Ribbon feeding mechanism of strapping machine

Abstract

The utility model relates to the technical field of packaging instruments, in particular to a strapping tape feeding mechanism of a strapping machine. A strapping tape feeding mechanism of a strapping machine comprises a machine frame and a tape conveying arch frame arranged on the machine frame, and a feeding channel formed by two clamping plates in a clearance fit mode is arranged between a discharging port of a tape conveying rail and a welding mechanism. The feeding end of a ribbon on the ribbon disc is guided into the welding mechanism through the ribbon conveying track, then walks a circle along the ribbon walking arch frame, returns to the welding mechanism and is clamped by the ribbon clamp. A feeding wheel set and a forward and reverse traction wheel set are sequentially arranged in the machine frame in the feeding direction of the belt conveying track, notches are formed in the positions, on the feeding wheel set and the forward and reverse traction wheel set, of the belt conveying track respectively, the forward and reverse traction wheel set conducts belt conveying and feeding when rotating forwards, and the forward and reverse traction wheel set conducts belt withdrawing and bundling when rotating reversely. The feeding wheel set and the forward and reverse traction wheel set each comprise a driving wheel and a driven wheel, and a secondary tensioning pressing wheel and a pressing wheel air cylinder for driving the secondary tensioning pressing wheel to be close to the driving wheel of the forward and reverse traction wheel set are further arranged in the machine frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing instrument, and specifically relates to a strapping feeding mechanism of bundling machine. BACKGROUND

[0002] The bundling machine is widely used for the packaging of various products, and the strapping machine usually comprises a belt feeding mechanism, a belt running mechanism, a cutting mechanism and a driving mechanism. During operation, the belt feeding mechanism forwards the strapping to make the strapping run along the belt running mechanism. After the strapping runs around the belt running mechanism for one round, the product is placed at the discharging end of the belt running mechanism. The driving mechanism makes the strapping above the product separate from the belt running mechanism. The belt feeding mechanism reverses the strapping to make the strapping wrap around the product. Then, the driving mechanism drives the cutting mechanism to separate the strapping wrapped around the product from the strapping on the belt running mechanism, thus completing the packaging of one product. Then, the belt feeding mechanism feeds the strapping to the belt running mechanism again.

[0003] For example, the utility model CN212196042U (publication date 2020.12.22) provides a bundling machine. The guiding frame is symmetrically provided with a guiding structure. The guiding structure is arranged at the feeding end of the two guiding assemblies. The two guiding structures act on the two sides of the discharging end of the belt feeding mechanism. When the strapping is output from the belt feeding mechanism, the guiding structure on the guiding frame guides the strapping from both sides of the strapping, which can avoid the deviation of the strapping and make the strapping smoothly enter the guiding assembly, thus improving the working efficiency of the bundling machine. However, the bundling machine provided by the technology has a complex structure, especially the feeding belt feeding mechanism adopts a pull spring and a connecting rod structure at multiple places, which has a high manufacturing cost. The connecting rod jumps with the strapping, and the spring will be deformed during the jumping process. After a long time, the spring loses elasticity, and it is inconvenient to maintain. In view of this, the applicant proposes a technical solution of a strapping machine transmission mechanism (publication number CN 219173866 U, application date 2023.01.31, publication date 2023.06.13). The structure of the pressure plate cooperates with the lock buckle to place the pressure plate to pop up, which improves the reliability of the strapping machine (bundling machine) during long-time operation and is compatible with strapping of various thicknesses. However, in the process of practicing, the applicant found that the existing technology still has the problems of insufficient bundling force and easy loosening of the strapping during the bundling process. For the material or product that needs to be further tightened, there is a lack of effective secondary tensioning mechanism, which leads to poor bundling effect. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a technical solution that can solve the above problems.

[0005] The utility model provides a kind of strapping machine ribbon feeding mechanism, including frame and the ribbon arch of setting on frame, frame is equipped with workbench, workbench is equipped with fusion mechanism, and fusion mechanism is equipped with ribbon clamp, one side of frame is provided with ribbon reel, it further includes the ribbon track in the frame inside, the discharge outlet between fusion mechanism and the ribbon track is equipped with the feeding channel by the gap cooperation of two clamping plates, the feeding end of ribbon on ribbon reel is guided into fusion mechanism by the ribbon track, and after going around along ribbon arch, it is clamped by ribbon clamp in fusion mechanism again;

[0006] Frame is equipped with feeding wheel group, positive and negative traction wheel group in succession along the feeding direction of ribbon track, and notch is respectively equipped on the feeding wheel group and the positive and negative traction wheel group of ribbon track, wherein, the positive and negative traction wheel group is rotated when feeding, and the positive and negative traction wheel group is reversed when feeding, and the feeding wheel group and the positive and negative traction wheel group all include driving wheel and driven wheel, and the frame is further equipped with secondary tensioning press wheel and press cylinder for driving secondary tensioning press wheel to be close to the driving wheel of positive and negative traction wheel group.

[0007] Further, the frame is hingedly connected with a press wheel frame, the cylinder body of the press cylinder is hingedly installed in the frame, and the telescopic rod of the press cylinder is hingedly connected with one end of the press wheel frame, and the secondary tensioning press wheel is rotatably installed at the other end of the press wheel frame.

[0008] Further, the frame is further equipped with feeding sensor and traction sensor in succession along the feeding direction of the ribbon track, and the rotation of the feeding wheel group and the positive and negative traction wheel group is controlled by the signals of the feeding sensor and the traction sensor.

[0009] Further, the frame is further provided with a ribbon collecting groove for accommodating excess ribbon, and the ribbon track is further provided with a ribbon collecting notch communicating with the ribbon collecting groove between the feeding wheel group and the positive and negative traction wheel group, and the ribbon collecting notch is provided with a baffle covering the ribbon collecting notch and an opening and closing cylinder for driving the baffle to open and close.

[0010] Further, the ribbon collecting groove is provided with a fullness sensor.

[0011] Further, a material disc rod is rotatably installed at one side of the frame, and the ribbon reel is sleeved on the material disc rod.

[0012] Further, the feeding port of the ribbon track is arranged at the bottom of the frame at one side of the ribbon reel, and a reversing guide wheel is arranged on the frame at the material reducing port of the ribbon track.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1) The utility model uses the feeding channel connected by the gap cooperation of two clamping plates to connect the discharge outlet of fusion mechanism and the ribbon track, and uses the thrust generated by the positive and negative traction wheel group to realize the continuous conveying of ribbon, without additionally arranging motor and wheel group for guiding at this place, which is beneficial to reduce energy consumption and manufacturing cost;

[0015] The utility model discloses a secondary tensioning mechanism, and for the material that needs to be further tightened, the pressure wheel cylinder drives the secondary tensioning pressure wheel to be close to the driving wheel of the positive and negative traction wheel group and cooperate with it to compress the strapping before fusion cutting, effectively improve the bundling effect, solve the problem that the strapping is easy to loosen.

[0016] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only is some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0018] Figure 1 It is the structural schematic diagram of the utility model.

[0019] Figure 2 It is another structural schematic diagram of the utility model.

[0020] Figure 3 It is the structural schematic diagram of the rack in the utility model.

[0021] Figure 4 It is the structural schematic diagram of the rack in the utility model. Figure 3 It is the local enlarged view of A in the utility model.

[0022] Figure 5 It is another structural schematic diagram of the rack in the utility model.

[0023] Figure 6 It is the structural schematic diagram of the belt conveying track in the utility model. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled person in the art without making the creative labor belong to the scope of the utility model protection.

[0025] Please refer to Figures 1-6The utility model provides a kind of strapping machine strapping feed mechanism, including frame 01 and the strapping arch 02 being set on frame 01, frame 01 is equipped with workbench 03, workbench 03 is equipped with fusion mechanism 04, fusion mechanism 04 is equipped with strapping clamp 05, one side of frame 01 is provided with strapping disc 1, further including the belt feeding track 2 being located in the inside of frame 01, the discharge outlet of belt feeding track 2 is equipped with the feed channel 3 by the gap cooperation of two clamping plates between fusion mechanism 04 and the discharge outlet, the feed end of strapping on strapping disc 1 is introduced into fusion mechanism 04 by belt feeding track 2, and after strapping arch 02 is walked around, it is clamped by strapping clamp 05 in fusion mechanism 04 again.

[0026] Frame 01 is equipped with feed wheel group 4, positive and negative traction wheel group 5 in succession along the feed direction of belt feeding track 2, and notch is respectively provided on belt feeding track 2 at feed wheel group 4 and positive and negative traction wheel group 5, wherein positive and negative traction wheel group 5 is driven to feed when positive rotation, and is driven to return and bind when reverse rotation, and feed wheel group 4 and positive and negative traction wheel group 5 all include driving wheel and driven wheel, and frame 01 is also equipped with secondary tensioning press wheel 6 and press cylinder 7 for driving secondary tensioning press wheel 6 to be close to the driving wheel of positive and negative traction wheel group 5.

[0027] Specifically, the driving wheels of feed wheel group 4 and positive and negative traction wheel group 5 are respectively driven by corresponding servo motors, the strapping on strapping disc 1 is introduced into feed wheel group 4 from the feed port of feed guide, and then feed wheel group 4 is started to send the strapping along the feed guide to positive and negative traction wheel group 5, positive and negative traction wheel group 5 is started to send the strapping to fusion mechanism 04, and then continuous feeding is carried out until the feed end of the strapping is walked around strapping arch 02 and returns to fusion mechanism 04 to be clamped by strapping clamp 05, at this time, the material to be bound is sent into workbench 03, positive and negative traction wheel group 5 is reversed to return the strapping to bind the material, and then fusion mechanism 04 is fused and cut; in addition, for the material that needs to be further bound, the secondary tensioning press wheel 6 is driven by press cylinder 7 to be close to the driving wheel of positive and negative traction wheel group 5 and be pressed tightly with the driving wheel, and the driving wheel of positive and negative traction wheel group 5 is continuously reversed to further tighten the strapping to achieve the purpose of further binding the material.

[0028] The utility model adopts the feed channel 3 connected fusion mechanism 04 and the discharge outlet of belt feeding track 2 by the gap cooperation of two clamping plates, and the continuous conveying of strapping is realized by the thrust generated by positive and negative traction wheel group 5, without setting motor and wheel group for guiding at this place, which is beneficial to reduce energy consumption and reduce manufacturing cost; the secondary tensioning mechanism is adopted, for the material that needs to be further bound, the binding effect is effectively improved, and the problem that the strapping is easy to loosen is solved.

[0029] Further, the frame 01 is hinged with a pressure wheel frame 8, the cylinder body of the pressure wheel cylinder 7 is hingedly installed in the frame 01 and the telescopic rod thereof is hinged with one end of the pressure wheel frame 8, and the secondary tensioning pressure wheel 6 is rotatably installed at the other end of the pressure wheel frame 8. Specifically, the pressure wheel frame 8 is hinged with the frame 01 to form a lever structure, so that the pressure wheel cylinder 7 provides larger clamping pressure for the secondary tensioning pressure wheel 6 under smaller output pressure, which is beneficial to reduce the cost.

[0030] Further, the frame 01 is hinged with a pressure wheel frame 8, the cylinder body of the pressure wheel cylinder 7 is hingedly installed in the frame 01 and the telescopic rod thereof is hinged with one end of the pressure wheel frame 8, and the secondary tensioning pressure wheel 6 is rotatably installed at the other end of the pressure wheel frame 8. Specifically, the pressure wheel frame 8 is hinged with the frame 01 to form a lever structure, so that the pressure wheel cylinder 7 provides larger clamping pressure for the secondary tensioning pressure wheel 6 under smaller output pressure, which is beneficial to reduce the cost.

[0031] Further, the frame 01 is hinged with a pressure wheel frame 8, the cylinder body of the pressure wheel cylinder 7 is hingedly installed in the frame 01 and the telescopic rod thereof is hinged with one end of the pressure wheel frame 8, and the secondary tensioning pressure wheel 6 is rotatably installed at the other end of the pressure wheel frame 8. Specifically, the pressure wheel frame 8 is hinged with the frame 01 to form a lever structure, so that the pressure wheel cylinder 7 provides larger clamping pressure for the secondary tensioning pressure wheel 6 under smaller output pressure, which is beneficial to reduce the cost.

[0032] Further, the frame 01 is hinged with a pressure wheel frame 8, the cylinder body of the pressure wheel cylinder 7 is hingedly installed in the frame 01 and the telescopic rod thereof is hinged with one end of the pressure wheel frame 8, and the secondary tensioning pressure wheel 6 is rotatably installed at the other end of the pressure wheel frame 8. Specifically, the pressure wheel frame 8 is hinged with the frame 01 to form a lever structure, so that the pressure wheel cylinder 7 provides larger clamping pressure for the secondary tensioning pressure wheel 6 under smaller output pressure, which is beneficial to reduce the cost.

[0033] Further, the frame 01 is hinged with a pressure wheel frame 8, the cylinder body of the pressure wheel cylinder 7 is hingedly installed in the frame 01 and the telescopic rod thereof is hinged with one end of the pressure wheel frame 8, and the secondary tensioning pressure wheel 6 is rotatably installed at the other end of the pressure wheel frame 8. Specifically, the pressure wheel frame 8 is hinged with the frame 01 to form a lever structure, so that the pressure wheel cylinder 7 provides larger clamping pressure for the secondary tensioning pressure wheel 6 under smaller output pressure, which is beneficial to reduce the cost.

[0034] Further, the feeding port of the tape track 2 is arranged at the bottom of the frame 01 on one side of the tape disc 1, and the frame 01 is provided with a reversing guide wheel 16 at the position of the tape track 2. Specifically, as shown in Figure 2 the tape disc 1 is attached to the side of the frame 01, which is beneficial to reduce the space occupation of the machine and facilitate replacement of the empty tape disc 1.

[0035] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A strapping machine strap feeding mechanism, comprising a frame and a strap running arch provided on the frame, a workbench is provided on the frame, a fusion mechanism is provided on the workbench, a strap clamp is provided at the fusion mechanism, a strap reel is provided on one side of the frame, characterized in that, The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism. The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism.

2. A strapping machine strap feed mechanism according to claim 1 wherein, The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism.

3. The strapping machine strap feed mechanism of claim 1 wherein, The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism.

4. The strapping machine strap feed mechanism of claim 1 wherein, The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism.

5. A strapping machine strap feed mechanism according to claim 4 wherein, The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism.

6. A strapping machine strap feed mechanism according to any one of claims 1 to 4 wherein, The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism.

7. A strapping machine strap feed mechanism according to claim 6 wherein, The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism. The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism. The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism. The machine frame is internally provided with a tape feeding track, and a feeding passage composed of a gap between two clamping plates is arranged between the feeding outlet of the tape feeding track and the welding mechanism. 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