Bag pressing device

Abstract

The utility model provides a bag pressing device which comprises a support, a pressing rod, a connecting rod assembly and a driving air cylinder, the driving air cylinder is fixedly arranged on the side edge of the support, the connecting rod assembly comprises swing rods oppositely arranged on the two sides of the support, the swing rods are rotatably arranged on the support, one end of each swing rod is provided with a kidney-shaped hole, and the other end of each swing rod is provided with a nut. The two ends of the pressing rod are inserted into kidney-shaped holes of the two swing rods respectively, springs are arranged on the swing rods, one ends of the springs are connected with the pressing rod, the other ends of the springs are connected with the swing rods, the other ends of the swing rods are movably connected with the piston end of the driving air cylinder, and the driving air cylinder stretches out and draws back to drive the swing rods to rotate. The pressing plate rotates towards the middle of the support or away from the middle of the support, and when the pressing plate presses materials downwards, the spring is in a deformed state. The pressing rod is driven by the elastic force of the spring to press downwards, so that flexible pressing is realized, and the influence of the pressing rod on materials is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation equipment, and particularly relates to a bale pressing device. Background Art

[0002] In industrial production, factories often use a downward pressing mechanism to fix materials. The downward pressing mechanism applies a downward pressure to the materials to keep the materials stable at the work station, so that the materials can remain stable during the moving or processing process, and prevent the materials from shaking or disengaging from the work station under the influence of external forces.

[0003] In the existing downward pressing mechanism, the downward pressing component is usually directly driven by a power mechanism. The downward pressing component directly presses on the materials under the drive of the power mechanism. To stably fix the materials, the pressure of the downward pressing component on the materials is relatively large, and indentations are usually left on the contact surface between the materials and the downward pressing component. For packaged materials, the materials with indentations cannot be used continuously, resulting in waste of materials and increased production costs. Summary of the Utility Model

[0004] The purpose of the utility model is to propose a bale pressing device in view of the above-mentioned deficiencies of the prior art. The driving air cylinder is used to drive the swing rod to rotate and press down the materials. A spring is arranged between the pressing rod and the swing rod. When pressing down the materials, the spring deforms, and the elastic force of the spring drives the pressing rod to press down, realizing flexible pressing down to reduce the influence of the pressing rod on the materials.

[0005] The utility model proposes a bale pressing device, which includes a bracket, a pressing rod, a connecting rod assembly and a driving air cylinder. The driving air cylinder is fixedly arranged on the side of the bracket. The connecting rod assembly includes swing rods oppositely arranged on both sides of the bracket. The swing rods are rotatably arranged on the bracket. One end of each swing rod is provided with a waist-shaped hole. Both ends of the pressing rod are respectively inserted into the waist-shaped holes of the two swing rods. Springs are arranged on the swing rods. One end of each spring is connected to the pressing rod, and the other end is connected to the swing rod. The other end of the swing rod is movably connected to the piston end of the driving air cylinder. The telescopic movement of the driving air cylinder drives the swing rod to rotate, so that the pressing rod rotates towards the middle of the bracket or away from the middle of the bracket. When the pressing rod presses down the materials, the springs are in a deformed state.

[0006] A preferred technical solution of the utility model: It further includes a connecting rod, and both ends of the connecting rod are respectively hinged to the piston end of the driving air cylinder and the end of the swing rod.

[0007] A preferred technical solution of the utility model: Inside the connecting rod assembly, a synchronizing rod is arranged between the two swing rods, and both ends of the synchronizing rod are respectively fixedly connected to the two swing rods.

[0008] Preferred technical solution of the present utility model: The two connecting rod assemblies are symmetrically arranged at both ends of the bracket, and both connecting rods are connected to the piston end of the driving cylinder and are symmetric about the piston end of the driving cylinder.

[0009] Preferred technical solution of the present utility model: The waist-shaped hole is a through hole, and limiting rings are arranged at both ends of the pressing rod.

[0010] Preferred technical solution of the present utility model: The waist-shaped hole extends along the length direction of the swing rod, and the deformation direction of the spring is consistent with the length direction of the waist-shaped hole.

[0011] Preferred technical solution of the present utility model: Roller groups are arranged on both sides of the bracket. Each roller group includes a plurality of rollers with parallel rotation axes and arranged in a straight line. The two roller groups respectively support the material on both sides of the bottom of the material.

[0012] Preferred technical solution of the present utility model: It further includes an auxiliary wheel group arranged between the two roller groups. The auxiliary wheel group is connected to the bracket. The auxiliary wheel group includes a plurality of auxiliary wheels with parallel rotation axes and arranged in a straight line. The auxiliary wheel group supports the material at the bottom of the material.

[0013] Preferred technical solution of the present utility model: The spring is a tension spring. A plurality of adjustment holes are arranged on the swing rod at intervals. Adjustment rods are arranged in the adjustment holes. One end of the spring is hung on the pressing rod, and the other end is hung on the adjustment rod.

[0014] The pressing and packaging device of the present utility model has the following beneficial effects: The swing rod rotates under the action of the driving cylinder, driving the pressing rod to move. The pressing rod is movably arranged on the swing rod through the spring. After the pressing rod contacts the material, the spring is deformed by force. The elastic force of the spring acts on the pressing rod to press the material down, playing a role in stabilizing the material; Different from the direct action of the movement of the pressing rod on the material in this application, the elastic force of the spring is used to press the material down by the pressing rod, realizing flexible pressing and avoiding damage to the material by the pressing rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings incorporated into the description and constituting a part of the description illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model. In these drawings, like reference numerals are used to represent like elements. The following drawings in the description are some embodiments of the present utility model, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a working schematic diagram of an embodiment of the present utility model.

[0017] Figure 2This is a schematic structural diagram of an embodiment of the present utility model.

[0018] Figure 3 This is a side view of an embodiment of the present utility model.

[0019] Figure 4 This is a top view of an embodiment of the present utility model.

[0020] Figure 5 This is a schematic structural diagram of a connecting rod assembly in an embodiment of the present utility model.

[0021] In the figure: 10, bracket; 11, support plate; 20, driving cylinder; 30, connecting rod assembly; 31, swing rod; 311, waist-shaped hole; 312, adjustment hole; 313, mounting hole; 314, connecting groove; 32, spring; 33, connecting rod; 34, synchronizing rod; 35, pedestal bearing; 36, adjusting rod; 40, pressing rod; 41, limiting ring; 50, roller group; 60, auxiliary wheel group; 70, material. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other arbitrarily.

[0023] Please refer to Figures 1 to 4 A bale pressing device includes a bracket 10, a connecting rod assembly 30, a pressing rod 40 and a driving cylinder 20. The driving cylinder 20 is fixedly arranged on the bracket 10. The connecting rod assembly 30 includes swing rods 31 oppositely arranged on both sides of the bracket 10. The swing rods 31 are hinged to the bracket 10. One end of the swing rod 31 is movably connected to the driving cylinder 20, and the other end thereof is provided with a waist-shaped hole 311. Both ends of the pressing rod 40 are respectively inserted into the waist-shaped hole 311. The pressing rod 40 can move along the length of the waist-shaped hole 311 under force. A spring 32 is arranged on the swing rod 31. Both ends of the spring 32 are respectively connected to the pressing rod 40 and the swing rod 31. The telescopic movement of the pneumatic cylinder drives the swing rod 31 to rotate, so that the pressing rod 40 presses down to contact the material 70. The spring 32 is deformed under force, and then reacts on the pressing rod 40 to press the pressing rod 40 towards the material 70, realizing flexible and stable material 70.

[0024] The bracket 10 includes two relatively parallel and spaced-apart support plates 11. The material 70 is placed on the support plates 11, and the driving cylinder 20 is arranged outside one of the support plates 11. Two swing rods 31 are respectively rotatably arranged on the two support plates 11. Both ends of the pressing rod 40 are respectively connected to the swing rods 31. A synchronizing rod 34 is arranged between the two swing rods 31. The driving cylinder 20 acts on one of the swing rods 31. Under the action of the synchronizing rod 34, the two swing rods 31 rotate synchronously to drive the pressing rod 40 to move downward and press.

[0025] Specifically, in this embodiment, pedestal bearings 35 are fixedly arranged on the two support plates 11. Both ends of the synchronizing rod 34 are respectively inserted into the two pedestal bearings 35. The synchronizing rod 34 can rotate in the pedestal bearings 35. Both ends of the synchronizing rod 34 are respectively fixedly connected to the swing rods 31. The synchronizing rod 34 serves as both a connecting member connecting the two swing rods 31 and a rotating shaft for the swing rods 31 to rotate. When the swing rod 31 is stressed, the swing rod 31 and the synchronizing rod 34 rotate together around the central axis of the synchronizing rod 34, driving the pressing rod 40 at the end of the swing rod 31 to move, realizing downward pressing.

[0026] In this embodiment, mounting holes 313 and connection grooves 314 are arranged on the swing rod 31. Both the connection groove 314 and the mounting hole 313 penetrate through the swing rod 31. The connection groove 314 is arranged close to the side surface of the swing rod 31. The width of the connection groove 314 is much smaller than the diameter of the mounting hole 313. The connection groove 314 communicates with the mounting hole 313. Threaded holes are arranged on both side walls of the connection groove 314. The end of the synchronizing rod 34 is inserted into the mounting hole 313. Screws are arranged in the threaded holes. By tightening the screws, the two inner walls of the connection groove 314 approach each other to clamp the synchronizing rod 34 located in the mounting hole 313, fixing the synchronizing rod 34 to the swing rod.

[0027] One end of the swing rod 31 is connected to the pressing rod 40, and the other end is connected to the piston end of the driving cylinder 20 through a connecting rod 33. The connecting rod 33 is a straight rod, and both ends are respectively hinged to the piston end of the driving cylinder 20 and the end of the swing rod 31. When the piston end of the driving cylinder 20 extends or retracts, the connecting rod 33 shakes under the action of the driving cylinder 20. Since the swing rod 31 is hinged to the bracket 10, the swing rod 31 can only rotate around the bracket 10 under the drive of the connecting rod 33.

[0028] In this embodiment, the driving cylinder 20 is fixedly arranged on the support plate 11, and the piston end of the driving cylinder 20 is vertically arranged upward. Two connecting rod assemblies 30 are symmetrically arranged at both ends of the bracket 10 with respect to the piston end of the driving cylinder 20, so that when the driving cylinder 20 acts, the two connecting rods 33 act synchronously, and then drive the two swing rods 31 to rotate, and the two pressing rods 40 press downward simultaneously to contact the material 70 and stabilize the material 70.

[0029] To facilitate the adjustment of the elastic force of the spring 32 and change the downward pressure of the pressure rod 40, a number of adjustment holes 312 arranged in a straight line are provided on the swing rod 31. The arrangement direction of the adjustment holes 312 is the same as the length direction of the kidney-shaped hole 311, and the deformation direction of the spring 32 is the same as the length direction of the kidney-shaped hole 311. An adjustment rod 36 is inserted into the adjustment hole 312. The hook rings at both ends of the tension spring, the spring 32 is a tension spring, and hook rings are provided at both ends thereof. One hook ring is sleeved on the end of the pressure rod 40. A limit ring 41 is provided at the end of the pressure rod 40. The limit ring 41 is used to limit the axial displacement of the pressure plate to prevent the pressure rod 40 from disengaging from the kidney-shaped hole 311 and prevent the hook ring of the tension spring from disengaging from the pressure rod 40; the other hook ring is sleeved on the adjustment rod 36. By inserting the adjustment rod 36 into different adjustment holes 312, the stretching state of the spring 32 is changed, and further the pressure when the pressure rod 40 presses the material 70 is changed. Specifically, when the elastic modulus of the spring 32 remains unchanged, the longer the distance between the two hook rings, the greater the pressure of the pressure rod 40 pressing the material 70; the shorter the distance between the two hook rings, the smaller the pressure of the pressure rod 40 pressing the material 70. The length of the spring 32 can be adjusted according to the physical properties of the material 70, and further the downward pressure of the pressure rod 40 is changed, so that the pressure rod 40 can stabilize the material 70 and at the same time reduce the damage caused by the pressure rod 40 to the surface of the material 70.

[0030] The working process of this application is as follows: The piston end of the driving cylinder 20 extends upward, the two connecting rods 33 act, drive the two swing rods 31 to rotate around the bracket 10, the pressure rod 40 at the top of the swing rod 31 moves downward, the pressure rod 40 contacts the top of the material 70, and as the pressure rod 40 continues to move, the spring 32 is stretched, and the elastic force of the spring 32 reacts on the pressure rod 40, and the pressure rod 40 moves along the kidney-shaped hole 311 and presses the material 70 to keep the material 70 stable. The piston end of the driving cylinder 20 retracts downward, the two connecting rods 33 act to drive the pressure rod 40 to move upward, the pressure rod 40 moves away from the material, and the material can move relative to the bracket 10 under the action of an external force.

[0031] A roller group 50 is provided on the bracket 10. The roller group 50 includes a number of rollers with parallel rotation axes. The number of rollers is arranged in a straight line. The roller group 50 is provided on both support plates 11. The material 70 is placed on the bracket 10, and the two roller groups 50 respectively provide support for the material 70 on both sides of the bottom of the material 70. When the pressure rod 40 does not press down, the material 70 can move along the roller group 50. During the movement of the material 70, the friction between the roller and the material 70 is rolling friction, which can reduce the friction during the movement of the material 70 and reduce the wear of the material 70.

[0032] Furthermore, an auxiliary wheel set 60 is also provided between the two roller sets 50. The auxiliary wheel set 60 is fixedly arranged on the support plate 11 through a vertical plate. The auxiliary wheel set 60 includes a number of auxiliary wheels with parallel rotation axes. The number of auxiliary wheels are arranged in a straight line. The auxiliary wheel set 60 is closer to the center of the bottom of the material 70 than the two roller sets 50. The auxiliary wheel set 60 provides support for the bottom of the material 70 to assist the roller set 50 in supporting the material 70, improving the support stability of the material 70. At the same time, the contact area at the bottom of the material 70 is increased to reduce the force on the bottom of the material 70 when the pressure rod 40 is pressed down, and reduce the damage caused to the bottom of the material 70 when the pressure rod 40 is pressed down.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A packing device, characterized in that: The invention comprises a bracket (10), a pressure rod (40), a connecting rod assembly (30) and a driving cylinder (20), wherein the driving cylinder (20) is fixedly arranged on the side of the bracket (10), the connecting rod assembly (30) comprises swing rods (31) arranged on both sides of the bracket (10) in a relative manner, the swing rods (31) are rotatably arranged on the bracket (10), one end of the swing rod (31) is provided with a waist-shaped hole (311), and the two ends of the pressure rod (40) are respectively inserted into the waist-shaped holes (311) of the two swing rods (31). A spring (32) is provided on the swing rod (31), one end of the spring (32) is connected to the pressure rod (40), and the other end of the spring (32) is connected to the swing rod (31). The other end of the swing rod (31) is movably connected to the piston end of the driving cylinder (20). The driving cylinder (20) is extended and retracted to drive the swing rod (31) to rotate, so that the pressure rod (40) rotates toward the middle of the bracket (10) or away from the middle of the bracket (10). When the pressure rod (40) presses down the material, the spring (32) is in a deformed state.

2. A packing device according to claim 1, characterized in that: It also comprises a connecting rod (33), the two ends of which are respectively hingedly connected to the piston end of the driving cylinder (20) and the end of the swing rod (31).

3. A packing device according to claim 2, characterized in that: In the connecting rod assembly (30), a synchronization rod (34) is provided between the two swing rods (31), and two ends of the synchronization rod (34) are respectively fixedly connected to the two swing rods (31).

4. A packing device according to claim 2, characterized in that: The two connecting rod assemblies (30) are symmetrically arranged at two ends of the bracket (10), and the two connecting rods (33) are both connected to the piston end of the driving cylinder (20) and are symmetrical with respect to the piston end of the driving cylinder (20).

5. A bag pressing device according to claim 1, characterized in that: The waist-shaped hole (311) is a through hole, and limiting rings (41) are provided at both ends of the pressure rod (40).

6. A bag pressing device according to claim 5, characterized in that: The waist-shaped hole (311) extends along the length direction of the swing rod (31), and the deformation direction of the spring (32) is consistent with the length direction of the waist-shaped hole (311).

7. A packing device according to claim 1, characterized in that: Roller groups (50) are arranged on both sides of the bracket (10), the roller groups (50) comprising a plurality of rollers whose rotation axes are parallel to each other and arranged along a straight line, and the two roller groups (50) respectively support the material on both sides of the bottom of the material.

8. A packing device according to claim 7, characterized in that: It also includes an auxiliary wheel group (60) arranged between the two roller groups (50), the auxiliary wheel group (60) being connected to the bracket (10), the auxiliary wheel group (60) including a plurality of auxiliary wheels whose rotation axes are parallel to each other and arranged along a straight line, and the auxiliary wheel group (60) supports the material at the bottom of the material.

9. A bag pressing device according to claim 1, characterized in that: The spring (32) is a tension spring. The swing rod (31) is provided with a plurality of adjustment holes (312) arranged at intervals. An adjustment rod (36) is provided in the adjustment hole (312). One end of the spring (32) is hung on the pressure rod (40), and the other end is hung on the adjustment rod (36).

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