Middle-seal staggered bag mouth bonding device with bag mouth leveling function

Abstract

The utility model relates to the field of paper bag making machines, and discloses a middle sealing dislocation bag opening bonding device with a bag opening flushing function, which comprises a mold, an outer wrapping side inserting plate, an inner lapping side inserting plate, a fixed bag removing belt and an inner inserting bag removing belt, the mold can move up and down to press the bag body sheet material; the outer packing side inserting plates drive the outer packing side pieces of the bag body to be folded inwards; the inner lapping side inserting plate drives the inner inserting side sheet with the lapping side on the side edge to be folded inwards; in the second stroke process of the inner inserting bag removing belt or after the second stroke process of the inner inserting bag removing belt, the fixed bag removing belt has power for driving the fixed face of the bag body to move downwards so as to provide force for downwards moving the outer wrapping side piece, and the top of the inner side of the inserting opening is flush with the top of the inner inserting side piece. According to the utility model, the action of leveling the bag mouth can be completed by utilizing the fixed bag removing belt necessary for self demolding, and the action of the bag removing belt can be completed only by an extra stroke, so that the cost of additionally arranging a bag mouth leveling part is greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper bag making machine field especially with bag mouth flush function's middle seal misplacement bag mouth bonding device. BACKGROUND

[0002] The middle seal paper bag needs to be pasted in the state that the bag body is U-shaped, and the side edges on both sides are pasted, and the fixed surface and the moving surface of the bag body need the bag type of the bag mouth, cannot be directly pasted, and need to insert the inner insertion side piece of each side into the outer package side piece, and then realize the pasting by abutting. The existing technology does not work on the surface of the bag body when the mold is pressed down, or is used to brake the bag body when the mold is pressed down. The bag body of the middle seal needs to use other rigid push block objects to push the inner insertion side piece of one side to the obliquely downward and then return to realize the insertion, and such structure realizes the insertion of the inner insertion side piece into the insertion structure, which is complex, and because the rigid push block directly contacts the top surface of the inner insertion side piece, the bag is very easy to be damaged. After the bag body is formed by the existing technology, the bag body plane is parallel to the mold, the four side edges of the bag body are on the outside of the four side edges of the mold, the side surface of the mold needs to be provided with a device and a groove for the bag body side surface to be poked inward, and when the bag is removed, the bag body side surface needs to be poked inward by means of the tool for poking inward, so that the bag body is deformed and then separated from top to bottom.

[0003] In addition, the mold and the paper bag are easy to deviate, and it is difficult to completely align in the horizontal direction, so that the inner insertion side piece and the outer package side piece on both sides are not flush after the mold is pressed down with the paper bag, especially when the outer package side piece is higher, because the inner insertion side piece can only return to the original position after the misaligned insertion, and cannot move to a higher position under the block of the mold, so there is a gap between the top of the insertion between the outer package side piece and the folded mouth piece and the inner insertion side piece, and after the side surface is fixed, the bag mouth and the bag mouth side edge are all inclined, which affects the appearance and the quality of the bag body.

[0004] In order to solve the problems of complex insertion structure, high cost and low efficiency of the middle seal paper bag in the prior art, and the damage of the bag body in the insertion and demolding process, a middle seal misplacement bag mouth bonding device with bag mouth flush function is needed. UTILITY MODEL CONTENTS

[0005] The utility model discloses a middle seal misplacement bag mouth bonding device with bag mouth flush function, which solves the problems of complex insertion structure, high cost and low efficiency of the middle seal paper bag in the prior art, and the damage of the bag body in the insertion and demolding process.

[0006] The utility model solves the above technical problems by the following technical scheme:

[0007] The device comprises a mold, an outer package side inserting plate, an inner lap side inserting plate, a fixed bag removing belt and an inner inserting bag removing belt. The mold can be lifted to press the bag body sheet downward. The outer package side inserting plate drives the outer package side sheet of the bag body to fold inward through y-axis direction movement or arc movement. The inner lap side inserting plate drives the inner inserting side sheet with lap side to fold inward through y-axis direction movement or arc movement. The fixed bag removing belt contacts with the fixed surface. The opposite side of the fixed surface of the bag body is the moving surface. The outer package side sheet is connected to the both sides of the fixed surface. The inner inserting side sheet is connected to the both sides of the moving surface in x-axis direction. The tongue inserting plate makes the tongue sheet of the bag body fold upward through touching.

[0008] The inner inserting bag removing belt contacts with the moving surface. When the inner inserting bag removing belt rotates, it drives the moving surface of the bag body to move through friction force, so that the inner inserting side sheet connected to the both sides of the moving surface moves up and down. The inner inserting bag removing belt has a first stroke of forward rotation, so that the top edge of the inner inserting side sheet is lower than the bottom edge of the top sheet of the outer package side sheet. When the inner inserting bag removing belt is in the first stroke or the second stroke, the outer package side inserting plate keeps outside the outer package side sheet. The inner surface of the outer package side inserting plate contacts with the top sheet, and keeps the state that the outer package side sheet and the top sheet have an inserting opening therebetween. It provides enough space for the inner inserting side sheet to insert into the inserting opening, and ensures the smoothness of the inserting process.

[0009] The inner inserting bag removing belt has a second stroke of upward movement after the first stroke, which drives the moving surface of the bag body to move, so that the inner inserting side sheet is inserted into the inserting opening formed between the outer package side sheet and the top sheet from bottom to top. The flexible transmission of the belt replaces the rigid push block, so that the damage rate is greatly reduced. Moreover, the action can be completed by using the structure necessary for demolding itself, only with slight difference in the positions of the outer package side inserting plate and the inner lap side inserting plate, and additional stroke of the belt. Therefore, the cost of additionally setting the inserting opening device is greatly saved, the inserting opening efficiency is improved, and the damage rate of the bag body is also reduced.

[0010] The fixed bag removing belt has a driving force to drive the fixed surface of the bag body to move downward during or after the second stroke of the inner inserting bag removing belt, so as to provide a force for the outer package side sheet to move downward, and make the top of the inner side of the inserting opening and the top of the inner inserting side sheet flush. The action of making the bag opening flush can be completed by using the fixed bag removing belt necessary for demolding itself, only with additional stroke of the action of the bag removing belt. Therefore, the cost of additionally setting the bag opening flush component is greatly saved. The problems of the bag body shape skewing and the side lap not being vertical caused by the bag opening not being flush in the prior art can be solved, so that the formed bag body is more beautiful.

[0011] As preferred, the friction coefficient of the fixed debagging belt is less than that of the inner debagging belt, or the distance between the fixed debagging belt and the outer surface of the mold is greater than that between the inner debagging belt and the outer surface of the mold. Due to such arrangement, the top of the spout between the outer bag side panel and the cuff panel can be driven by the fixed debagging belt after the inner bag side panel is inserted, and the friction force provided to the bag by the fixed debagging belt is less than that provided by the inner debagging belt, so that the fixed debagging belt can slip with the bag, avoiding further downward movement of the bag fixing surface.

[0012] As preferred, the fixed debagging belt and the inner debagging belt each have at least two, and the at least two fixed debagging belts contact and move synchronously with the two side edges of the bag fixing surface.

[0013] As preferred, before the inner bag side panel is inserted into the spout, the outer bag side insertion plate and the inner bag side insertion plate are kept outside the outer bag side panel and the inner bag side panel. Such arrangement not only prevents the outer bag side panel and the inner bag side panel from being pushed out, but also avoids hindering the insertion of the inner bag side panel and the collision between the inner bag side panel and the inner bag side panel or the cuff panel, ensuring smooth insertion.

[0014] As preferred, the contact area between the outer bag side insertion plate and the outer bag side panel is less than the area of the outer bag side panel. The outer bag side panel is not completely covered by the outer bag side insertion plate, providing space for the cuff panel outside the outer bag side panel to be outwardly curved, so that the size of the spout is sufficient for the insertion of the inner bag side panel on the other side.

[0015] As preferred, when the inner bag side insertion plate contacts the inner bag side panel, the lap edge keeps from contacting the mold. This avoids excessive pressing of the inner bag side panel towards the mold, which can cause the inner bag side panel to collide with the outer bag side panel during downward or upward movement.

[0016] As preferred, the friction force between the moving surface and the inner debagging belt is greater than the friction force between the inner surface of the moving surface and the mold. This ensures that the inner debagging belt can effectively drive the moving surface and the inner bag side panel to move, achieving the action of the inner bag side panel moving downward or being inserted into the spout.

[0017] As preferred, the friction force between the fixed surface and the fixed debagging belt is greater than the friction force between the inner surface of the fixed surface and the mold. This ensures that the fixed debagging belt can drive the fixed surface to move, and in turn drive the inner bag side panel to move, while achieving the pre-deformation of the bag, facilitating subsequent demolding.

[0018] As preferred, the side surface of the mold is provided with a joint plate, which can move along the y-axis direction to approach or move away from the mold. This helps to bond the middle seal of the bag, improving the forming quality of the bag.

[0019] As preferred, the board is retracted away from the mold after being pressed in the paper bag closing position, and then the inner insertion bag stripping belt has a third stroke of forward rotation, and the fixed bag stripping belt rotates synchronously to drive the adhered bag body to be separated from the mold downward. The same set of components can drive the adhered bag body to be separated from the mold downward. The design realizes automatic demolding of the bag body, eliminates the need for additional bag poking tools, simplifies the demolding process, and improves production efficiency.

[0020] The utility model discloses a bag body forming device, which has the following remarkable technical effects:

[0021] The utility model discloses can dispense with the bag body when separating from the mold and poke demolding, and the traditional bag body is formed, and the shape between the standing bag body and the mold is almost same, needs to the bag body inwards and pokes the bag body to make the bag body deformation, and then utilizes the fixed bag stripping belt to take out the bag body from top to bottom from the mold. But the utility model discloses because the fixed bag stripping belt has driven the fixed surface to move in the process that the inner insertion side piece inserts the insertion port previously, plays the role of the predeformation of a bag body, the preadjusting bag body posture, and the state between the mold is not completely parallel, and even if additional bag poking is not had, demolding can be easily completed in the subsequent demolding process.

[0022] Because the fixed bag stripping belt is contacted with the fixed surface, the fixed bag stripping belt is not contacted with the inner insertion side piece directly, can drive the inner insertion side piece, can convert the vertical motion of the fixed bag stripping belt into the slightly inclined action of the inner insertion side piece, and because the fixed bag stripping belt and the bag body fixed surface are flexible contact, the inner insertion side piece is also driven to move due to the existence of friction when moving, and it generally will not collide with the outer package side piece before inserting the insertion port, even if there is collision, the belt friction transmission replaces the mechanical push block, and the flexible contact will not produce the force that damages or even destroys the bag body.

[0023] By using the component that originally functions in the bag stripping step, the fixed bag stripping belt and the inner insertion bag stripping belt are relatively moved in different steps to produce the relative motion between the inner insertion side piece and the outer package side piece, realize bagging, which not only saves equipment cost but also has better bagging and pasting effect. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the structure schematic view of the utility model at one side of the staggered bagging and adhering device before the outer package side plate and the inner coupling side plate are folded.

[0025] Figure 2 It is the structure schematic view of the utility model at one side of the staggered bagging and adhering device before the outer package side plate and the inner coupling side plate are folded. Figure 1 It is the partial enlarged view of A in the utility model.

[0026] Figure 3 It is the structure schematic view of the utility model from another angle. Figure 1 It is the structure schematic view of the utility model from another angle.

[0027] Figure 4 is Figure 3 is a partial enlarged view of B in FIG. 6;

[0028] Figure 5 is a structure schematic view of one side of the utility model in the process of up and down staggered bagging after the completion of the first stroke of the inner plug bag stripping belt;

[0029] Figure 6 is Figure 5 is a structure schematic view from another angle;

[0030] Figure 7 is Figure 6 is a partial enlarged view of C in FIG. 7;

[0031] Figure 8 is a structure schematic view of one side of the utility model in the process of completing bagging but before bag stripping.

[0032] The part names referred to by the numbers in the above drawings are as follows: wherein, 61, mold; 62, outer bagging side plug plate; 63, inner lapping side plug plate; 64, fixed bag stripping belt; 65, inner plug bag stripping belt; 66, combined plate; 67, folded tongue plug plate; 90, bag body piece material; 91, outer bagging side piece; 92, inner plug side piece; 93, fixed surface; 94, moving surface; 95, plug opening; 96, folded opening piece; 97, folded tongue piece. DETAILED DESCRIPTION

[0033] The utility model will be further described in detail below in combination with the drawings and examples.

[0034] Example 1

[0035] The middle sealing staggered bagging adhesive device with bag opening flush function is as follows: Figures 1-4As shown, including the mold 61, the outer side of the plug-in plate 62, the inner side of the plug-in plate 63, the fixed bagging belt 64 and the inner plug-in bagging belt 65, the mold 61 can be lifted to press the bag body sheet 90; The outer side of the bag body is folded inward by the movement or arc movement of the y-axis direction of the outer side of the plug-in plate 62; The inner side of the plug-in plate 63 is folded inward by the movement or arc movement of the y-axis direction, and the inner side of the plug-in plate 63 is folded inward by the movement or arc movement of the y-axis direction. The tongue plug-in plate 67 is folded upward by touching the tongue piece 97 of the bag body; The touch can be that the mold 61 is pressed to make the tongue piece 97 of the bag body contact the tongue plug-in plate 67 to make the tongue piece 97 of the bag body fold upward, or the tongue plug-in plate 67 is inserted to make the tongue piece 97 of the bag body fold upward. The fixed bagging belt 64 contacts the fixed surface 93, the opposite side of the fixed surface 93 of the bag body is the moving surface 94, the fixed surface 93 is connected with the outer side of the sheet 91 on both sides of the x-axis direction, and the moving surface 94 is connected with the inner side of the sheet 92 on both sides of the x-axis direction. Wherein, the movement of the y-axis direction is that the inner side of the plug-in plate 63 or the outer side of the plug-in plate 62 moves horizontally in the direction parallel to the surface thereof, so that the side sheet of the paper bag is folded inward, and the arc movement is that the inner side of the plug-in plate 63 or the outer side of the plug-in plate 62 is folded inward in the hinge type.

[0036] The fixed bagging belt 64 has the power to drive the fixed surface 93 of the bag body to move downward during the second stroke of the inner plug-in bagging belt 65 or after the end, so as to provide the force for the outer side of the sheet 91 to move downward, so that the inner top of the socket 95 is flush with the top of the inner plug-in side sheet 92.

[0037] The friction coefficient of the fixed bagging belt 64 is smaller than that of the inner plug-in bagging belt 65, or the distance between the fixed bagging belt 64 and the outer surface of the mold 61 is greater than that between the inner plug-in bagging belt 65 and the outer surface of the mold 61.

[0038] The fixed bagging belt 64 and the inner plug-in bagging belt 65 respectively have at least two, and at least two fixed bagging belts 64 contact and move synchronously with the two sides of the fixed surface 93 of the bag body.

[0039] The inner plug-in bagging belt 65 contacts the moving surface 94, and when the inner plug-in bagging belt 65 rotates, the moving surface 94 of the bag body is driven to move by friction, so that the inner plug-in side sheet 92 connected on both sides of the moving surface 94 moves up and down. The inner plug-in bagging belt 65 has a first stroke of forward rotation, so that the height of the top edge of the inner plug-in side sheet 92 is lower than the bottom edge of the gusset piece 96 of the top of the outer side of the sheet 91; The inner plug-in bagging belt 65 has a second stroke of upward movement after the end of the first stroke, which drives the moving surface 94 of the bag body to move, so that the inner plug-in side sheet 92 is inserted into the socket 95 formed between the outer side of the sheet 91 and the gusset piece 96 from bottom to top.

[0040] Wherein, the bag body main sheet is the sheet of the front side and the rear side of the bag body, the outer surface of the bag body main sheet on one side is the fixed surface 93, and the outer surface of the bag body main sheet on the other side is 94.

[0041] Before the inner side panel 92 is inserted into the slot 95, the outer side panel 62 and the inner side panel 63 are kept outside the outer side panel 91 and the inner side panel 92. During the first or second stroke of the inner side panel 92, the outer side panel 62 is kept outside the outer side panel 91, and the inner surface of the outer side panel 62 is in contact with the gusset 96, and the outer side panel 91 and the gusset 96 are kept in the state with the slot 95.

[0042] The friction between the moving surface 94 and the inner side panel 92 is greater than the friction between the inner surface of the moving surface 94 and the mold 61. The friction between the fixed surface 93 and the inner side panel 92 is greater than the friction between the inner surface of the fixed surface 93 and the mold 61.

[0043] As shown in Figures 5-8 The side of the mold 61 is provided with a cover plate 66, which can move along the y-axis direction to approach or move away from the mold 61. After the cover plate 66 approaches the mold 61 to press the sealed part of the paper bag, it retreats away from the mold 61, and then the inner side panel 92 has a third stroke of forward rotation, and the fixed side panel 64 rotates synchronously, driving the adhered bag body to move downward away from the mold 61.

[0044] As one of the embodiments, the contact area between the outer side panel 62 and the outer side panel 91 is smaller than the area of the outer side panel 91. When the inner side panel 63 is in contact with the inner side panel 92, the gusset 921 is kept from contacting the mold 61.

[0045] The distance between the outer side panel 62 and the outer side panel 91, and the contact area between the outer side panel 91 and the outer side panel 91 determine the size of the slot opening. Therefore, the forward and backward and left and right strokes of the outer side panel 62 need to be properly adjusted, and the inner insertion position of the inner side panel 63 and the distance from the mold are coordinated, so that the inner side panel 92 can smoothly move downward and then upward, and can be smoothly inserted into the slot.

[0046] Specific working steps:

[0047] 1. Bag body panel placement: The bag body panel 90 is placed below the mold 61, and the bag body panel 90 includes the outer side panel 91, the inner side panel 92, the fixed surface 93 and the moving surface 94.

[0048] 2. Mold pressing: The mold 61 is lowered to press the bag body panel 90, and the bag body is initially formed into a U-shaped form.

[0049] 3. The side piece is folded: the relative movement between the tongue insertion plate 67 and the tongue piece 97 makes the tongue piece 97 fold upwards, and the inner lap side insertion plate 63 and the outer package side insertion plate 62 respectively pass through the y-axis direction movement, drive the outer package side piece 91 and the inner insertion side piece 92 to fold inward, and the tongue insertion plate 67 moves downward to retreat before the outer package side insertion plate 62 and the inner lap side insertion plate 63 complete the folding.

[0050] 4. The inner insertion side piece is inserted into the insertion port: the inner insertion bag removal belt 65 first rotates a first stroke in the forward direction, so that the height of the top edge of the inner insertion side piece 92 is lower than the bottom edge of the gusset piece 96 at the top of the outer package side piece 91; then the inner insertion bag removal belt 65 moves upward for a second stroke, drives the moving surface 94 of the bag body to move, so that the inner insertion side piece 92 is inserted into the insertion port 95 formed between the outer package side piece 91 and the gusset piece 96 from bottom to top. In this process, the fixed bag removal belt 64 rotates synchronously, drives the fixed surface 93 to move, and realizes the pre-deformation of the bag body.

[0051] 5. The bag opening is leveled: the fixed bag removal belt 64 has the power to drive the fixed surface 93 of the bag body to move downward during or after the second stroke of the inner insertion bag removal belt 65, if the bag opening is originally flush, the fixed bag removal belt 64 provides the force to move the outer package side piece 91 downward, but the outer package side piece 91 does not move, and after the inner insertion side piece 92 is inserted into the insertion port in the last step, it will naturally touch the top inside of the insertion port 95, if the outer package side piece 91 is originally higher than the inner insertion side piece 92 on one side, the fixed bag removal belt 64 provides the force to move the outer package side piece 91 downward to make the top inside of the insertion port 95 flush with the top of the inner insertion side piece 92.

[0052] 6. The middle seal is pressed: the combined plate 66 moves along the y-axis direction to approach the mold 61, and the middle seal of the paper bag is pressed to make the middle seal adhere.

[0053] 7. Demolding: the combined plate 66 retreats away from the mold 61, the inner insertion bag removal belt 65 has a third stroke of rotating in the forward direction, and the fixed bag removal belt 64 rotates synchronously to drive the adhered bag body to move downward and separate from the mold 61.

[0054] The mold, the outer package side insertion plate, the inner lap side insertion plate, the tongue insertion plate and the combined plate 66 can all be driven to move by a cylinder, a motor or a cylinder and a motor through gear and rack cooperation, screw and nut cooperation and sliding block guide cooperation, and the rotation of the inner insertion bag removal belt 65 and the fixed bag removal belt 64 can be driven by a motor to rotate a synchronous wheel, so that the belt sleeved on the synchronous wheel rotates, and the driving device is a conventional setting for persons skilled in the art. The above is only one embodiment, and other modes are not described here. In summary, the patent solves the problems in the prior art through ingenious structure design and reasonable action cooperation, improves the production quality and efficiency of the bag body, and has remarkable beneficial effects.

[0055] In the description of the utility model, need understanding is, the orientation or position relation that the terms "center", "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer" indicate is based on the orientation or position relation shown in the drawing, the extension direction of x axle direction is bag body piece material fold tongue piece fold crease line, the direction of y axle direction is the connecting line direction of the bag mouth of bag body piece material two sides, y axle direction is perpendicular to x axle direction, x axle direction y axle direction all are in horizontal plane. Figure 1 、 3 、5、6、8 in order to show the bag body state, only draw one side of the processing component, the component of the other side is not drawn, but represents no other side without processing component. Only for the convenience of describing the utility model and simplifying the description, and not indicating or suggesting that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, therefore can not be understood as the limitation of the utility model. In addition, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or suggesting relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.

[0056] In summary, the above only for the preferred embodiment of the utility model, all changes and modifications made according to the patent range of the utility model application, should belong to the scope of the utility model patent.

Claims

1. A device for bonding the bag opening of a center-seal misaligned bag opening with a flush bag opening function, characterized in that, Comprising a mold (61) that can be moved up and down to press the bag piece (90) down; a fixed bag removing belt (64) that is in contact with the fixed surface (93) of the bag, the opposite side of the fixed surface (93) of the bag is the moving surface (94), the x-axis direction of the two sides of the fixed surface (93) is connected with the outer wrapping side piece (91) respectively, the x-axis direction of the two sides of the moving surface (94) is connected with the inner inserting side piece (92) respectively; an inner side inserting plate (63) that drives the inner inserting side piece (92) with the folding edge (921) to fold inward through the y-axis direction movement or arc movement; an outer side inserting plate (62) that drives the outer wrapping side piece (91) of the bag to fold inward through the y-axis direction movement or arc movement; a tongue folding plate (67) that makes the tongue piece (97) of the bag fold upward through touching; an inner inserting bag removing belt (65) that is in contact with the moving surface (94) of the bag, when the inner inserting bag removing belt (65) rotates, it drives the moving surface (94) of the bag to move through friction, so that the inner inserting side piece (92) moves up and down, the inner inserting bag removing belt (65) has a first stroke of forward rotation, which makes the top edge of the inner inserting side piece (92) lower than the bottom edge of the gusset piece (96) of the top of the outer wrapping side piece (91); the inner inserting bag removing belt (65) has a second stroke of upward movement after the first stroke ends, which drives the moving surface (94) of the bag to move, so that the inner inserting side piece (92) is inserted into the insertion port (95) formed between the outer wrapping side piece (91) and the gusset piece (96) from bottom to top; when the inner inserting bag removing belt (65) is in the first stroke or the second stroke, the inner surface of the outer side inserting plate (62) is in contact with the gusset piece (96) and keeps the state that the insertion port (95) is formed between the outer wrapping side piece (91) and the gusset piece (96); the fixed bag removing belt (64) has a driving force to drive the fixed surface (93) of the bag to move downward during or after the second stroke of the inner inserting bag removing belt (65), so as to provide a force for the outer wrapping side piece (91) to move downward, so that the top inside of the insertion port (95) is flush with the top of the inner inserting side piece (92).

2. The device for sealing and misaligning the bag opening with the function of bag opening flush according to claim 1, characterized in that: The friction coefficient of the fixed bag removing belt (64) is smaller than that of the inner inserting bag removing belt (65), or the distance between the fixed bag removing belt (64) and the outer surface of the mold (61) is greater than that between the inner inserting bag removing belt (65) and the outer surface of the mold (61).

3. The device for bonding the bag opening of a center-seal misaligned bag opening with a flush function according to claim 1 or 2, characterized in that: The fixed bag removing belt (64) and the inner inserting bag removing belt (65) each have at least two, and the at least two fixed bag removing belts (64) are in contact with and move synchronously with the two sides of the fixed surface (93) of the bag.

4. The device for sealing and misaligning the bag opening according to claim 1, wherein: Before the inner inserting side piece (92) is inserted into the insertion port (95), the outer side inserting plate (62) and the inner side inserting plate (63) are kept outside the outer wrapping side piece (91) and the inner inserting side piece (92).

5. The device for sealing and misaligning the bag opening according to claim 1, wherein: The contact area between the outer side inserting plate (62) and the outer wrapping side piece (91) is smaller than the area of the outer wrapping side piece (91).

6. The device for sealing and misaligning the bag opening according to claim 1, wherein: When the inner side inserting plate (63) is in contact with the inner inserting side piece (92), the folding edge (921) is kept from contacting the mold (61).

7. The device for bonding the bag opening of a center-seal misaligned bag with a function of bag opening flushness according to claim 1, characterized in that The friction between the moving surface (94) and the inner insertion bag removing belt (65) is greater than the friction between the inner surface of the moving surface (94) and the mold (61).

8. The device for bonding the bag opening of a center-seal misaligned bag with a function of bag opening flushness according to claim 1, characterized in that The friction between the fixed surface (93) and the fixed bag removing belt (64) is greater than the friction between the inner surface of the fixed surface (93) and the mold (61).

9. The device for bonding the bag opening of a center-seal misaligned bag with a function of bag opening flushness according to claim 1, characterized in that The side surface of the mold (61) is provided with a joint plate (66), which can move along the y-axis direction to approach or move away from the mold (61).

10. The device for bonding the bag opening of a center-seal misaligned bag with a flush function according to claim 9, wherein The joint plate (66) retreats away from the mold (61) after pressing the middle seal of the paper bag, and then the inner insertion bag removing belt (65) has a third stroke of forward rotation, and the fixed bag removing belt (64) rotates synchronously, driving the adhered bag body to move downward away from the mold (61).

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