Bag folding and sealing device

Abstract

The present invention discloses a bag folding and sealing device, which specifically includes a bag feeding mechanism, a platform plate, a first driving mechanism, a bag supporting mechanism, a bag folding mechanism, a second driving mechanism, a mounting plate, a heat sealing seat and a bag pressing mechanism. The bag feeding mechanism is arranged at the end of a bagging machine and is used to transport bags containing materials. The various mechanisms are arranged on a machine frame in sequence according to a processing sequence. The present invention arranges a bag feeding mechanism, a platform plate, a first driving mechanism, a bag supporting mechanism, a bag folding mechanism, a second driving mechanism, a heat sealing seat, a bag pressing mechanism and a cutting mechanism. Under the coordinated action of the various mechanisms, mechanical actions are used to perform steps such as bag feeding, bag supporting, bag folding, bag pressing, heat sealing and cutting on the bags, so that the bags containing materials can be automatically packaged, with a high degree of automation and high action efficiency, thereby improving production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging machines, and particularly relates to a bag folding and sealing device. Background Art

[0002] With the increasing abundance of goods, people's consumption concepts, consumption patterns, and values ​​have changed significantly. Many items in daily life need to be packed in bags to keep them fresh. Currently, most packaging methods are still manual or a combination of mechanical and manual methods. For example, items are placed on an assembly line and conveyed to workers, who then bag them. To address this problem, belting machines have been designed to bag items. However, after bagging, the bags are usually sealed manually or sent directly to a packaging machine for packaging. However, before packaging, a person still needs to manually hold the bag before packaging, resulting in a low degree of automation and low efficiency. Summary of the Invention

[0003] The object of the present invention is to provide a bag folding and sealing device that solves the above-mentioned technical problems.

[0004] To achieve the above object, the technical solution of the present invention is: a bag folding and sealing device, including a frame, and also including:

[0005] a bag feeding mechanism, the bag feeding mechanism being arranged on the frame;

[0006] a platform plate, the platform plate being slidably disposed on the frame and located on one side of the bag feeding mechanism;

[0007] a first driving mechanism, which is disposed on the frame and connected to the platform plate, and drives the platform plate to move toward or away from the bag feeding mechanism;

[0008] A bag-holding mechanism, which is arranged on the platform and extends into the bag to hold it open;

[0009] Bag folding mechanisms, wherein two bag folding mechanisms are arranged on the platform plate and located on both sides of the bag supporting mechanism, and move toward each other from both sides of the bag to fold the bag;

[0010] a second driving mechanism, the second driving mechanism being arranged on the frame and below the platform plate, the second driving mechanism being connected to a mounting plate, the mounting plate being arranged on the frame through guide pillars and above the platform plate;

[0011] A heat sealing seat, the heat sealing seat being arranged at the bottom of the mounting plate;

[0012] The bag pressing mechanism is arranged on the mounting plate and presses down to the two folded edges of the bag.

[0013] Preferably, the bag feeding mechanism includes a bag receiving plate and a conveyor belt, the conveyor belt is arranged on the frame, and the bag receiving plate is arranged on the conveyor belt.

[0014] Preferably, the first driving mechanism includes a motor mounting seat arranged on the frame, a first motor arranged on the motor mounting seat, a mounting plate arranged on the motor shaft of the first motor and a connecting rod arranged on the mounting plate, the other end of the connecting rod is connected to the platform plate, and the platform plate is slidably arranged on the motor mounting seat.

[0015] Preferably, the bag-supporting mechanism includes a support plate, a transverse support plate mounting seat, a longitudinal support plate mounting seat, a first driving cylinder and a second driving cylinder. The two first driving cylinders are relatively arranged on the platform plate through a connecting plate and connected to the two transverse support plate mounting seats. The two second driving cylinders are longitudinally arranged on the connecting plate and are located on both sides of the platform plate. The two second driving cylinders are respectively connected to the two longitudinal support plate mounting seats. The longitudinal support plate mounting seat is perpendicular to the transverse support plate mounting seat. The four support plates pass through the longitudinal support plate mounting seat and the transverse support plate mounting seat in turn and are slidably arranged in the longitudinal support plate mounting seat and the transverse support plate mounting seat.

[0016] Preferably, the bag folding mechanism includes a third driving cylinder and a folding plate, the third driving cylinder is relatively arranged on the platform plate, and the folding plate is connected to the third driving cylinder.

[0017] Preferably, the second driving mechanism includes a second motor and a connecting rod assembly, the second motor is arranged on the frame, and the connecting rod assembly connects the second motor and the mounting plate.

[0018] Preferably, the connecting rod assembly includes a first connecting rod, a second connecting rod and a third connecting rod, the first connecting rod is connected to the second motor, the third connecting rod is rotatably connected to the first connecting rod and the fixed plate on the frame, and the second connecting rod is rotatably connected to the first connecting rod and the mounting plate.

[0019] Preferably, the bag pressing mechanism includes a fourth driving cylinder, a pressure rod and a cylinder mounting plate, the cylinder mounting plate is arranged above the mounting plate, the fourth driving cylinder is arranged on the cylinder mounting plate, a pressure rod mounting plate is provided on the cylinder rod of the fourth driving cylinder, and the two pressure rods are arranged at both ends of the pressure rod mounting plate.

[0020] Preferably, a cutting mechanism is further provided at the bottom of the mounting plate, and the cutting mechanism is located at the front end of the bag pressing mechanism.

[0021] Preferably, the cutting mechanism includes a fifth driving cylinder and a cutter, the fifth driving cylinder is arranged on the mounting plate, and the cutter is connected to the cylinder rod of the fifth driving cylinder.

[0022] Compared with the prior art, the beneficial effects of the present invention are: by setting up the coordinated effects of various mechanisms such as the bag feeding mechanism, the platform plate, the first drive mechanism, the bag supporting mechanism, the bag folding mechanism, the second drive mechanism, the heat sealing seat, the bag pressing mechanism and the cutting mechanism, the bag is fed, supported, folded, pressed, heat sealed, cut and other steps are performed by using a mechanical structure, so that bags filled with materials can be automatically packaged, with a high degree of automation and high operation efficiency, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention.

[0024] Figure 2 This is a schematic diagram of the installation structure of the bag-supporting mechanism and the connecting rod assembly of the present invention.

[0025] Figure 3 This is a schematic diagram of the installation structure of the bag pressing mechanism of the present invention.

[0026] Figure 4 Schematic diagram of the support rod structure of the present invention.

[0027] In the figure: frame 100, fixed plate 101, bag feeding mechanism 200, bag storage plate 201, conveyor belt 202, platform plate 300, first drive mechanism 400, motor mounting seat 401, first motor 402, mounting plate 403, connecting rod 404, slide rail 405, bag supporting mechanism 500, supporting plate 501, transverse supporting plate mounting seat 502, longitudinal supporting plate mounting seat 503, first driving cylinder 504, second driving cylinder 505, connecting plate 506, bag folding mechanism 600 , the third driving cylinder 601, the folding plate 602, the second driving mechanism 700, the second motor 701, the connecting rod assembly 702, the first connecting rod 7021, the second connecting rod 7022, the third connecting rod 7023, the mounting plate 800, the guide column 900, the heat sealing seat 1000, the bag pressing mechanism 1100, the fourth driving cylinder 1101, the pressure rod 1102, the cylinder mounting plate 1103, the pressure rod mounting plate 1104, the mounting frame 1105, the fifth driving cylinder 1200, and the collection box 1300. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0029] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0030] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0031] like Figures 1 to 4As shown, an embodiment of the present invention provides a bag folding and sealing device, including a frame 100, and also including: a bag feeding mechanism 200, the bag feeding mechanism 1 is arranged on the frame 100; a platform plate 300, the platform plate 300 is slidably arranged on the frame 100 and is located on one side of the bag feeding mechanism 200; a first driving mechanism 400, the first driving mechanism 400 is arranged on the frame 100 and connected to the platform plate 300, driving the platform plate 300 to move closer to or away from the bag feeding mechanism 1; a bag holding mechanism 500, the bag holding mechanism 500 is arranged on the platform plate 300, and extends into the bag entering to hold it open; a bag folding mechanism 600, two bag folding mechanisms 600 00 is arranged on the platform plate 300 and is located on both sides of the bag-supporting mechanism 500, and moves toward each other from both sides of the bag to fold the bag; the second driving mechanism 700, the second driving mechanism 700 is arranged on the frame 100 and is located below the platform plate 300, the second driving mechanism 700 is connected to the mounting plate 800, and the mounting plate 800 is arranged on the frame 100 through the guide column 900 and is located above the platform plate 300; the heat sealing seat 1000, the heat sealing seat 1000 is arranged at the bottom of the mounting plate 800; the bag pressing mechanism 1100, the bag pressing mechanism 1100 is arranged on the mounting plate 800, and the bag pressing mechanism 1100 is pressed down to the two folded edges of the bag.

[0032] The bag in the present invention is preferably an M-shaped packaging bag. After being loaded and bagged by the bagging machine, the bag containing the material will be transported to the bag feeding mechanism 200. When the bag feeding mechanism 200 transports the bag to a certain position, the first driving mechanism 400 works to drive the platform plate 300 to approach the bag at the bag feeding mechanism 200, that is, the bag-stretching mechanism 500 and the bag-folding mechanism 600 installed on the platform plate 300 are close to the bag. The bag-stretching mechanism 500 extends into the bag and then stretches it open, so that the bag can be in a stretched state. At this time, the bag-folding mechanism 600 The bag is worked, and the bag is folded from both sides of the bag, that is, the bag folding mechanism can press the folds of the M-shaped bag, so that the bag opening can be closed. At this time, the bag pressing mechanism 1100 presses down on the folded edges of the bag, so that the position of the bag can be fixed. At this time, the second driving mechanism 700 works, driving the mounting plate 800 to move downward, so that the heat sealing seat 1000 on the mounting plate 800 can heat-seal the bag opening. After the heat sealing is completed, each mechanism returns to its original position, and the bag feeding mechanism 200 continues to feed the bag to the next station.

[0033] In the present invention, the bag feeding mechanism 200 includes a bag receiving plate 201 and a conveyor belt 202. The conveyor belt 202 is arranged on the frame 1, and the bag receiving plate 201 is arranged on the conveyor belt 202. The conveyor belt 202 here can preferably be a chain. Two bag receiving plates 201 are provided and fixed on the chain. The bag is placed between the two bag receiving plates 201.

[0034] The first driving mechanism 400 includes a motor mounting seat 401 arranged on the frame 1, a first motor 402 arranged on the motor mounting seat 401, a mounting plate 403 arranged on the motor shaft of the first motor 402 and a connecting rod 404 arranged on the mounting plate 403, the other end of the connecting rod 404 is connected to the platform plate 300, the platform plate 300 is slidably arranged on the motor mounting seat 401, a slider 301 is provided at the bottom of the platform plate 300, and a slide rail 405 is provided on the surface of the motor mounting seat 401, the slider 301 is slidably arranged on the slide rail 405, the connecting rod 404 is connected to the non-center position of the mounting plate 403, that is, a cam structure, and the rotation of the first motor 402 will drive the rotation of the mounting plate 403, and at the same time, the connecting rod 404 pulls the platform plate 300 to slide on the motor mounting seat 401.

[0035] Specifically, the bag-supporting mechanism 500 includes a support plate 501, a transverse support plate mounting seat 502, a longitudinal support plate mounting seat 503, a first driving cylinder 504 and a second driving cylinder 505. The two first driving cylinders 504 are relatively arranged on the platform plate 300 through a connecting plate 506 and connected to the two transverse support plate mounting seats 502. There are two connecting plates 506, which are symmetrically arranged on the platform plate 300. The two second driving cylinders 505 are longitudinally arranged on the connecting plate 506 and are located on both sides of the platform plate 300. The two second driving cylinders 505 are respectively connected to the two longitudinal support plate mounting seats 503. The longitudinal support plate mounting seat 503 is perpendicular to the transverse support plate mounting seat 502. The four support plates 501 pass through the longitudinal support plate mounting seat 503 in sequence. The shifting support plate mounting seat 503 and the transverse shifting support plate mounting seat 502 are slidably arranged in the longitudinal shifting support plate mounting seat 503 and the transverse shifting support plate mounting seat 502. The longitudinal shifting support plate mounting seat 503 and the transverse shifting support plate mounting seat 502 are both provided with strip holes. The support plate 501 is slidably arranged in the strip holes. One end of the support plate 501 is provided with a slider connected to the strip hole to enable the support plate 501 to slide in the longitudinal shifting support plate mounting seat 503 and the transverse shifting support plate mounting seat 502. The transverse shifting support plate mounting seat 502 is provided with two strip holes distributed up and down, and the longitudinal shifting support plate mounting seat 503 is provided with a strip hole. The strip holes on the transverse shifting support plate mounting seat 502 and the longitudinal shifting support plate mounting seat 503 are roughly cross-shaped when close to each other.

[0036] When the bag comes over to support the bag, the four support plates 501 are close together at this time, and the support plates 501 are extended into the bag. The first driving cylinder 504 and the second driving cylinder 505 work, and the two first driving cylinders 504 drive the two transverse support plate mounting seats 502 to drive the two support plates 501 to open to both sides, and the two second driving cylinders 505 drive the two longitudinal support plate mounting seats 503 to drive the two support plates 501 to open upward, so that the support plates 501 can support the bag.

[0037] Specifically, the bag folding mechanism 600 includes a third driving cylinder 601 and a folding plate 602. The two third driving cylinders 601 are relatively arranged on the platform plate 300. The folding plate 602 is connected to the third driving cylinder 601. The positions of the folding plates 602 are relatively arranged on both sides of the stretched bag. The two third driving cylinders 601 drive the two folded edges to move closer to the middle. When force is applied to the fold of the bag, the bag is subjected to force so that the bag opening fits.

[0038] In this embodiment, the second driving mechanism 700 includes a second motor 701 and a connecting rod assembly 702. The second motor 701 is arranged on the frame 100. The connecting rod assembly 702 connects the second motor 701 and the mounting plate 800. The movement of the mounting plate 800 is driven by the second motor 701 driving the connecting rod assembly 702.

[0039] The two connecting rod assemblies 702 disposed on both sides of the platform plate 300 are connected to each other through a shaft connected to the second motor 701 , so that the two connecting rod assemblies 702 move synchronously.

[0040] Furthermore, the connecting rod assembly 702 includes a first connecting rod 7021, a second connecting rod 7022 and a third connecting rod 7023. The first connecting rod 7021 is connected to the second motor 701. The third connecting rod 7023 is rotationally connected to the first connecting rod 7021 and the fixed plate 101 on the frame 100. The second connecting rod 7022 is rotationally connected to the first connecting rod 7021 and the mounting plate 800. The first connecting rod 7021, the second connecting rod 7022 and the third connecting rod 7023 are rotationally connected to each other. The force is applied by the second motor 701, and the connecting rods transmit to each other, so that the mounting plate 800 can move up and down. Two guide columns 900 are provided, which can make the up and down movement of the mounting plate 800 more stable.

[0041] In this embodiment, the bag pressing mechanism 1100 includes a fourth driving cylinder 1101, a pressure rod 1102 and a cylinder mounting plate 1103. The cylinder mounting plate 1103 is fixed to the top of the guide column 900 and is arranged above the mounting plate 800. The fourth driving cylinder 1101 is arranged on the cylinder mounting plate 1103 through the mounting frame 1105. The fourth driving cylinder 1101 is longitudinally arranged on the mounting plate 800. A pressure rod mounting plate 1104 is provided on the cylinder rod of the fourth driving cylinder 1101. The two pressure rods 1102 are respectively arranged at both ends of the pressure rod mounting plate 1104. The distance between the two pressure rods 1102 is set to be able to press on the two folded edges of the bag, so that the bag can be better compressed.

[0042] Of course, in order to avoid the bag opening being too long and to meet different needs, the bag opening needs to be cut after heat sealing. A cutting mechanism is also provided at the bottom of the mounting plate 800. The cutting mechanism is located at the front end of the bag pressing mechanism 1100. That is, when in action, the bag pressing mechanism 1100 first presses the bag and then the heat sealing seat 1000 heat seals the bag opening, and then the cutting mechanism cuts the bag opening after heat sealing.

[0043] Specifically, the cutting mechanism includes a fifth driving cylinder 1200 and a cutter (not shown in the figure). The length of the cutter is greater than the width of the bag. The fifth driving cylinder 1200 is set on the mounting plate 800. The cutter is connected to the cylinder rod of the fifth driving cylinder 1200. The fifth driving cylinder 1200 extends to drive the cutter to cut the heat-sealed bag.

[0044] A collecting box 1300 is further provided at the bottom end of the bag feeding mechanism 200 , and the collecting box 1300 is used to collect the bags that have been folded and packaged.

[0045] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A bag folding and sealing device, comprising a frame, characterized in that: Also includes: a bag feeding mechanism, the bag feeding mechanism being arranged on the frame; a platform plate, the platform plate being slidably disposed on the frame and located on one side of the bag feeding mechanism; a first driving mechanism, which is disposed on the frame and connected to the platform plate, and drives the platform plate to move toward or away from the bag feeding mechanism; A bag-holding mechanism, which is arranged on the platform and extends into the bag to hold it open; Bag folding mechanisms, wherein two bag folding mechanisms are arranged on the platform plate and located on both sides of the bag supporting mechanism, and move toward each other from both sides of the bag to fold the bag; a second driving mechanism, the second driving mechanism being arranged on the frame and below the platform plate, the second driving mechanism being connected to a mounting plate, the mounting plate being arranged on the frame through guide pillars and above the platform plate; a heat sealing seat, the heat sealing seat being arranged at the bottom of the mounting plate; and A bag pressing mechanism, the bag pressing mechanism is arranged on the mounting plate and presses down to the two folded edges of the bag; The bag supporting mechanism includes a supporting plate, a transverse supporting plate mounting seat, a longitudinal supporting plate mounting seat, a first driving cylinder and a second driving cylinder, the two first driving cylinders are relatively arranged on the platform plate through a connecting plate and connected to the two transverse supporting plate mounting seats, the two second driving cylinders are longitudinally arranged on the connecting plate and are located on both sides of the platform plate, the two second driving cylinders are respectively connected to the two longitudinal supporting plate mounting seats, the longitudinal supporting plate mounting seat and the transverse supporting plate mounting seat are arranged perpendicularly, the four supporting plates pass through the longitudinal supporting plate mounting seat and the transverse supporting plate mounting seat in sequence and are slidably arranged in the longitudinal supporting plate mounting seat and the transverse supporting plate mounting seat; The bag folding mechanism includes a third driving cylinder and a folding plate. The third driving cylinder is relatively arranged on the platform plate, and the folding plate is connected to the third driving cylinder.

2. A bag folding and sealing device according to claim 1, characterized in that: The bag feeding mechanism includes a bag receiving plate and a conveyor belt. The conveyor belt is arranged on the frame, and the bag receiving plate is arranged on the conveyor belt.

3. The bag folding and sealing device according to claim 1, characterized in that: The first driving mechanism includes a motor mounting seat arranged on the frame, a first motor arranged on the motor mounting seat, a mounting plate arranged on the motor shaft of the first motor and a connecting rod arranged on the mounting plate, the other end of the connecting rod is connected to the platform plate, and the platform plate is slidably arranged on the motor mounting seat.

4. The bag folding and sealing device according to claim 1, characterized in that: The second driving mechanism includes a second motor and a connecting rod assembly. The second motor is arranged on the frame. The connecting rod assembly connects the second motor and the mounting plate.

5. The bag folding and sealing device according to claim 4, characterized in that: The connecting rod assembly includes a first connecting rod, a second connecting rod and a third connecting rod. The first connecting rod is connected to the second motor. The third connecting rod is rotatably connected to the first connecting rod and the fixed plate on the frame. The second connecting rod is rotatably connected to the first connecting rod and the mounting plate.

6. The bag folding and sealing device according to claim 1, characterized in that: The bag pressing mechanism includes a fourth driving cylinder, a pressure rod and a cylinder mounting plate. The cylinder mounting plate is arranged above the mounting plate. The fourth driving cylinder is arranged on the cylinder mounting plate. A pressure rod mounting plate is arranged on the cylinder rod of the fourth driving cylinder. The two pressure rods are arranged at both ends of the pressure rod mounting plate.

7. The bag folding and sealing device according to claim 1, characterized in that: A cutting mechanism is also provided at the bottom of the mounting plate, and the cutting mechanism is located at the front end of the bag pressing mechanism.

8. The bag folding and sealing device according to claim 7, characterized in that: The cutting mechanism includes a fifth driving cylinder and a cutter. The fifth driving cylinder is arranged on the mounting plate, and the cutter is connected to the cylinder rod of the fifth driving cylinder.

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