A packaging bag clamping mechanism

Abstract

The utility model discloses a kind of packaging bag clamping mechanisms, including support and the left clamping arm and right clamping arm of being oppositely arranged and being set on support, left clamping arm and right clamping arm are all including two groups of staggered clamping device, clamping device includes outer chuck, outer arm rod, inner chuck, inner arm rod and drive assembly, outer chuck and inner chuck cooperate and abut clamping packaging bag, outer arm rod and outer chuck are connected, inner chuck and inner arm rod are connected;Drive assembly is connected and drives outer arm rod or inner arm rod to move, to be used for driving outer chuck and inner chuck close or away from each other.The utility model's technical scheme, by the left clamping arm and right clamping arm of being set and the clamping device of being set two groups of staggered, a total of four groups of clamping device to fix and clamp the four edges of packaging bag, to realize the position of accurate fixed packaging bag, simultaneously by adjusting the position of four clamping devices can be realized to the position of four edges of packaging bag is respectively adjusted more conveniently.

Description

Technical Field

[0001] The utility model relates to the field of packaging bag clamping devices, in particular to a packaging bag clamping mechanism. Background Art

[0002] A packaging bag clamping mechanism is an important part of packaging machinery and equipment. Its function is to clamp the packaging bag tightly at the material discharge port, so that materials can smoothly enter the packaging bag. The existing packaging bag has a cross-section similar to a Chinese character "kou" (mouth-shaped), with the left and right sides folded inward, thus having four sides. However, existing packaging bag clamping mechanisms generally cannot clamp the four sides, and thus cannot accurately adjust and fix the opening of the packaging bag, which leads to cargo damage when loading goods and inaccurate folding during sealing. Summary of the Utility Model

[0003] The main objective of the utility model is to provide a packaging bag clamping mechanism, aiming to solve the problem that existing packaging bag clamping mechanisms cannot accurately adjust and fix the opening of a packaging bag.

[0004] To achieve the above objective, the utility model provides a packaging bag clamping mechanism, which comprises a support, and a left clamping arm and a right clamping arm which are oppositely arranged on the support. Both the left clamping arm and the right clamping arm comprise two groups of clamping devices arranged in a staggered manner. The clamping device comprises an outer clamping head, an outer arm rod, an inner clamping head, an inner arm rod and a driving assembly. The outer clamping head and the inner clamping head cooperate to abut and clamp the packaging bag; the outer arm rod is connected with the outer clamping head, and the inner clamping head is connected with the inner arm rod; the driving assembly is connected to and drives the outer arm rod or the inner arm rod to move, so as to drive the outer clamping head and the inner clamping head to approach or move away from each other.

[0005] Preferably, a support guide rail is arranged on the support, and both the left clamping arm and the right clamping arm are slidably arranged on the support guide rail.

[0006] Preferably, a sliding mechanism is arranged on the support. The sliding mechanism comprises a motor, a belt pulley, a belt and a driven pulley. The belt pulley and the driven pulley are respectively arranged at two ends of the guide rail, the belt is sleeved between the belt pulley and the driven pulley, both the left clamping arm and the right clamping arm are connected to the belt, and the motor is configured to drive the belt pulley.

[0007] Preferably, among the two groups of clamping devices arranged in a staggered manner, the outer arm rod of one group of the clamping devices is connected to the driving assembly, and the inner arm rod of the other group of the clamping devices is connected to the driving assembly.

[0008] Preferably, a support plate is arranged on the support; arm rod guide rails are arranged on both the outer arm rod and the inner arm rod connected to the driving assembly, and arm rod sliders connected with the arm rod guide rails are arranged on the support plate.

[0009] Preferably, both the left and right clamping arms further include an abutment piece disposed between the outer clamp and the inner clamp.

[0010] Preferably, the abutment piece is connected to the clamping device via a telescopic mechanism, the telescopic mechanism being used to move the abutment piece.

[0011] Preferably, the device further includes an adjustment mechanism mounted on the support. The adjustment mechanism includes a connecting plate, an adjustment cylinder, an adjustment guide rail, and a transmission gear disposed between the two sets of clamping devices. The clamping devices are all slidably mounted on the adjustment guide rail, and each of the two sets of clamping devices has a gear rack on its side near the transmission gear. The gear rack is parallel to the adjustment guide rail, and the adjustment cylinder is connected to one of the clamping devices of the left clamping arm and one of the clamping devices of the right clamping arm respectively through the connecting plate.

[0012] Preferably, the connecting plate is provided with a connecting guide rail, and the clamping device connected to the connecting plate is provided with a connecting slider connected to the connecting guide rail.

[0013] Preferably, the bracket is provided with at least two sets of the left clamping arm and the right clamping arm.

[0014] In the technical solution of this utility model, a total of four clamping devices, namely a left clamping arm, a right clamping arm, and two sets of staggered clamping devices, are used to fix and clamp the four sides of the packaging bag, thereby accurately fixing the position of the packaging bag. At the same time, by adjusting the position of the four clamping devices, the position of the four sides of the packaging bag can be adjusted separately, which is more convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a packaging bag clamping mechanism according to the present invention.

[0017] Figure 2 This is a rear view structural diagram of a packaging bag clamping mechanism according to the present invention.

[0018] Figure 3 This is a cross-sectional view of a packaging bag clamping mechanism according to the present invention.

[0019] Figure 4 This is a schematic diagram of the clamping device structure of a packaging bag clamping mechanism according to the present invention.

[0020] Figure 5 This is a side view of the clamping device of a packaging bag clamping mechanism according to the present invention.

[0021] Figure 6 This is a cross-sectional view of a packaging bag clamping mechanism according to the present invention.

[0022] Explanation of icon numbers: 100. Support; 110. Support rail; 120. Sliding mechanism; 121. Motor; 123. Pulley; 124. Belt; 125. Driven wheel; 130. Support plate; 200. Left clamping arm; 300. Right clamping arm; 400. Clamping device; 410. Outer clamp; 420. Outer arm rod; 430. Inner clamp; 440. Inner arm rod; 450. Drive assembly; 460. Arm rod rail; 480. Abutment plate; 490. Telescopic mechanism; 500. Adjustment mechanism; 510. Connecting plate; 520. Adjusting cylinder; 530. Adjusting rail; 540. Transmission gear; 550. Gear rack; 511. Connecting rail; 512. Connecting slider.

[0023] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0026] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Please refer to Figures 1-6 This utility model proposes a packaging bag clamping mechanism, including a support 100 and a left clamping arm 200 and a right clamping arm 300 disposed opposite to each other on the support 100. Each left clamping arm 200 and right clamping arm 300 includes two sets of clamping devices 400 arranged in an alternating manner. Each clamping device 400 includes an outer clamp 410, an outer arm rod 420, an inner clamp 430, an inner arm rod 440, and a driving assembly 450. The outer clamp 410 and the inner clamp 430 cooperate to abut and clamp the packaging bag. The outer arm rod 420 is connected to the outer clamp 410, and the inner clamp 430 is connected to the inner arm rod 440. The driving assembly 450 is connected to and drives the outer arm rod 420 or the inner arm rod 440 to move, so as to drive the outer clamp 410 and the inner clamp 430 closer to or further away from each other.

[0030] In the technical solution of this utility model, the four sides of the packaging bag are fixed and clamped by the left clamping arm 200, the right clamping arm 300, and the two sets of clamping devices 400 arranged in an alternating manner, thereby achieving accurate fixation of the position of the packaging bag. At the same time, by adjusting the position of the four clamping devices 400, the position of the four sides of the packaging bag can be adjusted separately, which is more convenient.

[0031] Specifically, the outer clamp 410 and inner clamp 430 on the left clamping arm 200 and the right clamping arm 300 can be made in the same shape to achieve the clamping effect, reducing processing and installation costs. In small-batch production, the outer clamp 410 and inner clamp 430 can be set to be relatively opposite, which is more aesthetically pleasing and saves materials.

[0032] In another embodiment of the present invention, the bracket 100 is provided with a bracket guide rail 110, and the left clamping arm 200 and the right clamping arm 300 are both slidably disposed on the bracket guide rail 110.

[0033] Specifically, the left clamping arm 200 and the right clamping arm 300 are slidably mounted on the bracket guide rail 110, thereby facilitating the sliding adjustment of the left clamping arm 200 and the right clamping arm 300.

[0034] In another embodiment of this utility model, a sliding mechanism 120 is provided on the bracket 100. The sliding mechanism 120 includes a motor 121, a pulley 123, a belt 124, and a driven wheel 125. The pulley 123 and the driven wheel 125 are respectively disposed at both ends of the guide rail. The belt 124 is sleeved between the pulley 123 and the driven wheel 125. The left clamping arm 200 and the right clamping arm 300 are both connected to the belt 124. The motor 121 is used to drive the pulley 123.

[0035] Specifically, the motor 121 drives the pulley 123, which in turn drives the belt 124 to rotate, thereby driving the left and right clamping arms connected to the belt 124.

[0036] In another embodiment of the present invention, in the two sets of clamping devices 400 arranged in an alternating manner, the outer arm rod 420 of one set of clamping devices 400 is connected to the driving assembly, and the inner arm rod 440 of the other set of clamping devices 400 is connected to the driving assembly.

[0037] Specifically, the constant outer arm 420 or inner arm 440 is used to adjust the size and position of the packaging bag. The outer arm 420 or inner arm 440 connected to the drive assembly works in conjunction with the constant outer arm 420 or inner arm 440 to perform clamping and releasing operations.

[0038] In another embodiment of this utility model, the outer clamp 410 and inner clamp 430 of the clamping device 400 are determined based on their distance from the pneumatic device. One set of clamping devices 400 is used to clamp the edge of the packaging bag away from the driving component, the outer arm 420 is connected to the driving component, and the outer clamp 410 is a movable clamp. The other set of clamping devices 400 is used to clamp the edge of the packaging bag close to the driving component, the inner arm 440 is connected to the driving component, and the inner clamp 430 is a movable clamp.

[0039] Specifically, the size and position of the bag, and the more precise the internal edges, the easier it is to secure.

[0040] In another embodiment of the present invention, a support plate 130 is provided on the bracket 100; both the outer arm rod 420 and the inner arm rod 440, which are connected to the drive assembly, are provided with arm rod guide rails 460, and an arm rod slider is provided on the support plate 130 and connected to the arm rod guide rails 460.

[0041] Specifically, a sliding connection is achieved through the cooperation of the bracket plate 130, the arm slider, and the arm guide rail 460.

[0042] In another embodiment of the present invention, the outer boom 420 and the inner boom 440 connected to the drive assembly are both located on the side away from the ground, and both are provided with boom guide rails 460.

[0043] In another embodiment of this utility model, the driving component is configured as a cylinder, the moving end of the cylinder is connected to the outer boom 420 and the inner boom 440 which are provided with boom guide rails 460, and the fixed point of the cylinder is connected to the outer boom 420 and the inner boom 440 which are not provided with boom guide rails 460.

[0044] In another embodiment of the present invention, both the left clamping arm 200 and the right clamping arm 300 further include an abutment piece 480 disposed between the outer clamp 410 and the inner clamp 430.

[0045] Specifically, the edges of the packaging bag are separated and positioned by the abutment piece 480.

[0046] In another embodiment of the present invention, the abutment piece 480 is connected to the clamping device 400 through a telescopic mechanism 490, and the telescopic mechanism is used to drive the abutment piece 480 to move.

[0047] Specifically, the telescopic mechanism drives the abutment piece 480 to move, adapting to packaging bags in different positions.

[0048] In another embodiment of this utility model, an adjustment mechanism 500 is further included on the bracket 100. The adjustment mechanism 500 includes a connecting plate 510, an adjustment cylinder 520, an adjustment guide rail 530, and a transmission gear 540 disposed between two sets of clamping devices 400. The clamping devices 400 are all slidably disposed on the adjustment guide rail 530. Gear racks 550 are provided on the sides of the two sets of clamping devices 400 near the transmission gear 540. The gear racks 550 are parallel to the adjustment guide rail 530. The adjustment cylinder 520 is connected to one of the clamping devices 400 of the left clamping arm 200 and one of the clamping devices 400 of the right clamping arm 300 respectively through the connecting plate 510.

[0049] Specifically, the adjusting cylinder 520 drives one of the clamping devices 400 of the right clamping arm 300 to move via the connecting plate 510, and then drives the other clamping device 400 of the right clamping arm 300 to move via the transmission gear 540.

[0050] In another embodiment of this utility model, a connecting guide rail 511 is provided on the connecting plate 510, and a connecting slider 512 connected to the connecting guide rail 511 is provided on the clamping device 400 connected to the connecting plate 510.

[0051] Specifically, when the adjusting cylinder 520 and the clamping device 400 move relative to each other, a flexible connection can be achieved through the connecting guide rail 511 and the connecting slider 512, so as not to affect the relative movement while continuing to achieve the adjustment function.

[0052] In another embodiment of the present invention, at least two sets of the left clamping arm 200 and the right clamping arm 300 are provided on the bracket 100.

[0053] Specifically, two sets of left clamping arms 200 and right clamping arms 300 are provided. The two sets of left clamping arms 200 and right clamping arms 300 can share some components, such as adjusting cylinder 520 or sliding mechanism 120, which saves materials and costs, and at the same time increases production efficiency.

[0054] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A packaging bag clamping mechanism, characterized in that, The device includes a support frame and left and right clamping arms mounted on the support frame. Each left and right clamping arm includes two sets of staggered clamping devices. Each clamping device includes an outer clamp, an outer arm rod, an inner clamp, an inner arm rod, and a drive assembly. The outer and inner clamps cooperate to abut and clamp the packaging bag. The outer arm rod is connected to the outer clamp, and the inner clamp is connected to the inner arm rod. The drive assembly is connected to and drives the outer or inner arm rod to move, thereby moving the outer and inner clamps closer to or further away from each other.

2. The packaging bag clamping mechanism as described in claim 1, characterized in that, The bracket is provided with a bracket guide rail, and the left clamping arm and the right clamping arm are slidably mounted on the bracket guide rail.

3. The packaging bag clamping mechanism as described in claim 2, characterized in that, The bracket is equipped with a sliding mechanism, which includes a motor, a pulley, a belt, and a driven wheel. The pulley and the driven wheel are respectively located at both ends of the guide rail. The belt is sleeved between the pulley and the driven wheel. The left clamping arm and the right clamping arm are both connected to the belt. The motor is used to drive the pulley.

4. The packaging bag clamping mechanism as described in claim 1, characterized in that, In the two sets of clamping devices arranged in an alternating manner, the outer arm of one set of clamping devices is connected to the drive assembly, and the inner arm of the other set of clamping devices is connected to the drive assembly.

5. A packaging bag clamping mechanism as described in claim 4, characterized in that, The bracket is provided with a bracket plate; both the outer boom and the inner boom connected to the drive assembly are provided with boom guide rails, and the bracket plate is provided with a boom slider connected to the boom guide rails.

6. The packaging bag clamping mechanism as described in claim 1, characterized in that, Both the left and right clamping arms also include an abutment piece disposed between the outer clamp and the inner clamp.

7. A packaging bag clamping mechanism as described in claim 6, characterized in that, The abutment piece is connected to the clamping device via a telescopic mechanism, which is used to move the abutment piece.

8. A packaging bag clamping mechanism as described in any one of claims 1-7, characterized in that, It also includes an adjustment mechanism mounted on the bracket. The adjustment mechanism includes a connecting plate, an adjustment cylinder, an adjustment guide rail, and a transmission gear mounted between the two sets of clamping devices. The clamping devices are all slidably mounted on the adjustment guide rail. The two sets of clamping devices are provided with gear racks on their sides near the transmission gears. The gear racks are parallel to the adjustment guide rail. The adjustment cylinder is connected to one clamping device of the left clamping arm and one clamping device of the right clamping arm through the connecting plate.

9. A packaging bag clamping mechanism as described in claim 8, characterized in that, The connecting plate is provided with a connecting guide rail, and the clamping device connected to the connecting plate is provided with a connecting slider connected to the connecting guide rail.

10. A packaging bag clamping mechanism as described in claim 8, characterized in that, The bracket is provided with at least two sets of left and right clamping arms.

Images