Liquid bag feeding type packaging machine

Abstract

The utility model relates to the technical field of packaging equipment, in particular to a liquid bag feeding type packaging machine which comprises a machine body, a bag feeding assembly, a liquid supply assembly and a heat sealing assembly, and the heat sealing assembly comprises a supporting frame, a first propeller, a first guide rod, an installation frame, a first hinge seat, a hinge rod, a propelling plate, a second hinge seat and a heat sealing plate. The heat sealing assembly adopts a first propeller to push a propelling plate, two sets of mounting frames and a heat sealing plate are driven to move through a hinge rod, and compared with a traditional mode that two sets of air cylinders are matched, the structure is simpler. Only one first propeller (air cylinder) needs to be controlled, complex synchronous control is not needed, and the complexity of equipment is reduced. Moreover, the integrated structure is more convenient for finding problems and debugging and overhauling when the equipment breaks down, so that the downtime is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging equipment, in particular to a liquid bag-feeding packaging machine. Background Art

[0002] The bag-feeding packaging machine is a highly automated packaging equipment, which is widely used in food, medicine, chemical and other industries to achieve efficient packaging of various products.

[0003] When liquids are packaged in bags, heat-sealing separation is used. The traditional heat-sealing separation structure uses two groups of cylinders to push two groups of heat-sealing plates to heat-seal the packaging bags. How to control the synchronous movement of the two groups of cylinders is relatively complicated, and if the equipment is damaged, it is inconvenient to debug and repair. If heat-sealing separation is performed directly, it is easy for the bag to be filled with too much liquid, resulting in liquid spilling when the packaging bag is opened. If large-interval heat-sealing separation is used, it is easy for there to be too much gas in the packaging bag, affecting storage. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a liquid bag-feeding packaging machine.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a liquid bag-feeding packaging machine, comprising a machine body, a bag-feeding assembly and a liquid-feeding assembly, wherein the liquid-feeding assembly is arranged above the front of the machine body, the bag-feeding assembly comprises a film-feeding frame, a bag-closing cover and a bag-closing roller, the machine body is also provided with a film-feeding frame, the bag-closing cover is arranged on the peripheral side of the output end of the liquid-feeding assembly, the front of the machine body is also provided with two sets of bag-closing rollers, and the two sets of bag-closing rollers are arranged below the output end of the liquid-feeding assembly, and further comprising:

[0008] A heat sealing assembly, the heat sealing assembly comprising a support frame, a first thruster, a first guide rod, a mounting frame, a first hinge seat, a hinge rod, a thrust plate, a second hinge seat and a heat sealing plate, the support frame being embedded in the machine body, the output end of the first thruster passing through the back side of the support frame and being connected to the thrust plate (11), two groups of first guide rods being arranged horizontally on the front side of the machine body, the two groups of first guide rods being connected to the inner walls on the left and right sides of the support frame, two groups of symmetrically arranged mounting frames being arranged in the support frame, the mounting frames being provided with guide holes matching the first guide rods, the mounting frame being provided with the heat sealing plate on one side close to the center of the support frame, the thrust plate being provided with two groups of symmetrically arranged first hinge seats on one end close to the mounting frame, the mounting frame being provided with the second hinge seat, the first hinge seat being connected to the second hinge seat via a hinge rod.

[0009] In order to facilitate the closing of the upper part of the bag body and prepare for subsequent heat sealing, the present utility model is improved in that a liquid discharging assembly is further provided on the mounting frame. The liquid discharging assembly includes a bracket, an elastic member, a roller frame and a liquid discharging roller. The bracket is provided at one end of the mounting frame away from the heat sealing plate. The two ends of the elastic member are respectively connected to the bracket and the roller frame. The liquid discharging roller is further provided on the roller frame. The liquid discharging roller is arranged at one end close to the center of the support frame.

[0010] Preferably, the elastic member includes a spring and a telescopic rod. The spring is sleeved on the telescopic rod. The two ends of the spring and the telescopic rod are respectively connected to the bracket and the roller frame.

[0011] In order to facilitate splitting, the present utility model is improved in that the heat sealing plate is in a U shape. A cutting assembly is further provided on a set of the mounting frames. The cutting assembly includes a second pusher, a cutting knife and an adjusting frame in a U shape with an upper opening. The output end of the second pusher is connected to the cross beam of the bracket. The cutting knife is connected above the two free ends of the adjusting frame. The cutting knife is arranged in the groove of a set of the heat sealing plates.

[0012] Preferably, a second guide rod penetrating through the back side of the support frame is further provided on the pushing plate.

[0013] Preferably, both the first pusher and the second pusher adopt air cylinders.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present utility model provides a liquid bag-type packaging machine, which has the following beneficial effects:

[0016] For this liquid bag-type packaging machine, the heat sealing assembly uses a first pusher to push the pushing plate, and drives two sets of mounting frames and heat sealing plates to move through hinge rods. Compared with the traditional method of cooperating with two air cylinders, the structure is simpler. Only one first pusher (air cylinder) needs to be controlled, without complex synchronous control, reducing the complexity of the equipment. Moreover, this integrated structure is more convenient for finding problems and debugging and overhauling when the equipment fails, reducing the downtime and improving the production efficiency;

[0017] The liquid discharging assembly on the mounting frame can effectively solve the problem of excessive liquid in the bag body. Before heat sealing, the liquid discharging roller can extrude the excess liquid in the bag body under the action of the elastic member (spring and telescopic rod). This not only avoids the situation of liquid spilling when the packaging bag is opened, but also ensures that the amount of liquid in the bag is appropriate, improving the packaging quality and the user experience of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view schematic diagram of the structure of the present utility model;

[0019] Figure 2 This is a bottom view schematic diagram of the structure of the utility model;

[0020] Figure 3 It is a partial bottom view schematic diagram of the heat-sealed state of the structure of the utility model;

[0021] Figure 4 It is a partial front view schematic diagram of the heat sealing plate of the utility model structure in the separated state.

[0022] In the figure: 1. body; 2. liquid supply assembly; 3. film supply frame; 4. bag closing cover; 5. bag closing roller; 6. support frame; 7. first pusher; 8. first guide rod; 9. mounting frame; 10. first hinge seat; 11. push plate; 12. second hinge seat; 13. heat sealing plate; 14. hinge rod; 15. bracket; 16. elastic member; 17. roller frame; 18. liquid discharge roller; 19. second pusher; 20. cutting knife; 21. adjustment frame; 22. second guide rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , a liquid bag-feeding packaging machine, comprising a machine body 1, a bag-feeding assembly and a liquid-feeding assembly 2, wherein the liquid-feeding assembly 2 is arranged above the front of the machine body 1, and the bag-feeding assembly comprises a film-feeding frame 3, a bag-closing cover 4 and a bag-closing roller 5, wherein the machine body 1 is further provided with a film-feeding frame 3, and the bag-closing cover 4 is arranged on the peripheral side of the output end of the liquid-feeding assembly 2, and the front of the machine body 1 is further provided with two sets of bag-closing rollers 5, and the two sets of bag-closing rollers 5 are arranged below the output end of the liquid-feeding assembly 2, and further comprising:

[0025] The film supply rack 3 in the bag assembly provides packaging film, which is initially formed by the bag closing cover 4, and then the two sides of the film are further bonded by the two combined bag rollers 5 to form a bag body and transport it to the bottom of the output end of the liquid supply assembly 2. The liquid supply assembly 2 fills a certain amount of liquid material into the bag body, completing the liquid filling work and preparing for subsequent heat sealing and segmentation;

[0026] The heat sealing assembly includes a support frame 6, a first propeller 7, a first guide rod 8, a mounting frame 9, a first hinge seat 10, a hinge rod 14, a propulsion plate 11, a second hinge seat 12 and a heat sealing plate 13. The support frame 6 is embedded in the body 1. The output end of the first propeller 7 passes through the back side of the support frame 6 and is connected to the propulsion plate 11. Two groups of first guide rods 8 are also provided on the front side of the body 1. The two groups of the first guide rods 8 are arranged horizontally. The two groups of the first guide rods 8 are connected to the inner walls on the left and right sides of the support frame 6. The support frame 6 There are also two groups of symmetrically arranged mounting frames 9, the mounting frames 9 are provided with guide holes adapted to the first guide rod 8, the mounting frames 9 are provided with the heat sealing plate 13 on one side close to the center of the support frame 6, the pushing plate 11 is provided with two groups of symmetrically arranged first hinge seats 10 close to one end of the mounting frame 9, the mounting frame 9 is also provided with the second hinge seat 12, the first hinge seat 10 is connected with the second hinge seat 12 through a hinge rod 14, when the bag filled with liquid reaches the heat sealing position, the first propeller 7 (cylinder) is started. The output end of the first propeller 7 pushes the pushing plate 11 to move backward, and the second guide rod 22 on the pushing plate 11 slides on the back side of the support frame 6, plays an auxiliary guiding role, and ensures the smooth movement of the pushing plate 11. When the pushing plate 11 moves, it drives the two groups of symmetrically arranged first hinge seats 10 at one end to move forward synchronously. Since the first hinge seat 10 is connected to the second hinge seat 12 on the mounting frame 9 through the hinge rod 14, the movement of the first hinge seat 10 is transmitted to the mounting frame 9 through the hinge rod 14. The mounting frame 9 is provided with a guide hole adapted to the first guide rod 8. Under the constraint of the first guide rod 8, the mounting frame 9 can only slide smoothly along the first guide rod 8 toward the center of the support frame 6. As the mounting frame 9 moves, the heat sealing plate 13 of the mounting frame 9 close to the center of the support frame 6 gradually approaches the bag body, and finally performs a heat sealing operation on the bag body to achieve sealing of the bag body.

[0027] In this embodiment, a liquid drainage assembly is further provided on the mounting bracket 9. The liquid drainage assembly includes a bracket 15, an elastic member 16, a roller bracket 17, and a liquid drainage roller 18. The bracket 15 is provided at one end of the mounting bracket 9 away from the heat-sealing plate 13. The two ends of the elastic member 16 are respectively connected to the bracket 15 and the roller bracket 17. The liquid drainage roller 18 is further provided on the roller bracket 17. The liquid drainage roller 18 is arranged at one end close to the center of the support frame 6. Before heat-sealing, the liquid drainage assembly plays a role. In the liquid drainage assembly on the mounting bracket 9, the elastic member 16 (composed of a spring and a telescopic rod) enables the liquid drainage roller 18 on the roller bracket 17 to always maintain an elastic force towards the center of the support frame 6. When the bag body is conveyed to the heat-sealing position, the liquid drainage roller 18 first contacts the bag body. If the bag body is filled with too much liquid, under the action of the elastic member 16, the liquid drainage roller 18 will squeeze the bag body to extrude the excess liquid. It should be noted that the liquid drainage assembly is arranged below the two sets of bag-forming rollers 5, and the excess liquid is still in the bag sealed on the side wall. At this time, the bottom wall of the liquid is located above the two sets of liquid drainage rollers 18. At the same time, the elastic member 16 provides buffer protection for the feeding of the two sets of mounting brackets 9. The elastic member 16 includes a spring and a telescopic rod. The spring is sleeved on the telescopic rod. The two ends of the spring and the telescopic rod are respectively connected to the bracket 15 and the roller bracket 17. The telescopic rod ensures the stability of the movement of the roller bracket 17, and the spring facilitates the reset of the roller bracket 17. It should be noted that initially, after the two sets of liquid drainage rollers 18 contact the packaging bag, as the packaging bag moves downward, the liquid below the liquid drainage rollers 18 moves downward with the packaging bag. At this time, there is a space for the packaging bag with liquid to move downward between the two sets of heat-sealing plates 13. When the packaging bag stops, as the first pusher 7 further contracts, the two sets of mounting brackets 9 move. Before the elastic member 16 is completely contracted, the two sets of heat-sealing plates 13 perform the heat-sealing operation on the packaging bag.

[0028] In this embodiment, the heat-sealing plate 13 is in a U shape. A cutting assembly is further provided on one set of the mounting brackets 9. The cutting assembly includes a second pusher 19, a cutting knife 20, and an adjusting frame 21 with an upward-opening U shape. The output end of the second pusher 19 is connected to the cross beam of the bracket 15. The two free ends of the adjusting frame 21 are connected to the cutting knife 20 above. The cutting knife 20 is arranged in the groove of one set of the heat-sealing plates 13. After heat-sealing is completed, the cutting assembly starts to work. The second pusher 19 (cylinder) is started, and its output end pushes the cross beam of the bracket 15, thereby driving the adjusting frame 21 with an upward-opening U shape to move. The cutting knife 20 connected above the two free ends of the adjusting frame 21 moves accordingly. Since the cutting knife 20 is arranged in the groove of one set of the heat-sealing plates 13, driven by the adjusting frame 21, the cutting knife 20 performs a cutting operation between the adjacent bag bodies after heat-sealing is completed, dividing the continuous bag bodies into individual independent packaging products, and completing the entire process of liquid bag packaging;

[0029] In this embodiment, both the first pusher 7 and the second pusher 19 adopt pushers with stable operation.

[0030] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0031] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A liquid bag-feeding packaging machine, comprising a machine body (1), a bag-feeding assembly and a liquid supply assembly (2), wherein the liquid supply assembly (2) is arranged above the front of the machine body (1), and the bag-feeding assembly comprises a film supply frame (3), a bag closing cover (4) and a bag closing roller (5), wherein the machine body (1) is further provided with a film supply frame (3), and the bag closing cover (4) is arranged on the peripheral side of the output end of the liquid supply assembly (2), and two sets of bag closing rollers (5) are further arranged on the front of the machine body (1), and the two sets of bag closing rollers (5) are arranged below the output end of the liquid supply assembly (2), characterized in that: Further included are: A heat-sealing assembly, which includes a support frame (6), a first thruster (7), a first guide rod (8), a mounting bracket (9), a first hinge seat (10), a hinge rod (14), a push plate (11), a second hinge seat (12), and a heat-sealing plate (13). The support frame (6) is embedded in the machine body (1). The output end of the first thruster (7) penetrates through the back side of the support frame (6) and is connected to the push plate (11). Two groups of first guide rods (8) are also provided on the front side of the machine body (1). The two groups of first guide rods (8) are horizontally arranged and are connected to the left and right inner walls of the support frame (6). Two symmetrically arranged mounting brackets (9) are also provided inside the support frame (6). A guide hole adapted to the first guide rod (8) is provided on the mounting bracket (9). The heat-sealing plate (13) is provided on one side of the mounting bracket (9) close to the center of the support frame (6). Two symmetrically arranged first hinge seats (10) are provided at one end of the push plate (11) close to the mounting bracket (9). The second hinge seat (12) is also provided on the mounting bracket (9). The first hinge seat (10) and the second hinge seat (12) are connected by the hinge rod (14).

2. The liquid bag-feeding packaging machine according to claim 1, characterized in that: A liquid-discharging assembly is also provided on the mounting bracket (9), which includes a bracket (15), an elastic member (16), a roller bracket (17), and a liquid-discharging roller (18). The bracket (15) is provided at one end of the mounting bracket (9) away from the heat-sealing plate (13). The two ends of the elastic member (16) are respectively connected to the bracket (15) and the roller bracket (17). The liquid-discharging roller (18) is also provided on the roller bracket (17). The liquid-discharging roller (18) is provided at one end close to the center of the support frame (6).

3. The liquid bag-feeding packaging machine according to claim 2, characterized in that: The elastic member (16) includes a spring and a telescopic rod. The spring is sleeved on the telescopic rod. The two ends of the spring and the telescopic rod are respectively connected to the bracket (15) and the roller bracket (17).

4. The liquid bag-feeding packaging machine according to claim 3, characterized in that: The heat-sealing plate (13) is in a U shape. A cutting assembly is also provided on one group of the mounting brackets (9), which includes a second thruster (19), a cutting knife (20), and an adjusting frame (21) in a U shape with an upper opening. The output end of the second thruster (19) is connected to the cross beam of the bracket (15). The upper parts of the two free ends of the adjusting frame (21) are connected to the cutting knife (20). The cutting knife (20) is arranged in the groove of one group of the heat-sealing plates (13).

5. The liquid bag-feeding packaging machine according to claim 4, characterized in that: A second guide rod (22) penetrating through the back side of the support frame (6) is also provided on the push plate (11).

6. The liquid bag-feeding packaging machine according to claim 5, characterized in that: Both the first thruster (7) and the second thruster (19) adopt air cylinders.

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