Packaging bag sewing device and method

Abstract

The present invention discloses a packaging bag suturing device and method. The device includes a suturing mechanism and a translation mechanism connected to the suturing mechanism. The suturing mechanism includes a suturing needle, a bracket, and a first clamping assembly, a second clamping assembly and a suturing drive mechanism arranged on the bracket. The suturing drive mechanism is connected to the first clamping assembly and the second clamping assembly, and can drive the first clamping assembly and the second clamping assembly to alternately clamp the suturing needle and pass the suturing needle through the packaging bag to achieve the sealing process of the packaging bag. The present invention can use sutures to seal the packaging bag, and the sutures are easier to remove, which improves the opening efficiency of the packaging bag, and also makes the packaging bag reusable, saving costs.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging, and in particular to a packaging bag sewing device and method. Background Art

[0002] Packaging bags are widely used in daily life and industrial production. They are used to package various items so that the items can be easily transported and stored during the production and circulation process. Packaging bags usually need to be sealed during the storage process. In the prior art, some packaging bags are sealed by heat sealing or by mechanical equipment using sutures. Among them, packaging bags sealed by heat sealing need to be destroyed when the items in the packaging bag need to be taken out, making the packaging bags unable to be recycled; and packaging bags sealed by sutures, on the one hand, the sutures are relatively thin, and the sutures are easy to break during transportation, making the packaging bags easy to open. On the other hand, due to the complex winding of the sutures, it is difficult to remove the sutures when the items in the packaging bag need to be taken out, and the packaging bag also needs to be destroyed, which reduces the opening efficiency of the packaging bag and is not conducive to the recycling of the packaging bag. Therefore, there is an urgent need for a packaging bag sewing device that uses sutures to seal the packaging bag while making the sutures easier to remove. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a packaging bag sewing device and method, so that the sewing line of the packaging bag can be removed more easily.

[0004] To achieve the above-mentioned purpose, the present invention proposes the following technical solutions: a packaging bag sewing device, the packaging bag sewing device includes a sewing mechanism and a translation mechanism for driving the sewing mechanism to move, the sewing mechanism includes a bracket, a suture needle, a first clamping assembly, a second clamping assembly and a sewing drive mechanism, the bracket is connected to the translation mechanism, the first clamping assembly and the second clamping assembly are arranged on the bracket for clamping the suture needle; the suture drive mechanism is installed on the bracket and is connected to the first clamping assembly and the second clamping assembly, and is used to drive the first clamping assembly and the second clamping assembly to alternately clamp the suture needle and pass the suture needle through the packaging bag.

[0005] Preferably, the first clamping assembly includes a first base plate, a first jaw, a second jaw and a first jaw guide, the first base plate is movably disposed on a bracket and is connected to a suturing drive mechanism, the first jaw and the second jaw are both pivotally connected to the first base plate and can rotate relative to the first base plate, the first jaw guide is disposed between the first jaw and the second jaw, and is used to act on the first jaw and the second jaw during the process of the first base plate driving the first jaw and the second jaw to move, so that the first jaw and the second jaw clamp or release the suture needle.

[0006] Preferably, a first guide surface is provided on the first jaw guide, and the first guide surface is used to abut against the first jaw and the second jaw during the movement of the first jaw and the second jaw, so that the first jaw and the second jaw clamp or release the suture needle.

[0007] Preferably, the second clamping assembly includes a second base plate, a third jaw, a fourth jaw and a second jaw guide. The second base plate is movably disposed on a bracket and is connected to a suturing drive mechanism. The third jaw and the fourth jaw are both pivotally connected to the second base plate and can rotate relative to the second base plate. The second jaw guide is disposed between the third jaw and the fourth jaw, and is used to act on the third jaw and the fourth jaw during the movement of the third jaw and the fourth jaw driven by the second base plate, so that the third jaw and the fourth jaw clamp or release the suture needle.

[0008] Preferably, a second guide surface is provided on the second jaw guide, and the second guide surface abuts against the third jaw and the fourth jaw during the movement of the third jaw and the fourth jaw, so that the third jaw and the fourth jaw clamp or release the suture needle.

[0009] Preferably, the suturing drive mechanism includes a first turntable, a second turntable, a first connecting member, a second connecting member and a power source, the first turntable and the second turntable are arranged on a bracket and are both connected to the power source, the power source drives the first turntable and the second turntable to rotate synchronously, the first turntable is provided with a first track groove for enabling the first clamping assembly to clamp the suture needle and pass the suture needle through the packaging bag, the second turntable is provided with a second track groove for enabling the second clamping assembly to clamp the suture needle and pass the suture needle through the packaging bag, the first connecting member is pivotally connected to the bracket, and one end of the first connecting member is arranged in the first track groove, and the opposite end is connected to the first clamping assembly, the second connecting member is pivotally connected to the bracket, and one end of the second connecting member is arranged in the second track groove, and the opposite end is connected to the second clamping assembly, the power source is connected to the first turntable and the second turntable, and is used to drive the first turntable and the second turntable to rotate synchronously.

[0010] Preferably, the suture needle includes a needle body portion and a needle tip portion arranged at both ends of the needle body portion, the needle body portion is provided with two threading holes arranged axially at intervals along the needle body portion, each threading hole includes a first thread hole portion and a second thread hole portion that are connected, the first thread hole portion is used for allowing the suture thread to pass through the first thread hole portion of the needle body of the suture needle, and the second thread hole portion is used for clamping the suture thread when the suture needle passes through the packaging bag to prevent the suture thread from slipping out of the threading hole, and the two second thread hole portions are located between the two first thread hole portions.

[0011] Preferably, the translation mechanism includes a screw rod, a screw rod nut and a translation drive mechanism, the screw rod nut is slidably arranged on the screw rod and connected to the bracket, and the translation drive mechanism is connected to any end of the screw rod for driving the screw rod to rotate.

[0012] Preferably, the packaging suturing device further comprises a bag pressing mechanism, which comprises a first pressing assembly and a second pressing assembly arranged on both sides of the packaging bag, wherein the first pressing assembly and the second pressing assembly both comprise a handle and a pressing piece arranged at the end of the handle.

[0013] The present invention also discloses a packaging bag sewing method, which comprises the following steps:

[0014] S100, passing the suture thread through the suture needle, and placing the packaging bag between the first clamping assembly and the second clamping assembly;

[0015] S200, the suturing drive mechanism drives the first clamping assembly to clamp the suturing needle, and further drives one end of the suturing needle to pass through the packaging bag by driving the first clamping assembly. At the same time, the suturing drive mechanism drives the second clamping assembly to clamp the suturing needle to pass through the end of the packaging bag, and further drives the other end of the suturing needle to pass through the packaging bag by driving the second clamping assembly.

[0016] S300, the suturing mechanism moves a preset distance under the action of the translation mechanism, and the suturing drive mechanism drives the second clamping assembly to continue clamping the suturing needle, and further drives one end of the suturing needle to pass through the packaging bag by driving the second clamping assembly. At the same time, the suturing drive mechanism drives the first clamping assembly to clamp the suturing needle to pass through the end of the packaging bag, and further drives the other end of the suturing needle to pass through the packaging bag by driving the first clamping assembly.

[0017] S400, repeating steps S200 to S300 until the packaging bag is sewn.

[0018] The beneficial effects of the present invention are:

[0019] (1) The present invention can use sutures, such as hemp rope, to seal the packaging bag, making it easier to remove the sutures on the packaging bag. When removing the sutures, the sutures only need to be cut at any position of the sutures to pull them out of the packaging bag, thereby improving the efficiency of opening the packaging bag and making the packaging bag reusable, thereby saving costs.

[0020] (2) In the present invention, the process of the first clamping assembly and the second clamping assembly suturing the packaging bag through the suture needle is controlled by the same suturing drive mechanism, thereby ensuring the synchronization of the first clamping assembly and the second clamping assembly clamping and releasing the suture needle and the stability when alternately clamping the suture needle.

[0021] (3) The present invention replaces manual labor by providing a translation mechanism and a sewing mechanism, thereby reducing costs and making the sewing spacing of the packaging bag consistent, thereby avoiding the spacing difference caused by manual sewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a middle suturing mechanism at one angle;

[0024] Figure 3 yes Figure 2 The enlarged schematic diagram of part A in the middle;

[0025] Figure 4 yes Figure 2 The enlarged schematic diagram of part B in the middle;

[0026] Figure 5 yes Figure 1 A three-dimensional schematic diagram of the middle suturing mechanism from another angle;

[0027] Figure 6 yes Figure 2 A three-dimensional schematic diagram of a suture needle;

[0028] Figure 7 yes Figure 1 Enlarged schematic diagram of part C in the middle.

[0029] Reference numerals: 10, translation mechanism, 11, screw rod, 12, screw rod nut, 13, translation drive mechanism, 14, slider, 15, guide rail, 20, suturing mechanism, 21, bracket, 22, suturing needle, 221, needle body, 222, needle tip, 223, threading hole, 223a, first thread hole portion, 223b, second thread hole portion, 23, first clamping assembly, 231, first substrate, 232, first clamping jaw, 233, second clamping jaw, 234, first clamping jaw guide, 234a, first guide surface, 24, second clamping assembly Part, 241, second substrate, 242, third clamping jaw, 243, fourth clamping jaw, 244, second clamping jaw guide, 244a, second guide surface, 25, suturing drive mechanism, 251, first turntable, 251a, first track groove, 252, second turntable, 252a, second track groove, 253, first connecting member, 254, second connecting member, 255, power source, 31, first clamping assembly, 32, second clamping assembly, 30a, handle, 30b, pressing member, a, base portion, b, clamping portion, c, abutment portion. DETAILED DESCRIPTION

[0030] The technical solutions of the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention.

[0031] The present invention discloses a packaging bag sewing device, which uses a suture, such as a hemp rope with a diameter of 3 to 4 mm, to seal the packaging bag, making it easier to remove the suture on the packaging bag. When removing the suture, the suture only needs to be cut at any position of the suture to be pulled out of the packaging bag, thereby improving the opening efficiency of the packaging bag, making the packaging bag reusable and saving costs.

[0032] like Figure 1 As shown, the packaging bag sewing device includes a translation mechanism 10 and a sewing mechanism 20 installed on the translation mechanism 10. The translation mechanism 10 is used to drive the sewing mechanism 20 to move along a first direction X. The sewing mechanism 20 is used to use a sewing thread to seal the opening of the packaging bag M. In this embodiment, the first direction X is the width direction of the opening of the packaging bag.

[0033] Specifically, the translation mechanism 10 includes a screw 11, a screw nut 12 and a translation drive mechanism 13. The screw 11 is extended along the first direction X; the translation drive mechanism 13 is connected to any end of the screw 11 and is used to drive the screw 11 to rotate circumferentially; the screw nut 12 is sleeved on the screw 11 and is connected to the suturing mechanism 20, the screw nut 12 is provided with an internal thread, and the screw 11 is provided with an external thread that matches the internal thread. During implementation, the translation drive mechanism 13 drives the screw 11 to rotate circumferentially, and the screw 11 drives the screw nut 12 to move along the first direction X under the cooperation of the internal and external threads, and the screw nut 12 further drives the suturing mechanism 20 to move, and the suturing mechanism 20 sews the packaging bag during the movement.

[0034] In this embodiment, the translation drive mechanism 13 is preferably a motor. Of course, in other embodiments, other power sources may also be selected to achieve the rotation of the screw rod 11 .

[0035] like Figure 1 As shown, the translation mechanism 10 further includes a guide assembly, which is used to move the suturing mechanism 20 along a preset direction. The guide assembly includes a slider 14 and a guide rail 15 for guiding the slider 14 to slide, the guide rail 15 is extended along the first direction X and is arranged parallel to the screw rod 11; the slider 14 is connected to the suturing mechanism 20. During implementation, the suturing mechanism 20 moves along the first direction X through the cooperation between the slider 14 and the guide rail 15 during the movement process.

[0036] Combination Figure 2 to Figure 5As shown, the suturing mechanism 20 includes a bracket 21, a suturing needle 22, a first clamping assembly 23, a second clamping assembly 24 and a suturing drive mechanism 25. The bracket 21 is connected to both the screw nut 12 and the slider 14; the first clamping assembly 23 and the second clamping assembly 24 are arranged on the bracket 21 at intervals along a second direction Y perpendicular to the first direction X, and the second clamping assembly 24 is located above the first clamping assembly, and both are used to clamp the suturing needle 22; the suturing drive mechanism 25 is installed on the bracket 21, and is connected to both the first clamping assembly 23 and the second clamping assembly 24, and is used to drive the first clamping assembly 23 and the second clamping assembly 24 to alternately clamp the suturing needle and pass the suturing needle through the packaging bag, specifically:

[0037] The suturing drive mechanism 25 drives the first clamping assembly 23 to clamp the suture needle 22 and drives the first clamping assembly 23 to move toward the second clamping assembly 24. The first clamping assembly 23 drives one end of the suture needle 22 to pass through the opening of the packaging bag between the first clamping assembly 23 and the second clamping assembly 24, and at the same time drives the second clamping assembly 24 to move toward the first clamping assembly 23, so that the second clamping assembly 24 clamps the suture needle 22 to pass through the end of the packaging bag, and further drives the second clamping assembly 24 to move away from the first clamping assembly 23, so that the other end of the suture needle 22 passes through the packaging bag. At this point, the first clamping assembly 23 and the second clamping assembly 24 complete the action of alternately clamping the suture needle and passing the suture needle through the packaging bag.

[0038] After the suturing mechanism 20 moves a preset distance under the action of the translation mechanism 10, the suturing drive mechanism 25 drives the second clamping assembly 24 to clamp the suturing needle 22 and drives the second clamping assembly 24 to move toward the first clamping assembly 23, and the second clamping assembly 24 drives one end of the suturing needle 22 to pass through the packaging bag, and at the same time drives the first clamping assembly 23 to move toward the second clamping assembly 24, so that the first clamping assembly 23 clamps the suturing needle 22 to pass through the end of the packaging bag, and further drives the first clamping assembly 23 to move in the direction away from the second clamping assembly 24, so that the other end of the suturing needle 22 passes through the packaging bag. At this point, the first clamping assembly 23 and the second clamping assembly 24 once again complete the action of alternately clamping the suturing needle and putting the suturing needle into the packaging bag.

[0039] After each movement of the suturing mechanism 20 by a preset distance, the first clamping assembly 23 and the second clamping assembly 24 alternately clamp the suturing needle under the action of the suturing drive mechanism 25 and pass the suturing needle through the packaging bag to complete a threading action.

[0040] In this embodiment, the first clamping assembly 23 and the second clamping assembly 24 are controlled by the same suturing drive mechanism, which ensures the synchronization of the first clamping assembly 23 and the second clamping assembly 24 in clamping and releasing the suturing needle and the stability when alternately clamping the suturing needle, and also reduces the complexity and cost of the device. Of course, in other embodiments, corresponding power sources can also be provided for the first clamping assembly 23 and the second clamping assembly 24 to achieve the action of alternately clamping the suturing needle and passing the suturing needle through the packaging bag.

[0041] like Figure 6 As shown, the suture needle 22 includes a needle body 221 and a needle tip 222 disposed at both ends of the needle body 221. The needle tip 222 is a cone structure, which is convenient for piercing the opening of the packaging bag. The needle body 221 is also provided with two threading holes 223 arranged axially and spaced apart from each other along the needle body 221. The two threading holes 223 are preferably symmetrically arranged. Each threading hole 223 includes a first thread hole portion 223a and a second thread hole portion 223b that are connected. The two second thread hole portions 223b are arranged close to each other. The first thread hole portion 223a is used for allowing the suture thread to pass through the needle body 221 of the suture needle 22, and the second thread hole portion 223b is used for clamping the suture thread during the process of the suture needle passing through the packaging bag to prevent the suture thread from slipping out of the threading hole 223.

[0042] like Figure 3 As shown, the first clamping assembly 23 includes a first substrate 231, a first clamping jaw 232, a second clamping jaw 233 and a first clamping jaw guide 234. The first substrate 231 is movably arranged on the bracket 21, and the first substrate 231 can be movably installed on the bracket 21 through the structure in which the slider 14 cooperates with the slide rail; the first clamping jaw 232 and the second clamping jaw 233 are both pivotally connected to the first substrate 231 and can pivot relative to the first substrate 231, and the first clamping jaw 232 and the second clamping jaw 233 both include a base portion a pivotally connected to the first substrate 231 and a clamping portion b and a contact portion c respectively arranged at both ends of the base portion a; the first clamping jaw guide 234 is arranged between the first clamping jaw 232 and the second clamping jaw 233, and is provided with a first guide surface 234a for making the clamping portion b of the first clamping jaw 232 and the clamping portion b of the second clamping jaw 233 approach or move away from each other during the movement of the first clamping jaw 232 and the second clamping jaw 233. During implementation, the first substrate 231 drives the first clamping jaw 232 and the second clamping jaw 233 to move under the action of the suturing drive mechanism 25, and the abutting portion c of the first clamping jaw 232 and the second clamping jaw 233 further abuts against the first guide surface 234a, and under the action of the first guide surface 234a, the base portion a of the first clamping jaw 232 and the second clamping jaw 233 can pivot relative to the first substrate 231, so that the clamping portion b of the first clamping jaw 232 and the clamping portion b of the second clamping jaw 233 can be close to or away from each other. When they are close, the suture needle 22 can be clamped, and when they are away, the suture needle 22 can be released.

[0043] like Figure 4 As shown, the second clamping assembly 24 includes a second base plate 241 , a third clamping jaw 242 , a fourth clamping jaw 243 and a second clamping jaw guide 244 . Among them, the second substrate 241 is movably arranged on the bracket 21, and the second substrate 241 can be movably installed on the bracket 21 through a structure in which a slider cooperates with a slide rail; the third clamping jaw 242 and the fourth clamping jaw 243 are both pivotally connected to the second substrate 241 and can pivot relative to the second substrate 241, and the third clamping jaw 242 and the fourth clamping jaw 243 both include a base portion a pivotally connected to the second substrate 241 and a clamping portion b and abutting portion c respectively arranged at both ends of the base portion a; the second clamping jaw guide 244 is arranged between the third clamping jaw 242 and the fourth clamping jaw 243, and is provided with a second guide surface 244a for making the clamping portion b of the third clamping jaw 242 and the clamping portion b of the fourth clamping jaw 243 approach or move away from each other during the movement of the third clamping jaw 242 and the fourth clamping jaw 243. During implementation, the second substrate 241 drives the third jaw 242 and the fourth jaw 243 to move under the action of the suturing drive mechanism 25, and the moving abutment portion c of the third jaw 242 and the fourth jaw 243 further abuts against the second guide surface 244a, and under the action of the second guide surface 244a, the moving base portion a of the third jaw 242 and the fourth jaw 243 can pivot relative to the second substrate 241, so that the clamping portion b of the third jaw 242 and the clamping portion b of the fourth jaw 243 can approach or move away from each other. When approaching, the suture needle can be clamped, and when moving away, the suture needle can be released.

[0044] Combination Figure 2 and Figure 5As shown, the suturing driving mechanism 25 includes a first rotating disk 251, a second rotating disk 252, a first connecting member 253, a second connecting member 254 and a power source 255. The first rotating disk 251 and the second rotating disk 252 are mounted on the bracket 21, the first rotating disk 251 is located on one side of the bracket 21, the second rotating disk 252 is located on the other side of the bracket 21, and the two are coaxially arranged, the first rotating disk 251 is provided with a first track groove 251a, the second rotating disk 252 is provided with a second track groove 252a, the first connecting member 253 is pivotally connected to the bracket 21 and is arranged on the same side as the first rotating disk 251, one end of the first connecting member 253 is arranged in the first track groove 251a, and the opposite end is connected to the first substrate 231, and the second connecting member 25 The second connecting member 254 is pivotally connected to the bracket 21 and is arranged on the same side as the second rotating disk 252. One end of the second connecting member 254 is arranged in the second track groove 252a, and the opposite end is connected to the second base plate 241. The first track groove 251a is used to enable the first clamping assembly 23 to clamp the suture needle and allow the suture needle to pass through the packaging bag, and the second track groove 252a is used to enable the second clamping assembly 24 to clamp the suture needle and allow the suture needle to pass through the packaging bag. The power source 255 is connected to both the first rotating disk 251 and the second rotating disk 252, and is used to drive the first rotating disk 251 and the second rotating disk 252 to rotate synchronously.

[0045] During implementation, the power source 255 drives the first rotating disk 251 and the second rotating disk 252 to rotate synchronously, the first rotating disk 251 acts on the first substrate 231 through the first connecting member 253, the first connecting member 253 drives the first substrate 231 to move under the action of the first track groove 251a, and the first clamping jaw 232 and the second clamping jaw 233 clamp the suture needle and pass one end of the suture needle through the packaging bag during the movement of the first substrate 231; at the same time, the second rotating disk 252 acts on the second substrate 241 through the second connecting member 254, the second connecting member 254 drives the second substrate 241 to move under the action of the second track groove 252a, and the third clamping jaw 242 and the fourth clamping jaw 243 clamp the suture needle and pass one end of the suture needle through the packaging bag during the movement of the second substrate 241. In this embodiment, the power source 255 is preferably a motor.

[0046] like Figure 1 As shown, the packaging suturing device also includes a bag pressing mechanism, which includes a first pressing assembly 31 and a second pressing assembly 32 arranged on both sides of the packaging bag, and the first pressing assembly 31 and the second pressing assembly 32 both include a handle 30a and a pressing member 30b arranged at the end of the handle 30a, and the handle 30a is arranged on a workbench, and the middle part of the handle 30a is pivotally connected to the workbench. During implementation, the free end of the handle 30a is pressed to lift the other end of the handle 30a provided with the pressing member 30b, and a gap is generated between the pressing member 30b and the workbench during the lifting of the handle 30a, so that the packaging bag can be placed in the gap; after the handle 30a is reset, the pressing member 30b can press the packaging bag to achieve the compression of the packaging bag.

[0047] The working principle of the packaging bag sewing device of the present invention is as follows:

[0048] First, the packaging bag M is compressed by using the first compression component 31 and the second compression component 32 to prevent the packaging bag M from moving during the sewing process;

[0049] Secondly, the suture thread is passed through the suture needle 22, and the suture needle 22 is clamped in the first clamping assembly 23. The first clamping assembly 23 clamps the suture needle 22 under the action of the suture driving mechanism 25. The suture driving mechanism 25 further drives the suture needle 22 to move toward the second clamping assembly 24 along a second direction perpendicular or approximately perpendicular to the first direction by driving the first clamping assembly 23. After the first clamping assembly 23 moves into place, one end of the suture needle 22 passes through the opening of the packaging bag. At the same time, the second clamping assembly 24 clamps the end of the suture needle 22 that passes through the opening of the packaging bag under the action of the suture driving mechanism 25 and continues to move upward, so that the other end of the suture needle 22 passes through the opening of the packaging bag.

[0050] Again, after the suturing mechanism 20 moves forward a preset distance, such as 50 to 80 mm, under the action of the translation drive mechanism 13, the second clamping assembly 24 drives the suturing needle 22 to move toward the first clamping assembly 23 under the action of the suturing drive mechanism 25. After the second clamping assembly 24 moves into place, one end of the suturing needle 22 passes through the opening of the packaging bag. At the same time, the first clamping assembly 23 clamps the suturing needle 22 under the action of the suturing drive mechanism 25 and continues to move upward so that the other end of the suturing needle 22 passes through the opening of the packaging bag.

[0051] Finally, the above process is repeated to seal the packaging bag. In the sealed packaging bag, the suture line is wavy as a whole. Therefore, the suture line can be pulled out of the packaging bag by simply cutting the suture line at any position of the suture line.

[0052] The technical contents and technical features of the present invention have been disclosed as above. However, those skilled in the art may still make various substitutions and modifications based on the teachings and disclosures of the present invention without departing from the spirit of the present invention. Therefore, the protection scope of the present invention should not be limited to the contents disclosed in the embodiments, but should include various substitutions and modifications that do not depart from the present invention and are covered by the claims of this patent application.

Claims

1. A packaging bag sewing device, characterized in that: The packaging bag suturing device comprises a suturing mechanism and a translation mechanism for driving the suturing mechanism to move, the suturing mechanism comprises a bracket, a suturing needle, a first clamping assembly, a second clamping assembly and a suturing driving mechanism, the bracket is connected to the translation mechanism, the first clamping assembly and the second clamping assembly are arranged on the bracket for clamping the suturing needle; the suturing needle comprises a needle body portion, on which a first thread hole portion and a second thread hole portion connected to each other are arranged at intervals, the first thread hole portion is used for allowing a suture thread to pass through the first thread hole portion of the needle body of the suture needle, and the second thread hole portion is used for clamping the suture thread during the process of the suture needle passing through the packaging bag to prevent the suture thread from slipping out of the threading hole; The suturing drive mechanism is installed on the bracket and is connected with the first clamping assembly and the second clamping assembly, and is used to drive the first clamping assembly and the second clamping assembly to alternately clamp the suture needle and pass the suture needle through the packaging bag. The suturing drive mechanism includes a first turntable, a second turntable, a first connecting member, a second connecting member and a power source. The power source drives the first turntable and the second turntable to rotate synchronously. The first turntable is provided with a first track groove for the first clamping assembly to clamp the suture needle and pass the suture needle through the packaging bag. The second turntable is provided with a second track groove for the second clamping assembly to clamp the suture needle and pass the suture needle through the packaging bag. The first connecting member is pivotally connected to the bracket, and one end of the first connecting member is arranged in the first track groove, and the opposite end is connected to the first clamping assembly. The second connecting member is pivotally connected to the bracket, and one end of the second connecting member is arranged in the second track groove, and the opposite end is connected to the second clamping assembly.

2. The packaging bag sewing device according to claim 1, characterized in that: The first clamping assembly includes a first base plate, a first jaw, a second jaw and a first jaw guide. The first base plate is movably disposed on a bracket and is connected to a suturing drive mechanism. The first jaw and the second jaw are both pivotally connected to the first base plate and can rotate relative to the first base plate. The first jaw guide is disposed between the first jaw and the second jaw and is used to act on the first jaw and the second jaw during the movement of the first base plate driving the first jaw and the second jaw, so that the first jaw and the second jaw clamp or release the suturing needle.

3. The packaging bag sewing device according to claim 2, characterized in that: The first jaw guide is provided with a first guide surface, and the first guide surface is used to abut against the first jaw and the second jaw during the movement of the first jaw and the second jaw, so that the first jaw and the second jaw clamp or release the suture needle.

4. The packaging bag sewing device according to claim 1, characterized in that: The second clamping assembly includes a second base plate, a third jaw, a fourth jaw and a second jaw guide. The second base plate is movably disposed on a bracket and is connected to a suturing drive mechanism. The third jaw and the fourth jaw are both pivotally connected to the second base plate and can rotate relative to the second base plate. The second jaw guide is disposed between the third jaw and the fourth jaw and is used to act on the third jaw and the fourth jaw during the movement of the third jaw and the fourth jaw driven by the second base plate, so that the third jaw and the fourth jaw clamp or release the suturing needle.

5. The packaging bag sewing device according to claim 4, characterized in that: The second jaw guide is provided with a second guide surface, and the second guide surface is used to abut against the third jaw and the fourth jaw during the movement of the third jaw and the fourth jaw, so that the third jaw and the fourth jaw clamp or release the suture needle.

6. The packaging bag sewing device according to claim 1, characterized in that: The first rotating disk and the second rotating disk are arranged on the bracket and are both connected to the power source.

7. The packaging bag sewing device according to claim 1, characterized in that: The suture needle also includes a needle tip portion arranged at both ends of the needle body, and the needle body is provided with two threading holes arranged axially and spaced apart from each other along the needle body, each threading hole includes a first thread hole portion and a second thread hole portion that are connected, and the two second thread hole portions are located between the two first thread hole portions.

8. The packaging bag sewing device according to claim 1, characterized in that: The translation mechanism includes a screw rod, a screw rod nut and a translation driving mechanism. The screw rod nut is slidably arranged on the screw rod and connected to the bracket. The translation driving mechanism is connected to any end of the screw rod and is used to drive the screw rod to rotate.

9. The packaging bag sewing device according to claim 1, characterized in that: The packaging suturing device also includes a bag pressing mechanism, which includes a first pressing assembly and a second pressing assembly arranged on both sides of the packaging bag. The first pressing assembly and the second pressing assembly both include a handle and a pressing piece arranged at the end of the handle.

10. A packaging bag sewing method based on the packaging bag sewing device according to claim 1, characterized in that: The method comprises the following steps: S100, passing the suture thread through the suture needle, and placing the packaging bag between the first clamping assembly and the second clamping assembly; S200, the suturing drive mechanism drives the first clamping assembly to clamp the suturing needle, and further drives one end of the suturing needle to pass through the packaging bag by driving the first clamping assembly. At the same time, the suturing drive mechanism drives the second clamping assembly to clamp the suturing needle to pass through the end of the packaging bag, and further drives the other end of the suturing needle to pass through the packaging bag by driving the second clamping assembly. S300, the suturing mechanism moves a preset distance under the action of the translation mechanism, the suturing drive mechanism drives the second clamping assembly to continue clamping the suturing needle, and further drives one end of the suturing needle to pass through the packaging bag by driving the second clamping assembly, and at the same time, the suturing drive mechanism drives the first clamping assembly to clamp the suturing needle to pass through the end of the packaging bag, and further drives the other end of the suturing needle to pass through the packaging bag by driving the first clamping assembly; S400, repeating steps S200 to S300 until the packaging bag is sewn.

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