Automatic fine adjustment extrusion die head of servo push rod motor swing rod

Abstract

The invention provides a servo push rod motor swing rod automatic fine adjustment extrusion die head which comprises an upper die, a lower die, an extrusion channel, a deformation groove, a die lip and a pull groove, a series of electric fine adjustment mechanisms are evenly arranged on the top face of the upper die in the breadth direction, and each electric fine adjustment mechanism comprises a connecting frame and a servo push rod motor. The servo push rod motor is vertically connected with a fine adjustment swing rod through a connecting block, the front end of the fine adjustment swing rod is hinged between the left fine adjustment fixing block and the right fine adjustment fixing block, and the bottom face of the front end of the fine adjustment swing rod extends downwards to form a clamping column. A clamping groove is formed in the top face of the rear portion of the push-pull rod, the clamping column is clamped into the clamping groove to be positioned, the front end of the push-pull rod is located in the deformation groove and connected with a fine adjustment drag hook, and the front end of the fine adjustment drag hook is connected into the pull groove. According to the lever principle of the fine adjustment swing rod, acting force is multiplied to push or pull the pull rod to adjust the lip gap.

Description

Technical Field

[0001] The invention relates to the technical field of extrusion die heads, in particular to an extrusion die head with automatic fine adjustment of a servo push rod motor swing rod. Background Art

[0002] Extrusion dies are usually used for continuous extrusion to produce thin sheet products. Thermally driven bolts have been used to achieve automatic adjustment of the lip. Although this adjustment structure is usually effective, thermal bolts are greatly affected by external factors, so thickness uniformity and consistency are sometimes difficult to achieve. Thermal bolts usually need to be pre-adjusted manually, so the process is not fully automated and consistency is difficult to achieve. At present, electric cylinder automatic fine-tuning structures have also appeared to achieve automation, but the electric cylinder automatic fine-tuning structure die directly applies the push and pull force of the electric cylinder to the die lip, which requires a large push and pull force, and the requirements for the electric cylinder are extremely high. Ordinary electric cylinders cannot meet the requirements, making the cost very high. Summary of the invention

[0003] In view of the above problems, the present invention aims to provide a servo push rod motor rocker arm automatic fine-tuning extrusion die head, which has a novel structure and applies the linear motion of the servo push rod motor to the rocker arm, and amplifies the force by multiples through the lever principle of the rocker arm to push or pull the push-pull rod to adjust the lip gap.

[0004] The technical solution of the present invention is a servo push rod motor swing arm automatic fine-tuning extrusion die head, comprising an upper die and a lower die, an extrusion channel is formed between the upper die and the lower die, a deformation groove is arranged on the top surface of the front end of the upper die along the width direction, a die lip is formed at the upper die position at the front end of the deformation groove, a drawing groove is arranged on the top surface of the die lip along the width direction, a series of electric fine-tuning mechanisms are evenly arranged on the top surface of the upper die along the width direction, the electric fine-tuning mechanism comprises a connecting frame connected to the top surface of the rear part of the upper die, a servo push rod motor is arranged on the connecting frame, and the servo push rod motor is vertically connected to the fine-tuning swing arm through a connecting block The upper mold at the front end of the fine-tuning rocker arm is connected to two left and right fine-tuning fixed blocks, the fine-tuning rocker arm is hinged between the left and right fine-tuning fixed blocks, a clamping column extends downward from the bottom surface of the front end of the fine-tuning rocker arm, and a fine-tuning pressure block is connected to the top surface of the upper mold on the rear side of the deformation groove, and a guide hole is provided in the fine-tuning pressure block along the front and rear directions of the top surface of the upper mold, and a push-pull rod that can slide back and forth is guided in the guide hole, a clamping slot is provided on the top surface of the rear part of the push-pull rod, and the clamping column is clamped in the clamping slot for positioning, the front end of the push-pull rod is located in the deformation groove and is connected to a fine-tuning hook, and the front end of the fine-tuning hook is connected in the pull groove.

[0005] Preferably, the front end of the push-pull rod is in contact with the front side of the deformation groove, and the front end of the fine-tuning hook is in contact with the rear side of the groove; when the fine-tuning rocker arm swings, the push-pull rod moves forward to narrow the extrusion channel gap of the die lip by squeezing the front side of the deformation groove forward, and when the fine-tuning rocker arm swings, the push-pull rod moves backward to expand the extrusion channel gap of the die lip by squeezing the rear side of the groove backward.

[0006] Preferably, a servo push rod motor control room is also provided in the connecting frame, and each servo push rod motor is individually controlled after being connected in series via a communication cable.

[0007] Preferably, the lever ratio of the fine-tuning rocker arm is greater than or equal to 1:10.

[0008] The present invention causes the linear motion of the servo push rod motor to act on the swing rod, and uses the lever principle of the swing rod to amplify the force by multiples to push or pull the pull rod to adjust the lip gap. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure from another perspective; Figure 3 It is a structural schematic diagram of one set of electric fine-tuning mechanisms connected to the upper mold in the present invention; Figure 4 It is a schematic diagram of the internal cross-sectional structure of the present invention; Among them: 1—upper die; 11—deformation groove; 12—die lip; 13—drawing groove; 2—lower die; 3—extrusion channel; 4—electric fine-tuning mechanism; 41—connecting frame; 42—servo push rod motor; 43—connecting block; 44—fine-tuning rocker; 441—clamping column; 45—fine-tuning fixing block; 46—fine-tuning pressure block; 47—push-pull rod; 471—clamping slot; 48—fine-tuning hook. DETAILED DESCRIPTION

[0010] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0011] like Figures 1 to 4As shown, the present invention provides a servo push rod motor swing rod automatic fine-tuning extrusion die head, including an upper die 1 and a lower die 2, an extrusion channel 3 is formed between the upper die 1 and the lower die 2, a deformation groove 11 is arranged on the top surface of the front end of the upper die 1 along the width direction, a die lip 12 is formed on the upper die 1 at the front end of the deformation groove 11, a drawing groove 13 is arranged on the top surface of the die lip 12 along the width direction, a series of electric fine-tuning mechanisms 4 are evenly arranged on the top surface of the upper die 1 along the width direction, the electric fine-tuning mechanism 4 includes a connecting frame 41 connected to the top surface of the rear part of the upper die 1, a servo push rod motor 42 is arranged on the connecting frame 41, the servo push rod motor 42 is vertically connected to the rear end of the fine-tuning swing rod 44 through a connecting block 43, and the fine-tuning The upper mold 1 at the front end of the rocker arm 44 is connected to two left and right fine-tuning fixing blocks 45, the fine-tuning rocker arm 44 is hinged between the two left and right fine-tuning fixing blocks 45, and a clamping column 441 extends downward from the bottom surface of the front end of the fine-tuning rocker arm 44, and a fine-tuning pressure block 46 is connected to the top surface of the upper mold 1 on the rear side of the deformation groove 11, and a guide hole is provided in the fine-tuning pressure block 46 along the front and rear directions of the top surface of the upper mold 1, and a push-pull rod 47 that can slide back and forth is guided in the guide hole, and a clamping groove 471 is provided on the rear top surface of the push-pull rod 47, and the clamping column 441 is clamped into the clamping groove 471 for positioning, and the front end of the push-pull rod 47 is located in the deformation groove 11 and is connected to a fine-tuning hook 48, and the front end of the fine-tuning hook 48 is connected to the pull groove 13.

[0012] On the basis of the above scheme, the front end of the push-pull rod 47 is in contact with the front side of the deformation groove 11, and the front end of the fine-tuning hook 48 is in contact with the rear side of the drawing groove 13; when the fine-tuning rocker arm 44 swings, the push-pull rod 47 moves forward to narrow the extrusion channel gap of the die lip by squeezing the front side of the deformation groove 11 forward, and when the fine-tuning rocker arm 44 swings, the push-pull rod 47 moves backward to expand the extrusion channel gap of the die lip by squeezing the rear side of the drawing groove 13 backward.

[0013] In addition, a servo push rod motor control room is also provided in the connecting frame 41, and each servo push rod motor 42 is individually controlled after being connected in series by a communication cable.

[0014] In addition, the lever ratio of the fine-tuning rocker arm 44 is greater than or equal to 1:10, and the servo push rod motor 42 applies a smaller force, which is amplified by at least ten times through the force arm of the fine-tuning rocker arm 44. A smaller servo push rod motor 42 can be selected to achieve pushing and pulling of the die lip opening gap.

[0015] The working principle of the present invention is as follows: When the die lip gap at a specified position needs to be adjusted, the servo push rod motor 42 at the corresponding position is controlled to move, and the final output linear motion acts on the connecting block 43. The force acts vertically on the rear end of the fine-tuning rocker 44. There are actually two types, one is to pull the fine-tuning rocker 44 upward, and the other is to push the fine-tuning rocker 44 downward. The corresponding fine-tuning rocker 44 rotates upward or downward around the hinge axis at its front end.

[0016] When the fine-tuning rocker arm 44 rotates upward around the hinge axis at its front end, it pushes the slot 471 backward through the clamping column 441, causing the push-pull rod 47 to move backward, driving the fine-tuning hook 48 to pull the slot 13 backward, controlling the deformation of the die lip 12 in this area, and increasing the die lip opening gap.

[0017] Similarly, when the fine-tuning rocker arm 44 rotates downward around the hinge axis at its front end, it pushes the slot 471 forward through the clamping column 441, causing the push-pull rod 47 to move forward. The front end of the push-pull rod 47 pushes the die lip 12 forward, causing the die lip 12 in this area to deform, thereby reducing the die lip opening gap.

[0018] The above description is only a preferred embodiment of the present invention and does not impose any form of limitation on the invention. Any simple modification, equivalent change or modification made to the above embodiments based on the technical principle of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. A servo push rod motor swing arm automatic fine adjustment extrusion die head, comprising an upper die (1) and a lower die (2), wherein an extrusion channel (3) is formed between the upper die (1) and the lower die (2), characterized in that: A deformation groove (11) is arranged on the top surface of the front end of the upper mold (1) along the width direction, a die lip (12) is formed on the upper mold (1) at the front end of the deformation groove (11), a drawing groove (13) is arranged on the top surface of the die lip (12) along the width direction, a series of electric fine-tuning mechanisms (4) are evenly arranged on the top surface of the upper mold (1) along the width direction, the electric fine-tuning mechanism (4) comprises a connecting frame (41) connected to the top surface of the rear part of the upper mold (1), a servo push rod motor (42) is arranged on the connecting frame (41), the servo push rod motor (42) is vertically connected to the fine-tuning swing rod (44) through a connecting block (43), and the upper mold (1) at the front end position of the fine-tuning swing rod (44) is connected to two left and right fine-tuning fixed blocks (45), The fine-tuning swing rod (44) is hinged between the left and right fine-tuning fixed blocks (45); a clamping column (441) extends downward from the bottom surface of the front end of the fine-tuning swing rod (44); a fine-tuning pressure block (46) is connected to the top surface of the upper mold (1) at the rear side of the deformation groove (11); a guide hole is provided in the fine-tuning pressure block (46) along the front-to-rear direction of the top surface of the upper mold (1); a push-pull rod (47) that can slide forward and backward is provided in the guide hole; a clamping groove (471) is provided on the top surface of the rear part of the push-pull rod (47); the clamping column (441) is clamped into the clamping groove (471) for positioning; the front end of the push-pull rod (47) is located in the deformation groove (11) and is connected to a fine-tuning hook (48); the front end of the fine-tuning hook (48) is connected to the pull groove (13).

2. According to claim 1, a servo push rod motor swing rod automatic fine-tuning extrusion die head, characterized in that: The front end of the push-pull rod (47) is in contact with the front side of the deformation groove (11), and the front end of the fine-tuning hook (48) is in contact with the rear side of the draw groove (13); when the fine-tuning swing rod (44) swings, the push-pull rod (47) moves forward to reduce the extrusion channel gap of the die lip by squeezing the front side of the deformation groove (11) forward, and when the fine-tuning swing rod (44) swings, the push-pull rod (47) moves backward to expand the extrusion channel gap of the die lip by squeezing the rear side of the draw groove (13) backward.

3. The servo push rod motor swing rod automatic fine-tuning extrusion die head according to claim 1, characterized in that: A servo push rod motor control room is also provided in the connecting frame (41), and each servo push rod motor (42) is individually controlled after being connected in series via a communication cable.

4. The servo push rod motor swing arm automatic fine-tuning extrusion die head according to claim 1, characterized in that: The lever ratio of the fine-tuning rocker (44) is greater than or equal to 1:10.

Images