阅读说明：本技术 一种包装机bopp膜松卷制动装置 (Packagine machine BOPP membrane pine rolls up arresting gear ) 是由 付亚彬 付俊 黄世海 丁岩 荔亮 韩劲 王林 黄翔 余冰 赵芳 贺俊尧 杜宜遥 于 2021-07-23 设计创作，主要内容包括：本发明公开了一种包装机BOPP膜松卷制动装置,其包括：BOPP膜支架,所述BOPP膜支架上安装有用于安装导轴的安装支架；上部支撑夹紧部件,设置在所述BOPP膜支架的一个端部；背板,其固定支撑作用；弹簧架,弹簧架的一端与BOPP膜支架同轴连接,且均转动连接于所述背板上；拉力弹簧,拉力弹簧固定在背板上,且拉力弹簧的一端与弹簧架的另一端连接；张紧装置,固定在所述弹簧架下方的背板上；制动带,所述制动带的一端固定在所述上部支撑夹紧部件上,制动带的另一端绕过刹车鼓固定在所述张紧装置上。本装置采用带式制动的制动方式,是利用围绕在制动鼓周围的制动带收缩而产生制动效果的一种制动器。(The invention discloses a BOPP film unwinding braking device of a packaging machine, which comprises: the device comprises a BOPP film bracket, a guide shaft and a guide shaft, wherein the BOPP film bracket is provided with a mounting bracket for mounting the guide shaft; an upper support clamping member provided at one end of the BOPP film holder; a back plate for fixing and supporting; one end of the spring frame is coaxially connected with the BOPP film bracket and is rotatably connected to the back plate; the tension spring is fixed on the back plate, and one end of the tension spring is connected with the other end of the spring frame; the tensioning device is fixed on the back plate below the spring frame; and one end of the brake band is fixed on the upper supporting and clamping part, and the other end of the brake band bypasses the brake drum and is fixed on the tensioning device. The device adopts a belt type braking mode, and is a brake which generates a braking effect by utilizing the contraction of a braking belt surrounding a brake drum.)

1. The utility model provides a packagine machine BOPP membrane unwinding arresting gear which characterized in that includes:

the device comprises a BOPP film bracket, a guide shaft and a guide shaft, wherein the BOPP film bracket is provided with a mounting bracket for mounting the guide shaft;

an upper support clamping member provided at one end of the BOPP film holder;

a back plate for fixing and supporting;

one end of the spring frame is coaxially connected with the BOPP film bracket and is rotatably connected to the back plate;

the tension spring is fixed on the back plate, and one end of the tension spring is connected with the other end of the spring frame;

the tensioning device is fixed on the back plate below the spring frame;

and one end of the brake band is fixed on the upper supporting and clamping part, and the other end of the brake band bypasses the brake drum and is fixed on the tensioning device.

2. The BOPP film unwinding brake device for the packaging machine according to claim 1, wherein the BOPP film holder comprises a middle cylindrical portion and mounting portions disposed at both sides of the cylindrical portion, and the upper support clamping member is fixed to the mounting portions.

3. The brake device for releasing the roll of BOPP film for the packaging machine according to claim 1, wherein the upper supporting and clamping member comprises an upper supporting plate and an upper pressing plate, the upper pressing plate and the upper supporting plate are connected by a bolt to clamp one end of the braking band.

4. The brake device for releasing the roll of BOPP film for the packaging machine according to claim 1, wherein the tension device comprises a lower fixing bracket and a lower pressing plate, the lower pressing plate and the lower fixing bracket are connected through a bolt to clamp the other end of the brake band, and the lower fixing bracket is fixed on the back plate.

5. The BOPP film unwinding braking device of the packaging machine as claimed in claim 4, further comprising a device support, a nut and a compression spring, wherein the device support is fixed on the back plate, the lower fixing support comprises a lower fixing support body and a screw rod arranged on the lower fixing support body, one end of the screw rod penetrates through the device support and extends out of the device support to be locked through a bolt, and the compression spring is sleeved on the screw rod between the lower fixing support body and the device support.

6. The BOPP film unwinding brake device of the packing machine according to any one of claims 1 to 5, wherein two ends of the brake band are tangent to the brake drum respectively.

Technical Field

The invention relates to the technical field of cigarette packaging, in particular to a BOPP film unwinding braking device of a packaging machine.

Background

The G.DX2 packaging machine and the localization ZB45 packaging machine set are the mainstream models of the cigarette packaging equipment in China at present. The BOPP film unwinding brake device of the original packaging machine at least has the following problems:

the rotating shaft of the braking device is of a sealing structure, so that the braking device cannot be lubricated continuously after being lubricated for one time, and the phenomenon of locking or blocking of the rotating shaft due to corrosion is easily caused, so that the braking device cannot normally brake.

Secondly, the original brake block is made of asbestos type brake block, and asbestos fiber of the brake block can cause harm to human health and does not meet the modern environmental protection requirement. And the asbestos has poor heat conductivity, and the brake failure is easily caused when the asbestos reaches a certain heat.

And thirdly, the contact area between the original brake pad and the brake drum is small, and the braking effect is poor.

Disclosure of Invention

The invention provides a BOPP film unwinding braking device of a packaging machine, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

a braking device for unwinding BOPP film of a packaging machine comprises: the device comprises a BOPP film bracket, a guide shaft and a guide shaft, wherein the BOPP film bracket is provided with a mounting bracket for mounting the guide shaft; an upper support clamping member provided at one end of the BOPP film holder; a back plate for fixing and supporting; one end of the spring frame is coaxially connected with the BOPP film bracket and is rotatably connected to the back plate; the tension spring is fixed on the back plate, and one end of the tension spring is connected with the other end of the spring frame; the tensioning device is fixed on the back plate below the spring frame; and one end of the brake band is fixed on the upper supporting and clamping part, and the other end of the brake band bypasses the brake drum and is fixed on the tensioning device.

In some embodiments, the BOPP film holder includes a central cylindrical portion and mounting portions provided on both sides of the cylindrical portion, the upper support clamping member being fixed to the mounting portions.

In some embodiments, the upper support clamping component comprises an upper support plate and an upper pressure plate, the upper pressure plate and the upper support plate being bolted to clamp one end of the brake band.

In some embodiments, the tensioning device comprises a lower fixing bracket and a lower pressing plate, the lower pressing plate and the lower fixing bracket are connected through a bolt to clamp the other end of the brake band, and the lower fixing bracket is fixed on the back plate.

In some embodiments, the device further comprises a device bracket, a nut and a compression spring, the device bracket is fixed on the back plate, the lower fixing bracket comprises a lower fixing bracket body and a screw rod arranged on the lower fixing bracket body, one end of the screw rod penetrates through the device bracket and extends out of the device bracket to be locked through a bolt, and the compression spring is sleeved on the screw rod between the lower fixing bracket body and the device bracket.

In some embodiments, the two ends of the brake band are tangent to the brake drum respectively.

Drawings

Fig. 1 is a schematic view of a BOPP film unwind braking device of a packaging machine according to some embodiments of the present application;

FIG. 2 is a schematic view of the installation of an upper support clamping component according to some embodiments of the present application;

FIG. 3 is a schematic view of a tensioner according to some embodiments of the present application;

the labels in the figure are: 1-backing plate, 2-bracket, 3-BOPP membrane bracket, 4-upper support clamping component, 5-spring bracket, 6-tension spring, 7-brake band, 8-brake drum, 9-tension device, 31-mounting part, 32-cylindrical part, 41-upper support plate, 42-upper pressure plate, 91-device bracket, 92-nut, 93-compression spring, 94-lower fixed bracket body, 95-screw, 96-lower pressure plate, 97-lower fixed bracket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

On the contrary, this application is intended to cover any alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the application as defined by the appended claims. Furthermore, in the following detailed description of the present application, certain specific details are set forth in order to provide a better understanding of the present application. It will be apparent to one skilled in the art that the present application may be practiced without these specific details.

Fig. 1 is a schematic view of a BOPP film unwind braking device of a packaging machine according to some embodiments of the present application; FIG. 2 is a schematic view of the installation of an upper support clamping component according to some embodiments of the present application; FIG. 3 is a schematic view of a tensioner according to some embodiments of the present application; the BOPP film unwinding braking device of the packaging machine according to the embodiment of the present application will be described in detail with reference to fig. 1 to 3. It should be noted that the following examples are only for explaining the present application and do not constitute a limitation to the present application.

In an embodiment of the present application, as shown in fig. 1 to 3, the BOPP film unwinding brake device of the packaging machine may include: the guide shaft device comprises a BOPP film bracket 3, wherein a mounting bracket 2 for mounting a guide shaft is mounted on the BOPP film bracket 3; an upper support clamping member 4 provided at one end of the BOPP film holder 3; a back plate 1 for fixing and supporting; one end of the spring frame 5 is coaxially connected with the BOPP film bracket 3 and is rotatably connected to the back plate 1; the tension spring 6 is fixed on the back plate 1, and one end of the tension spring 6 is connected with the other end of the spring frame 5; the tensioning device 9 is fixed on the back plate 1 below the spring frame 5; a brake band 7, one end of the brake band 7 is fixed on the upper supporting and clamping component 4, and the other end of the brake band 7 is fixed on the tension device 9 by passing through a brake drum 8; the two ends of the brake band 7 are tangent to the brake drum 8 respectively.

The device of this embodiment is a band brake, which uses the contraction of the brake band 7 around the brake drum to produce a braking effect. The brake band 7 is wrapped on the brake drum 8, the upper end of the brake band 7 is fixed between the BOPP film bracket 3 and the bracket by the upper supporting and clamping part 4, and the lower end tensioning device 9 is arranged on the back plate 1. The BOPP film support 3 and the spring support 5 are coaxial and are locked on a shaft and are rotationally connected to the back plate 1, and are jointly under the action of a tension spring 6 hung on the spring support 5.

When the packaging machine stops, the BOPP film is not pulled leftwards, the BOPP film support 3 is pulled by the tension spring 6 to generate clockwise force, the brake belt 7 fixed on the BOPP film support 3 is tensioned, and the brake belt 7 is tightly attached to the brake drum 8, so that braking is realized.

When the packaging machine normally operates, the BOPP film is pulled leftwards, and when the pulling force exerted to the left on the BOPP film is larger than the pulling force of the tension spring 6, the BOPP film support 3 is pulled leftwards to move, so that the tightened brake belt 7 is loosened, the brake belt 7 is separated from the surface of the brake drum 8, and the BOPP film is loosened. And (3) unwinding: i.e. the brake is moved away from the brake drum 8 and the BOPP membrane is moved to the left.

In some embodiments, the BOPP film holder 3 includes a middle cylindrical portion 32 and mounting portions 31 disposed at both sides of the cylindrical portion 32, and the upper support clamping member 4 is fixed to the mounting portions 31. The mounting portion 31 has a flat surface for facilitating mounting of the upper support jaw 4.

In some embodiments, the upper support clamping unit 4 comprises an upper support plate 41 and an upper pressure plate 42, and the upper pressure plate 42 and the upper support plate 41 are connected by bolts to clamp one end of the brake band 7. In this embodiment, the braking band 7 is a lawn pattern PU braking band 7 with a thickness of 4 mm, a width of 20 mm and a total length of 560 mm. The method can meet the installation requirement only by punching the brake band 7, and is convenient and fast.

In some embodiments, the tensioning device 9 comprises a lower fixing bracket 97 and a lower pressing plate 96, the lower pressing plate 96 and the lower fixing bracket 97 are connected through bolts to clamp the other end of the braking band 7, and the lower fixing bracket 97 is fixed on the back plate 1. The method can meet the installation requirement only by punching the brake band 7, and is convenient and fast.

In some embodiments, the device further comprises a device bracket 91, a nut 92 and a compression spring 93, the device bracket 91 is fixed on the back plate 1, the lower fixing bracket 97 comprises a lower fixing bracket body 94 and a screw 95 arranged on the lower fixing bracket body 94, one end of the screw 95 penetrates through and extends out of the device bracket 91 to be locked by a bolt, and the compression spring 93 is sleeved on the screw 95 between the lower fixing bracket body 94 and the device bracket 91. After the brake band 7 runs for a period of time, the size of the belt needs to be adjusted due to deformation or replacement of the brake drum 8, and the size of the belt can be adjusted by screwing in or screwing out the nut 92. And the compression spring 93 is used for ensuring that the nut 92 is not loosened.

By utilizing the structure, the tightness of the brake band 7 can be conveniently adjusted by a maintenance worker, the wrap angle formed by the brake band 7 and the brake drum 8 can reach more than 120 degrees, the brake band 7 is in close contact with the brake drum 8, and the braking effect is better. The BOPP film unwinding braking device of the packaging machine disclosed in the present application may bring about beneficial effects including, but not limited to: firstly, the service life of the BOPP film unwinding braking device of the packaging machine is 2-3 times of that of the original braking device, and the maintenance and replacement cost of the braking device is reduced.

Secondly, the contact area between the brake band and the brake drum is larger, and the braking effect is better.

And meanwhile, the tobacco bale loss is reduced, and the material cost is saved for factories.

And fourthly, the braking belt is adjustable, the friction force is convenient to adjust, and the braking effect is more accurate.

And fifthly, the BOPP film unwinding brake device of the packaging machine adopts the lawn pattern PU brake belt, so that the environment friendliness is good.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.