Processing mechanism of composite packaging bag

Abstract

The utility model provides a composite packaging bag processing mechanism which comprises a rack, and a feeding unit, a traction unit, a folding unit, an inspection unit, a heat sealing unit, a hot pressing unit and a cutting unit are sequentially installed on the rack in the production direction of a composite packaging bag. A raw material strip can be effectively folded and gradually tightened by adopting the positioning plate with the inclination angle and the tightening roller, the raw material strip wraps the positioning plate, the shaping effect is better, wrinkles are avoided, the pressing plate can effectively fold and limit a center joint after the two ends of the raw material strip abut against each other, and the production efficiency is improved. And the inspection unit is used for inspection, center joint dislocation is avoided, the production quality and the sealing performance of the composite packaging bag are improved, heat sealing can be carried out on center joints of raw material strips made of high polymer materials, heat sealing can be carried out on the two sides of the raw material strips, heat sealing faces are more, glue is not used in the heat sealing process, and the production process is more environmentally friendly.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag production, in particular to a processing mechanism for composite packaging bags. Background Art

[0002] Packaging bags refer to bags used to package various supplies, making it convenient to transport and store goods during the production and circulation process.

[0003] Patent document CN219988612U discloses a packaging bag production device, including a cabinet, on which a feeding mechanism, a folding mechanism, a heat sealing mechanism, an air jet mechanism, a coding mechanism, a sealing mechanism, and a cutting mechanism are sequentially arranged along the production direction of the packaging bags. The air jet mechanism is used to spray air into the heat-sealed packaging bag to open the bag body, facilitate the inspection of the bag body by the staff, discharge the waste gas in the bag, and cool the bag body, so as to facilitate the safe storage of the goods in the bag.

[0004] In the above scheme, the folding mechanism of the production device has a simple structure, and the plastic film is folded in half only by folding the vertical rod, which easily causes film wrinkles and misalignment. The heat sealing device is easy to damage the packaging bag or incomplete heat sealing during heat sealing. It can only heat seal in the production direction, and cannot heat seal on both sides of the packaging bag. It also requires a jet mechanism to blow air and then manually check, so the efficiency and yield are low. Therefore, it is necessary to provide a processing mechanism for composite packaging bags to solve the shortcomings of the prior art. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings in the prior art and provide a processing mechanism for a composite packaging bag.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] A composite packaging bag processing mechanism comprises a frame, on which a feeding unit, a pulling unit, a folding unit, an inspection unit, a heat sealing unit, a heat pressing unit and a cutting unit are sequentially installed along the production direction of the composite packaging bag;

[0008] A feeding unit, which is arranged at one end of the frame and contains raw material rolls;

[0009] A pulling unit, which is connected to the feeding unit, is wound with a raw material strip and pulls the raw material strip in a production direction;

[0010] A folding unit, which is connected to the pulling unit and is used to fold and compact the raw material strips;

[0011] An inspection unit, which is connected to the folding unit and is used to inspect whether the raw material strips are folded according to the standard;

[0012] A heat sealing unit, which is connected to the inspection unit and is used to heat seal the middle section of the folded raw material strip;

[0013] A heat pressing unit, which is connected to the heat sealing unit and is used to heat press and heat seal the two sides of the raw material strip;

[0014] The cutting unit is connected with the second heat sealing unit and is used for cutting the raw material strips after heat pressing.

[0015] The utility model is further configured that the feeding unit comprises:

[0016] A feeding roller is arranged at the starting end of the frame in the production direction, a raw material roll is passed through the feeding roller, and the feeding roller is connected to the pulling unit through the raw material strip.

[0017] The utility model is further configured that the pulling unit comprises:

[0018] A tensioning roller group, the tensioning roller group comprises a plurality of tensioning rollers, the tensioning roller group is arranged in an array, and the tensioning roller of the tensioning roller group close to one end of the feeding roller is connected to the feeding roller through a raw material strip;

[0019] The first traction roller is connected to the tension roller at one end of the tension roller group away from the feeding roller through the raw material strip, and the first traction roller is connected to the output end of the first traction motor.

[0020] The utility model is further configured that the folding unit comprises:

[0021] Sliding rollers, the sliding roller array is arranged on the frame, and is used to support the raw material strip and reduce the friction of the raw material strip sliding along the production direction;

[0022] A positioning plate, which is located above the sliding roller, so that the raw material strip is folded inward along both ends of the positioning plate to cover the positioning plate;

[0023] A tightening roller, which is located above the positioning plate and is used to gradually tighten the two ends of the raw material strip inward;

[0024] The pressing plate is located above the positioning plate and behind the tightening roller. The pressing plate is used to limit the folding of the middle seam after the two ends of the raw material strip collide with each other.

[0025] The utility model is further configured that a second traction roller is provided between the inspection unit and the heat sealing unit, and the second traction roller is connected to the output end of the second traction motor.

[0026] The utility model is further configured that two embedded disks are provided between the heat sealing unit and the heat pressing unit, the two embedded disks are respectively located on both sides of the heat-sealed raw material strip, one embedded disk is higher than the heat-sealed raw material strip, and the other embedded disk is lower than the heat-sealed raw material strip.

[0027] The utility model is further configured that a track platform is provided below the cutting unit, a conveyor belt is provided on the surface of the track platform, the track platform is used to receive the sheared packaging bags, and the packaging bags are moved along the production direction through the conveyor belt.

[0028] The utility model is further configured that support rollers are arranged between the heat sealing unit and the heat pressing unit and between the heat pressing unit and the cutting unit.

[0029] In summary, the utility model has the following beneficial effects:

[0030] 1. The utility model adopts an angled positioning plate and a tightening roller to effectively fold and gradually tighten the raw material strip. Since the raw material strip covers the positioning plate, the shaping effect is better and wrinkles can be avoided.

[0031] 2. The pressing plate of the utility model can effectively limit the folding of the middle seam after the two ends of the raw material strip collide with each other, and can be inspected by the inspection unit to avoid the misalignment of the middle seam, thereby improving the production quality and sealing of the composite packaging bag.

[0032] 3. The utility model can heat-seal the middle seam of the raw material strip of polymer material, and heat-seal both sides of the raw material strip, with more heat-sealed surfaces, and no glue is used in the heat-sealing process, so the production process is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the utility model.

[0034] Figure 2 It is a structural schematic diagram of the pressing plate of the utility model.

[0035] In the figure, 1. frame, 2. feeding roller, 3. tensioning roller group, 4. first traction roller, 5. sliding roller, 6. positioning plate, 7. tightening roller, 8. pressing plate, 9 inspection unit, 10. heat sealing unit, 11. hot pressing unit, 12 cutting unit, 13. second traction roller, 14. embedded disk, 15. track platform, 16. conveyor belt, 17. supporting roller. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiment of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0037] Example 1:

[0038] In this embodiment, if Figure 1-2 As shown, a processing mechanism for a composite packaging bag proposed in the utility model comprises a frame 1, on which a feeding unit, a pulling unit, a folding unit, an inspection unit 9, a heat sealing unit 10, a heat pressing unit 11 and a cutting unit 12 are sequentially installed along the production direction of the composite packaging bag; the feeding unit is arranged at one end of the frame, and the feeding unit contains a raw material roll; the pulling unit is connected to the feeding unit, and the pulling unit is wound with a raw material strip, and pulls the raw material strip in the production direction; the folding unit is connected to the pulling unit, and the folding unit is used to fold and press the raw material strip; the inspection unit is connected to the folding unit, and the inspection unit is used to inspect whether the raw material strip is folded according to the standard; the heat sealing unit is connected to the inspection unit, and the heat sealing unit is used to heat seal the middle section of the folded raw material strip; the heat pressing unit is connected to the heat sealing unit, and the heat pressing unit is used to heat press and heat seal the two sides of the raw material strip; the cutting unit is connected to the second heat sealing unit, and the cutting unit is used to cut the raw material strip after heat pressing.

[0039] In the present embodiment, it is further configured that the feeding unit includes a feeding roller 2, which is arranged at the starting end of the frame in the production direction, and a raw material roll is passed through the feeding roller. The feeding roller is connected to the pulling unit through a raw material strip.

[0040] In this embodiment, it is further configured that the pulling unit includes a tensioning roller group 3 and a first traction roller 4. The tensioning roller group includes multiple tensioning rollers, and the tensioning roller group is arranged in an array. The tensioning roller at one end of the tensioning roller group close to the feeding roller is connected to the feeding roller through the raw material strip; the traction roller is connected to the tensioning roller at one end of the tensioning roller group away from the feeding roller through the raw material strip, and the first traction roller is connected to the output end of the first traction motor, which is not drawn in the figure. The tensioning roller group can make the raw material roll on the feeding roller unfold smoothly, so that the raw material strip can be stably transported along the production direction under the action of the first traction roller, and wrinkles and adhesion of the raw material strip can be avoided by adjusting the tension.

[0041] In this embodiment, it is further configured that the folding unit includes a sliding roller 5, a positioning plate 6, a tightening roller 7 and a pressing plate 8. The sliding roller array is arranged on the frame to support the raw material strip and reduce the friction of the raw material strip sliding along the production direction; the positioning plate is located above the sliding roller, so that the raw material strip is folded inward along the two ends of the positioning plate to cover the positioning plate; the tightening roller is located above the positioning plate, and the tightening roller is used to gradually tighten the two ends of the raw material strip inward; the pressing plate is located above the positioning plate and behind the tightening roller, and the pressing plate is used to limit the folding of the middle seam after the two ends of the raw material strip collide. A cylindrical sponge is provided at the end of the tightening roller to prevent the tightening roller from scratching the raw material strip. Two pressing plates are provided, one for limiting the upper position of the middle seam folding, and the other for limiting the lower position of the middle seam folding.

[0042] In this embodiment, it is further configured that a second traction roller 13 is provided between the inspection unit and the heat sealing unit, and the second traction roller is connected to the output end of a second traction motor, which is not drawn in the figure.

[0043] In this embodiment, a track platform 15 is further arranged below the cutting unit, and a conveyor belt 16 is arranged on the surface of the track platform. The track platform is used to receive the sheared packaging bags and move the packaging bags along the production direction through the conveyor belt.

[0044] In this embodiment, support rollers 17 are further arranged between the heat sealing unit and the heat pressing unit and between the heat pressing unit and the cutting unit to prevent the raw material strips between two adjacent units from sagging and wrinkling, which would affect product quality.

[0045] In this embodiment, a synchronous heat sealing device is further arranged in the cutting unit, and the synchronous heat sealing device is used to heat seal the cutting direction of the raw material strip after hot pressing. Since the synchronous heat sealing device and the cutting unit are arranged synchronously, it is avoided that the cutting unit mistakenly cuts to the heat sealing part during cutting, thereby affecting the product quality.

[0046] Example 2:

[0047] In this embodiment, if Figure 1 As shown, two embedded plates 14 are provided between the heat sealing unit and the heat pressing unit. The two embedded plates are respectively located on both sides of the heat-sealed raw material strip, one embedded plate is higher than the heat-sealed raw material strip, and the other embedded plate is lower than the heat-sealed raw material strip. The two embedded plates play a supporting and limiting role for the raw material strip.

[0048] In the production process of another type of composite packaging bag, such as an eight-side sealed bag or an accordion bag, the two embedded plates are arranged to separate the two sides of the raw material strip to prevent the edges of the two sides of the raw material strip from sticking together when they are folded inward.

[0049] Example 3:

[0050] In this embodiment, if Figure 2 As shown, the positioning plate includes a rectangular flat plate and an inclined plate. The inclined plate can make the raw material fold inward when the raw material strip passes through, and the rectangular flat plate can make the raw material strip have a stable coating shape after folding. The surface of the rectangular flat plate is connected to the frame through a connecting component. According to the actual specifications of the composite packaging bags produced, the positioning plate connected to the connecting component can be replaced to meet the production of composite packaging bags.

[0051] The working principle of the processing mechanism of the composite packaging bag is as follows: the raw material strip is conveyed along the production direction under the action of the first traction roller, the raw material strip is folded inward to cover the positioning plate when passing through the inclined surface of the positioning plate, the tightening roller gradually tightens the two ends of the raw material strip inward, and the center seam of the raw material strip after the two ends collide is folded and limited under the action of the pressing plate, and is inspected by the inspection unit; the folded raw material strip is conveyed along the production direction under the action of the second traction roller, and passes through the heat sealing unit, the hot pressing unit and the cutting unit in turn to complete the heat sealing of the center seam of the folded raw material strip, the hot pressing of the heat-sealed raw material strip, and the synchronous heat sealing and cutting of the raw material strip after hot pressing; the cutting packaging bag is then transported and packaged via the conveyor belt on the track platform.

[0052] In the description of the present utility model, it should be noted that when terms such as "upper", "lower", "inner", "outer", "left", "right" and the like indicating orientation or positional relationship appear, it should be understood that the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the equipment or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, when terms such as "first" and "second" appear, they are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, terms such as "installation", "setting", and "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

Claims

1. A composite packaging bag processing mechanism, comprising a frame, characterized in that: A feeding unit, a pulling unit, a folding unit, an inspection unit, a heat sealing unit, a heat pressing unit and a cutting unit are sequentially installed on the frame along the production direction of the composite packaging bag; A feeding unit, which is arranged at one end of the frame and contains raw material rolls; A pulling unit, which is connected to the feeding unit, is wound with a raw material strip and pulls the raw material strip in a production direction; A folding unit, which is connected to the pulling unit and is used to fold and compact the raw material strips; An inspection unit, which is connected to the folding unit and is used to inspect whether the raw material strip is folded; A heat sealing unit, which is connected to the inspection unit and is used to heat seal the middle section of the folded raw material strip; A heat pressing unit, which is connected to the heat sealing unit and is used to heat press and heat seal the two sides of the raw material strip; The cutting unit is connected with the second heat sealing unit and is used for cutting the raw material strips after heat pressing.

2. A composite packaging bag processing mechanism according to claim 1, characterized in that: The feeding unit includes: A feeding roller is arranged at the starting end of the frame in the production direction, a raw material roll is passed through the feeding roller, and the feeding roller is connected to the pulling unit through the raw material strip.

3. A composite packaging bag processing mechanism according to claim 2, characterized in that: The pulling unit includes: A tensioning roller group, the tensioning roller group comprises a plurality of tensioning rollers, the tensioning roller group is arranged in an array, and the tensioning roller of the tensioning roller group close to one end of the feeding roller is connected to the feeding roller through a raw material strip; The first traction roller is connected to the tension roller at one end of the tension roller group away from the feeding roller through the raw material strip, and the first traction roller is connected to the output end of the first traction motor.

4. A composite packaging bag processing mechanism according to claim 1, characterized in that: The folding unit includes: Sliding rollers, the sliding roller array is arranged on the frame, and is used to support the raw material strip and reduce the friction of the raw material strip sliding along the production direction; A positioning plate, which is located above the sliding roller, so that the raw material strip is folded inward along both ends of the positioning plate to cover the positioning plate; A tightening roller, which is located above the positioning plate and is used to gradually tighten the two ends of the raw material strip inward; The pressing plate is located above the positioning plate and behind the tightening roller. The pressing plate is used to limit the folding of the middle seam after the two ends of the raw material strip collide with each other.

5. The processing mechanism for a composite packaging bag according to claim 1, characterized in that: A second traction roller is arranged between the inspection unit and the heat sealing unit, and the second traction roller is connected to the output end of the second traction motor.

6. A composite packaging bag processing mechanism according to claim 1, characterized in that: Two embedded disks are arranged between the heat sealing unit and the heat pressing unit. The two embedded disks are respectively located on both sides of the heat-sealed raw material strip. One embedded disk is higher than the heat-sealed raw material strip, and the other embedded disk is lower than the heat-sealed raw material strip.

7. A composite packaging bag processing mechanism according to claim 1, characterized in that: A track platform is provided under the cutting unit, and a conveyor belt is provided on the surface of the track platform. The track platform is used to receive the cut packaging bags and move the packaging bags along the production direction through the conveyor belt.

8. The processing mechanism for a composite packaging bag according to claim 1, characterized in that: Support rollers are arranged between the heat sealing unit and the heat pressing unit and between the heat pressing unit and the cutting unit.

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