A cutting device for producing melamine tableware

Abstract

This utility model discloses a melamine tableware cutting device, including a worktable, a self-centering mechanism, a support, a hydraulic cylinder, an annular cutter, and a switching mechanism. The support is fixed to the worktable, and there are three annular cutters with different diameters. The switching mechanism is installed on the lower side of the support and connected to the three annular cutters. The switching mechanism is used to rotate the three annular cutters to switch positions. The hydraulic cylinder is fixed to the support and is used to move the annular cutters downward. The self-centering mechanism is installed on the lower side of the worktable and passes through it. This utility model uses the self-centering mechanism to drive three positioning rods to move synchronously, which can accurately position plates of different diameters to ensure more accurate subsequent cutting positions; the switching mechanism enables rapid switching of the three annular cutters with different diameters to adapt to the cutting needs of plates of different sizes.

Description

Technical Field

[0001] This utility model relates to the field of melamine tableware production technology, and in particular to a cutting device for melamine tableware production. Background Technology

[0002] When producing melamine tableware, a certain amount of allowance is often left at the edge of the melamine plate for subsequent trimming. Existing equipment in the melamine tableware trimming process generally suffers from three major problems: First, poor positioning adaptability. Most devices use fixed-specification positioning structures, requiring frequent disassembly and replacement of positioning components for tableware of different diameters. This is not only cumbersome but also prone to causing trimming position deviations due to positioning errors. Second, low cutter switching efficiency. Most devices are equipped with only a single-specification cutter. Changing to cutters of different diameters requires stopping the machine to disassemble the cutter mounting structure, resulting in lengthy debugging and severely impacting the continuous operation efficiency of the production line. Therefore, there is an urgent need to develop a melamine tableware trimming device that uses a self-centering mechanism to drive three positioning rods to move synchronously, accurately positioning plates of different diameters to ensure more precise trimming. Furthermore, a switching mechanism enables rapid switching between three different diameter annular cutters, adapting to the trimming needs of plates of different sizes. This would overcome the shortcomings of current applications and meet current requirements. Utility Model Content

[0003] The purpose of this invention is to provide a cutting device for the production of melamine tableware, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A melamine tableware production edge-cutting device includes a worktable, a self-centering mechanism, a support, a hydraulic cylinder, an annular cutter, and a switching mechanism. The support is fixed to the worktable. There are three annular cutters, each with a different diameter. The switching mechanism is installed on the lower side of the support and connected to the three annular cutters. The switching mechanism drives the three annular cutters to rotate and switch positions. The hydraulic cylinder is fixed to the support and drives the annular cutters downwards. The self-centering mechanism is installed on the lower side of the worktable and passes through it. The self-centering mechanism includes: a first motor, a large gear, a small gear, and a rotating shaft. The system comprises a rack, positioning rods, sliders, and guide rails. The first motor is fixed to the lower side of the worktable. The output shaft of the first motor is fixed to a large gear. Three small gears are evenly distributed on the outer side of the large gear and mesh with it. The small gears are rotatably connected to the worktable via a rotating shaft. The upper half of each small gear meshes with a rack. Each rack has a positioning rod fixed on it that passes through the worktable. The three positioning rods are evenly distributed in a circle with the axis of the hydraulic cylinder piston rod as a reference. A slider is fixed on the upper side of each rack. Each slider is slidably mounted on a guide rail, which is fixed to the lower side of the worktable.

[0006] Preferably, the worktable is provided with three limiting grooves for the movement of the positioning rod.

[0007] Preferably, the switching mechanism includes a second motor, a triangular turntable, guide rods, and springs. The second motor is fixed to the lower side of the bracket, and the output shaft of the second motor is fixed to the triangular turntable. The triangular turntable is circular with three guide rods evenly distributed on it. The guide rods pass through the triangular turntable and slide in contact with it. The bottom of the three guide rods is fixed to three annular cutters respectively. A spring is installed on the outer side of the upper half of each guide rod. The upper end of the spring is fixed to the guide rod, and the lower end is fixed to the triangular turntable. The piston rod of the hydraulic cylinder faces one of the guide rods.

[0008] Preferably, a hydraulic station is installed on the workbench, and the hydraulic cylinder is connected to the hydraulic station through an oil supply pipeline. The hydraulic station is used to supply hydraulic oil to the hydraulic cylinder to drive its operation.

[0009] Preferably, a PLC controller is installed on the workbench, and the first motor, the second motor, and the hydraulic station are all controlled by the PLC controller.

[0010] The beneficial effects of this utility model are as follows: In use, the melamine tableware cutting device first places the melamine plate upside down between three positioning rods. A first motor drives the large and small gears to rotate, which in turn moves the rack and positioning rods, causing the three positioning rods to move synchronously. This accurately positions melamine plates of different diameters. Then, a ring cutter of the appropriate diameter is rotated according to the diameter of the melamine plate. A second motor drives the triangular turntable, guide rod, and ring cutter to rotate, switching the position of the three ring cutters so that the ring cutter of the required diameter is positioned directly below the hydraulic cylinder. Finally, the hydraulic cylinder moves the guide rod downwards, which in turn moves the ring cutter downwards, allowing the ring cutter to cut off the excess edge of the melamine plate. In summary, this utility model, through a self-centering mechanism that drives the three positioning rods to move synchronously, can accurately position plates of different diameters, ensuring more precise cutting. The switching mechanism enables rapid switching between three ring cutters of different diameters, adapting to the cutting needs of plates of different sizes. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0012] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0013] Figure 3 This is a schematic diagram of the usage state of this utility model.

[0014] Figure 4 This is a partial structural diagram of the present invention. Figure 1 .

[0015] Figure 5 This is a partial structural diagram of the present invention. Figure 2 .

[0016] Legend:

[0017] 1. Workbench; 101. Limiting slide; 2. Self-centering mechanism; 201. First motor; 202. Large gear; 203. Small gear; 204. Rotating shaft; 205. Rack; 206. Positioning rod; 207. Slider; 208. Guide rail; 3. Support; 4. Hydraulic cylinder; 5. Circular cutter; 6. Switching mechanism; 601. Second motor; 602. Triangular turntable; 603. Guide rod; 604. Spring; 7. Hydraulic station; 8. PLC controller. Detailed Implementation

[0018] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0019] Specific implementation examples are given below.

[0020] See Figures 1-5 In this embodiment of the invention, a melamine tableware production edge-cutting device includes a workbench 1, a self-centering mechanism 2, a support 3, a hydraulic cylinder 4, an annular cutter 5, and a switching mechanism 6. The support 3 is fixed on the workbench 1. There are three annular cutters 5, each with a different diameter, to cut the edges of melamine plates of different sizes. The switching mechanism 6 is installed on the lower side of the support 3 and connected to the three annular cutters 5. The switching mechanism 6 is used to rotate and switch the three annular cutters 5. Position: The hydraulic cylinder 4 is fixed on the bracket 3. The hydraulic cylinder 4 is used to drive the annular cutter 5 to move downward. The self-centering mechanism 2 is installed on the lower side of the worktable 1 and passes through it. The self-centering mechanism 2 includes: a first motor 201, a large gear 202, a small gear 203, a rotating shaft 204, a rack 205, a positioning rod 206, a slider 207, and a guide rail 208. The first motor 201 is fixed on the lower side of the worktable 1. The output shaft of the first motor 201 is fixed to the large gear 202. Three small gears 203 are evenly distributed on the outer side of the wheel 202, meshing with it. Each small gear 203 is rotatably connected to the worktable 1 via a rotating shaft 204. The upper half of each small gear 203 meshes with a rack 205. Each rack 205 has a fixed positioning rod 206 that penetrates the worktable 1. The three positioning rods 206 are evenly distributed in a circle with the axis of the piston rod of the hydraulic cylinder 4 as a reference. A slider 207 is fixed to the upper side of each rack 205. Each slider 207... The plate is slidably mounted on a guide rail 208, which is fixed to the lower side of the worktable 1. The worktable 1 has three limiting grooves 101 evenly distributed for the movement of the positioning rods 206. In use, the plate is placed upside down between the three positioning rods 206. The first motor 201 drives the large gear 202 and the small gear 203 to rotate. The rotation of the small gear 203 drives the rack 205 and the positioning rods 206 to move, so that the three positioning rods 206 move synchronously, thereby accurately positioning plates of different diameters.

[0021] The switching mechanism 6 includes a second motor 601, a triangular turntable 602, guide rods 603, and springs 604. The second motor 601 is fixed to the lower side of the bracket 3. The output shaft of the second motor 601 is fixed to the triangular turntable 602. The triangular turntable 602 is circular with three guide rods 603 evenly distributed. The guide rods 603 pass through the triangular turntable 602 and slide in contact with it. The bottom of the three guide rods 603 is fixed to three annular cutters 5 respectively. A spring is installed on the outer side of the upper half of each guide rod 603. 604, the upper end of the spring 604 is fixed to the guide rod 603 and the lower end is fixed to the triangular turntable 602. The piston rod of the hydraulic cylinder 4 faces one of the guide rods 603. The output shaft of the second motor 601 rotates 120° each time to accurately switch the position of the three annular cutters 5. In use, the second motor 601 drives the triangular turntable 602, the guide rod 603 and the annular cutter 5 to rotate so as to switch the position of the three annular cutters 5, so that the annular cutters 5 of different diameters are switched to be directly below the hydraulic cylinder 4.

[0022] A hydraulic station 7 is installed on the workbench 1. The hydraulic cylinder 4 is connected to the hydraulic station 7 through an oil supply pipeline. The hydraulic station 7 is used to supply hydraulic oil to the hydraulic cylinder 4 to drive its operation.

[0023] The workbench 1 is equipped with a PLC controller 8. The first motor 201, the second motor 601 and the hydraulic station 7 are all controlled by the PLC controller 8. The PLC controller 8 is equipped with control buttons.

[0024] Working principle: This melamine tableware production edge-cutting device works by first placing the melamine plate upside down between three positioning rods 206. The first motor 201 drives the large gear 202 and the small gear 203 to rotate. The rotation of the small gear 203 drives the rack 205 and the positioning rods 206 to move, so that the three positioning rods 206 move synchronously, thereby accurately positioning melamine plates of different diameters. Then, the appropriate diameter annular cutter 5 is rotated according to the diameter of the melamine plate. The second motor 601 drives the triangular turntable 602, the guide rod 603, and the annular cutter 5 to rotate, so that the position of the three annular cutters 5 can be switched, so that the annular cutter 5 of the required diameter is switched to be directly below the hydraulic cylinder 4. Finally, the hydraulic cylinder 4 drives the guide rod 603 to move down, and the guide rod 603 drives the annular cutter 5 to move down, so that the annular cutter 5 cuts off the excess part of the edge of the melamine plate.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cutting device for producing melamine tableware, characterized in that, The system includes a worktable (1), a self-centering mechanism (2), a support (3), a hydraulic cylinder (4), an annular cutter (5), and a switching mechanism (6). The support (3) is fixed on the worktable (1). There are three annular cutters (5), each with a different diameter. The switching mechanism (6) is installed on the lower side of the support (3) and connected to the three annular cutters (5). The switching mechanism (6) is used to rotate the three annular cutters (5) to switch positions. The hydraulic cylinder (4) is fixed on the support (3) and is used to move the annular cutters (5) downward. The self-centering mechanism (2) is installed on the lower side of the worktable (1) and passes through it. The self-centering mechanism (2) includes: a first motor (201), a large gear (202), a small gear (203), a rotating shaft (204), a rack (205), a positioning rod (206), and a slider (207). The first motor (201) is fixed to the lower side of the worktable (1) and the guide rail (208). The output shaft of the first motor (201) is fixed to the large gear (202). Three small gears (203) are evenly distributed on the outer side of the large gear (202) and mesh with it. The small gears (203) are rotatably connected to the worktable (1) through the rotating shaft (204). The upper half of each small gear (203) meshes with a rack (205). Each rack (205) is fixed with a positioning rod (206) that passes through the worktable (1). The three positioning rods (206) are evenly distributed in a circle with the axis of the piston rod of the hydraulic cylinder (4) as the reference. Each rack (205) is fixed with a slider (207) on the upper side. Each slider (207) is slidably installed on a guide rail (208). The guide rail (208) is fixed to the lower side of the worktable (1).

2. The edge-cutting device for melamine tableware production according to claim 1, characterized in that, The workbench (1) is provided with three limiting grooves (101) for the movement of the positioning rod (206).

3. The edge-cutting device for melamine tableware production according to claim 1, characterized in that, The switching mechanism (6) includes: a second motor (601), a triangular turntable (602), a guide rod (603), and a spring (604). The second motor (601) is fixed to the lower side of the bracket (3). The output shaft of the second motor (601) is fixed to the triangular turntable (602). The triangular turntable (602) is circular with three guide rods (603) evenly distributed. The guide rods (603) pass through the triangular turntable (602) and slide in contact with it. The bottom of the three guide rods (603) is fixed to three annular cutters (5) respectively. A spring (604) is installed on the outer side of the upper half of each guide rod (603). The upper end of the spring (604) is fixed to the guide rod (603), and the lower end is fixed to the triangular turntable (602). The piston rod of the hydraulic cylinder (4) faces one of the guide rods (603).

4. The edge-cutting device for melamine tableware production according to claim 3, characterized in that, A hydraulic station (7) is installed on the workbench (1). The hydraulic cylinder (4) is connected to the hydraulic station (7) through an oil pipeline. The hydraulic station (7) is used to supply hydraulic oil to the hydraulic cylinder (4) to drive its operation.

5. The edge-cutting device for melamine tableware production according to claim 4, characterized in that, The workbench (1) is equipped with a PLC controller (8), and the first motor (201), the second motor (601) and the hydraulic station (7) are all controlled by the PLC controller (8).

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