Clamping and cutting mechanism

Abstract

The utility model relates to a clamping and cutting mechanism, in particular to the technical field of plastic pen cutting mechanisms. Comprising a plastic pen cutting-off base bottom plate, a sliding rail, a sliding block, a mounting plate, a stepping eccentric wheel assembly, a first driving motor, a movable connecting rod, a first support, a rotating shaft, a high-speed saw blade, a belt, a second driving motor, a second support, a pressing mechanism and a boss plate. The problem that a common plastic pen cutting-off mechanism cannot meet the requirements of fixed cutting-off length and smooth cutting surface is solved; and the phenomenon that in the cutting process of the plastic pen, the cutting process is not stable is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pen cutting mechanisms, in particular to a clamping and cutting mechanism. Background Art

[0002] Plastic pencils have a wide range of applications, diverse shapes, and affordable prices, and are widely circulated in the market. The current production process of plastic pencils is usually to directly form the pen body and the lead core at one time by an extruder. The extruded pen body is a continuous and slender pen strip, and the existing equipment is mostly a rotating disc that rotates and clamps off. This method cannot meet the requirements of cutting to a fixed length and a smooth cut surface, and it also requires another double-sided cutting process, which increases unnecessary material circulation and labor costs. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] The utility model provides a clamping and cutting mechanism, which overcomes the problem that ordinary plastic pen cutting mechanisms cannot meet the requirements of cutting to a fixed length and having a smooth cut surface; and the phenomenon that the cutting process of the plastic pen is not stable during the cutting process.

[0005] (2) Technical solution

[0006] In order to solve the above technical problems, the utility model provides a clamping and cutting mechanism, including a plastic pen cutting seat bottom plate, a slide rail, a slider, a mounting plate, a stepping eccentric wheel assembly, a first drive motor, a mobile connecting rod, a first bracket, a rotating shaft, a high-speed saw blade, a belt, a second drive motor, a second bracket, a clamping mechanism, and a boss plate;

[0007] The bottom plate of the plastic pen cutting seat is provided with two symmetrical slide rails; the slide rail is fixedly connected to the slider; the slider is fixedly connected to the mounting plate; the mounting plate is provided with the stepping eccentric wheel assembly; the upper end of the mounting plate is provided with the first driving motor; the output shaft of the first driving motor is connected to the eccentric wheel inside the stepping eccentric wheel assembly; the other end of the eccentric wheel is connected to the movable connecting rod; the movable connecting rod is fixedly connected to the bottom plate of the plastic pen cutting seat; the front end of the mounting plate is fixedly connected to the first bracket; the rotating shaft is rotatably mounted on the first bracket; the high-speed saw blades are provided at both ends of the rotating shaft; one end of the rotating shaft is connected to the second driving motor through a belt; the second driving motor is fixedly connected to the rear position of the mounting plate; the bottom plate of the plastic pen cutting seat is provided with the second bracket located at the front end position of the first bracket; the second bracket is provided with the clamping mechanism; the first bracket is fixedly connected to the boss plate located above the first bracket.

[0008] Preferably, the mounting plate is in the shape of a "convex" with a small front end and a large rear end.

[0009] Preferably, the clamping mechanism comprises a first fixed block, a second fixed block, a long shaft, a spring, a pen-pressing rotating shaft, a bearing, and a clamping block;

[0010] A pair of symmetrical first fixing blocks are provided above the second bracket; the second fixing block is clamped on the first fixing block; the long axis fixedly connected to the surface of the first fixing block is passed through the second fixing block; the spring is provided at the position above the long axis located above the second fixing block; the pen pressing rotating shaft is rotatably mounted on the first fixing block; the bearing is installed on the inner opposite side of the tail of the pen pressing rotating shaft, and a clamping block is provided on the bottom of the outer opposite side of the head of the pen pressing rotating shaft; the top of the outer opposite side of the head of the pen pressing rotating shaft abuts against the bottom of the second fixing block in the working state.

[0011] Preferably, the second bracket is provided with a groove for the pencil to pass through, and the pen pressing rotation axis is located above the groove.

[0012] Preferably, the boss plate is provided with a protruding portion and a non-protruding portion.

[0013] (3) Beneficial effects

[0014] The utility model provides a clamping and cutting mechanism, which overcomes the problem that the ordinary plastic pen cutting mechanism cannot meet the requirements of cutting to a fixed length and having a smooth cut surface; and the phenomenon that the cutting process of the plastic pen is not stable during the cutting process.

[0015] 1. The utility model is provided with a high-speed motor to drive two saw blades to rotate at high speed, thereby realizing automatic clamping and fixing when advancing and cutting materials.

[0016] 2. The utility model can meet the requirement of cutting to a fixed length, so that the length of the pen shaft after cutting is consistent and accurate; and the cut surface is smooth and does not need to be processed again, thus saving material consumption and labor costs.

[0017] 3. The utility model provides a clamping mechanism to reduce the shaking of the pencil when cutting, making the cut end surface smoother and the cutting work more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A clamping and cutting mechanism proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first bracket connection in the utility model;

[0020] Figure 3 It is a structural schematic diagram of the pressing mechanism in the utility model;

[0021] Figure 4For the utility model Figure 1 Schematic diagram of the rear side;

[0022] Figure 5 It is a side view of the raised platform plate in the utility model;

[0023] Figure markings: 1-plastic pen cutting seat base plate, 2-slide rail, 3-slider, 4-mounting plate, 5-stepping eccentric wheel assembly, 6-first drive motor, 7-movable connecting rod, 8-first bracket, 9-rotating shaft, 10-high-speed saw blade, 11-belt, 12-second drive motor, 13-second bracket, 14-clamping mechanism, 141-first fixed block, 142-second fixed block, 143-long axis, 144-spring, 145-pen pressing rotating shaft, 146-bearing, 147-clamping block, 15-boss plate, 151-protrusion, 152-non-protrusion, 16-groove. DETAILED DESCRIPTION

[0024] The utility model is further described in conjunction with the accompanying drawings and embodiments.

[0025] like Figures 1 to 5 As shown, the clamping and cutting mechanism described in the utility model includes a plastic pen cutting seat bottom plate 1, a slide rail 2, a slider 3, a mounting plate 4, a stepping eccentric wheel assembly 5, a first drive motor 6, a movable connecting rod 7, a first bracket 8, a rotating shaft 9, a high-speed saw blade 10, a belt 11, a second drive motor 12, a second bracket 13, a clamping mechanism 14, and a boss plate 15;

[0026] The bottom plate 1 of the plastic pen cutting seat is provided with two symmetrical slide rails 2; the slide rails 2 are fixedly connected with the slider 3; the slider 3 is fixedly connected with the mounting plate 4; the mounting plate 4 is provided with the stepping eccentric wheel assembly 5; the upper end of the mounting plate 4 is provided with the first driving motor 6; the output shaft of the first driving motor 6 is connected with the eccentric wheel inside the stepping eccentric wheel assembly 5; the other end of the eccentric wheel is connected with the moving connecting rod 7; the moving connecting rod 7 is fixedly connected to the bottom plate 1 of the plastic pen cutting seat; the front end of the mounting plate 4 is fixedly connected The first bracket 8 is provided; the rotating shaft 9 is rotatably mounted on the first bracket 8; the high-speed saw blades 10 are provided at both ends of the rotating shaft 9; one end of the rotating shaft 9 is connected to the second driving motor 12 through a belt 11; the second driving motor 12 is fixedly connected at the rear position of the mounting plate 4; the second bracket 13 is provided at the front end position of the first bracket 8 on the bottom plate 1 of the plastic pen cutting seat; the clamping mechanism 14 is provided on the second bracket 13; the boss plate 15 located above the first bracket 8 is fixedly connected to the first bracket 8. The utility model realizes automatic clamping and fixing when advancing and cutting materials by setting a high-speed motor to drive two high-speed saw blades 10 to rotate.

[0027] The mounting plate 4 is a "convex" shape with a small front end and a large rear end. The recessed portion of the mounting plate 4 is used for the high-speed saw blade 10 to rotate and cut.

[0028] The clamping mechanism 14 includes a first fixing block 141, a second fixing block 142, a long shaft 143, a spring 144, a pen-pressing rotating shaft 145, a bearing 146, and a clamping block 147;

[0029] A pair of symmetrical first fixing blocks 141 are arranged above the second bracket 13; the second fixing block 142 is clamped on the first fixing block 141; the long axis 143 fixedly connected to the surface of the first fixing block 141 is passed through the second fixing block 142; the long axis 143 is provided with the spring 144 at the position above the second fixing block 142; the pen pressing rotating shaft 145 is rotatably mounted on the first fixing block 141; the bearing 146 is installed on the inner opposite side of the tail of the pen pressing rotating shaft 145, and a clamping block 147 is arranged on the outer opposite bottom of the head of the pen pressing rotating shaft 145; the top of the outer opposite top of the head of the pen pressing rotating shaft 145 abuts against the bottom of the second fixing block 142 in the working state. By providing the clamping mechanism 14, the pencil can reduce the shaking phenomenon when cutting, making the cut end surface smoother and the cutting work more stable.

[0030] The second bracket 13 is provided with a groove 16 for a pencil to pass through, and the pen pressing rotating shaft 145 is located above the groove 16 .

[0031] The boss plate 15 is provided with a protruding portion 151 and a non-protruding portion 152 .

[0032] Working principle: Turn on the first drive motor 6 to make the eccentric wheel rotate one circle, thereby driving the movable connecting rod 7 to make a reciprocating linear motion, thereby driving the mounting plate 4 to move forward and backward on the slide rail 2 to complete the cutting action; during the cutting process, turn on the second drive motor 12 to make the high-speed saw blade 10 rotate, thereby cutting the pencil roller material line conveyed on the groove 16;

[0033] During cutting, the plastic pen needs to be fixed on the groove 16 of the track, so a boss plate 15 is provided, and bearings 146 are installed on opposite sides of the tails of the two pen pressing rotating shafts 145 , and the bearings 146 contact the boss plate 15 . When the high-speed saw blade 10 is not cutting, the bearing 146 installed on the opposite side of the tail of the pen pressing rotating shaft 145 is in the protrusion 151 of the boss plate 15, and the outer side of the pen pressing rotating shaft 145 is pried up, and the plastic pen can move freely in the axial direction; when the high-speed saw blade 10 is cutting, the bearing 146 installed on the opposite side of the tail of the pen pressing rotating shaft 145 is separated from the protrusion 151 of the boss plate 15 and comes to the non-protrusion 152, thereby releasing the space above the inner axis of the pen pressing rotating shaft 145, and the pressing block 147 installed on the opposite side of the head of the pen pressing rotating shaft 145 compacts and fixes the plastic pen; at the same time, the spring 144 on the second fixing block 142 pops up downward, so that the head end of the pen pressing rotating shaft 145 at the bottom of the second fixing block 142 reduces the shaking phenomenon of the plastic pen during cutting, making the cutting end surface smoother. The contents not described in detail in this specification belong to the prior art known to professionals in this field.

[0034] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but the utility model is not limited to these embodiments. It should be pointed out that for ordinary technicians in this field. Under the premise of not departing from the purpose of the utility model, any improvement made shall fall within the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A clamping and cutting mechanism, It is characterized in that The invention comprises a plastic pen cutting seat bottom plate (1), a slide rail (2), a slider (3), a mounting plate (4), a stepping eccentric wheel assembly (5), a first driving motor (6), a movable connecting rod (7), a first bracket (8), a rotating shaft (9), a high-speed saw blade (10), a belt (11), a second driving motor (12), a second bracket (13), a clamping mechanism (14), and a boss plate (15); The bottom plate (1) of the plastic pen cutting seat is provided with two sections of symmetrical slide rails (2); the slide rails (2) are fixedly connected to the sliders (3); the sliders (3) are fixedly connected to the mounting plate (4); the mounting plate (4) is provided with the stepping eccentric wheel assembly (5); the upper end of the mounting plate (4) is provided with the first driving motor (6); the output shaft of the first driving motor (6) is connected to the eccentric wheel inside the stepping eccentric wheel assembly (5); the other end of the eccentric wheel is connected to the moving connecting rod (7); the moving connecting rod (7) is fixedly connected to the bottom plate (1) of the plastic pen cutting seat; the front end of the mounting plate (4) is fixedly connected to the A first bracket (8); the rotating shaft (9) is rotatably mounted on the first bracket (8); the high-speed saw blades (10) are arranged at both ends of the rotating shaft (9); one end of the rotating shaft (9) is connected to the second driving motor (12) via a belt (11); the second driving motor (12) is fixedly connected to the rear position of the mounting plate (4); the second bracket (13) is arranged on the bottom plate (1) of the plastic pen cutting seat at the front end position of the first bracket (8); the clamping mechanism (14) is arranged on the second bracket (13); the boss plate (15) located above the first bracket (8) is fixedly connected to the first bracket (8).

2. A clamping and cutting mechanism according to claim 1, It is characterized in that The mounting plate (4) is in the shape of a "convex letter" with a small front end and a large rear end.

3. A clamping and cutting mechanism according to claim 1, It is characterized in that The pressing mechanism (14) comprises a first fixed block (141), a second fixed block (142), a long shaft (143), a spring (144), a pen-pressing rotating shaft (145), a bearing (146), and a pressing block (147); A pair of symmetrical first fixing blocks (141) are provided above the second bracket (13); the second fixing block (142) is clamped on the first fixing block (141); the second fixing block (142) is provided with the long axis (143) fixedly connected to the surface of the first fixing block (141); the long axis (143) is provided with the spring (144) at a position above the second fixing block (142); the pen-pressing rotating shaft (145) is rotatably mounted on the first fixing block (141); the bearing (146) is mounted on the inner opposite side of the tail of the pen-pressing rotating shaft (145), and a clamping block (147) is provided on the outer opposite bottom of the head of the pen-pressing rotating shaft (145); the outer opposite top of the head of the pen-pressing rotating shaft (145) abuts against the bottom of the second fixing block (142) in the working state.

4. A clamping and cutting mechanism according to claim 3, It is characterized in that The second bracket (13) is provided with a groove (16) for a pencil to pass through, and the pen pressing rotating shaft (145) is located above the groove (16).

5. A clamping and cutting mechanism according to claim 1, It is characterized in that The boss plate (15) is provided with a protruding portion (151) and a non-protruding portion (152).

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