Blanking maintaining device

Abstract

The utility model discloses a blanking maintaining device, and relates to the technical field of automation equipment. The discharging maintaining device comprises a support, a first clamping assembly, a first lifting mechanism, a bag pulling assembly and a second lifting mechanism. The support is provided with a feeding cylinder. The first clamping assembly is rotationally arranged on the support. The first lifting mechanism is connected with the bracket; the bag pulling assembly is movably arranged on the edge of the charging barrel; the second lifting mechanism is connected with the bag pulling assembly; when the first lifting mechanism drives the support to descend, the charging barrel extends into a bag opening of the ton bag, and when the second lifting mechanism drives the bag pulling assembly to descend, the bag pulling assembly is connected with the edge of the bag opening of the ton bag in a clamped mode. The first clamping assembly is used for clamping a bag opening of the ton bag to the outer wall of the charging barrel after the charging barrel stretches into the bag opening of the ton bag. According to the technical scheme, continuous production takt is guaranteed, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a material feeding and maintaining device. Background Art

[0002] Ton bags are a kind of flexible transport packaging container, which is moisture-proof, dust-proof, radiation-resistant, firm and safe, and has sufficient structural strength. As container bags are easy to load and unload, and the loading and unloading efficiency is significantly improved, they have developed rapidly in recent years.

[0003] In the existing technology, some production lines use automatic packaging machines to realize automatic loading of ton bags. However, after the loading of the ton bags is completed, the bag mouth of the ton bag needs to be flattened manually so that the clamps of the back-end equipment can clamp the bag mouth of the ton bag. Due to the proficiency of manual operation, it is impossible to maintain a continuous production rhythm. The clamps of the back-end equipment usually need to wait for the ton bag mouth to be flattened, which has low production efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a material unloading maintenance device, aiming to solve the technical problem in the prior art that after the ton bag is loaded, the bag mouth of the ton bag needs to be manually flattened, and a continuous production rhythm cannot be maintained, resulting in low production efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a material feeding and maintaining device, and the material feeding and maintaining device comprises:

[0006] A support, wherein the support carries a material barrel;

[0007] a first clamping assembly, the first clamping assembly being rotatably disposed on the bracket;

[0008] a first lifting mechanism, the first lifting mechanism being connected to the bracket;

[0009] A bag pulling assembly, the bag pulling assembly being movably arranged at the edge of the barrel;

[0010] a second lifting mechanism, the second lifting mechanism being connected to the bag pulling assembly;

[0011] Among them, when the first lifting mechanism drives the bracket to descend, the barrel is inserted into the bag opening of the ton bag; when the second lifting mechanism drives the bag pulling assembly to descend, the bag pulling assembly is clamped with the edge of the bag opening of the ton bag; the first clamping assembly is used to clamp the bag opening of the ton bag on the outer wall of the barrel after the barrel is inserted into the bag opening of the ton bag.

[0012] In one embodiment, the bag pull assembly comprises:

[0013] A driving module, wherein the second lifting mechanism is connected to the driving module;

[0014] Two bag-pulling clamps, which are arranged oppositely on two sides of the barrel;

[0015] A connecting rod, one end of which is connected to the bag pulling clamp, and the other end of which is connected to the driving module, and the number of the connecting rods is consistent with the bag pulling clamp and is arranged in a one-to-one correspondence;

[0016] The driving module is used to drive the connecting rod to move and drive the bag pulling clamp to move away from or close to the barrel.

[0017] In one embodiment, the bag clamp comprises:

[0018] A guide rod, one end of the connecting rod is connected to the driving module, and the other end is connected to the guide rod;

[0019] A pull rod, the pull rod being arranged on one side of the guide rod;

[0020] When the bag clamp is lowered, the guide rod is clamped on the inner side of the bag opening of the ton bag, and the pull rod is clamped on the outer side of the bag opening of the ton bag.

[0021] In one embodiment, the connecting rod has an avoidance groove, and when the driving module drives the connecting rod to move toward a side close to the barrel, the avoidance groove fits against the periphery of the outer wall of the barrel.

[0022] In one embodiment, the driving module is a bidirectional linear module, and the two bag pulling clamps are respectively arranged on movable seats at both ends of the bidirectional linear module, and the bidirectional linear module is used to drive the two bag pulling clamps to move toward or away from each other.

[0023] In one embodiment, the first clamping assembly comprises:

[0024] Two first clamping arms, the two first clamping arms are arranged oppositely on two sides of the barrel;

[0025] A first rotating member, wherein the first rotating member is disposed on the bracket, a driving end of the first rotating member is connected to the first clamping arm, and the number of the first rotating members is consistent with the number of the first clamping arms and is disposed in a one-to-one correspondence;

[0026] The first rotating member is used to drive the first clamping arm to rotate, and the first clamping arm moves toward a side away from or close to the barrel when rotating.

[0027] In one embodiment, the first clamping arm comprises:

[0028] a first connecting portion;

[0029] a first clamping portion, wherein one end of the first connecting portion is connected to the first rotating member, and the other end is connected to the first clamping portion;

[0030] Wherein, the first clamping portion is arc-shaped. When the two first clamping portions move toward the side close to the barrel until they abut against the barrel, the two first clamping portions abut and splice to form an annular clamping structure that matches the shape of the barrel.

[0031] In one embodiment, the material unloading and maintaining device further comprises a second clamping assembly, the second clamping assembly is rotatably disposed on the bracket, and the second clamping assembly is located on top of the first clamping assembly;

[0032] The second clamping assembly is used to rotate and clamp the bag opening of the ton bag on the outer wall of the barrel after the first clamping assembly clamps the bag opening of the ton bag on the outer wall of the barrel.

[0033] In one embodiment, the second clamping assembly comprises:

[0034] Two second clamping arms, the two second clamping arms are arranged oppositely on two sides of the barrel;

[0035] A second rotating member, wherein the second rotating member is disposed on the bracket, a driving end of the second rotating member is connected to the second clamping arm, and the number of the second rotating members is consistent with the number of the second clamping arms and is disposed in a one-to-one correspondence;

[0036] The second rotating member is used to drive the second clamping arm to rotate, and the second clamping arm moves toward a side away from or close to the barrel when rotating.

[0037] In one embodiment, the second clamping arm comprises:

[0038] a second connecting portion;

[0039] A second clamping portion, wherein one end of the second connecting portion is connected to the second rotating member, and the other end is connected to the second clamping portion, and the second clamping portion is located above the first clamping portion.

[0040] The technical solution of the utility model inserts the barrel and the bag-pulling assembly into the bag mouth of the ton bag through the first lifting mechanism and the second lifting mechanism, and clamps the bag mouth of the ton bag on the outer wall of the barrel through the first clamping assembly during the unloading process. After unloading, the bag mouth of the ton bag is flattened by moving the bag-pulling assembly to facilitate clamping by the clamp of the back-end equipment, thereby ensuring continuous production rhythm and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0042] Figure 1 This is a schematic diagram of the structure of the first embodiment of the material feeding and maintaining device of the utility model from the top perspective;

[0043] Figure 2 It is a structural schematic diagram of the first embodiment of the material feeding and maintaining device of the utility model from the bottom perspective;

[0044] Figure 3 This is a schematic diagram of the structure of the second embodiment of the material feeding and maintaining device of the utility model from the top perspective;

[0045] Figure 4 It is a structural schematic diagram of the second embodiment of the material feeding and maintaining device of the utility model from the bottom perspective;

[0046] Figure 5 This is a front view of the material feeding and maintaining device of the utility model;

[0047] Figure 6 It is a structural schematic diagram of the bag pulling assembly in the material feeding and maintaining device of the utility model;

[0048] Figure 7 It is a schematic diagram of the bag pulling assembly in the material feeding and maintaining device of the utility model when clamping a ton bag.

[0049] Description of Figure Numbers:

[0050] Label name Label name 10 Pull bag assembly 11 Drive components 111 Mobile seat 12 Bag clamp 121 Guide rod 122 Tie rod 13 Connecting rod 131 Avoidance groove 20 First clamping assembly 21 First clamping arm 211 First connection part 212 First clamping part 30 Second clamping assembly 31 Second clamping arm 311 Second connection part 312 Second clamping part 41 The first lifting mechanism 42 Second lifting mechanism 50 Bracket 60 Barrel 70 Support frame

[0051] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0054] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0055] The utility model discloses a material unloading maintaining device, which includes a bracket 50, a first clamping assembly 20, a first lifting mechanism 41, a bag pulling assembly 10 and a second lifting mechanism 42, wherein the bracket 50 is provided with a barrel 60; the first clamping assembly 20 is rotatably arranged on the bracket 50; the first lifting mechanism 41 is connected to the bracket 50; the bag pulling assembly 10 is movably arranged on the edge of the barrel 60; the second lifting mechanism 42 is connected to the bag pulling assembly 10; wherein, when the first lifting mechanism 41 drives the bracket 50 to descend, the barrel 60 is extended into the bag opening of the ton bag, and when the second lifting mechanism 42 drives the bag pulling assembly 10 to descend, the bag pulling assembly 10 is clamped with the bag opening edge of the ton bag; the first clamping assembly 20 is used for clamping the bag opening of the ton bag on the outer wall of the barrel 60 after the barrel 60 is extended into the bag opening of the ton bag.

[0056] In one embodiment, the material unloading and maintaining device further includes a support frame 70 , which is used to be fixed on an external mechanism, and the support frame 70 is used to provide an installation space for the first lifting mechanism 41 and the second lifting mechanism 42 .

[0057] The first lifting mechanism 41 and the second lifting mechanism 42 can both use cylinders. The driving end of the first lifting mechanism 41 is connected to the bracket 50, and the driving end is extended to drive the bracket 50 to move up and down. The bracket 50 drives the first clamping assembly 20 to move up and down synchronously during the process of moving up and down. Correspondingly, the driving end of the second lifting mechanism 42 is connected to the bag pulling assembly 10, and the driving end is extended to drive the bag pulling assembly 10 to move up and down.

[0058] To debug the device before operation, please refer to Figure 1 and Figure 2 , control the first lifting mechanism 41 to drive the bracket 50 to rise to the highest point as the initial position of the first clamping assembly 20, and control the second lifting mechanism 42 to drive the bag pulling assembly 10 to rise to the highest point as the initial position of the bag pulling assembly 10. The first clamping assembly 20 is lifted and rotated to the maximum stroke toward the side away from the barrel 60 as the initial position.

[0059] When running, please refer to Figure 3 and Figure 4 , the first lifting mechanism 41 and the second lifting mechanism 42 simultaneously drive the bag pulling assembly 10 and the bracket 50 to descend. Among them, the ton bag is moved to the bottom of the barrel 60 through the upstream equipment unloading fixture. After the bracket 50 descends, the barrel 60 can be inserted into the bag mouth of the ton bag. After the barrel 60 is inserted into the ton bag, the first clamping assembly 20 rotates and cooperates with the outer wall of the barrel 60 to clamp the bag mouth of the ton bag, that is, the first clamping assembly 20 presses the bag mouth of the ton bag on the outer wall of the barrel 60 to prevent the risk of the ton bag falling from the barrel 60.

[0060] After the bag pulling assembly 10 is lowered, it engages with the two opposite edges of the ton bag. One end of the barrel 60 is connected to an external feeding device, and the material moves into the barrel 60 through the external feeding device and is collected into the ton bag at the bottom through the barrel 60.

[0061] When the material is loaded, the first clamping assembly 20 is reset to the initial position; the first lifting mechanism 41 drives the bracket 50 to reset to the initial position, so that the barrel 60 is pulled out from the bag opening of the ton bag; the bag pulling assembly 10 can fix one side of the bag opening of the ton bag and move the other side in opposite directions, thereby driving the bag opening of the ton bag to be flattened. Alternatively, the bag pulling assembly 10 can also drive both sides of the bag opening of the ton bag to move in opposite directions at the same time, thereby driving the bag opening of the ton bag to be flattened.

[0062] After the mouth of the ton bag is flattened, the second lifting mechanism 42 is reset to the initial position after the clamp of the rear-end equipment clamps and transfers the ton bag with the mouth flattened. At this point, a complete operation cycle of bagging, clamping and pulling the ton bag is completed. By repeating this operation cycle, the loading of the ton bag is completed.

[0063] The technical solution of the utility model inserts the barrel 60 and the bag-pulling assembly 10 into the bag mouth of the ton bag through the first lifting mechanism 41 and the second lifting mechanism 42, and clamps the bag mouth of the ton bag on the outer wall of the barrel 60 through the first clamping assembly 20 during the unloading process. After unloading, the bag mouth of the ton bag is flattened by moving the bag-pulling assembly 10, so as to facilitate the clamping of the rear-end equipment, thereby ensuring continuous production rhythm and improving production efficiency.

[0064] In one embodiment, please refer to Figure 1 to Figure 5 The bag pulling assembly 10 includes a driving module 11, two bag pulling clamps 12 and a connecting rod 13. The second lifting mechanism 42 is connected to the driving module 11. The two bag pulling clamps 12 are relatively arranged on both sides of the barrel 60. One end of the connecting rod 13 is connected to the bag pulling clamp 12, and the other end is connected to the driving module 11. The number of the connecting rods 13 is consistent with the bag pulling clamps 12 and is arranged one by one. The driving module 11 is used to drive the connecting rod 13 to move and drive the bag pulling clamps 12 to move away from or close to the barrel 60.

[0065] The driving module 11 may be a bidirectional linear module. A moving seat 111 is respectively provided at both ends of the bidirectional linear module. The two bag pulling clamps 12 are respectively mounted on a moving seat 111 .

[0066] The bag clamps 12 are connected by a connecting rod 13, and the two bag clamps 12 are respectively located on opposite sides of the barrel 60. When the driving module 11 drives the two connecting rods 13 to move toward each other, the two bag clamps 12 are brought together and close to the two sides of the barrel 60. It can be understood that when loading, the barrel 60 extends into the bag opening of the ton bag, and the bag opening is clamped on the outer wall of the barrel 60, so that the edge of the barrel 60 is aligned with the bag opening edge of the bottom ton bag by driving the two bag clamps 12 close to the edge of the barrel 60.

[0067] When the leveling is completed, the driving module 11 drives the two bag-pulling clamps 12 to move in opposite directions, so that the bag-pulling clamps 12 are separated from the barrel 60 to avoid interference with the normal operation of other components.

[0068] In one embodiment, please refer to Figure 6 The bag clamp 12 includes a guide rod 121 and a pull rod 122, one end of the connecting portion is connected to the driving module 11, and the other end is connected to the guide rod 121; the pull rod 122 is arranged on one side of the guide rod 121; wherein, when the bag clamp 12 is lowered, the guide rod 121 is clamped on the inner side of the bag opening of the ton bag, and the pull rod 122 is clamped on the outer side of the bag opening of the ton bag.

[0069] The connecting portion is rod-shaped, and the guide rod 121 and the connecting portion can be integrally formed.

[0070] The connecting part is arranged horizontally, and one end is connected to the driving module 11. After the connection, the driving module 11 drives the connecting part to move horizontally. The top of the guide rod 121 is connected to the connecting part, and the bottom extends downward to ensure that when the second lifting mechanism 42 drives the driving module 11 to descend, the guide rod 121 can be inserted into the inner side of the ton bag.

[0071] The pull rod 122 is disposed on one side of the guide rod 121 , and one pull rod 122 may be disposed on two opposite sides of the guide rod 121 .

[0072] The pull rod 122 is bent or arc-shaped, and the top can be fixed to the guide rod 121 by welding, and the bottom is bent and protrudes from the pull rod 122, that is, the pull rod 122 and the bottom of the guide rod 121 are staggered. Therefore, when the guide rod 121 is inserted into the inner side of the bag opening of the ton bag, the pull rod 122 is located outside the bag opening of the ton bag. After the guide rod 121 and the pull rod 122 are lowered into place, please refer to Figure 7 The bag opening edge A of the ton bag is clamped between the guide rod 121 and the pull rod 122 to prevent the guide rod 121 from being separated from the bag opening of the ton bag during the flattening process.

[0073] It can be understood that the position of the guide rod 121 can be interchanged with the position of the pull rod 122, that is, their installation positions can be adjusted so that after lowering, the guide rod 121 is located outside the bag opening of the ton bag, and the pull rod 122 is located inside the bag opening of the ton bag.

[0074] In one embodiment, the connecting portion has an escape groove 131 , and when the driving module 11 drives the connecting portion to move toward the side close to the barrel 60 , the escape groove fits against the outer periphery of the outer wall of the barrel 60 .

[0075] The barrel 60 has a certain shape. In order to ensure that the connecting rod 13 can better fit the edge of the barrel 60 when approaching the barrel 60, an avoidance groove 131 structure is made on the connecting rod 13, which is recessed toward the side away from the barrel 60. The shape of the avoidance groove 131 is similar to the shape of the outer wall of the barrel 60.

[0076] In one embodiment, the first clamping assembly 20 includes two first clamping arms 21 and a first rotating member, and the two first clamping arms 21 are relatively arranged on both sides of the barrel 60; the first rotating member is arranged on the bracket 50, and the driving end of the first rotating member is connected to the first clamping arm 21, and the number of the first rotating members is consistent with the number of the first clamping arms 21 and is arranged one-to-one; the first rotating member is used to drive the first clamping arm 21 to rotate, and the first clamping arm 21 moves toward a side away from or close to the barrel 60 when rotating.

[0077] There are two first clamping arms 21 , which are symmetrically arranged on two opposite sides of the barrel 60 .

[0078] The first rotating member can be a rotating motor, etc., which is fixed on the bracket 50 , and the rotating shaft is connected to the first clamping arm 21 .

[0079] The first clamping arm 21 is in a curved arc structure, the top of which is connected to the first rotating member, and the bottom of which extends downward. Figure 1 , control the first clamping arm 21 on the left to rotate counterclockwise, and control the first clamping arm 21 on the right to rotate clockwise, until the two first clamping arms 21 are in contact with the barrel 60. When the barrel 60 extends into the bag opening of the ton bag, the two first clamping arms 21 clamp the bag opening of the ton bag on the barrel 60.

[0080] In one embodiment, the first clamping arm 21 includes a first connecting portion 211 and a first clamping portion 212, wherein one end of the first connecting portion 211 is connected to the first rotating member, and the other end is connected to the first clamping portion 212; wherein, the first clamping portion 212 is arc-shaped, and when the two first clamping portions 212 move toward the side close to the barrel 60 until they abut against the barrel 60, the two first clamping portions 212 abut against and are spliced ​​to form an annular clamping structure that is adapted to the shape of the barrel 60.

[0081] A rubber gasket may be further added to the first clamping portion 212 to increase the friction between the first clamping portion 212 and the ton bag, thereby preventing the risk of the ton bag falling due to the heavy material inside.

[0082] The first connection portion 211 and the second connection portion 311 may be integrally formed to increase the connection strength.

[0083] The first connecting portion 211 is arranged in an "L" shape to avoid the protruding structure of the edge of the bracket 50 to prevent interference during rotation. The shape of the first clamping portion 212 is consistent with the shape of the outer wall of the barrel 60 to ensure that the first clamping portion 212 can be completely fitted with the outer wall of the barrel 60, thereby improving the clamping effect on the ton bag.

[0084] In one embodiment, the material unloading maintaining device also includes a second clamping assembly 30, which is rotatably disposed on the bracket 50, and the second clamping assembly 30 is located on the top of the first clamping assembly 20; the second clamping assembly 30 is used to rotate and clamp the bag mouth of the ton bag on the outer wall of the barrel 60 after the first clamping assembly 20 clamps the bag mouth of the ton bag on the outer wall of the barrel 60.

[0085] Among them, the second clamping assembly 30 can adopt a structure similar to the first clamping assembly 20, specifically including a second rotating member and two second clamping arms 31, and the two second clamping arms 31 are relatively arranged on both sides of the barrel 60; the second rotating member is arranged on the bracket 50, and the driving end of the second rotating member is connected to the second clamping arm 31, and the number of the second rotating members is consistent with the number of the second clamping arms 31 and is arranged one by one; the second rotating member is used to drive the second clamping arm 31 to rotate, and the second clamping arm 31 moves toward the side away from or close to the barrel 60 when rotating.

[0086] The second clamping arm 31 is located above the first clamping arm 21. When the first clamping arm 21 rotates and clamps the ton bag on the outer wall of the barrel 60, the second clamping arm 31 is driven to rotate at the same time to assist in clamping the ton bag and improve stability during the unloading process.

[0087] In one embodiment, the second clamping arm 31 includes a second connecting portion 311 and a second clamping portion 312 , wherein one end of the second connecting portion 311 is connected to the second rotating member, and the other end is connected to the second clamping portion 312 , and the second clamping portion 312 is located above the first clamping portion 212 .

[0088] A rubber gasket may also be provided on the second clamping portion 312 to increase the friction between the second clamping portion 312 and the ton bag. The second clamping portion 312 is smaller than the first clamping portion 212 to avoid occupying too much installation space and causing interference with the first clamping portion 212.

[0089] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A material feeding and maintaining device, characterized in that: The material feeding and maintaining device comprises: A support, wherein the support carries a material barrel; a first clamping assembly, the first clamping assembly being rotatably disposed on the bracket; a first lifting mechanism, the first lifting mechanism being connected to the bracket; A bag pulling assembly, the bag pulling assembly being movably arranged at the edge of the barrel; a second lifting mechanism, the second lifting mechanism being connected to the bag pulling assembly; Among them, when the first lifting mechanism drives the bracket to descend, the barrel is inserted into the bag opening of the ton bag; when the second lifting mechanism drives the bag pulling assembly to descend, the bag pulling assembly is clamped with the edge of the bag opening of the ton bag; the first clamping assembly is used to clamp the bag opening of the ton bag on the outer wall of the barrel after the barrel is inserted into the bag opening of the ton bag.

2. The material feeding and maintaining device according to claim 1, characterized in that: The bag pull assembly comprises: A driving module, wherein the second lifting mechanism is connected to the driving module; Two bag-pulling clamps, which are arranged oppositely on two sides of the barrel; A connecting rod, one end of which is connected to the bag pulling clamp, and the other end of which is connected to the driving module, and the number of the connecting rods is consistent with the bag pulling clamp and is arranged in a one-to-one correspondence; The driving module is used to drive the connecting rod to move and drive the bag pulling clamp to move away from or close to the barrel.

3. The material feeding and maintaining device according to claim 2, characterized in that: The bag clamp comprises: A guide rod, one end of the connecting rod is connected to the driving module, and the other end is connected to the guide rod; A pull rod, the pull rod being arranged on one side of the guide rod; When the bag clamp is lowered, the guide rod is clamped on the inner side of the bag opening of the ton bag, and the pull rod is clamped on the outer side of the bag opening of the ton bag.

4. The material feeding and maintaining device according to claim 3, characterized in that: The connecting rod is provided with an avoidance groove. When the driving module drives the connecting rod to move toward a side close to the barrel, the avoidance groove fits against the periphery of the outer wall of the barrel.

5. The material feeding and maintaining device according to claim 2, characterized in that: The driving module is a bidirectional linear module, and the two bag pulling clamps are respectively arranged on movable seats at both ends of the bidirectional linear module. The bidirectional linear module is used to drive the two bag pulling clamps to move toward or away from each other.

6. The material feeding and maintaining device according to claim 1, characterized in that: The first clamping assembly comprises: Two first clamping arms, the two first clamping arms are arranged oppositely on two sides of the barrel; A first rotating member, wherein the first rotating member is disposed on the bracket, a driving end of the first rotating member is connected to the first clamping arm, and the number of the first rotating members is consistent with the number of the first clamping arms and is disposed in a one-to-one correspondence; The first rotating member is used to drive the first clamping arm to rotate, and the first clamping arm moves toward a side away from or close to the barrel when rotating.

7. The material feeding and maintaining device according to claim 6, characterized in that: The first clamping arm comprises: a first connecting portion; a first clamping portion, wherein one end of the first connecting portion is connected to the first rotating member, and the other end is connected to the first clamping portion; Wherein, the first clamping portion is arc-shaped. When the two first clamping portions move toward the side close to the barrel until they abut against the barrel, the two first clamping portions abut and splice to form an annular clamping structure that matches the shape of the barrel.

8. The material feeding and maintaining device according to claim 7, characterized in that: The material unloading and maintaining device further comprises a second clamping assembly, which is rotatably arranged on the bracket and is located on the top of the first clamping assembly; The second clamping assembly is used to rotate and clamp the bag opening of the ton bag on the outer wall of the barrel after the first clamping assembly clamps the bag opening of the ton bag on the outer wall of the barrel.

9. The material feeding and maintaining device according to claim 8, characterized in that: The second clamping assembly comprises: Two second clamping arms, the two second clamping arms are arranged oppositely on two sides of the barrel; A second rotating member, wherein the second rotating member is disposed on the bracket, a driving end of the second rotating member is connected to the second clamping arm, and the number of the second rotating members is consistent with the number of the second clamping arms and is disposed in a one-to-one correspondence; The second rotating member is used to drive the second clamping arm to rotate, and the second clamping arm moves toward a side away from or close to the barrel when rotating.

10. The material feeding and maintaining device according to claim 9, characterized in that: The second clamping arm comprises: a second connecting portion; A second clamping portion, wherein one end of the second connecting portion is connected to the second rotating member, and the other end is connected to the second clamping portion, and the second clamping portion is located above the first clamping portion.

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