Soft packing bag corner pressing machine

Abstract

The utility model discloses a kind of soft packing bag angle pressing machine, it is related to packaging processing equipment technical field, including conveyer belt, multiple sets of positioning strip for positioning soft packing bag are fixed equidistantly on conveyer belt.The side of conveyer belt is equipped with corner cutting assembly and hot-pressing assembly, corner cutting assembly is driven corner cutting drive screw by servo motor, drive upper and lower corner cutting driving plate relative motion, make arc blade and support block cooperate to complete corner cutting;Hot-pressing assembly drives upper and lower hot-pressing driving plate by hot-pressing drive screw, utilize hot-pressing strip to hot-pressing sealing of soft packing bag corner portion, and linkage is realized by linkage chain between the two.In addition, arc blade is equipped with buffer spring, and there is positioning auxiliary line on positioning strip.The angle pressing machine is integrated with corner cutting and hot-pressing function, degree of automation is high, can effectively improve soft packing bag angle pressing precision and production efficiency, reduce artificial cost, applicable to soft packing bag processing.

Description

Technical Field

[0001] This utility model relates to the field of packaging processing equipment technology, specifically to a corner pressing machine for flexible packaging bags. Background Technology

[0002] In the packaging industry, flexible packaging bags are widely used in many fields such as food, daily chemicals, and electronics due to their advantages such as being lightweight, low-cost, and easy to carry. Corner pressing, as one of the processes in flexible packaging bag production, ensures that the corners of the bag are more secure, preventing problems such as openings and tears during use, thus improving the quality and lifespan of the flexible packaging bag.

[0003] Traditional corner-pressing methods for flexible packaging bags mainly include manual operation and simple mechanical assistance. Manual corner pressing is inefficient, and it is difficult to ensure consistent pressing angles and pressure, resulting in inconsistent product quality. Most traditional corner-pressing machines only have the single function of corner cutting or hot pressing, and cannot complete continuous hot pressing and corner cutting operations on the same machine. This requires the use of multiple machines in the production process, increasing production costs and space occupation, while also reducing production efficiency. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a corner-pressing machine for flexible packaging bags, comprising a conveyor belt with multiple sets of positioning strips fixed at equal intervals, each set of positioning strips including two positioning strips; a corner-cutting assembly is provided on the side of the conveyor belt, the corner-cutting assembly including two sets of corner-cutting drive plates disposed on both sides of the conveyor belt, each set of corner-cutting drive plates including upper and lower corner-cutting drive plates, the upper corner-cutting drive plate having two arc-shaped blades installed at its bottom ends, and the lower corner-cutting drive plate having two receiving blocks fixed at its top ends, the upper and lower corner-cutting drive plates being threadedly connected to corner-cutting drive screws, the outer surface of the corner-cutting drive screws having two external threads with opposite directions, the two external threads with opposite directions being threadedly connected to the two corner-cutting drive plates respectively, the two corner-cutting drive screws being connected to each other via a sprocket and chain A; a driven gear is fixed on the outer side of one of the corner-cutting drive screws, a drive gear meshes with the side of the driven gear, a shaft is fixed at the center of the drive gear, and a servo motor is connected to the shaft.

[0005] Furthermore, a hot pressing assembly is provided, which includes two sets of hot pressing drive plates disposed on both sides of the conveyor belt. Each set of hot pressing drive plates includes upper and lower hot pressing drive plates. Hot pressing strips are installed on the outer walls of the upper and lower hot pressing drive plates that are close to each other. Hot pressing drive screws are threadedly connected to the upper and lower hot pressing drive plates. Two external threads with opposite directions are opened on the outer surface of the hot pressing drive screws. The two external threads with opposite directions are respectively threadedly connected to the two hot pressing drive plates. The two hot pressing drive screws are connected to each other through a sprocket and chain B. The hot pressing assembly is located in front of the conveyor belt in the transport direction relative to the corner cutting assembly.

[0006] Furthermore, one of the hot-press drive screws and one of the chamfer drive screws are connected by a sprocket and a linkage chain, and an L-shaped limit seat is provided on the side of the chamfer drive plate and the hot-press drive plate.

[0007] Furthermore, a connecting strip is fixed to the top of the curved blade, a slide rod is fixed to the top of the connecting strip, a buffer spring is sleeved on the outer side of the slide rod, the top of the buffer spring is fixed to the bottom surface of the chamfering drive plate above it, and the bottom of the buffer spring is fixed to the connecting strip below it.

[0008] Furthermore, positioning auxiliary lines are engraved on the positioning strip.

[0009] The beneficial effects of this utility model are as follows:

[0010] 1. This equipment integrates corner cutting and hot pressing functions, completing both operations on the same machine. This reduces the number of machines and the space required, improving production efficiency. The screw drive of the corner cutting and hot pressing screws allows for precise control of the corner cutting and hot pressing positions. The relative movement of the corner cutting drive plate and the hot pressing drive plate is controlled by the screws, ensuring accurate corner cutting angles and uniform hot pressing pressure, thus improving the corner pressing quality of the flexible packaging bags.

[0011] 2. For flexible packaging bags of different thicknesses, good processing results can be achieved by adjusting the temperature and pressure of the hot pressing strip and the descent speed of the corner cutting blade, thus improving the versatility of the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the connection structure between the hot-pressing component and the chamfering component in this utility model;

[0014] Figure 3 This is a partial structural diagram of the chamfered component in this utility model;

[0015] Figure 4 This is a partial structural diagram of the hot-pressing assembly in this utility model;

[0016] Figure 5 This is a schematic diagram of the connection structure of the arc-shaped blade in this utility model;

[0017] Figure 6 This is a schematic diagram of the arc-shaped blade in this utility model.

[0018] The reference numerals in the attached drawings are explained as follows: 1. Conveyor belt; 2. Positioning strip; 301. Angle-cutting drive plate; 302. Arc-shaped blade; 303. Receiving block; 304. Angle-cutting drive screw; 305. Chain A; 401. Hot-press drive plate; 402. Hot-pressing strip; 403. Hot-press drive screw; 404. Chain B; 5. Driven gear; 6. Drive gear; 7. Shaft; 8. Linkage chain; 9. Connecting strip; 10. Slide bar; 11. Buffer spring; 12. Positioning auxiliary line; 13. Limit seat. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] A type of corner pressing machine for flexible packaging bags, such as Figure 1 , Figure 2 and Figure 3As shown, the system includes a conveyor belt 1, on which multiple sets of positioning strips 2 are fixed at equal intervals. Each set of positioning strips 2 includes two positioning strips 2, and positioning auxiliary lines 12 are engraved on the positioning strips 2. A corner-cutting assembly is provided on the side of the conveyor belt. The corner-cutting assembly includes two sets of corner-cutting drive plates 301 disposed on both sides of the conveyor belt 1. Each set of corner-cutting drive plates 301 includes upper and lower corner-cutting drive plates 301. Two arc-shaped blades 302 are installed at the bottom ends of the upper corner-cutting drive plate 301, and two receiving blocks 30 are fixed at the top ends of the lower corner-cutting drive plate 301. 3. The upper and lower chamfer drive plates 301 are threadedly connected to chamfer drive screws 304. The outer surface of the chamfer drive screws 304 has two external threads with opposite directions. The two external threads with opposite directions are threadedly connected to the two chamfer drive plates 301 respectively. The two chamfer drive screws 304 are connected by a sprocket and a chain A305. A driven gear 5 is fixed on the outer side of one of the chamfer drive screws 304. A driving gear 6 is meshed on the side of the driven gear 5. A shaft 7 is fixed at the center of the shaft of the driving gear 6. A servo motor is connected to the shaft 7.

[0023] The conveyor belt 1 and positioning strip 2 are used to position the flexible packaging bag, ensuring its accurate position during processing. The corner cutting assembly is driven by a servo motor to drive the corner cutting drive screw 304, which in turn drives the upper and lower corner cutting drive plates 301 to move relative to each other using a reverse thread. This allows the arc-shaped blade 302 and the receiving block 303 to cooperate in cutting the corner. The sprocket and chain A305 enable the two screws to rotate synchronously, ensuring stable and efficient corner cutting.

[0024] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, a hot pressing assembly is provided, which includes two sets of hot pressing drive plates 401 disposed on both sides of the conveyor belt 1. Each set of hot pressing drive plates 401 includes upper and lower hot pressing drive plates 401. Hot pressing strips 402 are installed on the outer walls of the upper and lower hot pressing drive plates 401 that are close to each other. Hot pressing drive screws 403 are threadedly connected to the upper and lower hot pressing drive plates 401. Two external threads with opposite directions are opened on the outer surface of the hot pressing drive screws 403. The two external threads with opposite directions are respectively threaded to the two hot pressing drive plates 401. The two hot pressing drive screws 403 are connected to each other through a sprocket and a chain B404. The hot pressing assembly is located in front of the conveyor belt 1 in the transport direction relative to the corner cutting assembly. One of the hot pressing drive screws 403 and one of the corner cutting drive screws 304 are connected through a sprocket and a linkage chain 8. L-shaped limiting seats 13 are provided on the sides of the corner cutting drive plate 301 and the hot pressing drive plate 401.

[0025] The hot-pressing assembly utilizes a hot-pressing drive screw 403 to drive the upper and lower hot-pressing drive plates 401 closer together, causing the hot-pressing strip 402 to hot-press and seal the corner of the flexible packaging bag. A sprocket and chain B404 ensure synchronous operation of the two hot-pressing drive screws 403. The hot-pressing assembly is located in front of the corner-cutting assembly, enabling a continuous processing flow of hot-pressing followed by corner cutting. The linkage chain 8 links the corner-cutting and hot-pressing actions, simultaneously preparing the hot-pressing assembly for operation and improving processing efficiency.

[0026] like Figure 3 , Figure 5 and Figure 6 As shown, in this embodiment, a connecting strip 9 is fixed to the top of the arc-shaped blade 302, a slide bar 10 is fixed to the top of the connecting strip 9, a buffer spring 11 is sleeved on the outer side of the slide bar 10, the top of the buffer spring 11 is fixed to the bottom surface of the chamfering drive plate 301 above it, and the bottom of the buffer spring 11 is fixed to the connecting strip 9 below it.

[0027] In this embodiment, a photoelectric sensor is installed above the corner-cutting assembly and the hot-pressing assembly. The photoelectric sensor is electrically connected to the drive motor of the conveyor belt 1 so that the conveyor belt 1 stops operating when it transports the soft packaging bag to the corner-cutting assembly and the hot-pressing assembly.

[0028] The photoelectric sensor, in conjunction with the drive motor of conveyor belt 1, enables the automatic start and stop of conveyor belt 1, reducing manual operation, lowering labor costs, and improving the stability of the production process and the consistency of product quality.

[0029] The working principle of this utility model is as follows:

[0030] Working principle of corner cutting: The servo motor serves as the power source for the corner cutting action. After starting, it outputs torque, driving the shaft 7 to rotate. The rotation of the shaft 7 causes the driving gear 6 to rotate, which meshes with the driven gear 5, thereby driving the driven gear 5 to rotate. The driven gear 5 is fixed on the corner cutting drive screw 304, so the corner cutting drive screw 304 rotates accordingly. The two external threads with opposite directions on the outer surface of the corner cutting drive screw 304 are threadedly connected to the upper and lower corner cutting drive plates 301 respectively. When the corner cutting drive screw 304 rotates, the upper and lower corner cutting drive plates 301 move relative to each other along the screw axis. The arc-shaped blade 302 at the bottom of the upper corner cutting drive plate 301 moves downward with the corner cutting drive plate 301 and cooperates with the receiving block 303 at the top of the lower corner cutting drive plate 301 to cut the corner of the flexible packaging bag. During the corner cutting process, the buffer spring 11 can buffer the impact when the curved blade 302 contacts the flexible packaging bag, preventing the blade from damaging the flexible packaging bag or itself due to excessive impact force, while also ensuring the quality and accuracy of the corner cutting.

[0031] Hot pressing working principle: The corner-cutting drive screw 304 is connected to the hot pressing drive screw 403 via a sprocket and a linkage chain 8. When the corner-cutting drive screw 304 rotates, it drives the hot pressing drive screw 403 to rotate via the linkage chain 8. The outer surface of the hot pressing drive screw 403 also has two external threads with opposite directions, which are threadedly connected to the upper and lower hot pressing drive plates 401 respectively. The rotation of the hot pressing drive screw 403 brings the upper and lower hot pressing drive plates 401 closer together. The hot pressing strips 402 installed on the hot pressing drive plates 401 then move closer and apply pressure and heat to the corners of the flexible packaging bag, realizing the hot pressing operation. The hot pressing strips 402 are heated by internal heating elements to reach the set hot pressing temperature, sealing the corners of the flexible packaging bag together to ensure the airtightness of the packaging. In the operation of the equipment, the hot pressing process is performed first, followed by the corner-cutting process.

[0032] Control principle of conveyor belt 1: A photoelectric sensor (not shown in the figure) monitors the position of the flexible packaging bag on conveyor belt 1 in real time. When the flexible packaging bag moves with conveyor belt 1 to the corner cutting assembly or hot pressing assembly, the photoelectric sensor detects the presence of the flexible packaging bag and transmits a signal to the drive motor of conveyor belt 1. After receiving the signal, the drive motor stops running, allowing the flexible packaging bag to stop accurately at the corresponding processing position. After processing is completed, the operator or the equipment control system restarts the drive motor of conveyor belt 1, and conveyor belt 1 continues to run, transporting the flexible packaging bag to the next process or out of the equipment.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A soft package corner pressing machine, comprising a conveying belt (1), a plurality of groups of positioning strips (2) are fixed equidistantly on the conveying belt (1), and a single group of positioning strips (2) comprises two positioning strips (2); characterized in that: A corner-cutting assembly is provided on the side of the conveyor belt. The corner-cutting assembly includes two sets of corner-cutting drive plates (301) on both sides of the conveyor belt (1). Each set of corner-cutting drive plates (301) includes two upper and lower corner-cutting drive plates (301). Two arc-shaped blades (302) are installed at the bottom ends of the upper corner-cutting drive plate (301). Two receiving blocks (303) are fixed at the top ends of the lower corner-cutting drive plate (301). The upper and lower corner-cutting drive plates (301) are threadedly connected to corner-cutting drive screws (304). The outer surface of the chamfer drive screw (304) has two external threads with opposite directions. The two external threads with opposite directions are respectively threaded to the two chamfer drive plates (301). The two chamfer drive screws (304) are connected by a sprocket and a chain A (305). One of the chamfer drive screws (304) has a driven gear (5) fixed on its outer side. The driven gear (5) is meshed with a driving gear (6) on its side. A shaft (7) is fixed at the center of the shaft of the driving gear (6). A servo motor is connected to the shaft (7).

2. The corner-pressing machine for flexible packaging bags according to claim 1, characterized in that: A hot pressing assembly is provided, which includes two sets of hot pressing drive plates (401) located on both sides of the conveyor belt (1). Each set of hot pressing drive plates (401) includes two upper and lower hot pressing drive plates (401). Hot pressing strips (402) are installed on the outer walls of the upper and lower hot pressing drive plates (401) that are close to each other. Hot pressing drive screws (403) are threadedly connected to the upper and lower hot pressing drive plates (401). Two external threads with opposite directions are opened on the outer surface of the hot pressing drive screws (403). The two external threads with opposite directions are threadedly connected to the two hot pressing drive plates (401) respectively. The two hot pressing drive screws (403) are connected to each other through a sprocket and a chain B (404). The hot pressing assembly is located in front of the conveyor belt (1) in the transport direction relative to the corner cutting assembly.

3. A corner-pressing machine for flexible packaging bags according to claim 2, characterized in that: One of the hot-press drive screws (403) and one of the chamfer drive screws (304) are connected by a sprocket and a linkage chain (8). An L-shaped limit seat (13) is provided on the side of the chamfer drive plate (301) and the hot-press drive plate (401).

4. A corner-pressing machine for flexible packaging bags according to claim 1, characterized in that: The top of the arc-shaped blade (302) is fixed with a connecting strip (9), the top of the connecting strip (9) is fixed with a slide rod (10), the outer side of the slide rod (10) is fitted with a buffer spring (11), the top of the buffer spring (11) is fixed to the bottom surface of the chamfering drive plate (301) above it, and the bottom of the buffer spring (11) is fixed to the connecting strip (9) below it.

5. A corner-pressing machine for flexible packaging bags according to claim 1, characterized in that: The positioning strip (2) is engraved with positioning auxiliary lines (12).

6. A corner-pressing machine for flexible packaging bags according to claim 1, characterized in that: A photoelectric sensor is installed above the corner-cutting assembly and the hot-pressing assembly. The photoelectric sensor is electrically connected to the drive motor of the conveyor belt (1) so that the conveyor belt (1) stops running when it transports the soft packaging bag to the corner-cutting assembly and the hot-pressing assembly.

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