Crayon point forming and cutting device

Abstract

The utility model relates to the technical field of crayon cutting, in particular to a crayon head forming and cutting device which can simultaneously cut and form two ends of a crayon and is high in cutting efficiency, convenient to use and high in practicability. Comprising a bottom plate, a base plate and a fixing plate, and the fixing plate is fixedly installed at the upper end of the bottom plate through the base plate; the bearing is fixedly installed on the upper portion of the fixing plate, the three-jaw chuck is rotatably installed on the bearing, the driving mechanism is installed on the three-jaw chuck and the fixing plate and used for driving the three-jaw chuck to rotate, and the two cutting mechanisms are both installed on the moving mechanism and used for driving the moving mechanism to rotate. The moving mechanism is used for moving the two cutting mechanisms, the cutting mechanisms have the cutting function, and the positioning mechanism is installed on the bottom plate and used for positioning crayons.

Description

Technical Field

[0001] The utility model relates to the technical field of crayon cutting, in particular to a crayon head forming and cutting device. Background Art

[0002] Crayons are the main tool for children to learn to draw and write. They are made by heating the raw materials to make them molten, and then putting the molten raw materials into a mold to form. In order to facilitate students' writing, the head of the crayon is usually set to a cone shape, but the head of the crayon is usually not well formed in the mold and is prone to debris. Therefore, the mold of the crayon is usually set with a certain processing allowance at the head of the crayon. After the crayon is taken out of the mold, the crayon head is cut by a cutting device to cut it into a cone. In the prior art, a utility model patent with patent application number 201720084994.9 discloses a crayon head forming and cutting device, which mainly includes a fixing device and a blade. When in use, the crayon is fixed by the fixing device, and then the head of the crayon is cut and formed by the blade. The inventor believes that there are the following problems during use. In the production process of two-color crayons, since both ends of the crayons are tapered, both ends of the crayons need to be cut, and the device in the above-mentioned prior art can only cut one end of the crayon, which makes it inconvenient to use and has low cutting efficiency. Therefore, a cutting device that can cut both ends of the crayon at the same time is needed. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a crayon head shaping and cutting device which can cut and shape the two ends of a crayon at the same time, has high cutting efficiency, is easy to use and has high practicality.

[0004] The utility model of the crayon head forming and cutting device comprises a bottom plate, a base plate and a fixed plate, wherein the fixed plate is fixedly mounted on the upper end of the bottom plate through the base plate; the utility model also comprises a bearing, a three-jaw chuck, a driving mechanism, a moving mechanism, two groups of cutting mechanisms and a positioning mechanism, wherein the bearing is fixedly mounted on the upper end of the fixed plate, the three-jaw chuck is rotatably mounted on the bearing, the driving mechanism is mounted on the three-jaw chuck and the fixed plate, the driving mechanism is used to drive the three-jaw chuck to rotate, the two groups of cutting mechanisms are both mounted on the moving mechanism, the moving mechanism is used to move the two groups of cutting mechanisms, the cutting mechanism has a cutting function, the positioning mechanism is mounted on the bottom plate, and the positioning mechanism is used to position the crayon; when cutting the head of the crayon, Firstly, a crayon is placed on a three-jaw chuck so that the left and right parts of the crayon are respectively located on the left and right sides of the three-jaw chuck; then, the crayon is positioned by a positioning mechanism so that the left and right parts of the crayon are respectively located above two groups of cutting mechanisms; then, the crayon is clamped and fixed by the three-jaw chuck; then, the three-jaw chuck is driven to rotate by a driving mechanism, and the three-jaw chuck drives the crayon to rotate; then, the two groups of cutting mechanisms are moved closer to each other by a moving mechanism until the two groups of cutting mechanisms contact the left and right parts of the crayon respectively, so that the two groups of cutting mechanisms cut and shape the left and right parts of the crayon respectively; it can cut and shape both ends of the crayon at the same time, has high cutting efficiency, is easy to use, and is highly practical.

[0005] Preferably, the driving mechanism includes sprocket A, chain, sprocket B, rotating shaft and driving motor, sprocket A is fixedly mounted on the three-jaw chuck, sprocket A is transmission connected with sprocket B through the chain, sprocket B is fixedly mounted on the rotating shaft, the rotating shaft is rotatably mounted on the fixed plate, the input end of the rotating shaft is connected to the driving motor, and the driving motor is fixedly mounted on the fixed plate; when cutting the crayons, the driving motor is turned on, the driving motor rotates sprocket B through the rotating shaft, sprocket B drives sprocket A to rotate the three-jaw chuck through the chain, and the three-jaw chuck drives the crayon to rotate, so that the crayon can be cut by the cutting mechanism during the rotation process; the cutting of crayons is convenient.

[0006] Preferably, the moving mechanism includes a support plate, a servo motor, a lead screw, two groups of sliders and a slide rail, the support plate is fixedly mounted on the upper end of the base plate, the servo motor is fixedly mounted on the support plate, the lead screw is rotatably mounted on the support plate and the base plate, the input end of the lead screw is connected to the servo motor, the left and right parts of the lead screw are respectively provided with external threads with opposite rotation directions, the two groups of sliders are respectively screwed with the left and right parts of the lead screw, the two groups of sliders are both slidably mounted on the slide rails, the slide rails are fixedly mounted on the upper end of the base plate, and the two groups of cutting mechanisms are respectively fixedly mounted on the upper ends of the two groups of sliders; when cutting the left and right parts of the crayon, the servo motor is turned on, the servo motor drives the lead screw to rotate, and the rotating lead screw brings the two groups of cutting mechanisms closer to each other through the two groups of sliders, so that the two groups of cutting mechanisms respectively contact the left and right parts of the crayon in the process of approaching each other, so that the two groups of cutting mechanisms can cut the left and right ends of the crayon; since it can adjust the distance between the two groups of cutting mechanisms, it can cut crayons of different lengths, is easy to use, and has low limitations.

[0007] Preferably, the cutting mechanism includes a support plate, an electric push rod, a support block and a milling cutter, the support plate is fixedly mounted on the upper end of the slider, the fixed end of the electric push rod is fixedly mounted on the support plate, the support block is fixedly mounted on the movable end of the upper part of the electric push rod, and the milling cutter is fixedly mounted on the upper end of the support block; when cutting the crayon, the crayon is first rotated, and then the milling cutter is moved horizontally toward the direction close to the crayon until the milling cutter contacts the head of the crayon, and then the electric push rod drives the support block to rise slowly, and the support block drives the milling cutter to rise slowly, so that the milling cutter moves slowly upward while approaching the crayon in the horizontal direction, and at the same time, the crayon rotates continuously so that the rotating crayon contacts the milling cutter, so that the milling cutter cuts the head of the crayon into a cone; the cutting and shaping of the milling cutter is facilitated.

[0008] Preferably, the positioning mechanism includes a bracket, a vertical plate, a servo electric cylinder, a push rod and a positioning plate. The bracket is fixedly mounted on the upper end of the base plate, the vertical plate is fixedly mounted on the upper end of the bracket, the servo electric cylinder is fixedly mounted on the vertical plate, the push rod is slidably mounted on the vertical plate, the left end of the push rod is connected to the output end of the servo electric cylinder, and the positioning plate is fixedly mounted on the right end of the push rod; a PLC controller is provided on the servo electric cylinder. When cutting the head of the crayon, after the first piece of crayon is placed on the three-jaw chuck, the staff uses a box ruler to measure the crayon and the cutting mechanism so that the crayon is located on the center line between the two sets of cutting mechanisms, and then the crayon is clamped and fixed by the three-jaw chuck, and then the push rod is driven to position by the servo electric cylinder. The plate moves to the right until the right end face of the positioning plate contacts the left end face of the crayon, and then the servo electric cylinder records the distance the push rod moves to the right, and records the position of the positioning plate at this time, and then the positioning plate moves to the left, and then the crayon is cut by the cutting mechanism, and then the cut crayon is removed, and then the servo electric cylinder drives the push rod to the right again until the positioning plate moves to the position recorded at the beginning, and then the second crayon to be cut is placed on the three-jaw chuck, and the left end of the crayon is aligned with the right end of the positioning plate, so as to ensure that the crayon is located at the midline between the two sets of cutting mechanisms; the positioning of the crayons is facilitated, and only the first crayon needs to be measured and positioned, which improves convenience.

[0009] Preferably, a rubber pad is provided at the right end of the positioning plate; through the above arrangement, the positioning plate is prevented from scratching the crayon, thereby improving reliability.

[0010] Preferably, a reducer is provided on the servo motor; through the above arrangement, the control of the output speed of the servo motor is facilitated.

[0011] Compared with the prior art, the utility model has the beneficial effects of being able to cut and shape the two ends of the crayon at the same time, having high cutting efficiency, being convenient to use and being highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a first axonometric structural schematic diagram of the utility model;

[0013] Figure 2 It is a second axonometric structural schematic diagram of the utility model;

[0014] Figure 3 It is a schematic diagram of the structure of the cutting mechanism and the moving mechanism;

[0015] Figure 4 It is a schematic diagram of the structure of the three-jaw chuck, axonometric and sprocket A, etc.;

[0016] Figure 5 It is a structural diagram of the positioning mechanism.

[0017] Markings in the attached drawings: 1. bottom plate; 2. base plate; 3. fixed plate; 4. bearing; 5. three-jaw chuck; 6. sprocket A; 7. chain; 8. sprocket B; 9. rotating shaft; 10. driving motor; 11. support plate; 12. servo motor; 13. lead screw; 14. slider; 15. slide rail; 16. support plate; 17. electric push rod; 18. support block; 19. milling cutter; 20. fixed plate; 21. vertical plate; 22. servo electric cylinder; 23. push rod; 24. positioning plate; 25. crayon. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0019] Example 1

[0020] like Figures 1 to 5 The crayon head forming and cutting device of the utility model comprises a bottom plate 1, a base plate 2, a fixed plate 3, a bearing 4, a three-jaw chuck 5, a driving mechanism, a moving mechanism, two groups of cutting mechanisms and a positioning mechanism. The fixed plate 3 is fixedly mounted on the upper end of the bottom plate 1 through the base plate 2, the bearing 4 is fixedly mounted on the upper part of the fixed plate 3, the three-jaw chuck 5 is rotatably mounted on the bearing 4, the driving mechanism is mounted on the three-jaw chuck 5 and the fixed plate 3, the driving mechanism is used to drive the three-jaw chuck 5 to rotate, the two groups of cutting mechanisms are mounted on the moving mechanism, the moving mechanism is used to move the two groups of cutting mechanisms, the cutting mechanism has a cutting function, the positioning mechanism is mounted on the bottom plate 1, and the positioning mechanism is used to position the crayon; when cutting the head of the crayon 25, first, The crayon 25 is placed on the three-jaw chuck 5 so that the left and right parts of the crayon 25 are respectively located on the left and right sides of the three-jaw chuck 5. The crayon 25 is then positioned by a positioning mechanism so that the left and right parts of the crayon 25 are respectively located above the two groups of cutting mechanisms. The crayon 25 is then clamped and fixed by the three-jaw chuck 5. The three-jaw chuck 5 is then driven to rotate by a driving mechanism, and the three-jaw chuck 5 drives the crayon 25 to rotate. The two groups of cutting mechanisms are then moved closer to each other by a moving mechanism until the two groups of cutting mechanisms contact the left and right parts of the crayon 25 respectively, so that the two groups of cutting mechanisms cut and shape the left and right parts of the crayon 25 respectively. The two ends of the crayon can be cut and shaped at the same time, and the cutting efficiency is high, the use is convenient, and the practicability is high.

[0021] like Figure 1 and Figure 4The driving mechanism includes a sprocket A6, a chain 7, a sprocket B8, a rotating shaft 9 and a driving motor 10. The sprocket A6 is fixedly mounted on the three-jaw chuck 5. The sprocket A6 is connected to the sprocket B8 through the chain 7. The sprocket B8 is fixedly mounted on the rotating shaft 9. The rotating shaft 9 is rotatably mounted on the fixed plate 3. The input end of the rotating shaft 9 is connected to the driving motor 10. The driving motor 10 is fixedly mounted on the fixed plate 3. When cutting the crayon 25, the driving motor 10 is turned on. The driving motor 10 rotates the sprocket B8 through the rotating shaft 9. The sprocket B8 drives the three-jaw chuck 5 to rotate through the chain 7. The three-jaw chuck 5 drives the crayon 25 to rotate, so that the crayon 25 can be cut by the cutting mechanism during the rotation process; the cutting of the crayon 25 is convenient.

[0022] like Figure 3 The moving mechanism includes a support plate 11, a servo motor 12, a lead screw 13, two sets of sliders 14 and a slide rail 15. The support plate 11 is fixedly mounted on the upper end of the base plate 1, the servo motor 12 is fixedly mounted on the support plate 11, the lead screw 13 is rotatably mounted on the support plate 11 and the base plate 2, the input end of the lead screw 13 is connected to the servo motor 12, the left and right parts of the lead screw 13 are respectively provided with external threads with opposite rotation directions, the two sets of sliders 14 are respectively screwed with the left and right parts of the lead screw 13, the two sets of sliders 14 are both slidably mounted on the slide rail 15, the slide rail 15 is fixedly mounted on the upper end of the base plate 1, and the two sets of cutting The mechanisms are fixedly mounted on the upper ends of the two sets of sliders 14 respectively; when cutting the left and right parts of the crayon 25, the servo motor 12 is turned on, and the servo motor 12 drives the lead screw 13 to rotate. The rotating lead screw 13 makes the two sets of cutting mechanisms approach each other through the two sets of sliders 14, so that the two sets of cutting mechanisms contact the left and right parts of the crayon 25 respectively during the process of approaching each other, so that the two sets of cutting mechanisms can cut the left and right ends of the crayon 25; because the distance between the two sets of cutting mechanisms can be adjusted, crayons 25 of different lengths can be cut, which is easy to use and has few limitations.

[0023] like Figure 3 The cutting mechanism includes a support plate 16, an electric push rod 17, a support block 18 and a milling cutter 19, wherein the support plate 16 is fixedly mounted on the upper end of the slider 14, the fixed end of the electric push rod 17 is fixedly mounted on the support plate 16, the support block 18 is fixedly mounted on the movable end of the upper part of the electric push rod 17, and the milling cutter 19 is fixedly mounted on the upper end of the support block 18; when cutting the crayon 25, the crayon 25 is first rotated, and then the milling cutter 19 is moved horizontally toward the direction close to the crayon 25 until the milling cutter 19 contacts the head of the crayon 25, and then the electric push rod 17 drives the support block 18 to rise slowly, and the support block 18 drives the milling cutter 19 to rise slowly, so that the milling cutter 19 moves slowly upward while approaching the crayon 25 in the horizontal direction, and at the same time, the crayon 25 rotates continuously, so that the rotating crayon 25 contacts the milling cutter 19, so that the milling cutter 19 cuts the head of the crayon 25 into a cone; the cutting and molding of the milling cutter 19 is convenient.

[0024] like Figure 1 and Figure 5 The positioning mechanism includes a bracket 20, a vertical plate 21, a servo electric cylinder 22, a push rod 23 and a positioning plate 24. The bracket 20 is fixedly mounted on the upper end of the base plate 1, the vertical plate 21 is fixedly mounted on the upper end of the bracket 20, the servo electric cylinder 22 is fixedly mounted on the vertical plate 21, the push rod 23 is slidably mounted on the vertical plate 21, the left end of the push rod 23 is connected to the output end of the servo electric cylinder 22, and the positioning plate 24 is fixedly mounted on the right end of the push rod 23; a plc controller is provided on the servo electric cylinder 22. When cutting the head of the crayon 25, when the first piece of crayon 25 is placed on the three-jaw chuck 5, the staff uses a box ruler to measure the crayon 25 and the cutting mechanism so that the crayon 25 is located on the midline between the two sets of cutting mechanisms, and then the crayon 25 is clamped and fixed by the three-jaw chuck 5, and then the push rod 2 is moved by the servo electric cylinder 22. 3 drives the positioning plate 24 to move rightward until the right end face of the positioning plate 24 contacts the left end face of the crayon 25, then the servo electric cylinder 22 records the distance that the push rod 23 moves rightward, records the position of the positioning plate 24 at this time, then moves the positioning plate 24 to the left, and then the crayon 25 is cut by the cutting mechanism, and then the cut crayon 25 is removed, and then the servo electric cylinder 22 drives the push rod 23 to move rightward again until the positioning plate 24 moves to the position recorded at the beginning, and then the second crayon 25 to be cut is placed on the three-jaw chuck 5, so that the left end of the crayon 25 is aligned with the right end of the positioning plate 24, so that the crayon 25 can be ensured to be located at the midline between the two sets of cutting mechanisms; the positioning of the crayon 25 is facilitated, and only the first crayon 25 needs to be measured and positioned, which improves convenience.

[0025] The servo motor 12 is provided with a reducer; through the above arrangement, the output speed control of the servo motor 12 is facilitated.

[0026] Example 2

[0027] On the basis of Embodiment 1, a rubber pad is provided at the right end of the positioning plate 24; through the above arrangement, the positioning plate 24 is prevented from scratching the crayon 25, thereby improving reliability.

[0028] The bearings 4, three-jaw chuck 5, drive motor 10, servo motor 12, electric push rod 17, milling cutter 19 and servo electric cylinder 22 of the crayon head forming and cutting device of the utility model are all purchased on the market. The technicians in this industry only need to install and operate them according to the accompanying instruction manual, and the technicians in this field do not need to make creative labor.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A crayon head forming and cutting device, comprising a bottom plate (1), a base plate (2) and a fixing plate (3), wherein the fixing plate (3) is fixedly mounted on the upper end of the bottom plate (1) through the base plate (2); characterized in that: The invention also comprises a bearing (4), a three-jaw chuck (5), a driving mechanism, a moving mechanism, two groups of cutting mechanisms and a positioning mechanism. The bearing (4) is fixedly mounted on the upper part of the fixed plate (3). The three-jaw chuck (5) is rotatably mounted on the bearing (4). The driving mechanism is mounted on the three-jaw chuck (5) and the fixed plate (3). The driving mechanism is used to drive the three-jaw chuck (5) to rotate. The two groups of cutting mechanisms are both mounted on the moving mechanism. The moving mechanism is used to move the two groups of cutting mechanisms. The cutting mechanisms have a cutting function. The positioning mechanism is mounted on the bottom plate (1). The positioning mechanism is used to position the crayon.

2. A crayon head forming and cutting device as claimed in claim 1, characterized in that: The driving mechanism comprises a sprocket A (6), a chain (7), a sprocket B (8), a rotating shaft (9) and a driving motor (10); the sprocket A (6) is fixedly sleeved on the three-jaw chuck (5); the sprocket A (6) is transmission-connected to the sprocket B (8) via the chain (7); the sprocket B (8) is fixedly mounted on the rotating shaft (9); the rotating shaft (9) is rotatably mounted on the fixed plate (3); the input end of the rotating shaft (9) is connected to the driving motor (10); and the driving motor (10) is fixedly mounted on the fixed plate (3).

3. A crayon head forming and cutting device as claimed in claim 1, characterized in that: The moving mechanism comprises a support plate (11), a servo motor (12), a lead screw (13), two groups of sliders (14) and a slide rail (15); the support plate (11) is fixedly mounted on the upper end of the base plate (1); the servo motor (12) is fixedly mounted on the support plate (11); the lead screw (13) is rotatably mounted on the support plate (11) and the base plate (2); the input end of the lead screw (13) is connected to the servo motor (12); the left and right parts of the lead screw (13) are respectively provided with external threads with opposite rotation directions; the two groups of sliders (14) are respectively screwed to the left and right parts of the lead screw (13); the two groups of sliders (14) are both slidably mounted on the slide rail (15) to the left and right; the slide rail (15) is fixedly mounted on the upper end of the base plate (1); and the two groups of cutting mechanisms are respectively fixedly mounted on the upper ends of the two groups of sliders (14).

4. A crayon head forming and cutting device as claimed in claim 3, characterized in that: The cutting mechanism comprises a support plate (16), an electric push rod (17), a support block (18) and a milling cutter (19); the support plate (16) is fixedly mounted on the upper end of the slider (14); the fixed end of the electric push rod (17) is fixedly mounted on the support plate (16); the support block (18) is fixedly mounted on the movable end of the upper part of the electric push rod (17); and the milling cutter (19) is fixedly mounted on the upper end of the support block (18).

5. A crayon head forming and cutting device as claimed in claim 1, characterized in that: The positioning mechanism comprises a bracket (20), a vertical plate (21), a servo electric cylinder (22), a push rod (23) and a positioning plate (24); the bracket (20) is fixedly mounted on the upper end of the base plate (1); the vertical plate (21) is fixedly mounted on the upper end of the bracket (20); the servo electric cylinder (22) is fixedly mounted on the vertical plate (21); the push rod (23) is slidably mounted on the vertical plate (21); the left end of the push rod (23) is connected to the output end of the servo electric cylinder (22); and the positioning plate (24) is fixedly mounted on the right end of the push rod (23).

6. A crayon head forming and cutting device as claimed in claim 5, characterized in that: A rubber pad is provided at the right end of the positioning plate (24).

7. A crayon head forming and cutting device as claimed in claim 3, characterized in that: The servo motor (12) is provided with a reducer.

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