Rubber sealing strip fixed length cutting system

Abstract

This utility model discloses a rubber sealing strip length-cutting system, including a workbench, a cutting device, a feeding device for feeding the rubber sealing strip into the cutting device, and a pulling device for pulling the rubber sealing strip out of the cutting device to a fixed length. Using this rubber sealing strip length-cutting system significantly improves work efficiency compared to manual cutting; furthermore, after cutting, a section of adhesive protective layer hangs outside the end face of the rubber sealing strip. During installation, the operator can easily peel off the entire protective layer by pinching this exposed section, thus improving the installation efficiency of the rubber sealing strip.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber sealing strip production equipment, and in particular to a cutting device for cutting rubber sealing strips. Background Technology

[0002] After the adhesive backing process, the rubber sealing strip needs to be cut to the required length. The adhesive backing is an adhesive layer applied to one side of the rubber sealing strip to facilitate installation. A protective layer is provided on the outside of the adhesive layer; during installation, the protective layer is peeled off to adhere the rubber sealing strip to the corresponding location.

[0003] In the prior art, the device for cutting rubber sealing strips includes a straight groove for placing the rubber sealing strip, a measuring ruler set next to the straight groove for measuring the length of the rubber sealing strip, and a cutter driven by a cylinder. The rubber sealing strip is manually pulled out and placed in the straight groove, and then the cylinder is operated to drive the cutter to cut the rubber sealing strip.

[0004] The current method of manually cutting rubber sealing strips is inefficient. Furthermore, the cutting blade used in existing technology is a single blade, resulting in the end face of the rubber sealing strip and the end face of the protective layer being on the same plane after cutting. This makes it difficult for the operator to peel the protective layer off the rubber sealing strip during installation, reducing the efficiency of subsequent rubber sealing strip installation. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a rubber sealing strip fixed-length cutting system to solve the technical problems of low work efficiency of manual cutting of rubber sealing strips and difficulty in peeling off the adhesive protective layer of rubber sealing strips cut by a single blade during installation.

[0006] This utility model relates to a rubber sealing strip fixed-length cutting system, which includes a workbench, a cutting device, a feeding device for feeding the rubber sealing strip into the cutting device, and a pulling device for pulling the rubber sealing strip out of the cutting device to a fixed length.

[0007] Furthermore, the feeding device includes a roller assembly set on the workbench for supporting and tensioning the rubber sealing strip, a first finger cylinder for clamping the rubber sealing strip, and a horizontal cylinder for driving the first finger cylinder to move back and forth. The pneumatic finger of the first finger cylinder is equipped with a clamping plate.

[0008] Furthermore, the material pulling device includes a linear motor arranged along the length of the workbench, a support connected to the slide of the linear motor, and a second finger cylinder connected to the support for clamping the rubber sealing strip. The pneumatic finger of the second finger cylinder is equipped with a clamping plate.

[0009] Furthermore, the cutting device includes a bracket fixed on the workbench, a lifting cylinder mounted on the bracket with its piston rod pointing vertically downward, a blade holder connected to the lifting cylinder, a first cutting blade and a second cutting blade mounted on the blade holder and parallel to each other, and a cutting pad located below the first cutting blade and the second cutting blade, wherein the cutting edge of the first cutting blade is lower than the cutting edge of the second cutting blade.

[0010] Furthermore, a left groove is provided on the left side of the blade holder, the first cutter is disposed in the left groove, and a left pressure block for fixing the first cutter is provided in the left groove. The left pressure block is connected to the blade holder by screws.

[0011] Furthermore, a right groove is provided on the right side of the blade holder, and the second cutter is disposed in the right groove. A right pressure block for fixing the second cutter is provided in the right groove, and the right pressure block is connected to the blade holder by screws. The second cutter is provided with a horizontal edge parallel to the top surface of the right pressure block, and a shim for adjusting the position of the cutting edge of the second cutter is provided between the horizontal edge and the top surface of the right pressure block.

[0012] Furthermore, the cutting device also includes a positioning seat for fixing the cutting pad. The positioning seat is provided with a transverse through hole for the rubber sealing strip to pass through. The cutting pad is disposed in the transverse through hole. The side wall of the positioning seat is provided with screws for fixing the cutting pad. The positioning seat is also provided with a blade groove that cooperates with the first cutter and the second cutter respectively.

[0013] Furthermore, the distance between the first cutter and the second cutter is 5-10mm.

[0014] The beneficial effects of this utility model are:

[0015] 1. The rubber sealing strip cutting system of this utility model greatly improves the work efficiency of rubber sealing strip cutting compared with manual cutting.

[0016] 2. The rubber sealing strip cutting system of this utility model uses two cutters to cut the rubber sealing strip. The cutting edge of the first cutter is lower than that of the second cutter. The first cutter cuts the rubber sealing strip and the adhesive protective layer attached to it together, while the second cutter cuts only the rubber sealing strip and the adhesive layer attached to it, leaving the protective layer behind during the second cut. After this cutting, a section of the protective layer hangs outside the end face of the rubber sealing strip. During installation, the operator can easily peel off the entire protective layer by pinching the exposed section of the protective layer, thereby improving the installation efficiency of the rubber sealing strip. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a rubber sealing strip length-cutting system.

[0018] Figure 2This is a three-dimensional schematic diagram of the cutting device.

[0019] Figure 3 This is a diagram showing the installation of the cutter.

[0020] Figure 4 This is a three-dimensional schematic diagram of the tool holder. Detailed Implementation

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

[0022] As shown in the figure, the rubber sealing strip length-cutting system in this embodiment includes a workbench 1, on which a cutting device, a feeding device for feeding the rubber sealing strip 2 into the cutting device, and a pulling device for pulling the rubber sealing strip out of the cutting device at a fixed length are provided.

[0023] In this embodiment, the feeding device includes a roller assembly 3 mounted on the worktable for supporting and tensioning the rubber sealing strip, a first finger cylinder 4 for clamping the rubber sealing strip, and a horizontal cylinder 5 for driving the first finger cylinder to move back and forth. A clamping plate 6 is mounted on the pneumatic finger of the first finger cylinder. The piston rod of the horizontal cylinder 5 extends and retracts in a direction parallel to the length direction of the worktable.

[0024] In this embodiment, the material pulling device includes a linear motor 7 arranged along the length of the workbench, a support 8 connected to the slide of the linear motor, and a second finger cylinder 9 connected to the support for clamping the rubber sealing strip. The pneumatic finger of the second finger cylinder is provided with a clamping plate 10.

[0025] Before the rubber sealing strip length-cutting system in this embodiment starts working, the rubber sealing strip is first manually passed through the roller assembly 3 and the clamping plate 6 in sequence. Then, the first finger cylinder 4 is controlled to drive the clamping plate 6 to clamp the rubber sealing strip, and the horizontal cylinder 5 is controlled to feed the rubber sealing strip into the cutting device. After feeding, the horizontal cylinder 5 drives the first finger cylinder to return to the initial position. Next, the second finger cylinder is controlled to drive the clamping plate 10 to clamp the rubber sealing strip that has passed through the cutting device. Then, the linear motor 7 is controlled to drive the second finger cylinder 9 to move forward, thereby pulling out the rubber sealing strip. The length pulled out, i.e. the stroke of the linear motor, is set according to the product requirements. After the rubber sealing strip is pulled out to the set length, the cutting device is controlled to cut the rubber sealing strip. After the cutting operation, the linear motor 7 drives the second finger cylinder to return to the initial position.

[0026] The rubber sealing strip cutting system in this embodiment greatly improves work efficiency compared to manual cutting.

[0027] As an improvement to the above embodiment, the cutting device includes a bracket 11 fixed on the workbench, a lifting cylinder 12 mounted on the bracket with its piston rod pointing vertically downward, a blade holder 13 connected to the lifting cylinder, a first cutting blade 14 and a second cutting blade 15 mounted on the blade holder and parallel to each other, and a cutting pad 16 located below the first cutting blade and the second cutting blade, wherein the cutting edge of the first cutting blade is lower than the cutting edge of the second cutting blade.

[0028] In this embodiment, a left groove 17 is provided on the left side of the blade holder, and a first cutter is disposed in the left groove. A left pressure block 18 for fixing the first cutter is provided in the left groove, and the left pressure block is connected to the blade holder by screws. A right groove 19 is provided on the right side of the blade holder, and a second cutter is disposed in the right groove. A right pressure block 20 for fixing the second cutter is provided in the right groove, and the right pressure block is connected to the blade holder by screws. The second cutter 15 is provided with a horizontal edge 21 parallel to the top surface of the right pressure block, and a shim 22 for adjusting the position of the cutting edge of the second cutter is provided between the horizontal edge and the top surface of the right pressure block. In this embodiment, the blade holder with left and right grooves cooperates with the left and right pressure blocks respectively, which can conveniently and reliably install and fix the first and second cutters. Furthermore, by providing a shim between the horizontal edge of the second cutter and the top surface of the right pressure block, the position of the cutting edge of the second cutter can be easily adjusted.

[0029] In this embodiment, the cutting device further includes a positioning seat 23 for fixing the cutting pad. The positioning seat has a transverse through hole 24 for the rubber sealing strip to pass through. The cutting pad is disposed in the transverse through hole. Screws 25 for fixing the cutting pad are provided on the side wall of the positioning seat. The positioning seat also has blade grooves 26 that respectively cooperate with the first cutter and the second cutter. Loosening the screws 25 can adjust the position of the cutting pad 16, which can extend the service life of the cutting pad.

[0030] In this embodiment, the rubber sealing strip cutting system uses a two-blade cutting device to cut the rubber sealing strip. The cutting edge of the first blade is lower than that of the second blade. The first blade cuts off the rubber sealing strip and the adhesive protective layer attached to it together, while the second blade only cuts off the rubber sealing strip and the adhesive layer, leaving the protective layer. After this cutting, a section of the protective layer hangs outside the end face of the rubber sealing strip. In this embodiment, the distance between the first and second blades is 5-10mm, and the specific distance can be designed according to needs, such as 5mm, 7mm, 10mm, etc. After cutting, the length of the adhesive protective layer exceeds the rubber sealing strip by 5-10mm. During installation, the operator can easily peel off the entire protective layer by pinching this section of adhesive protective layer, thereby improving the installation efficiency of the rubber sealing strip.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rubber sealing strip length-cutting system, including a workbench, characterized in that: The workbench is equipped with a cutting device, a feeding device for feeding the rubber sealing strip into the cutting device, and a pulling device for pulling the rubber sealing strip out of the cutting device at a fixed length. The cutting device includes a bracket fixed on the workbench, a lifting cylinder mounted on the bracket with its piston rod pointing vertically downward, a blade holder connected to the lifting cylinder, a first cutting blade and a second cutting blade mounted on the blade holder and parallel to each other, and a cutting pad located below the first cutting blade and the second cutting blade, wherein the cutting edge of the first cutting blade is lower than the cutting edge of the second cutting blade. The cutting device also includes a positioning seat for fixing the cutting pad. The positioning seat is provided with a transverse through hole for the rubber sealing strip to pass through. The cutting pad is placed in the transverse through hole. The side wall of the positioning seat is provided with screws for fixing the cutting pad. The positioning seat is also provided with a blade groove that cooperates with the first cutter and the second cutter respectively.

2. The rubber sealing strip length-cutting system according to claim 1, characterized in that: The feeding device includes a roller assembly set on the workbench for supporting and tensioning the rubber sealing strip, a first finger cylinder for clamping the rubber sealing strip, and a horizontal cylinder for driving the first finger cylinder to move back and forth. The pneumatic finger of the first finger cylinder is equipped with a clamping plate.

3. The rubber sealing strip length-cutting system according to claim 1, characterized in that: The material pulling device includes a linear motor arranged along the length of the workbench, a support connected to the slide of the linear motor, and a second finger cylinder connected to the support for clamping the rubber sealing strip. The pneumatic finger of the second finger cylinder is equipped with a clamping plate.

4. The rubber sealing strip length-cutting system according to claim 1, characterized in that: The left side of the blade holder is provided with a left groove, the first cutter is disposed in the left groove, and a left pressure block for fixing the first cutter is provided in the left groove. The left pressure block is connected to the blade holder by screws.

5. The rubber sealing strip length-cutting system according to claim 4, characterized in that: The right side of the blade holder is provided with a right groove, and the second cutter is disposed in the right groove. The right groove is provided with a right pressure block for fixing the second cutter. The right pressure block is connected to the blade holder by screws. The second cutter is provided with a horizontal edge parallel to the top surface of the right pressure block. A shim for adjusting the position of the cutting edge of the second cutter is provided between the horizontal edge and the top surface of the right pressure block.

6. The rubber sealing strip length-cutting system according to claim 1, characterized in that: The distance between the first and second cutting blades is 5-10mm.

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