Leather polishing machine

Abstract

The utility model discloses a leather polishing machine, which belongs to the technical field of polishing equipment and comprises a leather polishing machine mounting base, strip-shaped grooves are symmetrically formed in the side wall of the base, a lead screw is rotatably connected to the inside of one strip-shaped groove, a motor is fixedly mounted at the upper end of the side wall of the base, and the motor is connected with the lead screw. A rotating shaft of the motor rotationally extends into the strip-shaped grooves and is fixedly connected to the tail end of a lead screw, U-shaped rods are slidably connected into the two strip-shaped grooves, the lead screw penetrates through one ends of the U-shaped rods in a threaded mode, and hydraulic cylinders are symmetrically and fixedly connected to the upper ends of the U-shaped rods; the telescopic end of the hydraulic cylinder extends to the position below the U-shaped rod and is fixedly connected with a mounting plate, the lower end of the mounting plate is fixedly connected with a plurality of first springs, and the lower ends of the first springs are fixedly connected with a fixing plate. Compared with the prior art, the device can effectively form buffering between the mounting plate and the polishing wheel, so that the polishing wheel is prevented from damaging leather due to overlarge pressure.

Description

Technical Field

[0001] The utility model belongs to the technical field of polishing equipment, in particular to a leather polishing machine. Background Art

[0002] Polishing machines are also called grinders and are often used for mechanical grinding, polishing and waxing. The motor drives the sponge or wool polishing disc installed on the polishing machine to rotate at high speed. Due to the combined effect of the polishing disc and the polishing agent, they rub against the surface to be polished.

[0003] Most of the existing polishing machines fix a hydraulic cylinder push rod polishing device at the lower end of a U-shaped frame, and then polish the leather through the polishing device. This polishing method directly pushes the polishing mechanism toward the leather through the hydraulic cylinder. Therefore, the hydraulic cylinder pressure may be too high, resulting in excessive squeezing force on the leather, causing excessive wear and damage to the leather.

[0004] For example, the existing Chinese patent number is: CN213295386U, a leather polishing machine, including a workbench; a transmission belt, arranged on the upper end surface of the workbench; a support frame, arranged on the side wall of the workbench; a polishing mechanism, fixedly connected to the support frame, the polishing mechanism includes a plurality of mounting tubes rotatably connected to the support frame, and a sealing plug is provided at the port above the mounting tube.

[0005] It can be seen that the patent document cited above also has the same problem. When in use, the device directly drives the polishing mechanism to move and squeeze the leather below through the cylinder. If the pressure of the cylinder is adjusted incorrectly and the pressure is too high, it will directly affect the polishing effect of the leather, and may even cause the leather to be worn through or damaged due to excessive pressure. Utility Model Content

[0006] The purpose of the utility model is to provide a leather polishing machine to solve the problems raised in the background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leather polishing machine, comprising a base for mounting the leather polishing machine, wherein the side walls of the base are symmetrically provided with strip grooves, wherein a screw rod is rotatably connected inside one of the strip grooves, a motor is fixedly installed on the upper end of the side wall of the base, and the rotating shaft of the motor rotates and extends to the inside of the strip groove and is fixedly connected to the end of the screw rod, two of the strip grooves are slidably connected inside with a U-shaped rod, the screw rod thread passes through one end of the U-shaped rod, the upper end of the U-shaped rod is symmetrically fixedly connected with a hydraulic cylinder, the telescopic end of the hydraulic cylinder extends to the bottom of the U-shaped rod and is fixedly connected with a mounting plate, the lower end of the mounting plate is fixedly connected with a plurality of first springs, the lower ends of the plurality of first springs are fixedly connected with a fixing plate, and the lower end of the fixing plate is rotatably installed with a polishing wheel.

[0008] Preferably, L-shaped grooves are provided on both sides of the upper end of the base, a rectangular block is slidably connected inside the L-shaped groove, a clamp is slidably connected inside the rectangular block, a screw is threadedly connected to the upper end of the rectangular block, and the screw extends into the interior of the rectangular block and is rotatably connected to the upper end of the clamp.

[0009] Preferably, L-shaped plates are fixedly connected to both sides of the base, a plurality of limiting cylinders are fixedly connected to the outer wall of the rectangular block, a telescopic rod is slidably connected inside the limiting cylinder, and the end of the telescopic rod is fixedly connected to the inner wall of the L-shaped plate.

[0010] Preferably, a second spring is fixedly connected to the interior of the limiting cylinder, and one end of the telescopic rod slidably connected to the interior of the limiting cylinder is fixedly connected to the end of the second spring.

[0011] Preferably, the inner wall of the limiting cylinder is symmetrically provided with limiting grooves, the side walls of the telescopic rod are symmetrically fixedly connected with limiting blocks, and the two limiting blocks are slidably connected to the inside of the two limiting grooves respectively.

[0012] Preferably, a limiting rod is fixedly connected inside the other strip-shaped groove, and the other end of the U-shaped rod penetrates and is slidably connected to the limiting rod.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The leather polishing machine places the leather on the upper end of the base and between the U-shaped rods and below the polishing wheel, then starts two hydraulic cylinders to drive the mounting plate, the first spring, the fixed plate and the polishing wheel to move toward the leather. When the lower end of the polishing wheel contacts the leather, the mounting plate squeezes the first springs, and then squeezes the fixed plate and the polishing wheel, thanks to the multiple first springs fixedly connected between the mounting plate and the fixed plate, so as to effectively prevent the hydraulic cylinder from directly driving the polishing wheel to squeeze the leather. Hard squeezing may cause damage to the leather. Compared with the prior art, the device can effectively form a buffer between the mounting plate and the polishing wheel, thereby preventing the polishing wheel from damaging the leather due to excessive pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the U-shaped rod, hydraulic cylinder and mounting plate in the utility model;

[0018] Figure 3 This is a schematic diagram of the connection of the rectangular block and the L-shaped plate in the utility model;

[0019] Figure 4 It is a planar cross-sectional view of the limiting cylinder in the utility model.

[0020] Description of reference numerals:

[0021] In the figure: 1. base; 2. strip groove; 3. screw rod; 4. motor; 5. U-shaped rod; 6. hydraulic cylinder; 7. mounting plate; 8. first spring; 9. fixing plate; 10. polishing wheel; 11. rectangular block; 12. clamping plate; 13. screw rod; 14. L-shaped plate; 15. limiting cylinder; 16. telescopic rod; 17. second spring; 18. limiting block; 19. limiting rod. DETAILED DESCRIPTION

[0022] like Figures 1 to 4 The leather polishing machine shown includes a base 1 for mounting the leather polishing machine, and strip grooves 2 are symmetrically opened on the side wall of the base 1, wherein a screw rod 3 is rotatably connected inside one of the strip grooves 2, a motor 4 is fixedly installed on the upper end of the side wall of the base 1, and the rotating shaft of the motor 4 rotates and extends to the inside of the strip groove 2 and is fixedly connected to the end of the screw rod 3, U-shaped rods 5 are slidably connected inside the two strip grooves 2, the screw rod 3 threadedly penetrates one end of the U-shaped rod 5, and a hydraulic cylinder 6 is symmetrically fixedly connected to the upper end of the U-shaped rod 5, and the telescopic end of the hydraulic cylinder 6 extends to the bottom of the U-shaped rod 5 and is fixedly connected to a mounting plate 7, a plurality of first springs 8 are fixedly connected to the lower end of the mounting plate 7, a fixed plate 9 is fixedly connected to the lower end of the plurality of first springs 8, and a polishing wheel 10 is rotatably installed on the lower end of the fixed plate 9, and a limiting rod 19 is fixedly connected inside the other strip groove 2, and the other end of the U-shaped rod 5 penetrates and is slidably connected to the limiting rod 19.

[0023] L-shaped grooves are provided on both sides of the upper end of the base 1, and a rectangular block 11 is slidably connected inside the L-shaped groove, and a clamping plate 12 is slidably connected inside the rectangular block 11. A screw 13 is threadedly connected to the upper end of the rectangular block 11, and the screw 13 extends into the interior of the rectangular block 11 and is rotatably connected to the upper end of the clamping plate 12. Rotating the screw 13 drives the clamping plate 12 to squeeze the leather until the leather is clamped.

[0024] An L-shaped plate 14 is fixedly connected to both sides of the base 1, a plurality of limiting cylinders 15 are fixedly connected to the outer wall of the rectangular block 11, a telescopic rod 16 is slidably connected inside the limiting cylinder 15, the end of the telescopic rod 16 is fixedly connected to the inner wall of the L-shaped plate 14, a second spring 17 is fixedly connected inside the limiting cylinder 15, one end of the telescopic rod 16 slidably connected to the inside of the limiting cylinder 15 is fixedly connected to the end of the second spring 17, when the leather is clamped, the limiting cylinder 15 and the rectangular block 11 are pulled toward the L-shaped plate 14 by the second spring 17 inside the limiting cylinder 15, thereby stretching the leather to both sides, thereby effectively flattening the leather, thereby preventing the leather from wrinkling and affecting the polishing effect.

[0025] The inner wall of the limiting cylinder 15 is symmetrically provided with limiting grooves, and the side walls of the telescopic rod 16 are symmetrically fixedly connected with limiting blocks 18. The two limiting blocks 18 are respectively slidably connected to the inside of the two limiting grooves, and the two limiting blocks 18 are slidably connected to the inside of the two limiting grooves, thereby effectively limiting the sliding direction of the telescopic rod 16.

[0026] How it works

[0027] When the leather polishing machine is used, the leather is first placed on the upper end of the base 1 and located between the U-shaped rods 5 and below the polishing wheel 10. Then, the two hydraulic cylinders 6 fixedly connected to the upper ends of the U-shaped rods 5 are started, and the mounting plate 7 is driven to move downward by the hydraulic cylinders 6. At the same time, the first spring 8 fixedly connected to its lower end and the fixed plate 9 and the polishing wheel 10 fixedly connected to the lower ends of the first spring 8 are driven by the mounting plate 7 to move toward the leather. When the lower end of the polishing wheel 10 contacts the leather, at this time, thanks to the multiple first springs 8 fixedly connected between the mounting plate 7 and the fixed plate 9, the first spring 8 is squeezed by the mounting plate 7, and then the fixed plate 9 and the polishing wheel 10 are squeezed toward the leather by the first spring 8, thereby effectively preventing the hydraulic cylinder 6 from directly driving the polishing wheel 10 to squeeze the leather. The leather may be damaged by the forced extrusion. Then, both sides of the leather are placed under the plywood 12 which is slidably connected inside the rectangular block 11. Then, the screw 13 is turned to drive the plywood 12 to squeeze the leather until the leather is clamped. At this time, thanks to the setting of the L-shaped plate 14, the limiting cylinder 15 and the telescopic rod 16, when the leather is clamped, the second spring 17 inside the limiting cylinder 15 pulls the limiting cylinder 15 and the rectangular block 11 toward the L-shaped plate 14, thereby stretching the leather to both sides, so as to effectively flatten the leather, so as to prevent wrinkles on the leather and affect the polishing effect. Then, the motor 4 is started to drive the screw rod 3 to rotate, and the U-shaped rod 5 threadedly sleeved on its rod wall is driven by the screw rod 3 to move, and the polishing wheel 10 is synchronously driven to slide along the surface of the leather, so as to polish the leather.

Claims

1. A leather polishing machine, comprising a base (1) for mounting the leather polishing machine, characterized in that: The side wall of the base (1) is symmetrically provided with strip grooves (2), one of the strip grooves (2) is rotatably connected to a screw rod (3), the upper end of the side wall of the base (1) is fixedly mounted with a motor (4), and the rotating shaft of the motor (4) is rotatably extended to the inside of the strip groove (2) and is fixedly connected to the end of the screw rod (3), the insides of the two strip grooves (2) are slidably connected with U-shaped rods (5), the screw rod (3) is threadedly penetrated through one end of the U-shaped rod (5), the upper end of the U-shaped rod (5) is symmetrically fixedly connected with a hydraulic cylinder (6), the telescopic end of the hydraulic cylinder (6) extends to the bottom of the U-shaped rod (5) and is fixedly connected with a mounting plate (7), the lower end of the mounting plate (7) is fixedly connected with a plurality of first springs (8), the lower ends of the plurality of first springs (8) are fixedly connected with a fixing plate (9), and the lower end of the fixing plate (9) is rotatably mounted with a polishing wheel (10).

2. A leather polishing machine according to claim 1, characterized in that: L-shaped grooves are provided on both sides of the upper end of the base (1), a rectangular block (11) is slidably connected inside the L-shaped groove, a clamping plate (12) is slidably connected inside the rectangular block (11), a screw rod (13) is threadedly connected through the upper end of the rectangular block (11), and the screw rod (13) extends through the interior of the rectangular block (11) and is rotatably connected to the upper end of the clamping plate (12).

3. A leather polishing machine according to claim 2, characterized in that: L-shaped plates (14) are fixedly connected to both sides of the base (1), a plurality of limiting cylinders (15) are fixedly connected to the outer wall of the rectangular block (11), a telescopic rod (16) is slidably connected inside the limiting cylinder (15), and the end of the telescopic rod (16) is fixedly connected to the inner wall of the L-shaped plate (14).

4. A leather polishing machine according to claim 3, characterized in that: The interior of the limiting cylinder (15) is fixedly connected to a second spring (17), and one end of the telescopic rod (16) slidably connected to the interior of the limiting cylinder (15) is fixedly connected to the end of the second spring (17).

5. A leather polishing machine according to claim 4, characterized in that: The inner wall of the limiting cylinder (15) is symmetrically provided with limiting grooves, and the side wall of the telescopic rod (16) is symmetrically fixedly connected with limiting blocks (18), and the two limiting blocks (18) are respectively slidably connected to the inside of the two limiting grooves.

6. A leather polishing machine according to claim 5, characterized in that: A limiting rod (19) is fixedly connected inside the other strip-shaped groove (2), and the other end of the U-shaped rod (5) penetrates and is slidably connected to the limiting rod (19).

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