An epoxy resin board cutting device
By introducing a limiting shell and gear rack system into the epoxy resin board cutting equipment, precise control of the cutting depth is achieved, solving the problem of inaccurate cutting depth in existing equipment and improving cutting accuracy and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YILIANBAO TECH CO LTD
- Filing Date
- 2025-07-08
- Publication Date
- 2026-06-30
AI Technical Summary
Existing epoxy resin board cutting equipment lacks a precise and convenient cutting depth control mechanism, making it difficult to accurately control the cutting depth, especially when fine control is required, resulting in large errors.
The limiting shell is coaxially set with the cutting disc. The cutting depth is limited by the limiting shell, and the synchronous movement of the limiting shell is achieved by the meshing of gears and racks. Combined with scales and marking lines, precise adjustment is achieved, replacing manual operation with a pad.
It achieves precise control over the cutting depth, avoids cumulative deviations caused by errors in the thickness of the backing plate and multiple layers, improves cutting accuracy and stability, and prevents cutting waste from splashing.
Smart Images
Figure CN224425699U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of epoxy resin board technology, specifically relating to an epoxy resin board cutting device. Background Technology
[0002] Cutting is an essential and critical step in the processing of epoxy resin boards. Depending on the processing requirements, commonly used cutting equipment includes hand tools, power tools, and CNC machines. Among these, handheld electric cutting equipment is of significant value in scenarios such as sample making, small-batch production, or on-site repair due to its flexibility, relatively low cost, and ease of movement.
[0003] A common technical flaw in current mainstream handheld epoxy resin board cutting equipment is the lack of a precise and convenient cutting depth control mechanism. These devices typically rely on operators manually setting the exposed length (cutting depth) of the saw blade or cutter based on experience. This adjustment is inaccurate and difficult to quantify and lock, leading to significant errors, especially when fine control is required. This is particularly pronounced in applications requiring "partial cuts" or "scratching lines" (i.e., cutting to a specific depth without completely severing the board, often used for pre-folding lines, decorative lines, grooving, or precise subsequent breaking). To address the depth control issue, operators are often forced to elevate the workpiece: placing the board on a pad and then cutting from above, indirectly limiting the cutting depth through the thickness of the pad.
[0004] However, existing cutting equipment cannot guarantee the accuracy of cutting depth. The thickness of the backing plate itself may have errors, and the cumulative error is even greater when multiple layers are stacked. The fit between the backing plate and the board, and between the backing plate and the worktable, is difficult to control perfectly, which can easily cause shaking and cause the actual cutting depth to deviate from the expected depth. Utility Model Content
[0005] The purpose of this invention is to provide an epoxy resin board cutting device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An epoxy resin board cutting device, comprising:
[0008] shell;
[0009] The cutting disc is installed inside the housing, with part of the blade exposed at the bottom of the housing.
[0010] Two limiting shells are symmetrically installed on the outside of the outer shell and coaxial with the cutting disc. The limiting shells are used to limit the depth to which the cutting disc cuts the material.
[0011] Preferably, a power source is installed on one side of the housing, and the output shaft of the power source passes through the side wall of the housing and is coaxially fixed to the cutting disc.
[0012] Preferably, the outer shell is provided with a connecting shaft on the other side of the power source, and two limiting shells are sleeved on the connecting shaft, and the connecting shaft coincides with the axis of the cutting disc.
[0013] Preferably, the outer side of the outer shell has two movable slots, which are symmetrically arranged, and the inner walls of the two limiting shells are equipped with movable blocks, which are slidably fitted into the corresponding movable slots.
[0014] Preferably, the side of the movable block facing the inner end face of the movable groove is connected to an elastic element, and the other end of the elastic element is fixed to the inner end of the movable groove.
[0015] Preferably, each of the two moving slots is provided with a limiting head, which is used to block the sliding stroke of the moving block.
[0016] Preferably, the housing comprises:
[0017] A connecting hole that connects the two movable slots;
[0018] Two racks are fixed to the corresponding limiting heads and extend into the connecting holes, with their teeth facing each other.
[0019] The gear is installed in the connecting hole and meshes between two racks. Rotating the gear can synchronously drive the two racks to move in opposite directions.
[0020] Preferably, a sliding hole is provided on the inner wall of the connecting hole, a bolt is installed on one side of the rack, the bolt passes through the connecting hole, a nut is installed on the bolt, and the nut is located on the outside of the outer shell.
[0021] Preferably, the movable groove is arc-shaped.
[0022] Preferably, the outer edge of the limiting shell is provided with a scale, and the surface of the outer shell is provided with a depth marking line corresponding to the scale.
[0023] This invention provides an epoxy resin board cutting device. Compared with the prior art, it has the following advantages: by replacing the manual pad with a limiting shell, the physical stop surface directly limits the cutting depth of the cutting disc, avoiding cumulative deviations caused by pad thickness errors or multiple layers, and eliminating the reliance on raising the workpiece during operation; the meshing of gears and racks drives the two limiting shells to move synchronously in opposite directions, ensuring that the limiting planes are at the same height. While providing limiting, the limiting shells can also further protect the cutting disc, preventing waste generated when the cutting disc cuts the board from splashing. Attached Figure Description
[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0025] Figure 2 This is a three-dimensional structural diagram from another perspective of the present invention.
[0026] Figure 3 This is a schematic cross-sectional view of the outer shell and the limiting shell proposed in this utility model.
[0027] Figure 4 This is a schematic diagram of the limiting shell and connecting shaft structure proposed in this utility model.
[0028] Figure 5 This is a schematic diagram of the rack, gear, and limiting head structure proposed in this utility model.
[0029] The reference numerals in the figure are as follows: 100, outer shell; 101, moving groove; 102, moving block; 103, elastic element; 104, connecting hole; 105, sliding hole; 200, cutting disc; 201, power source; 300, limiting shell; 301, connecting shaft; 400, limiting head; 401, rack; 402, gear; 403, bolt; 404, nut. Detailed Implementation
[0030] 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.
[0031] Reference Figures 1-5 An epoxy resin board cutting device includes: a housing 100; a cutting disc 200 installed inside the housing 100, with a portion of its blade exposed at the bottom of the housing 100; and two limiting shells 300, symmetrically installed on the outside of the housing 100 and coaxial with the cutting disc 200, the limiting shells 300 being used to limit the cutting depth of the cutting disc 200 in cutting the board.
[0032] In this embodiment, the coaxial limiting shell 300 establishes a geometric constraint reference by being set coaxially with the cutting disk 200, ensuring that the height of the limiting plane of the limiting shell 300 changes linearly with the rotation angle, thus eliminating eccentricity error. The limiting plane, as a physical stop surface that directly contacts the board, can limit the distance from the depth of the cutting disk 200 to the board, converting the rotation angle into a mechanical limiting height, replacing manual pad operation. Rotation around the axis achieves stepless adjustment, meeting the semi-through processing requirements of epoxy resin boards of different thicknesses.
[0033] A power source 201 is installed on one side of the housing 100. The output shaft of the power source 201 passes through the side wall of the housing 100 and is coaxially fixed to the cutting disc 200. The power source 201 adopts a servo motor or a stepper motor. The power source 201 and the coaxially fixed output shaft form a compact direct drive system, which avoids energy loss in the transmission chain, improves cutting stability and reduces edge chipping. The side-mounted layout optimizes the center of gravity of the equipment and enhances the balance of handheld operation.
[0034] Reference Figure 2 and Figure 4 The outer shell 100 is provided with a connecting shaft 301 on the other side of the power source 201. Two limiting shells 300 are sleeved on the connecting shaft 301, and the connecting shaft 301 coincides with the axis of the cutting disk 200. The connecting shaft 301 establishes a rotation reference axis independent of the cutting disk 200, isolates the influence of cutting vibration on the limiting accuracy, and realizes the lightweight adjustment of the limiting shell 300.
[0035] Reference Figure 1 and Figure 3 The outer side of the outer shell 100 has two moving grooves 101, which are symmetrically arranged. The inner walls of the two limiting shells 300 are equipped with moving blocks 102, which are slidably fitted into the corresponding moving grooves 101. The arc-shaped moving grooves 101 constrain the rotational motion trajectory, converting the rotation of the limiting shells 300 into precise arc displacement, preventing radial movement from causing the limiting plane to tilt. The moving blocks 102 and the moving grooves 101 fit together to form a low-resistance sliding pair, providing a smooth and jam-free operating feel.
[0036] Reference Figure 3 The movable block 102 is connected to an elastic element 103 on one side facing the inner end face of the movable groove 101, and the other end of the elastic element 103 is fixed to the inner end of the movable groove 101. The elastic element 103 is a spring or an elastic band, and the elastic element 103 provides a reset and restoring force for the movable block 102.
[0037] Reference Figure 3 and Figure 5 Each of the two moving slots 101 is equipped with a limiting head 400. The limiting head 400 is used to block the sliding stroke of the moving block 102. The limiting head 400 at both ends of the moving slot 101 acts as a mechanical stroke stopper, limiting the rotation angle range and preventing over-travel rotation from causing interference to the equipment structure.
[0038] Reference Figure 3 The outer casing 100 includes:
[0039] A connecting hole 104 connects the two movable slots 101;
[0040] Two racks 401 are fixed to the corresponding limiting heads 400 and extend into the connecting holes 104, with their teeth facing each other.
[0041] Gear 402 is installed in the connecting hole 104 and meshes between two racks 401. Rotating gear 402 can synchronously drive the two racks 401 to move in opposite directions. The connecting hole 104 integrates a closed transmission chamber to prevent dust from entering the gear pair 402. Gear 402 meshes with the racks 401 on both sides and forces them to move in opposite directions synchronously to ensure that the heights of the two limiting planes are absolutely consistent.
[0042] A sliding hole 105 is provided on the inner wall of the connecting hole 104. A bolt 403 is installed on one side of the rack 401. The bolt 403 passes through the connecting hole 104. A nut 404 is installed on the bolt 403. The nut 404 is located on the outside of the outer shell 100. The rack 401 can be locked onto the outer shell 100 by the nut 404 and the bolt 403, and the position of the rack 401 is fixed.
[0043] The movable slot 101 is arc-shaped.
[0044] The outer edge of the limiting shell 300 is provided with a scale, and the surface of the outer shell 100 is provided with a depth marking line corresponding to the scale. The scale on the outer edge of the limiting plane and the depth marking line of the outer shell 100 constitute a visual quantification system to realize the rapid correspondence between the rotation angle and the cutting depth.
[0045] During use, based on the thickness of the epoxy resin board to be cut, observe the scale on the outer edge of the limiting shell 300 and the depth marking line on the surface of the outer shell 100. Loosen the nut 404 and move the bolt 403. The bolt 403 drives the rack 401 to move, and the rack 401 drives the moving block 102 and the limiting shell 300 to move. The limiting shell 300 rotates on the connecting shaft 301 to align the scale with the marking line of the required cutting depth. The moving block 102 on the inner wall of the limiting shell 300 slides along the arc-shaped moving groove 101 on the outer side of the outer shell 100. Since the moving groove 101 constrains the rotational trajectory, it can prevent the limiting shell 300 from moving radially and causing the limiting plane to tilt. After the limiting shell 300 is adjusted to the correct position, tighten the nut 404 to lock the bolt 403 onto the outer shell 100, thereby fixing the position of the rack 401 and locking the position of the limiting shell 300, thus limiting the cutting depth of the cutting disc 200.
[0046] Start the power source 201 installed on one side of the outer casing 100 to directly drive the cutting disc 200 to rotate at high speed. Hold the cutting device and align the exposed portion of the cutting disc 200 at the bottom of the outer casing 100 with the position to be cut on the epoxy resin board, so that the limiting plane of the limiting shell 300 contacts the surface of the board. Since the limiting shell 300 and the cutting disc 200 are coaxially set, a geometric constraint reference is established. The limiting plane acts as a physical stop surface, which can limit the distance that the cutting disc 200 penetrates into the board, achieving precise control of the cutting depth. Push the device forward, and the board is cut under the rotating cutting action of the cutting disc 200. Turn off the power source 201 to complete the cutting of the epoxy resin board.
[0047] 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. An epoxy resin board cutting device, characterized in that, include: Outer shell (100); A cutting disc (200) is installed inside a housing (100), with part of its blade exposed at the bottom of the housing (100); Two limiting shells (300) are symmetrically installed on the outside of the outer shell (100) and coaxial with the cutting disc (200). The limiting shells (300) are used to limit the depth of the cutting disc (200) cutting the plate.
2. The epoxy resin board cutting equipment according to claim 1, characterized in that, A power source (201) is installed on one side of the housing (100), and the output shaft of the power source (201) passes through the side wall of the housing (100) and is coaxially fixed to the cutting disc (200).
3. The epoxy resin board cutting equipment according to claim 2, characterized in that, The outer shell (100) has a connecting shaft (301) on the other side of the power source (201), and two limiting shells (300) are sleeved on the connecting shaft (301), and the connecting shaft (301) coincides with the axis of the cutting disc (200).
4. The epoxy resin board cutting equipment according to claim 1, characterized in that, Two movable slots (101) are provided on the outer side of the outer shell (100). The two movable slots (101) are symmetrically arranged. Movable blocks (102) are installed on the inner walls of the two limiting shells (300). The movable blocks (102) are slidably fitted into the corresponding movable slots (101).
5. The epoxy resin board cutting equipment according to claim 4, characterized in that, The movable block (102) is connected to an elastic element (103) on one side of the inner end face of the movable groove (101), and the other end of the elastic element (103) is fixed to the inner end of the movable groove (101).
6. The epoxy resin board cutting equipment according to claim 4, characterized in that, Both moving slots (101) are equipped with limit heads (400), which are used to block the sliding stroke of the moving block (102).
7. The epoxy resin board cutting equipment according to claim 4, characterized in that, The housing (100) includes: A connecting hole (104) connects the two movable slots (101); Two racks (401) are fixed to the corresponding limiting heads (400) and extend into the connecting holes (104), with their teeth facing each other; The gear (402) is installed in the connecting hole (104) and meshes between the two racks (401). Rotating the gear (402) can synchronously drive the two racks (401) to move in opposite directions.
8. The epoxy resin board cutting equipment according to claim 7, characterized in that, A sliding hole (105) is provided on the inner wall of the connecting hole (104). A bolt (403) is installed on one side of the rack (401). The bolt (403) passes through the connecting hole (104). A nut (404) is installed on the bolt (403). The nut (404) is located on the outside of the outer shell (100).
9. The epoxy resin board cutting equipment according to claim 4, characterized in that, The moving groove (101) is arc-shaped.
10. The epoxy resin board cutting equipment according to claim 1, characterized in that, The outer edge of the limiting shell (300) is provided with a scale, and the surface of the outer shell (100) is provided with a depth marking line corresponding to the scale.