Material belt buffer

Abstract

The utility model provides a material belt buffer which comprises a machine frame, a material conveying device, a buffer area and a distance sensor, the material conveying device, the buffer area and the distance sensor are all arranged on the machine frame, the material conveying device is used for conveying a material belt from an uncoiler to the buffer area, and the buffer area is used for buffering the material belt and used for being connected to a punching machine of a follow-up process. The distance sensor is used for detecting the relative distance between the distance sensor and the material belt in the cache area so as to provide a corresponding electric signal for an external controller, and the external controller is promoted to control the driving speed of the material conveying device. The buffering area is arranged for buffering the material belt, the distance of the material belt is recognized through the distance sensor, and therefore the stock of the material belt in the buffering area is judged, when too many materials are buffered, the driving force of the material conveying device is reduced, when the stock is too small, the driving force of the material conveying device is increased, and the material conveying device is linked with a punching machine to protect material belt raw materials; a buffering effect is achieved between the uncoiler and the punching machine, shaking from the punching machine can be eliminated, the laser coding effect is guaranteed, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging raw material production equipment, and in particular to a material belt buffer. Background Art

[0002] With the development of the industry, QR codes have become popular in the field of easy-open lid packaging. During the production process, the raw materials coated with colored paint are unwound by the unwinder and enter the laser coding machine bracket and guide rail for coding, and then enter the feeding and mold of the punching machine to form a QR code product.

[0003] Since laser coding machines have extremely high requirements for vibration, within 30 milliseconds of coding, it is necessary to ensure that the raw materials cannot have the slightest vibration, otherwise the printed QR code may be deformed and unrecognizable. However, the punching machine vibrates 600 times per minute and the unwinder pulls the material in the opposite direction. If the vibration cannot be eliminated, it will directly affect the coding effect.

[0004] Therefore, it is necessary to develop a buffer mechanism that acts as a buffer between the unwinder and the punching machine to eliminate jitter, ensure the laser coding effect of the coding machine, and thus improve the quality of the easy-pull cover product. Utility Model Content

[0005] The utility model aims to provide a material strip buffer which can improve the quality of easy-open lid products.

[0006] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0007] The utility model provides a material strip buffer, which is suitable for being connected between an unwinding machine and a punching machine of an easy-open cover material strip, and comprises a frame and a material transmission device, a buffer area and a distance sensor all arranged on the frame, wherein the material transmission device is used for transmitting the material strip from the unwinding machine to the buffer area, the buffer area is used for caching the material strip transmitted by the material transmission device and is used for being connected to a punching machine of a subsequent process, and the distance sensor is used for detecting the relative distance between the material strip and the material strip in the buffer area, so as to provide a corresponding electrical signal to an external controller, so as to prompt the external controller to control the driving speed of the material transmission device.

[0008] In one embodiment, an S-shaped guide area is provided between the material conveying device and the buffer area, and the S-shaped guide area is used to guide the material belt from the material conveying device to the buffer area.

[0009] In one embodiment, the material conveying device is arranged above the buffer area, the S-shaped guide area extends in the up-down direction, and the distance sensor is arranged near the lower end of the S-shaped guide area.

[0010] In one embodiment, a front limit sensor and a rear limit sensor are further provided above the buffer area, and the front limit sensor and the rear limit sensor are respectively provided at the front and rear sides of the material conveying device.

[0011] In one embodiment, the material conveying device includes a bracket, a motor and a driving wheel. The bracket is erected on a frame, the motor is mounted on the bracket, and the driving wheel is connected to the motor and is used to apply force to the material belt to move it forward.

[0012] In one embodiment, the material conveying device further comprises a pressing wheel, which is disposed above the driving wheel and is used to press the material belt against the driving wheel.

[0013] In one embodiment, adjustable pressing springs are provided on both sides of the pressing wheel and the pressing force is provided by the adjustable pressing springs.

[0014] In one embodiment, a pair of first guide wheels is provided at the rear side of the driving wheel, and the first guide wheels are used to guide the material belt to the position where the driving wheel is located.

[0015] In one embodiment, the material transmission device further includes a gearbox connected between the motor and the driving wheel.

[0016] In one embodiment, the frame is further provided with a second guide wheel, and the second guide wheel is used to guide the material strip unwound by the unwinder into the material conveying device.

[0017] The beneficial effects of the technical solution provided by the utility model are as follows: a buffer area is set to cache the material strip, and the distance of the material strip is identified by a distance sensor, so as to judge the material strip inventory in the buffer area; when too much material is cached, the driving force of the material transmission device is reduced; when the inventory is too little, the driving force of the material transmission device is increased, and the material strip raw material is protected in a chain with the punching machine. Thus, a buffering effect is achieved between the uncoiler and the punching machine, which can eliminate the jitter from the punching machine, ensure the laser coding effect of the two-dimensional code, and improve product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention.

[0019] Figure 1 A schematic structural diagram of a material tape buffer provided in one embodiment of the utility model. DETAILED DESCRIPTION

[0020] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0021] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0022] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0023] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0024] See also Figure 1 The utility model relates to a material strip buffer 100, which is suitable for being connected between an unwinder (not shown, the same below) and a punching machine (not shown, the same below) of an easy-open cover material strip 200, and realizing a buffering effect between the unwinder and the punching machine, which can eliminate the jitter from the punching machine, ensure the laser coding effect of the two-dimensional code, improve product quality, reduce customer complaints caused by the deformation and inability to recognize the two-dimensional code, and improve consumers' use experience.

[0025] The material strip buffer 100 includes a frame 10 and a material conveying device 20, a buffer area 30 and a distance sensor 40 all arranged on the frame. The material conveying device is used to transfer the material strip from the uncoiler to the buffer area. The buffer area is used to cache the material strip transmitted by the material conveying device and is used to connect to the punching machine of the subsequent process. The distance sensor is used to detect the relative distance between it and the material strip in the buffer area to provide a corresponding electrical signal to an external controller (such as the PLC of the electronic control system in the easy-open lid production line) to prompt the external controller to control the driving speed of the material conveying device.

[0026] The buffer area 30 is set to cache the material belt, and the distance of the material belt is identified by the distance sensor, so as to assist in judging the cache amount of the material belt in the buffer area. When the distance identified by the distance sensor is too large and the material cache is too much, an electrical signal is output to the PLC, so that the PLC outputs a signal to reduce the driving force of the material transmission device. When the distance is too small and the stock is too small, another electrical signal is output to the PLC, and the PLC outputs a control signal to increase the driving force of the material transmission device, and is linked with the punching machine to protect the material belt raw material. Thus, a buffering effect is achieved between the uncoiler and the punching machine, which can eliminate the jitter from the punching machine, ensure the laser coding effect of the two-dimensional code, and improve product quality.

[0027] In one embodiment, an S-shaped guide area 40 is further provided between the material conveying device 20 and the buffer area 30 , and the S-shaped guide area is used to guide the material belt from the material conveying device to the buffer area.

[0028] In one embodiment, the material transfer device 20 is arranged above the buffer area, the S-shaped guide area 40 extends in the up and down direction, and the distance sensor is arranged near the lower end of the S-shaped guide area. By arranging the guide area up and down, the horizontal size is reduced and the occupied area is reduced.

[0029] In one of the embodiments, a front limit sensor 70 and a rear limit sensor 60 are further provided above the buffer area 30, and the front limit sensor and the rear limit sensor are respectively arranged on the front and rear sides of the material conveying device, wherein the front limit sensor is used to interlock with the punching machine to protect the material strip when the material buffer is too little, and the rear limit sensor is used to play a limit stop role when the material buffer is too much.

[0030] In one embodiment, the material conveying device 20 includes a bracket 21, a motor 22 and a driving wheel (not shown), wherein the bracket is erected on a frame, the motor is mounted on the bracket and electrically connected to a PLC and the speed is controlled by a signal thereof, and the driving wheel is connected to the motor and used to apply a force to the material belt to move it forward.

[0031] In one embodiment, the material conveying device further includes a pressing wheel 23, which is disposed above the driving wheel and is used to press the material belt against the driving wheel.

[0032] In one embodiment, adjustable pressing springs are provided on both sides of the pressing wheel and the pressing force is provided by the adjustable pressing springs.

[0033] In one embodiment, a pair of first guide wheels 24 are provided at the rear side of the driving wheel, and the first guide wheels 24 are used to guide the material belt to the position where the driving wheel is located.

[0034] In one embodiment, the material transmission device further includes a gearbox (not indicated, the same below), which is connected between the motor and the drive wheel and is used to reduce the motor power through the gearbox to drive the drive wheel to provide driving force.

[0035] In one embodiment, a second guide wheel 80 is further provided on the frame 21 , and the second guide wheel is used to guide the material strip unwound by the unwinder into the material conveying device 20 .

[0036] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0037] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. A material strip buffer, suitable for connecting between an unwinder and a punching machine of an easy-open cover material strip, characterized in that: It includes a frame and a material transmission device, a buffer area and a distance sensor all arranged on the frame. The material transmission device is used to transmit the material strip from the uncoiler to the buffer area. The buffer area is used to cache the material strip transmitted by the material transmission device and is used to connect to the punching machine of the subsequent process. The distance sensor is used to detect the relative distance between it and the material strip in the buffer area and provide a corresponding electrical signal to an external controller.

2. The tape buffer according to claim 1, characterized in that: An S-shaped guide area is also provided between the material conveying device and the buffer area, and the S-shaped guide area is used to guide the material belt from the material conveying device to the buffer area.

3. The tape buffer according to claim 2, characterized in that: The material conveying device is arranged above the buffer area, the S-shaped guide area extends in the up-down direction, and the distance sensor is arranged near the lower end of the S-shaped guide area.

4. The tape buffer according to claim 2, characterized in that: A front limit sensor and a rear limit sensor are also arranged above the buffer area, and the front limit sensor and the rear limit sensor are respectively arranged on the front and rear sides of the material conveying device.

5. The tape buffer according to claim 1, characterized in that: The material conveying device comprises a bracket, a motor and a driving wheel. The bracket is erected on the frame, the motor is installed on the bracket, and the driving wheel is connected to the motor and is used to apply force to the material belt to move it forward.

6. The tape buffer according to claim 5, characterized in that: The material conveying device also includes a pressing wheel, which is arranged above the driving wheel and is used to press the material belt against the driving wheel.

7. The tape buffer according to claim 6, characterized in that: Adjustable pressing springs are arranged on both sides of the pressing wheel, and the pressing force is provided by the adjustable pressing springs.

8. The tape buffer according to claim 5, characterized in that: A pair of first guide wheels are provided at the rear side of the driving wheel, and the first guide wheels are used to guide the material belt to the position where the driving wheel is located.

9. The tape buffer according to claim 5, characterized in that: The material transmission device also includes a gearbox, which is connected between the motor and the driving wheel.

10. The tape buffer according to claim 1, characterized in that: The frame is also provided with a second guide wheel, and the second guide wheel is used to guide the material strip unwound by the unwinder into the material conveying device.

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