Packaging bag feeding device

Abstract

A packaging bag feeding device belongs to the technical field of hotpot condiment packaging and material transferring and conveying and comprises a concave shell seat, a plurality of mounting arms are mounted on two sides of one end of the concave shell seat respectively, placing parts are mounted at the upper ends of the mounting arms, and packaging bags are stacked in the placing parts. The invention aims to prevent the packaging bag from being damaged due to slight opening of the packaging bag when the packaging bag is transferred forwards. And a feeding mechanism is arranged at one end of the concave shell base, the feeding mechanism is used for taking out the packaging bags at the bottom of the containing component, transferring the packaging bags and adjusting the packaging bags in the horizontal posture to be in the vertical posture during transferring, the packaging bags are fed in a single-air-cylinder driving mode, and therefore the energy consumption requirement is lowered, and the fault rate is reduced. When the packaging bags are transferred, the packaging bags can be transferred only by adsorbing the lower sides of the packaging bags, and sufficient rigidity is provided for transferring the packaging bags.

Description

Technical Field

[0001] The present invention relates to the technical field of hot pot base packaging and material transfer and transportation, and particularly relates to a bag loading device for packaging bags. Background Art

[0002] The packaging of hot pot base needs to take into account barrier properties, mechanical protection, and production economy. In the prior art, bag packaging is generally adopted, and its packaging materials are mainly composite materials such as polyester / polyethylene PET / PE, nylon / polyethylene NY / PE, etc. High barrier performance is achieved through a multi-layer co-extrusion process, which can effectively isolate the penetration of oxygen and moisture and extend the shelf life. However, there are significant technical bottlenecks in the automatic bag loading device for bag packaging: Currently, the mainstream bag-grabbing type automatic bagging and sealing device uses a multi-cylinder linkage structure to achieve the attitude adjustment and transfer of packaging bags, and it has the following characteristics: Complex mechanical structure: The bag loading component of the packaging bag is driven by a combination of a lifting cylinder, a forward pushing cylinder, and a rotating cylinder. The lifting cylinder is fixed to the movable end of the forward pushing cylinder, and the attitude of the packaging bag is adjusted from horizontal to vertical by the rotating cylinder. Although this structure can complete the basic functions, the multi-cylinder linkage increases the equipment cost by more than 30%, and pneumatic components are prone to failures caused by seal aging or air path blockage, with a high maintenance frequency and a failure rate of about 15%-20%; Risk of damage to packaging bags: When the lifting cylinder directly pulls down the adsorbed packaging bag, there is a lack of a buffer device, and hard pulling is likely to cause the rupture of the aluminum foil composite layer or the cracking of the sealing edge, especially having a significant impact on the packaging bags of high-viscosity base materials with a butter content exceeding 70%; Insufficient adsorption stability: The gravity of the packaging bag stacking area depends on the pressure of the upper bag body. When the stacking quantity decreases, the vacuum suction cup is prone to leakage or deviation due to insufficient adsorption force, and frequent replenishment of materials is required, affecting continuous production.

[0003] In summary, the existing hot pot base packaging bag loading devices have the following common defects: Power redundancy: The multi-cylinder drive results in high energy consumption and many fault points; Lack of flexibility: The rigidity of mechanical actions is prone to damage thin-walled composite materials; Poor adaptability: The stacking gravity compensation mechanism is missing and cannot adapt to dynamic production conditions. Summary of the Invention

[0004] The present invention provides a bag loading device for packaging bags to solve the above-mentioned deficiencies of the prior art, solve the problems of relatively high equipment cost, relatively high failure rate, and the impact on the bag unloading of packaging bags when the number of packaging bags decreases, and has strong practicability.

[0005] In order to achieve the object of the present invention, the following technologies are proposed: A packaging bag feeding device includes a concave shell base. On both sides of one end of the concave shell base, a plurality of mounting arms are respectively installed by screws. At the upper ends of the mounting arms, placing components are installed. The packaging bags are stacked and placed in the placing components. After being placed, the bag mouths of the packaging bags face the rear end. This placing posture is adopted to avoid damage to the packaging bags caused by the slightly opened bag mouths when the packaging bags are transferred forward. At one end of the concave shell base, a feeding mechanism is provided. The feeding mechanism is used to take out the packaging bag at the bottom of the placing component, transfer the packaging bag, and adjust the horizontally placed packaging bag to a vertical posture during the transfer. The feeding mechanism adopts a single-cylinder driving method, which reduces the failure rate while meeting the packaging bag feeding operation.

[0006] Further, the placing component includes a pair of parallel side plates. The side plates are installed at the upper ends of the mounting arms on the same side by screws. At the front ends of the side plates, mounting strips are bent outward. On the mounting strips, front plates are installed by screws. At the lower ends of the side plates, lower plates are installed by screws. Grooves are formed on the lower plates, and the front ends of the grooves are open. There is a discharging gap between the lower end of the front plate and the upper wall of the lower plate. The placing cavity formed by the side plates, the lower plates and the front plates facilitates placing the stacked packaging bags between the side plates on the lower plates, and the provided discharging gap facilitates the discharging operation of the packaging bags.

[0007] Further, rectangular windows are formed on the side plates. A concave pressing plate is movably arranged between the side plates. The two sides of the concave pressing plate extend out of the rectangular windows. On both sides of the concave pressing plate, moving outer plates are respectively welded. At both ends of the moving outer plates, a pair of inner shafts are respectively fixed. Limiting wheels are rotatably arranged on the inner shafts. On the outer peripheries of the limiting wheels at the same end, limiting plates are tangent. The limiting plates are installed on the side plates by screws. A counterweight block is installed on the outer side of the moving outer plate by screws. The counterweight block increases the weight of the concave pressing plate, and the limiting wheels provide sufficient weight for the downward movement of the concave pressing plate. In addition, when the number of packaging bags decreases, the posture of the packaging bags can still be ensured under the gravity provided by the counterweight block, so as to facilitate the discharging operation. The setting of the limiting wheels reduces the friction force for the movement of the concave pressing plate.

[0008] Further, a ring groove is formed on the outer periphery of the limiting wheel, and a guide bar is formed on the inner wall of the limiting plate. The inner wall of the guide bar is tangent to the circumferential side of the ring groove. The cooperation of the guide bar and the ring groove improves the limiting and guiding effect.

[0009] Furthermore, the feeding mechanism includes a mounting seat installed on the inner wall of the vertical section of the concave shell seat by screws. A cylinder is installed at the upper end of the mounting seat, and a movable seat is fixed to the movable end of the cylinder. A rotating shaft is rotatably provided on the movable seat. A pair of connecting arms are symmetrically fixed to the rotating shaft through a spline structure. The upper ends of the connecting arms are installed with suction boxes by screws. A plurality of air holes are opened at the upper end of the suction box. One end of the suction box is communicated with a ventilation pipe. I-shaped seats are respectively fixed to both ends of the rotating shaft through a spline structure. Guide members are respectively installed on the inner wall of the vertical section of the concave shell seat by screws. The length direction of the guide member is parallel to the moving direction of the cylinder. Both ends of the rotating shaft pass through the guide member, and the I-shaped seat moves within the guide member. This feeding mechanism reduces the manufacturing cost of the entire device by means of a single cylinder drive, and can also discharge and adjust the posture of the packaging bag with the help of the guide member under the condition of using fewer drive sources. And the above-provided solution adsorbs the packaging bag through two suction boxes in a rectangular structure. One is to ensure the stiffness of the packaging bag during discharging, and the other is to have a stronger adsorption capacity compared with the existing suction cup structure.

[0010] Furthermore, a guide groove is opened on the outer wall of the guide member. The upper plane of the I-shaped seat abuts against the upper wall of the guide groove, and the lower plane of the I-shaped seat abuts against the lower wall of the guide groove. A kidney-shaped hole is communicated with the guide groove. A kidney-shaped hole is opened on the guide member, and the rotating shaft passes through the kidney-shaped hole. An avoidance opening is opened on the upper wall at the front end of the guide groove, and an L-shaped groove is opened on the lower wall at the front end of the guide groove. A baffle is provided at the front end of the guide member. The upper end of the baffle protrudes from the lower wall of the guide groove, and the rear wall of the baffle, the front wall of the L-shaped groove, and the lower wall of the L-shaped groove form an embedded groove. When the I-shaped seat moves within the guide groove, due to the guiding function of the guide groove, the suction box moves horizontally forward. During this process, the suction box horizontally pushes out the packaging bag at the bottom from the lower end of the placement component. When the front end of the lower plane of the I-shaped seat acts on the inner wall of the baffle, the forward movement of the I-shaped seat will be blocked and it will rotate into the embedded groove. The rotation of the I-shaped seat will cause the rotating shaft and the suction box to rotate, and finally the suction box and the packaging bag adsorbed on it will be in a vertical posture.

[0011] Furthermore, the length of the upper plane of the I-shaped seat is less than the length of its lower plane. This structural design is mainly to facilitate the contact between the lower plane of the I-shaped seat and the baffle, so that the rotating shaft rotates. Optionally, a plurality of rollable balls can be embedded on the upper plane and the lower plane of the I-shaped seat to reduce the resistance during discharging and the wear of the I-shaped seat and the guide groove.

[0012] Furthermore, an R angle is provided at the junction of the L-shaped groove and the guide groove, which provides flexibility for the rotation of the I-shaped seat.

[0013] Furthermore, the width of the embedded groove is greater than the thickness of the lower plane of the I-shaped seat, and the thickness of the baffle is less than the distance between the upper plane and the lower plane of the I-shaped seat. This structural design can ensure that the front end of the lower plane of the I-shaped seat is inserted into the embedded groove.

[0014] The advantages of the above technical solution are as follows: The present invention uses a single-cylinder drive method for feeding the packaging bags, thereby reducing the energy consumption requirement and the failure rate.

[0015] When the present invention transfers the packaging bags, only the lower side of the packaging bags needs to be adsorbed for the transfer of the packaging bags, and the structural design of the suction box provides sufficient rigidity for the transfer of the packaging bags.

[0016] The present invention has strong adaptability when transferring the packaging bags, and it adapts to the dynamic production conditions through the method of gravity compensation. Description of the Drawings

[0017] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings.

[0018] Figure 1 Shows a three-dimensional structure diagram of the packaging bag feeding device.

[0019] Figure 2 Shows a three-dimensional structure diagram of the placing component from the first perspective.

[0020] Figure 3 Shows a three-dimensional structure diagram of the placing component from the second perspective.

[0021] Figure 4 Shows a three-dimensional structure diagram of the feeding mechanism.

[0022] Figure 5 Shows a three-dimensional structure diagram of the component for sucking the packaging bags in the feeding mechanism.

[0023] Figure 6 Shows a three-dimensional structure diagram of the guiding member from the first perspective.

[0024] Figure 7 Shows a three-dimensional structure diagram of the guiding member from the second perspective.

[0025] Description of the Reference Numerals: Concave shell base 1, mounting arm 2, placing component 3, feeding mechanism 4, side plate 300, rectangular window 301, lower plate 302, groove 303, front plate 304, discharge gap 305, concave pressing plate 306, moving outer plate 307, inner shaft 308, limiting wheel 309, annular groove 310, counterweight 311, limiting plate 312, guide bar 313, mounting bar 314, mounting seat 400, cylinder 401, movable seat 402, rotating shaft 403, connecting arm 404, suction box 405, air eye 406, ventilation pipe 407, I-shaped seat 408, guiding member 409, guide groove 410, kidney-shaped hole 411, limiting ring 412, L-shaped groove 413, baffle 414, avoidance opening 415. Detailed implementation mode

[0026] As Figure 1 shown, a packaging bag loading device includes a concave shell base 1. On both sides of one end of the concave shell base 1, a plurality of mounting arms 2 are respectively installed by screws. At the upper end of the mounting arm 2, a placing component 3 is installed. The packaging bags are stacked and placed in the placing component 3. At one end of the concave shell base 1, a feeding mechanism 4 is provided. The feeding mechanism 4 is used to take out the packaging bag at the bottom of the placing component 3, transfer the packaging bag, and adjust the horizontally placed packaging bag to a vertical posture during the transfer.

[0027] Specifically, as Figure 2 and Figure 3 shown, the placing component 3 includes a pair of parallel side plates 300. The side plates 300 are installed at the upper ends of the mounting arms 2 on the same side by screws. At the front end of the side plate 300, a mounting strip 314 is bent outwards. A front plate 304 is installed on the mounting strip 314 by screws. At the lower end of the side plate 300, a lower plate 302 is installed by screws. A groove 303 is formed on the lower plate 302. The front end of the groove 303 is open. There is a discharging gap 305 between the lower end of the front plate 304 and the upper wall of the lower plate 302.

[0028] In some embodiments, a rectangular window 301 is formed on the side plate 300 of the placing component 3. A concave pressing plate 306 is movably arranged between the side plates 300. The two sides of the concave pressing plate 306 extend out of the rectangular window 301. Moving outer plates 307 are respectively welded on the two sides of the concave pressing plate 306. A pair of inner shafts 308 are respectively fixed at the two ends of the moving outer plate 307. A limiting wheel 309 is rotatably arranged on the inner shaft 308. A limiting plate 312 is tangent to the outer periphery of the limiting wheels 309 at the same end. The limiting plate 312 is installed on the side plate 300 by screws. A counterweight 311 is installed on the outer side of the moving outer plate 307 by screws.

[0029] In some embodiments, a ring groove 310 is formed on the outer periphery of the limiting wheel 309 of the placing component 3. A guide bar 313 is formed on the inner wall of the limiting plate 312. The inner wall of the guide bar 313 is tangent to the peripheral side of the ring groove 310.

[0030] Specifically, as Figure 1 and Figures 4 to 7As shown, the feeding mechanism 4 includes a mounting seat 400 installed on the inner wall of the vertical section of the concave shell seat 1 by screws, a cylinder 401 is installed on the upper end of the mounting seat 400, a movable seat 402 is fixed to the movable end of the cylinder 401, a rotating shaft 403 is rotatably provided on the movable seat 402, a pair of connecting arms 404 are symmetrically fixed on the rotating shaft 403, a suction box 405 is installed on the upper end of the connecting arm 404 by screws, a plurality of air holes 406 are provided on the upper end of the suction box 405, one end of the suction box 405 is connected to a ventilation pipe 407, and a work-shaped seat 408 is fixed to both ends of the rotating shaft 403, and the length of the upper plane of the work-shaped seat 408 is less than the length of its lower plane.

[0031] The inner wall of the vertical section of the concave shell seat 1 is respectively installed with guide members 409 by screws. The length direction of the guide members 409 is parallel to the moving direction of the cylinder 401. Both ends of the rotating shaft 403 pass through the guide members 409, and the I-shaped seat 408 moves in the guide members 409.

[0032] Specifically, if Figure 6 and Figure 7 As shown, the outer wall of the guide member 409 is provided with a guide groove 410, the upper plane of the work-shaped seat 408 abuts against the upper wall of the guide groove 410, the lower plane of the work-shaped seat 408 abuts against the lower wall of the guide groove 410, the waist-shaped hole 411 is connected with the guide groove 410, the guide member 409 is provided with a waist-shaped hole 411, the rotating shaft 403 is penetrated in the waist-shaped hole 411, and the two ends of the rotating shaft 403 are fixed with a limiting ring 412 by a pin, and the limiting ring 412 is located at the guide member 409. On the inner side of the guide member 409, the front upper wall of the guide groove 410 is provided with an avoidance opening 415, the front lower wall of the guide groove 410 is provided with an L-shaped groove 413, the junction of the L-shaped groove 413 and the guide groove 410 has an R angle, and the front end of the guide member 409 is provided with a baffle 414, the upper end of the baffle 414 protrudes from the lower wall of the guide groove 410, and the rear wall of the baffle 414, the front wall of the L-shaped groove 413 and the lower wall of the L-shaped groove 413 form an embedded groove. The width of the embedded groove is greater than the thickness of the lower plane of the work-shaped seat 408, and the thickness of the baffle 414 is less than the distance between the upper plane and the lower plane of the work-shaped seat 408.

[0033] In the present embodiment, when operating, the operator places the stacked packages in the placing component 3. When placing, the operator moves the concave pressing plate 306 upwards, and then places the stacked packages between the concave pressing plate 306 and the lower plate 302, and when placing, the operator also needs to ensure that the bag opening of the packaging bag faces backward. Then, the pulling force on the concave pressing plate 306 is released, and then the concave pressing plate 306 acts on the upper end of the packaging bag under the gravity provided by the counterweight block 311.

[0034] Subsequently, the transfer operation of the packaging bag is carried out. Before the transfer: The suction box 405 is located at the groove 303 of the lower plate 302, and the suction box 405 is in contact with the packaging bag at the bottom layer. After that, the vacuum pump is started to generate a negative pressure between the air hole 406 on the suction box 405 and the packaging bag, and the packaging bag at the bottom layer is adsorbed on the suction box 405 by means of negative pressure suction.

[0035] During the transfer: The cylinder 401 is started. Driven by the cylinder 401, the movable seat 402 and the rotating shaft 403 thereon move forward along the length direction of the kidney-shaped hole 411. When the rotating shaft 403 moves forward, the I-shaped seat 408 moves forward in the guide groove 410 and until the I-shaped seat 408 is located at the avoidance port 415, and the front end of the lower plane of the I-shaped seat 408 acts on the inner wall of the baffle 414. With the further action of the cylinder 401, the front end of the lower plane of the I-shaped seat 408 will rotate into the inner groove, and the rotation of the I-shaped seat 408 will cause the suction box 405 to change from a horizontal posture to a vertical posture, and at this time, the bag mouth of the packaging bag is upward, and then the packaging operation of the hot pot base material is performed.

[0036] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A packaging bag feeding device, characterized in that, It includes a concave shell base (1). On both sides of one end of the concave shell base (1), a plurality of mounting arms (2) are respectively installed by screws. A placing component (3) is installed at the upper end of the mounting arms (2). During application, packaging bags are stacked and placed in the placing component (3). At one end of the concave shell base (1), a feeding mechanism (4) is provided. The feeding mechanism (4) is used to take out the packaging bags at the bottom of the placing component (3), transfer the packaging bags, and adjust the horizontally placed packaging bags to a vertical posture during the transfer.

2. The bag feeding device according to claim 1, characterized in that, The placing component (3) includes a pair of parallel side plates (300). The side plates (300) are installed at the upper ends of the mounting arms (2) on the same side by screws. At the front end of the side plates (300), an installation strip (314) is bent outward. A front plate (304) is installed on the installation strip (314) by screws. At the lower end of the side plates (300), a lower plate (302) is installed by screws. A groove (303) is formed on the lower plate (302). The front end of the groove (303) is open. There is a discharge gap (305) between the lower end of the front plate (304) and the upper wall of the lower plate (302).

3. The bag packaging material feeding device according to claim 2, wherein, A rectangular window (301) is formed on the side plates (300). A concave pressing plate (306) is movably arranged between the side plates (300). Both sides of the concave pressing plate (306) extend out of the rectangular window (301). Moving outer plates (307) are respectively welded to both sides of the concave pressing plate (306). A pair of inner shafts (308) are respectively fixed at both ends of the moving outer plates (307). A limiting wheel (309) is rotatably arranged on the inner shafts (308). A limiting plate (312) is tangent to the outer periphery of the limiting wheels (309) at the same end. The limiting plate (312) is installed on the side plates (300) by screws. A counterweight block (311) is installed on the outer side of the moving outer plates (307) by screws.

4. The packaging bag feeding device according to claim 3, wherein A ring groove (310) is formed on the outer periphery of the limiting wheel (309). A guide bar (313) is formed on the inner wall of the limiting plate (312). The inner wall of the guide bar (313) is tangent to the circumferential side of the ring groove (310).

5. The bag packaging material feeding device according to claim 3, characterized in that The feeding mechanism (4) includes a mounting seat (400) installed on the inner wall of the vertical section of the concave shell base (1) by screws. A cylinder (401) is installed at the upper end of the mounting seat (400). A movable seat (402) is fixed at the movable end of the cylinder (401). A rotating shaft (403) is rotatably arranged on the movable seat (402). A pair of connecting arms (404) are symmetrically fixed on the rotating shaft (403). A suction box (405) is installed at the upper end of the connecting arms (404) by screws. A plurality of air holes (406) are formed at the upper end of the suction box (405). A ventilation pipe (407) is communicated with one end of the suction box (405). I-shaped seats (408) are respectively fixed at both ends of the rotating shaft (403); Guide members (409) are respectively installed on the inner walls of the vertical sections of the concave shell base (1) by screws. The length direction of the guide members (409) is parallel to the moving direction of the cylinder (401). Both ends of the rotating shaft (403) pass through the guide members (409), and the I-shaped seats (408) move in the guide members (409).

6. The bag packaging material feeding device according to claim 5, wherein, The outer wall of the guide member (409) is provided with a guide groove (410). The upper plane of the I-shaped seat (408) abuts against the upper wall of the guide groove (410), and the lower plane of the I-shaped seat (408) abuts against the lower wall of the guide groove (410). The waist-shaped hole (411) communicates with the guide groove (410). The guide member (409) is provided with a waist-shaped hole (411). The rotating shaft (403) passes through the waist-shaped hole (411). An avoidance opening (415) is provided in the upper wall at the front end of the guide groove (410), and an L-shaped groove (413) is provided in the lower wall at the front end of the guide groove (410). A baffle (414) is provided at the front end of the guide member (409). The upper end of the baffle (414) protrudes from the lower wall of the guide groove (410), and the rear wall of the baffle (414), the front wall of the L-shaped groove (413), and the lower wall of the L-shaped groove (413) form an embedded groove.

7. The bag packaging feeding device according to claim 6, characterized in that, The length of the upper plane of the I-shaped seat (408) is less than the length of its lower plane.

8. The packaging bag feeding device according to claim 6, characterized in that, The junction of the L-shaped groove (413) and the guide groove (410) has an R angle.

9. The bag loading device according to claim 6, characterized in that, The width of the embedded groove is greater than the thickness of the lower plane of the I-shaped seat (408), and the thickness of the baffle (414) is less than the distance between the upper plane and the lower plane of the I-shaped seat (408).

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