A device for polishing a square

Abstract

This utility model belongs to the field of wooden pallet processing and provides a wooden square polishing device. The wooden square polishing device includes a machine housing, with a polishing mechanism and a conveyor table respectively arranged at the top and bottom of the machine housing. The polishing mechanism includes a fixed frame, on which a pair of reversing wheels are rotatably mounted. On the left and right sides of the fixed frame, symmetrically arranged about the reversing wheels, are a drive wheel, an adjusting wheel, and a pair of pressing wheels. A polishing belt is fitted between the reversing wheels, drive wheels, adjusting wheels, and pressing wheels. When changing the polishing belt, the adjusting arm is rotated inward using the adjusting handle. The polishing belt gradually loosens, and the spring is gradually compressed. When the adjusting arm is rotated to the correct position, the entire polishing belt can be easily removed. Another worker then fits the new polishing belt onto all the reversing wheels, drive wheels, adjusting wheels, and pressing wheels as required. Then, the adjusting handle is released, and the adjusting arm returns to its original position under the action of the spring. The adjusting wheel on the arm contacts the polishing belt, and the polishing belt is in a taut state.

Description

Technical Field

[0001] This utility model belongs to the field of wooden pallet processing, and in particular relates to a wooden polishing device. Background Technology

[0002] Wooden pallets are horizontal platform devices used for the assembly, stacking, handling, and transportation of goods and products as unit loads. Made of timber, wooden pallets typically consist of a front panel, a base plate, and padding blocks, forming a stable load-bearing structure that facilitates forklift handling.

[0003] To ensure the quality of wooden pallets, a polishing device is used to polish and sand the wood on multiple sides before processing and manufacturing the pallets, removing burrs. The polishing mechanism typically includes a fixed frame with a pulley assembly rotating on it, and a polishing belt fitted onto the pulley assembly. After prolonged use, if the surface of the polishing belt shows wear, it must be replaced promptly. Because the installation positions of each pulley in the pulley assembly are fixed, replacing the polishing belt is difficult, time-consuming, and labor-intensive. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a wood polishing device, which aims to solve the problem that it is difficult, time-consuming and labor-intensive to replace the polishing belt in existing wood polishing devices.

[0005] The present invention adopts the following technical solution:

[0006] The wood polishing device includes a housing, inside which polishing mechanisms and a conveyor table are respectively arranged at the top and bottom. The polishing mechanism includes a fixed frame, on which a pair of reversing wheels are rotatably mounted. On the left and right sides of the fixed frame, symmetrically arranged about the reversing wheels, are a drive wheel, an adjusting wheel, and a pair of pressure wheels. A polishing belt is fitted between the reversing wheels, drive wheels, adjusting wheels, and pressure wheels. The fixed frame has an adjusting component corresponding to the adjusting wheel. The adjusting component includes a support, on which an adjusting arm is rotatably mounted. The adjusting wheel is mounted on the adjusting arm via the fixed base. The adjusting arm has a short groove in the middle and an adjusting handle at the end. The fixed frame has a sliding sleeve, inside which a T-shaped sliding rod is inserted. The sliding rod has a spring, and a connecting piece is located at the top of the sliding rod. The short shaft on the connecting piece is located in the short groove. The fixed frame has a drive motor for driving the left drive wheel to rotate.

[0007] Furthermore, the fixed base is rotatably mounted on the adjusting arm, and the adjusting arm is provided with a threaded sleeve, in which a threaded rod is screwed, the end of which abuts against the fixed base.

[0008] Furthermore, the fixed frame is provided with a pair of left and right connecting frames facing downwards, the connecting frames are provided with a pair of pressing wheels, the connecting frames are provided with a lifting frame facing downwards, the lifting frame is provided with a polishing plate facing the polishing belt, the connecting frames are provided with a pair of adjustment grooves, the adjustment grooves are provided with T-shaped locking sleeves, the lifting frame is provided with a locking nut, and the end of the locking nut is screwed into the locking sleeve.

[0009] Furthermore, the locking sleeve has a pair of limiting sections located within the adjusting groove.

[0010] Furthermore, dust collection hoods are provided on the left and right sides of the chassis facing the fixed frame, and a negative pressure device is connected to the top of the dust collection hoods.

[0011] The beneficial effects of this utility model are as follows: When the polishing belt needs to be replaced, one worker uses the adjusting handle to rotate the adjusting arm. At that time, the adjusting wheel on the adjusting arm also rotates inward a short distance, and the polishing belt gradually loosens. During this process, the sliding rod slides a short distance within the sliding sleeve, and the spring is gradually compressed. After the adjusting arm is rotated to the correct position, the entire polishing belt can be easily removed. Another worker takes a new polishing belt and then places it on all the reversing wheels, drive wheels, adjusting wheels, and pressure wheels as required. After the new polishing belt is installed, the adjusting handle is released, and the adjusting arm returns to its original position under the action of the spring. The adjusting wheel on the arm abuts against the polishing belt, keeping the polishing belt in a taut state. Attached Figure Description

[0012] Figure 1 This utility model provides an overall drawing of a wood polishing device.

[0013] Figure 2 This utility model provides a schematic diagram of the polishing mechanism structure.

[0014] Figure 3 This is a schematic diagram of the adjustment component provided by this utility model.

[0015] Figure 4 This is a schematic diagram of the locking sleeve and locking nut provided by this utility model. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0017] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0018] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0019] Combination Figure 1-3 As shown, the wood polishing device includes a housing 1. A polishing mechanism and a conveyor table 2 are respectively installed above and below the housing 1. The polishing mechanism includes a fixed frame 3. A pair of reversing wheels 4 are rotatably mounted on the fixed frame 3. A drive wheel 5, an adjusting wheel 6, and a pair of pressure wheels 7 are symmetrically mounted on the left and right sides of the fixed frame 3 about the reversing wheels 4, and are respectively rotatably mounted on the left and right sides. A polishing belt 8 is fitted between the reversing wheels 4, drive wheels 5, adjusting wheels 6, and pressure wheels 7. An adjusting component is provided on the fixed frame 3 corresponding to the adjusting wheel 6. The adjusting component includes a support 9. A polishing belt 8 is mounted on the support 9. An adjusting arm 10 is provided, and the adjusting wheel 6 is mounted on the adjusting arm 10 via a fixed seat 11. The adjusting arm 10 has a short groove 27 in the middle and an adjusting handle 12 at the end. A sliding sleeve 13 is provided on the fixed frame 3, and a T-shaped sliding rod 14 is inserted into the sliding sleeve 13. The bottom of the sliding rod is limited below the sliding sleeve. A spring 15 is provided on the sliding rod 14, and a connecting piece 16 is provided at the top of the sliding rod 14. A short shaft 161 on the connecting piece 16 is located in the short groove 27. A drive motor 17 for driving the left drive wheel 5 to rotate is provided on the fixed frame 3.

[0020] Wooden pallets are made of timber and generally consist of a panel, a base, and pads to form a stable load-bearing structure that facilitates forklift handling. To ensure the quality of wooden pallets, this device can be used to polish and sand the timber on multiple sides before processing and manufacturing the pallets, removing any burrs.

[0021] When using this device to polish timber, the timber is first placed on a conveyor table. The conveyor table transports the timber toward the polishing mechanism, which simultaneously polishes the corresponding surfaces of the timber. When the polishing mechanism polishes the timber, the drive motor first drives the left drive wheel to rotate, which in turn rotates the entire polishing belt, thus polishing the timber. After one side of the timber is polished, it is removed and rotated 90 degrees so that the other unpolished side faces upwards. This unpolished side is then polished using the device.

[0022] During the polishing of timber using this device, if the polishing belt becomes worn, it needs to be replaced. In this embodiment, when the polishing belt needs to be replaced, one worker uses the adjusting handle to rotate the adjusting arm. The adjusting wheel on the adjusting arm rotates inward a short distance, gradually loosening the polishing belt. During this process, the sliding rod slides a short distance within the sliding sleeve, and the spring is gradually compressed. Once the adjusting arm is in position, the entire polishing belt can be easily removed. Another worker takes a new polishing belt and places it onto all the reversing wheels, drive wheels, adjusting wheels, and pressure wheels as required. After the new polishing belt is installed, the adjusting handle is released, and the adjusting arm returns to its original position under the action of the spring. The adjusting wheel on the arm then contacts the polishing belt, keeping the belt taut.

[0023] As a preferred structure, such as Figure 3 The fixed base 11 is rotatably mounted on the adjusting arm 10. The adjusting arm 10 is provided with a threaded sleeve 18, and a threaded rod 19 is screwed into the threaded sleeve 18. The end of the threaded rod 19 abuts against the fixed base 11.

[0024] In the above structure, the adjusting wheel is rotatably mounted on the fixed seat, and the fixed seat is rotatably mounted on the adjusting arm. Under normal conditions, the end of the threaded rod abuts against the fixed seat. After prolonged use, the polishing belt may experience a slight displacement in position. Therefore, to ensure stable rotation of the polishing belt, it is necessary to continue correcting its alignment. To move the polishing belt backward a small distance, while the polishing belt is rotating, the threaded rod is turned. The threaded rod pushes the fixed seat forward a small distance, and the polishing belt moves backward a small distance as a whole, until the correction is complete. Thus, the entire correction process for the polishing belt is relatively simple and quick.

[0025] In this structure, such as Figure 2-3 The fixed frame 3 is provided with a pair of left and right connecting frames 20 facing downwards. The connecting frame 20 is provided with a pair of pressure rollers 7. The connecting frame 20 is provided with a lifting frame 21 facing downwards. The lifting frame 21 is provided with a polishing plate 22 facing the polishing belt 8. The connecting frame 20 is provided with a pair of adjustment grooves 23. The adjustment grooves 23 contain T-shaped locking sleeves 24. The lifting frame 21 is provided with a locking nut 25, and the end of the locking nut 25 is screwed into the locking sleeve 24.

[0026] When using this device to polish and sand timber, to ensure the polishing effect, a lifting frame is provided facing downwards on the connecting frame, and a polishing plate is provided on the lifting frame facing the polishing belt. When the polishing belt polishes the timber, the polishing plate comes into contact with the polishing belt. Under the action of the polishing plate, the polishing belt can complete the polishing action more stably, and the polishing effect is better.

[0027] In this structure, the mounting position of the light plate can be adjusted slightly up and down. When it is necessary to change the mounting position of the light plate, first loosen the two locking nuts, then move the lifting frame vertically. During this process, the locking nuts move vertically along the height direction of the corresponding adjustment groove. After the light plate moves to the required position, tighten the two locking nuts one after the other, and the lifting frame is fixedly installed on the connecting frame.

[0028] The locking sleeve has a T-shaped structure. Figure 4 In this design, a portion of the locking sleeve is located outside the adjustment groove, and another portion is located inside the adjustment groove. A pair of limiting sections 26 are formed on the locking sleeve 24 within the adjustment groove 23. This design ensures that the locking sleeve will not rotate when the locking nut is tightened.

[0029] Finally, as Figure 1 The casing 1 has dust collection hoods 28 on its left and right sides facing the fixed frame 3. A negative pressure device (not shown in the figure) is connected to the top of each dust collection hood 28. During the polishing and sanding of the wood, sawdust and other debris are generated, which are collected by a recycling device. When polishing, the negative pressure device is activated to generate negative pressure, and the sawdust and other debris are collected by the dust collection hoods. Since the negative pressure device is not a key feature of this device, it will not be emphasized here.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A wood polishing device, characterized in that: The wood polishing device includes a housing, inside which polishing mechanisms and a conveyor table are respectively arranged at the top and bottom. The polishing mechanism includes a fixed frame, on which a pair of reversing wheels are rotatably mounted. On the left and right sides of the fixed frame, symmetrically arranged about the reversing wheels, are a drive wheel, an adjusting wheel, and a pair of pressure wheels. A polishing belt is fitted between the reversing wheels, drive wheels, adjusting wheels, and pressure wheels. The fixed frame has an adjusting component corresponding to the adjusting wheel. The adjusting component includes a support, on which an adjusting arm is rotatably mounted. The adjusting wheel is mounted on the adjusting arm via the fixed base. The adjusting arm has a short groove in the middle and an adjusting handle at the end. The fixed frame has a sliding sleeve, inside which a T-shaped sliding rod is inserted. The sliding rod has a spring, and a connecting piece is located at the top of the sliding rod. The short shaft on the connecting piece is located in the short groove. The fixed frame has a drive motor for driving the left drive wheel to rotate.

2. The wood polishing device as described in claim 1, characterized in that: The fixed base is rotatably mounted on the adjusting arm, and the adjusting arm is provided with a threaded sleeve. A threaded rod is screwed into the threaded sleeve, and the end of the threaded rod abuts against the fixed base.

3. The wood polishing device as described in claim 2, characterized in that: The fixed frame is provided with a pair of left and right connecting frames facing downwards. The connecting frames are provided with a pair of pressing wheels. The connecting frames are provided with a lifting frame facing downwards. The lifting frame is provided with a polishing plate facing the polishing belt. The connecting frames are provided with a pair of adjustment slots. The adjustment slots contain T-shaped locking sleeves. The lifting frame is provided with a locking nut. The end of the locking nut is screwed into the locking sleeve.

4. The wood polishing device as described in claim 3, characterized in that: The locking sleeve has a pair of limiting sections located in the adjustment groove.

5. The wood polishing device as described in claim 4, characterized in that: The chassis is equipped with dust collection hoods on the left and right sides facing the fixed frame, and the top of the dust collection hoods is connected to a negative pressure device.

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