Clamping jaw structure of small bundling machine

Abstract

When a center rod rotates in one direction, a limiting mechanism limits rotation of a packaging head rotating shaft, the packaging head rotating shaft moves towards the end away from clamping jaws, a first rotating shaft moves along with the packaging head rotating shaft, a second rotating shaft moves to the center from the two ends of a kidney-shaped hole, and the two clamping jaws are opened; when the center rod rotates towards the other direction, the limiting mechanism limits rotation of the packing head rotating shaft, the packing head rotating shaft moves towards one end close to the clamping jaws, the first rotating shaft also moves along with the packing head rotating shaft, the second rotating shaft moves to the two ends from the center of the kidney-shaped hole, and the two clamping jaws are closed; and the limiting mechanism is opened, the packing head rotating shaft continues to move until being blocked by the lead screw check ring and then rotates together with the center rod, and the two clamping jaws twist. The utility model provides the bundling grabbing and clamping structure which is more compact in structure.

Description

Technical Field

[0001] This utility model relates to the field of balers, and in particular to a gripper structure for a small baler. Background Technology

[0002] In steel rolling production, fully automatic bundling machines are core equipment in the finishing and packaging system of the production line, and their performance directly affects the packaging quality of the bars. With technological advancements and increased automation, manual bundling methods are no longer suitable for current industrial production models. Innovation in steel rolling production lines and upgrades to related systems require bundling machines to develop towards greater intelligence and flexibility. Furthermore, with increasing environmental awareness and the shift from extensive to intensive industrial development, metallurgical equipment is also being improved towards energy conservation, emission reduction, and environmental friendliness.

[0003] The fully automatic baler is a high-tech equipment that integrates mechanics, hydraulics, electrical systems and automatic control.

[0004] Patent number "CN116022400B" discloses "a bar baling machine", but the baling head unit structure in the baling machine is too large. Utility Model Content

[0005] The purpose of this invention is to provide a gripper structure for a small baler.

[0006] The innovation of this utility model lies in providing a more compact bundling gripper structure.

[0007] To achieve the aforementioned objectives, the technical solution of this utility model is as follows:

[0008] A small baler gripper structure includes a central rod with a threaded section. A nut is screwed onto the threaded section. A hollow baling head rotating shaft is fitted over the central rod. One end of the baling head rotating shaft is connected to the nut, and the other end is connected to two grippers. When the two grippers are closed, they form a wire-locking opening. Each gripper has a first rotating shaft, the two ends of which are connected to the baling head rotating shaft. Each gripper also has a second rotating shaft. The end of the central rod at one end of the grippers has a baling head fixing shaft that can rotate circumferentially on the central rod. The baling head fixing shaft has oblique holes at both ends of the second rotating shaft, allowing the second rotating shaft to move within the oblique holes. The central rod is fixed with a feature to limit the nut from further moving towards the gripper. The screw retainer ring moves at one end of the claw, and the nut or packing head rotating shaft is also provided with a limiting mechanism to restrict the rotation of the nut or packing head rotating shaft; when the central rod rotates in one direction, the limiting mechanism restricts the rotation of the packing head rotating shaft, the packing head rotating shaft moves away from the end of the gripper, the first rotating shaft also moves accordingly, and the second rotating shaft moves from both ends of the waist hole to the center, and the two grippers open; when the central rod rotates in the other direction, the limiting mechanism restricts the rotation of the packing head rotating shaft, the packing head rotating shaft moves closer to the end of the gripper, the first rotating shaft also moves accordingly, and the second rotating shaft moves from the center of the waist hole to both ends, and the two grippers close; when the limiting mechanism opens, the packing head rotating shaft continues to move until it is blocked by the screw retainer ring and then rotates together with the central rod, and the two grippers twist.

[0009] Furthermore, the limiting mechanism includes a blocking wheel connected to the rotating shaft of the nut or packing head. The blocking wheel has a ridge and a protrusion arranged along the length of the central rod, with a gap between the protrusion and the ridge. The length of the protrusion is less than the length of the ridge. This limiting mechanism does not require overly complex external structures; a single limiting rod is sufficient. The rotation and movement of the blocking wheel effectively achieve the limiting effect.

[0010] Furthermore, the packing head fixing shaft is provided with a waist-shaped hole for inserting the end of the central rod. A spring is installed in the waist-shaped hole, and a limiting component is installed in the waist-shaped hole to restrict the sliding out of the end of the central rod. This provides sufficient space to prevent the second rotating shaft from getting stuck.

[0011] Furthermore, the two grippers engage via a boss-and-concave structure.

[0012] Furthermore, the packing head rotating shaft is provided with a notch for inserting a measuring jaw, and the jaw is chamfered at the outer edge of the bottom of the notch.

[0013] Furthermore, the outer end of the gripper is provided with a hook section to prevent the bundling thread from slipping out.

[0014] Furthermore, the threaded section is a trapezoidal lead screw, which provides greater precision.

[0015] The beneficial effects of this utility model are:

[0016] 1. The baler gripper of this utility model has a compact overall structure, and integrates the control of gripper opening and closing and baling line twisting. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model after removing the rotating shaft of the packing head.

[0019] Figure 3 This is a schematic diagram of the limiting structure. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will now be clearly and completely described with reference to the accompanying drawings.

[0021] Example 1: A small baler gripper structure includes a central rod 1, with a threaded section 1.1 on the central rod 1. The threaded section 1.1 is a trapezoidal lead screw, and a nut 2 is screwed onto the threaded section 1.1. A hollow baling head rotating shaft 3 is fitted around the central rod 1. One end of the baling head rotating shaft 3 is connected to the nut 2, and the other end is connected to two grippers 4. When the two grippers 4 are closed, they form a wire-locking opening 5. Each of the two grippers 4 is equipped with a No. 1 rotating shaft 6, and both ends of the No. 1 rotating shaft 6 are connected to the baling head rotating shaft 3. Each of the claws 4 is also equipped with a second rotating shaft 7. The end of the central rod 1 located at one end of the claw is equipped with a packing head fixing shaft 8 that can rotate circumferentially on the central rod 1. The packing head fixing shaft 8 is equipped with waist-shaped holes 8.1 that limit the two ends of the second rotating shaft 7. The second rotating shaft 7 can move within the waist-shaped holes 8.1. A screw retaining ring 9 is fixed on the central rod 1 to limit the nut 2 from moving further toward one end of the claw 4. The nut 2 or the packing head rotating shaft 3 is also equipped with a limiting mechanism 10 to limit the rotation of the nut 2 or the packing head rotating shaft 3. The limiting mechanism 10 includes a blocking wheel 10.1 connected to the nut 2 or the packing head rotating shaft 3. The blocking wheel 10.1 is equipped with a protrusion 10.2 and a protrusion 10.3 arranged along the length of the central rod. There is a gap between the protrusion 10.3 and the protrusion 10.2. The length of the protrusion 10.3 is less than the length of the protrusion 10.2.

[0022] The packing head fixing shaft 8 is provided with a waist hole 8.1 for inserting the end of the center rod 1. A spring 11 is provided in the waist hole 8.1, and a limiting component 8.2 is provided in the waist hole 8.1 to limit the sliding out of the end of the center rod 1.

[0023] The packing head rotating shaft 3 is provided with a notch for inserting two grippers 4. The grippers 4 are provided with a chamfer 4.2 at the bottom outer edge of the notch. The outer end of the grippers 4 is provided with a hook section 4.3 to prevent the bundling line from slipping out. The two grippers 4 are engaged by the concave-convex structure 4.1.

[0024] During operation: When power is applied to the center rod 1, and the center rod 1 rotates in one direction, the limiting mechanism 10 restricts the rotation of the packing head rotating shaft 3. When the limiting mechanism 10 restricts the rotation, the external component can be blocked at the protrusion 10.2, but not jammed by the protrusion 10.3. The packing head rotating shaft 3 moves away from the gripper 4, and the first rotating shaft 6 also moves accordingly. The second rotating shaft 7 moves from both ends of the waist hole 8.1 to the center. The two grippers 4 open, and the packing wire is inserted into the wire clamping port 5. Since the external component does not move, it is jammed between the protrusion 10.2 and the protrusion 10.3 at this time. When the center rod 1 rotates in another direction, the limiting mechanism 10 restricts the rotation of the packing head rotating shaft 3. The packing head rotating shaft 3 moves towards the end closer to the gripper 4, and the first rotating shaft 6 also moves accordingly. The second rotating shaft 7 moves from the center of the waist hole 8.1 to both ends, and the two grippers 4 close. When the limiting mechanism moves to the position without the protrusion 10.3, since the center rod rotates in a different direction at this time, the external parts do not rotate towards the side of the protrusion 10.2. The packing head rotating shaft 3 continues to move until it is blocked by the lead screw retaining ring 9 and rotates together with the center rod 1, and the two grippers 4 twist together.

[0025] The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

Claims

1. A small bale baler clamp jaw structure characterized by, The center rod is provided with a threaded section, a screw cap is screwed on the threaded section, a hollow packing head rotating shaft is sleeved on the center rod, one end of the packing head rotating shaft is connected to the screw cap, the other end of the packing head rotating shaft is connected to two clamping jaws, the two clamping jaws are closed to form a wire clamping opening, a first rotating shaft is arranged on each of the two clamping jaws, the two ends of the first rotating shaft are connected to the packing head rotating shaft, a second rotating shaft is arranged on each of the two clamping jaws, a packing head fixing shaft which can rotate circumferentially on the center rod is arranged at the end of the center rod near the clamping jaw, a waist-shaped hole is arranged on the packing head fixing shaft to limit the movement of the two ends of the second rotating shaft, the second rotating shaft can move in the waist-shaped hole, a lead screw stop ring is fixed on the center rod to limit the movement of the screw cap towards the end of the clamping jaw, a limiting mechanism is arranged on the screw cap or the packing head rotating shaft to limit the rotation of the screw cap or the packing head rotating shaft, when the center rod rotates in one direction, the limiting mechanism limits the rotation of the packing head rotating shaft, the packing head rotating shaft moves away from the end of the clamping jaw, the first rotating shaft also moves, the second rotating shaft moves from the two ends of the waist-shaped hole to the center, and the two clamping jaws are opened, when the center rod rotates in the other direction, the limiting mechanism limits the rotation of the packing head rotating shaft, the packing head rotating shaft moves towards the end of the clamping jaw, the first rotating shaft also moves, the second rotating shaft moves from the center of the waist-shaped hole to the two ends, and the two clamping jaws are closed, the limiting mechanism is opened, the packing head rotating shaft continues to move until it is stopped by the lead screw stop ring and rotates together with the center rod, and the two clamping jaws are twisted.

2. The small baler clamp jaw structure according to claim 1, characterized in that, The limiting mechanism includes a blocking wheel connected to the screw cap or the packing head rotating shaft, a protrusion and a protrusion block are arranged on the blocking wheel along the length direction of the center rod, a gap is formed between the protrusion block and the protrusion, and the length of the protrusion block is less than the length of the protrusion.

3. The small baler clamp jaw structure according to claim 1, characterized in that, A waist-shaped hole is arranged on the packing head fixing shaft to insert the end of the center rod, a spring is arranged in the waist-shaped hole, and a limiting assembly is arranged in the waist-shaped hole to limit the sliding of the end of the center rod.

4. The small baler clamp jaw structure according to claim 1, characterized in that, The two clamping jaws are clamped by a concave-convex structure.

5. The small baler clamp jaw structure according to claim 1, characterized in that, A notch is arranged on the packing head rotating shaft to insert the clamping jaw, and a chamfer is arranged at the outer edge of the bottom of the clamping jaw.

6. The small baler clamp jaw structure according to claim 1, characterized in that, A hook section is arranged at the outer end of the clamping jaw to prevent the wire from escaping.

7. The small baler clamp jaw structure according to claim 1, wherein The threaded section is a trapezoidal lead screw.

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