Clamping jaw structure of bagged material car loader

Abstract

The invention relates to the technical field of clamping jaws, and discloses a bagged material car loader clamping jaw structure which comprises a base plate, side cavities are formed in the two sides of the base plate, rotating shafts are rotationally installed in the side cavities through bearings, the two ends of each rotating shaft are sleeved with rotating arms, and a rotating plate is welded between the two rotating arms on the same side; clamping jaws are fixed between the rotating plates on the two sides. According to the clamping jaw structure of the bagged material car loader, the slow descending assembly synchronously drives packaging bags to move downwards, the packaging bags are conveyed downwards by a certain distance and then fall into a stacking area, on one hand, friction between the packaging bags and the clamping jaw during falling is reduced, and on the other hand, the height of the packaging bags during unloading is reduced; according to the stacking device, materials are prevented from falling into a stacking area from high altitude, impact force of the materials during stacking is reduced, so that the stacking body is prevented from inclining and even collapsing, packaging bags cannot slide downwards along the inclination of the clamping jaws, friction between the packaging bags and the clamping jaws during discharging is reduced, and abrasion is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of clamping jaws, and in particular to a clamping jaw structure of a bagged material loading machine. Background Art

[0002] In the salt chemical industry (such as snowflake salt production), automated loading and palletizing of bagged materials is a key step in improving production efficiency. Currently, the widely used gripper loader uses two-sided grippers to clamp, transport, and palletize sacks.

[0003] The existing gripper structure needs to release the material by rotating and expanding during unloading, which causes sliding friction between the surface of the snakeskin bag and the inner wall of the gripper. Since the snakeskin bag is thin and the load is fluid, the bag body is easily scratched or even damaged during the friction process, resulting in material leakage, which seriously affects the packaging integrity and product quality stability. This problem is particularly prominent in high-speed continuous operation scenarios. At the same time, in order to avoid interference with the stacked materials when the gripper rotates and expands, the existing design needs to reserve a safety interval of 10-20cm in the storage area. This interval causes the snakeskin bag to experience free fall after it is separated from the gripper. The impact force of the fall can easily cause the distribution of the material in the bag to shift, especially causing extrusion deformation of the stacked layers, resulting in the risk of tilting or even collapse of the stack. Summary of the Invention

[0004] In view of the above-mentioned problem that the existing method causes sliding friction between the surface of the snakeskin bag and the inner wall of the clamping claw, which easily causes scratches or even damage to the bag during the friction process, resulting in material leakage, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a clamping structure for a bagged material loading machine, which aims to reduce the friction between the packaging bag and the clamping claw during unloading and also reduce the impact force of falling.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a clamping structure of a bagged material loading machine, comprising a base plate, side cavities are provided on both sides of the base plate, and a rotating shaft is rotatably installed inside the side cavity through a bearing, both ends of the rotating shaft are sleeved with rotating arms, a rotating plate is welded between the two rotating arms on the same side, a clamping claw is fixed between the rotating plates on both sides, and a motor connecting frame is fixed in the middle of the top of the base plate;

[0007] A rotation drive assembly for driving the clamping claw to rotate is installed on the top of the base plate and on both sides of the motor connecting frame, and the rotation drive end of the rotation drive assembly is fixed on the rotating shaft;

[0008] The four corners of the top of the base plate are each installed with a slow-down assembly, and a lifting plate is fixedly connected between the movable ends of the four slow-down assemblies. Translation plates are slidably provided on both sides of the bottom of the lifting plate, and a plurality of positioning strips are installed on the opposite surfaces of the two translation plates. A support block is rotatably installed at the end of the positioning strip away from the lifting plate, and the top of the support block is bonded with soft rubber;

[0009] Linkage arms are installed at both ends of the rotating shaft, and each linkage arm controls the descent of a movable end of a descent control assembly.

[0010] As an improved technical solution, a pin shaft five is rotatably installed at the bottom of the positioning bar through a bearing, a rotating connecting block is sleeved on the middle part of the pin shaft five, and the rotating connecting block is fixedly connected to the support block, and torsion springs are installed at both ends of the pin shaft five.

[0011] As an improved technical solution, a pad is fixed in the middle of the bottom of the lifting plate, and rotating connecting blocks are fixed on both sides of the bottom of the pad in a relative state. Guide rails are installed on the bottom of the lifting plate and on both sides of the pad, and sliders that slide on the guide rails are fixed on both sides of the top of the translation plate.

[0012] As an improved technical solution, the rotary drive assembly includes two mounting circles rotatably mounted on the top of the base plate, a rod sleeve is fixedly connected between the opposite ends of the two mounting circles, a single-head electric telescopic rod is fixed inside the rod sleeve, the movable end of the single-head electric telescopic rod is fixedly connected to a U-shaped frame, a pin shaft 1 is rotatably mounted inside the U-shaped frame, a linkage bar is rotatably mounted on the U-shaped frame through the pin shaft 1, and the end of the linkage bar away from the U-shaped frame is sleeved on the rotating shaft.

[0013] As an improved technical solution, the slow-descent assembly includes a vertical bin fixed on the top of the base plate, a positioning block is provided inside the vertical bin, a lifting rod is fixed to the middle of the bottom of the positioning block, an annular electromagnet is fixed to the bottom of the inner wall of the vertical bin, a permanent magnet is fixed to one end face of the positioning block close to the annular electromagnet, and the opposite surfaces of the annular electromagnet and the permanent magnet are in a magnetic repulsion state.

[0014] As an improved technical solution, clamping blocks are slidably installed on both sides of the vertical bin, and a magnetic strip is fixed on the upper side of the clamping block close to one end face of the vertical bin, and the opposite surfaces of the magnetic strips on both sides are in a magnetically attracted state. A number of clamping rods are fixed on the opposite surfaces of the two clamping blocks and located below the magnetic strips, and clamping holes for clamping with the clamping rods are provided on both sides of the positioning block.

[0015] As an improved technical solution, two T-shaped rods are fixed on both sides of the vertical bin, and the clamping block slides between the two T-shaped rods through the sliding holes opened thereon. The cross bar end of the T-shaped rod is located on the side of the clamping block away from the magnetic strip and is sleeved with a spring.

[0016] As an improved technical solution, the linkage arm includes a pin shaft four that is rotatably installed on the vertical bin toward the outside through a bearing, a rotating rod is sleeved on the pin shaft four, and the rotating rod is located between the magnetic strips on both sides, and strip electromagnets are fixed on both end faces of the rotating rod, and the strip electromagnets on the same side and the magnetic strips are in a magnetic repulsion state.

[0017] As an improved technical solution, the linkage arm also includes an active rod sleeved on the rotating shaft, one end of the pin shaft four is sleeved on a driven rod, a transmission rod is rotatably installed between the active rod and the driven rod, the end of the transmission rod close to the active rod is rotatably installed with pin shaft two, and the end of the transmission rod close to the driven rod is rotatably installed with pin shaft three.

[0018] After adopting the above technical solution, the beneficial effects of the present invention are:

[0019] 1. In the present invention, when the packaging bag is located between the two clamping jaws, the double-headed electric telescopic rods on both sides are shortened at the same time to move the translation plates on both sides toward the lower middle, so that the packaging bag is located between the positioning strips on both sides. The spacing between the positioning strips on both sides is adjustable, and it can be adapted to packaging bags of different sizes for use. It can also ensure that when clamping packaging bags of different sizes, the support block can be kept close to the bottom of the side of the packaging bag, ensuring the support effect of the support block on the packaging bag.

[0020] 2. In the present invention, the torsion spring is used to keep the support block in a horizontal position on the one hand, so that the support block maintains a certain supporting effect on the packaging bag. On the other hand, it can also automatically reset the support block after rotation to ensure that the support block repeatedly supports the packaging bag. At the same time, the torsion force of the torsion spring can also play a buffering effect on the packaging bag when the package presses down on the support block, further reducing the impact force when the packaging bag is unloaded.

[0021] 3. In the present invention, the extension and contraction of the rotary drive assembly synchronously drives the bar electromagnet in and out between the two magnetic strips, which is used to synchronously control the disengagement of the clamping rod from the clamping hole. That is, when the clamping claws are unfolded to a certain angle, the lock on the lifting plate will be synchronously opened, so that the packaging bag and the support block fall downward synchronously, making the two in a linked state and more clever in coordination.

[0022] 4. In the present invention, when the positioning block is in a descending state, the repulsive effect between the annular electromagnet and the permanent magnet prevents the permanent magnet from descending, thereby preventing the permanent magnet from colliding with the annular electromagnet and playing a protective role in falling. At the same time, the positioning block can be pushed back to its original position by gradually increasing the magnetism of the annular electromagnet to achieve self-reset. Moreover, the setting of the spring can push the card rod back to the engagement with the card hole after the card rod is disengaged from the engagement with the card hole, and under the magnetic adsorption effect of the magnetic strips on both sides, the stability of the engagement between the card rod and the card hole can be reinforced, thereby preventing the lifting rod from being in an active state and ensuring the stability of the structural operation.

[0023] 5. In the present invention, when unloading the packaging bags, after the clamps on both sides are unfolded, the packaging bags are synchronously driven to move downward by the slow-down assembly, and the packaging bags are transported downward for a distance and then fall into the stacking area. On the one hand, the friction between the packaging bags and the clamps when dropping the materials is reduced. On the other hand, the height of the packaging bags when unloading is also lowered, preventing the materials from falling from a high altitude into the stacking area, reducing the impact force of the materials during stacking, and thus helping to prevent the stack from tilting or even collapsing. Moreover, when the clamps are unfolded, the packaging bags will not slide downward along the inclination of the clamps, and the packaging bags are in a forbidden state, reducing the friction between the packaging bags and the clamps when unloading, reducing wear, and improving the integrity of the packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0025] Figure 1 It is a schematic diagram of the overall structure of the clamping structure of the bag material loading machine of the present invention.

[0026] Figure 2 This is a schematic structural diagram of the linkage state of the rotary drive assembly, linkage arm and rotating plate of the clamping structure of the bagged material loader of the present invention.

[0027] Figure 3 It is a structural schematic diagram of the slow-down assembly and the lifting plate of the clamping structure of the bag material loader of the present invention.

[0028] Figure 4 The present invention is a bag material loading machine clamping structure Figure 3 Schematic diagram of the structure at point A in the middle.

[0029] Figure 5 This is a schematic structural diagram of the two translation plates of the clamping structure of the bagged material loader of the present invention.

[0030] Figure 6 This is a structural schematic diagram of the slow-down assembly of the clamping structure of the bagged material loader of the present invention.

[0031] Figure 7 This is a schematic structural diagram of the two clamping blocks of the clamping structure of the bagged material loader of the present invention.

[0032] Figure 8 This is a schematic cross-sectional view of the vertical bin of the clamping structure of the bagged material loader of the present invention.

[0033] Description of reference numerals:

[0034] 1. Base plate; 2. Rotating axis; 3. Rotating arm; 4. Rotating plate; 5. Clamp; 6. Rotating drive assembly; 61. Mounting ring; 62. Rod sleeve; 63. Single-head electric telescopic rod; 64. U-shaped frame; 65. Linkage bar; 66. Pin 1; 7. Linkage arm; 71. Active rod; 72. Pin 2; 73. Transmission rod; 74. Pin 3; 75. Pin 4; 76. Driven rod; 77. Bar electromagnet; 78. Rotating rod; 8. Slow-down assembly; 81. Vertical bin; 82. Lift Rod; 83, clamping block; 84, magnetic strip; 85, spring; 86, T-bar; 87, clamping rod; 88, positioning block; 89, clamping hole; 810, permanent magnet; 811, ring electromagnet; 9, lifting plate; 10, motor connecting frame; 11, support block; 111, pin five; 112, rotating connecting block; 113, torsion spring; 114, soft rubber; 12, translation plate; 121, pad; 122, double-head electric telescopic rod; 123, guide rail; 124, slider; 13, positioning strip. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0036] Example 1

[0037] Reference Figures 1-8 , which is the first embodiment of the present invention, provides a clamping structure for a bag material loader. The clamping structure comprises a base plate 1, with side cavities provided on both sides of the base plate 1, and a rotating shaft 2 rotatably mounted inside the side cavity via a bearing. Rotating arms 3 are sleeved on both ends of the rotating shaft 2, a rotating plate 4 is welded between the two rotating arms 3 on the same side, and clamping jaws 5 are fixed between the rotating plates 4 on both sides. A motor connecting frame 10 is fixed to the middle of the top of the base plate 1;

[0038] A rotation drive assembly 6 for driving the clamping jaw 5 to rotate is installed on the top of the base plate 1 and on both sides of the motor connecting frame 10, and the rotation drive end of the rotation drive assembly 6 is fixed on the rotating shaft 2;

[0039] The four corners of the top of the base plate 1 are all equipped with a slow-down component 8, and the movable end of the slow-down component 8 is located below the base plate 1. A lifting plate 9 is fixedly connected between the movable ends of the four slow-down components 8. Translation plates 12 are slidably provided on both sides of the bottom of the lifting plate 9. A plurality of positioning bars 13 are installed on the opposite surfaces of the two translation plates 12, and the positioning bars 13 are located between two adjacent clamping jaws 5. The number of positioning bars 13 on the same side is N, and the number of clamping jaws 5 on the same side is N+1. A support block 11 is rotatably installed on the end of the positioning bar 13 away from the lifting plate 9, and a soft rubber 114 is bonded to the top of the support block 11;

[0040] Linkage arms 7 are installed at both ends of the rotating shaft 2, and each linkage arm 7 controls the descent of a movable end of a corresponding descent component 8.

[0041] The bottom of the positioning bar 13 is rotatably installed with a pin shaft 5 111 through a bearing, and the middle part of the pin shaft 5 111 is sleeved with a rotating connecting block 112, and the rotating connecting block 112 is fixedly connected to the support block 11, and a torsion spring 113 is installed at both ends of the pin shaft 5 111. The setting of the torsion spring 113 is used on the one hand to keep the support block 11 in a horizontal position, so that the support block 11 maintains a certain supporting effect on the packaging bag, and on the other hand, it can also automatically reset the support block 11 after rotation, ensuring that the support block 11 repeatedly supports the packaging bag. At the same time, the torsion force of the torsion spring 113 can also play a buffering effect on the packaging bag when the package presses down on the support block 11, further reducing the impact force when the packaging bag is unloaded.

[0042] A pad 121 is fixed to the middle part of the bottom of the lifting plate 9, and rotating connecting blocks 112 are fixed on both sides of the bottom of the pad 121 in a relative state, and the movable ends of the double-headed electric telescopic rods 122 are fixed on the corresponding side translation plates 12. The bottom of the lifting plate 9 and both sides of the pad 121 are installed with guide rails 123, and sliders 124 sliding on the guide rails 123 are fixed on both sides of the top of the translation plate 12. When the packaging bag is located between the two clamping jaws 5, the double-headed electric telescopic rods 122 on both sides are shortened at the same time to move the translation plates 12 on both sides toward the lower middle at the same time, so that the packaging bag is located between the positioning strips 13 on both sides. The spacing between the positioning strips 13 on both sides is adjustable, which can be adapted to packaging bags of different sizes for use, and can also ensure that when clamping packaging bags of different sizes, the support block 11 can be kept close to the bottom of the side of the packaging bag, thereby ensuring the supporting effect of the support block 11 on the packaging bag.

[0043] The rotary drive assembly 6 includes two mounting circles 61 rotatably mounted on the top of the base plate 1, a rod sleeve 62 is fixedly connected between the opposite ends of the two mounting circles 61, a single-head electric telescopic rod 63 is fixed inside the rod sleeve 62, the movable end of the single-head electric telescopic rod 63 is fixedly connected to a U-shaped frame 64, a pin 66 is rotatably mounted inside the U-shaped frame 64, and a linkage bar 65 is rotatably mounted on the U-shaped frame 64 through the pin 66, and the end of the linkage bar 65 away from the U-shaped frame 64 is sleeved on the rotating shaft 2.

[0044] The slow-descent component 8 includes a vertical bin 81 fixed on the top of the base plate 1, and a positioning block 88 is provided inside the vertical bin 81. A lifting rod 82 is fixed to the middle of the bottom of the positioning block 88, and sliding holes for the lifting rod 82 to pass through are provided on the bottom of the vertical bin 81 and the base plate 1. An annular electromagnet 811 is fixed to the bottom of the inner wall of the vertical bin 81, and the lifting rod 82 passes through the inner hole of the annular electromagnet 811. A permanent magnet 810 is fixed to one end face of the positioning block 88 close to the annular electromagnet 811, and the opposite surfaces of the annular electromagnet 811 and the permanent magnet 810 are in a magnetic repulsion state.

[0045] During use, when the packaging bag is unloaded, after the jaws 5 on both sides are unfolded, the packaging bag is synchronously driven downward by the slow-down component 8, and the packaging bag is transported downward for a distance and then falls into the stacking area. On the one hand, the friction between the packaging bag and the jaws 5 when falling is reduced. On the other hand, the height of the packaging bag when unloading is also reduced, preventing the material from falling from a high altitude into the stacking area, reducing the impact force of the material during stacking, and thus helping to prevent the stack from tilting or even collapsing. Moreover, when the jaws 5 are unfolded, the packaging bag will not slide downward along the inclination of the jaws 5, and the packaging bag is in a prohibited state, reducing the friction between the packaging bag and the jaws 5 when unloading, reducing wear, and improving the integrity of the packaging.

[0046] Example 2

[0047] Reference Figure 6-Figure 8 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: clamping blocks 83 are slidably installed on both sides of the vertical bin 81, and a magnetic strip 84 is fixed to the upper side of the clamping block 83 close to one end surface of the vertical bin 81, and the opposite surfaces of the magnetic strips 84 on both sides are in a magnetic attraction state, and a number of clamping rods 87 are fixed to the opposite surfaces of the two clamping blocks 83 and located below the magnetic strips 84, and round holes for the rods 87 to pass through are opened on both sides of the vertical bin 81, and clamping holes 89 for clamping with the clamping rods 87 are opened on both sides of the positioning block 88, and the number of the clamping rods 87 and the number of the clamping holes 89 are the same.

[0048] Two T-shaped rods 86 are fixed on both sides of the vertical bin 81, and the clamping block 83 slides between the two T-shaped rods 86 through the sliding holes opened thereon. The cross bar end of the T-shaped rod 86 is located on the side of the clamping block 83 away from the magnetic strip 84 and is sleeved with a spring 85. The setting of the spring 85 plays a role in pushing the clamping rod 87 back to the clamping hole 89 after the clamping rod 87 is disengaged from the clamping hole 89, and under the magnetic adsorption action of the magnetic strips 84 on both sides, the stability of the clamping rod 87 and the clamping hole 89 can be reinforced, thereby preventing the lifting rod 82 from being in an active state and ensuring the stability of the structural operation.

[0049] During use, when the positioning block 88 is in the descending state, the annular electromagnet 811 is turned on with a delay to generate repulsive magnetism with the permanent magnet 810. The repulsive effect between the annular electromagnet 811 and the permanent magnet 810 prevents the permanent magnet 810 from descending, thereby preventing the permanent magnet 810 from colliding with the annular electromagnet 811 and playing a protective role in falling. At the same time, the positioning block 88 can also be pushed back and reset by gradually increasing the magnetism of the annular electromagnet 811 to achieve self-reset.

[0050] The remaining structures are the same as those of Example 1.

[0051] Example 3

[0052] Reference Figure 2 、 Figure 6-Figure 8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the linkage arm 7 includes a pin shaft 75 rotatably mounted on the vertical bin 81 toward the outside through a bearing, a rotating rod 78 is sleeved on the pin shaft 75, and the rotating rod 78 is located between the magnetic strips 84 on both sides, and a bar electromagnet 77 is fixed to both end surfaces of the rotating rod 78, and the bar electromagnet 77 and the magnetic strip 84 on the same side are in a magnetic repulsion state.

[0053] The linkage arm 7 also includes an active rod 71 sleeved on the rotating shaft 2, and a driven rod 76 is sleeved on one end of the pin shaft 4 75. A transmission rod 73 is rotatably installed between the active rod 71 and the driven rod 76. The transmission rod 73 is rotatably installed on the end close to the active rod 71 with the pin shaft 2 72, and the transmission rod 73 is rotatably connected to the active rod 71 through the pin shaft 2 72. The transmission rod 73 is rotatably installed on the end close to the driven rod 76 with the pin shaft 3 74, and the transmission rod 73 is rotatably connected to the driven rod 76 through the pin shaft 3 74.

[0054] The extension and retraction of the rotary drive assembly 6 synchronously drives the bar electromagnet 77 in and out between the two magnetic strips 84, and is used to synchronously control the disengagement of the clamping rod 87 from the clamping hole 89, that is, when the clamping jaws 5 are unfolded to a certain angle, the lock on the lifting plate 9 will be synchronously opened, so that the packaging bag and the support block 11 fall downward synchronously, so that the two are in a linked state, and the cooperation is more ingenious.

[0055] During use, the process of the rotating shaft 2 driving the rotating rod 78 to rotate is as follows: when the single-head electric telescopic rod 63 is shortened to expand the clamping jaws 5, the active rod 71 rotates toward the lower rod sleeve 62. Under the linkage action of the transmission rod 73, the active rod 71 drives the driven rod 76 to rotate in the same direction, and finally drives the rotating rod 78 to rotate toward the clamping block 83 through the pin shaft 75, so that the bar electromagnet 77 is located between the two magnetic strips 84;

[0056] When the single-head electric telescopic rod 63 is extended to retract the clamping jaws 5 , the rotating rod 78 is synchronously moved out from between the two magnetic strips 84 .

[0057] The remaining structures are the same as those of Example 2.

[0058] In summary of Examples 1-3, the working principle of the present invention is as follows: in the initial state, the bar electromagnet 77 is in the closed state, and the bar electromagnet 77 is not between the magnetic strips 84 on both sides, and the clamping rod 87 is in the clamping state with the clamping hole 89;

[0059] When clamping is required, the clamping block 83 shortens and pulls the linkage bar 65 toward the single-head electric telescopic rod 63, thereby driving the rotating shaft 2 to rotate, causing the rotating arm 3 to drive the rotating plate 4 to rotate outward, so that the clamping jaws 5 on both sides are expanded outward, and the distance between the rotating drive components 6 on both sides is expanded, and the clamping jaw structure is moved so that the packaging bag is located between the clamping jaws 5 on both sides. At this time, the bar electromagnet 77 is located between the magnetic strips 84 on both sides;

[0060] The rotary drive assembly 6 extends to close the two side clamps 5, so that the packaging bag is located between the two side clamps 5. At this time, the bar electromagnet 77 is reset and separated from the two side magnetic strips 84. When the clamp structure completes clamping the packaging bag for the first time each time, the bar electromagnet 77 is turned on to generate magnetism.

[0061] When the bag is to be unloaded, the clamping jaws 5 on both sides are unfolded outwards. At the same time, the bar electromagnet 77 also enters between the magnetic strips 84 on both sides. At this time, since the bar electromagnet 77 is in the open state, the bar electromagnet 77 and the magnetic strips 84 magnetically repel each other, pushing the clamping block 83 in the direction away from the vertical bin 81 and compressing the spring 85, so that the clamping rod 87 is disengaged from the clamping hole 89. Under the action of gravity, the positioning block 88 falls down, and the bag and the support block 11 fall downward synchronously, reducing the height between them and the stacking area. When the positioning block 88 cannot fall anymore, the bag compresses the support block 11 by itself, causing the support block 11 to rotate and compress the torsion spring 113. When the bag is completely pressed against the support block 11 into a vertical downward state, the support of the support blocks 11 on both sides of the bag is released, and the bag completely leaves between the support blocks 11 on both sides and falls into the stacking area.

[0062] When the packaging bag is released from the downward pressure on the support block 11, the torsion spring 113 is reset to return the support block 11 to its original position, maintaining the vertical state of the support block 11 and the positioning bar 13, and completing the unloading of the packaging bag;

[0063] At this time, the magnetism of the annular electromagnet 811 is gradually increased. Under the magnetic repulsion between the annular electromagnet 811 and the permanent magnet 810, the positioning block 88 is pushed upward so that its bottom is at the top of the inner wall of the vertical bin 81, and the positioning block 88 is reset. Then, the clamping jaws 5 in the open state are moved to the material to be clamped, and the clamping jaws 5 on both sides are driven to close together. The strip electromagnet 77 is separated from between the magnetic strips 84 on both sides. Under the elastic action of the spring 85 and the magnetic attraction of the magnetic strips 84 on both sides, the clamping block 83 is moved toward the vertical bin 81, so that the clamping rod 87 returns to the inside of the clamping hole 89 to be clamped, thereby fixing the positioning block 88 and closing the annular electromagnet 811.

[0064] Repeat the above steps to achieve clamping and transport of materials.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A clamping structure for a bagged material loading machine, comprising a base plate (1), characterized in that: Side cavities are provided on both sides of the base plate (1), and a rotating shaft (2) is rotatably mounted inside the side cavity via a bearing, and rotating arms (3) are sleeved on both ends of the rotating shaft (2), and a rotating plate (4) is welded between the two rotating arms (3) on the same side, and clamping claws (5) are fixed between the rotating plates (4) on both sides, and a motor connecting frame (10) is fixed in the middle of the top of the base plate (1); A rotation drive assembly (6) for driving the clamping jaw (5) to rotate is installed on the top of the base plate (1) and on both sides of the motor connecting frame (10), and the rotation drive end of the rotation drive assembly (6) is fixed on the rotating shaft (2); The four corners of the top of the base plate (1) are each installed with a slow-down assembly (8), and a lifting plate (9) is fixedly connected between the movable ends of the four slow-down assemblies (8). Both sides of the bottom of the lifting plate (9) are slidably provided with a translation plate (12), and the opposite surfaces of the two translation plates (12) are each installed with a plurality of positioning strips (13), and a support block (11) is rotatably installed at one end of the positioning strip (13) away from the lifting plate (9), and the top of the support block (11) is bonded with soft rubber (114); Both ends of the rotating shaft (2) are also equipped with linkage arms (7), and each linkage arm (7) controls the descent of a corresponding movable end of a descent control assembly (8).

2. The clamping structure of the bagged material loading machine according to claim 1, characterized in that: A pin shaft 5 (111) is rotatably mounted on the bottom of the positioning bar (13) via a bearing, a rotating connecting block (112) is sleeved on the middle of the pin shaft 5 (111), and the rotating connecting block (112) is fixedly connected to the support block (11), and torsion springs (113) are mounted on both ends of the pin shaft 5 (111).

3. The clamping structure of the bagged material loading machine according to claim 2, characterized in that: A backing plate (121) is fixed to the middle of the bottom of the lifting plate (9), and rotating connecting blocks (112) are fixed on both sides of the bottom of the backing plate (121) in an opposing state. Guide rails (123) are installed at the bottom of the lifting plate (9) and on both sides of the backing plate (121), and sliders (124) that slide on the guide rails (123) are fixed on both sides of the top of the translation plate (12).

4. The clamping claw structure of the bagged material loading machine according to claim 3, characterized in that: The rotary drive assembly (6) comprises two mounting rings (61) rotatably mounted on the top of the base plate (1); a rod sleeve (62) is fixedly connected between the opposite ends of the two mounting rings (61); a single-head electric telescopic rod (63) is fixed inside the rod sleeve (62); a movable end of the single-head electric telescopic rod (63) is fixedly connected to a U-shaped frame (64); a pin shaft (66) is rotatably mounted inside the U-shaped frame (64); a linkage bar (65) is rotatably mounted on the U-shaped frame (64) via the pin shaft (66); and an end of the linkage bar (65) away from the U-shaped frame (64) is sleeved on the rotating shaft (2).

5. The clamping claw structure of the bagged material loading machine according to claim 4, characterized in that: The slow-down assembly (8) comprises a vertical bin (81) fixed on the top of the base plate (1); a positioning block (88) is provided inside the vertical bin (81); a lifting rod (82) is fixed to the middle of the bottom of the positioning block (88); an annular electromagnet (811) is fixed to the bottom of the inner wall of the vertical bin (81); a permanent magnet (810) is fixed to one end face of the positioning block (88) close to the annular electromagnet (811), and the opposing surfaces of the annular electromagnet (811) and the permanent magnet (810) are in a magnetic repulsive state.

6. The clamping claw structure of the bagged material loading machine according to claim 5, characterized in that: Clamping blocks (83) are slidably mounted on both sides of the vertical bin (81), and a magnetic strip (84) is fixed on the upper side of the clamping block (83) close to one end face of the vertical bin (81), and the opposite surfaces of the magnetic strips (84) on both sides are in a magnetic attraction state. A plurality of clamping rods (87) are fixed on the opposite surfaces of the two clamping blocks (83) and located below the magnetic strips (84), and clamping holes (89) for clamping with the clamping rods (87) are provided on both sides of the positioning block (88).

7. The clamping claw structure of the bagged material loading machine according to claim 6, characterized in that: Two T-shaped rods (86) are fixed on both sides of the vertical bin (81), and the clamping block (83) slides between the two T-shaped rods (86) through a sliding hole opened thereon, and a spring (85) is sleeved on the crossbar end of the T-shaped rod (86) and located on the side of the clamping block (83) away from the magnetic strip (84).

8. The clamping claw structure of the bagged material loading machine according to claim 7, characterized in that: The linkage arm (7) includes a pin shaft (75) rotatably mounted on the vertical bin (81) toward the outside through a bearing, a rotating rod (78) is sleeved on the pin shaft (75), and the rotating rod (78) is located between the magnetic strips (84) on both sides, and a bar electromagnet (77) is fixed on both end surfaces of the rotating rod (78), and the bar electromagnet (77) and the magnetic strip (84) on the same side are in a magnetic repulsion state.

9. The clamping claw structure of the bagged material loading machine according to claim 8, characterized in that: The linkage arm (7) further comprises an active rod (71) sleeved on the rotating shaft (2), one end of the pin shaft four (75) is sleeved with a driven rod (76), a transmission rod (73) is rotatably mounted between the active rod (71) and the driven rod (76), a pin shaft two (72) is rotatably mounted on one end of the transmission rod (73) close to the active rod (71), and a pin shaft three (74) is rotatably mounted on one end of the transmission rod (73) close to the driven rod (76).

Images