CN212287789U

CN212287789U - Short device of cutting of SMC production unit fibre

Info

Publication number: CN212287789U
Application number: CN202020615436.2U
Authority: CN
Inventors: 钱卫强
Original assignee: Changzhou Rixin Molding Technology Co ltd
Current assignee: Changzhou Rixin Molding Technology Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-01-05
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a short device of cutting of SMC production unit fibre, including the transmission workstation, the one end fixed mounting of transmission workstation has the stationary knife rest, the perpendicular fixedly connected with slide bar of one end of stationary knife rest, the other end of stationary knife rest rotates perpendicularly and is connected with ball screw, the other end of slide bar and ball screw all is connected with the bracing piece of fixing on the transmission workstation, ball screw one end bracing piece's outside fixed mounting has servo motor, the knife rest has been cup jointed on slide bar and the ball screw, the stationary knife rest has telescopic cylinder with the equal fixed mounting in bottom both ends of moving the knife rest, telescopic cylinder's the equal fixedly connected with cutter in bottom, the stationary knife rest all is connected with the compression roller through down the down the down bracing piece with the outside both ends of moving the knife rest, control switch is installed to. The utility model discloses but cutting length is adjusted to the higher freedom of precision, and the firm of raw materials when the cutting is guaranteed to the compression roller of both sides during the cutting.

Description

Short device of cutting of SMC production unit fibre

Technical Field

The utility model relates to a SMC produces unit technical field, particularly, relates to a short device of cutting of SMC production unit fibre.

Background

In order to meet the increasingly high requirements of the wide application field on the sheet, the rapid development of the sheet molding compound technology is promoted. Sheet molding compounds generally require good flow and high strength properties. The good fluidity means that the fibers can be reasonably matched on the basis of ensuring certain thickening viscosity, and the shorter the fiber is, the more the fiber is easy to flow; the higher the strength, the longer the fiber length is, the higher the strength is, the higher the viscosity is, and how to solve this contradiction becomes the urgent need. Wherein a fiber chopping device is required to cut the raw material.

The conventional fiber chopping device generally only adopts a group of shredding devices to cut raw materials, the cutting length is not adjustable, and chopped fibers are single in the production process of sheets, so that the matching of multi-size chopped fibers cannot be realized; in addition, in the short cutting process, the existing device has no link of compressing tightly raw materials specially, and the raw materials can generate folds or skew due to the shaking of the unit, so that the cutting size is inaccurate, and the quality of the sheet is influenced.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a short device of SMC production unit fibre to solve the problem that the existing short device of fibre proposed in the above background art generally only adopts a group of shredding device to cut the raw material, the cutting length is not adjustable, the short fibre is single in the sheet production process, therefore the collocation of multi-size short fibre can not be realized; in addition, in the short cutting process, the existing device has no link of compressing tightly raw materials specially, and the raw materials can generate folds or skew due to the shaking of the unit, so that the cutting size is not accurate, and the quality of the sheet is affected.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a short device of cutting of SMC production unit fibre, includes the transmission workstation, the one end fixed mounting of transmission workstation has the stationary knife rest, the perpendicular fixedly connected with slide bar of one end of stationary knife rest, the other end of stationary knife rest rotates perpendicularly and is connected with ball screw, the other end of slide bar and ball screw all is connected with the bracing piece of fixing on the transmission workstation, the outside fixed mounting of ball screw one end bracing piece has servo motor, the knife rest has been cup jointed on slide bar and the ball screw, the stationary knife rest has telescopic cylinder with the equal fixed mounting in bottom both ends of moving the knife rest, telescopic cylinder's the equal fixedly connected with cutter in bottom, the stationary knife rest has down the down the equal fixed mounting in outside both ends of knife rest, one side fixed mounting of transmission workstation has control switch.

Further, the telescopic cylinder is communicated with an external air path.

Furthermore, the control switch is electrically connected with the telescopic cylinder and the servo motor to form a complete control loop and is electrically connected with an external power supply.

Furthermore, an output shaft of the servo motor is fixedly connected with a ball screw, and the ball screw rotates to drive the movable knife rest to move back and forth on the ball screw and the slide rod.

Furthermore, the slide bar is provided with scales.

Furthermore, a fixed shaft is arranged at the middle shaft of the compression roller.

Furthermore, a sliding groove is formed in the joint of the lower inclined rod and the pressing roller, the fixed shaft is inserted into the sliding groove, and a spring is arranged at the top of the sliding groove.

Furthermore, the cutting edges of the cutters below the fixed cutter frame and the movable cutter frame are arranged on the inner side.

The utility model discloses following beneficial effect has:

(1) the utility model is provided with the fixed knife with fixed position and the movable knife which moves back and forth under the combined action of the servo motor and the ball screw, thereby being convenient for adjusting the length of the chopped fiber, and having simple and effective structure and simple and convenient operation; in addition, the sliding rod is provided with scales, so that the cutting length can be accurately adjusted.

(2) The utility model discloses the stationary knife rest all is connected with the compression roller through down the down tube with the outside of moving the knife rest, plays to compress tightly fixed effect to former material when the cutting, avoids the raw materials to produce the fold or crooked problem appearance that leads to the quality of cutting the inaccurate of size, influence sheet because of rocking of unit.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a fiber chopping device of an SMC production unit according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal connection structure of one end of a lower inclined rod and a compression roller of a fiber chopping device of an SMC production unit according to an embodiment of the present invention.

Reference numerals:

1. a transfer table; 2. a fixed tool rest; 3. a slide bar; 4. a ball screw; 5. a support bar; 6. a servo motor; 7. a movable knife rest; 8. a telescopic cylinder; 9. a cutter; 10. a lower diagonal rod; 11. a compression roller; 12. a control switch; 13. calibration; 14. a fixed shaft; 15. a chute; 16. a spring.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

the first embodiment is as follows:

referring to fig. 1, a short fiber cutting device of an SMC production unit according to an embodiment of the present invention includes a transmission workbench 1, a stationary knife holder 2 is fixedly installed at one end of the transmission workbench 1, a slide bar 3 is vertically and fixedly connected to one end of the stationary knife holder 2, a ball screw 4 is vertically and rotatably connected to the other end of the stationary knife holder 2, support bars 5 fixed to the transmission workbench 1 are connected to the other ends of the slide bar 3 and the ball screw 4, a servo motor 6 is fixedly installed at the outer side of the support bar 5 at one end of the ball screw 4, a movable knife holder 7 is sleeved on the slide bar 3 and the ball screw 4, telescopic cylinders 8 are fixedly installed at both ends of the bottoms of the stationary knife holder 2 and the movable knife holder 7, cutters 9 are fixedly connected to the bottoms of the telescopic cylinders 8, lower oblique rods 10 are fixedly installed at both ends of the outer sides of the stationary knife holder, the other end of the lower inclined rod 10 is provided with a press roller 11, and one side of the transmission workbench 1 is fixedly provided with a control switch 12.

Through the above scheme of the utility model, the cutter 9 on the fixed cutter frame 2 is matched with the cutter 9 on the movable cutter frame 7 which can move back and forth, so as to realize the adjustment of the length of the chopped fiber, the structure is simple and effective, the operation is simple and convenient, and the telescopic cylinder 8 can stretch to drive the cutter 9 to move up and down to complete the cutting action; the compression roller 11 that the outside of stationary knife rest 2 and movable knife rest 7 is connected through down the down-tilting rod 10 plays to compress tightly fixed effect to the former material when the cutting, avoids the former material to produce the fold or crooked problem appearance that leads to cutting dimension inaccurate, influence the quality of sheet because of rocking of unit.

Example two:

specifically, the telescopic cylinder 8 is communicated with an external air passage; the control switch 12 is electrically connected with the telescopic cylinder 8 and the servo motor 6 to form a complete control loop and is electrically connected with an external power supply; an output shaft of the servo motor 6 is fixedly connected with the ball screw 4, and the ball screw 4 rotates to drive the movable knife rest 7 to move back and forth on the ball screw 4 and the slide rod 3.

Through the technical scheme of the utility model, the control switch 12 can be used for controlling the expansion of the telescopic cylinder 8 so as to realize the cutting action; the control switch 12 can also control the positive and negative rotation of the servo motor 6, and the moving knife rest 7 is driven to move back and forth on the ball screw 4 and the slide bar 3 by the rotation of the ball screw 4, so as to achieve the adjustment of the cutting length.

Example three:

referring to fig. 2, a fixed shaft 14 is disposed at a central axis of the compression roller 11; a sliding groove 15 is formed at the joint of the lower inclined rod 10 and the pressing roller 11, the fixed shaft 14 is inserted into the sliding groove 15, and a spring 16 is arranged at the top in the sliding groove 15; the blades of the cutters 9 below the fixed cutter frame 2 and the movable cutter frame 7 are arranged on the inner sides; the slide bar 3 is provided with a scale 13.

Through the scheme of the utility model, the fixing shaft 14 arranged at the middle shaft of the compression roller 11 is inserted into the sliding groove 15 arranged at the top end of the lower inclined rod 10, and the spring 16 arranged at the top part in the sliding groove 15 tightly presses the fixing shaft 14 so as to realize the purpose of fixing the height of the compression roller 11; because of the flexibility of the spring 16, the fixed shaft 14 can slide up and down in the chute 15, so that the compression roller 11 automatically adjusts the compression of the raw materials with various thicknesses; the distance between the inner side blades of the fixed knife rest 2 and the knife rest 7 below the cutter 9 is the cutting length, and the accurate cutting length adjustment is realized by matching the slide bar 3 with the scales 13.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

In practical application, an external power supply of the fiber chopping device is switched on, the forward and reverse rotation of the servo motor 6 is controlled through the control switch 12, the servo motor 6 drives the ball screw 4 connected with the output shaft to rotate, and the movable tool rest 7 is driven to move back and forth on the ball screw 4 and the slide rod 3 so as to achieve the adjustment of the required cutting length; in addition, the distance between the blades of the fixed cutter frame 2 and the movable cutter frame 7 below the cutter 9 arranged on the inner side is the cutting length, and the accurate cutting length adjustment can be realized by matching with the slide bar 3 provided with the scales 13; the telescopic cylinder 8 is controlled by the control switch 12 to extend downwards to drive the cutter 9 to complete cutting action; the compression roller 11 that the outside of stationary knife rest 2 and movable knife rest 7 is connected through down the down-tilting rod 10 plays to compress tightly fixed effect to the former material when the cutting, avoids the raw materials to produce the fold or crooked inaccurate that leads to cutting size because of rocking of unit.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a short device of cutting of SMC production unit fibre, includes transmission workstation (1), its characterized in that: one end of the transmission workbench (1) is fixedly provided with a fixed knife rest (2), one end of the fixed knife rest (2) is vertically and fixedly connected with a slide rod (3), the other end of the fixed knife rest (2) is vertically and rotatably connected with a ball screw (4), the other ends of the slide rod (3) and the ball screw (4) are respectively connected with a support rod (5) fixed on the transmission workbench (1), the outer side of the support rod (5) at one end of the ball screw (4) is fixedly provided with a servo motor (6), the slide rod (3) and the ball screw (4) are sleeved with a movable knife rest (7), two ends of the bottoms of the fixed knife rest (2) and the movable knife rest (7) are respectively and fixedly provided with a telescopic cylinder (8), the bottoms of the telescopic cylinders (8) are respectively and fixedly connected with a cutter (9), two ends of the outer sides of the fixed knife rest (2) and the movable knife rest (7), the other end of the lower inclined rod (10) is provided with a pressing roller (11), and one side of the transmission workbench (1) is fixedly provided with a control switch (12).

2. An SMC production unit fiber chopping device according to claim 1, characterized in that: the telescopic cylinder (8) is communicated with an external air path.

3. An SMC production unit fiber chopping device according to claim 1, characterized in that: the control switch (12) is electrically connected with the telescopic cylinder (8) and the servo motor (6) to form a complete control loop and is electrically connected with an external power supply.

4. An SMC production unit fiber chopping device according to claim 1, characterized in that: an output shaft of the servo motor (6) is fixedly connected with the ball screw (4), and the ball screw (4) rotates to drive the movable knife rest (7) to move back and forth on the ball screw (4) and the slide rod (3).

5. An SMC production unit fiber chopping device according to claim 1, characterized in that: the sliding rod (3) is provided with scales (13).

6. An SMC production unit fiber chopping device according to claim 1, characterized in that: and a fixed shaft (14) is arranged at the middle shaft of the compression roller (11).

7. An SMC production unit fiber chopping device according to claim 6, characterized in that: a sliding groove (15) is formed in the joint of the lower inclined rod (10) and the pressing roller (11), the fixed shaft (14) is inserted into the sliding groove (15), and a spring (16) is arranged at the top in the sliding groove (15).

8. An SMC production unit fiber chopping device according to claim 1, characterized in that: the blades of the cutters (9) below the fixed cutter frame (2) and the movable cutter frame (7) are arranged on the inner sides.