carrying mechanism.

[0009] The carrying mechanism includes a moving assembly, an adjustable carrying suction cup, and a carrying clamp jaw assembly. The moving assembly is installed on the cross beam. The moving assembly is installed with a plurality of adjustable carrying suction cups. The end of the moving assembly close to the angle forming mechanism is also installed with a carrying clamp jaw assembly.

[0010] Further, the limiting mechanism comprises a mounting plate, a driving assembly, a fixed plate, positioning rods and movable grooves, the mounting plate is fixedly installed on the lower frame, the driving assembly is fixedly installed on the mounting plate, the fixed plate is fixedly installed on the driving assembly, the positioning rods are uniformly fixedly installed on the fixed plate, and the movable grooves for the movement of the positioning rods are formed in the base plate.

[0011] Further, the driving assembly comprises a driven wheel, a driving wheel, a synchronous belt, a connecting plate, a sliding rail and a sliding block, the driven wheel and the driving wheel are rotatably installed at two ends of the mounting plate through bearings, the driving wheel is connected with the driving device, the driven wheel and the driving wheel are connected through the synchronous belt, the sliding rail is fixedly installed on the mounting plate, the sliding block is limitingly and slidably connected with the sliding rail, and the connecting plate is fixedly connected with the synchronous belt and the sliding block at two ends thereof; the upper end of the sliding block is fixedly installed with the fixed plate.

[0012] Further, the lower side of the base plate is fixedly installed with a photoelectric switch for detecting whether there is a packaging bag on the base plate.

[0013] Further, one group of opposite photoelectric devices is installed at each end of the support frame, the two groups of opposite photoelectric devices are aligned with each other, and the limiting guide metal plate is provided with through grooves for avoiding shielding the opposite photoelectric devices.

[0014] Further, an ion fan for eliminating static electricity is fixedly installed at an end of the support frame away from the corner forming mechanism, and the top ends of the limiting guide metal plates are uniformly provided with a plurality of hollows for the movement of the carrying clamp jaw assemblies.

[0015] Further, the corner forming mechanism comprises a first stroke air cylinder, a second stroke air cylinder, a lifting air cylinder, a suction disc mounting strip and adjustable corner forming suction discs, the first stroke air cylinder is fixedly installed on the support frame, the output end of the first stroke air cylinder is fixedly installed with the second stroke air cylinder, the output end of the second stroke air cylinder is fixedly installed with the lifting air cylinder, the output end of the lifting air cylinder is fixedly installed with the suction disc mounting strip, and the suction disc mounting strip is uniformly provided with a plurality of adjustable corner forming suction discs.

[0016] Further, the moving assembly comprises an X-axis linear module, a Y-axis linear module, a Z-axis linear module and a suction disc mounting plate, the X-axis linear module is fixedly installed on the cross beam, the moving end of the X-axis linear module is fixedly installed with the Y-axis linear module, the moving end of the Y-axis linear module is fixedly installed with the Z-axis linear module, the moving end of the Z-axis linear module is fixedly installed with the suction disc mounting plate, and the suction disc mounting plate is uniformly provided with a plurality of adjustable carrying suction discs.

[0017] Further, the carrying clamp assembly comprises a cylinder adjusting plate, a first cylinder, a second cylinder, a third cylinder, a rubber coating clamp, a rubber coating pressure head, a limiting slide rail and a limiting slide block, the cylinder adjusting plate is fixedly connected with the suction cup mounting plate, the first cylinder is fixedly installed on the cylinder adjusting plate, the output end of the first cylinder is fixedly installed with the second cylinder, and the output end of the second cylinder is fixedly installed with the pressing plate.

[0018] Further, the side wall of the second cylinder is fixedly installed with the rubber coating clamp, the upper end of the rubber coating clamp is fixedly installed with the third cylinder, the inner side of the rubber coating clamp is fixedly installed with the limiting slide rail, the limiting slide block is limitingly and slidably connected with the limiting slide rail, the rubber coating pressure head matched with the bag opening of the rubber coating clamp is fixedly installed on the limiting slide rail, and the output end of the third cylinder is fixedly connected with the rubber coating pressure head.

[0019] The present application has the following technical effects:

[0020] In the present application, the limiting mechanism, the lead screw linear module, the backing plate and the limiting guide sheet metal constitute a material bin structure for feeding the packaging bags, the upper end surface of the limiting guide sheet metal constitutes a material taking reference surface; the stacked packaging bags are placed on the backing plate, the limiting mechanism and the angle lifting mechanism are cooperatively used to limit the packaging bags, and the backing plate is vertically lifted by the lead screw linear module, so that the uppermost packaging bag is always located on the material taking reference surface; the angle lifting mechanism lifts the packaging bag, the moving assembly drives the carrying clamp assembly and the adjustable carrying suction cup to grab the packaging bag, and the lifted bag body is moved to the processing platform of the vacuum heat sealing equipment, and the bag opening is kept in the lifted state, so as to facilitate the subsequent bag opening supporting operation. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0022] Figure 1 It is a perspective view of the whole bag vacuumizing unit.

[0023] Figure 2 It is a perspective view of the packaging bag feeding structure for Box packaging heat sealing of the present application. Figure One ;

[0024] Figure 3 It is a front view of the packaging bag feeding structure for Box packaging heat sealing of the present application.

[0025] Figure 4 It is a perspective view of the packaging bag feeding structure for Box packaging heat sealing of the present application.Figure Two ;

[0026] Figure 5 Box packaging heat-sealing packaging bag feeding structure of the application Figure Three ;

[0027] Figure 6 Box packaging heat-sealing packaging bag feeding structure of the application

[0028] Figure 7 Box packaging heat-sealing packaging bag feeding structure of the application

[0029] Figure 8 Box packaging heat-sealing packaging bag feeding structure of the application

[0030] Figure 9 Box packaging heat-sealing packaging bag feeding structure of the application Figure 8 Enlarged view of A in the figure.

[0031] The numbers in the figure respectively represent:

[0032] 1, lower frame; 101, crossbeam; 102, support frame; 2, limiting mechanism; 201, mounting plate; 202, driven wheel; 203, driving wheel; 204, synchronous belt; 205, connecting plate; 206, slide rail; 207, sliding block; 208, fixed plate; 209, positioning rod; 210, movable slot; 3, angle lifting mechanism; 31, first stroke air cylinder; 32, second stroke air cylinder; 33, lifting air cylinder; 34, suction cup mounting strip; 35, adjustable angle lifting suction cup; 4, carrying mechanism; 42, X-axis linear module; 43, Y-axis linear module; 44, Z-axis linear module; 45, suction cup mounting plate; 46, adjustable carrying suction cup; 41, carrying clamping jaw assembly; 411, air cylinder adjusting plate; 412, first air cylinder; 413, second air cylinder; 414, third air cylinder; 415, rubber-coated clamping jaw; 416, rubber-coated pressing head; 417, limiting slide rail; 418, limiting sliding block; 419, pressing plate; 5, screw linear module; 6, backing plate; 7, photoelectric switch; 8, limiting guide sheet metal; 9, opposite light emitting photoelectric; 10, through slot; 11, ion fan. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings of the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0034] The application will be further described in connection with the following examples.

[0035] In the following description, "left", "right", "front", "back", "upper", "lower" are oriented in the perspective of the front view.

[0036] Example 1

[0037] Please refer to the drawings attached to the specification Figure 1 And 2 A packaging bag feeding structure for box packaging heat sealing includes a lower frame 1;

[0038] The support frame 102 is fixedly installed on the lower frame 1, and the cross beam 101 is fixedly installed on the support frame 102; the lead screw linear module 5 is installed on the lower frame 1 and located between the support frames 102, and the moving end of the lead screw linear module 5 is fixedly installed with a pad plate 6 for supporting materials; the lower side of the pad plate 6 is provided with a limiting mechanism 2, and the side wall of the support frame 102 is fixedly installed with a limiting guide plate 8 cooperating with the limiting mechanism 2 to limit the packaging bag; the upper end of the support frame 102 is fixedly installed with a corner lifting mechanism 3, and the cross beam 101 is fixedly installed with a carrying mechanism 4;

[0039] The carrying mechanism 4 includes a moving assembly, an adjustable carrying suction cup 46 and a carrying clamp jaw assembly 41, the moving assembly is installed on the cross beam 101, a plurality of adjustable carrying suction cups 46 are installed on the moving assembly, and the moving assembly is also installed with a carrying clamp jaw assembly 41 at one end close to the corner lifting mechanism 3;

[0040] In the present application, the limiting mechanism 2, the lead screw linear module 5, the pad plate 6 and the limiting guide plate 8 constitute a material bin structure for feeding the packaging bag, and the upper end surface of the limiting guide plate 8 constitutes a material taking reference surface; the stacked packaging bags are placed on the pad plate 6, and the limiting mechanism 2 and the corner lifting mechanism 3 cooperate to realize the limiting operation of the packaging bag, and the pad plate 6 is vertically lifted by the lead screw linear module 5, so that the uppermost packaging bag is always located on the material taking reference surface; the corner lifting mechanism 3 grabs the packaging bag to make the packaging bag cornered, and then the moving assembly drives the carrying clamp jaw assembly 41 and the adjustable carrying suction cup 46 to grab the packaging bag, and moves the cornered bag body to the processing platform of the vacuum heat sealing equipment, and keeps the bag opening cornered, so as to facilitate the subsequent bag opening supporting operation.

[0041] Example 2

[0042] As Figure 2 , 5As shown in FIGS. 6, as a preferred embodiment of the present application, the limiting mechanism 2 comprises a mounting plate 201, a driving assembly, a fixed plate 208, positioning rods 209 and movable grooves 210, the mounting plate 201 is fixedly installed on the lower frame 1, the driving assembly is fixedly installed on the mounting plate 201, the fixed plate 208 is fixedly installed on the driving assembly, the positioning rods 209 are uniformly fixedly installed on the fixed plate 208, and the movable grooves 210 for the positioning rods 209 to move are formed in the cushion plate 6;

[0043] The driving assembly comprises a driven wheel 202, a driving wheel 203, a synchronous belt 204, a connecting plate 205, a sliding rail 206 and a sliding block 207, the driven wheel 202 and the driving wheel 203 are rotatably installed at two ends of the mounting plate 201 through bearings, the driving wheel 203 is connected with a driving device, the driven wheel 202 and the driving wheel 203 are connected through the synchronous belt 204, the sliding rail 206 is fixedly installed on the mounting plate 201, the sliding block 207 is limitingly and slidably connected with the sliding rail 206, and the two ends of the connecting plate 205 are fixedly connected with the synchronous belt 204 and the sliding block 207 respectively; the upper end of the sliding block 207 is fixedly installed with the fixed plate 208;

[0044] The lower side of the cushion plate 6 is fixedly installed with a photoelectric switch 7 for detecting whether there is a packaging bag on the cushion plate 6.

[0045] The two ends of the support frame 102 are each installed with a set of opposite light receiving photoelectric 9, and the two sets of opposite light receiving photoelectric 9 are aligned with each other, and the limiting guide plate 8 is provided with a through groove 10 for avoiding shielding the opposite light receiving photoelectric 9.

[0046] In the present application, the driving motor is started to drive the driving wheel 203 to rotate, the synchronous belt 204 rotates on the driven wheel 202 and the driving wheel 203, and then the connecting plate 205 drives the sliding block 207 to move, the sliding block 207 drives the fixed plate 208 to move horizontally under the limiting action of the sliding rail 206, the positioning rods 209 on the fixed plate 208 move in the movable grooves 210, the positioning rods 209 and the limiting guide plate 8 work cooperatively to realize the limiting work on the packaging bag under the premise of avoiding interfering with the movement of the lead screw linear module 5 and the cushion plate 6, so that the feeding structure can be applied to packaging bags of various sizes, and the applicability of the feeding structure is greatly improved; the lead screw linear module 5 drives the packaging bag to move vertically upward through the cushion plate 6, the two sets of opposite light receiving photoelectric 9 are aligned with each other, so as to sense the height of the packaging bag in the material bin structure, and feedback to the servo of the lead screw linear module 5 to adjust the height of the cushion plate 6, so that the uppermost packaging bag is always located on the material taking reference surface, and the photoelectric switch 7 is used to judge whether there is a packaging bag on the cushion plate 6, for sending a signal to the central control to prompt timely feeding.

[0047] Embodiment 3

[0048] As Figure 3 and 7As shown in FIG. 9, as a preferred embodiment of the present application, an ion fan 11 for eliminating static electricity is fixedly installed on the support frame 102 away from the corner lifting mechanism 3; the top ends of the limiting guide plates 8 are uniformly provided with a plurality of hollows for the movement of the carrying jaw assembly 41.

[0049] The corner lifting mechanism 3 comprises a first stroke cylinder 31, a second stroke cylinder 32, a lifting cylinder 33, a suction disc mounting strip 34, and an adjustable corner lifting suction disc 35. The first stroke cylinder 31 is fixedly installed on the support frame 102. The output end of the first stroke cylinder 31 is fixedly installed with the second stroke cylinder 32. The output end of the second stroke cylinder 32 is fixedly installed with the lifting cylinder 33. The output end of the lifting cylinder 33 is fixedly installed with the suction disc mounting strip 34. The suction disc mounting strip 34 is uniformly provided with a plurality of adjustable corner lifting suction discs 35.

[0050] The moving assembly comprises an X-axis linear module 42, a Y-axis linear module 43, a Z-axis linear module 44, and a suction disc mounting plate 45. The X-axis linear module 42 is fixedly installed on the cross beam 101. The moving end of the X-axis linear module 42 is fixedly installed with the Y-axis linear module 43. The moving end of the Y-axis linear module 43 is fixedly installed with the Z-axis linear module 44. The moving end of the Z-axis linear module 44 is fixedly installed with the suction disc mounting plate 45. The suction disc mounting plate 45 is uniformly provided with a plurality of adjustable carrying suction discs 46.

[0051] The carrying jaw assembly 41 comprises a cylinder adjusting plate 411, a first cylinder 412, a second cylinder 413, a third cylinder 414, a rubber-coated jaw 415, a rubber-coated pressing head 416, a limiting slide rail 417, and a limiting slide block 418. The cylinder adjusting plate 411 is fixedly connected with the suction disc mounting plate 45. The cylinder adjusting plate 411 is fixedly installed with the first cylinder 412. The output end of the first cylinder 412 is fixedly installed with the second cylinder 413. The output end of the second cylinder 413 is fixedly installed with the pressing plate 419.

[0052] The side wall of the second cylinder 413 is fixedly installed with the rubber-coated jaw 415. The upper end of the rubber-coated jaw 415 is fixedly installed with the third cylinder 414. The inner side of the rubber-coated jaw 415 is fixedly installed with the limiting slide rail 417. The limiting slide block 418 is limitingly and slidably connected with the limiting slide rail 417. The limiting slide rail 417 is fixedly installed with the rubber-coated pressing head 416 for clamping the bag opening of the rubber-coated jaw 415. The output end of the third cylinder 414 is fixedly connected with the rubber-coated pressing head 416.

[0053] In the present application, when the packaging bag is located at the material taking reference surface, the pistons of the first stroke cylinder 31 and the second stroke cylinder 32 are simultaneously extended, so that the suction cup mounting strip 34 is moved above the packaging bag, the piston of the lifting cylinder 33 is extended, so that the adjustable angle lifting suction cup 35 grabs the packaging bag, then the piston of the second stroke cylinder 32 is reset to drive the packaging bag to move, and the packaging bag is released to the top end of the limiting guide plate 8, the piston of the lifting cylinder 33 is reset, and the piston of the first stroke cylinder 31 is reset, so that the whole angle lifting mechanism 3 is in a avoiding position, facilitating the movement of the carrying mechanism 4.

[0054] The X-axis linear module 42, the Y-axis linear module 43 and the Z-axis linear module 44 work cooperatively to realize the movement of the suction cup mounting plate 45, drive the suction cup mounting plate 45 to vertically move downward to grab the packaging bag, and at the same time, the carrying clamping jaw assembly 41 sinks to the hollow part of the limiting guide plate 8, the piston of the first cylinder 412 is extended to drive the second cylinder 413 to move, so that the rubber coating clamping jaw 415 is inserted into the inside of the bag opening, the third cylinder 414 is started to drive the rubber coating pressure head 416 to move, and the rubber coating pressure head 416 vertically moves downward under the limiting action of the limiting slide rail 417 and the limiting slide block 418 to clamp the bag opening, the second cylinder 413 drives the pressing plate 419 to vertically move downward to press the bag body, assisting the subsequent operation on the bag body; the rubber coating clamping jaw 415 and the rubber coating pressure head 416 clamp the bag opening, and the adjustable carrying suction cup 46 clamps the packaging bag body, so as to realize the fixation of the packaging bag, avoid the deviation of the packaging bag in the carrying process, and thus ensure the precision of each process.

[0055] The steps of the normal working of the present application are as follows:

[0056] Step one: the limiting mechanism 2 drives the positioning rod 209 to move in the movable groove 210 of the base plate 6, and limits the packaging bag through cooperation of the positioning rod 209 and the limiting guide plate 8; the two groups of light beams photoelectric 9 sense the height of the packaging bag in the material bin structure, and feedback to the servo of the lead screw linear module 5 to adjust the height of the base plate 6, so that the uppermost packaging bag is always located at the material taking reference surface, and the light beam photoelectric switch 7 judges whether there is a packaging bag on the base plate 6, and sends a signal to the central control to prompt timely feeding;

[0057] Step two: the pistons of the first stroke cylinder 31 and the second stroke cylinder 32 are simultaneously extended, the piston of the lifting cylinder 33 is extended, so that the adjustable angle lifting suction cup 35 grabs the packaging bag, the ion fan 11 eliminates static electricity to prevent the bags from adhering together due to static electricity, the piston of the second stroke cylinder 32 is reset to release the packaging bag to the material taking reference surface, and then the piston of the first stroke cylinder 31 is reset, so that the whole angle lifting mechanism 3 is in a avoiding position;

[0058] Step three: the moving assembly drives the adjustable carrying suction cup 46 to grab the packaging bag body, and the carrying clamp jaw assembly 41 sinks through the hollow of the limiting guide plate 8, clamps the front end of the packaging bag mouth, fixes the packaging bag, and then carries it to the heat sealing vacuum equipment.

[0059] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A packaging bag feeding structure for heat sealing of box packaging, comprising a lower frame (1), characterized in that: A support frame (102) is fixedly installed on the lower frame (1), and a crossbeam (101) is fixedly installed on the support frame (102); a lead screw linear module (5) is installed on the lower frame (1) and located between the support frames (102), and a pad (6) for supporting materials is fixedly installed on the moving end of the lead screw linear module (5); a limiting mechanism (2) is provided on the lower side of the pad (6), and a limiting guide sheet metal (8) for limiting the packaging bag in conjunction with the limiting mechanism (2) is fixedly installed on the side wall of the support frame (102); a corner raising mechanism (3) is fixedly installed on the upper end of the support frame (102), and a handling mechanism (4) is fixedly installed on the crossbeam (101); The transport mechanism (4) includes a moving component, an adjustable transport suction cup (46) and a transport gripper assembly (41). The moving component is mounted on the crossbeam (101). Multiple adjustable transport suction cups (46) are mounted on the moving component. The transport gripper assembly (41) is also mounted on one end of the moving component near the corner-raising mechanism (3). An ion fan (11) for eliminating static electricity is fixedly installed on one end of the support frame (102) away from the corner mechanism (3), and multiple cutouts for the movement of the transport gripper assembly (41) are evenly arranged on the top of the limiting guide sheet metal (8). The corner-raising mechanism (3) includes a first-stroke cylinder (31), a second-stroke cylinder (32), a lifting cylinder (33), a suction cup mounting strip (34), and an adjustable corner-raising suction cup (35). The first-stroke cylinder (31) is fixedly mounted on the support frame (102). The output end of the first-stroke cylinder (31) is fixedly mounted with the second-stroke cylinder (32). The output end of the second-stroke cylinder (32) is fixedly mounted with the lifting cylinder (33). The output end of the lifting cylinder (33) is fixedly mounted with the suction cup mounting strip (34). Multiple adjustable corner-raising suction cups (35) are evenly arranged on the suction cup mounting strip (34). The transport gripper assembly (41) includes a cylinder adjusting plate (411), a first cylinder (412), a second cylinder (413), a third cylinder (414), a rubber-coated gripper (415), a rubber-coated pressure head (416), a limiting slide rail (417), and a limiting slider (418). The cylinder adjusting plate (411) is fixedly connected to the moving end of the moving assembly. The first cylinder (412) is fixedly installed on the cylinder adjusting plate (411). The second cylinder (413) is fixedly installed at the output end of the first cylinder (412). The pressure plate (419) is fixedly installed at the output end of the second cylinder (413).

2. The packaging bag feeding structure for heat sealing of Box packaging according to claim 1, characterized in that, The limiting mechanism (2) includes a mounting plate (201), a drive assembly, a fixing plate (208), positioning rods (209), and a movable groove (210). The mounting plate (201) is fixedly mounted on the lower frame (1). The drive assembly is fixedly mounted on the mounting plate (201). The fixing plate (208) is fixedly mounted on the drive assembly. Multiple positioning rods (209) are evenly fixedly mounted on the fixing plate (208). The pad (6) has a movable groove (210) for the positioning rods (209) to move.

3. The packaging bag feeding structure for heat sealing of Box packaging according to claim 2, characterized in that, The drive assembly includes a driven wheel (202), a driving wheel (203), a timing belt (204), a connecting plate (205), a slide rail (206), and a slider (207). The driven wheel (202) and the driving wheel (203) are rotatably mounted on both ends of the mounting plate (201) via bearings. The driving wheel (203) is connected to the drive device. The driven wheel (202) and the driving wheel (203) are connected via the timing belt (204). The slide rail (206) is fixedly mounted on the mounting plate (201). The slider (207) is limited and slidably connected to the slide rail (206). Both ends of the connecting plate (205) are fixedly connected to the timing belt (204) and the slider (207) respectively. A fixing plate (208) is fixedly mounted on the upper end of the slider (207).

4. The packaging bag feeding structure for heat sealing of Box packaging according to claim 3, characterized in that, A photoelectric switch (7) for detecting whether there is a packaging bag on the pad (6) is fixedly installed on the lower side of the pad (6).

5. The packaging bag feeding structure for heat sealing of Box packaging according to claim 4, characterized in that, Each end of the support frame (102) is equipped with a set of photoelectric sensors (9), and the two sets of photoelectric sensors (9) are aligned with each other. The limiting guide sheet metal (8) is provided with a through groove (10) to avoid blocking the photoelectric sensors (9).

6. The packaging bag feeding structure for heat sealing of Box packaging according to claim 5, characterized in that, The moving component includes an X-axis linear module (42), a Y-axis linear module (43), a Z-axis linear module (44), and a suction cup mounting plate (45). The X-axis linear module (42) is fixedly mounted on the crossbeam (101). The moving end of the X-axis linear module (42) is fixedly mounted with the Y-axis linear module (43). The moving end of the Y-axis linear module (43) is fixedly mounted with the Z-axis linear module (44). The moving end of the Z-axis linear module (44) is fixedly mounted with the suction cup mounting plate (45). Multiple adjustable transport suction cups (46) are evenly arranged on the suction cup mounting plate (45).

7. The packaging bag feeding structure for heat sealing of Box packaging according to claim 6, characterized in that, The second cylinder (413) has a rubber-coated gripper (415) fixedly installed on its side wall. The upper end of the rubber-coated gripper (415) has a third cylinder (414) fixedly installed. The inner side of the rubber-coated gripper (415) has a limit slide rail (417) fixedly installed. The limit slider (418) is connected to the limit slide rail (417) for limiting sliding. The limit slide rail (417) has a rubber-coated pressure head (416) fixedly installed on it to cooperate with the rubber-coated gripper (415) to clamp the bag opening. The output end of the third cylinder (414) is fixedly connected to the rubber-coated pressure head (416).

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