Packaging bag opening shaping and folding mechanism

Abstract

The packaging bag opening shaping and folding mechanism comprises a bag inserting driving assembly arranged on a bottom plate, a bag folding driving assembly is arranged on the bag inserting driving assembly, and a first straightening assembly and a second straightening assembly are arranged on one side face of the bag folding driving assembly. The bag folding driving assembly drives the first straightening assembly and the second straightening assembly to be close to each other or separated from each other, a first inward folding assembly and a second inward folding assembly are arranged on the two sides of the first straightening assembly and the two sides of the second straightening assembly respectively, and the first inward folding assembly and the second inward folding assembly are in driving connection with the bag folding driving assembly. The packaging bag shaping and folding device has the advantages of being good in shaping and folding effect, high in shaping and folding efficiency and high in shaping and folding precision on packaging bags, the sealing efficiency and effect of packaging bag openings are improved, the storage space of food packaging bags can be reduced, and the food packaging bags can be conveniently transported and stored; and the defect that the two ends of the bag opening protrude outwards due to flattening and shaping of the bag opening of a traditional packaging bag, and bagging storage and transportation of the food packaging bag are not facilitated is overcome.

Description

Technical Field

[0001] The utility model relates to the field of packaging folding machines, in particular to a packaging bag opening shaping and folding mechanism. Background Art

[0002] In order to facilitate food storage and transportation, it is generally necessary to package food. Currently, most of the food packaging on the market is mainly prepared by flattening one end of the packaging bag and then welding it with an ultrasonic machine. The packaging bag sealing method of flattening one end of the packaging bag and then welding it with an ultrasonic machine causes the bag opening of the food packaging to protrude outward at both ends, thereby occupying space. This bag sealing method is not only not conducive to bagging and preserving the food packaging, but also not conducive to transporting and storing the food packaging. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a packaging bag opening shaping and folding mechanism.

[0004] In order to solve the above technical problems, the utility model adopts the following technical scheme: the packaging bag mouth shaping and folding mechanism comprises a bottom plate, a bag insertion driving assembly is provided on the bottom plate, a bag folding driving assembly is provided on the bag insertion driving assembly, a first straightening assembly and a second straightening assembly are respectively provided on one side of the bag folding driving assembly, the bag folding driving assembly drives the first straightening assembly and the second straightening assembly to move closer to or separate from each other, a first inner folding assembly and a second inner folding assembly are respectively provided on both sides of the first straightening assembly and the second straightening assembly, the first inner folding assembly and the second inner folding assembly are drivingly connected to the bag folding driving assembly, and the bag folding driving assembly drives the first inner folding assembly and the second inner folding assembly to move closer to or separate from each other.

[0005] Preferably, the bag insertion drive assembly includes a first linear sliding module and a second linear sliding module respectively installed on both ends of the base plate, a first servo motor is provided under the base plate, a first pulley kit is provided on the base plate, the first pulley kit is provided with a first active synchronous wheel and a first driven synchronous wheel, the first active synchronous wheel is drivingly connected to the first driven synchronous wheel through a first synchronous belt, a first reducer is provided on the output shaft of the first servo motor, the first servo motor is drivingly connected to the first active synchronous wheel through the first reducer, a moving platform is provided across the first linear sliding module and the second linear sliding module, a first belt clamp is provided under the moving platform, the first belt clamp is fixedly connected to the first synchronous belt, and the first synchronous belt is drivingly connected to the moving platform through the first belt clamp.

[0006] By adopting the above-mentioned technical solution, the first servo motor drives the first active synchronous wheel to rotate forward and reversely through the first reducer. The first active synchronous wheel rotating forward and reversely cooperates with the first driven synchronous wheel to drive the first synchronous belt and then drives the mobile platform to make linear reciprocating movement or forward and backward movement on the first linear sliding module and the second linear sliding module, so that the first straightening component, the second straightening component, the first inner folding component and the second inner folding component can make linear reciprocating movement or forward and backward movement together with the movement of the pocket insertion drive component.

[0007] Preferably, the bag folding drive assembly includes a first module mounting plate vertically arranged on the mobile platform, a second servo motor and a third servo motor are provided on one side of the first module mounting plate, a second reducer is provided on the output shaft of the second servo motor, and a third reducer is provided on the output shaft of the third servo motor; a third linear sliding module and a fourth linear sliding module are provided on the other side of the first module mounting plate, a second pulley kit is provided on one side of the third linear sliding module, the second pulley kit is provided with a second active synchronous wheel and a second driven synchronous wheel, the second active synchronous wheel is connected to the second driven synchronous wheel by a second synchronous belt, a third pulley kit is provided on one side of the fourth linear sliding module, the third pulley kit is provided with a third active synchronous wheel and a third driven synchronous wheel, the third active synchronous wheel is connected to the third driven synchronous wheel by a third synchronous belt; the third linear sliding module consists of a slide rail and a plurality of sliders, and the fourth linear sliding module also consists of a slide rail and a plurality of sliders.

[0008] Preferably, the first straightening component includes a second module mounting plate connected and installed with sliders on the third linear sliding module and the fourth linear sliding module respectively, the second module mounting plate slides on the slide rail of the third linear sliding module through the slider of the third linear sliding module, and the second module mounting plate slides on the slide rail of the fourth linear sliding module through the slider of the fourth linear sliding module; a second belt clamp and a fourth servo motor are respectively provided on one side of the second module mounting plate, the second belt clamp on the first straightening component is fixedly connected to the second synchronous belt, the second servo motor drives the second module mounting plate to slide on the third linear sliding module and the fourth linear sliding module through the second pulley kit, and a fourth reducer is provided on the output shaft of the fourth servo motor ; A fifth linear sliding module and a sixth linear sliding module are respectively provided on the other side of the second module mounting plate, and the fifth linear sliding module and the sixth linear sliding module are set in a balanced manner; a first module connecting member is provided on the fifth linear sliding module, a first rack is provided at one end of the first module connecting member, a first pin mounting member is provided at the other end of the first module connecting member, and a first pin is provided on the first pin mounting member; a second module connecting member is provided on the sixth linear sliding module, a second rack is provided at one end of the second module connecting member, a second pin mounting member is provided at the other end of the second module connecting member, and a second pin is provided on the second pin mounting member; a gear is provided between the first rack and the second rack, and a fourth servo motor is connected to the gear drive through a fourth reducer.

[0009] By adopting the above technical solution, since the first rack and the second rack are both meshed with the gear, the initial states of the first pin and the second pin are overlapped, and since the fourth servo motor can drive the gear to rotate forward and reversely through the fourth reducer, when the gear rotates reversely, the first rack can be driven to move upward and the second rack can be driven to move downward, and the first rack moving upward can drive the first pin to move upward synchronously through the first module connector and the first pin mounting component, and the second rack moving downward can drive the second pin to move downward synchronously through the second module connector and the second pin mounting component. On the contrary, when the gear rotates forward, it can drive the first rack to move downward and the second rack to move upward. The first rack moving downward can drive the first pin to move downward synchronously through the first module connecting piece and the first pin mounting piece in turn, while the second rack moving upward can drive the second pin to move upward synchronously through the second module connecting piece and the second pin mounting piece in turn. When the first pin and the second pin move in opposite directions, the upper and lower corners of the same side of packaging bags of different thicknesses or heights can be opened and shaped, thereby achieving the purpose of strong versatility.

[0010] Preferably, the structure of the second straightening assembly is arranged in mirror symmetry with the structure of the first straightening assembly, and the second belt clip of the second straightening assembly is fixedly connected to the second synchronous belt.

[0011] By adopting the above-mentioned technical scheme, when the second servo motor drives the second pulley kit to rotate forward and reversely, it can simultaneously drive the first straightening component and the second straightening component to move closer to or away from each other on the third linear sliding module and the fourth linear sliding module (that is, when the second servo motor drives the second pulley kit to rotate forward and reversely, it can simultaneously drive the first straightening component along the third linear sliding module and the second straightening component along the fourth linear sliding module to move closer to or away from each other), so as to realize automatic shaping of the four corners of the bag opening of the packaging bag.

[0012] Preferably, the first inner folding component comprises a third module connector connected and installed with the sliders on the third linear sliding module and the fourth linear sliding module respectively, a third belt clip is provided at the lower end of the third module connector, the third belt clip on the first inner folding component is fixedly connected with the third synchronous belt, a height adjustment plate is provided on one side of the third module connector, one end of the height adjustment plate is connected and installed with the third module connector, a third pin mounting part is provided on the other end of the height adjustment plate, and a third pin is provided on the third pin mounting part. The height adjustment plate is a functional description of the adjustment plate or the mounting plate.

[0013] By adopting the above technical solution, when the third servo motor drives the third pulley assembly to reciprocate, it can drive the third module connecting member to slide reciprocally on the third linear sliding module and the fourth linear sliding module.

[0014] Preferably, the structure of the second inner folding component is arranged in mirror symmetry with the structure of the first inner folding component, and the third belt clip on the second inner folding component is fixedly connected to the third synchronous belt.

[0015] By adopting the above-mentioned technical scheme, when the third servo motor drives the third module connecting part to slide back and forth through the third pulley kit, it can drive the first inner folding component and the second inner folding component to approach or separate from each other on the third linear sliding module and the fourth linear sliding module (that is, when the third servo motor drives the third module connecting part to slide back and forth through the third pulley kit, it can drive the first inner folding component along the third linear sliding module and the second inner folding component along the fourth linear sliding module to move towards or separate from each other), so as to realize automatic folding and shaping of the left and right corners of the bag opening of the packaging bag.

[0016] Preferably, a controller or control system is provided for signal control of components such as the bag insertion drive component, the bag folding drive component, the first straightening component, the second straightening component, the first inner folding component and the second inner folding component. The controller is a PLC programmable logic controller. The PLC programmable logic controller can be a programmable logic controller produced in Shenzhen and with model number XDS-40T-D, but is not limited to this.

[0017] It should be noted that the first linear sliding module, the second linear sliding module, the fifth linear sliding module and the sixth linear sliding module have the same structure as the third linear sliding module or the fourth linear sliding module. The sliders on the slide rails in the first linear sliding module, the second linear sliding module, the fifth linear sliding module and the sixth linear sliding module can be provided with one, two or more sliders according to production needs.

[0018] Compared with the prior art, the beneficial effects of the utility model are: 1. By designing the structure of the bag insertion drive component, the bag insertion drive component can drive the first straightening component, the second straightening component, the first inner folding component and the second inner folding component to move forward and backward together to extend into and exit the packaging bag.

[0019] 2. The structure of the first straightening component, the second straightening component and the bag folding drive component are designed respectively, so that the first straightening component and the second straightening component can separate the bag opening of the packaging bag to the width of the food in the packaging bag under the drive of the bag folding drive component, which ensures that the width of the sealing of the packaging bag is suitable for the width of the food and avoids the packaging bag sealing being too wide, causing the food packaging volume to be too large and occupying space.

[0020] 3. It designs the structures of the first inner folding component and the second inner folding component, and uses the first inner folding component in conjunction with the first straightening component and the second inner folding component in conjunction with the second straightening component to realize automatic shaping, folding and sealing of the four folded corners of the bag opening of the packaging bag. It has the advantages of good shaping and folding effect, high shaping and folding efficiency, high degree of shaping and folding automation operation and high shaping and folding precision.

[0021] 4. Its overall structural design realizes fully automated completion of the inward folding and sealing of the mouth of the food packaging bag, avoiding the disadvantages of the traditional method of flattening the mouth of the packaging bag and causing the two ends of the bag mouth to protrude outward and occupy space, which is not conducive to bagging and preserving the food packaging bag, and is also not conducive to transporting and storing the food packaging bag. It can improve the efficiency of the sealing of the bag mouth and the effect of the sealing of the bag mouth, and reduce the storage space, making it convenient for transportation and storage, so as to reduce the packaging cost, storage cost and transportation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] For ease of explanation, the present invention is described in detail with reference to the following preferred embodiments and accompanying drawings.

[0023] Figure 1 It is a three-dimensional diagram of the packaging bag mouth shaping and folding mechanism of the utility model.

[0024] Figure 2 It is a three-dimensional diagram of the bag insertion drive assembly of the packaging bag mouth shaping and folding mechanism of the utility model.

[0025] Figure 3 It is a three-dimensional diagram of the bag folding drive assembly of the packaging bag mouth shaping and folding mechanism of the present invention.

[0026] Figure 4 It is a three-dimensional view of the bag folding drive assembly of the packaging bag mouth shaping and folding mechanism of the utility model from different directions.

[0027] Figure 5 It is a three-dimensional diagram of the first straightening component or the second straightening component of the packaging bag mouth shaping and folding mechanism of the utility model.

[0028] Figure 6 It is a three-dimensional diagram of the first inner folding component or the second inner folding component of the packaging bag mouth shaping and folding mechanism of the utility model.

[0029] Figure 7 It is a stereoscopic view of the first inner folding component or the second inner folding component of the packaging bag mouth shaping and folding mechanism of the utility model in different directions.

[0030] Figure 8 It is a three-dimensional schematic diagram of the packaging bag mouth shaping and folding mechanism of the utility model in the state of straightening the bag mouth. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively with reference to the relevant drawings. The drawings provide preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] Reference Figures 1 to 8As shown, the packaging bag mouth shaping and folding mechanism of the utility model comprises a bottom plate 1, a bag insertion driving assembly 2 is provided on the bottom plate 1, a bag folding driving assembly 3 is provided on the bag insertion driving assembly 2, a first straightening assembly 41 and a second straightening assembly 42 are provided on one side of the bag folding driving assembly 3, the bag folding driving assembly 3 drives the first straightening assembly 41 and the second straightening assembly 42 to move closer to each other or separate from each other, the first straightening assembly 41 and the second straightening assembly 42 are provided with a first inner folding assembly 51 and a second inner folding assembly 52 on both sides, the first inner folding assembly 51 and the second inner folding assembly 52 are connected to the bag folding driving assembly 3, and the bag folding driving assembly 3 drives the first inner folding assembly 51 and the second inner folding assembly 52 to move closer to each other or separate from each other. A slide 6 for sliding and transmitting the packaging bag is provided longitudinally above the bag folding driving assembly 3.

[0034] In one embodiment, the pocket insertion drive assembly 2 includes a first linear sliding module 21 and a second linear sliding module 22 respectively installed on both ends of the base plate 1, a first servo motor 23 is provided under the base plate 1, a first pulley kit 24 is provided on the base plate 1, the first pulley kit 24 is provided with a first active synchronous wheel 25 and a first driven synchronous wheel 26, the first active synchronous wheel 25 is driven and connected to the first driven synchronous wheel 26 through a first synchronous belt 27, a first reducer 28 is provided on the output shaft of the first servo motor 23, the first servo motor 23 is driven and connected to the first active synchronous wheel 25 through the first reducer 28, a mobile platform 29 is provided across the first linear sliding module 21 and the second linear sliding module 22, a first belt clamp 20 is provided under the mobile platform 29, the first belt clamp 20 is fixedly connected to the first synchronous belt 27, and the first synchronous belt 27 is driven and connected to the mobile platform 29 through the first belt clamp 20.

[0035] In one embodiment, the bag folding drive assembly 3 includes a first module mounting plate 31 vertically arranged on the mobile platform 29, a second servo motor 32 and a third servo motor 33 are provided on one side of the first module mounting plate 31, a second reducer 34 is provided on the output shaft of the second servo motor 32, and a third reducer 35 is provided on the output shaft of the third servo motor 33; a third linear sliding module 36 and a fourth linear sliding module 37 are provided on the other side of the first module mounting plate 31, a second pulley set 38 is provided on one side of the third linear sliding module 36, and the second pulley set 38 is provided with a second active synchronous wheel 38 1 and a second driven synchronous wheel 382, ​​the second active synchronous wheel 381 is drivingly connected to the second driven synchronous wheel 382 through a second synchronous belt 383, a third pulley kit 39 is provided on one side of the fourth linear sliding module 37, the third pulley kit 39 is provided with a third active synchronous wheel 391 and a third driven synchronous wheel 392, the third active synchronous wheel 391 is drivingly connected to the third driven synchronous wheel 392 through a third synchronous belt 393; the third linear sliding module 36 is composed of a slide rail 361 and a plurality of sliders 362, and the fourth linear sliding module 37 is also composed of a slide rail 361 and a plurality of sliders 362.

[0036] In one embodiment, the first straightening component 41 includes a second module mounting plate 411 connected and installed with the sliders 362 on the third linear sliding module 36 and the fourth linear sliding module 37 respectively, the second module mounting plate 411 slides on the slide rail 361 of the third linear sliding module 36 through the slider 362 of the third linear sliding module 36, and the second module mounting plate 411 slides on the slide rail 361 of the fourth linear sliding module 37 through the slider 362 of the fourth linear sliding module 37; a second belt clamp 412 and a fourth servo motor 413 are provided on one side of the second module mounting plate 411, the second belt clamp 412 on the first straightening component 41 is fixedly connected with the second synchronous belt 383, the second servo motor 32 drives the second module mounting plate 411 to slide on the third linear sliding module 36 and the fourth linear sliding module 37 through the second pulley kit 38, and a fourth reducer 414 is provided on the output shaft of the fourth servo motor 413; the second module mounting plate A fifth linear sliding module 415 and a sixth linear sliding module 416 are provided on the other side of 411, and the fifth linear sliding module 415 and the sixth linear sliding module 416 are arranged in a balanced manner; a first module connecting member 417 is provided on the fifth linear sliding module 415, and a first rack 418 is provided at one end of the first module connecting member 417, and a first pin mounting member 419 is provided at the other end of the first module connecting member 417, and a first pin 4191 is provided on the first pin mounting member 419; a second module connecting member 4192 is provided on the sixth linear sliding module 416, and a second rack 4193 is provided at one end of the second module connecting member 4192, and a second pin mounting member 4194 is provided at the other end of the second module connecting member 4192, and a second pin 4195 is provided on the second pin mounting member 4194; a gear 4196 is provided between the first rack 418 and the second rack 4193, and the fourth servo motor 413 is drivingly connected to the gear 4196 through the fourth reducer 414.

[0037] In one embodiment, the structure of the second straightening component 42 is arranged in mirror symmetry with the structure of the first straightening component 41, the second belt clamp 412 of the second straightening component 42 is fixedly connected to the second synchronous belt 383, and the second servo motor 32 simultaneously drives the first straightening component 41 and the second straightening component 42 to approach or separate from each other on the third linear sliding module 36 and the fourth linear sliding module 37 through the second pulley kit 38.

[0038] In one embodiment, the first inward folding component 51 includes a third module connecting member 511 which is connected and installed with the sliders 362 on the third linear sliding module 36 and the fourth linear sliding module 37 respectively, a third belt clamp 512 is provided at the lower end of the third module connecting member 511, the third belt clamp 512 on the first inward folding component 51 is fixedly connected to the third synchronous belt 393, a height adjustment plate 513 is provided on one side of the third module connecting member 511, one end of the height adjustment plate 513 is connected and installed with the third module connecting member 511, a third pin mounting member 514 is provided on the other end of the height adjustment plate 513, a third pin mounting member 514 is provided on the third pin mounting member 514, and a third pin 515 is provided on the third servo motor 33 drives the third module connecting member 511 to slide on the third linear sliding module 36 and the fourth linear sliding module 37 through the third pulley kit 39.

[0039] In one embodiment, the structure of the second inner folding component 52 is arranged in a mirror-symmetrical manner to the structure of the first inner folding component 51, the third belt clamp 512 on the second inner folding component 52 is fixedly connected to the third synchronous belt 393, and the third servo motor 33 drives the first inner folding component 51 and the second inner folding component 52 to approach or separate from each other on the third linear sliding module 36 and the fourth linear sliding module 37 through the third pulley kit 39.

[0040] In one embodiment, the working principle of the bag mouth shaping and folding mechanism is as follows: since one end of the bag is generally sealed, after the food is placed into the bag through the other end of the bag, the open end of the bag containing the food needs to be sealed. First, the bag of food to be sealed is placed on the slide 6 with the bag mouth facing the first straightening component 41 and the second straightening component 42, and is slid to the side of the first straightening component 41 and the second straightening component 42 away from the slide 6 through the obliquely arranged slide 6, and the second servo motor 32 of the bag folding drive component 3 drives the first straightening component 41 and the second straightening component 42 to approach each other through the second pulley kit 38, so that the first straightening component 41 through the first pin 4191 thereon and the second straightening component 42 through the second pin 4195 thereon can face the bag mouth of the bag together, so as to facilitate the subsequent first pin 4191 and the second pin 4195 to be inserted into the bag mouth of the bag together.

[0041] The first servo motor 23 of the bag insertion drive assembly 2 simultaneously drives the first straightening assembly 41, the second straightening assembly 42, the first inner folding assembly 51 and the second inner folding assembly 52 to move toward the direction of the packaging bag through the first pulley kit 24, so that the first pin 4191 and the second pin 4195 can be synchronously inserted into the bag opening of the packaging bag. At the same time, the third pin 515 on the first inner folding assembly 51 and the second inner folding assembly 52 are respectively moved to the two outer sides of the bag opening of the packaging bag.

[0042] When the second servo motor 32 of the bag folding drive assembly 3 simultaneously drives the first straightening assembly 41 and the second straightening assembly 42 to separate from each other through the second pulley kit 38, the first pin 4191 and the second pin 4195 on the first straightening assembly 41 are separated from the first pin 4191 and the second pin 4195 on the second straightening assembly 42 to the width of the food in the packaging bag, which ensures that the sealing width of the packaging bag is suitable for the width of the food while also avoiding the packaging bag sealing being too wide, causing the packaging bag to be too large and occupying space. The third servo motor 33 of the bag folding drive assembly 3 can simultaneously drive the third pin 515 on the first inner folding assembly 51 and the second inner folding assembly 52 through the third pulley kit 39 to approach each other to the sides of the first pin 4191 and the second pin 4195 on the same side to prepare for pushing the two outer walls of the bag opening to fold inward.

[0043] When the fourth servo motor 413 on the first straightening component 41 and the second straightening component 42 rotates, the first pin 4191 and the second pin 4195 thereon can be opened respectively at the same time to open the bag opening for straightening and shaping the bag opening, thereby realizing shaping of the four folding corners of the bag opening.

[0044] When the third servo motor 33 of the bag folding drive assembly 3 simultaneously drives the third pin 515 on the first inner folding assembly 51 and the second inner folding assembly 52 through the third pulley kit 39 to respectively push the two outer walls of the bag opening to fold or push inward to achieve the inward folding of the middle parts of the two ends of the bag opening, at the same time, the fourth servo motor 413 in the first straightening assembly 41 and the second straightening assembly 42 simultaneously drives the first pin 4191 and the second pin 4195 on the first straightening assembly 41 and the second straightening assembly 42 to close together and cooperate with the third pin 515 on the first inner folding assembly 51 and the second inner folding assembly 52 to fold and seal the bag opening inward.

[0045] When the inner folding and sealing of the bag mouth is finalized, the first servo motor 23 of the bag insertion drive assembly 2 simultaneously drives the first straightening assembly 41, the second straightening assembly 42, the first inner folding assembly 51 and the second inner folding assembly 52 through the first pulley kit 24 to reset and move away from the bag mouth of the packaging bag so that they can exit the bag mouth of the packaging bag; then, the second servo motor 32 of the bag folding drive assembly 3 simultaneously drives the first straightening assembly 41 and the second straightening assembly 42 to separate and reset from each other through the second pulley kit 38, and at the same time, the third servo motor 33 of the bag folding drive assembly 3 drives the first inner folding assembly 51 and the second inner folding assembly 52 to separate and reset from each other through the third pulley kit 39, preparing for the inner folding and sealing of the bag mouth of the next packaging bag.

[0046] The overall structural design realizes the fully automatic inward folding, sealing and shaping of the mouth of the food packaging bag. It not only has the advantages of good shaping and folding effect, high shaping and folding efficiency, high degree of shaping and folding automation operation and high shaping and folding precision for the packaging bag, but also improves the efficiency and effect of sealing the mouth of the packaging bag, so that the storage space of the food packaging bag can be reduced to facilitate its transportation and storage, and avoids the phenomenon that the two ends of the bag mouth of the packaging bag protrude outward and occupy space due to the method of flattening one end of the bag mouth and then sealing it by ultrasonic mechanical welding. It effectively solves the problem that the traditional sealing method of flattening the bag mouth causes the two ends of the bag mouth to protrude outward and occupy space, which is not conducive to bagging, preservation, transportation and storage of food packaging bags.

[0047] The above embodiment is only an example of the present invention and is not intended to limit the implementation and scope of rights of the present invention. Any technical solution that is identical or equivalent to the content described in the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. The packaging bag mouth shaping and folding mechanism is characterized by: It includes a bottom plate, on which is provided a pocket insertion driving assembly, on which is provided a bag folding driving assembly, on one side of the bag folding driving assembly are provided a first straightening assembly and a second straightening assembly, respectively, the bag folding driving assembly drives the first straightening assembly and the second straightening assembly to move closer to or separate from each other, on both sides of the first straightening assembly and the second straightening assembly are provided a first inner folding assembly and a second inner folding assembly, respectively, the first inner folding assembly and the second inner folding assembly are drivingly connected to the bag folding driving assembly, and the bag folding driving assembly drives the first inner folding assembly and the second inner folding assembly to move closer to or separate from each other.

2. The packaging bag mouth shaping and folding mechanism according to claim 1, characterized in that: The pocket insertion drive assembly includes a first linear sliding module and a second linear sliding module respectively installed on both ends of the base plate, a first servo motor is arranged under the base plate, a first pulley kit is arranged on the base plate, the first pulley kit is provided with a first active synchronous wheel and a first driven synchronous wheel, the first active synchronous wheel is drivingly connected to the first driven synchronous wheel through a first synchronous belt, a first reducer is arranged on the output shaft of the first servo motor, the first servo motor is drivingly connected to the first active synchronous wheel through the first reducer, a moving platform is arranged across the first linear sliding module and the second linear sliding module, a first belt clamp is arranged under the moving platform, the first belt clamp is fixedly connected to the first synchronous belt, and the first synchronous belt is drivingly connected to the moving platform through the first belt clamp.

3. The packaging bag mouth shaping and folding mechanism according to claim 2, characterized in that: The bag folding drive assembly includes a first module mounting plate vertically arranged on a mobile platform, a second servo motor and a third servo motor are arranged on one side of the first module mounting plate, a second reducer is arranged on the output shaft of the second servo motor, and a third reducer is arranged on the output shaft of the third servo motor; a third linear sliding module and a fourth linear sliding module are respectively arranged on the other side of the first module mounting plate, a second pulley kit is arranged on one side of the third linear sliding module, the second pulley kit is provided with a second active synchronous wheel and a second driven synchronous wheel, and the second active synchronous wheel is connected to the second driven synchronous wheel by a second synchronous belt; a third pulley kit is arranged on one side of the fourth linear sliding module, the third pulley kit is provided with a third active synchronous wheel and a third driven synchronous wheel, and the third active synchronous wheel is connected to the third driven synchronous wheel by a third synchronous belt; the third linear sliding module is composed of a slide rail and a plurality of sliders, and the fourth linear sliding module is also composed of a slide rail and a plurality of sliders.

4. The packaging bag mouth shaping and folding mechanism according to claim 3, characterized in that: The first straightening component includes a second module mounting plate connected and installed with sliders on the third linear sliding module and the fourth linear sliding module respectively, a second belt clamp and a fourth servo motor are respectively provided on one side of the second module mounting plate, the second belt clamp on the first straightening component is fixedly connected to the second synchronous belt, the second servo motor drives the second module mounting plate to slide on the third linear sliding module and the fourth linear sliding module through the second pulley kit, a fourth reducer is provided on the output shaft of the fourth servo motor, a fifth linear sliding module and a sixth linear sliding module are respectively provided on the other side of the second module mounting plate, and the fifth linear The sliding module and the sixth linear sliding module are arranged in a balanced manner; the fifth linear sliding module is provided with a first module connecting member, one end of the first module connecting member is provided with a first rack, the other end of the first module connecting member is provided with a first pin mounting member, and the first pin mounting member is provided with a first pin; the sixth linear sliding module is provided with a second module connecting member, one end of the second module connecting member is provided with a second rack, the other end of the second module connecting member is provided with a second pin mounting member, and the second pin mounting member is provided with a second pin; a gear is provided between the first rack and the second rack, and the fourth servo motor is connected to the gear drive through a fourth reducer.

5. The packaging bag mouth shaping and folding mechanism according to claim 4, characterized in that: The structure of the second straightening component is arranged in a mirror-symmetrical manner to the structure of the first straightening component. The second belt clamp of the second straightening component is fixedly connected to the second synchronous belt. The second servo motor simultaneously drives the first straightening component and the second straightening component through the second pulley kit to move closer to or away from each other on the third linear sliding module and the fourth linear sliding module.

6. The packaging bag mouth shaping and folding mechanism according to claim 3, characterized in that: The first inward folding component includes a third module connecting part which is respectively connected and installed with the sliders on the third linear sliding module and the fourth linear sliding module, a third belt clamp is provided at the lower end of the third module connecting part, the third belt clamp on the first inward folding component is fixedly connected to the third synchronous belt, a height adjustment plate is provided on one side of the third module connecting part, one end of the height adjustment plate is connected and installed with the third module connecting part, a third pin mounting part is provided on the other end of the height adjustment plate, a third pin mounting part is provided on the third pin, and the third servo motor drives the third module connecting part to slide on the third linear sliding module and the fourth linear sliding module through the third pulley kit.

7. The packaging bag mouth shaping and folding mechanism according to claim 6, characterized in that: The structure of the second inner folding component is arranged in a mirror-symmetrical manner to the structure of the first inner folding component. The third belt clamp on the second inner folding component is fixedly connected to the third synchronous belt. The third servo motor drives the first inner folding component and the second inner folding component to approach or separate from each other on the third linear sliding module and the fourth linear sliding module through the third pulley kit.

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