Packaging bag folding and packaging device

Abstract

The invention discloses a packaging bag folding and packaging device, belongs to the field of packaging equipment, and aims to solve the problem of how to improve the specification applicability and the working efficiency of packaging bags. The packaging bag opening folding and packaging device comprises a clamping mechanism and an opening folding mechanism. The clamping mechanism comprises first connecting rods, second connecting rods, supporting rods, shifting rods and pin shafts, the first connecting rods, the supporting rods, the shifting rods and the pin shafts are arranged in two sets, in each set, the number of the first connecting rods is two, one ends of the two first connecting rods are rotatably connected through the pin shafts, the other ends of the two first connecting rods are each connected with one supporting rod, the shifting rods are located between the two first connecting rods and connected with the pin shafts, and the number of the second connecting rods is two. The two second connecting rods are parallel to each other, and the two ends of the second connecting rods are rotationally connected with the first connecting rods of the two clamping assemblies correspondingly. The opening folding mechanism comprises an opening folding plate, the opening folding plate is provided with a folding opening twisted by a half circle in the length direction, the front end of the folding opening is provided with an opening facing the clamping mechanism, and the rear end of the folding opening is provided with a folding mark groove extending in the linear direction.

Description

Technical Field

[0001] The present application relates to the field of packaging equipment, and in particular to a packaging bag folding packaging device. Background Art

[0002] With the rapid progress of modern product packaging line technology, the automation and unmanned trend of food packaging has become the focus of industry research. In view of the continuous improvement of environmental awareness in the current society, the application scope of paper bags as an environmentally friendly packaging material is rapidly expanding. In the product packaging process, the folding and packaging of paper bags are crucial. In order to significantly improve packaging efficiency, mechanical equipment is currently widely used in the industry to perform the folding and packaging tasks of paper bags. Most of the existing mechanical equipment relies on splints or folding plates to fold the mouth of paper bags. Although it can achieve basic folding functions, it lacks flexibility and is difficult to effectively apply to paper bags of different specifications. At the same time, the work efficiency is relatively low.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The embodiment of the present application provides a packaging bag folding packaging device, which can solve the problem of how to improve the applicability and work efficiency of packaging bag specifications in the prior art.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, this application provides the following technical solutions:

[0008] A packaging bag folding and packaging device is provided, the packaging bag folding and packaging device comprising: a clamping mechanism and a folding mechanism;

[0009] The clamping mechanism comprises a connecting rod 1, a connecting rod 2, a support rod, a lever, a pin shaft, a first driving mechanism and a first lifting mechanism. The connecting rod 1, the support rod, the lever and the pin shaft form a clamping assembly, and two groups are provided. In each group of the clamping assembly: the number of the connecting rod 1 is two, one end of the two connecting rods 1 is rotatably connected by a pin shaft, and the other end is respectively connected to one of the connecting rods 1, the lever is located between the two connecting rods 1 and connected to the pin shaft, the connecting rod 2 is provided with two, the two connecting rods 2 are parallel to each other, the two ends of the connecting rod 2 are respectively rotatably connected to one of the connecting rods 1 of the two groups of the clamping assemblies, the first driving mechanism is connected to the two pin shafts, and is used to drive the two pin shafts to move synchronously and in opposite directions, and the first lifting mechanism is connected to the first driving mechanism, and is used to drive the supporting rod and the lever to move up and down;

[0010] The folding mechanism includes a folding plate and a second lifting mechanism. The folding plate is provided with a fold that is twisted half a circle along the length direction. The front end of the folding is provided with an opening toward the clamping mechanism, and the rear end is provided with a folding groove extending in a straight line direction. The second lifting mechanism is connected to the folding plate and is used to drive the folding plate to move up and down.

[0011] In some embodiments, the first driving mechanism includes a mounting seat, a rack, a gear and a motor; the mounting seat is provided with two parallel sliding grooves, the rack is provided with two and is slidably disposed in the two sliding grooves respectively, the gear is rotatably disposed between the two racks and is connected to the two racks at the same time, the motor is fixed on the mounting seat and is connected to the gear transmission; the two pin shafts are each connected to one rack; the first lifting mechanism is connected to the mounting seat.

[0012] In some embodiments, a clearance hole is provided at the lower end of the slide groove, and the rack is provided with a connecting plate, and the connecting plate passes through the clearance hole and is connected to the pin shaft.

[0013] In some embodiments, the first lifting mechanism and the second lifting mechanism are ball screw lifting mechanisms.

[0014] In some embodiments, the ball screw lifting mechanism includes a lifting mechanism body, a bracket and a cross bar, the lifting mechanism body is arranged on the bracket, and the driving end is connected to the cross bar, and the cross bar is connected to the first driving mechanism or the folding plate.

[0015] In some embodiments, the lever is L-shaped, with one end connected to the pin shaft and the other end used to move the bag opening of the packaging bag.

[0016] In some embodiments, the folding plate includes two spaced-apart clips, the opening, the folding and the folding groove are formed between the two clips, and are fixedly connected at the top of the folding groove.

[0017] In some embodiments, the packaging bag folding packaging device further includes a labeling mechanism, and the labeling mechanism is used to label the bag opening at the fold groove.

[0018] In some embodiments, the labeling mechanism includes a supply mechanism, a label transport mechanism, an auxiliary roller, a reeling mechanism, a third lifting mechanism and a mounting frame; the supply mechanism includes a supply shaft rotatably connected to the mounting frame and a supply baffle connected to the supply shaft, the label transport mechanism includes at least two guide rollers rotatably connected to the mounting frame, a conveying plate fixedly arranged between the guide rollers, and a peeling tip is provided at one end of the conveying plate away from the guide rollers; the auxiliary roller is rotatably arranged on one side of the peeling tip; the reeling mechanism includes a reeling shaft rotatably connected to the mounting frame, a reeling drum rotatably mounted on the reeling shaft, a reeling baffle connected to the reeling shaft, and a reeling motor driving the reeling shaft to rotate; the third lifting mechanism is connected to the frame and to the mounting frame, and is used to drive the mounting frame to move up and down.

[0019] In some embodiments, the packaging bag folding and packaging device further includes a conveying mechanism, and the conveying mechanism is used to convey the packaging bag to pass through the clamping mechanism and the folding mechanism in sequence.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the technical solution provided in the embodiment of the present application has at least the following beneficial effects:

[0022] When the packaging bag folding and packaging device of the present application is working, the bag mouth is first closed by the clamping mechanism, and then the closed bag mouth is bent by the folding mechanism. The whole working process is carried out as the packaging bag moves, and the working efficiency is high. Specifically, when the clamping mechanism closes the bag mouth, the packaging bag first moves to the bottom of the clamping mechanism, and the first lifting mechanism drives the support rod and the lever to descend, so that the support rod extends into the interior of the packaging bag, and the lever is located outside the packaging bag; then, the first driving mechanism drives the two pins to approach each other to tighten the two sets of clamping components, so that the lever and the support rod move synchronously toward the middle of the packaging bag, and gradually close the bag mouth. The support rod plays a positioning role to prevent the paper bag from wrinkling during the clamping process, so that the bag mouth is stably clamped under the action of the lever to produce creases. After the clamping action is completed, the clamping component is pulled out of the packaging bag and driven to open by the first driving mechanism to prepare for the clamping operation of the next packaging bag. After the bag mouth is folded and creased, it enters the folding mechanism. The folding mechanism first guides the bag mouth into the fold through the opening of the folding plate, and then gradually bends the bag mouth 180° from one end to the other end by twisting the folding mouth half a circle along the length direction. The bent bag mouth enters the crease groove at the rear end. Since the crease groove extends in a straight line, the bag mouth can be tightly attached after bending to form a crease, thereby realizing the folding of the bag mouth.

[0023] The packaging bag folding packaging device of the present application can adapt to packaging bags of different specifications and has strong applicability. Specifically, the clamping mechanism controls the height of the support rod and the lever through the first lifting mechanism to adapt to the height of packaging bags of different specifications, and can adapt to the width and height of packaging bags of different specifications by replacing the first and second connecting rods of different lengths; at the same time, the folding mechanism can control the height of the folding plate through the second lifting mechanism to adapt to the folding height of packaging bags of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 is a three-dimensional diagram of a packaging bag folding packaging device in an embodiment of the present application;

[0026] Figure 2 is a three-dimensional diagram of the clamping mechanism in the embodiment of the present application;

[0027] Figure 3 is a three-dimensional diagram of the folding mechanism in the embodiment of the present application;

[0028] Figure 4 Schematic diagram of a packaging bag folding and packaging device processing a packaging bag in an embodiment of the present application;

[0029] Figure 5 is an exploded view of the labeling mechanism in the embodiment of the present application;

[0030] Figure 6 It is a three-dimensional diagram of a sheet metal cover provided in a packaging bag folding packaging device in an embodiment of the present application.

[0031] Reference numerals:

[0032] Clamping mechanism 1, connecting rod 1 11, connecting rod 2 12, support rod 13, lever 14, pin 15, first driving mechanism 16, first lifting mechanism 17, mounting seat 161, rack 162, gear 163, motor 164, slide slot 165, connecting plate 166, lifting mechanism body 171, bracket 172, cross bar 173;

[0033] Folding mechanism 2, folding plate 21, second lifting mechanism 22, labeling back plate 23, folding 201, opening 202, crease groove 203;

[0034] The roll supply mechanism 31, the label conveying mechanism 32, the auxiliary roller 33, the roll-up mechanism 34, the third lifting mechanism 35, the mounting frame 36, the roll supply shaft 311, the roll supply baffle 312, the guide roller 321, the conveying plate 322, the peeling tip 323, the roll-up shaft 341, the roll-up baffle 342, and the roll-up motor 343;

[0035] Conveying mechanism 4, sheet metal cover 5, packaging bag 6.

[0036] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Most of the existing packaging bag sealing equipment relies on splints or folding plates to fold the mouth of paper bags. Although they can achieve basic folding functions, they lack flexibility and are difficult to effectively apply to paper bags of different specifications. At the same time, the work efficiency is relatively low.

[0040] In order to solve the above technical problems, this embodiment provides a packaging bag folding packaging device, referring to Figures 1 to 4 As shown, Figure 1 is a three-dimensional diagram of a packaging bag folding packaging device in an embodiment of the present application, Figure 2 is a three-dimensional diagram of the clamping mechanism in the embodiment of the present application, Figure 3 is a three-dimensional diagram of the folding mechanism in the embodiment of the present application, Figure 4 It is a schematic diagram of the process of processing a packaging bag by the packaging bag folding packaging device in the embodiment of the present application.

[0041] like Figure 1 As shown, the packaging bag folding and sealing device provided in this embodiment includes: a clamping mechanism 1 and a folding mechanism 2.

[0042] The clamping mechanism 1 is used to close the bag opening of the packaging bag 6. Figure 1 and Figure 2 As shown, it comprises a connecting rod 11, a connecting rod 2 12, a supporting rod 13, a lever 14, a pin 15, a first driving mechanism 16 and a first lifting mechanism 17. The connecting rod 11, the supporting rod 13, the lever 14 and the pin 15 form a clamping assembly, and two groups are provided. In each group of the clamping assembly: the number of the connecting rod 11 is two, one end of the two connecting rods 11 is rotatably connected through the pin 15, and the other end is respectively connected to a supporting rod 13, the supporting rod 13 is used to support or form the corners of the packaging bag 6, the lever 14 is located between the two connecting rods 11, and is connected to the pin 15, and the lever 14 is used to push the bag mouth of the packaging bag 6 inward to form a fold. There are two connecting rods 12, and the two connecting rods 12 are parallel to each other. The two ends of the connecting rod 12 are rotatably connected to a connecting rod 11 of the two sets of clamping assemblies respectively. The first driving mechanism 16 is connected to the two pins 15 to drive the two pins 15 to move synchronously and in opposite directions. The first lifting mechanism 17 is connected to the first driving mechanism 16 to drive the support rod 13 and the shifting rod 14 to move up and down.

[0043] The folding mechanism 2 is used to fold the bag mouth after the clamping operation. Figure 1 and Figure 3As shown, it includes a folding plate 21 and a second lifting mechanism 22. The folding plate 21 is provided with a folding plate 201 twisted half a circle along the length direction, and the folding plate 201 is used to fold the bag mouth 180 degrees. The front end of the folding plate 201 is provided with an opening 202 facing the clamping mechanism 1, and the opening 202 is used to guide the folded bag mouth into the folding plate 201. The rear end of the folding plate 201 is provided with a crease groove 203 extending in a straight line direction, and the crease groove 203 shapes the folded bag mouth, so that the bag mouth forms a relatively stable crease after folding. The second lifting mechanism 22 is connected to the folding plate 21, and is used to drive the folding plate 21 to move up and down.

[0044] When the packaging bag folding and sealing device of the above technical solution is working, the bag mouth is first closed by the clamping mechanism 1, and then the closed bag mouth is bent by the folding mechanism 2. The whole working process is carried out with the movement of the packaging bag 6, and the working efficiency is high. Figure 4 As shown, when the clamping mechanism 1 closes the bag opening, the packaging bag 6 first moves to the bottom of the clamping mechanism 1, and the first lifting mechanism 17 drives the support rod 13 and the lever 14 to descend, so that the support rod 13 extends into the packaging bag 6, and the lever 14 is located outside the packaging bag 6; then, the first driving mechanism 16 drives the two pins 15 to approach each other to tighten the two sets of clamping components, so that the lever 14 and the support rod 13 move synchronously toward the middle of the packaging bag 6, and gradually close the bag opening. The support rod 13 plays a positioning role to prevent the paper bag from wrinkling during the clamping process, so that the bag opening is stably clamped under the action of the lever 14, and creases are generated. After the clamping action is completed, the clamping component is pulled out of the packaging bag 6 and driven to open by the first driving mechanism 16 to prepare for the clamping operation of the next packaging bag 6. After the bag opening is folded and a crease is formed, it enters the folding mechanism 2. The folding mechanism 2 first guides the bag opening into the folding 201 through the opening 202 of the folding plate 21, and then gradually bends the bag opening 180° from one end to the other end by twisting the folding 201 half a circle along the length direction. The bent bag opening enters the crease groove 203 at the rear end. Since the crease groove 203 extends in a straight line, the bag opening can be tightly attached after bending to form a crease, thereby realizing the folding of the bag opening.

[0045] It can be seen that the packaging bag folding packaging device of the above technical solution realizes the automatic folding and bending of the bag mouth through the innovative design of the clamping mechanism 1 and the folding mechanism 2. The entire operation process is synchronized with the movement of the packaging bag 6, which significantly improves the work efficiency. The device not only has efficient working ability, but also shows strong adaptability: the clamping mechanism 1 controls the height of the support rod 13 and the lever 14 through the first lifting mechanism 17, which can adapt to the height of packaging bags 6 of different specifications, and can adapt to the width and height of packaging bags 6 of different specifications by replacing the connecting rod 1 11 and the connecting rod 2 12 of different lengths; at the same time, the folding mechanism 2 can control the height of the folding plate 21 through the second lifting mechanism 22 to adapt to the height of the folding 201 of packaging bags 6 of different specifications.

[0046] In an embodiment of the first driving mechanism 16 connected to the two pins 15 and driving the two pins 15 to move synchronously and in opposite directions, refer to Figure 2 As shown, the first driving mechanism 16 includes a mounting seat 161, a rack 162, a gear 163 and a motor 164; the mounting seat 161 is provided with two parallel slide grooves 165 at the lower end, the rack 162 is provided with two gears, and is slidably disposed in the two slide grooves 165 respectively, the gear 163 is rotatably disposed between the two gears 162 and is simultaneously connected to the two gears 162, the motor 164 is fixed on the mounting seat 161 and is transmission-connected with the gear 163; the two pins 15 are each connected to a rack 162; the first lifting mechanism 17 is connected to the mounting seat 161. When the first driving mechanism 16 is working, the motor 164 drives the gear 163 to rotate, and the gear 163 drives the two gears 162 to move in the opposite direction, thereby driving the two pins 15 to move synchronously and in the opposite direction, so as to open or retract the two sets of clamping components. The first lifting mechanism 17 drives the mounting seat 161 to move up and down, thereby driving the support rod 13 and the shifting rod 14 to move up and down. The first driving mechanism 16 in this embodiment only needs one motor 164 to drive the two groups of clamping components to move synchronously. It not only has a simple structure and saves manufacturing costs, but also effectively ensures the synchronization of the movement of each support rod 13 and the lever 14, making the action of closing the bag opening of the clamping mechanism 1 more reliable.

[0047] For example, in order to facilitate the connection between the rack 162 and the pin 15, see Figure 2 As shown, a clearance hole is provided at the lower end of the slide groove 165, and a connecting plate 166 is provided at the rack 162. The connecting plate 166 passes through the clearance hole and is connected to the pin 15. In this way, the rack 162 is ensured to slide stably in the slide groove 165, and the rack 162 is reliably connected to the pin 15, so that the pin 15 is located between the two struts 13.

[0048] In the second embodiment (not shown) in which the first driving mechanism 16 is connected to the two pins 15 and drives the two pins 15 to move synchronously and in opposite directions, there are two first driving mechanisms 16, which are existing linear driving mechanisms, such as a cylinder or a linear motor 164, and respectively drive the two pins 15 to move synchronously and in opposite directions.

[0049] In one embodiment of the first lifting mechanism 17 and the second lifting mechanism 22, see Figure 1 As shown, the first lifting mechanism 17 and the second lifting mechanism 22 are ball screw lifting mechanisms. The ball screw lifting mechanism has the characteristics of high precision, high speed and good stability, and can be well applied to the lifting movement in the packaging bag folding packaging device.

[0050] Further, see Figure 1As shown, the ball screw lifting mechanism includes a lifting mechanism body 171, a bracket 172 and a cross bar 173. The lifting mechanism body 171 is arranged on the bracket 172, and the driving end is connected to the cross bar 173, and the cross bar 173 is connected to the first driving mechanism 16 or the folding plate 21. When working, the lifting mechanism body 171 is supported by the bracket 172, and the driving end drives the cross bar 173 to move up and down, and the cross bar 173 drives the first driving mechanism 16 or the folding plate 21 to move up and down.

[0051] In another embodiment of the first lifting mechanism 17 and the second lifting mechanism 22, the first lifting mechanism 17 and the second lifting mechanism 22 use existing lifting modules, and the lifting modules are fixed on the frame.

[0052] For example, see Figure 2 As shown, the lever 14 is L-shaped, and one end is connected to the pin 15, and the other end is used to move the bag opening of the packaging bag 6. The L-shaped lever 14 enables the lever 14 to effectively move the bag opening of the packaging bag 6 when the pin 15 moves, thereby achieving the clamping and loosening of the bag opening.

[0053] For example, see Figure 3 As shown, the opening 202 is trumpet-shaped so as to guide the bag opening into the fold 201 .

[0054] Exemplarily, the fold 201 is twisted half a circle along the length direction by the following parameter equation:

[0055]

[0056] This set of equations represents a strip structure with a side length of 1 and a radius of 1, located in the xy plane, with a center of (0, 0, 0), and parameter u surrounds the entire strip when v moves from one side to the other. Among them, the fold 201 structure is half of the entire strip, and it is ensured that the two ends are parallel to each other and in opposite directions after twisting half a circle.

[0057] Exemplarily, the above-mentioned fold 201 is twisted half a circle along the length direction in the same way as the Möbius strip. The fold 201 structure is half of the entire Möbius strip, and ensures that the two ends are parallel to each other and face opposite directions after twisting half a circle.

[0058] The above-mentioned folding plate 21 can be an integrally formed part or a split structure. Figure 3 As shown, the folding plate 21 includes two spaced-apart clips, forming an opening 202, a folding 201 and a crease groove 203 between the two clips, and is fixedly connected at the top of the folding groove 203, such as by welding, to ensure that the packaging bag 6 can maintain a stable shape during the folding 201 process.

[0059] To label and seal the folded bag, refer to Figure 4 and Figure 5 As shown, Figure 5 The folding packaging device for packaging bags further comprises a labeling mechanism 3 , which is used to label the bag opening at the folding groove 203 .

[0060] For example, see Figure 4 and Figure 5 As shown, the labeling mechanism 3 includes a roll supply mechanism 31, a label conveying mechanism 32, an auxiliary roller 33, a reeling mechanism 34, a third lifting mechanism 35 and a mounting frame 36. The roll supply mechanism 31 provides a label roll, the label conveying mechanism 32 delivers the label to a designated position, the auxiliary roller 33 is used to assist in the peeling and pasting of the label, and the reeling mechanism 34 is responsible for collecting the peeled label paper. The third lifting mechanism 35 is installed on the frame and connected to the mounting frame 36. By driving the mounting frame 36 to rise and fall, the roll supply mechanism 31, the label conveying mechanism 32, the auxiliary roller 33, and the reeling mechanism 34 are synchronously lifted and lowered to achieve labeling processing of the bag opening at the fold groove 203.

[0061] For details, see Figure 5As shown, the roll supply mechanism 31 includes a roll supply shaft 311 rotatably connected to the mounting frame 36 and a roll supply baffle 312 connected to the roll supply shaft 311. The roll supply shaft 311 is provided with a label roll, and the roll supply baffle 312 prevents the label roll from being separated from the roll supply shaft 311. The label conveying mechanism 32 includes at least two guide rollers 321 rotatably connected to the mounting frame 36, a conveying plate 322 fixedly arranged between the guide rollers 321, and a stripping tip 323 is arranged at one end of the conveying plate 322 away from the guide rollers 321. After passing through the guide rollers 321, the label passes through the stripping tip 323 and then passes through the other guide roller 321; the auxiliary roller 33 is rotatably arranged on one side of the stripping tip 323; the reeling mechanism 34 includes a reeling shaft 341 rotatably connected to the mounting frame 36, a reeling drum rotatably sleeved on the reeling shaft 341, a reeling baffle 342 connected to the reeling shaft 341, and a reeling motor 343 driving the reeling shaft 341 to rotate. At the same time, a labeling back plate 23 is fixed at the lower end of the folding groove 203 as a supporting structure for labeling. When working, when the packaging bag 6 moves to the specified position, the labeling device is lifted up for a distance to prevent the conveying plate 322 from interfering with the packaging bag 6 and scratching the packaging bag 6. The label roll is placed in the supply reel 311, and the motor 164 drives the reel 341 to rotate. The supply reel baffle 312 and the supply reel 311 are threaded to clamp the label roll, provide a damping effect and facilitate disassembly and replacement. When the packaging bag 6 enters the specified position, the reel motor 343 drives the reel 341 to rotate, and then pulls the label roll to rotate, first allowing a part of the label to be exposed at the peeling tip 323; at this time, the third lifting mechanism 35 drives the mounting frame 36 to descend, and the label is pasted with the cooperation of the upper auxiliary roller 33 and the labeling back plate 23. After labeling is completed, the mounting frame 36 rises and returns to the waiting position, waiting for the next packaging bag 6 to arrive at the labeling platform for repeated movement.

[0062] In order to realize the automatic movement of the packaging bag 6, refer to Figure 4 As shown, the packaging bag folding and sealing device further includes a conveying mechanism 4, which is used to convey the packaging bag 6 to pass through the clamping mechanism 1, the folding mechanism 2 and the labeling mechanism 3 in sequence.

[0063] Exemplarily, the conveying mechanism 4 is an existing conveyor belt mechanism, the clamping mechanism 1, the folding mechanism 2 and the labeling mechanism 3 are arranged in a straight line, and the conveyor belt mechanism conveys the packaging bag 6 to the bottom of the clamping mechanism 1, the folding mechanism 2 and the labeling mechanism 3 in sequence through the conveyor belt.

[0064] In order to ensure the safety of workers during construction, a sheet metal cover 5 is provided on the frame. Figure 6 As shown, Figure 6 The 3D diagram of the packaging bag folding and packaging device in the embodiment of the present application is a sheet metal cover. The sheet metal cover 5 is arranged around the clamping mechanism 1, the folding mechanism 2 and the labeling mechanism 3.

[0065] It is understandable that the packaging bag folding packaging device can also be provided with sensors and control systems. Exemplarily, the control system adopts a layered architecture, including an upper control layer, a middle execution layer and a bottom sensor layer. Upper control layer: mainly responsible for receiving operation instructions, performing logical judgments, and generating control signals. A PLC (programmable logic controller) or an industrial computer can be used as the core controller to achieve coordinated control of various mechanisms through programming. Middle execution layer: receiving control signals from the upper control layer, driving the motor 164 and other driving elements of each mechanism to work. The execution layer includes the clamping assembly of the clamping mechanism 1, the folding plate 21 and the execution components of the labeling mechanism 3. Bottom sensor layer: responsible for detecting the position, state and other information of the packaging bag 6, and feeding back this information to the upper control layer. Sensors can include photoelectric sensors, position sensors, pressure sensors, etc. The control process is as follows: Initialization: After the control system is started, the initialization operation is first performed, including checking the state of each mechanism, calibrating the sensor, etc. Packaging bag 6 conveying: the packaging bag 6 is conveyed to the designated position by the conveying mechanism 4, and the control system detects the position of the packaging bag 6 through the sensing layer to ensure that the packaging bag 6 accurately reaches the bottom of the clamping mechanism 1. The clamping mechanism 1 works: the control system sends a signal to the first lifting mechanism 17 to drive the support rod 13 and the lever 14 to descend to the appropriate position; the control system sends a signal to the first driving mechanism 16 to drive the pin 15 to move synchronously and in the opposite direction, so that the support rods 13 and the lever 14 of the two sets of clamping assemblies work together to clamp the bag mouth of the packaging bag 6. The folding mechanism 2 works: the control system sends a signal to the second lifting mechanism 22 to drive the folding plate 21 to descend to the appropriate position; the control system controls the folding plate 21 to bend the bag mouth of the packaging bag 6 through the folding 201 thereon, and the bent bag mouth enters the crease groove 203 at the rear end. The labeling mechanism 3 works (if necessary): the control system sends a signal to the labeling mechanism 3 to start the roll feeding mechanism 31 to release the label; the label is transported to the designated position by the label feeding mechanism 32, and the auxiliary roller 33 assists the label to be peeled off and pasted on the bag opening at the fold groove 203; the control system sends a signal to the roll-up mechanism 34 to collect the peeled label paper. Packaging is completed: the control system detects the state of the packaging bag 6 after packaging, such as position, shape, etc., through the sensor layer to ensure the packaging quality. Cyclic work: the control system continues to receive operation instructions according to the set number of cycles or continuous working mode, and performs the next round of packaging work of the fold 201 of the packaging bag 6.

[0066] The packaging bag 6 can be a paper bag, or other bags that have a certain shaping ability and can be folded.

[0067] The above description is only an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A packaging bag folding packaging device, characterized in that: include: Clamping mechanism and folding mechanism; The clamping mechanism comprises a connecting rod 1, a connecting rod 2, a support rod, a lever, a pin shaft, a first driving mechanism and a first lifting mechanism. The connecting rod 1, the support rod, the lever and the pin shaft form a clamping assembly, and two groups are provided. In each group of the clamping assembly: the number of the connecting rod 1 is two, one end of the two connecting rods 1 is rotatably connected by a pin shaft, and the other end is respectively connected to one of the connecting rods 1, the lever is located between the two connecting rods 1 and connected to the pin shaft, the connecting rod 2 is provided with two, the two connecting rods 2 are parallel to each other, the two ends of the connecting rod 2 are respectively rotatably connected to one of the connecting rods 1 of the two groups of the clamping assemblies, the first driving mechanism is connected to the two pin shafts, and is used to drive the two pin shafts to move synchronously and in opposite directions, and the first lifting mechanism is connected to the first driving mechanism, and is used to drive the supporting rod and the lever to move up and down; The folding mechanism includes a folding plate and a second lifting mechanism. The folding plate is provided with a fold that is twisted half a circle along the length direction. The front end of the folding is provided with an opening toward the clamping mechanism, and the rear end is provided with a folding groove extending in a straight line direction. The second lifting mechanism is connected to the folding plate and is used to drive the folding plate to move up and down.

2. The packaging bag folding and sealing device according to claim 1, characterized in that: The first driving mechanism includes a mounting seat, a rack, a gear and a motor; the mounting seat is provided with two parallel sliding grooves, the rack is provided with two and is slidably arranged in the two sliding grooves respectively, the gear is rotatably arranged between the two racks and is connected to the two racks at the same time, the motor is fixed on the mounting seat and is connected to the gear transmission; the two pin shafts are each connected to one rack; the first lifting mechanism is connected to the mounting seat.

3. The packaging bag folding and sealing device according to claim 2, characterized in that: A clearance hole is provided at the lower end of the slide slot, and a connecting plate is provided at the rack. The connecting plate passes through the clearance hole and is connected to the pin shaft.

4. The packaging bag folding and sealing device according to claim 1, characterized in that: The first lifting mechanism and / or the second lifting mechanism is a ball screw lifting mechanism.

5. The packaging bag folding and sealing device according to claim 4, characterized in that: The ball screw lifting mechanism comprises a lifting mechanism body, a bracket and a cross bar. The lifting mechanism body is arranged on the bracket, and the driving end is connected to the cross bar. The cross bar is connected to the first driving mechanism or the folding plate.

6. The packaging bag folding and sealing device according to claim 1, characterized in that: The lever is L-shaped, one end of which is connected to the pin shaft, and the other end is used to move the bag opening of the packaging bag.

7. The packaging bag folding and sealing device according to claim 1, characterized in that: The folding plate comprises two spaced apart clips, the opening, folding and folding groove are formed between the two clips, and are fixedly connected at the top of the folding groove.

8. The packaging bag folding and sealing device according to claim 1, characterized in that: The packaging bag folding sealing device also includes a labeling mechanism, which is used to label the bag opening at the folding groove.

9. The packaging bag folding and sealing device according to claim 8, characterized in that: The labeling mechanism includes a roll supply mechanism, a label conveying mechanism, an auxiliary roller, a roll-up mechanism and a mounting frame; The roll supply mechanism comprises a roll supply shaft rotatably connected to the mounting frame and a roll supply baffle connected to the roll supply shaft, and the label conveying mechanism comprises at least two guide rollers rotatably connected to the mounting frame, and a conveying plate fixedly arranged between the guide rollers, wherein a stripping tip is arranged at one end of the conveying plate away from the guide rollers; The auxiliary roller is rotatably disposed on one side of the peeling tip; The winding mechanism comprises a winding shaft rotatably connected to the mounting frame, a winding drum rotatably sleeved on the winding shaft, a winding baffle connected to the winding shaft, and a winding motor driving the winding shaft to rotate; The third lifting mechanism is connected to the frame and to the mounting frame, and is used to drive the mounting frame to move up and down.

10. The packaging bag folding and sealing device according to claim 1, characterized in that: The packaging bag folding and sealing device also includes a conveying mechanism, which is used to convey the packaging bag to pass through the clamping mechanism and the folding mechanism in sequence.

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