Polishing device for plywood production

Abstract

The utility model discloses a polishing device for plywood production, which relates to the technical field of cart handles and comprises an outer frame, a first press roll and a second press roll, guide mechanisms which are symmetrically arranged are fixedly connected onto the outer frame, each guide mechanism comprises a mounting frame, and the mounting frames are slidably connected with the first press roll and the second press roll. A connecting mechanism is arranged on one side of the guiding mechanism and comprises a guiding rod and a limiting block, an extending frame is fixedly connected to the bottom of the guiding rod, a cleaning brush is inserted into the extending frame, and a blocking piece is rotationally connected to one end of the extending frame. Through the arrangement of the outer frame, the first compression rollers, the second compression rollers and the symmetrically-arranged guide mechanisms, it is ensured that the two first compression rollers always keep synchronous movement, the motor drives the sliding frame to drive the connecting rods and the T-shaped blocks to be in linkage, the second compression rollers and the first compression rollers form a continuous supporting plane when needed, and a larger supporting area is provided.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary device technology, specifically a sanding device for plywood production. Background Technology

[0002] Plywood is a three- or multi-layered sheet material made by rotary cutting logs into veneers or slicing timber into thin sheets and then gluing them together with adhesives. It usually uses an odd number of veneer layers and glues the adjacent veneer layers with the fiber directions perpendicular to each other.

[0003] However, the existing sanding equipment for plywood production is a double-sided sander. The sander has sanding rollers inside. Because there are gaps between the sanding rollers, when the length of the plywood is shorter than the gap, it will fall between the two sanding rollers when passing through the gap. Therefore, a new sanding equipment for plywood production is needed to solve the shortcomings of the existing equipment. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem that when the length of the plywood is shorter than the gap, it will fall between the two grinding rollers when passing through the gap, and to provide a grinding device for plywood production.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sanding device for plywood production, comprising...

[0006] The outer frame, two first pressure rollers, and two second pressure rollers;

[0007] Symmetrically arranged guide mechanisms are fixedly connected to the outer frame;

[0008] The guiding mechanism includes a mounting frame, which is slidably connected to the first pressure roller and the second pressure roller;

[0009] A connecting mechanism is provided on one side of the guiding mechanism. There are two sets of connecting mechanisms, which are arranged symmetrically.

[0010] The connecting mechanism includes a guide rod and a limiting block. An extension frame is fixedly connected to the bottom of the guide rod, a cleaning brush is inserted into the extension frame, and a baffle is rotatably connected to one end of the extension frame.

[0011] Preferably, the mounting frame has two first guide grooves, and a second guide groove is provided on the opposite side of the two first guide grooves. The two first guide grooves are slidably connected to two first pressure rollers respectively, and the second guide grooves are slidably connected to the second pressure rollers. The bottom of the mounting frame is fixedly connected to the outer frame, one end of the guide rod is rotatably connected to one of the first pressure rollers, and the limiting block is rotatably connected to the other first pressure roller.

[0012] Preferably, the guiding mechanism further includes a sliding frame, a motor, a drive rod, a guide rod, a sliding block, a connecting rod, and a T-shaped block. The bottom of the sliding frame is fixedly connected to the motor, and the output end of the motor is fixedly connected to the drive rod, which is threaded. The top of the sliding frame is fixedly connected to the top of the guide rod. The drive rod is threadedly connected to the mounting frame, and the guide rod is slidably connected to the mounting frame. The top of the sliding frame has a first sliding groove, which is slidably connected to the sliding block. One side of the sliding block is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the T-shaped block.

[0013] Preferably, the guide rod has a second sliding groove, and the second sliding groove and the limiting block are slidably connected.

[0014] Preferably, the first pressure roller passes through the first guide groove, the sliding block, and the connecting rod and is rotatably connected to the guide rod by screws, and the second pressure roller passes through the first guide groove and is rotatably connected to the bottom end of the T-shaped block.

[0015] Preferably, the bottom of the extension frame is provided with a dovetail groove, and the top of the cleaning brush is provided with a retaining strip, and the retaining strip and the dovetail groove are compatible.

[0016] Preferably, the top of the baffle and one end of the extension frame are rotatably connected, and the baffle has a rectangular structure.

[0017] Compared with existing technologies, this sanding device for plywood production has the following advantages:

[0018] I. This utility model ensures that the two first pressure rollers always move synchronously by setting an outer frame, a first pressure roller, a second pressure roller, and a symmetrically arranged guide mechanism. The motor drives the sliding frame to drive the connecting rod and the T-block to move in conjunction, so that the second pressure roller forms a continuous support plane with the first pressure roller when needed, providing a larger support area. The overall structure ensures that the plywood is evenly pressed and passes smoothly during the sanding process through mechanical linkage and guiding constraints, thus adapting to most situations.

[0019] Second, through the cooperative design of the guide rod and the limiting block in the connecting mechanism, this utility model ensures that the extension frame remains horizontal during the lifting process under the sliding constraint of the second sliding groove, avoiding tilting. The rigid fixed connection between the extension frame and the guide rod ensures that the vertical movement of the cleaning brush is synchronized with the pressure roller, thus improving the automation level of the equipment.

[0020] Third, this utility model, by setting a dovetail groove, a locking strip, a cleaning brush, and a baffle, ensures that the locking strip at the top of the cleaning brush is tightly engaged with the dovetail groove of the extension frame, restricting its degree of freedom and preventing shaking during the cleaning process. The baffle locks the insertion end of the cleaning brush by rotating, further eliminating the risk of horizontal displacement and maintaining the vertical stability of the cleaning brush, thereby ensuring that the plywood is reliably cleaned.

[0021] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the outer frame of this utility model;

[0024] Figure 3 This is a three-dimensional structural diagram of the guiding mechanism of this utility model;

[0025] Figure 4 This is an exploded structural diagram of the guiding mechanism of this utility model;

[0026] Figure 5 This is a three-dimensional structural diagram of the mounting bracket and sliding bracket of this utility model;

[0027] Figure 6 This is a side view of the guiding mechanism of this utility model.

[0028] Figure 7 This is a top cross-sectional view of the extension frame and cleaning brush of this utility model;

[0029] Figure 8 This is a bottom view of the extension frame of this utility model.

[0030] In the diagram: 1. Outer frame; 2. First pressure roller; 3. Second pressure roller; 4. Guide mechanism; 401. Mounting frame; 402. Sliding frame; 403. Motor; 404. Drive rod; 405. Guide rod; 406. Sliding block; 407. Connecting rod; 408. T-block; 5. Connecting mechanism; 501. Guide rod; 502. Limiting block; 6. Extension frame; 7. Cleaning brush; 8. Baffle; 9. First guide groove; 10. Second guide groove; 11. First sliding groove; 12. Second sliding groove; 13. Dovetail groove; 14. Locking strip. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figure 1-8As shown, this utility model provides a technical solution: a sanding device for plywood production, including an outer frame 1, two sets of guide mechanisms 4 symmetrically fixed to provide overall support, two first pressure rollers 2 and a second pressure roller 3. The guide mechanisms 4 are symmetrically connected to the outer frame 1. The height of the pressure rollers can be adjusted by the guide mechanisms 4 to form a continuous support platform, solving the problem of short plywood falling from the gap between the sanding rollers. The guide mechanism 4 includes a mounting frame 401, which is slidably connected to the first pressure roller 2 and the second pressure roller 3. A connecting mechanism 5 is provided on one side of the guide mechanism 4. There are two sets of connecting mechanisms 5, which are symmetrically arranged. The connecting mechanism 5 includes a guide rod 501 and a limiting block 502. An extension frame 6 is fixedly connected to the bottom of the guide rod 501. A cleaning brush 7 is inserted into the extension frame 6. The insertion of the extension frame 6 and the cleaning brush 7 enables immediate cleaning of debris after sanding. A baffle 8 is rotatably connected to one end of the extension frame 6. The rotatable connection design of the baffle 8 facilitates quick replacement of the cleaning brush 7 and enables continuous cleaning.

[0033] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the mounting frame 401 has two first guide grooves 9, and a second guide groove 10 is provided on the opposite side of the two first guide grooves 9. The two first guide grooves 9 are slidably connected to the two first pressure rollers 2 respectively, and the second guide groove 10 is slidably connected to the second pressure roller 3. The guiding function of the first guide grooves 9 and the second guide groove 10 ensures that the pressure rollers only rise and fall along the preset trajectory to avoid deviation. The bottom of the mounting frame 401 is fixedly connected to the outer frame 1. One end of the guide rod 501 is rotatably connected to one of the first pressure rollers 2, and the limiting block 502 is rotatably connected to the other first pressure roller 2. The rotatable connection between the guide rod 501 and the limiting block 502 ensures the stability when the two pressure rollers move synchronously.

[0034] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the guiding mechanism 4 also includes a sliding frame 402, a motor 403, a drive rod 404, a guide rod 405, a sliding block 406, a connecting rod 407, and a T-block 408. The bottom of the sliding frame 402 is fixedly connected to the motor 403, and the output end of the motor 403 is fixedly connected to the drive rod 404. The motor 403 has its own gearbox, and its output end is connected to the threaded drive rod 404, driving the sliding frame 402 to rise and fall. The drive rod 404 has threads and is threadedly connected to the mounting frame 401, converting the rotational motion into linear motion. The motor 403 precisely controls the rise and fall of the sliding frame 402, realizing stepless adjustment of the pressure roller height. The top of the sliding frame 402 and the guide rod 405 are also connected. The top end of the guide rod 405 is fixedly connected, the drive rod 404 and the mounting bracket 401 are threadedly connected, and the guide rod 405 and the mounting bracket 401 are slidably connected. The top of the sliding frame 402 is provided with a first sliding groove 11, and the first sliding groove 11 and the sliding block 406 are slidably connected. One side of the sliding block 406 is rotatably connected to one end of the connecting rod 407, and the other end of the connecting rod 407 is rotatably connected to the T-shaped block 408. The T-shaped block 408 is rotatably connected to the second pressure roller 3. Under the traction of the connecting rod 407, the sliding block 406 and the connecting rod 407 convert the vertical movement of the sliding frame 402 into the power of the T-shaped block 408, driving the second pressure roller 3 to move synchronously, forming a continuous support surface when necessary.

[0035] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a second sliding groove 12 is provided on the guide rod 501, and the second sliding groove 12 and the limiting block 502 are slidably connected. The sliding of the limiting block 502 in the second sliding groove 12 restricts the rotation of the guide rod 501, ensuring that the guide rod 501 can remain horizontal during movement, thereby maintaining the horizontality of the support platform.

[0036] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the first pressure roller 2 passes through the first guide groove 9, the sliding block 406, and the connecting rod 407 and is rotatably connected to the guide rod 501 by screws. The second pressure roller 3 passes through the first guide groove 9 and is rotatably connected to the bottom end of the T-shaped block 408. The screw fixation ensures the rigid connection between the pressure roller and the guide rod 501. The rotatable connection allows the pressure roller to move and rotate with the plywood when supporting it, reducing friction loss and providing a rotating shaft so that each structure can work normally.

[0037] like Figure 7 and Figure 8As shown, the bottom of the extension frame 6 is provided with a dovetail groove 13, and the top of the cleaning brush 7 is provided with a retaining strip 14. The retaining strip 14 and the dovetail groove 13 are compatible. The cross-sectional shape of the retaining strip 14 matches the dovetail groove 13, so as to achieve a tight fit for horizontal insertion and removal. The cooperation between the dovetail groove 13 and the retaining strip 14 enables the horizontal insertion and removal of the cleaning brush 7. Replacement can be completed without tools, improving maintenance efficiency.

[0038] like Figure 7 and Figure 8 As shown, the top of the baffle 8 is rotatably connected to one end of the extension frame 6. The baffle 8 has a rectangular structure. After the baffle 8 rotates, it locks the end of the cleaning brush 7 to prevent it from coming out of the dovetail groove 13, thus ensuring the stability of the cleaning brush 7 during high-speed operation of the equipment.

[0039] Working principle: First, when a shorter board needs to be sanded, the motor 403 is started, which drives the threaded drive rod 404 to rotate, causing the sliding frame 402 to rise and fall vertically along the guide rod 405. The rising and falling of the sliding frame 402 pushes the first pressure roller 2 through the sliding block 406, so that the first pressure roller 2 moves synchronously along the first guide groove 9, thereby adjusting the height between the first pressure roller 2 and the conveyor belt, as well as the distance between the first pressure rollers 2, so as to form a support structure that allows the plywood to pass smoothly through the gap between the sanding rollers.

[0040] When the board length is too short, the motor 403 is started, driving the threaded drive rod 404 to rotate, which drives the sliding frame 402 to descend vertically along the guide rod 405. When the first pressure roller 2 descends to the lowest point, the T-shaped block 408 is pulled by the connecting rod 407, which drives the second pressure roller 3 to move down synchronously along the second guide groove 10. At this time, the first pressure roller 2 and the second pressure roller 3 form a horizontal continuous pressure roller platform, filling the gap of the traditional grinding roller and ensuring the stable support of the short-sized plywood.

[0041] Meanwhile, during the lifting process, the guide rod 501 is limited by the limiting block 502, so that it can remain horizontal while moving up and down. At this time, the bottom of the cleaning brush 7 automatically descends to a height that matches the sanded plywood, thereby cleaning the surface of the sanded plywood.

[0042] When the cleaning brush 7 wears out, rotate the baffle 8 to pull the cleaning brush 7 out from inside the extension bracket 6, then replace it with a new cleaning brush 7, and twist the baffle 8 back to complete the replacement.

[0043] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sanding device for plywood production, characterized in that: include The outer frame, two first pressure rollers, and two second pressure rollers; Symmetrically arranged guide mechanisms are fixedly connected to the outer frame; The guiding mechanism includes a mounting frame, which is slidably connected to the first pressure roller and the second pressure roller; A connecting mechanism is provided on one side of the guiding mechanism, and two sets of the connecting mechanism are provided, which are arranged symmetrically. The connecting mechanism includes a guide rod and a limiting block. An extension frame is fixedly connected to the bottom of the guide rod, a cleaning brush is inserted into the extension frame, and a baffle is rotatably connected to one end of the extension frame.

2. The sanding device for plywood production according to claim 1, characterized in that: The mounting frame has two first guide grooves, and a second guide groove is provided on the opposite side of the two first guide grooves. The two first guide grooves are slidably connected to two first pressure rollers respectively. The second guide grooves are slidably connected to the second pressure rollers. The bottom of the mounting frame is fixedly connected to the outer frame. One end of the guide rod is rotatably connected to one of the first pressure rollers. The limiting block is rotatably connected to the other first pressure roller.

3. The sanding device for plywood production according to claim 2, characterized in that: The guiding mechanism further includes a sliding frame, a motor, a drive rod, a guide rod, a sliding block, a connecting rod, and a T-shaped block. The bottom of the sliding frame is fixedly connected to the motor, and the output end of the motor is fixedly connected to the drive rod. The drive rod has a thread. The top of the sliding frame is fixedly connected to the top of the guide rod. The drive rod is threadedly connected to the mounting frame. The guide rod is slidably connected to the mounting frame. The top of the sliding frame has a first sliding groove, which is slidably connected to the sliding block. One side of the sliding block is rotatably connected to one end of the connecting rod, and the other end of the connecting rod is rotatably connected to the T-shaped block.

4. The sanding device for plywood production according to claim 1, characterized in that: The guide rod has a second sliding groove, which is slidably connected to the limiting block.

5. The sanding device for plywood production according to claim 3, characterized in that: The first pressure roller passes through the first guide groove, the sliding block, and the connecting rod, and is rotatably connected to the guide rod by screws. The second pressure roller passes through the first guide groove and is rotatably connected to the bottom end of the T-shaped block.

6. The sanding device for plywood production according to claim 1, characterized in that: The bottom of the extension frame is provided with a dovetail groove, and the top of the cleaning brush is provided with a retaining strip, which is compatible with the dovetail groove.

7. The sanding device for plywood production according to claim 1, characterized in that: The top end of the baffle is rotatably connected to one end of the extension frame, and the baffle has a rectangular structure.

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