A guide rail assembly for a cutting apparatus

Abstract

The present application relates to the field of cutting equipment, in particular to a guide rail assembly for cutting equipment, which structure comprises a composite beam rail and a sliding seat for mounting a cutting head, the composite beam rail is provided with a sliding rail part, the sliding seat is clamped with the sliding rail part through sliding blocks on both sides, the end of the sliding block is provided with an end cleaning mechanism and is in contact with the sliding rail part, the end cleaning mechanism comprises an air seat and a partition clamp mounted on the air seat, the air seat is provided with a gas supply channel and an air extraction channel, the gas supply channel forms an air outlet cavity and an air extraction cavity on the air seat respectively, the present application crossly sets the partition on the air seat to scrape the sliding rail part with two contact surfaces and forming a convex surface, the dust on the main contact surface is scraped off through the partition clamp, a processing space is separated between the partition clamps, the dust on the contact surface inside the partition clamp and the dust in the vicinity of the surrounding area of the sliding rail part are separated from the contact surface by the airflow, and are collected by negative pressure in a directional manner, so that the contact surface of the sliding rail part on the sliding block movement path is clean.

Description

Technical Field

[0001] This invention relates to the field of cutting equipment, specifically a guide rail assembly for cutting equipment. Background Technology

[0002] Cutting machines are commonly used equipment for flat cutting in sheet metal processing. They cut the sheet metal by moving the cutting head on the guide rail. Existing cutting machines use a variety of guide rail types, including trolley type which is less affected by the environment but has lower precision, linear guide rail which has higher precision but is affected by the environment, and guide rail type which slides by contact surface contact to better adapt to the load environment.

[0003] Existing cutting machines typically use two guide rails. Since the cutting head needs to extend laterally and downwards for cutting, only one guide rail bears the main load of the cutting head. This can easily lead to uneven stress on the two guide rails. In this contact surface sliding form, the gap between the slider and the guide rail can widen in different usage scenarios. For example, when cutting hard plates, the cutting vibration is large, causing a gap to form between the slider and the guide rail. The dust generated during cutting accumulates on the guide rail and is usually pushed away by the slider. However, when the gap widens, dust can easily enter between the slider and the guide rail, affecting the fit between the slider and the guide rail and increasing wear. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a guide rail assembly for a cutting device. The assembly includes a composite beam rail and a slide block slidably mounted on the composite beam rail. The composite beam rail has a slide rail section with two slide rails at the same horizontal height. The slide block has sliders on both sides, and the slide block is movably mounted between the slide rail sections by contacting the slide rail sections via the sliders on both sides. The slide block has an end-cleaning mechanism at the end of the slider, which contacts the slide rail section. The slide rail section has two contact surfaces forming a convex shape, and the slider has two contact surfaces forming a concave shape that fits against the contact surfaces of the slide rail section. The end-cleaning mechanism includes a vent seat and a slide block mounted on the composite beam rail. The vent seat includes several card slots arranged in an alternating pattern. Several spacers are provided on the card slots and abut against the contact surfaces of the slide rails. At least one spacer is provided on each of the two contact surfaces of the slide rails and they are arranged adjacent to each other. The vent seat has an air supply channel and an air extraction channel. Each card slot has a concave portion and a convex portion pointing to different contact surfaces of the slide rails. The concave and convex portions are arranged in an alternating pattern on a single contact surface. The air supply channel forms an air outlet chamber on the concave portion and the air extraction channel forms an air extraction chamber on the convex portion. The spacers are installed on the air outlet chambers.

[0005] Furthermore, the air outlet cavity is provided with limiting edges on both sides, the air outlet cavity is provided with an opening at the end of the card seat, the partition card is provided with relief grooves on both sides and is inserted into the limiting edges, the partition card is provided with a first elastic element at the top of the partition card and abuts against the inner side of the air outlet cavity, and the first elastic element provides elastic force to drive the partition card to move towards the contact surface of the slide rail.

[0006] Furthermore, the spacers are arranged at intervals on the contact surface of the slide rail on the same side and are in contact with the spacers on the contact surface of the opposite side. The contact surface between the protrusion and the slide rail has a gap. The air extraction chamber forms a negative pressure space on the contact surface of the slide rail through the spacers between adjacent spacers or between the spacers and the slide block. The direct outlet of the air outlet chamber, which is equipped with the spacers, originally formed on the recess is blocked by the spacers. The air extraction chamber opens as the direct outlet of the air outlet chamber is blocked.

[0007] Furthermore, a partition cavity is provided in the middle of the air extraction chamber along the length of the limiting edge of the card seat portion. A plug is provided in the partition cavity through a second elastic element to block the air extraction channel and the direct outlet of the air extraction chamber formed on the protrusion. A protruding guide portion is provided at one end of the partition card near the protrusion. The guide portion of the partition card installed in the air outlet chamber is embedded in the partition cavity. A guide groove is provided in the guide portion to connect the air extraction chamber.

[0008] Furthermore, the partition card has an air replenishment chamber at one end near the protrusion. The air replenishment chamber is connected from the top of the partition card to the bottom of the partition card and points between the air extraction chamber and the slide rail. The air replenishment chamber serves as an indirect outlet for the air outlet chamber formed on the concave portion.

[0009] Furthermore, the air outlet chamber without the partition card forms a positive pressure space outside the partition card of the previous air outlet chamber. The outer side of the vent seat has at least two air outlet chambers without partition cards, and the air outlet chamber without the partition card forms a cycle of negative and positive pressure with the previous air extraction chamber.

[0010] Furthermore, the length of the air outlet chamber and the air extraction chamber is greater than the width of the contact surface of the slide rail, and the two ends of the air outlet chamber and the air extraction chamber are located outside the contact surface in the projection on the plane where the contact surface is located.

[0011] Furthermore, the two contact surfaces of the slide rail have an included angle, and the included angle is within the range of 60°-120°.

[0012] Furthermore, the distance between the limiting edge and the contact surface of the slide rail is less than the distance from the top of the clearance groove of the partition card to the bottom of the partition card. A structural post is provided on the limiting edge at the opening at the end of the card seat. The structural post is used to restrict the degree of freedom of the partition card to move outward from the opening.

[0013] Furthermore, the slide block is fixedly provided with a fixed block and detachably provided with a movable block, the slider is mounted on the fixed block and the movable block, and an adjustment block is provided between the movable block and the fixed block to adjust the distance between the movable block and the fixed block.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention cleans the slide rail section of the composite beam rail that follows the slide block through the end-cleaning mechanism. By cross-setting partitions on the vent seat, the slide rail section, which has two contact surfaces and forms a convex shape, is scraped. The contact surface is treated in two ways: first, the partitions scrape off the dust on the main contact surface, preventing dust from entering the slider from the contact surface of the slide rail section along the slider's movement path, and creating a treatment space between the partitions; second, airflow drives the dust on the contact surface inside the partitions and the surrounding area of ​​the slide rail section to detach from the contact surface, and the dust is collected directionally by negative pressure. This ensures that the contact surface of the slide rail section along the slider's movement path is clean, and prevents dust from entering the gaps when the slider and slide rail section experience multiple gap openings due to long-term vibration.

[0016] Furthermore, the present invention also includes a treatment method for the contact surface. By setting a portion of the outer side of the vent seat without a partition, the air outlet on the outer side can spray airflow to move the dust on the outer contact surface of the vent seat and the dust in the surrounding area of ​​the slide rail. The dust is then collected directionally by the outer air extraction chamber, while some dust is blown away, thereby ensuring that the front and rear contact surfaces are as clean as possible. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the guide rail assembly used in the cutting equipment of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the cutting device and guide rail assembly of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the composite beam rail, slide block, and end-clearing mechanism of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the end-cleaning mechanism of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the vent seat and the card holder of the present invention.

[0022] Figure 6 This is a schematic diagram showing the form of several spacer cards being bonded and fitted together according to the present invention.

[0023] Figure 7 This is a side cross-sectional schematic diagram of the end-cleaning mechanism and the slide rail of the present invention.

[0024] In the diagram: 1. Composite beam rail; 2. Slide block; 3. End cleaning mechanism; 11. Slide rail section; 21. Slider; 22. Fixed block; 23. Movable block; 24. Adjusting block; 25. Connecting seat; 31. Vent seat; 32. Divider; 33. First elastic element; 34. Plug; 35. Second elastic element;

[0025] 31a, Card seat; 31b, Recess; 31c, Protrusion; 31d, Air supply channel; 31e, Air extraction channel; 31f, Air outlet chamber; 31g, Limiting edge; 31h, Air extraction chamber; 31i, Partition chamber; 321, Relief groove; 322, Conducting part; 323, Conducting groove; 324, Air replenishment chamber. Detailed Implementation

[0026] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Examples, such as Figures 1-7 As shown: This invention provides a guide rail assembly for a cutting device. The structure includes a composite beam rail 1 and a slide block 2 slidably mounted on the composite beam rail 1. The composite beam rail 1 has a slide rail section 11 with two slide rails at the same horizontal height, located on both sides. The slide block 2 has sliders 21 on both sides. The slide block 2 is movably mounted between the slide rail sections 11 by contacting the sliders 21 on both sides. The slide rail structure is formed by the engagement of the slide block 2 with the slide rail section 11 of the composite beam rail. This differs from an assembly where both ends of a single slider 21 are engaged with the slide rail. In the example, the limiting end of the slide block 2 is located on both sides, and the slide block 2 is limited by the slide rail 11 on both sides. The slide block 2 is fixedly provided with a fixed block 22 and detachably provided with a movable block 23. The slider 21 is installed on the fixed block 22 and the movable block 23. The movable block 23 is installed on the slide block 2 by bolts. An adjusting block 24 is also provided between the movable block 23 and the fixed block 22 by bolts. The adjusting block 24 is conical or frustum-shaped and is used to adjust the distance between the movable block 23 and the fixed block 22, so that the movable block 23 and the fixed block 22 are spread apart and pressed against the slide rail 11 on both sides.

[0028] It should be noted that the slide rail 11 has two contact surfaces and forms a convex shape, that is, the slide rail 11 is convex and the upper and lower sides of the convex position are contact surfaces. There is an angle between the two contact surfaces and the angle range is within 60°-120°. In this embodiment, the angle between the two contact surfaces is 90°. The slider 21 includes two contact surfaces and forms a concave surface that fits against the contact surface of the slide rail 11.

[0029] It should also be noted that the contact surface of the slide rail 11 and the slider 21 are made of self-lubricating materials, which makes the sliding between them smoother when they slide by surface friction. For example, POM (polyoxymethylene) material is used, which has good self-lubricating properties in a wide range of temperature and humidity, and can reduce friction and wear.

[0030] Among them, the structure of slider 21 and slide rail 11 restricting the middle slider 21 by slide rail 11 on both sides means that this type of slide rail usually combines slide rail 11 with structural beam to ensure function and strength. This also makes it difficult to protect slider 21 and slide rail 11 separately, which leads to dust entering the gap during vibration.

[0031] Therefore, the slide block 2 has an end-cleaning mechanism 3 at the end of the slider 21, which contacts the slide rail 11. Specifically, connecting seats 25 are provided on both sides of the fixed block 22 and the movable block 23. The end-cleaning mechanism 3 is installed on the connecting seats 25 and then on the end of the slider 21. The end-cleaning mechanism 3 includes a vent seat 31 and a spacer 32 installed on the vent seat 31. The vent seat 31 includes a plurality of retaining portions 31a arranged in an alternating manner. The retaining portions 31a are L-shaped. Each retaining portion 31a has a concave portion 31b and a convex portion 31c, which respectively point towards the slide rail. Different contact surfaces of part 11, the concave part 31b and the convex part 31c are arranged alternately on a single contact surface, the distance between the concave part 31b and the convex part 31c and the slide rail part 11 is different, the contact surface between the convex part 31c and the slide rail part 11 has a gap, and the vent seat 31 is provided with an air supply channel 31d and an air extraction channel 31e. The air supply channel 31d forms an air outlet cavity 31f on the concave part 31b and the air extraction channel 31e forms an air extraction cavity 31h on the convex part 31c. A number of partitions 32 are provided and the partitions 32 are respectively disposed on the card seat part 31a, specifically installed on the air outlet cavity 31f;

[0032] It should be noted that the lengths of the air outlet chamber 31f and the air extraction chamber 31h are greater than the width of the contact surface of the slide rail 11. The two ends of the air outlet chamber 31f and the air extraction chamber 31h are located on the outer side of the contact surface in the projection on the plane where the contact surface is located, thereby ensuring the coverage range of the air outlet chamber 31f and the air extraction chamber 31h.

[0033] Regarding the installation of the spacer 32, limiting edges 31g are provided on both sides of the air outlet cavity 31f. The air outlet cavity 31f has an opening at the end of the card holder portion 31a. The spacer 32 has clearance grooves 321 on both sides of its top end, which are engaged with the limiting edges 31g. A structural post is provided on the limiting edge 31g at the opening at the end of the card holder portion 31a. The structural post is used to restrict the degree of freedom of the spacer 32 to move outward from the opening. The top end of the spacer 32 has a first elastic member 33 that abuts against the inner side of the air outlet cavity 31f. Made of rubber, the first elastic element 33 provides elastic force to move the partition 32 toward the contact surface of the slide rail 11. It should be noted that the distance between the limiting edge 31g and the contact surface of the slide rail 11 is less than the distance from the top of the relief groove 321 of the partition 32 to the bottom of the partition 32, so that the partition 32 always abuts against the contact surface of the slide rail 11, and remains abutting against the contact surface of the slide rail 11 even when the gap increases due to vibration between the composite beam rail 1 and the slide block 2.

[0034] Therefore, by using the above-mentioned vent seat 31, the posture of the partition card 32 after installation can be determined, so that the partition cards 32 are arranged at intervals on the contact surface on the same side of the slide rail 11. It should also be noted that the maximum thickness of the partition card 32 is in the part from the relief groove 321 to the bottom of the partition card 32, and the thickness at this point is equal to the thickness of the card seat part 31a, so that the partition card 32 contacts the partition card 32 on the opposite contact surface.

[0035] Subsequently, at least one partition card 32 is provided on each of the two contact surfaces of the slide rail 11 and is arranged adjacent to each other, so that the adjacent partition cards 32 are attached to the slide rail 11 in a cross shape, forming a scraping range on the contact surface of the slide rail 11. It is known that the bottom surface of the partition card 32 is also made of self-lubricating material. In this embodiment, the card seat 31a is provided with six partition cards and the partition card 32 is provided with four.

[0036] Correspondingly, for the suction chamber 31h and the exhaust chamber 31f, the suction chamber 31h forms a negative pressure space on the contact surface of the slide rail 11 through the adjacent partitions 32 or the partitions 32 and the slide 2. That is, the partition 32 closest to the slide 2 can also cooperate with the slide 2 to form a negative pressure space. The direct outlet of the exhaust chamber 31f, which is equipped with the partitions 32, is blocked by the partitions 32, and the suction chamber 31h opens as the direct outlet of the exhaust chamber 31f is blocked.

[0037] Therefore, a partition cavity 31i is provided in the middle of the air extraction cavity 31h along the length direction of the limiting edge 31g of the card seat portion 31a. A plug 34 is provided in the partition cavity 31i through the second elastic member 35 to block the air extraction channel 31e and the direct outlet formed on the protrusion 31c of the air extraction cavity 31h. The second elastic member 35 is made of rubber. At the same time, a protruding guide portion 322 is provided on the partition card 32 near the protrusion 31c, so that the guide portion 322 of the partition card 32 installed in the air outlet cavity 31f is embedded in the partition cavity 31i. A guide groove 323 is provided in the guide portion 322 to connect the air extraction cavity 31h.

[0038] In this embodiment, a replenishing air chamber 324 is provided at one end of the partition 32 near the protrusion 31c. The replenishing air chamber 324 is connected from the top of the partition 32 to the bottom of the partition 32 and points between the suction chamber 31h and the slide rail 11. The replenishing air chamber 324 serves as an indirect outlet formed by the exhaust chamber 31f on the recess 31b. Together with the suction chamber 31h, it forms a negative pressure and positive pressure cycle on the contact surface of the slide rail 11, serving as an internal circulation.

[0039] In this embodiment, the outer side of the vent seat 31 has at least two air outlet chambers 31f without partitions 32. The air outlet chamber 31f without partitions 32 forms a positive pressure space outside the partitions 32 of the previous air outlet chamber 31f. The air outlet chamber 31f without partitions 32 forms a cycle of negative and positive pressure with the previous suction chamber 31h, which serves as the external circulation.

[0040] In summary, during implementation, the partition 32 is installed on the air outlet cavity 31f. The first elastic element 33 at the top of the partition 32 is compressed against the top of the air outlet cavity 31f, causing the clearance groove 321 of the partition 32 to engage with the limiting edge 31g. Then, the partition 32 is pushed into the air outlet cavity 31f, blocking the direct outlet originally formed on the recess 31b. Simultaneously, the conductive part 322 on the partition 32 pushes against the plug 34 and inserts into the isolation cavity 31i. The length of the isolation cavity 31i is greater than the sum of the lengths of the conductive part 322 and the plug 34. Starting from one end of the slider 21, the partition 32 is installed sequentially outward from the vent seat 31. Place four partitions 32 and leave an air outlet 31f outside the vent seat 31 without partitions 32. Then the vent seat 31 can be installed on the connecting seat 25 and then installed on both sides of the slider 21. It will press against the slide rail 11 along with the installation of the slide seat 2. When installing the slide seat 2, loosen the movable block 23, first lock the fixed block 22 onto one side of the slide rail 11, and then lock the adjusting block 24 to press the movable block 23 against the other slide rail 11 until both sides of the slider 21 are pressed against the slide rail 11. At this time, the vent seat 31 drives the partitions 32 to fit against the slide rail 11 in the form of compressing the first elastic element 33.

[0041] When the cutting equipment is in use, the slide 2 carries the cutting equipment to move on the plate. By setting the cutting direction, most of the dust can be concentrated in one direction. However, the equipment environment is controllable, but the processing environment is uncontrollable. Dust generated by the processing environment outside the equipment, as well as some dust that cannot be concentrated, begin to affect the slide rail 11 and accumulate on it. The four partitions 32 cross each other and scrape the slide rail 11 in front of the slider 21's movement path when the slide 2 slides, removing dust from the main contact surface and preventing dust from entering the slider 21 from the contact surface of the slide rail 11 along the slider 21's movement path. At the same time, the air supply channel 31d and the air extraction channel 31e of the vent seat 31 are activated. Connected to the air supply equipment and the negative pressure equipment respectively, during scraping, for some dust that is missed in the gaps of the edges and the middle of the slide rail 11, as well as dust that may exist in the openings on the outside of the slide rail 11 between the two partitions, air is supplied through the air supply chamber 324 to drive the airflow and dust movement so that it does not adhere to the contact surface of the slide rail 11. At the same time, the negative pressure is formed by the air extraction chamber 31h to adsorb the moving dust. At the front end of the vent seat 31, for the contact surface that is about to be scraped, the air outlet chamber 31f without the partition 32 blows air to blow away the dust. The dust that is close to the partition 32 may become dust that affects the slider 21. This dust is then drawn away and adsorbed by the previous air extraction chamber 31h.

[0042] Therefore, three treatment methods are applied to the contact surface: first, the dust is scraped off by the partition 32; second, the dust is collected in a directional manner by airflow on the contact surface inside the partition 32 and the surrounding area of ​​the slide rail 11, i.e., internal circulation; and third, the dust is collected in a directional manner on the contact surface outside the vent seat 31 and the surrounding area of ​​the slide rail 11. This ensures that the front and back of the contact surface are as clean as possible, and prevents dust from entering when the slider 21 and the slide rail 11 are repeatedly opened due to long-term vibration.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A guide rail assembly for a cutting device, characterized in that: The guide rail assembly for cutting equipment includes a composite beam rail and a slide block slidably mounted on the composite beam rail. The composite beam rail is provided with a slide rail section and two slide rails are provided at the same horizontal height. The slide block is provided with sliders on both sides. The slide block is movably mounted between the slide rail sections by contacting the slide rail section through the sliders on both sides. The slide block is provided with an end cleaning mechanism at the end of the slider and contacts the slide rail section. The slide rail has two contact surfaces and is convex in shape, and the slider has two contact surfaces and is concave in shape, which fits against the contact surfaces of the slide rail. The end-cleaning mechanism includes a vent seat and a partition installed on the vent seat. The vent seat includes a plurality of card slots arranged in an alternating pattern. The partition is provided in a plurality of positions on the card slots and abuts against the contact surface of the slide rail. At least one partition is provided on each of the two contact surfaces of the slide rail and is arranged adjacent to each other. The vent seat is provided with an air supply channel and an air extraction channel. Each of the card slots has a concave portion and a convex portion, which respectively point to different contact surfaces of the slide rail portion. The concave portion and the convex portion are arranged alternately on a single contact surface. The air supply channel forms an air outlet chamber on the concave portion and the air extraction channel forms an air extraction chamber on the convex portion. The partition is installed on the air outlet chamber.

2. The guide rail assembly for a cutting device according to claim 1, characterized in that: The air outlet chamber is provided with limiting edges on both sides, and the air outlet chamber is provided with an opening at the end of the card seat. The top of the partition card is provided with relief grooves on both sides and is inserted into the limiting edges. The top of the partition card is provided with a first elastic element that abuts against the inner side of the air outlet chamber. The first elastic element provides elastic force to drive the partition card to move towards the contact surface of the slide rail.

3. The guide rail assembly for a cutting device according to claim 1, characterized in that: The partitions are arranged at intervals on the contact surface of the slide rail on the same side and are in contact with the partitions on the opposite side. The protrusion has a gap with the contact surface of the slide rail. The air extraction chamber forms a negative pressure space on the contact surface of the slide rail through the gaps between adjacent partitions or between the partitions and the slide block. The direct outlet of the air outlet chamber, which is equipped with the partition, originally formed on the recess is blocked by the partition, and the air extraction chamber opens as the direct outlet of the air outlet chamber is blocked.

4. A guide rail assembly for a cutting device according to claim 3, characterized in that: The middle part of the air extraction chamber is provided with a partition cavity along the length direction of the limiting edge of the seat portion. A plug is provided in the partition cavity through a second elastic element to block the air extraction channel and the direct outlet of the air extraction chamber formed on the protrusion. The partition card has a protruding conductive part at one end near the protrusion. The conductive part of the partition card installed in the air outlet cavity is embedded in the partition cavity. The conductive part has a conductive groove for connecting the air extraction cavity.

5. A guide rail assembly for a cutting device according to claim 4, characterized in that: The partition card has an air replenishment chamber at one end near the protrusion. The air replenishment chamber is connected from the top of the partition card to the bottom of the partition card and points between the air extraction chamber and the slide rail. The air replenishment chamber serves as an indirect outlet for the air outlet chamber formed on the concave part.

6. A guide rail assembly for a cutting device according to claim 4 or 5, characterized in that: The air outlet chamber without the partition card forms a positive pressure space outside the partition card of the previous air outlet chamber. The outer side of the vent seat has at least two air outlet chambers without partition cards. The air outlet chambers without the partition card form a cycle of negative and positive pressure with the previous air extraction chamber.

7. A guide rail assembly for a cutting device according to claim 1, characterized in that: The length of the air outlet chamber and the air extraction chamber is greater than the width of the contact surface of the slide rail. The two ends of the air outlet chamber and the air extraction chamber are located on the outer side of the contact surface in the projection on the plane where the contact surface is located.

8. A guide rail assembly for a cutting device according to claim 1, characterized in that: The two contact surfaces of the slide rail have an included angle, and the included angle is within the range of 60°-120°.

9. A guide rail assembly for a cutting device according to claim 2, characterized in that: The distance between the limiting edge and the contact surface of the slide rail is less than the distance from the top of the clearance groove of the partition card to the bottom of the partition card. A structural post is provided on the limiting edge at the opening at the end of the card seat. The structural post is used to restrict the degree of freedom of the partition card to move outward from the opening.

10. A guide rail assembly for a cutting device according to claim 1, characterized in that: The slide block is fixedly provided with a fixed block and detachably provided with a movable block. The slider is mounted on the fixed block and the movable block. An adjustment block is provided between the movable block and the fixed block to adjust the distance between the movable block and the fixed block.

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