Incremental bag moving mechanism of PE bag

Abstract

The application relates to the technical field of PE bag moving technology, and discloses a PE bag incremental moving mechanism, which comprises an upper rack and a lower rack, the outer side of the lower rack is provided with a linkage moving mechanism, a driving assembly is arranged between the linkage moving mechanism and the upper rack, the upper side of the end of the lower rack, which is far away from the driving assembly, is provided with a middle swing rod assembly, a middle driving rod is arranged between the middle swing rod assembly and the linkage moving mechanism, a first inner cross beam and a second inner cross beam are fixedly installed on the inner side of the lower rack along the axial direction, and a front clamping unit, a middle clamping unit and a sealing unit are sequentially arranged on the inner side of the lower rack along the axial direction. The PE bag incremental moving mechanism is driven by a speed reducer, the linkage moving mechanism and the middle swing rod assembly form a cooperative action, the orderly handover of the front clamping unit and the middle clamping unit is matched, an automatic circulation of grabbing, transferring, clamping and moving is constructed, the production efficiency is improved, and the needs of industrialized batch production are met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PE bag moving, in particular to a PE bag incremental moving mechanism. BACKGROUND

[0002] PE bags are commonly used packaging materials made of polyethylene. With the advantages of lightness, flexibility, corrosion resistance, and cost affordability, they are widely used in food preservation, industrial part storage, and daily necessities packaging. The material is safe and non-toxic, and can be made transparent, frosted, or colored according to demand. It can also be adjusted in thickness to adapt to the packaging of light and heavy objects, combining practicality and flexibility. In the actual use of PE bags, moving and sealing are key links that connect "filling materials" and "delivery of finished products", directly determining the safety, sealing, and efficiency of the packaging. Together, they form the core process loop of PE bags from production to application.

[0003] Chinese invention patent CN104494932A discloses an automatic bag moving mechanism. The mechanism is composed of two side plates, a bag moving mechanism, a bag sucking mechanism, and a bag holding disc fixed to the outside of the side plates. The bag moving mechanism includes a bag moving cylinder holder plate, a bag moving cylinder seat, a bag moving cylinder, and a bag moving plate. The bag moving cylinder holder plate is symmetrically installed on the outside of the other side plate. The bag moving cylinder seat is fixed above the bag moving cylinder holder plate. The bag moving cylinder is fixed to the bag moving cylinder seat. The bag sucking mechanism includes a bag sucking cylinder holder plate, a bag sucking cylinder seat, a bag sucking cylinder, and a bag sucking plate. The bag sucking cylinder holder plate is fixed to the end of the bag moving cylinder rod. The bag sucking cylinder seat is above the bag sucking cylinder holder plate. The bag sucking cylinder is fixed to the bag sucking cylinder seat. The bag moving plate is fixed to the end of the cylinder rod of the bag sucking cylinder. The bag sucking plate is fixed between the two side plates.

[0004] Chinese invention patent CN111605794A discloses a bag moving mechanism and its working method. The mechanism includes a material bag filling and clamping mechanism. Below the material bag filling and clamping mechanism is a material bag moving clamp. Next to the material bag filling and clamping mechanism is a bag clamping opening moving mechanism.

[0005] Preferably, the material bag filling and clamping mechanism includes a support plate installed on a machine frame. Below the middle part of the support plate is a filling cylinder. The left and right sides of the filling cylinder are symmetrically provided with clamping mechanisms. Each clamping mechanism includes a first clamping limit cylinder and a second clamping limit cylinder. Between the limit plates of the first and second clamping limit cylinders is a clamping finger installation plate for left and right movement. The clamping finger installation plate is installed with a piston rod downward clamping pneumatic finger. The clamping pneumatic finger is provided with a clamping block.

[0006] The existing PE bag moving mechanism is limited to single action or double-station alternation, cannot realize automatic grabbing, transferring and increment of PE bags, and cannot meet the core demand of "multi-station orderly progression" in batch continuous production of PE bags.

[0007] The automatic bag moving mechanism (CN104494932A) can only complete the single link action from bag suction to bag opening of the suction plate, and the PE bag needs to be manually or by additional equipment transported to the next process after opening, which cannot realize the subsequent process operation of bag moving, resulting in low efficiency and only meeting small-scale production.

[0008] The bag moving mechanism and its working method (CN111605794A) can realize bag moving connection through double-station alternation, but the double-station can only complete the simple cycle of receiving and moving, and cannot realize incremental moving, so the practicability is poor.

[0009] Therefore, the present application provides a PE bag incremental moving mechanism. SUMMARY

[0010] The technical problem to be solved by the present application is to provide a PE bag incremental moving mechanism which can effectively solve the problems in the prior art.

[0011] The technical scheme adopted by the present application is a PE bag incremental moving mechanism, which comprises an upper rack and a lower rack, a linkage bag moving mechanism is arranged on the outer side of the lower rack, a driving assembly is arranged between the linkage bag moving mechanism and the upper rack, a middle swing rod assembly is arranged on the upper side of the end of the lower rack away from the driving assembly, a middle driving rod is arranged between the middle swing rod assembly and the linkage bag moving mechanism, a first inner cross beam and a second inner cross beam are fixedly installed on the inner side of the lower rack along the axial direction, a front clamping unit, a middle clamping unit and a sealing unit are sequentially arranged on the inner side of the lower rack along the axial direction, and the sealing unit is fixed on the second inner cross beam of the lower rack by bolts.

[0012] The linkage bag moving mechanism comprises two bearing seats one and two bearing seats two, a main shaft one is rotatably installed on the inner side of the two bearing seats one, a main shaft two is rotatably installed on the inner side of the two bearing seats two, a front swing arm is arranged at the two ends of the main shaft one, a rear swing arm is arranged at the two ends of the main shaft two, a U-shaped seat is arranged at the bottom end of each of the two front swing arms and the two rear swing arms, a rotating rod one is rotatably installed on the inner side of each U-shaped seat, a main connecting rod is rotatably installed between the two U-shaped seats through the rotating rod one, a front clamping jaw assembly and a connecting rod are arranged at the two ends of the lower part of each main connecting rod, and a rear clamping jaw assembly is arranged at the end of each connecting rod away from the main connecting rod.

[0013] Preferably, the two bearing seats one and the two bearing seats two are symmetrically distributed at the two ends of the main rotating shaft one and the main rotating shaft two respectively, and the bearing seats one and the bearing seats two are fixedly connected with the external frame.

[0014] Through the above technical scheme, the bearing seat one and the bearing seat two are fixedly connected with the external frame, the main rotating shaft one and the main rotating shaft two are reliably rotationally supported through the bearing seats symmetrically distributed at the two ends, and the front swing arm and the rear swing arm are flexibly rotationally connected with the main connecting rod through the U-shaped seat and the rotating rod one, so that the main connecting rod can drive the front jaw assembly and the rear jaw assembly at the two ends to synchronously and stably swing forward and backward.

[0015] Preferably, the front jaw assembly comprises an ear plate one and an ear plate two, the ear plate one and the ear plate two are fixedly installed on the outer side of the main connecting rod, a small rotating shaft three and a small rotating shaft five are rotationally installed on the outer side of the ear plate one, a connecting plate two is rotationally installed on the outer side of the small rotating shaft three, a connecting plate three is rotationally installed on the outer side of the small rotating shaft five, a small rotating shaft four is rotationally installed on the end of the connecting plate two away from the small rotating shaft three, a small rotating shaft six is rotationally installed on the end of the connecting plate three away from the small rotating shaft five, a small rotating shaft one is rotationally installed on the outer side of the ear plate two, a connecting plate one is rotationally installed on the outer side of the small rotating shaft one, a small rotating shaft two is rotationally installed on the end of the connecting plate one away from the small rotating shaft one, a pneumatic cylinder mounting plate is arranged between the small rotating shaft two and the small rotating shaft four and the small rotating shaft six, a first pneumatic jaw is fixedly installed on the bottom end of the pneumatic cylinder mounting plate, a jaw is fixedly installed on the movable end of the first pneumatic jaw, a middle horizontal rod is fixedly installed between the connecting plate one and the connecting plate two, a U-shaped plate is fixedly installed on the top end of the pneumatic cylinder mounting plate, an inner movable plate is arranged on the inner side of the U-shaped plate, a pneumatic cylinder one and a pneumatic cylinder two are fixedly installed on the two sides of the inner movable plate respectively, a floating joint one is arranged between the movable end of the pneumatic cylinder one and the U-shaped plate, and a floating joint two is arranged between the pneumatic cylinder two and the middle horizontal rod.

[0016] Through the above technical scheme, when in use, the pneumatic cylinder one and the pneumatic cylinder two are flexibly connected with the U-shaped plate and the middle horizontal rod through the floating joints respectively, and the pneumatic cylinder two can drive the middle horizontal rod to slightly swing around the small rotating shaft one and the small rotating shaft three through the floating joint two by being pushed or pulled back, at this time, the middle horizontal rod drives the pneumatic cylinder mounting plate and the first pneumatic jaw to move through the connecting plate one and the connecting plate two, the distance between the two front jaw assemblies can be increased or reduced, and PE clamping of different sizes can be adapted.

[0017] Preferably, the front jaw assembly is provided with two identical ones, the two front jaw assemblies are symmetrically distributed on both sides of the lower rack, the floating joint one is rotatably connected with the U-shaped plate, the floating joint two is rotatably connected with the middle horizontal rod, the connecting plate one, the connecting plate two and the connecting plate three are identical in structure, the connecting plate one and the connecting plate two are symmetrically distributed on both sides of the middle horizontal rod, and the connecting plate one, the connecting plate two and the connecting plate three are rotatably connected with the cylinder mounting plate.

[0018] Through the above technical scheme, the front jaw assemblies symmetrically distributed on both sides make the forces on both sides of the PE bag balanced, avoiding the bag body from deviating during the moving process.

[0019] Preferably, the driving assembly comprises a speed reducer, the speed reducer is fixedly installed at the lower part of the upper rack, output ends on both sides of the speed reducer are fixedly installed with rotating rods two, both ends of the rotating rod two are fixedly installed with driving handles, one end of the driving handle away from the rotating rod two is rotatably installed with a pull rod one, and the outer side of the rotating rod two is further fixedly installed with a protractor.

[0020] Through the above technical scheme, the speed reducer drives the driving handles at both ends of the rotating rod two to rotate, at this time, the driving handles drive the pull rod one to make circular reciprocating swing, and at the same time, the driving assembly can provide power output for the linkage bag moving mechanism, and can control the linkage bag moving mechanism to make forward and backward reciprocating swing.

[0021] Preferably, the driving handle and the pull rod one are provided with two identical ones, the two driving handles and the two pull rod ones are symmetrically distributed on both sides of the upper rack, and one end of the pull rod one away from the driving handle is rotatably connected with the front swing arm.

[0022] Through the above technical scheme, the driving handles and the pull rod ones on both sides can synchronously drive the front swing arm to move forward and backward, avoiding the inclination or movement jam of the front swing arm caused by unilateral force, and improving the stability of the linkage bag moving mechanism during movement.

[0023] Preferably, the middle swing rod assembly comprises a support frame, the support frame is fixedly installed at the top end of the lower rack, the support frame is provided with two identical ones, a main rotating shaft three is arranged between the two support frames, middle swing arms are arranged at both ends of the main rotating shaft three, a rotating rod three is arranged at one end of the middle swing arm away from the main rotating shaft three, a jaw seat is arranged on the side of the middle swing arm away from the linkage bag moving mechanism through the rotating rod three, a middle jaw is arranged at the lower part of the jaw seat, a rotating rod four is rotatably installed at the outer side of the jaw seat, a small connecting rod is fixedly installed at one end of the rotating rod four away from the jaw seat, and a middle driving rod is arranged between the small connecting rod and the middle swing arm.

[0024] By the above technical scheme, in use, the driving assembly drives the linkage bag moving mechanism to swing back and forth, in the process of swinging back and forth of the front swing arm, the front swing arm transmits power to the middle swing arm through the middle driving rod, at this time, the middle swing arm swings back and forth synchronously with the linkage bag moving mechanism around the main shaft three under the limitation of the small connecting rod, and then the front and back swinging of the middle clamping jaw at the lower part of the middle swing arm is realized.

[0025] Preferably, one end of the middle driving rod away from the middle swing arm is rotationally connected with the front swing arm, the small connecting rod is rotationally connected with the middle driving rod, the middle driving rod is rotationally connected with the middle swing arm, the middle swing arm, the third rotating rod, the clamping jaw seat, the middle clamping jaw, the fourth rotating rod and the small connecting rod are all provided with two same ones, and the two middle swing arms, the third rotating rod, the clamping jaw seat, the middle clamping jaw, the fourth rotating rod and the small connecting rod are symmetrically distributed about the vertical axis of the lower rack.

[0026] By the above technical scheme, the middle driving rod is connected with the front swing arm, so that the movement of the middle driving rod and the front swing arm is kept synchronous, and the symmetrical distribution of each component makes the clamping force of the middle clamping jaw on the PE bag balanced, avoiding the bag body from being wrinkled or deviated in the moving and conveying process, and further improving the moving and conveying precision of the mechanism.

[0027] Preferably, the front clamping unit comprises a fixing frame fixedly installed on the first inner cross beam of the lower rack, two side plates fixedly installed on the lower part of the fixing frame, a second pneumatic clamping jaw fixedly installed on the outer side of each of the two side plates, a clamping arm fixedly installed on the movable end of the second pneumatic clamping jaw, and a clamping block fixedly installed on the lower part of the clamping arm.

[0028] By the above technical scheme, in the process of incremental conveying of the PE bag, the PE bag grabbed from the station by the middle clamping jaw is first pre-clamped by the second pneumatic clamping jaw, and in the clamping process, the second pneumatic clamping jaw drives the clamping arm to drive the clamping block to open and close, at this time, the clamping block assists in clamping the PE bag grabbed for the first time.

[0029] Preferably, the middle clamping unit comprises side fixing plates fixedly connected with the outer frame by bolts and symmetrically arranged on the inner side of the lower frame, a cylinder three fixedly installed on the outer side of the side fixing plate, a push block fixedly installed on the movable end of the cylinder three, a vertical fixing plate fixedly installed on the end of the push block away from the cylinder three, a bracket fixedly installed on the side of the vertical fixing plate away from the cylinder three, a cylinder four rotatably installed on the inner side of the bracket, a floating joint three fixedly installed on the movable end of the cylinder four, a fixed column fixedly installed on the outer side of the vertical fixing plate, a fixed clamping rod fixedly installed on the side of the fixed column away from the vertical fixing plate, a rotating rod six rotatably installed on the lower part of the fixed clamping rod, an active clamping rod rotatably installed on the inner side of the lower part of the fixed clamping rod through the rotating rod six, a C-shaped connecting rod and a pull rod two arranged between the active clamping rod and the floating joint three, a rotating rod five arranged between the C-shaped connecting rod and the fixed clamping rod, and clamping strips arranged on the opposite sides of the fixed clamping rod and the active clamping rod.

[0030] The active clamping rod and the fixed clamping rod form an "X" type structure, the active clamping rod is located on the inner side of the fixed clamping rod, the rotating rod six penetrates the active clamping rod and the fixed clamping rod, the pull rod two is rotatably connected with the active clamping rod, and the pull rod two is rotatably connected with the C-shaped connecting rod.

[0031] Through the above technical scheme, when the linkage bag moving mechanism swings forward, the middle swing rod assembly swings forward at the same time, at this time, the middle swing rod assembly moves to the outer side of the front clamping unit, the middle swing rod assembly grabs the PE bag clamped by the front clamping unit, when the linkage bag moving mechanism swings backward, the PE bag grabbed by the middle swing rod assembly can move to the lower side of the middle clamping unit, the middle clamping unit clamps the PE bag grabbed by the middle swing rod assembly, and at the same time, the front clamping jaw assembly can also move the PE bag clamped by the last middle clamping unit, at this time, the work position incremental movement is completed, in the process of clamping the PE bag by the middle clamping unit, the cylinder three can drive the vertical fixing plate to move as a whole through the push block, the clamping position is adjusted to adapt to PE bags of different specifications, the cylinder four drives the active clamping rod to rotate around the rotating rod six through the floating joint three, the C-shaped connecting rod and the pull rod two, at this time, the distance between the active clamping rod and the lower part of the fixed clamping rod is reduced, and a vice type clamping mode is formed to clamp the PE bag.

[0032] Compared with the prior art, the PE bag incremental bag moving mechanism has the following beneficial effects:

[0033] 1. The PE bag incremental bag moving mechanism, the main shaft one and the main shaft two of the linkage bag moving mechanism are reliably supported through the bearing seat symmetrically distributed at both ends, the front swing arm and the rear swing arm are flexibly connected through the U-shaped seat and the rotating rod one and the main connecting rod, the driving handle on both sides of the driving assembly is matched with the pull rod one to drive, and the main connecting rod drives the jaw assembly to make stable reciprocating motion, the middle jaw, the jaw seat and other components of the middle swing rod assembly are also symmetrically distributed, synchronous action with the linkage bag moving mechanism is maintained under the linkage action of the middle driving rod, the forces on both sides of the PE bag are balanced, and problems such as bag body deviation and wrinkle in the moving process are effectively avoided;

[0034] 2. The PE bag incremental bag moving mechanism, the front jaw assembly cooperates with the cylinder one and the cylinder two to transmit power through the floating joint, drives the connecting plate to drive the cylinder mounting plate to move, realizes flexible increase and decrease of the distance between the two front jaw assemblies, the middle clamping unit adjusts the position of the vertical fixed plate through the cylinder three, and cooperates with the cylinder four to drive the movable clamping rod and the fixed clamping rod to form clamping, and can adapt to the bag moving of PE bags of different sizes;

[0035] 3. The PE bag incremental bag moving mechanism, the linkage bag moving mechanism driven by the speed reducer cooperates with the middle swing rod assembly to form cooperative action, cooperates with the ordered handover of the front clamping unit and the middle clamping unit, constructs the automatic cycle of grabbing, transmitting, clamping and transplanting, improves the production efficiency, and meets the needs of industrialized batch production. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 The three-dimensional structure of the present application is shown Figure One ;

[0037] Figure 2 The three-dimensional structure of the present application is shown Figure Two ;

[0038] Figure 3 The middle swing rod assembly installation structure of the present application is shown Figure One ;

[0039] Figure 4 The linkage bag moving mechanism and the driving assembly installation structure of the present application are shown

[0040] Figure 5 The three-dimensional structure of the present application is shown Figure Three ;

[0041] Figure 6 The middle swing rod assembly installation structure of the present application is shown Figure Two ;

[0042] Figure 7 The three-dimensional structure of the present application is shown Figure Four ;

[0043] Figure 8Schematic diagram of half section structure of linkage bag moving mechanism of the present application

[0044] Figure 9 Schematic diagram of three-dimensional structure of front clamping unit of the present application Figure One ;

[0045] Figure 10 Schematic diagram of three-dimensional structure of front clamping unit of the present application Figure Two ;

[0046] Figure 11 Schematic diagram of three-dimensional structure of middle clamping unit of the present application Figure One ;

[0047] Figure 12 Schematic diagram of three-dimensional structure of middle clamping unit of the present application Figure Two ;

[0048] Figure 13 Schematic diagram of three-dimensional structure of middle clamping unit of the present application ;

[0049] Figure 14 Schematic diagram of three-dimensional structure of front clamping claw assembly of the present application Figure One ;

[0050] Figure 15 Schematic diagram of three-dimensional structure of front clamping claw assembly of the present application Figure Two .

[0051] Wherein: 1, upper rack; 2, lower rack; 3, linkage bag moving mechanism; 301, bearing seat one; 302, bearing seat two; 303, main rotating shaft one; 304, main rotating shaft two; 305, front swing arm; 306, rear swing arm; 307, U-shaped seat; 308, rotating rod one; 309, main connecting rod; 4, front jaw assembly; 401, ear plate one; 402, ear plate two; 403, small rotating shaft one; 404, connecting plate one; 405, small rotating shaft two; 406, small rotating shaft three; 407, connecting plate two; 408, small rotating shaft four; 409, small rotating shaft five; 410, connecting plate three; 411, small rotating shaft six; 412, middle horizontal rod; 413, U-shaped plate; 414, inner movable plate; 415, air cylinder one; 416, floating joint one; 417, air cylinder two; 418, floating joint two; 419, first pneumatic jaw; 420, jaw; 421, air cylinder mounting plate; 5, connecting rod; 6, rear jaw assembly; 7, driving assembly; 701, speed reduction motor; 702, rotating rod two; 703, index plate; 704, driving handle; 705, pull rod one; 8, middle swing rod assembly; 801, support frame; 802, main rotating shaft three; 803, middle swing arm; 804, rotating rod three; 805, jaw seat; 806, middle jaw; 807, rotating rod four; 808, small connecting rod; 9, middle driving rod; 10, front clamping unit; 1001, fixed frame; 1002, lower side plate; 1003, second pneumatic jaw; 1004, clamping arm; 1005, clamping block; 11, middle clamping unit; 1101, side fixed plate; 1102, air cylinder three; 1103, push block; 1104, vertical fixed plate; 1105, support; 1106, air cylinder four; 1107, floating joint three; 1108, rotating rod five; 1109, C-shaped connecting rod; 1110, pull rod two; 1111, movable clamping rod; 1112, rotating rod six; 1113, clamping strip; 1114, fixed column; 1115, fixed clamping rod; 12, sealing unit; 13, first inner cross beam; 14, second inner cross beam. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0053] Embodiment one: as Figures 1-15As shown, the application provides a PE bag incremental bag moving mechanism, which comprises an upper rack 1 and a lower rack 2, the outer side of the lower rack 2 is provided with a linkage bag moving mechanism 3, the linkage bag moving mechanism 3 and the upper rack 1 are provided with a driving assembly 7, the upper side of the end of the lower rack 2 away from the driving assembly 7 is provided with a middle swing rod assembly 8, the middle swing rod assembly 8 and the linkage bag moving mechanism 3 are provided with a middle driving rod 9, the inner side of the lower rack 2 is fixedly installed with a first inner cross beam 13 and a second inner cross beam 14 along the axis direction, the inner side of the lower rack 2 is sequentially distributed with a front clamping unit 10, a middle clamping unit 11 and a sealing unit 12, the sealing unit 12 is fixed on the second inner cross beam 14 of the lower rack 2 through bolts;

[0054] The linkage bag moving mechanism 3 comprises two bearing seats one 301 and two bearing seats two 302, the inner side of the two bearing seats one 301 is rotatably installed with a main shaft one 303, the inner side of the two bearing seats two 302 is rotatably installed with a main shaft two 304, the two ends of the main shaft one 303 are provided with front swing arms 305, the two ends of the main shaft two 304 are provided with rear swing arms 306, the bottom ends of the two front swing arms 305 and the two rear swing arms 306 are respectively provided with U-shaped seats 307, the inner side of each U-shaped seat 307 is rotatably installed with a rotating rod one 308, the two U-shaped seats 307 are rotatably installed with main connecting rods 309 through the rotating rod one 308, the lower ends of the two main connecting rods 309 are respectively provided with front jaw assemblies 4 and connecting rods 5, and one end of each connecting rod 5 away from the main connecting rod 309 is provided with a rear jaw assembly 6.

[0055] Specifically, the two bearing seats one 301 and the two bearing seats two 302 are symmetrically distributed at the two ends of the main shaft one 303 and the main shaft two 304, and the bearing seat one 301 and the bearing seat two 302 are fixedly connected with the external rack. Advantage is that the bearing seat one 301 and the bearing seat two 302 are fixedly connected with the external rack, the main shaft one 303 and the main shaft two 304 are reliably rotatably supported through the bearing seats symmetrically distributed at the two ends, the front swing arms 305 and the rear swing arms 306 are flexibly rotatably connected with the main connecting rods 309 through the U-shaped seats 307 and the rotating rod one 308, so that the main connecting rods 309 can drive the front jaw assemblies 4 and the rear jaw assemblies 6 at the two ends to synchronously and stably swing forward and backward.

[0056] Embodiment two:

[0057] As shown, as an improvement on the last embodiment. Figures 2-15

[0058] ​Specifically, the front jaw assembly 4 comprises an ear plate one 401 and an ear plate two 402, the ear plate one 401 and the ear plate two 402 are fixedly installed on the outside of the main connecting rod 309, the outside of the ear plate one 401 is rotatably installed with a small shaft three 406 and a small shaft five 409, the outside of the small shaft three 406 is rotatably installed with a connecting plate two 407, the outside of the small shaft five 409 is rotatably installed with a connecting plate three 410, the end of the connecting plate two 407 away from the small shaft three 406 is rotatably installed with a small shaft four 408, the end of the connecting plate three 410 away from the small shaft five 409 is rotatably installed with a small shaft six 411, the outside of the ear plate two 402 is rotatably installed with a small shaft one 403, the outside of the small shaft one 403 is rotatably installed with a connecting plate one 404, the end of the connecting plate one 404 away from the small shaft one 403 is rotatably installed with a small shaft two 405, the small shaft two 405 is provided with a cylinder mounting plate 421 between the small shaft four 408 and the small shaft six 411, the bottom end of the cylinder mounting plate 421 is fixedly installed with a first pneumatic clamp 419, the movable end of the first pneumatic clamp 419 is fixedly installed with a clamp 420, the connecting plate one 404 and the connecting plate two 407 are fixedly installed with a middle cross rod 412, the top end of the cylinder mounting plate 421 is fixedly installed with a U-shaped plate 413, the inside of the U-shaped plate 413 is provided with an inner movable plate 414, the two sides of the inner movable plate 414 are respectively fixedly installed with a cylinder one 415 and a cylinder two 417, the movable end of the cylinder one 415 and the U-shaped plate 413 are provided with a floating joint one 416, the cylinder two 417 and the middle cross rod 412 are provided with a floating joint two 418. The advantage is that when in use, the cylinder one 415 and the cylinder two 417 are flexibly connected with the U-shaped plate 413 and the middle cross rod 412 through the floating joints respectively, the cylinder two 417 can push or pull back, the cylinder two 417 can push the middle cross rod 412 to swing slightly around the small shaft one 403 and the small shaft three 406 through the floating joint two 418, at this time, the middle cross rod 412 drives the cylinder mounting plate 421 to drive the first pneumatic clamp 419 to move through the connecting plate one 404 and the connecting plate two 407, the distance between the two front jaw assemblies 4 can be increased or reduced, and PE clamping of different sizes can be adapted.

[0059] Specifically, the front jaw assembly 4 is provided with two identical ones, the two front jaw assemblies 4 are symmetrically distributed on the two sides of the lower rack 2, the floating joint one 416 and the U-shaped plate 413 are rotatably connected, the floating joint two 418 and the middle cross rod 412 are rotatably connected, the connecting plate one 404, the connecting plate two 407 and the connecting plate three 410 are the same in structure, the connecting plate one 404 and the connecting plate two 407 are symmetrically distributed on the two sides of the middle cross rod 412, the connecting plate one 404, the connecting plate two 407 and the connecting plate three 410 are rotatably connected with the cylinder mounting plate 421. The advantage is that the symmetrical distribution of the front jaw assemblies 4 on the two sides makes the forces on the two sides of the PE bag balanced, avoiding the bag body from deviating during the moving and transferring process.

[0060] Example three:

[0061] As Figures 2-15 shown, as an improvement on the previous embodiment.

[0062] Specifically, the drive assembly 7 comprises a reduction motor 701 fixedly installed at the lower part of the upper rack 1, and a rotating rod two 702 fixedly installed at the two sides of the reduction motor 701. The two ends of the rotating rod two 702 are fixedly installed with drive handles 704, and the end of the drive handle 704 away from the rotating rod two 702 is rotatably installed with a pull rod one 705. The outer side of the rotating rod two 702 is also fixedly installed with a protractor 703. Advantage is that the reduction motor 701 drives the drive handles 704 at both ends to rotate through the rotating rod two 702, at this time the drive handles 704 drive the pull rod one 705 to do circular reciprocating swing, at the same time the drive assembly 7 can provide power output for the linkage bag moving mechanism 3, and can control the linkage bag moving mechanism 3 to do forward and backward reciprocating swing.

[0063] Specifically, the drive handles 704 and the pull rod one 705 are provided with the same two, and the two drive handles 704 and the pull rod one 705 are symmetrically distributed on the two sides of the upper rack 1. The end of the pull rod one 705 away from the drive handle 704 is rotatably connected with the front swing arm 305. Advantage is that the drive handles 704 and the pull rod one 705 on both sides can synchronously drive the front swing arm 305 to move forward and backward, avoiding the inclination or movement jam of the front swing arm 305 caused by unilateral force, and improving the stability of the linkage bag moving mechanism 3 when moving.

[0064] Example four:

[0065] As Figures 2-15 shown, as an improvement on the previous embodiment.

[0066] Specifically, the middle swing rod assembly 8 comprises a support frame 801 fixedly installed at the top end of the lower rack 2, the support frame 801 is provided with two identical ones, a main rotating shaft three 802 is arranged between the two support frames 801, a middle swing arm 803 is arranged at the two ends of the main rotating shaft three 802, a rotating rod three 804 is arranged at the end of the middle swing arm 803 away from the main rotating shaft three 802, a clamping jaw seat 805 is installed on the side of the middle swing arm 803 away from the linkage bag moving mechanism 3 through the rotating rod three 804, a middle clamping jaw 806 is arranged at the lower part of the clamping jaw seat 805, a rotating rod four 807 is rotatably installed on the outer side of the clamping jaw seat 805, a small connecting rod 808 is fixedly installed at the end of the rotating rod four 807 away from the clamping jaw seat 805, and a middle driving rod 9 is arranged between the small connecting rod 808 and the middle swing arm 803. The advantage is that during use, the driving assembly 7 drives the linkage bag moving mechanism 3 to reciprocate forward and backward, and in the process of reciprocating forward and backward of the front swing arm 305, the front swing arm 305 transmits power to the middle swing arm 803 through the middle driving rod 9, at this time, the middle swing arm 803 synchronously swings forward and backward around the main rotating shaft three 802 with the linkage bag moving mechanism 3 under the limitation of the small connecting rod 808, and then the forward and backward swinging of the middle clamping jaw 806 at the lower part of the middle swing arm 803 is realized.

[0067] Specifically, the end of the middle driving rod 9 away from the middle swing arm 803 is rotatably connected with the front swing arm 305, the small connecting rod 808 is rotatably connected with the middle driving rod 9, the middle driving rod 9 is rotatably connected with the middle swing arm 803, the middle swing arm 803, the rotating rod three 804, the clamping jaw seat 805, the middle clamping jaw 806, the rotating rod four 807 and the small connecting rod 808 are all provided with two identical ones, and the two middle swing arms 803, the rotating rod three 804, the clamping jaw seat 805, the middle clamping jaw 806, the rotating rod four 807 and the small connecting rod 808 are symmetrically distributed about the vertical axis of the lower rack 2. The advantage is that the middle driving rod 9 is connected with the front swing arm 305, so that the movement of the middle driving rod 9 and the front swing arm 305 is kept synchronous, and the symmetrical distribution of each component makes the clamping force of the middle clamping jaw 806 on the PE bag balanced, avoiding the bag body from being wrinkled or deviated during moving and transferring, and further improving the moving and transferring precision of the mechanism.

[0068] Embodiment five:

[0069] As shown in Figures 2-15 , as an improvement on the last embodiment.

[0070] Specifically, the front clamping unit 10 comprises a fixing frame 1001 fixedly installed on the first inner cross beam 13 of the lower rack 2, two lower side plates 1002 fixedly installed on the lower part of the two sides of the fixing frame 1001, a second pneumatic clamping jaw 1003 fixedly installed on the outer side of each of the two lower side plates 1002, a clamping arm 1004 fixedly installed on the movable end of the second pneumatic clamping jaw 1003, and a clamping block 1005 fixedly installed on the lower part of the clamping arm 1004. Advantage: In the process of incremental transportation of PE bags, the PE bag grabbed from the station by the middle clamping jaw 806 is first pre-clamped by the second pneumatic clamping jaw 1003. When clamping, the second pneumatic clamping jaw 1003 drives the clamping arm 1004 to drive the clamping block 1005 to open and close, and at this time the clamping block 1005 assists in clamping the PE bag grabbed for the first time.

[0071] Specifically, the middle clamping unit 11 comprises a side fixing plate 1101 fixedly connected with the outer rack by bolts and symmetrically distributed on the inner side of the lower rack 2, a cylinder three 1102 fixedly installed on the outer side of the side fixing plate 1101, a push block 1103 fixedly installed on the movable end of the cylinder three 1102, a vertical fixing plate 1104 fixedly installed on the end of the push block 1103 away from the cylinder three 1102, a support 1105 fixedly installed on the side of the vertical fixing plate 1104 away from the cylinder three 1102, a cylinder four 1106 rotatably installed on the inner side of the support 1105, a floating joint three 1107 fixedly installed on the movable end of the cylinder four 1106, a fixed column 1114 fixedly installed on the outer side of the vertical fixing plate 1104, a fixed clamping rod 1115 fixedly installed on the side of the fixed column 1114 away from the vertical fixing plate 1104, a rotating rod six 1112 rotatably installed on the lower part of the fixed clamping rod 1115, an active clamping rod 1111 rotatably installed on the inner side of the lower part of the fixed clamping rod 1115 through the rotating rod six 1112, a C-shaped connecting rod 1109 and a pull rod two 1110 arranged between the active clamping rod 1111 and the floating joint three 1107, a rotating rod five 1108 arranged between the C-shaped connecting rod 1109 and the fixed clamping rod 1115, and a clamping strip 1113 arranged on the opposite side of the fixed clamping rod 1115 and the active clamping rod 1111;

[0072] The movable clamping rod 1111 and the fixed clamping rod 1115 form an "X" structure, the movable clamping rod 1111 is located on the inner side of the fixed clamping rod 1115, the rotating rod six 1112 penetrates the movable clamping rod 1111 and the fixed clamping rod 1115, the second pulling rod 1110 is rotationally connected with the movable clamping rod 1111, and the second pulling rod 1110 is rotationally connected with the C-shaped connecting rod 1109. Advantage is that when the linkage bag moving mechanism 3 swings forward, the middle swing rod assembly 8 swings forward along with the linkage bag moving mechanism 3, at this time, the middle swing rod assembly 8 moves to the outer side of the front clamping unit 10, the middle swing rod assembly 8 grabs the PE bag clamped by the front clamping unit 10, when the linkage bag moving mechanism 3 swings backward, the PE bag grabbed by the middle swing rod assembly 8 can move below the middle clamping unit 11, the middle clamping unit 11 clamps the PE bag grabbed by the middle swing rod assembly 8, and at the same time, the front clamping jaw assembly 4 can also move the PE bag clamped by the last middle clamping unit 11, at this time, the work position incremental movement can be completed, in the process that the middle clamping unit 11 grabs the PE bag, the cylinder three 1102 can drive the vertical fixed plate 1104 to move as a whole through the push block 1103, the clamping position is adjusted to adapt to PE bags of different specifications, the cylinder four 1106 drives the movable clamping rod 1111 to rotate around the rotating rod six 1112 through the floating joint three 1107, the C-shaped connecting rod 1109 and the second pulling rod 1110, at this time, the distance between the movable clamping rod 1111 and the lower part of the fixed clamping rod 1115 is reduced, and the PE bag is clamped in a vice type clamping mode.

[0073] Working principle: in use, the deceleration motor 701 is powered on to drive the rotating rod 702 to rotate, the driving handle 704 at both ends of the rotating rod 702 rotates, and the power is transmitted to the front swing arm 305 of the linkage bag moving mechanism 3 through the pull rod 705, so that the front swing arm 305 rotates around the main rotating shaft 303, and at the same time, the front swing arm 305 drives the middle swing arm 803 of the middle swing rod assembly 8 to make synchronous forward and backward reciprocating swing around the main rotating shaft 802 through the middle driving rod 9, realizing the cooperative action of the linkage bag moving mechanism 3 and the middle swing rod assembly 8. When the linkage bag moving mechanism 3 moves forward, the rear jaw assembly 6 at the front end of the linkage bag moving mechanism 3 accurately aligns with the incoming PE bag and completes the grabbing, and then the linkage bag moving mechanism 3 starts to move backward, the rear jaw assembly 6 transports the PE bag just grabbed to the outside of the front clamping unit 10, at this time the second pneumatic jaw 1003 of the front clamping unit 10 drives the clamping arm 1004 to close the clamping block 1005, and the PE bag is stably grabbed, and then the rear jaw assembly 6 is opened to release the PE bag, completing the first transfer. Since the middle swing rod assembly 8 always moves synchronously with the linkage bag moving mechanism 3, when the linkage bag moving mechanism 3 moves forward again, the middle jaw 806 of the middle swing rod assembly 8 swings forward to the front clamping unit 10 to grab the PE bag grabbed by the front clamping unit 10, and the front clamping unit 10 opens the clamping block 1005 to complete the release, and then the linkage bag moving mechanism 3 and the middle swing rod assembly 8 move backward synchronously, and the middle jaw 806 transports the grabbed PE bag to the clamping range of the middle clamping unit 11. The cylinder three 1102 of the middle clamping unit 11 adjusts the position of the vertical fixed plate 1104 to adapt to the size of the PE bag through the push block 1103, and then the cylinder four 1106 drives the movable clamping rod 1111 to rotate around the rotating rod six 1112 through the floating joint three 1107, the C-shaped connecting rod 1109 and the pull rod two 1110, so that the movable clamping rod 1111 and the fixed clamping rod 1115 are closed to form clamping, and then the middle jaw 806 releases the PE bag. At the same time, the front jaw assembly 4 on the linkage bag moving mechanism 3 adjusts the jaw spacing through the cooperative action of the cylinder one 415 and the cylinder two 417 according to the size of the PE bag grabbed by the middle clamping unit 11 last time, and then grabs the PE bag and moves it to the specified station of the sealing unit 12 during the movement of the mechanism, and the sealing unit 12 completes the subsequent sealing operation. In this cycle, the front jaw assembly 4 can realize flexible adjustment of the spacing through the cylinder drive, and the middle clamping unit 11 can also adjust the clamping position through the cylinder three 1102, so that PE bags of different specifications can be stably transferred. The symmetrical distribution structure of each component ensures that the PE bag is balanced during the transfer process, avoids deviation or wrinkles, realizes the automatic incremental transportation of the PE bag from incoming to delivery, and the overall design is reasonable, which can speed up the production efficiency.

[0074] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A PE bag incremental bag transfer mechanism, comprising an upper frame (1) and a lower frame (2), characterized in that: A linkage bag-moving mechanism (3) is provided on the outer side of the lower frame (2). A drive assembly (7) is provided between the linkage bag-moving mechanism (3) and the upper frame (1). A middle swing rod assembly (8) is provided on the upper side of the lower frame (2) away from the drive assembly (7). A middle drive rod (9) is provided between the middle swing rod assembly (8) and the linkage bag-moving mechanism (3). A first inner crossbeam (13) and a second inner crossbeam (14) are fixedly installed on the inner side of the lower frame (2) along the axial direction. A front clamping unit (10), a middle clamping unit (11) and a sealing unit (12) are sequentially distributed on the inner side of the lower frame (2) along the axial direction. The sealing unit (12) is fixed to the second inner crossbeam (14) of the lower frame (2) by bolts. The linkage bag-moving mechanism (3) includes two bearing seats 1 (301) and two bearing seats 2 (302). A main shaft 1 (303) is rotatably mounted on the inner side of each of the two bearing seats 1 (301), and a main shaft 2 (304) is rotatably mounted on the inner side of each of the two bearing seats 2 (302). Front swing arms (305) are provided at both ends of the main shaft 1 (303), and rear swing arms (306) are provided at both ends of the main shaft 2 (304). The two front swing arms (305) and the two bearing seats 2 (302) are connected... The bottom end of the rear swing arm (306) is provided with a U-shaped seat (307). A rotating rod (308) is rotatably installed on the inner side of each U-shaped seat (307). A main connecting rod (309) is rotatably installed between the two U-shaped seats (307) through the rotating rod (308). The two ends of the lower part of the two main connecting rods (309) are respectively provided with a front gripper assembly (4) and a connecting rod (5). A rear gripper assembly (6) is provided at the end of each connecting rod (5) away from the main connecting rod (309).

2. The PE bag incremental bag transfer mechanism according to claim 1, characterized in that: Two bearing housings (301) and two bearing housings (302) are symmetrically distributed at both ends of the main shaft (303) and the main shaft (304), respectively. Both bearing housings (301) and bearing housings (302) are fixedly connected to the external frame.

3. The PE bag incremental bag transfer mechanism according to claim 1, characterized in that: The front gripper assembly (4) includes a first ear plate (401) and a second ear plate (402). The first ear plate (401) and the second ear plate (402) are fixedly installed on the outside of the main connecting rod (309). The outer side of the first ear plate (401) is rotatably mounted with a third small rotating shaft (406) and a fifth small rotating shaft (409). The outer side of the third small rotating shaft (406) is rotatably mounted with a second connecting plate (407). The outer side of the fifth small rotating shaft (409) is rotatably mounted with a third connecting plate (410). A small rotating shaft four (408) is rotatably mounted on the end of the connecting plate two (407) away from the small rotating shaft three (406). A small rotating shaft six (411) is rotatably mounted on the end of the connecting plate three (410) away from the small rotating shaft five (409). A small rotating shaft one (403) is rotatably mounted on the outer side of the ear plate two (402). A connecting plate one (404) is rotatably mounted on the outer side of the small rotating shaft one (403). The end of the connecting plate one (404) away from the small rotating shaft one (403) rotates... A small rotating shaft two (405) is installed, and a cylinder mounting plate (421) is provided between the small rotating shaft two (405) and the small rotating shaft four (408) and the small rotating shaft six (411). A first pneumatic gripper (419) is fixedly installed at the bottom end of the cylinder mounting plate (421), and a gripper (420) is fixedly installed at the movable end of the first pneumatic gripper (419). A middle crossbar (412) is fixedly installed between the connecting plate one (404) and the connecting plate two (407). The cylinder A U-shaped plate (413) is fixedly installed on the top of the mounting plate (421). An inner movable plate (414) is provided on the inner side of the U-shaped plate (413). A cylinder one (415) and a cylinder two (417) are fixedly installed on both sides of the inner movable plate (414). A floating joint one (416) is provided between the movable end of the cylinder one (415) and the U-shaped plate (413). A floating joint two (418) is provided between the cylinder two (417) and the middle crossbar (412).

4. The PE bag incremental bag transfer mechanism according to claim 3, characterized in that: Two identical front gripper assemblies (4) are provided, and the two front gripper assemblies (4) are symmetrically distributed on both sides of the lower frame (2). The first floating joint (416) is rotatably connected to the U-shaped plate (413), and the second floating joint (418) is rotatably connected to the middle crossbar (412). The first connecting plate (404), the second connecting plate (407), and the third connecting plate (410) have the same structure. The first connecting plate (404) and the second connecting plate (407) are symmetrically distributed on both sides of the middle crossbar (412). The first connecting plate (404), the second connecting plate (407), and the third connecting plate (410) are all rotatably connected to the cylinder mounting plate (421).

5. The PE bag incremental bag transfer mechanism according to claim 1, characterized in that: The drive assembly (7) includes a geared motor (701), which is fixedly installed on the lower part of the upper frame (1). Rotary rods (702) are fixedly installed on both sides of the output end of the geared motor (701). Drive handles (704) are fixedly installed on both ends of the rotary rods (702). A pull rod (705) is rotatably installed on the end of the drive handle (704) away from the rotary rods (702). An indexing plate (703) is also fixedly installed on the outer side of the rotary rods (702).

6. The PE bag incremental transfer mechanism according to claim 5, characterized in that: Two identical drive handles (704) and pull rods (705) are provided. The two drive handles (704) and pull rods (705) are symmetrically distributed on both sides of the upper frame (1). The end of the pull rod (705) away from the drive handle (704) is rotatably connected to the front swing arm (305).

7. The PE bag incremental bag transfer mechanism according to claim 1, characterized in that: The middle swing arm assembly (8) includes a support frame (801), which is fixedly installed on the top of the lower frame (2). Two identical support frames (801) are provided, and a main rotating shaft (802) is provided between the two support frames (801). Middle swing arms (803) are provided at both ends of the main rotating shaft (802). A rotating rod (804) is provided at the end of the middle swing arm (803) away from the main rotating shaft (802). 803) A gripper seat (805) is installed on the side away from the linkage bag transfer mechanism (3) via a rotating rod three (804). A middle gripper (806) is provided at the lower part of the gripper seat (805). A rotating rod four (807) is rotatably installed on the outer side of the gripper seat (805). A small connecting rod (808) is fixedly installed at the end of the rotating rod four (807) away from the gripper seat (805). A middle drive rod (9) is provided between the small connecting rod (808) and the middle swing arm (803).

8. The PE bag incremental bag transfer mechanism according to claim 7, characterized in that: The end of the middle drive rod (9) away from the middle swing arm (803) is rotatably connected to the front swing arm (305). The small connecting rod (808) is rotatably connected to the middle drive rod (9). The middle drive rod (9) is rotatably connected to the middle swing arm (803). The middle swing arm (803), the rotating rod three (804), the gripper seat (805), the middle gripper (806), the rotating rod four (807), and the small connecting rod (808) are all provided with two identical ones. The two middle swing arms (803), the rotating rod three (804), the gripper seat (805), the middle gripper (806), the rotating rod four (807), and the small connecting rod (808) are symmetrically distributed about the vertical axis of the lower frame (2).

9. A PE bag incremental bag transfer mechanism according to claim 1, characterized in that: The front clamping unit (10) includes a fixing frame (1001), which is fixedly installed on the first inner crossbeam (13) of the lower frame (2). Lower side plates (1002) are fixedly installed on both sides of the lower part of the fixing frame (1001). Second pneumatic grippers (1003) are fixedly installed on the outer sides of the two lower side plates (1002). A clamping arm (1004) is fixedly installed on the movable end of the second pneumatic gripper (1003). A clamping block (1005) is fixedly installed on the lower part of the clamping arm (1004).

10. A PE bag incremental transfer mechanism according to claim 1, characterized in that: The clamping unit (11) includes a side fixing plate (1101), which is fixedly connected to the external frame by bolts and is symmetrically distributed on the inner side of the lower frame (2). A cylinder three (1102) is fixedly installed on the outer side of the side fixing plate (1101). A push block (1103) is fixedly installed on the movable end of the cylinder three (1102). A vertical fixing plate (1104) is fixedly installed on the end of the push block (1103) away from the cylinder three (1102). A bracket (1105) is fixedly installed on the side of the vertical fixing plate (1104) away from the cylinder three (1102). A cylinder four (1106) is rotatably installed on the inner side of the bracket (1105). A floating joint three (1107) is fixedly installed on the movable end of the cylinder four (1106). A fixed column (1114) is also fixedly installed on the outer side of the plate (1104). A fixed clamp rod (1115) is fixedly installed on the side of the fixed column (1114) away from the vertical fixed plate (1104). A rotating rod six (1112) is rotatably installed on the lower part of the fixed clamp rod (1115). A movable clamp rod (1111) is rotatably installed on the inner side of the lower part of the fixed clamp rod (1115) through the rotating rod six (1112). A C-shaped connecting rod (1109) and a pull rod two (1110) are provided between the movable clamp rod (1111) and the floating joint three (1107). A rotating rod five (1108) is provided between the C-shaped connecting rod (1109) and the fixed clamp rod (1115). A clamping strip (1113) is provided on the opposite sides of the fixed clamp rod (1115) and the movable clamp rod (1111). The movable clamping rod (1111) and the fixed clamping rod (1115) form an "X" shaped structure. The movable clamping rod (1111) is located inside the fixed clamping rod (1115). The rotating rod six (1112) passes through the movable clamping rod (1111) and the fixed clamping rod (1115). The pull rod two (1110) is rotatably connected to the movable clamping rod (1111). The pull rod two (1110) is rotatably connected to the C-shaped connecting rod (1109).

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