Adjustable film guide for horizontal strapping machine

Abstract

The utility model discloses a horizontal formula adjustable belt walking frame for bundling machine, including frame, lift seat and belt walking frame, the belt walking frame inside both sides are equipped with side belt groove, and the belt walking frame inside is away from lift seat one side swing installation has mobile belt groove, install drive box on the belt walking frame, is equipped with the power structure that drives mobile belt groove to move in this drive box, mobile belt groove is fixed with mounting panel on, and the mounting panel surface is installed with a pair of bearing seat through two symmetrical support rods, and the pair of bearing seat rotates and installs the drum, and the drum protrudes from the side of mobile belt groove and is opposite lift seat. The utility model sets up mobile belt groove and can move horizontally along the belt walking frame, and the size in the belt walking frame is reduced, so as to guarantee the firmness of bundling when packing the smaller packing box, and the rotatable drum is set up and contacts the packing box, so that the belt walking frame can directly lift and move to other height and pack, and effectively reduce the friction resistance of mobile belt groove and packing box.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to an adjustable conveyor belt frame for a horizontal strapping machine. Background Technology

[0002] A strapping machine is a commonly used packaging and packing equipment. It generally includes a frame, a strapping mechanism, a lifting base, and a conveyor belt frame. The straps are located inside the conveyor belt frame. During strapping, the conveyor belt frame is placed over the packaging box. As the strapping mechanism pulls on the straps, the straps secure the packaging box. The lifting base can move the conveyor belt frame up and down, thereby achieving multiple strapping operations at different heights.

[0003] However, the existing conveyor belt frames are mostly fixed in size. When the packaged box is small, the cable ties are stretched to a larger size due to the size limitation of the fixed conveyor belt frame. At this time, the cable ties will fall a certain distance due to gravity during the shrinking process. As a result, the cable ties will tilt outside the box instead of being horizontal after being tied, which will cause the cable ties to loosen during the transportation of the package.

[0004] To address this issue, we propose an adjustable conveyor belt frame for a horizontal strapping machine. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable conveyor belt frame for a horizontal strapping machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An adjustable conveyor frame for a horizontal strapping machine includes a frame, a lifting seat, and a conveyor frame. The lifting seat is movably mounted on the frame, and the conveyor frame is mounted on the lifting seat. Side conveyor grooves are provided on both sides of the conveyor frame, and a movable conveyor groove is movably mounted on the side of the conveyor frame away from the lifting seat. A drive box is mounted on the conveyor frame, and the drive box contains a power structure for driving the movable conveyor groove to move, which is used to control the movable conveyor groove to move closer to or away from the lifting seat.

[0008] A mounting plate is fixed on the movable belt groove. A pair of bearing seats are mounted on the surface of the mounting plate via two symmetrical support rods. A roller is rotatably mounted between the pair of bearing seats, and the roller protrudes from the side of the movable belt groove facing the lifting seat.

[0009] In a further embodiment, one end of the support rod is fixedly connected to the bearing seat, and the other end movably passes through the through hole of the mounting plate and is threaded with a nut. The spring is sleeved on the support rod and located between the bearing seat and the mounting plate.

[0010] In a further embodiment, a pressure sensor is embedded on the front side of the mounting plate, and the sensing surface of the pressure sensor is in direct contact with the end face of the spring.

[0011] In a further embodiment, the mounting plate, support rod, bearing seat, and roller are arranged symmetrically in two sets about the moving groove.

[0012] In a further embodiment, the power mechanism includes a screw and a motor. The screw is rotatably connected to the drive box, and a screw seat is threaded onto the outer periphery of the screw. The screw seat is fixed to the movable groove.

[0013] In a further embodiment, two sets of screws and screw seats are symmetrically arranged, and a sprocket is coaxially fixed at the same end of both screws, with a chain sleeved between the two sprockets.

[0014] In a further embodiment, the outer surface of the conveyor frame is provided with a groove parallel to the screw, and the screw seat penetrates the interior of the groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention features a movable belt groove that moves horizontally along the conveyor frame under the control of a power structure, thereby reducing the internal size of the conveyor frame. This allows the movable belt groove to first approach the packaging box when packing smaller boxes, then release and tighten the cable tie, effectively reducing the problem of cable tie shifting due to gravity and ensuring the strength of the binding. At the same time, the elastic floating design of the roller automatically triggers the binding action when it contacts the packaging box, and the roller rolling reduces friction during lifting and lowering. The movable belt groove and the roller detection mechanism work together to solve the problem of tilting when binding small sizes and to achieve fully automated lifting and packing throughout the entire process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial structural diagram of the conveyor frame and movable belt groove of this utility model;

[0019] Figure 3 This is a partial structural diagram of the roller and the movable groove installation of this utility model;

[0020] Figure 4 This is a schematic diagram of the power structure and the mobile slotted installation structure of this utility model;

[0021] Figure 5 This is a partial structural diagram of the conveyor frame after the drive box has been removed.

[0022] In the diagram: 1. Frame; 2. Lifting seat; 3. Belt conveyor frame; 31. Groove; 4. Side belt groove; 5. Moving belt groove; 6. Drive box; 61. Screw; 62. Motor; 63. Screw seat; 64. Sprocket; 65. Chain; 7. Mounting plate; 8. Support rod; 9. Bearing seat; 10. Roller; 11. Pressure sensor; 12. Spring; 13. Nut. Detailed Implementation

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "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 of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] 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.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 An adjustable strapping frame for a horizontal strapping machine includes a frame 1, a lifting seat 2, and a strapping frame 3. The lifting seat 2 is movably mounted on the frame 1, the strapping frame 3 is mounted on the lifting seat 2, and the strapping strap is inside the strapping frame 3. Driven by the strapping machine mechanism, the strapping strap retracts to secure the packaging box.

[0027] Please see Figure 1-4The conveyor frame 3 has side belt grooves 4 on both sides, and a movable belt groove 5 is movably installed on the side of the conveyor frame 3 away from the lifting seat 2. When the movable belt groove 5 moves, the size of the conveyor frame 3 can be adjusted to accommodate packaging boxes of different sizes. A drive box 6 is installed on the conveyor frame 3. The drive box 6 has a power structure for driving the movable belt groove 5 to move, which is used to control the movable belt groove 5 to move closer to or away from the lifting seat 2. The power mechanism includes a screw 61 and a motor 62. The screw 61 is rotatably connected to the drive box 6, and the output shaft of the motor 62 is connected to the screw 61. A screw seat 63 is threaded onto the outer side of the screw 61. The screw seat 63 is fixed to the movable belt groove 5, so that when the screw 61 rotates, the screw seat 63 drives the movable belt groove 5 to move. When the movable belt groove 5 is close to the packaging box, the belt is then pulled up and tied.

[0028] Please see Figure 4-5 To ensure the stability of the moving belt groove 5, two sets of screws 61 and screw seats 63 are symmetrically arranged, and sprockets 64 are coaxially fixed at the same end of both screws 61. A chain 65 is sleeved between the two sprockets 64. When one sprocket 64 rotates, it can drive the other sprocket 64 to rotate through the chain 65. This allows the two screws 61 to rotate synchronously under the drive of the same motor 62, ensuring the consistency of the movement of both ends of the moving belt groove 5. At the same time, in order to avoid occupying the space inside the belt carrier frame 3, the power mechanism and drive box 6 are installed outside the belt carrier frame 3. Correspondingly, a groove 31 parallel to the screws 61 is opened on the outer surface of the belt carrier frame 3, and the screw seat 63 passes through the inside of the groove 31, so that the screw seat 63 can drive the moving belt groove 5 to move.

[0029] Please see Figure 3 Considering that during packaging, the same packaging box usually needs to be bundled multiple times at different heights, and that when the moving belt groove 5 is close to the packaging box, the resistance between the packaging box and the moving belt groove 5 is relatively large when the conveyor frame 3 moves up and down, making the movement difficult, it is usually necessary to first retract the moving belt groove 5 to move it away from the packaging box before raising and lowering it, which is quite cumbersome. Therefore, a mounting plate 7 is fixed on the moving belt groove 5. A pair of bearing seats 9 are mounted on the surface of the mounting plate 7 through two symmetrical support rods 8. A roller 10 is rotatably mounted between the pair of bearing seats 9, and the roller 10 protrudes from the side of the moving belt groove 5 facing the lifting seat 2. This allows the roller 10 to contact the packaging box first when the moving belt groove 5 is close to it. When the packaging height needs to be adjusted at this time, the rotation of the roller 10 greatly reduces the sliding resistance between it and the packaging box, allowing the conveyor frame 3 to move up and down directly without needing to retract the moving belt groove 5. This simplifies the entire bundling process and improves bundling efficiency.

[0030] Furthermore, one end of the support rod 8 is fixedly connected to the bearing seat 9 by a thread, and the other end movably passes through the through hole of the mounting plate 7, with an adjusting nut 13 screwed onto the protruding end. The spring 12 is sleeved on the support rod 8, with one end abutting the back of the bearing seat 9 and the other end abutting the front of the mounting plate 7. The pressure sensor 11 is embedded and fixed in the area on the front of the mounting plate 7 facing the spring 12. The pressure sensor 11 is externally connected to the PLC controller in the control box. When the spring 12 is compressed, it directly squeezes the sensing surface of the pressure sensor 11. When the roller 10 contacts the packaging box, the reaction force pushes the bearing seat 9, causing the bearing seat 9 to compress the spring 12. When the spring 12 is compressed, it presses against the pressure sensor 11. The pressure sensor 11 detects the pressure signal and feeds it back to the PLC controller. When the set threshold is reached, the PLC controller sends a signal to the strapping machine core to shrink the packing strap.

[0031] Please see Figure 3 The mounting plate 7, support rod 8, bearing seat 9 and roller 10 are arranged symmetrically above and below the moving belt groove 5 in two sets. The simultaneous use of the two sets of rollers 10 can improve stability.

[0032] Workflow: The motor 62 inside the drive box 6 starts, synchronously driving the double screw 61 to rotate via the sprocket 64 and chain 65. The screw seat 63 moves horizontally along the groove 31, and the moving belt groove 5 moves towards the packaging box, reducing the internal space of the belt carrier frame 3. The moving belt groove 5 gets close to the packaging box, and the roller 10 contacts the surface of the packaging box. The reaction force pushes the bearing seat 9, compressing the spring 12. The spring 12 squeezes the pressure sensor 11. After the sensor reaches the threshold, it sends a signal to the control box. The control box receives the signal and triggers the strapping mechanism to retract the strap. The strap retracts along the closed loop path formed by the side belt groove 4 and the moving belt groove 5, completing the horizontal strapping at the current height. The lifting seat 2 drives the belt carrier frame 3 to rise / fall, and the roller 10 rolls and contacts the surface of the packaging box, moving to the next strapping height. There is no need to return the moving belt groove 5. Repeat steps 2-3 to strap at the new height.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable conveyor frame for a horizontal strapping machine, comprising a frame (1), a lifting seat (2), a spring (12), and a conveyor frame (3), wherein the lifting seat (2) is movably mounted on the frame (1), and the conveyor frame (3) is mounted on the lifting seat (2), characterized in that: The conveyor frame (3) has side belt grooves (4) on both sides, and a movable belt groove (5) is movably installed on the side of the conveyor frame (3) away from the lifting seat (2). A drive box (6) is installed on the conveyor frame (3), and the drive box (6) has a power structure for driving the movable belt groove (5) to move, which is used to control the movable belt groove (5) to move closer to or away from the lifting seat (2). A mounting plate (7) is fixed on the movable groove (5). A pair of bearing seats (9) are mounted on the surface of the mounting plate (7) by two symmetrical support rods (8). A roller (10) is rotatably mounted between the pair of bearing seats (9), and the roller (10) protrudes from the side of the movable groove (5) facing the lifting seat (2).

2. The adjustable conveyor frame for a horizontal strapping machine according to claim 1, characterized in that: One end of the support rod (8) is fixedly connected to the bearing seat (9), and the other end is movably connected through the through hole of the mounting plate (7) and threaded with a nut (13). The spring (12) is sleeved on the support rod (8) and located between the bearing seat (9) and the mounting plate (7).

3. The adjustable conveyor frame for a horizontal strapping machine according to claim 2, characterized in that: A pressure sensor (11) is embedded on the front of the mounting plate (7), and the sensing surface of the pressure sensor (11) is in direct contact with the end face of the spring (12).

4. The adjustable conveyor frame for a horizontal strapping machine according to claim 1, characterized in that: The mounting plate (7), support rod (8), bearing seat (9) and roller (10) are arranged in two sets symmetrically about the moving groove (5).

5. The adjustable conveyor frame for a horizontal strapping machine according to claim 1, characterized in that: The power structure includes a screw (61) and a motor (62). The screw (61) is rotatably connected to the drive box (6), and a screw seat (63) is threaded around the screw (61). The screw seat (63) is fixed to the movable groove (5).

6. The adjustable conveyor frame for a horizontal strapping machine according to claim 5, characterized in that: The screw (61) and screw seat (63) are symmetrically arranged in two sets, and the same end of the two screws (61) is coaxially fixed with a sprocket (64), and a chain (65) is sleeved between the two sprockets (64).

7. The adjustable conveyor frame for a horizontal strapping machine according to claim 5, characterized in that: The outer surface of the conveyor frame (3) is provided with a groove (31) parallel to the screw (61), and the screw seat (63) penetrates the interior of the groove (31).

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