Raw material cutting equipment and method for drill bit production

Abstract

The raw material cutting equipment for drill bit production comprises a raw material conveying mechanism, a raw material rod, a supporting fixing frame and a fixing support, the raw material conveying mechanism comprises a conveying support, an arc-shaped supporting groove is formed in the top end of the conveying support, and notches are evenly formed in the top end of the conveying support in a penetrating mode; a rubber roller is rotationally installed on the inner side of the notch, the top end of the rubber roller is flush with the bottom end of the arc-shaped supporting groove, a transmission gear is fixedly installed at one end of the rubber roller, and a transmission chain is in transmission connection with the outer side of the transmission gear. The arc-shaped supporting groove in the top end of the conveying support is matched with rotation of the rubber roller, a raw material rod can be stabilized in the middle position and smoothly conveyed, during cutting, the second electric push rod pushes the fixing block to press the raw material rod, it is guaranteed that raw materials do not shake or move in the cutting process, the cutting precision is further improved, and meanwhile operation safety is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of drill bit production, and in particular to a raw material cutting device and method for drill bit production. Background Art

[0002] In the drill bit production process, raw material cutting is an important preliminary process. Currently, traditional cutting equipment and methods have many defects. Common cutting equipment is cumbersome to adjust and control the cutting length, and the drill bit raw materials are manually loaded during cutting, which is prone to errors or accidents. Therefore, there is an urgent need for a raw material cutting device and method for drill bit production to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a raw material cutting device and method for drill bit production to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a raw material cutting device for drill bit production, comprising a raw material conveying mechanism, a raw material rod, a supporting and fixing frame and a fixing frame, the raw material conveying mechanism comprising a conveying frame, the top of the conveying frame is provided with an arc-shaped supporting groove, the top of the conveying frame is evenly penetrated with notches, a rubber roller is rotatably installed on the inner side of the notch, the top of the rubber roller is flush with the bottom end of the arc-shaped supporting groove, a transmission gear is fixedly installed on one end of the rubber roller, and a transmission chain is connected to the outer side of the transmission gear.

[0005] Preferably, one end of the bottom end of the conveying bracket is fixedly connected to a bottom support plate, and one end of the bottom support plate away from the conveying bracket is fixedly connected to a support frame, a first electric push rod is fixedly installed on the upper side of the support frame away from the conveying bracket, and a positioning baffle is fixedly installed on the telescopic end of the first electric push rod.

[0006] Preferably, two support rods are symmetrically fixedly connected to the middle part of the top end of the bottom support plate, and a discharging inclined plate is fixedly installed on the top end of the support rods, and two side baffles are symmetrically fixedly connected to the top end of the discharging inclined plate, and the top end of the discharging inclined plate is slidably connected to the finished raw material cutting product, and the finished raw material cutting product is located between the two side baffles, and a raw material support plate is fixedly installed on the top end of the discharging inclined plate close to the bottom support plate, and an arc-shaped groove which is the same as the arc-shaped support groove is provided on the top end of the raw material support plate.

[0007] Preferably, a first servo motor is fixedly mounted on one side of the conveying bracket close to the transmission gear and close to one end of the support rod, and a driving end of the first servo motor is fixedly mounted on one end of the rubber roller close to the support rod close to the transmission gear.

[0008] Preferably, a second electric push rod is fixedly installed in the middle of the top end of the support and fixing frame, a limiting slide groove is symmetrically provided inside the support and fixing frame, a PLC controller is fixedly installed on one side of the support and fixing frame, a fixed block is slidably connected inside the support and fixing frame, both sides of the fixed block are respectively fixedly connected with limiting sliders, the limiting sliders are slidably connected to the inner side of the limiting slide groove, a cutting groove is provided in the middle of the bottom end of the fixed block, an arc-shaped fixing groove is provided at the bottom end of the fixed block, and the telescopic end of the second electric push rod is fixedly installed in the middle of the top end of the fixed block.

[0009] Preferably, a third electric push rod is fixedly installed in the middle of the fixed bracket, a lifting part is slidably connected to the fixed bracket, a second servo motor is fixedly installed in the middle of the lifting part, and a cutting blade is fixedly installed at the driving end of the second servo motor.

[0010] Preferably, the PLC controller is electrically connected to the first electric push rod, the first servo motor, the second electric push rod, the third electric push rod and the second servo motor respectively.

[0011] Preferably, the two ends of the bottom end of the supporting fixed frame are respectively fixedly mounted on the top of the conveying bracket and the raw material support plate, the fixed bracket is fixedly mounted on the top of the bottom support plate, and the cutting blade is located between the conveying bracket and the raw material support plate, and the cutting blade is movably inserted into the inner side of the cutting groove.

[0012] A method for using a raw material cutting device for drill bit production is as follows:

[0013] S1. First, a control program is set through a PLC controller, the raw material rod is placed on the top of the conveying bracket, the position of the positioning baffle is set according to the required cutting length, the first electric push rod is controlled to extend through the PLC controller, and the telescopic end of the first electric push rod drives the positioning baffle to move to a predetermined position, and the first servo motor is controlled to start through the PLC controller, and the driving end of the first servo motor drives the rubber roller to rotate. Under the action of friction, the rotation of the rubber roller drives the raw material rod to move at the top of the conveying bracket close to the supporting fixed frame;

[0014] S2. When the raw material rod moves to one end close to the supporting fixed frame and is close to the side of the positioning baffle away from the first electric push rod, the cutting is started, and the second servo motor is controlled by the PLC controller to start and control the second electric push rod to extend. The telescopic end of the second electric push rod pushes the fixed block to slide downward on the inner side of the supporting fixed frame until the middle of the bottom end of the fixed block is close to the top of the raw material rod. The first servo motor is controlled to be turned off by the PLC controller, and the third electric push rod is controlled to extend at the same time, driving the cutting blade to move upward. The driving end of the second servo motor drives the cutting blade to rotate, and when the top end of the cutting blade moves to the bottom end of the raw material rod, the raw material rod is cut;

[0015] S3. When cutting is completed, the second electric push rod and the third electric push rod are controlled to retract through the PLC controller, driving the fixed block and the cutting blade to return to their initial positions. At this time, the end of the cut raw material product close to the positioning baffle loses support and falls downward to the top of the discharging inclined plate. The cut raw material product slides through the discharging inclined plate to the storage box outside the support frame. The first servo motor is controlled to start through the PLC controller. The driving end of the first servo motor drives the rubber roller to rotate, and continues to drive the raw material rod to move close to the supporting fixed frame until the end of the raw material rod close to the supporting fixed frame is close to the positioning baffle, and the cutting operation is continued. After the raw material rod is cut, a new raw material rod is placed on the top of the conveying bracket to continue cutting.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention can stabilize the raw material rod in the middle position and convey it smoothly by cooperating with the rotation of the rubber roller through the arc-shaped supporting groove at the top of the conveying bracket. During cutting, the second electric push rod pushes the fixed block to press the raw material rod, ensuring that the raw material does not shake or shift during the cutting process, further improving the cutting accuracy and ensuring the operation safety at the same time. The position of the positioning baffle can be flexibly set according to the required cutting length, and the movement of the positioning baffle can be accurately controlled by the first electric push rod. When the raw material rod moves to be close to the positioning baffle, it is cut, thereby ensuring the accuracy of the cutting length and meeting the production requirements of products of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the main body in the second state of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the raw material conveying mechanism in the present invention;

[0021] Figure 4 It is a structural schematic diagram of the raw material conveying mechanism A in the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the supporting and fixing frame in the present invention;

[0023] Figure 6 It is a schematic diagram of the structure of the fixing bracket part in the present invention.

[0024] In the figure: 1-raw material conveying mechanism, 2-raw material rod, 3-support fixing frame, 4-fixed frame, 5-conveyor frame, 6-arc-shaped support groove, 7-notch, 8-rubber roller, 9-bottom support plate, 10-support rod, 11-support frame, 12-first electric push rod, 13-positioning baffle, 14-discharging inclined plate, 15-side baffle, 16-raw material support plate, 17-transmission gear, 18-transmission chain, 19-first servo motor, 20-second electric push rod, 21-limiting slide groove, 22-PLC controller, 23-fixed block, 24-limiting slider, 25-cutting groove, 26-arc-shaped fixed groove, 27-third electric push rod, 28-lifting part, 29-second servo motor, 30-cutting blade, 31-raw material cutting finished product. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 3 and Figure 4 , an embodiment of the present invention: a raw material cutting device for drill bit production, comprising a raw material conveying mechanism 1, a raw material rod 2, a supporting and fixing frame 3 and a fixing frame 4, the raw material conveying mechanism 1 comprises a conveying frame 5, the top of the conveying frame 5 is provided with an arc-shaped supporting groove 6, the top of the conveying frame 5 is evenly penetrated with a notch 7, a rubber roller 8 is rotatably installed on the inner side of the notch 7, the top of the rubber roller 8 is flush with the bottom of the arc-shaped supporting groove 6, one end of the rubber roller 8 is fixedly installed with a transmission gear 17, the outer side of the transmission gear 17 is connected with a transmission chain 18, one end of the bottom end of the conveying frame 5 is fixedly connected with a bottom support plate 9, the end of the bottom support plate 9 away from the conveying frame 5 is fixedly connected with a support frame 11, a first electric push rod 12 is fixedly installed on the upper side of the support frame 11 away from the conveying frame 5, and a positioning baffle 13 is fixedly installed on the telescopic end of the first electric push rod 12, and the positioning baffle 13 is driven by the telescopic end of the first electric push rod 12 to move to a predetermined position to adjust the required cutting length.

[0027] Two supporting rods 10 are symmetrically fixedly connected to the middle of the top of the bottom supporting plate 9, and a discharging inclined plate 14 is fixedly installed on the top of the supporting rod 10. Two side baffles 15 are symmetrically fixedly connected to the top of the discharging inclined plate 14. The top of the discharging inclined plate 14 is slidably connected with a finished raw material cutting product 31, and the finished raw material cutting product 31 is located between the two side baffles 15. The finished raw material cutting product 31 formed after cutting the raw material rod 2 slides down through the top of the discharging inclined plate 14. A raw material supporting plate 16 is fixedly installed on the top of one end of the discharging inclined plate 14 close to the bottom supporting plate 9. The top of the raw material supporting plate 16 is provided with an arc groove which is the same as the arc supporting groove 6. A first servo motor 19 is fixedly installed on one side of the conveying bracket 5 close to the transmission gear 17 and one end close to the support rod 10. The driving end of the first servo motor 19 is fixedly installed on one end of a rubber roller 8 close to the support rod 10 close to the transmission gear 17. The driving end of the first servo motor 19 drives the rubber roller 8 to rotate, and the rotation of the rubber roller 8 drives the transmission gear 17 to rotate. The rotation of the transmission gear 17 drives the transmission chain 18 to rotate, and the transmission chain 18 drives the transmission gear 17 connected thereto to rotate, thereby driving all the rubber rollers 8 to rotate. Under the action of friction, the rotation of the rubber roller 8 drives the raw material rod 2 to move on the top of the conveying bracket 5.

[0028] See also Figure 5 and Figure 6 A second electric push rod 20 is fixedly installed at the middle of the top of the support frame 3, a limited slide groove 21 is symmetrically provided inside the support frame 3, a PLC controller 22 is fixedly installed on one side of the support frame 3, a fixed block 23 is slidably connected inside the support frame 3, and limited sliders 24 are fixedly connected on both sides of the fixed block 23. The limited slider 24 is slidably connected to the inner side of the limited slide groove 21, and the movement of the fixed block 23 is restricted by the limited slide groove 21 to avoid tilting when fixing the raw material rod 2. The bottom of the fixed block 23 A cutting groove 25 is provided in the middle of the end, and an arc-shaped fixing groove 26 is provided at the bottom end of the fixed block 23. The arc-shaped fixing groove 26 at the bottom end of the fixed block 23 is convenient for positioning and fixing the round raw material rod 2. The telescopic end of the second electric push rod 20 is fixedly installed in the middle of the top end of the fixed block 23, and a third electric push rod 27 is fixedly installed in the middle of the fixed bracket 4. A lifting part 28 is slidably connected to the fixed bracket 4, and a second servo motor 29 is fixedly installed in the middle of the lifting part 28. A cutting blade 30 is fixedly installed at the driving end of the second servo motor 29.

[0029] See also Figure 1 and Figure 2The PLC controller 22 is electrically connected to the first electric push rod 12, the first servo motor 19, the second electric push rod 20, the third electric push rod 27 and the second servo motor 29 respectively. The PLC controller 22 can conveniently control the equipment to start the cutting operation. The two ends of the bottom end of the supporting fixed frame 3 are respectively fixedly mounted on the top of the conveying bracket 5 and the raw material support plate 16. The fixed bracket 4 is fixedly mounted on the top of the bottom support plate 9, and the cutting blade 30 is located between the conveying bracket 5 and the raw material support plate 16. The cutting blade 30 is movably inserted into the inner side of the cutting groove 25. When the cutting blade 30 rises for cutting, it enters the inner side of the cutting groove 25 to avoid damage to the fixed block 23 and the cutting blade 30.

[0030] A method for using a raw material cutting device for drill bit production is as follows:

[0031] S1. First, the control program is set through the PLC controller 22, the raw material rod 2 is placed on the top of the conveying bracket 5, the position of the positioning baffle 13 is set according to the required cutting length, the first electric push rod 12 is controlled to extend through the PLC controller 22, and the telescopic end of the first electric push rod 12 drives the positioning baffle 13 to move to a predetermined position, and the first servo motor 19 is controlled to start through the PLC controller 22. The driving end of the first servo motor 19 drives the rubber roller 8 to rotate. Under the action of friction, the rotation of the rubber roller 8 drives the raw material rod 2 to move close to the supporting fixed frame 3 at the top of the conveying bracket 5;

[0032] S2, when the raw material rod 2 moves to one end close to the supporting fixed frame 3 and is close to the side of the positioning baffle 13 away from the first electric push rod 12, the cutting is started, and the second servo motor 29 is controlled by the PLC controller 22 to start and control the second electric push rod 20 to extend, and the telescopic end of the second electric push rod 20 pushes the fixed block 23 to slide downward on the inner side of the supporting fixed frame 3 until the middle of the bottom end of the fixed block 23 is close to the top of the raw material rod 2, and the first servo motor 19 is controlled to be turned off by the PLC controller 22, and the third electric push rod 27 is controlled to extend, driving the cutting blade 30 to move upward, and the driving end of the second servo motor 29 drives the cutting blade 30 to rotate, and when the top end of the cutting blade 30 moves to the bottom end of the raw material rod 2, the raw material rod 2 is cut;

[0033] S3. When cutting is completed, the second electric push rod 20 and the third electric push rod 27 are controlled to retract through the PLC controller 22, driving the fixed block 23 and the cutting blade 30 to return to their initial positions. At this time, the cut raw material finished product 31 close to the positioning baffle 13 loses support and falls downward to the top of the discharging inclined plate 14. The raw material cut product 31 slides through the discharging inclined plate 14 to the storage box outside the support frame 11. The first servo motor 19 is controlled to start through the PLC controller 22. The driving end of the first servo motor 19 drives the rubber roller 8 to rotate, and continues to drive the raw material rod 2 to move close to the supporting fixed frame 3 until the end of the raw material rod 2 close to the supporting fixed frame 3 is close to the positioning baffle 13, and the cutting operation is continued. After the raw material rod 2 is cut, a new raw material rod 2 is placed on the top of the conveying bracket 5 to continue cutting.

[0034] Working principle: During use, first set the control program through the PLC controller 22, then place the storage box on the side of the support frame 11 away from the bottom support plate 9, and place the raw material rod 2 on the top of the conveying bracket 5 through external force. Due to the arc-shaped support groove 6 opened at the top of the conveying bracket 5, the raw material rod 2 is located in the middle of the top of the conveying bracket 5, and then the position of the positioning baffle 13 is set according to the required cutting length, and the first electric push rod 12 is controlled to extend through the PLC controller 22. The telescopic end of the first electric push rod 12 drives the positioning baffle 13 to move to a predetermined position, and then the first servo motor 19 is started through the PLC controller 22. The driving end of the first servo motor 19 drives the rubber roller 8 to rotate, and the rotation of the rubber roller 8 drives the transmission gear 17 to rotate. The rotation of the transmission gear 17 drives the transmission chain 18 to transmit, and the transmission chain 18 drives the transmission gear 17 connected thereto to rotate, thereby driving all the rubber rollers 8 to rotate. Under the action of friction, the rotation of the rubber roller 8 drives the raw material rod 2 to move at the top of the conveying bracket 5 close to the supporting fixed frame 3.

[0035] When the raw material rod 2 moves to one end close to the supporting frame 3 and close to the side of the positioning baffle 13 away from the first electric push rod 12, cutting is started, and the second servo motor 29 is controlled by the PLC controller 22 to start and control the second electric push rod 20 to extend, and the telescopic end of the second electric push rod 20 pushes the fixed block 23 to slide downward on the inner side of the supporting frame 3 until the middle of the bottom end of the fixed block 23 is close to the top of the raw material rod 2, and then the first servo motor 19 is controlled to be turned off by the PLC controller 22 while controlling the third electric push rod 27 to extend, and the telescopic end of the third electric push rod 27 pushes the lifting part 28 to move upward, and the movement of the lifting part 28 drives the second servo motor 29 and the cutting blade 30 to move upward, and the second servo motor 29 The driving end drives the cutting blade 30 to rotate, and when the top end of the cutting blade 30 moves to the bottom end of the raw material rod 2, the raw material rod 2 is cut. When cutting is completed, the second electric push rod 20 and the third electric push rod 27 are controlled to retract through the PLC controller 22, and the telescopic end of the second electric push rod 20 drives the fixed block 23 to move upward and restore to the initial position, and the telescopic end of the third electric push rod 27 drives the lifting part 28 to move downward, and the movement of the lifting part 28 drives the cutting blade 30 to move downward to the initial position. At this time, the cut raw material finished product 31 close to the end of the positioning baffle 13 loses support and falls downward to the top of the discharge inclined plate 14, and the raw material cut product 31 slides through the discharge inclined plate 14 to the storage box outside the support frame 11.

[0036] Then, the first servo motor 19 is started by controlling the PLC controller 22. The driving end of the first servo motor 19 drives the rubber roller 8 to rotate, and continues to drive the raw material rod 2 to move close to the supporting frame 3, until the end of the raw material rod 2 close to the supporting frame 3 is close to the positioning baffle 13, and then the cutting operation is continued. After the raw material rod 2 is cut, a new raw material rod 2 is placed on the top of the conveying bracket 5 to continue cutting.

[0037] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that numerous changes, modifications, substitutions and alterations may be made to the embodiments without departing from the spirit and scope of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A material cutting device for drill bit production, comprising a material conveying mechanism (1), a material rod (2), a supporting frame (3) and a fixing bracket (4), characterized in that: The material conveying mechanism (1) comprises a conveying bracket (5), the top of the conveying bracket (5) is provided with an arc-shaped support groove (6), the top of the conveying bracket (5) is evenly penetrated with a notch (7), a rubber roller (8) is rotatably mounted inside the notch (7), the top of the rubber roller (8) is flush with the bottom of the arc-shaped support groove (6), a transmission gear (17) is fixedly mounted on one end of the rubber roller (8), and a transmission chain (18) is connected to the outer side of the transmission gear (17).

2. The raw material cutting equipment for drill bit production according to claim 1, characterized in that: One end of the bottom end of the conveying bracket (5) is fixedly connected to a bottom support plate (9), and one end of the bottom support plate (9) away from the conveying bracket (5) is fixedly connected to a support frame (11). A first electric push rod (12) is fixedly installed above a side of the support frame (11) away from the conveying bracket (5), and a positioning baffle (13) is fixedly installed at the telescopic end of the first electric push rod (12).

3. The raw material cutting equipment for drill bit production according to claim 2, characterized in that: Two support rods (10) are symmetrically fixedly connected to the middle of the top of the bottom support plate (9), and a discharge inclined plate (14) is fixedly installed on the top of the support rod (10). Two side baffles (15) are symmetrically fixedly connected to the top of the discharge inclined plate (14). A raw material cutting product (31) is slidably connected to the top of the discharge inclined plate (14), and the raw material cutting product (31) is located between the two side baffles (15). A raw material support plate (16) is fixedly installed on the top of one end of the discharge inclined plate (14) close to the bottom support plate (9), and an arc-shaped groove identical to the arc-shaped support groove (6) is provided on the top of the raw material support plate (16).

4. The raw material cutting equipment for drill bit production according to claim 3, characterized in that: A first servo motor (19) is fixedly mounted on one side of the conveying bracket (5) close to the transmission gear (17) and close to one end of the support rod (10); a driving end of the first servo motor (19) is fixedly mounted on one end of the rubber roller (8) close to the support rod (10) and close to the transmission gear (17).

5. The raw material cutting equipment for drill bit production according to claim 1, characterized in that: A second electric push rod (20) is fixedly mounted in the middle of the top end of the support fixing frame (3); a limit slide groove (21) is symmetrically provided inside the support fixing frame (3); a PLC controller (22) is fixedly mounted on one side of the support fixing frame (3); a fixed block (23) is slidably connected inside the support fixing frame (3); both sides of the fixed block (23) are respectively fixedly connected to limit slide blocks (24); the limit slide blocks (24) are slidably connected to the inner side of the limit slide groove (21); a cutting groove (25) is provided in the middle of the bottom end of the fixed block (23); an arc-shaped fixed groove (26) is provided at the bottom end of the fixed block (23); and the telescopic end of the second electric push rod (20) is fixedly mounted in the middle of the top end of the fixed block (23).

6. The raw material cutting equipment for drill bit production according to claim 1, characterized in that: A third electric push rod (27) is fixedly mounted in the middle of the fixed bracket (4), a lifting part (28) is slidably connected to the fixed bracket (4), a second servo motor (29) is fixedly mounted in the middle of the lifting part (28), and a cutting blade (30) is fixedly mounted on the driving end of the second servo motor (29).

7. A raw material cutting device for drill bit production according to claim 4, 5 or 6, characterized in that: The PLC controller (22) is respectively electrically connected to the first electric push rod (12), the first servo motor (19), the second electric push rod (20), the third electric push rod (27) and the second servo motor (29).

8. The raw material cutting equipment for drill bit production according to claim 7, characterized in that: The two ends of the bottom end of the supporting fixed frame (3) are respectively fixedly mounted on the top of the conveying support (5) and the raw material support plate (16), the fixed support (4) is fixedly mounted on the top of the bottom support plate (9), and the cutting blade (30) is located between the conveying support (5) and the raw material support plate (16), and the cutting blade (30) is movably inserted into the inner side of the cutting groove (25).

9. A method for using a raw material cutting device for drill bit production according to any one of claims 1 to 8, characterized in that: The details are as follows: S1. First, a control program is set through a PLC controller (22), a raw material rod (2) is placed on the top of a conveying bracket (5), a position of a positioning baffle (13) is set according to a required cutting length, a first electric push rod (12) is controlled to extend through the PLC controller (22), and the telescopic end of the first electric push rod (12) drives the positioning baffle (13) to move to a predetermined position, and a first servo motor (19) is controlled to start through the PLC controller (22), and a driving end of the first servo motor (19) drives a rubber roller (8) to rotate, and under the action of friction, the rotation of the rubber roller (8) drives the raw material rod (2) to move at the top of the conveying bracket (5) close to the supporting fixed frame (3); S2, when the raw material rod (2) moves to one end close to the supporting fixed frame (3) and close to the positioning baffle (13) and away from the first electric push rod (12), the cutting is started, and the second servo motor (29) is controlled by the PLC controller (22) to start and control the second electric push rod (20) to extend, and the telescopic end of the second electric push rod (20) pushes the fixed block (23) to slide downward on the inner side of the supporting fixed frame (3) until the middle of the bottom end of the fixed block (23) is close to the top of the raw material rod (2), and the first servo motor (19) is controlled by the PLC controller (22) to be turned off and the third electric push rod (27) is controlled to extend, driving the cutting blade (30) to move upward, and the driving end of the second servo motor (29) drives the cutting blade (30) to rotate, and when the top end of the cutting blade (30) moves to the bottom end of the raw material rod (2), the raw material rod (2) is cut; S3. When cutting is completed, the PLC controller (22) controls the second electric push rod (20) and the third electric push rod (27) to retract, driving the fixed block (23) and the cutting blade (30) to return to their initial positions. At this time, the cut raw material finished product (31) close to the positioning baffle (13) loses support and falls downward to the top of the discharge inclined plate (14). The cut raw material finished product (31) slides through the discharge inclined plate (14) to the storage box outside the support frame (11). The PLC controller (22) controls the first servo motor (19) to start. The driving end of the first servo motor (19) drives the rubber roller (8) to rotate, and continues to drive the raw material rod (2) to move close to the support fixed frame (3) until the end of the raw material rod (2) close to the support fixed frame (3) is close to the positioning baffle (13), and the cutting operation is continued. After the raw material rod (2) is cut, a new raw material rod (2) is placed on the top of the conveying bracket (5) to continue cutting.

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