A pressure roller assembly for a floor cutting machine

Abstract

This utility model belongs to the field of flooring processing machinery technology, and discloses a pressure roller assembly for flooring slitting equipment, including: a frame, at least one pressure roller fixing assembly, a pair of compression spring assemblies, a pressure roller fixing frame, and at least one intermediate pressure roller group. A conveying channel suitable for conveying slab blanks is provided below the frame. The pressure roller fixing assemblies are horizontally spaced on the frame. Each pressure roller fixing assembly includes: the upper end of the compression spring assembly is fixedly mounted on the frame, and the lower end of the compression spring assembly has a connecting part; both ends of the pressure roller fixing frame are respectively hinged to the connecting parts of the corresponding compression spring assemblies; the intermediate pressure roller group is rotatably mounted on the pressure roller fixing frame, located above the conveying channel, and suitable for pressing the slab blank. This design prevents the pressure rollers from shifting during use, solves the safety hazard of the pressure rollers being cut by the saw blade, and improves the adaptability and production efficiency of the equipment.

Description

Technical Field

[0001] This utility model relates to a pressure roller assembly for a floor cutting machine, belonging to the field of floor processing machinery technology. Background Technology

[0002] Currently, the multi-blade saw equipment structure used in existing multi-layer solid wood flooring cutting and slitting production lines is as follows: Figure 1-2 As shown, the assembly includes a saw blade 11, a rubber pressure roller 12, and a transmission roller 13. A corresponding number of saw blades 11 are installed according to the required number of slabs 3 to be cut, along with an equal number of rubber pressure rollers 12. The slab 3 moves along the direction of material flow under the action of the transmission roller 13, forming the same number of strips after completely passing through the cutting area of ​​the saw blade 11. When the slab 3 passes through the cutting area of ​​the saw blade 11, the saw blade 11 exerts an upward force on the slab 3, causing it to deviate from its original running trajectory. The rubber pressure roller 12, located directly above the saw blade 11, presses firmly against the slab 3, preventing it from deviating from the set running trajectory and causing the saw kerf 16 to become skewed. Each rubber pressure roller 12 corresponds to one slab. However, during use, it was found that the fit between the rubber pressure roller 12 and the shaft loosens after a period of operation, causing the rubber pressure roller 12 to move along the shaft. This results in changes in the force on the slab 3 during equipment operation and production, leading to side bending of the slab after cutting. If the amount of movement is large, it may even move into the rotation area of ​​the saw blade 11, where the high-speed saw blade 11 will cut the rubber pressure roller 12 and render it ineffective. If the number of slabs 3 to be cut changes, the rubber pressure roller 12 must be disassembled, reassembled, and the spacing adjusted, which cannot adapt to production needs in a timely manner and restricts the continuity of production. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a pressure roller assembly for floor cutting equipment. It can prevent the pressure roller from moving around during use, solve the safety hazard of the pressure roller being cut by the saw blade, and improve the adaptability and production efficiency of the equipment.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0005] A pressure roller assembly for a floor slitting device includes:

[0006] A frame, with a conveying channel underneath suitable for conveying slabs;

[0007] At least one pressure roller fixing assembly, the pressure roller fixing assemblies being laterally spaced on the frame, the pressure roller fixing assemblies comprising:

[0008] A pair of compression spring assemblies, the upper end of which is fixedly mounted on the frame, and the lower end of which is provided with a connecting part;

[0009] A pressure roller fixing frame, wherein both ends of the pressure roller fixing frame are respectively hinged to the connecting parts of the corresponding compression spring assemblies;

[0010] At least one intermediate pressure roller assembly is rotatably mounted on the pressure roller fixing frame, located above the conveying channel and adapted to press the slab.

[0011] Furthermore, the compression spring assembly includes:

[0012] A fixing block, which is mounted on the frame, has a vertically penetrating hole;

[0013] The mounting stud is movably installed in the hole of the fixing block;

[0014] An adjusting nut, which is threadedly connected to the upper end of the mounting stud;

[0015] A spring seat, which is mounted on the lower part of the mounting stud;

[0016] A spring is sleeved on the mounting stud and located between the spring seat and the fixing block.

[0017] Furthermore, the pressure roller assembly for the floor slitting equipment also includes at least one powered rubber roller, which is a long cylindrical strip that spans the left and right sides of the conveying channel and is rotatably mounted on the frame.

[0018] Furthermore, the power rollers are provided in two pairs, and the two pairs of power rollers are respectively arranged on the front and rear sides of the pressure roller fixing assembly along the conveying direction of the conveying channel.

[0019] Furthermore, the connecting part of the compression spring assembly is provided with a pin hole, and one end of the pressure roller fixing frame is adapted to be hinged to the pin hole of the compression spring assembly through a pin.

[0020] Furthermore, the connecting part of the compression spring assembly is provided with a cylindrical boss, and one end of the pressure roller fixing frame is provided with a plug-in opening. The cylindrical boss is adapted to be inserted into the plug-in opening from the side to form a detachable connection.

[0021] Furthermore, the pressure roller fixing frame is provided with a plurality of spaced mounting holes along its length direction, and the intermediate pressure roller assembly includes a front intermediate pressure roller pair and a rear intermediate pressure roller pair that can be detachably installed in the mounting holes.

[0022] Furthermore, the front intermediate pressure roller pair is installed in the mounting holes on the pressure roller fixing frame near the entrance side of the conveying channel, and the front intermediate pressure roller pair is respectively installed on the left and right sides of the pressure roller fixing frame.

[0023] Furthermore, the rear intermediate pressure roller pair is installed in the mounting holes on the pressure roller fixing frame near the outlet side of the conveying channel, and the rear intermediate pressure roller pair is respectively installed on the left and right sides of the pressure roller fixing frame.

[0024] By adopting the above technical solution, this utility model has the following beneficial effects:

[0025] In this invention, during use, when the slab passes through the conveying channel, the compression spring assembly acts on the pressure roller fixing frame through its elastic force, causing the intermediate pressure roller group to apply balanced downward pressure and firmly press the slab down. Even if the slab thickness is uneven or the surface is slightly curved, the elasticity of the spring can ensure that the pressure roller always maintains proper contact with the slab, allowing the slab to move stably along the predetermined trajectory throughout the slitting process and avoiding skeletal distortion.

[0026] In addition, the pin hole connection or plug-in opening connection between the compression spring assembly and the pressure roller fixing frame facilitates the disassembly, assembly and adjustment of the pressure roller fixing frame; the design of multiple spaced mounting holes on the pressure roller fixing frame allows for flexible adjustment of the number and position of the front and rear intermediate pressure roller pairs according to the number of slabs to be cut; two pairs of power rubber rollers are respectively set on the front and rear sides of the pressure roller fixing assembly along the conveying direction to ensure that the slab maintains a stable movement state throughout the conveying process.

[0027] In summary, this utility model meets the processing needs of different slabs, solves the problems of loose rubber pressure rollers, easy damage by saw blades, and difficulty in quick adjustment in the prior art, and improves the quality of slit finished products as well as the continuity and safety of production. Attached Figure Description

[0028] Figure 1 A schematic diagram of the pressure plate structure used in the multi-blade saw equipment of the existing wood flooring cutting and slitting production line. Figure 1 ;

[0029] Figure 2 A schematic diagram of the pressure plate structure used in the multi-blade saw equipment of the existing wood flooring cutting and slitting production line. Figure 2 ;

[0030] Figure 3 Front view of the pressure roller assembly for the floor slitting equipment of this utility model;

[0031] Figure 4 A top view of the pressure roller assembly for the floor slitting equipment of this utility model. Detailed Implementation

[0032] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0033] like Figure 3-4 As shown, a pressure roller assembly for a floor slitting device includes:

[0034] The frame 1 has a conveying channel underneath suitable for conveying the slab 3;

[0035] Multiple pressure roller fixing assemblies are arranged laterally at intervals on frame 1.

[0036] The pressure roller fixing assembly includes:

[0037] A pair of compression spring assemblies, the upper end of the compression spring assembly is fixedly mounted on the frame 1, and the lower end of the compression spring assembly is provided with a connecting part;

[0038] The pressure roller fixing frame 5 has two ends that are respectively hinged to the connecting parts of the corresponding compression spring assemblies;

[0039] Two sets of intermediate pressure rollers 6 are rotatably mounted on the pressure roller fixing frame 5, located above the conveying channel and suitable for pressing the slab 3.

[0040] In this embodiment, as Figure 3 As shown, during use, when the slab 3 passes through the conveying channel, the compression spring assembly acts on the pressure roller fixing frame 5 through its elastic force, causing the intermediate pressure roller group 6 to apply a balanced downward pressure, firmly pressing the slab 3. Even if the thickness of the slab 3 is uneven or the surface is slightly bent, the elasticity of the spring can ensure that it always maintains proper contact with the slab 3, so that the slab 3 moves stably along the predetermined trajectory throughout the slitting process, avoiding the phenomenon of slanted saw cut.

[0041] Specifically, such as Figure 3 As shown, the compression spring assembly can have the following structure, including:

[0042] Fixing block 41 is mounted on frame 1 and has a vertical through hole;

[0043] Mounting stud 42 is movably mounted in the hole of fixing block 41;

[0044] Adjusting nut 43 is threaded onto the upper end of mounting stud 42;

[0045] Spring seat 44 is installed on the lower part of mounting stud 42;

[0046] Spring 45 is sleeved on mounting stud 42 and located between spring seat 44 and fixing block 41.

[0047] In this embodiment, as Figure 3As shown, during operation, when the wooden board blank 3 passes through the conveying channel, the compression spring assembly acts on the pressure roller fixing frame 5 through the elastic force of the spring 45, causing the intermediate pressure roller group 6 to apply downward pressure, thereby firmly pressing the board blank 3 onto the conveying channel. By adjusting the rotation position of the nut 43, the compression degree of the spring 45 can be adjusted, thereby adjusting the pressure applied by the intermediate pressure roller group 6 to adapt to board blanks 3 of different thicknesses or hardness.

[0048] In some embodiments, the number of intermediate pressure roller groups 6 is not limited to the number shown in the figure, and can be set according to the specific slab cutting requirements.

[0049] Specifically, such as Figure 3 As shown, the pressure roller assembly for the floor slitting equipment also includes four powered rubber rollers 7. The powered rubber rollers 7 are long cylindrical strips that span the left and right sides of the conveying channel and are rotatably mounted on the frame 1.

[0050] Specifically, such as Figure 3 As shown, there are two pairs of power rollers 7, which are respectively arranged on the front and rear sides of the pressure roller fixing assembly along the conveying direction of the conveying channel.

[0051] In this embodiment, as Figure 3 As shown, the powered rubber roller 7 plays a role in conveying the board blank 3 in the wood flooring cutting and slitting equipment. The powered rubber roller 7 has a long cylindrical structure that spans the left and right sides of the entire conveying channel. The surface of the powered rubber roller 7 is made of a material with a certain coefficient of friction to ensure sufficient friction between it and the board blank 3, thereby enabling stable conveying of the board blank 3. The powered rubber roller 7 is driven to rotate by an external power source (such as a motor). When the board blank 3 is placed on the conveying channel, the powered rubber roller 7 contacts the board blank 3, and the friction force drives the board blank 3 to move along the conveying direction.

[0052] The pair of powered rubber rollers 7 on the front side are responsible for conveying the slab 3 to the bottom of the pressure roller fixing assembly, ensuring that the slab 3 can smoothly enter the slitting area; while the pair of powered rubber rollers 7 on the rear side are responsible for continuing to convey the slab 3 that has passed through the slitting area forward.

[0053] Specifically, such as Figure 3 As shown, the connecting part of the compression spring assembly is provided with a pin hole, and one end of the pressure roller fixing bracket 5 is adapted to be hinged to the pin hole of the compression spring assembly through the pin 51.

[0054] Specifically, such as Figure 3 As shown, the connecting part of the compression spring assembly is provided with a cylindrical boss, and one end of the pressure roller fixing bracket 5 is provided with a plug-in opening 52. The cylindrical boss is adapted to be inserted into the plug-in opening 52 from the side to form a detachable connection.

[0055] In this embodiment, as Figure 3As shown, the connection between the compression spring assembly and the pressure roller fixing frame 5 employs two optional connection methods. Both methods facilitate disassembly and assembly and are adaptable to different usage situations. The first connection method is a pin connection. The connecting part of the compression spring assembly has a pin hole, and one end of the pressure roller fixing frame 5 also has a corresponding hole. The two are connected by a pin 51 to form a hinge structure. This hinge connection method allows the pressure roller fixing frame 5 to rotate around the pin 51 at a certain angle, enabling the pressure roller fixing frame 5 to swing up and down with the slight undulations on the surface of the slab 3, thereby maintaining uniform pressure on the slab 3.

[0056] The second connection method is a plug-in connection. The connecting part of the compression spring assembly has a cylindrical boss, and one end of the pressure roller fixing bracket 5 has a plug-in opening 52 that matches the shape of the cylindrical boss. During installation, simply insert the cylindrical boss into the plug-in opening 52 from the side to complete the connection.

[0057] Specifically, such as Figure 3-4 As shown, the pressure roller fixing frame 5 has eight spaced mounting holes 53 along its length, and the intermediate pressure roller group 6 includes a front intermediate pressure roller pair 61 and a rear intermediate pressure roller pair 62 that can be detachably installed in the mounting holes 53.

[0058] Specifically, such as Figure 3-4 As shown, the front intermediate pressure roller pair 61 is installed in the mounting hole 53 on the pressure roller fixing frame 5 near the entrance side of the conveying channel, and the front intermediate pressure roller pair 61 is installed on the left and right sides of the pressure roller fixing frame 5 respectively.

[0059] Specifically, such as Figure 3-4 As shown, the rear intermediate pressure roller pair 62 is installed in the mounting hole 53 on the pressure roller fixing frame 5 near the outlet side of the conveying channel, and the rear intermediate pressure roller pair 62 is installed on the left and right sides of the pressure roller fixing frame 5 respectively.

[0060] In this embodiment, as Figure 3-4 As shown, the mounting holes 53 of the pressure roller fixing bracket 5 provide a positional basis for the installation of the intermediate pressure roller assembly 6. Depending on the width of the slab 3 and the cutting requirements, different numbers of intermediate pressure roller assemblies 6 can be installed in the mounting holes 53 at the corresponding positions. The intermediate pressure roller assembly 6 mainly consists of two parts: the front intermediate pressure roller pair 61 and the rear intermediate pressure roller pair 62. Both of them are installed in the mounting holes 53 in a detachable manner, which facilitates adjustment or replacement according to actual needs.

[0061] The front intermediate pressure roller pair 61 is installed in the mounting hole 53 on the pressure roller fixing frame 5 near the entrance of the conveying channel. When the slab 3 first enters the slitting area, the front intermediate pressure roller pair 61 first contacts and presses the slab 3. The front intermediate pressure roller pair 61 is installed on the left and right sides of the pressure roller fixing frame 5 respectively, forming a symmetrical arrangement.

[0062] The rear intermediate pressure roller pair 62 is installed in the mounting holes 53 on the pressure roller fixing frame 5 near the outlet side of the conveying channel, responsible for keeping the slab 3 stable before it leaves the slitting area. Similar to the front intermediate pressure roller pair 61, the rear intermediate pressure roller pair 62 is also installed on the left and right sides of the pressure roller fixing frame 5, forming a symmetrical arrangement. In some embodiments, the configuration of the intermediate pressure roller group 6 is not limited to two pairs, and more pressure roller pairs can be set according to the length of the slitting equipment and the requirements for the stability of the slab 3.

[0063] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pressure roller assembly for a floor slitting device, characterized in that, include: A frame (1) is provided with a conveying channel suitable for conveying slabs (3) below the frame (1); At least one pressure roller fixing assembly is laterally spaced on the frame (1), and the pressure roller fixing assembly includes: A pair of compression spring assemblies, the upper end of which is fixedly mounted on the frame (1), and the lower end of which is provided with a connecting part; The pressure roller fixing frame (5) has two ends that are respectively hinged to the connecting parts of the corresponding compression spring assembly; At least one intermediate pressure roller assembly (6) is rotatably mounted on the pressure roller fixing frame (5), located above the conveying channel and adapted to press the slab (3).

2. The pressure roller assembly for the floor slitting equipment according to claim 1, characterized in that, The compression spring assembly includes: A fixing block (41) is mounted on the frame (1) and the fixing block (41) has a vertical through hole; Mounting stud (42), which is movably mounted in the hole of the fixing block (41); Adjusting nut (43), which is threaded to the upper end of the mounting stud (42); A spring seat (44) is mounted on the lower part of the mounting stud (42); A spring (45) is sleeved on the mounting stud (42) and located between the spring seat (44) and the fixing block (41).

3. The pressure roller assembly for the floor slitting equipment according to claim 1, characterized in that: It also includes at least one power roller (7), which is a long cylindrical shape, spans the left and right sides of the conveying channel, and is rotatably mounted on the frame (1).

4. The pressure roller assembly for the floor slitting equipment according to claim 3, characterized in that: The power rollers (7) are provided in two pairs, and the two pairs of power rollers (7) are respectively arranged on the front and rear sides of the pressure roller fixing assembly along the conveying direction of the conveying channel.

5. The pressure roller assembly for the floor slitting equipment according to claim 1, characterized in that: The connecting part of the compression spring assembly is provided with a pin hole, and one end of the pressure roller fixing bracket (5) is adapted to be hinged to the pin hole of the compression spring assembly through a pin (51).

6. The pressure roller assembly for the floor slitting equipment according to claim 1, characterized in that: The connecting part of the compression spring assembly is provided with a cylindrical boss, and one end of the pressure roller fixing frame (5) is provided with a plug-in opening (52). The cylindrical boss is adapted to be inserted into the plug-in opening (52) from the side to form a detachable connection.

7. The pressure roller assembly for the floor slitting equipment according to claim 1, characterized in that: The pressure roller fixing frame (5) has a plurality of spaced mounting holes (53) along its length direction, and the intermediate pressure roller group (6) includes a front intermediate pressure roller pair (61) and a rear intermediate pressure roller pair (62) that can be detachably installed in the mounting holes (53).

8. The pressure roller assembly for the floor slitting equipment according to claim 7, characterized in that: The front intermediate pressure roller pair (61) is installed in the mounting hole (53) on the pressure roller fixing frame (5) near the entrance side of the conveying channel. The front intermediate pressure roller pair (61) is installed on the left and right sides of the pressure roller fixing frame (5).

9. The pressure roller assembly for the floor slitting equipment according to claim 7, characterized in that: The rear intermediate pressure roller pair (62) is installed in the mounting hole (53) on the pressure roller fixing frame (5) near the outlet side of the conveying channel. The rear intermediate pressure roller pair (62) is installed on the left and right sides of the pressure roller fixing frame (5).

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