Adaptive adjustable insertion knife mechanism and pocket opening machine

Abstract

An adaptive adjustable insertion knife mechanism, comprising : a base (100) on which a lead screw (1) is mounted, wherein threads at two ends of the lead screw are in opposite directions, and nuts (2) are respectively screwed into the two ends of the lead screw; two long-side moving seats (13), which are respectively connected below the two nuts, wherein a first long-side insertion knife assembly is connected below one of the two long-side moving seats, and a second long-side insertion knife assembly is connected below the other of the two long-side moving seats; the first long-side insertion knife assembly, which comprises a first front insertion knife (7) and a first rear insertion knife (16) that have knife surfaces parallel to each other; and the second long-side insertion knife assembly, which comprises a second front insertion knife (8) and a second rear insertion knife that have knife surfaces parallel to each other. The first long-side insertion knife assembly and the second long-side insertion knife assembly jointly form an insertion knife for long folded edges; and the length of the "complete" insertion knife is changed by means of moving the first long-side insertion knife assembly and the second long-side insertion knife assembly closer to or away from each other, without the need to replace a tool. Further provided is a pocket opening machine comprising said insertion knife mechanism.

Description

Adaptive and adjustable insert mechanism and bag opening machine Technical Field

[0001] This invention belongs to the technical field of fabric feeding or feeding mechanisms used in sewing pockets, and particularly relates to an adaptive adjustable inserting knife mechanism and a pocket opening machine. Background Technology

[0002] A pocket-opening machine is a sewing device used to make pockets in clothing. When sewing a pocket, an opening is typically made in the garment first, then the fabric at the opening is folded over, and finally the pocket fabric is placed inside for sewing. During the opening process, two long folds and two short folds are formed on the garment. Then, a knife on an inserting mechanism inserts the long and short folds into a folding plate below, and finally, the folding plate completes the folding process.

[0003] However, the length of the insert knife in the existing bag opening machine is fixed. One size insert knife is only suitable for folding edges with a similar length range. It cannot be used for folding edges of different lengths. When folding edges of bags of different sizes, insert knives of different sizes need to be installed, which is time-consuming and labor-intensive. Summary of the Invention

[0004] This invention provides an adaptive and adjustable inserting knife mechanism and a bag opening machine, which can adapt to the folding process of bags of various sizes.

[0005] The adaptive adjustable insert mechanism provided in this application includes:

[0006] A base on which a lead screw is mounted, the threads at both ends of the lead screw having opposite directions, and a nut screwed into each end of the lead screw;

[0007] Two long-side movable seats are respectively connected to the bottom of the two nuts. One of the two long-side movable seats is connected to the bottom of the first long-side insert knife assembly, and the other is connected to the bottom of the second long-side insert knife assembly.

[0008] The first long-side inserting knife assembly includes a first front inserting knife and a first rear inserting knife with parallel blade surfaces, and the upper inner corner of the blade surfaces of the first front inserting knife and the first rear inserting knife is recessed.

[0009] The second long-side inserting knife assembly includes a second front inserting knife and a second rear inserting knife with parallel blade surfaces, and the upper inner corner of the blade surfaces of the second front inserting knife and the second rear inserting knife is recessed.

[0010] Wherein, the first front insert blade and the second front insert blade are arranged side by side on the same plane and their inner sides are connected; the first rear insert blade and the second rear insert blade are arranged side by side on the same plane and their inner sides are connected.

[0011] Alternatively, the blades of the first and second front insert blades are in contact with each other, and the blades of the first and second rear insert blades are in contact with each other.

[0012] In one embodiment, the first front inserter, the first rear inserter, the second front inserter, and the second rear inserter are connected to the long side movable seat via a cylinder.

[0013] In one embodiment, the adaptive adjustable insert mechanism further includes:

[0014] Two short-side movable seats are respectively connected to the bottom of the two nuts. One of the two short-side movable seats is connected to the bottom of the first short-side insert, and the other is connected to the bottom of the second short-side insert.

[0015] The first short-side insert and the second short-side insert are connected to the short-side movable seat by a cylinder;

[0016] The first short-side insert is located outside the first front insert and the first rear insert, and the second short-side insert is located outside the second front insert and the second rear insert.

[0017] In one embodiment, the adaptive adjustable insert mechanism further includes:

[0018] A first connecting plate includes a first end and a second end. The first end of the first connecting plate is connected upward to a nut on the lead screw. An elongated adjustment hole is provided on the second end of the first connecting plate. The length direction of the adjustment hole is parallel to the axial direction of the lead screw.

[0019] The short side movable seat is connected to the second end of the first connecting plate, and the positional relationship between the short side movable seat and the first connecting plate can vary within the length range of the adjustment hole;

[0020] The long-side movable seat is also connected to the first connecting plate.

[0021] In one embodiment, the lower surface of the base is provided with two rows of parallel guide rails.

[0022] Two sliders are installed on the upper surface of the long side movable seat, and two sliders are also installed on the upper surface of the short side movable seat.

[0023] The sliders on the upper surfaces of both the long-side movable seat and the short-side movable seat are mounted on the guide rail.

[0024] In one embodiment, the nut comprises:

[0025] The cylinder body is provided with a threaded hole that mates with the lead screw;

[0026] An end plate is provided with a threaded hole that mates with the lead screw, and several through holes are provided on the left and right sides of the threaded hole; the end plate is located at one end of the cylinder, and the axis of the threaded hole of the cylinder and the threaded hole of the end plate coincide;

[0027] The first connecting plate has an arc groove at its first end, which accommodates the cylinder, and the first connecting plate has several through holes at its first end.

[0028] The end plate and the first connecting plate are connected by a connecting nut passing through a through hole in the end plate and a through hole in the first connecting plate.

[0029] In one embodiment, the first long-side insert assembly includes:

[0030] Two cylinder connecting seats are connected one in front of the other below the long side movable seat, and the cylinders are connected to the opposite sides of the two cylinder connecting seats.

[0031] The long-side inserter holder includes a vertical plate and a horizontal plate. The horizontal plate is located in the middle of one side of the vertical plate and is horizontally arranged. The horizontal plate is connected to the output end of the cylinder. The lower end of the vertical plate is connected to a first front inserter or a first rear inserter.

[0032] In one embodiment, a lifting slider is provided on the base, which enables the base to move up and down along a lifting track.

[0033] In one embodiment, the adaptive adjustable insert mechanism further includes:

[0034] A limit sensor is installed on the nut.

[0035] This application also provides a bag opening machine, comprising: the adaptive adjustable inserting knife mechanism described above.

[0036] The adaptive adjustable insert mechanism provided by this invention includes: a base on which a lead screw is mounted, the threads at both ends of the lead screw having opposite directions, and a nut screwed into each end of the lead screw; two long-side movable seats, each connected below the two nuts, one of the two long-side movable seats connected below a first long-side insert assembly, and the other connected below a second long-side insert assembly; the first long-side insert assembly includes a first front insert and a first rear insert with parallel blades; the second long-side insert assembly includes a second front insert and a second rear insert with parallel blades. In this application, the first and second long-side insert assemblies together constitute a long-folded insert. By moving the first and second long-side insert assemblies closer together or further apart, the length of the "complete" insert is changed, thus adapting to the folding requirements of pockets of different sizes without replacing the blades.

[0037] Furthermore, the upper inner corners of the blade surfaces of the first front insert and the first rear insert are recessed, as are the upper inner corners of the blade surfaces of the second front insert and the second rear insert, so that when the first long-side insert assembly and the second long-side insert assembly intersect, the blade surfaces of the first front insert and the second front insert are offset, and the blade surfaces of the first rear insert and the second rear insert are offset, thus minimizing the occurrence of blade collisions.

[0038] Furthermore, the first front insert blade and the second front insert blade are arranged side by side on the same plane and their inner sides are connected, and the first rear insert blade and the second rear insert blade are arranged side by side on the same plane and their inner sides are connected; or, the blade surfaces of the first front insert blade and the second front insert blade are in contact with each other, and the blade surfaces of the first rear insert blade and the second rear insert blade are in contact with each other, thereby ensuring that the fabric at the pocket opening can be neatly inserted below during the hemming process.

[0039] This application also provides a bag opening machine, which includes the above-mentioned adaptive adjustable inserting knife mechanism. Therefore, it can at least achieve the technical effect of adapting to the folding requirements of different sized pockets without replacing the knife. Furthermore, when the first long-side inserting knife assembly and the second long-side inserting knife assembly are intersected, the occurrence of knife collision can be avoided as much as possible. More importantly, it can ensure that the fabric at the pocket opening can be neatly inserted to the bottom during the folding process. Attached Figure Description

[0040] Figure 1 is a schematic diagram of the adaptive adjustable inserter mechanism in Embodiment 1 of this application.

[0041] Figure 2 is a structural schematic diagram of the long-side movable seat and the first long-side insert assembly in Embodiment 1 of this application.

[0042] Figure 3 is a structural schematic diagram of the short-side movable seat and the second short-side insert in Embodiment 1 of this application.

[0043] Figure 4 is a structural schematic diagram of the lead screw and nut components in Embodiment 1 of this application. Detailed Implementation

[0044] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. The principles and features of the present invention are described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0045] Example 1

[0046] When sewing a pocket, an opening is typically made in the garment first, then the fabric at the opening is folded over, and finally the pocket fabric is placed inside for sewing. During the opening process, two long folds and two short folds are formed on the garment, and then the adaptive and adjustable inserting mechanism provided in this embodiment inserts the long and short folds sequentially downwards.

[0047] Referring to Figures 1 to 4, the adaptive adjustable insert mechanism includes:

[0048] A base 100 is provided, on which a lead screw 1 is mounted. The threads at both ends of the lead screw 1 are in opposite directions, and a nut 2 is screwed into each thread at both ends of the lead screw 1.

[0049] Two long-side movable seats 13, one long-side movable seat 13 is connected to the lower part of the nut 2 on the left side, and the other long-side movable seat 13 is connected to the lower part of the nut 2 on the right side (see Figure 1 for left and right directions). The first long-side insert knife assembly is connected to the lower part of the long-side movable seat 13 on the left side (see Figure 1 for left and right directions), and the second long-side insert knife assembly is connected to the lower part of the long-side movable seat 13 on the right side (see Figure 1 for left and right directions).

[0050] The first long-side insert knife assembly includes a first front insert knife 7 and a first rear insert knife 16 with parallel blade surfaces, and the upper inner corners of the blade surfaces of the first front insert knife 7 and the first rear insert knife 16 are recessed.

[0051] The second long-side insert knife assembly includes a second front insert knife 8 and a second rear insert knife with parallel blade surfaces, and the upper inner corners of the blade surfaces of the second front insert knife 8 and the second rear insert knife are recessed.

[0052] The inner side refers to the middle of the first long-side insert knife assembly and the second long-side insert knife assembly; the structure, position, and connection structure of the first long-side insert knife assembly and the second long-side insert knife assembly with respect to the center line between them are symmetrically arranged.

[0053] Among them, the first front insert blade 7 and the second front insert blade 8 are arranged side by side on the same plane and their inner sides are connected; the first rear insert blade 16 and the second rear insert blade are arranged side by side on the same plane and their inner sides are connected.

[0054] Alternatively, the blades of the first front inserter 7 and the second front inserter 8 are in contact with each other, and the blades of the first rear inserter 16 and the second rear inserter are in contact with each other.

[0055] In this embodiment, the first long-side insert knife assembly and the second long-side insert knife assembly together constitute a "complete" insert knife for folding down the long folded edge. By moving the first long-side insert knife assembly and the second long-side insert knife assembly closer to or further away from each other, the length of the "complete" insert knife can be changed. Therefore, the folding requirements of different sized pockets can be adapted without replacing the knife.

[0056] Furthermore, the lead screw 1 drive features a simple structure, high precision, and self-locking capability, enabling precise movement of the first and second long-side insert assemblies and effectively "fixing" them. Through the opposing threads at both ends of the lead screw 1, the relative displacements of the first and second long-side insert assemblies are synchronized, making the adjustment process simple.

[0057] Furthermore, the upper inner corners of the blade surfaces of the first front insert blade 7 and the first rear insert blade 16 are recessed, as are the upper inner corners of the blade surfaces of the second front insert blade 8 and the second rear insert blade. This ensures that when the first long-side insert blade assembly and the second long-side insert blade assembly intersect, the blade surfaces of the first front insert blade 7 and the second front insert blade 8 are offset, and the blade surfaces of the first rear insert blade 16 and the second rear insert blade are offset, thereby minimizing the occurrence of blade collisions.

[0058] Furthermore, the first front insert 7 and the second front insert 8 are arranged side by side on the same plane and their inner sides are connected, and the first rear insert 16 and the second rear insert are arranged side by side on the same plane and their inner sides are connected. At this time, the length of the "complete" insert formed by folding down the long folded edge is the longest.

[0059] Alternatively, the blades of the first and second front insert blades are in contact with each other, and the blades of the first and second rear insert blades are in contact with each other. The larger the contact area, the shorter the length of the "complete" insert blade that folds down the long edge.

[0060] By seamlessly joining or bonding, the blade of the "complete" inserter used for folding down the long hem is kept flat, thus ensuring that the fabric at the pocket opening can be neatly inserted downwards during the hem-folding process.

[0061] In this embodiment, the first front inserter 7, the first rear inserter 16, the second front inserter 8, and the second rear inserter are connected to the long side moving seat 13 via a cylinder 4. In this implementation, the first front inserter 7, the first rear inserter 16, the second front inserter 8, and the second rear inserter can be driven downwards by the output end of the cylinder 4 to insert the long folded edge downwards.

[0062] In this embodiment, the adaptive adjustable insert mechanism further includes:

[0063] Two short-side movable seats 3, the left short-side movable seat 3 is connected to the bottom of the left nut 2, and the right short-side movable seat 3 is connected to the bottom of the right nut 2; the bottom of the left short-side movable seat 3 is connected to the first short-side insert 17, and the bottom of the right short-side movable seat 3 is connected to the second short-side insert 6.

[0064] The first short-side insert 17 is connected to the left short-side moving seat 3 via the cylinder 4, and the second short-side insert 6 is connected to the right short-side moving seat 3 via the cylinder 4; (refer to Figure 1 for left and right directions);

[0065] The first short-side insert 17 is located outside the first front insert 7 and the first rear insert 16, and the second short-side insert 6 is located outside the second front insert 8 and the second rear insert.

[0066] In this embodiment, the width of the first short-side insert 17 is greater than the distance between the first front insert 7 and the first rear insert 16; the width of the second short-side insert 6 is greater than the distance between the second front insert 8 and the second rear insert, so as to facilitate inserting the folded edge at the opening into the corresponding folded edge plate.

[0067] When sewing the pocket, after opening the garment, two opposite long folds and two opposite short folds are formed. The adaptive and adjustable inserting mechanism provided in this embodiment inserts the long folds and short folds into the bottom in sequence.

[0068] This embodiment provides an implementation method for connecting the long-side insert and the short-side insert: an adaptive adjustable insert mechanism, further comprising:

[0069] The first connecting plate 9 includes a first end and a second end. The first end of the first connecting plate 9 is connected upward to the nut 2 on the lead screw 1. The second end of the first connecting plate 9 is provided with an elongated adjustment hole 92. The length direction of the adjustment hole 92 is parallel to the axis of the lead screw 1.

[0070] The short-side movable seat 3 is connected to the second end of the first connecting plate 9, and the positional relationship between the short-side movable seat 3 and the first connecting plate 9 can vary within the length range of the adjustment hole; in a more specific embodiment: the short-side movable seat 3 is connected to the second end of the first connecting plate 9 by an adjusting nut (not shown in the figure), the adjusting nut passes through the adjustment hole 91, and the position of the adjusting nut in the length direction of the adjustment hole 91 determines the positional relationship between the short-side movable seat 3 and the first connecting plate 9;

[0071] The long-side movable seat 13 is also connected to the first connecting plate 9. In a more specific embodiment, a connecting end 12 is folded out on the outer edge of the long-side movable seat 13 and connected to the first connecting plate 9 through the connecting end 12.

[0072] Through the above implementation method, the short-side moving seat 3 and the long-side moving seat 13 move synchronously, thus making the adjustment process simple and quick. The positional relationship between the short-side moving seat 3 and the long-side moving seat 13 is adjustable, thereby appropriately increasing the applicability of the adaptive adjustable insert mechanism provided in this embodiment.

[0073] In this embodiment, in order to further stabilize the positions of the side moving seat 13 and the short side moving seat 13 on the base, two rows of parallel guide rails are provided on the lower surface of the base 100.

[0074] Two sliders 11 are installed on the upper surface of the long side movable seat 13, and two sliders 11 are also installed on the upper surface of the short side movable seat 3.

[0075] The sliders 11 on the upper surfaces of both the long-side movable seat 13 and the short-side movable seat 13 are mounted on the guide rail.

[0076] In this embodiment, nut 2 includes:

[0077] The cylinder 22 is provided with a threaded hole that mates with the lead screw 1;

[0078] The end plate 21 is provided with a threaded hole that mates with the lead screw 1, and several through holes are provided on the left and right sides of the threaded hole; the end plate 21 is located at one end of the cylinder 22, and the axis of the threaded hole of the cylinder 22 and the threaded hole of the end plate 21 coincide.

[0079] A circular arc groove 91 is provided on the first end of the first connecting plate 9, which accommodates the cylinder 22. Several through holes are provided on the first end of the first connecting plate 91.

[0080] The end plate 22 and the first connecting plate 9 are connected by a connecting nut passing through a through hole on the end plate 22 and a through hole on the first connecting plate 9.

[0081] In this embodiment, the first long-side insert assembly includes:

[0082] Two cylinder connecting seats 18 are connected to the lower part of the long side movable seat 13, one in front of the other. The cylinder 4 is connected to the opposite side of the two cylinder connecting seats 18.

[0083] The long-side inserter holder includes a vertical plate 15 and a horizontal plate 14. The horizontal plate 14 is located in the middle of one side of the vertical plate 15 and is horizontally arranged. The horizontal plate 14 is connected to the output end of the cylinder 4. The lower end of the vertical plate 15 is connected to the first front inserter 7 or the first rear inserter 16.

[0084] The surface of vertical board 15 is vertical, and the surface of horizontal board 14 is horizontal.

[0085] The front and rear positions of the cylinder connecting seat 18 on the long side moving seat 13 are adjustable, specifically through the oblong hole, so as to adapt to openings of different widths.

[0086] To ensure stability during the up-and-down movement, in this embodiment, a guide rail slider mechanism is provided between the cylinder connecting seat 18 and the long-side insert tool holder.

[0087] In this embodiment, a lifting slider 10 is provided on the base 100, which enables the base 100 to move up and down along the lifting track.

[0088] In this embodiment, the adaptive adjustable insert mechanism further includes:

[0089] A limit sensor is installed on nut 2. When nut 2 is detected to be close to the limit sensor, the limit sensor is triggered, and the lead screw 1 stops rotating and the long side moving seat 13 stops moving, thereby preventing the first long side inserting knife assembly and the second long side inserting knife assembly from moving to their extreme positions.

[0090] Example 2

[0091] This embodiment provides a bag opening machine, which includes the adaptive adjustable inserting knife mechanism provided in embodiment 1. Therefore, it can at least achieve the technical effect of adapting to the folding requirements of different sized pockets without replacing the knife. Furthermore, when the first long-side inserting knife assembly and the second long-side inserting knife assembly are intersected, the occurrence of knife collision can be avoided as much as possible. More importantly, it can ensure that the fabric at the pocket opening can be neatly inserted to the bottom during the folding process.

[0092] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0093] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0094] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0095] In the description of this specification, the references to "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0096] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An adaptive adjustable chaser mechanism characterized by, The utility model relates to a cutting machine, including: Base, the base is set up with screw rod, the opposite direction of the screw thread of both ends of screw rod, the screw thread of both ends of screw rod is screwed into a nut respectively; Two long side moving seats, two long side moving seats are connected below two nuts respectively, one below first long side insert cutter assembly is connected in two long side moving seats, and the other below second long side insert cutter assembly is connected; The first long side insert cutter assembly, including the first front insert cutter and the first rear insert cutter of mutually parallel knife face, the first front insert cutter and the first rear insert cutter are recessed on the inside upper angle of knife face; The second long side insert cutter assembly, including the second front insert cutter and the second rear insert cutter of mutually parallel knife face, the second front insert cutter and the second rear insert cutter are recessed on the inside upper angle of knife face; Wherein, the first front insert cutter and the second front insert cutter are parallel in the same plane and the inside of both sides is connected, and the first rear insert cutter and the second rear insert cutter are parallel in the same plane and the inside of both sides is connected; Or, the knife face of first front insert cutter and second front insert cutter is in close contact, and the knife face of first rear insert cutter and second rear insert cutter is in close contact.

2. The self-adapting adjustable insert mechanism of claim 1, wherein, The first front insert cutter, the first rear insert cutter, the second front insert cutter and the second rear insert cutter are connected on the long side moving seat through the air cylinder.

3. The self-adapting adjustable insert mechanism of claim 2, wherein, Also including: Two short side moving seats, two short side moving seats are connected below two nuts respectively, one below first short side insert cutter is connected in two short side moving seats, and the other below second short side insert cutter is connected; The first short side insert cutter and the second short side insert cutter are connected on the short side moving seat through the air cylinder; Wherein, the first short side insert cutter is located on the outside of the first front insert cutter and the first rear insert cutter, and the second short side insert cutter is located on the outside of the second front insert cutter and the second rear insert cutter.

4. The self-adapting adjustable insert mechanism of claim 3, wherein, Also including: First connecting plate, including first end and second end, the first end of first connecting plate is connected with the nut on the screw rod upwards, the second end of first connecting plate is provided with long strip shape adjusting hole, the length direction of adjusting hole is parallel with the axial direction of screw rod; The position relation of short side moving seat and first connecting plate can be changed in the length range of adjusting hole; The long side moving seat is also connected on the first connecting plate.

5. The self-adapting adjustable insert mechanism of claim 4, wherein, The lower surface of base is provided with two rows of mutually parallel guide rails; The upper surface of long side moving seat is installed with two sliders, and the upper surface of short side moving seat is also installed with two sliders; The sliders on the upper surfaces of long side moving seat and short side moving seat are installed on the guide rails.

6. The self-adapting adjustable insert mechanism of claim 4, wherein, The nut, including: Cylinder, provided with threaded hole matched with screw rod; End plate, provided with threaded hole matched with screw rod, a plurality of through holes are arranged on the left and right sides of threaded hole;The end plate is arranged at one end of the cylinder, and the threaded hole of the cylinder and the threaded hole of the end plate are coaxial; The first end of first connecting plate is provided with circular arc groove, the circular arc groove contains the cylinder, and a plurality of through holes are arranged on the first end of first connecting plate; The end plate and first connecting plate are connected by connecting nut passing through the through hole on the end plate and the through hole of first connecting plate.

7. The self-adapting adjustable insert mechanism of claim 2, wherein, The first long-side insert tool assembly comprises: Two cylinder connecting seats connected below the long-side moving seat in front and back, and connected with the cylinder on opposite sides; The long-side insert tool holder comprises a vertical plate and a horizontal plate, the horizontal plate is located in the middle of one side of the vertical plate and is arranged horizontally, the horizontal plate is connected with the output end of the cylinder, and the lower end of the vertical plate is connected with the first front insert tool or the first rear insert tool.

8. The self-adapting adjustable insert mechanism of claim 1, wherein, A lifting slider is arranged on the base, and the base can be lifted along the lifting track through the lifting slider.

9. The self-adapting adjustable insert mechanism of claim 1, wherein, Further comprising: A limit sensor is installed on the nut.

10. A bag opener characterized in that The adaptive adjustable insert tool mechanism of any one of claims 1 to 9.

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