U iron punching device and using method thereof

Abstract

The invention provides a U-iron punching device and a using method thereof.The U-iron punching device comprises a rack, a transverse conveying belt is arranged on the rack, a limiting mechanism is arranged on the upper side of the transverse conveying belt, a release agent dispensing mechanism is arranged above the limiting mechanism, and a feeding station is arranged at the discharging end of the limiting mechanism; a punching conveying channel is arranged on one side of the feeding station, the width of the punching conveying channel is matched with the outer diameter of U iron, a positioning hole is formed in the upper end of the punching conveying channel, the inner diameter of the positioning hole is smaller than the outer diameter of the U iron, a vertically-lifting sliding table is arranged above the positioning hole, and a punching head corresponding to the positioning hole is arranged at the lower end of the sliding table. And the other side of the feeding station is provided with a material pushing rod which longitudinally reciprocates. The U iron is ensured to be fed at one station corresponding to a positioning hole every time, so that the condition of punching deviation is avoided; and through the arrangement of the release agent dispensing mechanism, the punching position of the U-shaped iron is dispensed with a release agent, and the U-shaped iron is prevented from being clamped on the punching head during punching.

Description

Technical Field

[0001] The invention relates to the technical field of punching equipment, and in particular to a U-iron punching device and a use method thereof. Background Art

[0002] The U-iron is the base of the speaker, and a hole needs to be punched in the middle. CN220718606U discloses a feeding mechanism for automatic punching of the U-iron, which is convenient for the U-iron to enter the punching device with the opening facing upwards. However, the following problems still exist in the process of punching holes in the U-iron: 1. How to effectively cooperate with the punching head and the push rod to ensure that a new U-iron is pushed into place before the punching head moves down; 2. When the punching head punches a hole in the middle of the U-iron, the U-iron is easily stuck on the punching head and cannot be effectively detached, which affects the efficiency of punching holes. Summary of the invention

[0003] The present invention provides a U-iron punching device and a use method thereof, which ensure that the U-iron is fed into a workstation corresponding to a positioning hole each time, thereby avoiding the situation where the holes are punched off-center; through the setting of a release agent dripping mechanism, the release agent is dripped on the punching position of the U-iron, thereby avoiding the U-iron from getting stuck on the punching head when punching.

[0004] The technical solution of the present invention is implemented as follows: a U-iron punching device comprises a frame, a transverse conveyor belt is arranged on the frame, a limiting mechanism is arranged on the upper side of the transverse conveyor belt, the limiting mechanism enables the U-iron to be conveyed in a row, a release agent dripping mechanism is arranged above the limiting mechanism, a feeding station is arranged at the discharge end of the limiting mechanism, the feeding station can only accommodate one U-iron, a punching and conveying channel is arranged on one side of the feeding station, the width of the punching and conveying channel matches the outer diameter of the U-iron, a positioning hole is arranged at the upper end of the punching and conveying channel, the spacing between the feeding station and the positioning hole is an integer multiple of the U-iron, the inner diameter of the positioning hole is smaller than the outer diameter of the U-iron, a vertically lifting slide is arranged above the positioning hole, a punching head corresponding to the positioning hole is arranged at the lower end of the slide, and a longitudinally reciprocating push rod is arranged on the other side of the feeding station.

[0005] Furthermore, the push rod is connected to the slide, a longitudinal slide rail is provided on the frame, the slide moves along the longitudinal slide rail, a return spring is provided between the slide and the frame, an inclined guide plate is provided on the slide, a vertical push rod cooperating with the inclined guide plate is fixed on the slide, a roller is provided at the lower end of the vertical push rod, the roller moves along the inclined guide plate, the slide moves downward, the vertical push rod pushes the slide outward, the return spring is stretched, the slide moves up, and the return spring pulls the slide to reset.

[0006] Furthermore, the limiting mechanism includes two side baffles, which are respectively arranged on both sides of the upper end of the transverse conveyor belt, and a top baffle is arranged on the upper end of the side baffles. The spacing between the two side baffles only allows a U-iron to pass horizontally. There is a drip channel between the two top baffles. The spacing of the drip channels is smaller than the outer diameter of the U iron. The punching points of the U iron correspond to the drip channels, and the release agent drip mechanism is arranged above the drip channel.

[0007] Furthermore, the demoulding agent dripping mechanism includes a bracket and a plastic dripping bottle, the plastic dripping bottle includes a conical bottle body and a dripper threadedly connected to the conical bottle body, the bracket is fixed on a frame on one side of the dripping channel, and a clamping seat is provided on the bracket, the clamping seat is used to clamp the plastic dripping bottle, and a steering wheel is provided on the upper end of the bracket, and a pull rope slides through the steering wheel, one end of the pull rope is connected to the clamping seat, and the other end is connected to the slide, and a supporting spring is also provided between the clamping seat and the upper end of the bracket, and the clamping seat is detachably connected to the threaded interface of the dripper, and a conical sleeve is fixed on the bracket above the clamping seat, and the conical sleeve is mounted on the outside of the conical bottle body, the clamping seat drives the plastic dripping bottle to move downward, and the conical sleeve squeezes the conical bottle body.

[0008] Furthermore, a sealing mechanism cooperating with the dripper is provided on the bracket below the clamping seat, and the sealing mechanism includes a horizontal plate, which is located directly above the dripping channel. A through hole cooperating with the dripper is provided on the horizontal plate, and a sealing piece is provided at the lower end of the through hole. One end of the sealing piece is a free end, and the other end is hinged to the horizontal plate through a rotating shaft. A torsion spring is provided on the rotating shaft. The dripper abuts against the upper end of the sealing piece, and the dripper moves downward to push open the sealing piece.

[0009] Furthermore, a material baffle plate is provided at one end of the feeding station away from the side baffle plate, and only one U iron can be accommodated between the material baffle plate and the side baffle plate.

[0010] Furthermore, the positioning holes include two, the two positioning holes are spaced apart in the longitudinal direction, and the distance between the two positioning holes is a U iron.

[0011] A method for using a U-iron punching device comprises the following steps:

[0012] (1) The U irons are sent to the transverse conveyor belt one by one, and the transverse conveyor belt drives the U irons to be sent in a row along the limiting mechanism. During the conveying process, the release agent dripping mechanism drips the release agent at the punching point of the U iron;

[0013] (2) The horizontal conveyor belt delivers the U-iron to the feeding station, and the push rod moves longitudinally to deliver the U-iron at the feeding station to the punching conveying channel. The slide moves down, driving the punching head to pass through the positioning hole to punch the U-iron. After punching, the slide moves up and resets;

[0014] (3) Repeat step (2), the push rod pushes the subsequent U iron into the punching conveying channel, and the subsequent U iron pushes the punched U iron to move along the punching conveying channel until it leaves the punching conveying channel.

[0015] Furthermore, in step (1), the method of applying the release agent by the release agent coating mechanism is as follows: when the slide moves up, the support spring stretches, driving the clamping seat and the plastic dropper bottle to move down, the conical sleeve squeezes the conical bottle body of the plastic dropper bottle, and the release agent drips on the punched hole of the U iron; when the slide moves down, the clamping seat and the plastic dropper bottle are driven to move up and reset by the pull rope, and the support spring is compressed.

[0016] Furthermore, when the plastic dropper bottle moves downward, the sealing piece is pushed to rotate downward, and the dripper passes through the through hole; after the plastic dropper bottle moves upward, the sealing piece is reset under the action of the torsion spring to close the outlet of the dripper.

[0017] Beneficial effects of the present invention:

[0018] The present invention facilitates feeding one U iron at a time at the feeding station through the setting of the limit mechanism, and the push rod sends the U iron to the punching conveying channel, and the U irons in the punching conveying channel are pushed against each other one by one, thereby ensuring that the U iron is fed to one station corresponding to the positioning hole each time, thereby avoiding the situation of skewed punching. Moreover, when the slide drives the punching head to move down for punching, the vertical push rod drives the slide seat and the push rod to move outward through the inclined guide plate, and when the slide drives the punching head to move up, the slide seat and the push rod are reset under the action of the reset spring, and the push rod pushes the U iron at the feeding station into the punching conveying channel, without the need to add an additional driving mechanism, and the push rod and the punching head are also coordinated in an orderly manner to avoid mutual interference.

[0019] The release agent dripping mechanism of the present invention connects the clamping seat and the slide table through the setting of the pull rope. When the slide table moves down, the clamping seat drives the conical bottle body to move up and reset, and the slide table moves up. The clamping seat and the slide table move down under the action of the support spring to drip the release agent. When the slide table moves up, the push rod pushes the U iron of the feeding station to move, and other U irons on the transverse conveyor belt stop moving due to the push rod, which facilitates the accurate position of the release agent dripping; when the slide table moves down, the push rod moves outward, and the U iron on the transverse conveyor belt continues to be transported and enters the feeding station. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a front view of the present invention;

[0022] Figure 2 It is a right side view of the inclined guide plate;

[0023] Figure 3 It is the left view of the transverse conveyor belt;

[0024] Figure 4 A top view of the punched conveying channel;

[0025] Figure 5 It is the front view of the release agent dripping mechanism;

[0026] Figure 6 It is a schematic diagram of the structure of the through hole.

[0027] Frame 1, transverse conveyor belt 2, side baffle 3, infrared proximity switch 4, top baffle 5, bracket 6, plastic dropper bottle 7, clamping seat 8, conical sleeve 9, feeding station 10, baffle plate 11, punching conveying channel 12, positioning hole 13, slide 14, punching head 15, push rod 16, slide seat 17, longitudinal slide rail 18, return spring 19, inclined guide plate 20, vertical push rod 21, roller 22, transverse plate 23, through hole 24, sealing piece 25, rotating shaft 26, steering wheel 27, pull rope 28, support spring 29. DETAILED DESCRIPTION

[0028] 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.

[0029] The horizontal and vertical directions of the present invention are relative to Figure 1 The position relationship shown.

[0030] like Figure 1 and 3 As shown, a U-iron punching device includes a frame 1, a transverse conveyor belt 2 is arranged on the frame 1, a limiting mechanism is arranged on the upper side of the transverse conveyor belt 2, and an infrared proximity switch 4 is fixed on the upper side of the feeding end of the limiting mechanism. The infrared proximity switch 4 is a reflective infrared proximity switch 4, which is used to sense the U-iron passing through. The limiting mechanism includes two side baffles 3, and the two side baffles 3 are respectively arranged on both sides of the upper end of the transverse conveyor belt 2. The side baffles 3 are fixedly connected to the frame 1. The spacing between the two side baffles 3 only allows one U-iron to pass horizontally. Through this structure, it is convenient for the U-irons to be transported in a row one by one. A top baffle 5 is fixed on the upper end of the side baffle 3. There is a dripping channel between the two top baffles 5. The spacing of the dripping channel is smaller than the outer diameter of the U-iron, so as to prevent the U-iron transported against each other from leaving the conveying route. The punching place of the U-iron corresponds to the dripping channel, and the release agent dripping mechanism is arranged above the dripping channel.

[0031] like Figure 1 and 5As shown, the release agent dripping mechanism includes a bracket 6 and a plastic dripping bottle 7. The plastic dripping bottle 7 includes a conical bottle body and a dripper connected to the conical bottle body by thread. The bracket 6 is fixed on the frame 1 on one side of the dripping channel. A vertically sliding clamping seat 8 is provided on the bracket 6. The dripper of the plastic dripping bottle 7 faces downward. The clamping seat 8 is detachably connected to the threaded interface of the dripper. The clamping seat 8 is an annular clamp. The threaded interface of the dripper is placed in the clamp, and then the bolts are tightened. If the plastic dripper needs to be removed, the bolts can be loosened. A conical sleeve 9 is fixed on the bracket 6 above the clamping seat 8. The conical sleeve 9 is sleeved on the outside of the conical bottle body. When the clamping seat 8 drives the plastic dripping bottle 7 to move downward, the conical sleeve 9 squeezes the conical bottle body to make the release agent drip out.

[0032] like Figure 1 , 2 As shown in Figure 4, a feeding station 10 is provided at the discharge end of the limiting mechanism. A baffle plate 11 is provided at one end of the feeding station 10 away from the side baffle plate 3. Only one U-iron can be accommodated between the baffle plate 11 and the side baffle plate 3, that is, after the U-iron is delivered to the baffle plate 11 along the transverse conveyor belt 2, the baffle plate 11 stops the U-iron from moving. A punching conveying channel 12 is provided on one side of the feeding station 10. The width of the punching conveying channel 12 matches the outer diameter of the U-iron, so that the U-iron can only pass through the punching conveying channel 12 in a straight line. A positioning hole 13 is provided at the upper end of the punching conveying channel 12. The inner diameter of the positioning hole 13 is smaller than the outer diameter of the U-iron. The U-iron cannot be separated from the punching conveying channel 12 from the positioning hole 13, so as to prevent the U-iron from being stuck on the punching head 15 and being separated from the punching conveying channel 12 along the punching head 15. The positioning holes 13 include two, and the two positioning holes 13 are arranged at intervals along the longitudinal direction. The spacing between the two positioning holes 13 is one U-iron.

[0033] like Figure 1 and 5As shown, a vertically lifting slide 14 is arranged above the positioning hole 13, and the slide 14 is lifted and lowered by a hydraulic cylinder. A punching head 15 corresponding to the positioning hole 13 is fixed at the lower end of the slide 14, that is, the punching head 15 also includes two, the punching head 15 close to the push rod 16 is used for pre-punching, and the punching head 15 far from the push rod 16 is used for hole forming. A steering wheel 27 is installed at the upper end of the bracket 6, and a pull rope 28 slides through the steering wheel 27. One end of the pull rope 28 is connected to the clamping seat 8, and the other end is connected to the slide 14. A support spring 29 is also arranged between the clamping seat 8 and the upper end of the bracket 6, that is, when the slide 14 moves down to punch holes, the clamping seat 8 and the plastic dropper 7 are driven to move up and reset through the pull rope 28, and when the slide 14 moves up and resets, the plastic dropper 7 is driven to move down through the clamping seat 8. In addition, because the sliding table 14 moves down a long distance, the inner diameter of the conical sleeve 9 is larger than the outer diameter of the opening of the conical bottle body, and smaller than the outer diameter of the closed end of the conical bottle body. After the plastic dropper 7 moves down a certain distance, the conical sleeve 9 can squeeze the conical bottle body, avoiding dripping the release agent at the beginning of the downward movement, which will cause a large amount of release agent to be extruded. The dripping of the release agent is more conducive to the separation of the U iron and the punching head after punching.

[0034] like Figure 1 and 2 As shown, a longitudinal reciprocating push rod 16 is provided on the other side of the feeding station 10, and the push rod 16 is connected to a slide 17. A longitudinal slide rail 18 is fixed on the frame 1, and the slide 17 moves along the longitudinal slide rail 18. A return spring 19 is connected between the slide 17 and the frame 1, and an inclined guide plate 20 is fixed on the slide 17. A vertical push rod 21 that cooperates with the inclined guide plate 20 is fixed on the slide 14, and a roller 22 is connected to the lower end of the vertical push rod 21. The roller 22 moves along the inclined guide plate 20, the slide 14 moves downward, and the vertical push rod 21 pushes the slide 17 outward, the return spring 19 is stretched, the slide 14 moves upward, and the return spring 19 pulls the slide 17 to reset, and the push rod 16 moves longitudinally to deliver the U iron at the feeding station 10 to the punching conveying channel 12. When the slide 14 moves upward, the push rod 16 pushes the U-iron of the feeding station 10 to move, while the other U-irons on the transverse conveyor belt 2 stop moving due to the push rod 16.

[0035] A method for using a U-iron punching device comprises the following steps:

[0036] (1) The feeding mechanism of patent document CN220718606U is used to push the U irons one by one onto the transverse conveyor belt 2, and the transverse conveyor belt 2 drives the U irons to be pushed one by one along the limiting mechanism and transported in a row. During the transportation process, the release agent dripping mechanism drips the release agent at the punching position of the U iron;

[0037] (2) The transverse conveyor belt 2 delivers the U-iron to the feeding station 10, and the push rod 16 moves longitudinally to deliver the U-iron at the feeding station 10 to the punching conveying channel 12. The slide 14 moves downward, driving the punching head 15 to pass through the positioning hole 13 to punch the U-iron. After punching, the slide 14 moves upward and resets;

[0038] (3) Repeat step (2), the push rod 16 pushes the subsequent U iron into the punching conveying channel 12, and the subsequent U iron pushes the punched U iron to move along the punching conveying channel 12 until it leaves the punching conveying channel 12.

[0039] Furthermore, in step (2), the method of applying the release agent by the release agent coating mechanism is as follows: when the slide 14 moves upward, the support spring 29 stretches, driving the clamping seat 8 and the plastic dropper bottle 7 to move downward, the conical sleeve 9 squeezes the conical bottle body of the plastic dropper bottle 7, and the release agent drips on the punched hole of the U iron; when the slide 14 moves downward, the pull rope 28 drives the clamping seat 8 and the plastic dropper bottle 7 to move upward and reset, and the support spring 29 is compressed.

[0040] Example 2

[0041] This embodiment is basically the same as embodiment 1, except that: Figure 1 , 5 As shown in Figure 6, a sealing mechanism that cooperates with the dripper is provided on the bracket 6 below the clamping seat 8. The sealing mechanism includes a horizontal plate 23, which is fixed on the bracket 6 and is located directly above the dripping channel. A through hole 24 that cooperates with the dripper is provided on the horizontal plate 23. The inner diameter of the through hole 24 is relatively large and does not affect the downward movement of the dripper. A sealing piece 25 is provided at the lower end of the through hole 24. One end of the sealing piece 25 is a free end, and the other end is hinged to the horizontal plate 23 through a rotating shaft 26. A torsion spring is provided on the rotating shaft 26. The dripper abuts against the upper end of the sealing piece 25. The dripper moves downward and pushes the sealing piece 25 away. When the plastic drip bottle 7 moves downward, the sealing piece 25 is pushed to rotate downward and pass through the through hole 24; after the plastic drip bottle 7 moves upward, the sealing piece 25 is reset under the action of the torsion spring, closing the outlet of the dripper to prevent the plastic drip bottle 7 from leaking.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A U-iron punching device, comprising a frame, characterized in that: A transverse conveyor belt is arranged on the frame, and a limiting mechanism is arranged on the upper side of the transverse conveyor belt. The limiting mechanism enables the U-irons to be conveyed in a row. A release agent dripping mechanism is arranged above the limiting mechanism. A feeding station is arranged at the discharge end of the limiting mechanism. A punching and conveying channel is arranged on one side of the feeding station. The width of the punching and conveying channel matches the outer diameter of the U-iron. A positioning hole is arranged at the upper end of the punching and conveying channel. The inner diameter of the positioning hole is smaller than the outer diameter of the U-iron. The distance between the feeding station and the positioning hole is an integer multiple of the U-iron. A vertically lifting slide is arranged above the positioning hole. A punching head corresponding to the positioning hole is arranged at the lower end of the slide. A longitudinal reciprocating push rod is arranged on the other side of the feeding station.

2. A U-iron punching device according to claim 1, characterized in that: The push rod is connected to the slide, and a longitudinal slide rail is provided on the frame. The slide moves along the longitudinal slide rail. A reset spring is provided between the slide and the frame, and an inclined guide plate is provided on the slide. A vertical push rod that cooperates with the inclined guide plate is fixed on the slide. A roller is provided at the lower end of the vertical push rod. The roller moves along the inclined guide plate, the slide moves downward, the vertical push rod pushes the slide to move outward, the reset spring is stretched, the slide moves up, and the reset spring pulls the slide to reset.

3. A U-iron punching device according to claim 1, characterized in that: The limiting mechanism includes two side baffles, which are respectively arranged on both sides of the upper end of the transverse conveyor belt. A top baffle is arranged on the upper end of the side baffle. The distance between the two side baffles is only enough to allow a U iron to pass horizontally. There is a drip channel between the two top baffles. The distance between the drip channels is smaller than the outer diameter of the U iron. The punching point of the U iron corresponds to the drip channel. The release agent drip mechanism is arranged above the drip channel.

4. A U-iron punching device according to claim 1 or 3, characterized in that: The release agent dripping mechanism includes a bracket and a plastic dropper, the plastic dropper includes a conical bottle body and a dripper threadedly connected to the conical bottle body, the bracket is fixed on a frame on one side of the limiting mechanism, a clamping seat is arranged on the bracket, the clamping seat is used to clamp the plastic dropper, a steering wheel is arranged on the upper end of the bracket, a pull rope slides through the steering wheel, one end of the pull rope is connected to the clamping seat, and the other end is connected to the slide, a supporting spring is also arranged between the clamping seat and the upper end of the bracket, a conical sleeve is fixed on the bracket above the clamping seat, the conical sleeve is mounted on the outer side of the conical bottle body, the clamping seat drives the plastic dropper to move downward, and the conical sleeve squeezes the conical bottle body.

5. A U-iron punching device according to claim 4, characterized in that: A sealing mechanism cooperating with the dripper is arranged on the bracket below the clamping seat, and the sealing mechanism comprises a horizontal plate, on which a through hole cooperating with the dripper is arranged, and a sealing piece is arranged at the lower end of the through hole, one end of the sealing piece is a free end, and the other end is hinged to the horizontal plate through a rotating shaft, and a torsion spring is arranged on the rotating shaft, the dripper abuts against the upper end of the sealing piece, the dripper moves downward, and pushes open the sealing piece.

6. A U-iron punching device according to claim 1, characterized in that: A material baffle plate is arranged at one end of the feeding station away from the side baffle plate, and only one U iron can be accommodated between the material baffle plate and the side baffle plate.

7. A U-iron punching device according to claim 1, characterized in that: The two positioning holes are arranged at intervals in the longitudinal direction, and the distance between the two positioning holes is a U iron.

8. A method for using the U-iron punching device according to any one of claims 1 to 7, characterized in that: The following steps are involved: (1) The U irons are sent to the transverse conveyor belt one by one, and the transverse conveyor belt drives the U irons to be sent in a row along the limiting mechanism. During the conveying process, the release agent dripping mechanism drips the release agent at the punching point of the U iron; (2) The horizontal conveyor belt delivers the U-iron to the feeding station, and the push rod moves longitudinally to deliver the U-iron at the feeding station to the punching conveying channel. The slide moves down, driving the punching head to pass through the positioning hole to punch the U-iron. After punching, the slide moves up and resets; (3) Repeat step (2), the push rod pushes the subsequent U iron into the punching conveying channel, and the subsequent U iron pushes the punched U iron to move along the punching conveying channel until it leaves the punching conveying channel.

9. The method of use according to claim 8, characterized in that: In step (1), the method of applying the release agent by the release agent dripping mechanism is as follows: when the slide moves up, the support spring stretches, driving the clamping seat and the plastic dripping bottle to move down, the conical sleeve squeezes the conical bottle body of the plastic dripping bottle, and the release agent drips on the punched hole of the U iron; when the slide moves down, the clamping seat and the plastic dripping bottle are driven to move up and reset through the pull rope, and the support spring is compressed.

10. The method of use according to claim 9, characterized in that: When the plastic dropper bottle moves downward, the sealing piece is pushed to rotate downward, and the dripper passes through the through hole; after the plastic dropper bottle moves upward, the sealing piece is reset under the action of the torsion spring to close the outlet of the dripper.

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