Feed discharging device and clamp thereof

Abstract

The utility model discloses a feed discharging device and a clamp thereof. The clamp comprises a connecting piece, two clamping parts and a driving part. And the connecting piece is fixedly connected with a feed discharging device. The two clamping parts are distributed in a mirror symmetry mode and hinged to the connecting piece. The clamping part is provided with a clamping piece. The driving component is connected with the two clamping components and drives the two clamping components to get close to each other so as to drive the two clamping components to clamp the packaging bag. The clamping piece comprises a flexible steel belt and a rubber pad, the rubber pad is connected with the side wall face of the flexible steel belt in a matched mode, and the rubber pad is used for making contact with a packaging bag. According to the improved technical scheme, by optimizing the material and the structure of the clamping piece, the durability and the practicability of the clamp are remarkably improved, even under the working condition of frequent opening and closing, the clamp can still keep stable clamping force, and it is ensured that a packaging bag is firmly fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to feed processing equipment technical field especially relates to a feed discharging device and clamp thereof. BACKGROUND

[0002] In the modern feed production process, the packaging link is one of the key steps to ensure product quality, reduce production cost and improve production efficiency. However, the traditional feed packaging method still has many deficiencies, especially in the bagging link. The traditional bagging method mainly includes manually holding the bag opening or fixing it at the discharge opening by binding. Both methods have obvious defects: tedious preparation, low efficiency and loose binding leading to feed leakage, etc. These problems affect the overall efficiency of feed production.

[0003] The Chinese utility model patent with publication number CN206969093U discloses a clamping device and a feed production equipment. The clamping device includes a discharge channel for discharging feed, a clamp assembly for clamping a feed bag and a driving mechanism for driving the clamp assembly to move. The clamp assembly includes a first clamp assembly and a second clamp assembly, which are symmetrically arranged at both ends of the discharge channel. The first clamp assembly includes a first bag pressing piece, and the second clamp assembly further includes a second bag pressing piece. The first bag pressing piece and the second bag pressing piece of the first clamp assembly and the second clamp assembly are driven by the driving mechanism to cooperate with each other to clamp the feed bag.

[0004] In actual production process, the clamping device needs to be frequently started and stopped. The bag pressing parts of the prior art are made of flexible material, which has the following problems: frequent deformation can cause the elastic modulus of the material to decrease. This means that after a large number of clamping operations, the bag pressing parts may not return to the initial state, resulting in insufficient clamping force and inability to effectively fix the feed bag. Replacing parts increases the maintenance cost and downtime of the equipment, and if it fails during operation, the feed bag will fall, causing material waste and ground pollution. SUMMARY

[0005] To solve the technical problems existing in the prior art, the purpose of the utility model is to provide a feed discharging device and clamp thereof. The elastic modulus of the flexible steel belt is relatively high, and it can withstand repeated clamping and releasing operations without being easily permanently deformed. In contrast, the traditional flexible material is prone to failure after frequent use and needs to be replaced frequently.

[0006] The purpose of the utility model is achieved by the following technical solutions:

[0007] In a first aspect, the utility model provides a clamp for clamping a packaging bag in a feed discharging device, which includes:

[0008] The connecting piece is fixedly connected with the feed discharging device;

[0009] Two clamping components are symmetrically arranged, and the two clamping components are respectively hinged to the connecting piece, and the two clamping components can swing around the hinge;

[0010] A driving component is connected to the two clamping components, and the driving component drives the two clamping components to approach each other to drive the two clamping components to clamp the packaging bag;

[0011] The clamping component comprises a flexible steel belt and a rubber pad, the rubber pad is connected to the side wall surface of the flexible steel belt, and the rubber pad is used to contact the packaging bag.

[0012] In combination with the first aspect, the utility model provides a first preferred implementation of the first aspect, and specifically, the outer contour shape of the clamping component is arc-shaped, and the two end portions of the clamping component are fixedly connected to the clamping component.

[0013] In combination with the first aspect, the utility model provides a second preferred implementation of the first aspect, and specifically, the rubber pad has a tightly fitted hydrogenated nitrile rubber layer and a hot melt type damping glue layer, and the hot melt type damping glue layer is bonded to the flexible steel belt.

[0014] In combination with the first aspect, the utility model provides a third preferred implementation of the first aspect, and specifically, the clamping component comprises:

[0015] Two swing arms are symmetrically arranged, and the two swing arms are respectively hinged to the connecting piece, and the driving component is connected to the two swing arms.

[0016] A fixed shaft is fixedly connected to the two swing arms at two ends thereof.

[0017] Two clamping arms are symmetrically arranged, and the upper end portions of the two clamping arms are fixedly connected to the shaft body of the fixed shaft, and the lower end portions of the two clamping arms are respectively fixedly connected to the two end portions of the clamping component.

[0018] In combination with the first aspect, the utility model provides a fourth preferred implementation of the first aspect, and specifically, the lower end portion of the clamping arm is bolted to a clamping block, and the clamping block and the clamping arm fixedly clamp the clamping component.

[0019] In combination with the first aspect, the utility model provides a fifth preferred implementation of the first aspect, and specifically, the number of the driving components is two, and the driving component comprises a pneumatic cylinder, a hinge seat and a double elbow joint.

[0020] The hinge seat is bolted on the cylinder body of the air cylinder, and the hinge seat is hinged with the swing arm of the one-side clamping component;

[0021] The double elbow joint is threaded on the rod end of the air cylinder, and the double elbow joint is hinged with the swing arm of the mirror-symmetrical other-side clamping component.

[0022] In a second aspect, the utility model also provides a feed discharging device, the feed discharging device includes:

[0023] Device main part, the lower surface of device main part is provided with hopper, the lower end part of hopper is used for the sleeve joint package bag;

[0024] Clamp, the clamp is first aspect the clamp, the connecting piece of clamp is fixedly connected on the outer wall of hopper, and the clamp is firmly held the package bag on hopper through the clamping piece.

[0025] In combination with the second aspect, the utility model also provides a first preferred implementation mode of the second aspect, specifically, the device main part includes:

[0026] Frame;

[0027] Machine shell, the machine shell is fixedly connected the top of frame;The upper end part of machine shell is provided with feed pipe spare, and the hopper is fixedly connected at the lower end part of machine shell, and the hopper and the feed pipe spare are mutually staggered in horizontal direction;

[0028] Wherein, the machine shell is provided with feed conveyor, and the feed conveyor is used to convey the feed that falls through the feed pipe spare to hopper.

[0029] In combination with the second aspect, the utility model also provides a second preferred implementation mode of the second aspect, and the lower end part of machine shell is also provided with collection hopper, the collection hopper is located below the feed conveyor, and the collection hopper is arranged in correspondence with the feed pipe spare.

[0030] In combination with the second aspect, the utility model also provides a third preferred implementation mode of the second aspect, and the feed discharging device further includes package bag conveyor, and the package bag conveyor is arranged directly below the hopper;

[0031] The both sides of package bag conveyor are respectively provided with limit guardrail.

[0032] Compared with the prior art, the utility model at least has the following beneficial effects:

[0033] 1. The utility model provides a clamp for clamping packaging bag in feed discharging device, the clamp includes connecting piece, two clamping parts and drive part. The connecting piece fixed connection feed discharging device. Two clamping parts are mirror image symmetry distribution setting, two clamping parts are hinged respectively the connecting piece, and two clamping parts can swing around the hinge; The clamping part has clamping piece. Drive part is connected two clamping parts respectively, and drive part drives two clamping parts each other close, to drive two clamping pieces clamping packaging bag. Among them, the clamping piece includes flexible steel band and rubber pad, the rubber pad is adapted to connect the lateral wall surface of flexible steel band, and the rubber pad is used for contacting packaging bag.

[0034] The core of the improved technical solution is the structural design of the clamp. The clamp is composed of a connecting piece, two clamping parts, and a drive part. The connecting piece is fixed on the feed discharging device and serves as a support and positioning function. The two clamping parts are mirror image symmetrically distributed and connected to the connecting piece through a hinged manner, allowing them to swing around the hinge point. This design allows the clamping parts to open and close under the action of the drive part, thereby achieving clamping and releasing of the packaging bag.

[0035] The key of the clamping part lies in the design of its clamping piece. The clamping piece is composed of a flexible steel band and a rubber pad. The flexible steel band has a certain elastic deformation ability, which can provide stable support force during clamping while maintaining a certain flexibility to adapt to packaging bags of different sizes and shapes. The rubber pad is installed on the lateral wall surface of the flexible steel band and directly contacts the packaging bag. The softness and friction of the rubber pad can effectively clamp the packaging bag, preventing it from slipping or falling off.

[0036] The flexible steel band has a high elastic modulus and can withstand repeated clamping and releasing operations without permanent deformation. In contrast, traditional flexible materials tend to fail after frequent use and require frequent replacement of parts. This improved technical solution optimizes the material and structure of the clamping piece, significantly improving the durability and practicality of the clamp. Even in frequent on-off working conditions, the clamp can still maintain stable clamping force, ensuring that the packaging bag is securely fixed. This reduces the maintenance cost and downtime of the equipment.

[0037] 2. The utility model also provides a feed discharging device, which includes all the technical solutions of the above-mentioned clamp and has the technical effects of the above-mentioned clamp. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a perspective structural schematic view of the feed discharging device of the utility model;

[0039] Figure 2 It is a perspective structural schematic view of the clamp of the feed discharging device of the utility model;

[0040] Figure 3 It is the schematic diagram of layer structure of the clamping piece of the feed discharging device of the utility model;

[0041] Figure 4 It is the schematic diagram of cross section of the feed discharging device of the utility model;

[0042] In the drawing,

[0043] 100 - frame;

[0044] 200 - machine shell, 210 - feed pipe, 220 - feed conveyor, 230 - discharge hopper, 240 - collecting hopper;

[0045] 300 - clamp, 310 - driving part, 311 - cylinder, 312 - hinged seat, 313 - double elbow joint, 320 - clamping part, 321 - swing arm, 322 - fixed shaft, 323 - clamping arm, 324 - clamping piece, 3241 - hydrogenated nitrile rubber layer, 3242 - hot melt type damping glue layer;

[0046] 400 - packaging bag. DETAILED DESCRIPTION

[0047] In order to facilitate understanding of the utility model, the technical scheme and advantages of the utility model are further described in detail below in combination with the drawings and examples. The mechanisms or methods not described in the utility model can refer to the prior art. The specific structure and characteristics of the utility model are described below in an exemplary manner, which should not constitute any limitation on the utility model. At the same time, any one of the technical features mentioned below (including implied or disclosed), as well as any one of the technical features directly shown or implied in the drawings, can continue to be combined or deleted between these technical features, thereby forming more other embodiments that can not be directly or indirectly mentioned in the utility model. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0048] As shown in Figures 1-4 The embodiment provides a feed discharging device and a preferred structure of a clamp thereof.

[0049] As shown in Figure 1 The utility model provides a kind of feed discharging device, and feed discharging device includes device main body and clamp 300.The main function of feed discharging device is to receive the feed transmitted by feed production line, and realizes the bagging of feed. Among them, device main body is used to receive feed, and clamp 300 for being set on device main body is used to clamp packaging bag 400 on the discharge hopper 230 of device main body, and carries out the bagging of feed.

[0050] In a specific implementation, the device body includes a rack 100 and a casing 200, and the casing 200 is fixedly connected to the top of the rack 100. The upper end of the casing 200 is provided with a feeding pipe 210, and a lower hopper 230 is fixedly connected to the lower end of the casing 200. The lower hopper 230 and the feeding pipe 210 are arranged staggered in the horizontal direction. The casing 200 is provided with a feed conveyor 220, which is used to convey the feed falling through the feeding pipe 210 to the lower hopper 230.

[0051] The rack 100 serves as the support structure of the entire device, ensuring the stability and firmness of the device. The casing 200 is fixedly connected to the top of the rack 100, and its upper end is provided with a feeding pipe 210 for receiving feed transmitted from the feed production line. The lower hopper 230 is fixedly connected to the lower end of the casing 200, which is used to guide the feed into the packaging bag 400. The feeding pipe 210 and the lower hopper 230 are arranged staggered in the horizontal direction, which can optimize the feed conveying path and avoid the problem of accumulation or blockage when the feed directly falls from the feeding pipe 210 into the lower hopper 230. The casing 200 is provided with a feed conveyor 220, which is the core component of the device body. Its function is to stably and efficiently convey the feed falling through the feeding pipe 210 to the lower hopper 230, ensuring that the feed can smoothly enter the packaging bag 400 for bagging operation.

[0052] The technical principle of the device body is mainly reflected in the process of receiving, conveying and guiding the feed. The feed from the production line enters the casing 200 through the feeding pipe 210. Due to the staggered arrangement of the feeding pipe 210 and the lower hopper 230 in the horizontal direction, the feed will not directly fall into the lower hopper 230, but first fall on the feed conveyor 220. The feed conveyor 220 conveys the feed from below the feeding pipe 210 to the position of the lower hopper 230 through mechanical transmission devices (such as motor-driven conveyor belts or screw conveying devices), thereby realizing the smooth transition and uniform feeding of the feed. This design effectively avoids the problems of accumulation, blockage or uneven feeding of the feed during the feeding process, ensuring that the feed can smoothly and stably enter the lower hopper 230 and flow into the packaging bag 400, improving the efficiency and reliability of the entire feed bagging process.

[0053] In a preferred implementation, the lower end of the casing 200 is also provided with a collection hopper 240, which is located below the feed conveyor 220 and corresponds to the feeding pipe 210 in the vertical direction. The collection hopper 240 is an important component of the lower end of the casing 200, mainly used to collect the extra feed falling from the feed conveyor 220, preventing feed waste and pollution of the surrounding environment.

[0054] In a specific implementation, as shown in Figure 4 The feed outfeed device further includes a packaging bag 400 conveyor arranged directly below the lower hopper 230. Limiting guardrails are arranged on both sides of the packaging bag 400 conveyor. The packaging bag 400 conveyor is an important component of the feed outfeed device, which conveys the packaging bag 400 filled with feed to the next process after bagging is completed. The packaging bag 400 conveyor adopts a common belt conveyor. To prevent the packaging bag 400 from deviating or toppling during the conveying process, limiting guardrails are arranged on both sides of the conveyor. The height of the limiting guardrails is adjusted according to the height of the packaging bag 400 to ensure that the packaging bag 400 remains stable during the conveying process. The guardrails can be designed in a fixed or adjustable manner to adapt to packaging bags 400 of different sizes.

[0055] In the present embodiment, the collecting hopper 240 is generally designed as an inverted funnel shape or a square groove. The upper end has a large opening to facilitate the reception of the feed falling from the feed conveyor 220. The lower end has a small opening to guide the collected feed to the feed pipe 210 or a designated location. The size is optimized according to the size of the feed conveyor 220 and the falling range of the feed to ensure effective collection of the falling feed.

[0056] In a specific implementation, the collecting hopper 240 is made of the same material as the lower hopper 230, such as stainless steel or aluminum alloy, which has high strength, corrosion resistance, and easy cleaning characteristics. The surface is smooth, facilitating the sliding of the feed, while preventing feed residue and bacterial growth.

[0057] In the present embodiment, the lower hopper 230 is divided into an upper section and a lower section. The upper section of the lower hopper 230 is a cuboid structure and is fixedly connected to the machine housing 200. The lower hopper 230 is generally funnel-shaped or conical. The upper end has a large opening to facilitate the reception of the feed conveyed from the device main body, and the lower end has a small opening to facilitate the concentration of the feed into the packaging bag 400. The inner wall of the lower hopper 230 is designed as a smooth slope. After the feed falls from the feed conveyor 220, it can smoothly slide into the packaging bag 400 along the slope. The angle of the slope is optimized according to the flowability of the feed to ensure that the feed does not stagnate in the lower hopper 230.

[0058] Specifically, the upper section of the lower hopper 230 is used to install the clamp 300. The connecting piece of the clamp 300 is fixedly connected to the outer wall of the upper section of the lower hopper 230. The clamp 300 stably clamps the packaging bag 400 on the lower hopper 230 through the clamping piece 324.

[0059] As shown in Figure 2 and Figure 3The core improvement of the utility model lies in providing an optimized clamp 300 structure design. The clamp 300 includes a connecting piece, two clamping components 320 and a driving component 310. The connecting piece is fixedly connected to the feed discharging device, such as welding, bolt connection. The two clamping components 320 are mirror-symmetrically distributed and arranged, and the two clamping components 320 are respectively hingedly connected to the connecting piece, and the two clamping components 320 can swing around the hinge joints; the clamping component 320 is provided with a clamping piece 324. The driving component 310 is respectively connected to the two clamping components 320, and the driving component 310 drives the two clamping components 320 to approach each other to drive the two clamping pieces 324 to clamp the packaging bag 400. Among them, the clamping piece 324 includes a flexible steel belt and a rubber pad, the rubber pad is adaptively connected to the side wall surface of the flexible steel belt, and the rubber pad is used for contacting the packaging bag 400.

[0060] The core of the improved technical scheme lies in the structure design of the clamp 300. The clamp 300 is composed of a connecting piece, two clamping components 320 and a driving component 310. The connecting piece is fixed on the feed discharging device and plays a supporting and positioning role. The two clamping components 320 are mirror-symmetrically distributed and connected to the connecting piece through a hinged mode, so that they can swing around the hinge joints. This design allows the clamping component 320 to realize opening and closing actions under the action of the driving component 310, thereby realizing the clamping and releasing of the packaging bag 400. The key of the clamping component 320 lies in the design of the clamping piece 324 thereof. The clamping piece 324 is composed of a flexible steel belt and a rubber pad. The flexible steel belt has a certain elastic deformation capacity and can provide stable supporting force in the clamping process, while maintaining a certain flexibility to adapt to packaging bags 400 of different sizes and shapes. The rubber pad is installed on the side wall surface of the flexible steel belt and directly contacts the packaging bag 400. The softness and friction of the rubber pad can effectively clamp the packaging bag 400 to prevent it from slipping or falling off.

[0061] In the working process, the driving component 310 drives the two clamping components 320 to approach each other through a mechanical or hydraulic mode. The packaging bag 400 is clamped on the feed discharging device by the two clamping pieces 324, and under the joint action of the flexible steel belt and the rubber pad, the clamp 300 can firmly fix the packaging bag 400 due to the support of the flexible steel belt and the rubber pad and the friction of the rubber pad, ensuring that the feed will not leak during bagging. After completing the bagging, the driving component 310 drives the clamping components 320 to separate and release the packaging bag 400.

[0062] In specific implementation, the outer contour shape of the clamping piece 324 is arc-shaped, and the two end portions of the clamping piece 324 are fixedly connected to the clamping component 320. The outer contour of the clamping piece 324 is designed to be arc-shaped, and this shape is more fitted to the surface shape of the packaging bag 400.

[0063] In specific implementation, as shown in the figure, Figure 3As shown, the rubber pad has a tightly fitted hydrogenated nitrile rubber layer 3241 and a hot melt type damping glue layer 3242, and the hot melt type damping glue layer 3242 is bonded to the flexible steel strip. The outer side adopts a hydrogenated nitrile rubber layer 3241, and the hydrogenated nitrile rubber (HNBR) is a high-performance synthetic rubber with excellent oil resistance, wear resistance and mechanical strength. The hot melt type damping glue layer 3242 is tightly combined with the flexible steel strip after being melted by heating, forming a firm bonding layer. This composite layer structure significantly improves the durability and service life of the clamping part 324.

[0064] In specific implementation, as shown in the figure, Figure 2 The clamping part 320 includes:

[0065] Two swing arms 321 are symmetrically arranged, and each swing arm 321 is hingedly connected to the driving part 310. This symmetrical design ensures the balance and consistency of the clamping action. The swing arm 321 is the main moving part of the clamping part 320, which can swing around the hinge point through the driving of the driving part 310, thereby driving the clamping part 324 to realize the clamping or loosening action.

[0066] A fixed shaft 322 is fixedly connected to the two swing arms 321 at both ends. The two ends of the fixed shaft 322 are fixedly connected to the two swing arms 321, and the shaft body of the fixed shaft 322 is connected to the upper end of the clamping arm 323. The function of the fixed shaft 322 is to transmit the movement of the swing arm 321 to the clamping arm 323, ensuring that the clamping arm 323 can move synchronously, thereby realizing the clamping or loosening of the clamping part 324.

[0067] Two clamping arms 323 are symmetrically arranged, and the upper ends of the two clamping arms 323 are fixedly connected to the shaft body of the fixed shaft 322, and the lower ends of the two clamping arms 323 are fixedly connected to the two ends of the clamping part 324. The clamping arm 323 is the execution part of the clamping part 320, which can drive the clamping part 324 to realize the clamping or loosening action through the driving of the swing arm 321 and the fixed shaft 322.

[0068] In specific implementation, the swing arm 321, the fixed shaft 322 and the clamping arm 323 are fixed by welding.

[0069] In specific implementation, the lower end of the clamping arm 323 is bolted to a clamping block, and the clamping block and the clamping arm 323 fix the clamping part 324. The stud is threaded through the clamping block, the clamping part 324 and the lower end of the clamping arm 323, and then locked with a nut. This reliable fastening method is convenient for replacing the clamping part 324.

[0070] As shown in the figure, Figure 2As shown, the number of driving components 310 is two, and the driving component 310 includes a cylinder 311, a hinged seat 312, and a double elbow joint 313. The hinged seat 312 is bolted to the cylinder body of the cylinder 311, and the hinged seat 312 is hinged to the swing arm 321 of the one-side clamping component 320. The double elbow joint 313 is threaded to the rod end of the cylinder 311, and the double elbow joint 313 is hinged to the swing arm 321 of the mirror-symmetrical other-side clamping component 320.

[0071] The design of the driving component 310 further optimizes the clamping action and control accuracy of the clamp 300. By adopting two driving components 310 (one for each clamping component 320) and combining the structure of the cylinder 311, the hinged seat 312, and the double elbow joint 313, the clamp 300 can achieve more accurate and stable clamping operation. The double elbow joint 313 is used to connect the piston rod of the cylinder 311 and the swing arm 321 of the other-side clamping component 320. It is threaded to the rod end of the cylinder 311 and can transmit the extension and retraction action of the cylinder 311 to the other-side swing arm 321, realizing the synchronous movement of the two-side clamping components 320. The double elbow joint 313 is threaded to the rod end of the cylinder 311 and hinged to the swing arm 321 of the mirror-symmetrical other-side clamping component 320. This design ensures that the two-side clamping components 320 can move synchronously during clamping, and the clamping force is evenly distributed.

[0072] Specifically, the implementation of the clamping action is as follows:

[0073] When the piston rod of the cylinder 311 extends, the two-side swing arms 321 simultaneously swing outward through the transmission of the hinged seat 312 and the double elbow joint 313, driving the clamping arms 323 and the clamping pieces 324 to release the packaging bag 400.

[0074] When the piston rod of the cylinder 311 retracts, the two-side swing arms 321 swing inward, and the clamping arms 323 and the clamping pieces 324 clamp the packaging bag 400, completing the clamping action.

[0075] The above embodiments are only preferred embodiments of the present utility model, and cannot be used to limit the scope of protection of the present utility model. For ordinary skilled persons in the art, it can be understood that various changes, modifications, replacements, and variations can be made to these embodiments without departing from the principles and spirits of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A clamp for holding packaging bags in a feed dispensing device, characterized in that, The clamp includes: The connector is fixedly connected to the feed discharging device; Two clamping components are arranged in a mirror-symmetrical manner, and each clamping component is hinged to the connecting member. Both clamping components can swing around the hinge point; each clamping component has a clamping element. A driving component is connected to two clamping components respectively. The driving component drives the two clamping components to move closer to each other so as to clamp the packaging bag with the two clamping components. The clamping component includes a flexible steel strip and a rubber pad. The rubber pad is adapted to connect to the side wall of the flexible steel strip and is used to contact the packaging bag.

2. The clamp as described in claim 1, characterized in that: The outer contour of the clamping member is arc-shaped, and the two ends of the clamping member are fixedly connected to the clamping component.

3. The clamp as described in claim 1, characterized in that: The rubber pad has a tightly fitted hydrogenated nitrile rubber layer and a hot-melt damping adhesive layer, the hot-melt damping adhesive layer being bonded to the flexible steel strip.

4. A clamp as described in claim 1, characterized in that, The clamping component includes: Two swing arms are arranged in a mirror-symmetrical manner, and each swing arm is hinged to the connecting member. The driving component is connected to the two swing arms. A fixed shaft, with two swing arms fixedly connected to its two ends respectively; Two clamping arms are arranged in a mirror-symmetrical manner. The upper ends of the two clamping arms are fixedly connected to the shaft of the fixed shaft, and the lower ends of the two clamping arms are respectively fixed to the two ends of the clamping member.

5. A clamp as described in claim 4, characterized in that: A clamping block is bolted to the lower end of the clamping arm, and the clamping block and the clamping arm fix the clamping member.

6. A clamp as described in claim 4, characterized in that: The number of drive components is two, and the drive components include a cylinder, a hinge seat and a double elbow joint; The hinge seat is bolted to the cylinder body of the cylinder, and the hinge seat is hinged to the swing arm of the clamping component on one side. The double elbow joint is threaded to the rod end of the cylinder, and the double elbow joint is hinged to the swing arm of the clamping component on the other side, which is mirror-symmetrical.

7. A feed discharging device, characterized in that, The feed discharging device includes: The device body has a feeding hopper on its lower surface, and the lower end of the feeding hopper is used to receive a packaging bag. The clamp is the clamp according to any one of claims 1 to 6, wherein the connecting member of the clamp is fixedly connected to the outer wall of the hopper, and the clamp securely holds the packaging bag on the hopper through the clamping member.

8. The feed discharging device as described in claim 7, characterized in that, The main body of the device includes: frame; The machine housing is fixedly connected to the top of the frame; the upper end of the machine housing is provided with a feed pipe, and the hopper is fixedly connected to the lower end of the machine housing. The hopper and the feed pipe are staggered from each other in the horizontal direction. The housing is equipped with a feed conveyor, which is used to transport the feed falling through the feed pipe to the discharge hopper.

9. A feed discharging device as described in claim 8, characterized in that: The lower end of the housing is also provided with a collection hopper, which is located below the feed conveyor and is arranged vertically and vertically corresponding to the feed pipe.

10. A feed discharging device as described in claim 9, characterized in that: The feed discharging device also includes a packaging bag conveyor, which is located directly below the feed hopper; Limit guardrails are installed on both sides of the packaging bag conveyor.

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