Progressive increasing type bag moving mechanism for PE bags

Abstract

The invention relates to the technical field of PE bag moving, and discloses a PE bag progressive increase type bag 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, and a middle swing rod assembly is arranged on the upper side of the end, away from the driving assembly, of the lower rack. 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 in the axis direction, and a front clamping unit, a middle clamping unit and a sealing unit are sequentially distributed on the inner side of the lower rack in the axis direction. According to the progressive increase type bag moving mechanism for the PE bags, the linkage bag moving mechanism driven by the gear motor and the middle swing rod assembly form cooperative action and are matched with ordered connection of the front clamping unit and the middle clamping unit, automatic circulation of grabbing, transferring, clamping and transplanting is constructed, the production efficiency is improved, and the requirement for industrial batch production is met.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PE bag moving technology, 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 the 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 closed loop of PE bags from production to application.

[0003] Chinese invention patent No. CN104494932A discloses an automatic bag moving mechanism. The automatic bag moving mechanism comprises two side plates, a bag moving mechanism, a bag sucking mechanism, and a bag containing disc fixed to the outside of the side plates. The bag moving mechanism comprises a bag moving cylinder support plate, a bag moving cylinder seat, a bag moving cylinder, and a bag moving plate. The bag moving cylinder support plate and the bag containing disc are symmetrically installed on the outside of the other side plate. The bag moving cylinder seat is fixed above the bag moving cylinder support plate. The bag moving cylinder is fixed to the bag moving cylinder seat. The bag sucking mechanism comprises a bag sucking cylinder support plate, a bag sucking cylinder seat, a bag sucking cylinder, and a bag sucking plate. The bag sucking cylinder support plate is fixed to the end of the bag moving cylinder rod. The bag sucking cylinder seat is located above the bag sucking cylinder support 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. Chinese invention patent No. CN111605794A discloses a bag moving mechanism and its working method. The bag moving mechanism comprises a material bag filling and clamping mechanism. The lower part of the material bag filling and clamping mechanism is provided with a material bag moving clamp. The side of the material bag filling and clamping mechanism is provided with a bag clamping opening moving mechanism.

[0004] Preferably, the material bag filling and clamping mechanism comprises a support plate installed on a machine frame. The middle part of the support plate is provided with a filling cylinder below. The filling cylinder is symmetrically provided with clamping mechanisms on the left and right sides. Each clamping mechanism comprises a first clamping limiting cylinder and a second clamping limiting cylinder. A clamping finger installation plate for left and right movement is arranged between the limiting plates of the first and second clamping limiting cylinders. A piston rod downward clamping pneumatic finger is installed on the clamping finger installation plate. A clamping block is arranged on the clamping pneumatic finger.

[0005] 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. 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 being opened, which cannot realize the subsequent operation of the bag moving, resulting in low efficiency and only meeting small-scale production. 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.

[0006] Therefore, the present application provides a PE bag incremental moving mechanism. SUMMARY

[0007] 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.

[0008] The technical solution 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. 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.

[0009] Preferably, the two bearing seats one and the two bearing seats two are symmetrically arranged at the two ends of the main shaft one and the main shaft two, and the bearing seats one and the bearing seats two are fixedly connected with the external rack.

[0010] By the above technical scheme, the bearing seat one and the bearing seat two are fixedly connected with the external rack, the main rotating shaft one and the main rotating shaft two are reliably rotationally supported through the bearing seats symmetrically distributed at 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 two ends to synchronously and stably swing forward and backward.

[0011] Preferably, the front jaw assembly comprises the ear plate one and the ear plate two, the ear plate one and the ear plate two are fixedly installed on the outer side of the main connecting rod, the outer side of the ear plate one is rotationally installed with the small rotating shaft three and the small rotating shaft five, the outer side of the small rotating shaft three is rotationally installed with the connecting plate two, the outer side of the small rotating shaft five is rotationally installed with the connecting plate three, the end of the connecting plate two away from the small rotating shaft three is rotationally installed with the small rotating shaft four, the end of the connecting plate three away from the small rotating shaft five is rotationally installed with the small rotating shaft six, the outer side of the ear plate two is rotationally installed with the small rotating shaft one, the outer side of the small rotating shaft one is rotationally installed with the connecting plate one, the end of the connecting plate one away from the small rotating shaft one is rotationally installed with the small rotating shaft two, the small rotating shaft two is provided with the cylinder mounting plate between the small rotating shaft four and the small rotating shaft six, the bottom end of the cylinder mounting plate is fixedly installed with the first pneumatic jaw, the movable end of the first pneumatic jaw is fixedly installed with the jaw, the connecting plate one and the connecting plate two are fixedly installed with the middle cross rod, the top end of the cylinder mounting plate is fixedly installed with the U-shaped plate, the inner side of the U-shaped plate is provided with the inner movable plate, the two sides of the inner movable plate are respectively fixedly installed with the cylinder one and the cylinder two, the movable end of the cylinder one and the U-shaped plate are provided with the floating joint one, the cylinder two and the middle cross rod are provided with the floating joint two.

[0012] Through the above technical scheme, in use, the cylinder one and the cylinder two are flexibly connected with the U-shaped plate and the middle cross rod through the floating joints respectively, the cylinder two can drive the middle cross 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 cross rod drives the cylinder mounting plate to drive 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.

[0013] Preferably, the front jaw assembly is provided with two same ones, the two front jaw assemblies are symmetrically distributed on the two sides of the lower rack, the floating joint one and the U-shaped plate are rotationally connected, the floating joint two and the middle cross rod are rotationally connected, the connecting plate one, the connecting plate two and the connecting plate three are the same in structure, the connecting plate one and the connecting plate two are symmetrically distributed on the two sides of the middle cross rod, and the connecting plate one, the connecting plate two and the connecting plate three are rotationally connected with the cylinder mounting plate.

[0014] Through the above technical scheme, the front jaw assemblies symmetrically distributed on the two sides make the forces on the two sides of the PE bag balanced, and the bag body is prevented from deviating during the moving and conveying process.

[0015] 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 rods 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.

[0016] 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.

[0017] Preferably, the driving handle and the pull rod one are provided with the same two, the two driving handles and the pull rod one 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.

[0018] Through the above technical scheme, the driving handles and the pull rod one 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 when moving.

[0019] 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 the same two, a main rotating shaft three is arranged between the two support frames, both ends of the main rotating shaft three are provided with middle swing arms, one end of the middle swing arm away from the main rotating shaft three is provided with a rotating rod three, one side of the middle swing arm away from the linkage bag moving mechanism is installed with a jaw seat through the rotating rod three, the lower part of the jaw seat is provided with a middle jaw, the outer side of the jaw seat is rotatably installed with a rotating rod four, one end of the rotating rod four away from the jaw seat is fixedly installed with a small connecting rod, and the small connecting rod and the middle swing arm are provided with a middle driving rod.

[0020] Through the above technical scheme, in use, the driving assembly drives the linkage bag moving mechanism to make forward and backward reciprocating swing, in the process of the forward and backward reciprocating swing 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 forward and backward around the main rotating shaft three and the linkage bag moving mechanism under the limitation of the small connecting rod, and then the forward and backward swing of the middle jaw at the lower part of the middle swing arm is realized.

[0021] Preferably, one end of the middle driving rod away from the middle swing arm is rotatably connected with the front swing arm, the small connecting rod and the middle driving rod are rotatably connected, the middle driving rod and the middle swing arm are rotatably connected, the middle swing arm, the rotating rod three, the jaw seat, the middle jaw, the rotating rod four and the small connecting rod are provided with the same two, and the two middle swing arms, the rotating rod three, the jaw seat, the middle jaw, the rotating rod four and the small connecting rod are symmetrically distributed about the vertical axis of the lower rack.

[0022] Through the 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, the symmetrically distributed components balance the clamping force of the middle clamping jaw on the PE bag, the bag body is prevented from being wrinkled or deviated during the conveying process, and the conveying precision of the mechanism is further improved.

[0023] Preferably, the front clamping unit comprises a fixing frame fixedly installed on the first inner cross beam of the lower frame, two lower side plates fixedly installed on the lower part of the two sides of the fixing frame, a second pneumatic clamping jaw fixedly installed on the outer side of each of the two lower 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.

[0024] Through the technical scheme, in the process of incremental conveying of the PE bag, the PE bag grabbed by the middle clamping jaw from the work station is pre-clamped by the second pneumatic clamping jaw, and when clamping, the second pneumatic clamping jaw drives the clamping arm to drive the clamping block to open and close, so that the clamping block assists in clamping the PE bag grabbed for the first time.

[0025] Preferably, the middle clamping unit comprises a side fixing plate fixedly connected with the external frame through bolts and symmetrically distributed 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. 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.

[0026] With the above technical solution, when the bag-moving mechanism swings forward, the middle swing rod assembly swings forward simultaneously with the bag-moving mechanism. At this time, the middle swing rod assembly moves to the outside of the front clamping unit and grabs the PE bag held by the front clamping unit. When the bag-moving mechanism swings backward, the PE bag grabbed by the middle swing rod assembly can move to the bottom of the middle clamping unit, and the middle clamping unit clamps the PE bag grabbed by the middle swing rod assembly. At the same time, the front gripper assembly can also move the PE bag grabbed by the previous middle clamping unit. At this time, the incremental movement of the workstation is completed. During the process of the middle clamping unit grabbing the PE bag, cylinder three can drive the vertical fixed plate to move as a whole through the push block to adjust the clamping position to adapt to different specifications of PE bags. Cylinder four transmits power through floating joint three, C-shaped connecting rod and pull rod two to drive the movable clamping rod to rotate around the rotating rod six. At this time, the distance between the movable clamping rod and the lower part of the fixed clamping rod is reduced, forming a vise-like clamping method to clamp the PE bag.

[0027] Compared with the prior art, the present invention provides a PE bag incremental bag transfer mechanism, which has the following beneficial effects: 1. The incremental bag transfer mechanism for PE bags features a main rotating shaft 1 and main rotating shaft 2 that are reliably supported by bearing seats symmetrically distributed at both ends. The front and rear swing arms are flexibly connected to the main connecting rod via U-shaped seats and rotating rod 1. The drive handles and pull rod 1 on both sides of the drive assembly provide transmission, ensuring that the main connecting rod drives the gripper assembly to perform smooth reciprocating motion. The middle gripper and gripper seat of the middle swing rod assembly are also symmetrically distributed. Under the linkage of the middle drive rod, they move synchronously with the bag transfer mechanism, ensuring that the PE bag is subjected to balanced force on both sides and effectively avoiding problems such as bag displacement and wrinkles during the transfer process. 2. The PE bag incremental bag transfer mechanism uses the coordinated action of cylinder one and cylinder two to transmit power through a floating joint, pushing the middle crossbar to drive the connecting plate and the cylinder mounting plate to move, thus flexibly increasing or decreasing the distance between the two front gripper assemblies. The middle clamping unit uses cylinder three to push the push block to adjust the position of the vertical fixed plate, and works with cylinder four to drive the movable clamping rod and the fixed clamping rod to form a clamping mechanism, which can adapt to the transfer of PE bags of different sizes. 3. The incremental bag transfer mechanism for PE bags, driven by a geared motor, works in concert with the central swing arm assembly. Combined with the orderly handover between the front clamping unit and the central clamping unit, it constructs an automated cycle of gripping, transferring, clamping, and transplanting, improving production efficiency and meeting the needs of industrialized mass production. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure One ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure Two ; Figure 3 Figure 1 is a schematic diagram of the installation structure of the swing lever assembly in the present application; Figure One ; Figure 4 Figure 2 is a schematic diagram of the installation structure of the linkage bag moving mechanism and the driving assembly in the present application; Figure 5 Figure 3 is a schematic diagram of the three-dimensional structure in the present application; Figure Three ; Figure 6 Figure 4 is a schematic diagram of the installation structure of the swing lever assembly in the present application; Figure Two ; Figure 7 Figure 5 is a schematic diagram of the three-dimensional structure in the present application; Figure Four ; Figure 8 Figure 6 is a schematic diagram of the half-section structure of the linkage bag moving mechanism in the present application; Figure 9 Figure 7 is a schematic diagram of the three-dimensional structure of the front clamping unit in the present application; Figure One ; Figure 10 Figure 8 is a schematic diagram of the three-dimensional structure of the front clamping unit in the present application; Figure Two ; Figure 11 Figure 9 is a schematic diagram of the three-dimensional structure of the middle clamping unit in the present application; Figure One ; Figure 12 Figure 10 is a schematic diagram of the three-dimensional structure of the middle clamping unit in the present application; Figure Two ; Figure 13 Figure 11 is a schematic diagram of the installation structure of the front clamping jaw assembly in the present application; Figure 14 Figure 12 is a schematic diagram of the three-dimensional structure of the front clamping jaw assembly in the present application; Figure One ; Figure 15 Figure 13 is a schematic diagram of the three-dimensional structure of the front clamping jaw assembly in the present application; Figure Two .

[0029] 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

[0030] 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.

[0031] 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 along the axis direction, the sealing unit 12 is fixed on the second inner cross beam 14 of the lower rack 2 through bolts; 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 a main connecting rod 309 through the rotating rod one 308, the lower ends of the two main connecting rods 309 are respectively provided with a front jaw assembly 4 and a connecting rod 5, and the end of each connecting rod 5 away from the main connecting rod 309 is provided with a rear jaw assembly 6.

[0032] 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 symmetrically distributed bearing seats at the two ends, the front swing arm 305 and the rear swing arm 306 are flexibly rotatably connected with the main connecting rod 309 through the U-shaped seat 307 and the rotating rod one 308, so that the main connecting rod 309 can drive the front jaw assembly 4 and the rear jaw assembly 6 at the two ends to synchronously and stably swing forward and backward.

[0033] Embodiment two: As Figures 2-15 shown, as an improvement on the last embodiment.

[0034] 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.

[0035] 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.

[0036] Example three: As Figures 2-15 shown, as an improvement on the previous embodiment.

[0037] Specifically, the drive assembly 7 comprises a reduction motor 701, which is fixedly installed at the lower part of the upper rack 1. The output ends of the reduction motor 701 on both sides are fixedly installed with a rotating rod two 702. The ends of the rotating rod two 702 are fixedly installed with a driving handle 704. The end of the driving 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. The advantage is that the reduction motor 701 drives the driving handle 704 at both ends to rotate through the rotating rod two 702. At this time, the driving handle 704 drives the pull rod one 705 to make a 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 make forward and backward reciprocating swing.

[0038] Specifically, the driving handle 704 and the pull rod one 705 are provided with the same two, and the two driving handles 704 and the pull rod one 705 are symmetrically distributed on both sides of the upper rack 1. The end of the pull rod one 705 away from the driving handle 704 is rotatably connected with the front swing arm 305. The advantage is that the driving handle 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.

[0039] Example Four: As Figures 2-15 shown, as an improvement on the previous embodiment.

[0040] Specifically, the middle swing rod assembly 8 comprises a support frame 801, which is fixedly installed at the top end of the lower rack 2. The support frame 801 is provided with the same two. A main rotating shaft three 802 is arranged between the two support frames 801. The two ends of the main rotating shaft three 802 are provided with a middle swing arm 803. The end of the middle swing arm 803 away from the main rotating shaft three 802 is provided with a rotating rod three 804. The side of the middle swing arm 803 away from the linkage bag moving mechanism 3 is installed with a jaw seat 805 through the rotating rod three 804. The lower part of the jaw seat 805 is provided with a middle jaw 806. The outer side of the jaw seat 805 is rotatably installed with a rotating rod four 807. The end of the rotating rod four 807 away from the jaw seat 805 is fixedly installed with a small connecting rod 808. The small connecting rod 808 and the middle swing arm 803 are provided with a middle driving rod 9. The advantage is that in use, the drive assembly 7 drives the linkage bag moving mechanism 3 to reciprocate forward and backward. 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 swings forward and backward around the main rotating shaft three 802 synchronously with the linkage bag moving mechanism 3 under the limitation of the small connecting rod 808, thereby realizing the forward and backward swing of the middle jaw 806 at the lower part of the middle swing arm 803.

[0041] Specifically, one end of the middle driving rod 9 away from the middle swing arm 803 is rotationally connected with the front swing arm 305, the small connecting rod 808 is rotationally connected with the middle driving rod 9, the middle driving rod 9 is rotationally connected with the middle swing arm 803, the middle swing arm 803, the third rotating rod 804, the jaw seat 805, the middle jaw 806, the fourth rotating rod 807 and the small connecting rod 808 are all provided with two same ones, and the two middle swing arms 803, the third rotating rods 804, the jaw seats 805, the middle jaws 806, the fourth rotating rods 807 and the small connecting rods 808 are symmetrically distributed about the vertical axis of the lower rack 2. 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 symmetrically distributed components make the clamping force of the middle jaw 806 on the PE bag balanced, avoiding the bag body from being wrinkled or deviated during the transfer process, and further improving the transfer precision of the mechanism.

[0042] Example five: As shown in Figures 2-15 the previous embodiment is improved.

[0043] Specifically, the front clamping unit 10 includes a fixed 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 fixed frame 1001, a second pneumatic 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 jaw 1003, and a clamping block 1005 fixedly installed on the lower part of the clamping arm 1004. Advantage is that during the incremental transportation of the PE bag, the PE bag grabbed by the middle jaw 806 is first pre-clamped by the second pneumatic jaw 1003, and during clamping, the second pneumatic 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.

[0044] Specifically, the middle clamping unit 11 comprises a side fixed plate 1101, the side fixed plate 1101 is fixedly connected with the external rack through bolts, and is symmetrically distributed on the inner side of the lower rack 2. The outer side of the side fixed plate 1101 is fixedly installed with a cylinder three 1102, the movable end of the cylinder three 1102 is fixedly installed with a push block 1103, the end of the push block 1103 away from the cylinder three 1102 is fixedly installed with a vertical fixed plate 1104, one side of the vertical fixed plate 1104 away from the cylinder three 1102 is fixedly installed with a support 1105, the inner side of the support 1105 is rotatably installed with a cylinder four 1106, the movable end of the cylinder four 1106 is fixedly installed with a floating joint three 1107, the outer side of the vertical fixed plate 1104 is also fixedly installed with a fixed column 1114, one side of the fixed column 1114 away from the vertical fixed plate 1104 is fixedly installed with a fixed clamping rod 1115, the lower part of the fixed clamping rod 1115 is rotatably installed with a rotating rod six 1112, the inner side of the lower part of the fixed clamping rod 1115 is rotatably installed with a movable clamping rod 1111 through the rotating rod six 1112, and the movable clamping rod 1111 and the floating joint three 1107 are provided with a C-shaped connecting rod 1109 and a pull rod two 1110. The C-shaped connecting rod 1109 is provided with a rotating rod five 1108 between the C-shaped connecting rod 1109 and the fixed clamping rod 1115. The opposite sides of the fixed clamping rod 1115 and the movable clamping rod 1111 are provided with clamping strips 1113. The movable clamping rod 1111 and the fixed clamping rod 1115 form an “X” type 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 pull rod two 1110 is rotatably connected with the movable clamping rod 1111, and the pull rod two 1110 is rotatably connected with the C-shaped connecting rod 1109. The movable clamping rod 1111 and the fixed clamping rod 1115 form an “X” type 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 pull rod two 1110 is rotatably connected with the movable clamping rod 1111, and the pull rod two 1110 is rotatably connected with the C-shaped connecting rod 1109. The movable clamping rod 1111 and the fixed clamping rod 1115 form an “X” type 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 pull rod two 1110 is rotatably connected with the movable clamping rod 1111, and the pull rod two 1110 is rotatably connected with the C-shaped connecting rod 1109.

[0045] 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.

[0046] 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 moving mechanism, comprising an upper rack (1) and a lower rack (2), characterized in that: 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) along the axis direction, the sealing unit (12) is fixed on the second inner cross beam (14) of the lower rack (2) by bolts; 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 rotating shaft one (303), the inner side of the two bearing seats two (302) is rotatably installed with a main rotating shaft two (304), the two ends of the main rotating shaft one (303) are provided with front swing arms (305), the two ends of the main rotating 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 a main connecting rod (309) through the rotating rod one (308), the lower ends of the two main connecting rods (309) are respectively provided with a front jaw assembly (4) and a connecting rod (5), and the end of each connecting rod (5) away from the main connecting rod (309) is provided with a rear jaw assembly (6).

2. The PE bag incremental bag moving mechanism according to claim 1, characterized in that: The two bearing seats one (301) and the two bearing seats two (302) are respectively and symmetrically distributed at the two ends of the main rotating shaft one (303) and the main rotating shaft two (304), and the bearing seat one (301) and the bearing seat two (302) are fixedly connected with the external rack.

3. The PE bag incremental bag moving mechanism according to claim 1, characterized in that: 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 jaw (419), the movable end of the first pneumatic jaw (419) is fixedly installed with a jaw (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).

4. The PE bag incremental bag moving mechanism according to claim 3, characterized in that: The front jaw assembly (4) is provided with two same 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).

5. The PE bag incremental bag moving mechanism according to claim 1, characterized in that: The driving assembly (7) comprises a reduction motor (701), the reduction motor (701) is fixedly installed on the lower part of the upper rack (1), the output end on the both sides of the reduction motor (701) is fixedly installed with a rotating rod two (702), the both ends of the rotating rod two (702) are fixedly installed with driving handles (704), the end, away from the rotating rod two (702), of the driving handle (704) 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 disc (703).

6. The PE bag incremental bag moving mechanism according to claim 5, characterized in that: The driving handle (704) and the pull rod one (705) are provided with the same two, the two driving handles (704) and the two pull rod ones (705) are symmetrically distributed on the both sides of the upper rack (1), and the end, away from the driving handle (704), of the pull rod one (705) is rotatably connected with the front swing arm (305).

7. The PE bag incremental bag moving mechanism according to claim 1, characterized in that: The middle swing rod assembly (8) comprises a support frame (801), the support frame (801) is fixedly installed on the top end of the lower rack (2), the support frame (801) is provided with the same two, a main rotating shaft three (802) is arranged between the two support frames (801), the both ends of the main rotating shaft three (802) are provided with middle swing arms (803), the end, away from the main rotating shaft three (802), of the middle swing arm (803) is provided with a rotating rod three (804), the side, away from the linkage bag moving mechanism (3), of the middle swing arm (803) is installed with a claw seat (805) through the rotating rod three (804), the lower part of the claw seat (805) is provided with a middle claw (806), the outer side of the claw seat (805) is rotatably installed with a rotating rod four (807), the end, away from the claw seat (805), of the rotating rod four (807) is fixedly installed with a small connecting rod (808), and the small connecting rod (808) and the middle swing arm (803) are provided with a middle driving rod (9).

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

9. The PE bag incremental bag moving mechanism according to claim 1, characterized in that: 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 both sides of the lower part 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).

10. The PE bag incremental bag moving mechanism according to claim 1, characterized in that: The middle clamping unit (11) comprises a side fixing plate (1101) fixedly connected with the external rack through bolts and symmetrically arranged 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 clamping strips (1113) arranged on the opposite sides of the fixed clamping rod (1115) and the active clamping rod (1111). The active clamping rod (1111) and the fixed clamping rod (1115) form an "X" structure, the active clamping rod (1111) is located on the inner side of the fixed clamping rod (1115), the rotating rod six (1112) penetrates the active clamping rod (1111) and the fixed clamping rod (1115), the pull rod two (1110) is rotatably connected with the active clamping rod (1111), and the pull rod two (1110) is rotatably connected with the C-shaped connecting rod (1109).

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