Manual ceramic tile cutting machine capable of eliminating gap between bearing and guide rail through spiral spring
By using the design of coil springs and limit springs in the manual tile cutting machine, the clearance problem when the slider moves on the guide rail is solved, and the marking accuracy and assembly convenience are improved.
Patent Information
- Application Number
- CN202422761418.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-13
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-13
AI Technical Summary
When the slider of the existing manual tile cutter moves on the guide rail, the spring sheet is easily deformed to cause a gap, resulting in deflection of the marking line and poor use effect.
A spiral spring is used to replace the original spring sheet, and a limit spring is added. The spiral spring acts directly on the cylindrical pin to provide greater pressure and greater expansion and contraction to adapt to the thickness fluctuation of the guide rail. The bearing assembly is fixed with the limit spring to assemble into a slider.
The marking accuracy and use effect of the cutting machine are improved, and the assembly is made more convenient.
Smart Images
Figure CN223395513U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of manual tile cutters, in particular to a manual tile cutter with a spiral spring eliminating the gap between a bearing and a guide rail. Background Art
[0002] Conventional manual tile cutters primarily consist of a handle, baseplate, guide rail, slider, and cutter wheel. The guide rail is square in cross-section and is arranged parallel to the baseplate via a bracket. The slider slides on the rail, passing horizontally through the slider. The handle is hinged to the upper portion of the slider. The rear end of the handle forms a grip, which is located above the guide rail. The front end of the handle is located below the guide rail and is rotatably connected to the cutter wheel. To use the machine, place the tile on the baseplate, press down on the grip to bring the cutter wheel into contact with the tile, and push the handle, which moves along the guide rail via the slider, driving the guide wheel to move along the tile, scoring and cutting the tile.
[0003] In the existing manual tile cutting machine, the slider is an integral structure, and the guide rail is usually made of flat steel. In order to eliminate the unevenness and bending of the flat steel surface, the flat steel needs to be polished on all four sides. However, due to the influence of processing accuracy, the guide rail finally obtained will have an error of dozens of wires in height and width. In order to reduce the movement resistance of the slider and ensure the marking accuracy, two front and rear bearing assemblies are set on both sides of the thickness of the guide rail. The bearing assembly includes a cylindrical pin, and both ends of the cylindrical pin are provided with lateral bearings in contact with the guide rail. The cylindrical pin on one side of the guide rail is directly connected to the slider, and a spring sheet is provided between the two cylindrical pins on the other side of the guide rail. The middle part of the spring sheet is fixed to the slider, and the two ends of the spring sheet are elastically connected to the two cylindrical pins respectively, pressing the cylindrical pin against the guide rail, eliminating the gap between the lateral bearing and the guide rail, so that the slider can move accurately along the guide rail, so that the marking is straight.
[0004] During use, it was found that since the front and rear lateral bearings need to maintain a certain distance in order to better guide the guide rail, the distance between the two cylindrical pins is large, the length of the spring leaf is long, that is, the cantilever of the spring leaf is long, so the pressure on the cylindrical pin is small, and the pressure of the lateral bearing on the guide rail is small. Under the action of horizontal torsion, the spring leaf is easily deformed and a gap appears between the guide rail and the lateral bearing, resulting in skewed marking and poor use effect. Utility Model Content
[0005] The purpose of the utility model is to provide a manual tile cutter with a coil spring to eliminate the gap between the bearing and the guide rail. The utility model has the advantages of good use effect and convenient assembly.
[0006] The technical solution of the utility model is: a manual tile cutting machine with a spiral spring that eliminates the gap between the bearing and the guide rail, comprising a slider and a guide rail, the guide rail passing through the slider, at least two bearing assemblies are provided on both sides of the thickness of the guide rail, the bearing assembly includes a vertical cylindrical pin, both ends of the cylindrical pin are provided with lateral bearings in contact with the guide rail, both ends of the cylindrical pin on one side of the guide rail are connected to the slider through a spiral spring, and the spring presses the cylindrical pin toward the guide rail.
[0007] In the manual tile cutting machine in which the coil spring eliminates the gap between the bearing and the guide rail, both sides of the guide rail in the thickness direction are provided with limiting springs connected to the slider, and the limiting springs press all the cylindrical pins on the same side of the guide rail toward the slider.
[0008] In the aforementioned manual tile cutting machine in which the coil spring eliminates the gap between the bearing and the guide rail, two front and rear bearing assemblies are provided on both sides of the thickness of the guide rail, the middle part of the limiting spring is connected to the slider screw, and the two ends of the limiting spring are elastically connected to the corresponding two cylindrical pins.
[0009] In the aforementioned manual tile cutting machine in which the coil spring eliminates the gap between the bearing and the guide rail, the slider is composed of two side blocks, which are bolted together, and the guide rail passes through between the two side blocks. The inner side of the side block is recessed inward to form the mounting position of the bearing assembly.
[0010] In the aforementioned manual tile cutting machine in which the coil spring eliminates the gap between the bearing and the guide rail, the bottom of the guide rail is provided with a lower bearing connected to the slider, and the top of the guide rail is provided with an upper bearing connected to the slider.
[0011] In the aforementioned manual tile cutter in which the coil spring eliminates the gap between the bearing and the guide rail, the manual tile cutter also includes a handle, the front end of the handle is provided with an adapter block passed by the guide rail, and the upper end of the adapter block is hinged to the slider.
[0012] Compared with the prior art, the present invention replaces the original spring sheet used to compress the cylindrical pin with four spiral springs on the basis of the existing manual tile cutter, and adds a limiting spring sheet. Since the spiral spring can easily obtain a greater stiffness than the spring sheet and directly acts on the cylindrical pin, the force arm is short, so that the pressure on the cylindrical pin is large, the pressure of the lateral bearing on the guide rail is large, and the spiral spring has a larger expansion and contraction amount, which can better adapt to the thickness processing fluctuation error of the guide rail, making it less likely for the cutter to deflect when marking, and having a better use effect. By adding the limiting spring sheet, the bearing assembly is fixed on the side block, which facilitates the assembly of the two side blocks into a slider, making the assembly of the cutter convenient. Therefore, the present invention has the advantages of better use effect and more convenient assembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is an explosion diagram of the utility model.
[0014] Figure 2 It is a schematic diagram of the utility model in an assembled state.
[0015] Figure 3 It is a schematic front cross-sectional view of the slider.
[0016] Figure 4 It is a top cross-sectional schematic diagram of the slider.
[0017] Figure 5 It is a right side view of the side block on the left.
[0018] The markings in the accompanying drawings are: 1-guide rail, 2-cylindrical pin, 3-lateral bearing, 4-spring, 5-limiting spring, 6-slider, 7-lower bearing, 8-upper bearing, 9-handle, 10-adapter block, 11-mounting hole. DETAILED DESCRIPTION
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but they are not intended to limit the present invention.
[0020] Embodiment. A manual tile cutting machine with a coil spring to eliminate the gap between the bearing and the guide rail, such as Figure 1 As shown, it includes a slider 6, a guide rail 1, a base plate, a cutter wheel, and a handle 9. The guide rail 1 is arranged parallel to the base plate through a bracket, and the slider 6 is slidably arranged on the guide rail 1. The base plate, bracket and cutter wheel do not involve improvements to the prior art and are therefore not shown in the drawings.
[0021] The slider 6 is composed of two side blocks bolted together, with the guide rail 1 passing between them. Two bearing assemblies are located on either side of the guide rail 1's thickness. The inner sides of the side blocks are recessed to form mounting points for the bearing assemblies. The bearing assemblies include a vertical cylindrical pin 2, with lateral bearings 3 located at each end, contacting the guide rail 1.
[0022] The two cylindrical pins 2 on the left side of the guide rail 1 are connected to the slider 6 at both ends via a spiral spring 4. The spring 4 presses the cylindrical pins 2 into the guide rail 1. The left side block is provided with a mounting hole 11 for the spring 4, which is a high-strength compression spring, to ensure the expansion and contraction direction of the spring 4. The two cylindrical pins 2 on the right side of the guide rail are directly connected to the right side block.
[0023] Both sides of the guide rail 1 are equipped with stopper springs 5 connected to corresponding side blocks. These stopper springs 5 press the two cylindrical pins 2 on the same side of the guide rail 1 outward toward the side blocks. The center of the stopper spring 5 is screwed to a slider 6, and its ends are elastically connected to the center of the corresponding two cylindrical pins 2. The bends at both ends of the stopper spring 5 form grooves that mate with the cylindrical pins 2, limiting the radial movement of the cylindrical pins 2. The elastic force exerted by the stopper spring 5 on the cylindrical pins 2 is much weaker than that exerted by the spring 4.
[0024] The bottom of the guide rail 1 is provided with a lower bearing 7 connected to the slider 6, and there are two lower bearings 7 at the front and rear, for a total of four; the top of the guide rail 1 is provided with two upper bearings 8 at the front and rear, both of which are connected to the slider 6.
[0025] The front end of the handle 9 is provided with an adapter block 10 passed through by the guide rail 1 . The upper end of the adapter block 10 is hinged to the slider 6 , and the cutter wheel is rotatably connected to the adapter block 10 .
[0026] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
Claims
1. A manual tile cutting machine with a coil spring for eliminating the gap between a bearing and a guide rail, comprising a slider (6) and a guide rail (1), wherein the guide rail (1) passes through the slider (6), and at least two bearing assemblies are provided on both sides of the thickness direction of the guide rail (1), and the bearing assembly includes a vertical cylindrical pin (2), and both ends of the cylindrical pin (2) are provided with lateral bearings (3) in contact with the guide rail (1), characterized in that: Both ends of a cylindrical pin (2) on one side of the guide rail (1) are connected to a slider (6) via a spiral spring (4), and the spring (4) presses the cylindrical pin (2) toward the guide rail (1).
2. The manual tile cutter with a coil spring to eliminate the gap between the bearing and the guide rail according to claim 1, characterized in that: Both sides of the guide rail (1) in the thickness direction are provided with limiting spring pieces (5) connected to the slider (6), and the limiting spring pieces (5) press all cylindrical pins (2) located on the same side of the guide rail (1) toward the slider (6).
3. The manual tile cutter with a coil spring to eliminate the gap between the bearing and the guide rail according to claim 2, characterized in that: Two front and rear bearing assemblies are provided on both sides of the thickness direction of the guide rail (1); the middle of the limiting spring piece (5) is screw-connected to the slider (6); and the two ends of the limiting spring piece (5) are elastically connected to the corresponding two cylindrical pins (2).
4. The manual tile cutter with a coil spring to eliminate the gap between the bearing and the guide rail according to claim 1, characterized in that: The slider (6) is composed of two side blocks, which are connected by bolts. The guide rail (1) passes between the two side blocks, and the inner sides of the side blocks are recessed inward to form the installation position of the bearing assembly.
5. The manual tile cutter with a coil spring to eliminate the gap between the bearing and the guide rail according to claim 2, characterized in that: The bottom of the guide rail (1) is provided with a lower bearing (7) connected to the slider (6), and the top of the guide rail (1) is provided with an upper bearing (8) connected to the slider (6).
6. The manual tile cutter with a coil spring to eliminate the gap between the bearing and the guide rail according to claim 1, characterized in that: The manual tile cutter further comprises a handle (9), the front end of the handle (9) being provided with a transfer block (10) passed through by the guide rail (1), the upper end of the transfer block (10) being hinged to the slider (6).