A variable motion trajectory adjustment device for a film picking rod of a packaging machine

Abstract

The present invention discloses a variable motion trajectory adjustment device for a film picking rod of a packaging machine, comprising a frame, a conveying platform is arranged on the frame, and further comprising: a detection slot, which is opened on the conveying platform; a detection plate, which is elastically hinged in the detection slot; an impact rod, which is movably arranged below the detection slot; a linkage component, which is used to link the detection plate and the impact rod, when the angle code conveyed in an inverted V-shaped posture passes through the detection slot, the detection plate is compressed and rotates, and when the rotation reaches the maximum angle, the linkage component links the impact rod to trigger and pop out. The present invention realizes the transmission of packaging bottles of different specifications by regularly and irregularly adjusting the spacing between multiple partition plates, accurately controlling the spacing between each partition plate, and realizing the transmission of packaging bottles of different specifications. At the same time, it can adjust the transportation according to the number of packaging bottles in the packaging bottle group to meet the required number of film packages, and center them after the transmission is completed, meeting the use of different bottle widths and different groups of bottles, thereby improving the scope of application of the device.

Description

Technical Field

[0001] The invention relates to the technical field of packaging machines, and in particular to a variable motion trajectory adjustment device for a film picking rod of a packaging machine. Background Art

[0002] Film wrapping machines have the characteristics of fast film wrapping speed and good film wrapping posture, and are widely used in the field of beverage bottle film wrapping. The partitions on the film wrapping machine are used to group beverage bottles. The spacing between the partitions in the traditional film wrapping machine is a fixed width that matches the width of the standard bottle. The spacing between the partitions cannot be adjusted, so it is not suitable for film wrapping of special-shaped bottles with a width higher or lower than the standard bottle. The scope of application is small, so some shortcomings need to be improved.

[0003] Patent document CN212101152U disclosed a lifting and adjusting device and film winding equipment on the announcement date of December 8, 2020. Its technical scheme includes: a frame, a lifting mechanism, a tensioning mechanism and an adjustment assembly. The frame includes two relatively arranged side frames, the lifting mechanism includes a first linkage rod and two transverse support beams that move along the vertical guide rails respectively, the tensioning mechanism includes a second linkage rod and two tensioning assemblies respectively mounted on the two side frames, and the adjustment assembly includes an adjusting screw, a transmission member and a tensioning adjustment seat. The film winding equipment realizes that when product groups of different heights pass through the film winding equipment, the height of the film picking rod can be adjusted by adjusting the tightness of the chain of the lifting and adjusting device, thereby meeting the height requirements of the product group for the film picking rod.

[0004] As in the prior art of the above-mentioned patent, only the coating height of the bottle group can be adjusted. However, when faced with the packaging of bottle groups of various specifications, the spacing between the partition plates cannot be adjusted or needs to be adjusted manually by the staff, which affects the stability of the bottle group and the transmission accuracy. At the same time, it cannot meet the transmission of bottle groups with larger specifications. Therefore, a variable motion trajectory adjustment device for the film picking rod of a packaging machine is urgently needed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a variable motion trajectory adjustment device for a film picking rod of a packaging machine to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A variable motion trajectory adjustment device for a film picking rod of a packaging machine comprises a film picking conveying platform, both sides of which are fixedly mounted with a body plate, one side of which is fixedly mounted with a transmission platform, and the transmission platform and the film picking conveying platform jointly transport packaging bottles, and further comprises:

[0008] A support frame, which is fixedly mounted on the transmission platform;

[0009] Multiple partition plates, wherein a distance adjustment structure for adjusting the distance between the multiple partition plates is installed between the support frame and the multiple partition plates, and the distance adjustment structure realizes adaptive transmission of packaging bottles of different specifications;

[0010] An electric telescopic rod is fixedly arranged on one side of the conveying platform, and a group number adjustment structure used in conjunction with a plurality of partition plates is installed between the electric telescopic rod and the conveying platform, and the group number adjustment structure is used to adjust the number of bottles required to be packaged at a time;

[0011] A plurality of film lifting rods, which are used to lift up the plastic film and cover each group of packaging bottles conveyed by the conveyor table;

[0012] The track adjustment structure is used to connect the body plate and multiple film picking rods. The track adjustment structure is used to adjust the distance between the plastic film and each group of packaging bottles in the horizontal and vertical directions.

[0013] Preferably, the distance adjustment structure includes a hydraulic rod fixedly mounted on a support frame, a slide plate fixedly mounted on the driving end of the hydraulic rod, two racks fixedly mounted on the lower surface of the slide plate, connecting gears are mounted on both sides of the slide plate through a stabilizing frame, and the two connecting gears are meshed with corresponding racks, and the two connecting gears are connected to the corresponding partition plate through a force storage mechanism.

[0014] Preferably, the force storage mechanism includes a rotating rod fixedly mounted on two connecting gears respectively, and the rotating rod is rotatably arranged on a stabilizing frame, one end of each of the two rotating rods is fixedly mounted with a transmission gear, an arch frame is fixedly mounted on the transmission platform, a pad is slidably mounted on the arch frame, a sliding tooth plate is fixedly mounted on the pad, a spring is fixedly mounted on one side of the sliding tooth plate, and a long plate is fixedly mounted between one end of the spring and the corresponding partition plate.

[0015] Preferably, a fixed plate is fixedly installed on one side of the skateboard, and a plurality of sliding holes are symmetrically arranged on the fixed plate. Connecting guide blocks are slidably installed in the plurality of sliding holes, and the plurality of connecting guide blocks are all located on the same horizontal line, and the plurality of connecting guide blocks are all fixed between corresponding partition plates.

[0016] Preferably, the group number adjustment structure includes a telescopic plate fixedly mounted on the driving end of an electric telescopic rod, and one end of the telescopic plate is rotatably arranged on the conveying platform, and the electric telescopic rod drives the telescopic plate to move so as to connect the corresponding partition plates, thereby realizing the change of the group number of packaging bottles before packaging on the conveying platform, a vertical rod is fixedly mounted on the telescopic plate, a connecting plate is fixedly mounted on the vertical rod, an L-shaped frame is fixedly mounted on the conveying platform, and the connecting plate is slidably mounted on the L-shaped frame, a double-sided tooth plate is fixedly mounted on the connecting plate, and a centering mechanism used in conjunction with the double-sided tooth plate is installed on the conveying platform.

[0017] Preferably, the centering mechanism includes a sliding rod and two fixed brackets respectively fixedly mounted on both sides of the transmission platform, the sliding rod is slidably mounted with a connecting tooth plate, a guide plate is fixedly mounted on the side where the two connecting tooth plates are close to each other, a round rod and a cross rod are rotatably mounted between the two fixed brackets on the same side, a fixed tooth ring meshing with the corresponding connecting tooth plates is fixedly mounted on the two cross rods, pulleys are fixedly mounted on the two round rods and the two cross rods, a conveyor belt is rotatably sleeved between every two pulleys, a conveying gear is fixedly mounted at one end of the two round rods, and the two conveying gears are meshed with the double-sided tooth plate.

[0018] Preferably, the transmission gear and the double-sided toothed plate and the tooth number ratio between the fixed toothed ring and the connecting toothed plate are matched so that the distance moved by the guide plate is half of the extension length of the driving end of the electric telescopic rod.

[0019] Preferably, the trajectory adjustment structure includes cylinders respectively fixedly mounted on the two fuselage panels, the driving ends of the two cylinders are fixedly mounted with mounting blocks, the two mounting blocks are rotatably mounted with tensioning wheels, a tensioning wheel shaft is commonly fixedly mounted between the two tensioning wheels, the two fuselage panels are provided with long waist-shaped holes, and the tensioning wheel shaft slides in the two long waist-shaped holes, active sprockets are rotatably mounted on the two fuselage panels, the two fuselage panels are installed with vertical plates through horizontal adjustment screw mechanisms, the two vertical plates and the two fuselages A lifting and adjusting screw rod mechanism is installed on each plate, a fixing frame is installed between each of the two vertical plates and the corresponding body plates, a bracket is fixedly installed on each of the two fixing frames, guide rails are installed on multiple groups of the lifting and adjusting screw rod mechanisms, and two guide rails are fixedly installed on each of the two body plates, a chain is rotatably sleeved between the two tensioning wheels and the corresponding driving sprockets, a distance plate is fixedly installed between the two chains, and multiple film picking rods are evenly fixed between the two chains, and the two chains slide on the corresponding multiple guide rails and brackets.

[0020] Preferably, the two groups of horizontal adjustment screw mechanisms and the multiple groups of lifting and lowering adjustment screw mechanisms all include limit grooves respectively opened on the fuselage plate and the vertical plate, and screws are rotatably installed in the multiple limit grooves, and the multiple screws are installed with sliders through ball nuts, and the multiple sliders slide in the corresponding limit grooves, a connecting plate is fixedly installed on the slider, and the vertical plate is fixedly set on the connecting plate on the horizontal adjustment screw mechanism, and the two ends of the fixed frame are respectively fixedly set on the two connecting plates on the two groups of lifting and lowering adjustment screw mechanisms, and the multiple guide rails are respectively fixed on the corresponding connecting plates.

[0021] Preferably, a connecting shaft is installed between the two fuselage panels for common rotation, a handwheel is fixedly installed on one end of the connecting shaft, and the connecting shaft is connected to one end of the corresponding screw rod through two sets of bevel gear groups. Rotating the handwheel can drive the chain through the bevel gear group to achieve a change in the spacing in the vertical direction.

[0022] In the above technical solution, the beneficial effects of the present invention are:

[0023] The variable motion trajectory adjustment device of the film picking rod of the packaging machine can regularly and irregularly adjust the spacing between multiple partition plates to accurately control the spacing between each partition plate, thereby realizing the transmission of packaging bottles of different specifications. At the same time, it can adjust the transportation according to the number of packaging bottles in the packaging bottle group to meet the required number of film packages, and center them after the transmission is completed to meet the use of different bottle widths and different groups of bottles, thereby improving the applicability of the device.

[0024] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0025] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0027] Figure 1 A schematic diagram of the overall structure provided by an embodiment of the present invention;

[0028] Figure 2 The embodiment of the present invention provides Figure 1 Schematic diagram of the structure of the medium transmission station;

[0029] Figure 3 The embodiment of the present invention provides Figure 2 A schematic diagram of the structure from another perspective;

[0030] Figure 4 A schematic diagram of the structure of the group number adjustment structure provided in an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of the distance adjustment structure provided by an embodiment of the present invention;

[0032] Figure 6 The embodiment of the present invention provides Figure 1Schematic diagram of the structure of the middle pick film conveying platform;

[0033] Figure 7 The embodiment of the present invention provides Figure 4 A top view of

[0034] Figure 8 The embodiment of the present invention provides Figure 5 Structural cross-section view in the AA direction;

[0035] Fig. 9 A structural schematic diagram of the conveying direction of packaging bottles provided in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 2. Slide bar; 3. Sliding block; 4. Bevel gear set; 5. Film lifting rod; 6. Fixed frame; 7. Vertical plate; 8. Body plate; 9. Long waist-shaped hole; 10. Connecting tooth plate; 11. Tensioning wheel shaft; 12. Distance plate; 13. Hand wheel; 14. Limiting groove; 15. Lifting and lowering adjustment screw rod mechanism; 16. Guide rail; 17. Bracket; 18. Dividing plate; 19. Horizontal adjustment screw rod mechanism; 20. Connecting plate; 21. Chain; 22. Transmission platform; 23. Rotating rod; 24. Driving sprocket; 25 , cylinder; 26, tensioning wheel; 27, long board; 28, connecting shaft; 29, hydraulic rod; 30, skateboard; 31, rack; 32, connecting gear; 33, support frame; 34, transmission gear; 35, sliding tooth plate; 36, round rod; 37, spring; 38, transmission gear; 39, double-sided tooth plate; 40, electric telescopic rod; 41, telescopic plate; 42, connecting guide block; 43, fixed plate; 44, guide plate; 45, fixed gear ring; 46, conveyor belt; 47, fixed bracket. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0039] See also Figure 1-Figure 5 An embodiment of the present invention provides a variable motion trajectory adjustment device for a film picking rod of a packaging machine, comprising a film picking conveying platform, a body plate 8 is fixedly installed on both sides of the film picking conveying platform, a transmission platform 22 is fixedly installed on one side of the film picking conveying platform, and the transmission platform 22 and the film picking conveying platform jointly convey packaging bottles. The packaging bottles have many specifications on the market due to different packaged liquids.

[0040] It also includes: a support frame 33, which is fixedly mounted on the transmission platform 22; a plurality of partition plates 18, which are used to separate and transmit the packaging bottles to prevent the packaging bottles from tipping over. A distance adjustment structure for adjusting the distance between the plurality of partition plates 18 is installed between the support frame 33 and the plurality of partition plates 18, and the distance adjustment structure realizes the adaptive transmission of packaging bottles of different specifications; the distance adjustment structure includes a hydraulic rod 29 fixedly mounted on the support frame 33, a slide plate 30 is fixedly mounted on the driving end of the hydraulic rod 29, two racks 31 are fixedly mounted on the lower surface of the slide plate 30, and stabilizing frames are fixedly mounted on both sides of the slide plate 30, connecting gears 32 are rotatably mounted on the two stabilizing frames, and the two connecting gears 32 are meshed with corresponding racks 31.

[0041] The two connecting gears 32 are connected to the corresponding partition plate 18 through a power storage mechanism. The power storage mechanism includes a rotating rod 23 fixedly mounted on the two connecting gears 32, and the rotating rod 23 is rotatably arranged on the stabilizing frame. One end of the two rotating rods 23 is fixedly mounted with a transmission gear 34. The transmission platform 22 is fixedly mounted with an arch frame ( Figure 2 As shown in the figure, drawn but not marked), a pad is slidably installed on the arch frame, a sliding tooth plate 35 is fixedly installed on the pad, a spring 37 is fixedly installed on one side of the sliding tooth plate 35, and a long plate 27 is fixedly installed between one end of the spring 37 and the corresponding partition plate 18; a fixed plate 43 is fixedly installed on one side of the slide plate 30, a plurality of sliding holes are symmetrically arranged on the fixed plate 43, and connecting guide blocks 42 are slidably installed in the plurality of sliding holes, the plurality of connecting guide blocks 42 are all located on the same horizontal line, and the plurality of connecting guide blocks 42 are all fixed between the corresponding partition plates 18.

[0042] See also Figure 3 , Figure 5 , multiple sliding holes are distributed in a trapezoidal shape as a whole (refer to Figure 3The enlarged part), wherein the sliding hole in the middle is in a vertical state, the second sliding hole and the third sliding hole from left to right are in a state of interconnection, and the two long plates 27 are fixedly connected to the partition plates 18 at the third sliding holes from left to right and from right to left, and the lowest point and the highest point of the plurality of sliding holes are the same; when the hydraulic rod 29 is driven to extend its driving end, the slide plate 30 can be driven to move downward, and the downward movement of the slide plate 30 drives the fixed plate 43 to move downward as well, and under the cooperation of the plurality of sliding holes and the connecting guide blocks 42, the plurality of connecting guide blocks 42 are driven to move upward relative to the sliding holes, so that the distance between the plurality of connecting guide blocks 42 gradually increases, thereby driving the distance between the plurality of partition plates 18 to increase, and when the hydraulic rod 29 is driven to shorten its driving end, the distance between the plurality of partition plates 18 is reduced, thereby realizing the adaptive transmission of a plurality of groups of packaging bottles of different specifications, and this stage is the equal spacing adjustment between the partition plates 18; when the hydraulic rod 29 is driven to extend its driving end to a certain stage, the plurality of connecting guide blocks 42 on both sides will move in the sliding holes on both sides The shape setting causes irregular movement. This adjustment method can be used for packaging and sealing of packaging bottles of larger specifications (such as L). When the driving end of the hydraulic rod 29 is extended, the rack 31 is driven to move downward, and the rack 31 drives the connecting gear 32, the rotating rod 23 and the transmission gear 34 to rotate, thereby driving the sliding toothed plate 35 to move toward the long plate 27 to squeeze the spring 37. This process occurs in the regular movement between the multiple connecting guide blocks 42. When the connecting guide block 42 reaches the uppermost end of the multiple sliding holes, the compressed elastic force of the spring 37 is released, so that the long plate 27 drives the partition plate 18 connected thereto (the partition plate 18 connected to the third connecting guide block 42 from left to right and from right to left) to move to both sides. By adjusting the elastic force of the spring 37 and the horizontal length of the connected sliding holes, the required moving distance of the partition plate 18 can be achieved, thereby realizing the transmission of large-sized packaging bottles on a certain width conveyor 22. It is easy to adjust and is suitable for packaging bottles of various specifications. It can adapt to the size of the conveyor 22 and keep the partition plate 18 stable after adjustment.

[0043] See also Figure 3-Figure 4, and also includes an electric telescopic rod 40, which is fixedly arranged on one side of the conveying platform 22, and a group number adjustment structure used in conjunction with multiple partition plates 18 is installed between the electric telescopic rod 40 and the conveying platform 22, and the group number adjustment structure is used to adjust the number of packages required for a single package of packaging bottles; the group number adjustment structure includes a telescopic plate 41 fixedly installed on the driving end of the electric telescopic rod 40 (the driving end of the electric telescopic rod 40 is fixed to one end of the telescopic plate 41), and one end of the telescopic plate 41 is rotatably arranged on the conveying platform 22, and the telescopic plate 41 has a telescopic function. The electric telescopic rod 40 drives the telescopic plate 41 to move and can connect the corresponding partition plate 18 to achieve the change of the group number of packaging bottles before packaging on the conveying platform 22, a vertical rod is fixedly installed on the telescopic plate 41, and a connecting plate is fixedly installed on the vertical rod, an L-shaped frame is fixedly installed on the conveying platform 22, and the connecting plate is slidably installed on the L-shaped frame, and a double-sided tooth plate 39 is fixedly installed on the connecting plate, and the teeth on both ends of the double-sided tooth plate 39 are arranged in opposite directions up and down.

[0044] When the number of groups of packaging bottles to be sealed is less than the number of spacings between the plurality of partition plates 18, the driving end of the electric telescopic rod 40 is controlled to extend, driving the telescopic plate 41 to move and connect with one end of the required partition plate 18. At the same time, the rotation setting of the telescopic plate 41 can make it tilted to facilitate the conveyance of the packaging bottles on the conveying platform 22. When the telescopic plate 41 moves, it can drive the double-sided toothed plate 39 to move to the right (with the connection plate) through the connection plate. Figure 4 for reference).

[0045] The conveying platform 22 is provided with a centering mechanism used in conjunction with the double-sided tooth plate 39. The centering mechanism can center the conveyed packaging bottle as a whole so that the bottle is located in the middle of the conveying platform 22 as a whole, which is convenient for subsequent plastic sealing processing. The centering mechanism includes a slide bar 2 and two fixed brackets 47 respectively fixedly installed on both sides of the conveying platform 22. A connecting tooth plate 10 is slidably installed on the slide bar 2. A guide plate 44 is fixedly installed on the side where the two connecting tooth plates 10 are close to each other. The guide plate 44 is arranged in an arc shape, and the arc shape of the two guide plates 44 can still block the two outermost partition plates 18 when the two are in the closest position (to prevent the bottle from being conveyed through this position). At the same time, the arc shape can ensure the stability of the bottle transmission. The two fixed brackets 47 on the same side are rotatably mounted with round rods 36 and cross rods, and the two cross rods are fixedly mounted with fixed toothed rings 45 meshing with the corresponding connecting toothed plates 10. The two round rods 36 and the two cross rods are fixedly mounted with pulleys, and a conveyor belt 46 is rotatably sleeved between every two pulleys. A conveying gear 38 is fixedly mounted at one end of the two round rods 36, and the two conveying gears 38 are meshed with the double-sided toothed plate 39; the gear ratio between the conveying gear 38 and the double-sided toothed plate 39 and the fixed toothed ring 45 and the connecting toothed plate 10 is matched, so that the moving distance of the guide plate 44 is half of the extension length of the driving end of the electric telescopic rod 40, ensuring that the packaging bottle is always in the middle position of the conveying platform 22.

[0046] When the double-sided toothed plate 39 moves, it can drive the two transmission gears 38 to rotate in opposite directions, thereby driving the two round rods 36 to rotate in opposite directions, and driving the cross bar and the fixed toothed ring 45 to rotate through the conveyor belt 46. The rotation of the two fixed toothed rings 45 drives the two connecting toothed plates 10 to approach each other, thereby realizing the mutual approach of the two guide plates 44 and realizing the centered transmission of each group of packaging bottles.

[0047] See also Figure 1 , Figure 6-Figure 9, and also includes a plurality of film-picking rods 5, which are used to pick up the plastic film and cover each group of packaging bottles transmitted by the transmission platform 22; a trajectory adjustment structure, which is used to connect the fuselage plate 8 and the plurality of film-picking rods 5, the trajectory adjustment structure is used to adjust the distance between the plastic film and each group of packaging bottles in the horizontal and vertical directions, the trajectory adjustment structure includes cylinders 25 respectively fixedly mounted on the two fuselage plates 8, the driving ends of the two cylinders 25 are fixedly mounted with mounting blocks, the two mounting blocks are rotatably mounted with tensioning wheels 26, and a tensioning wheel shaft 11 is fixedly mounted between the two tensioning wheels 26, the two fuselage plates 8 are provided with long waist-shaped holes 9, and the tensioning wheel shaft 11 slides in the two long waist-shaped holes 9, and the two fuselage plates 8 are rotatably mounted with driving sprockets 24, and the driving sprockets 24 are rotatably mounted with the existing external The driving end of the motor is fixedly connected, the two body plates 8 are both equipped with vertical plates 7 through a horizontal adjustment screw mechanism 19, and lifting adjustment screw mechanisms 15 are installed on the two vertical plates 7 and the two body plates 8. A fixing frame 6 is installed between the two vertical plates 7 and the corresponding body plates 8, and a bracket 17 is fixedly installed on the two fixing frames 6. Guide rails 16 are installed on multiple sets of lifting adjustment screw mechanisms 15, and two guide rails 16 are also fixedly installed on the two body plates 8. Chains 21 are rotatably sleeved between the two tensioning wheels 26 and the corresponding driving sprockets 24, and a distance plate 12 is fixedly installed between the two chains 21, and multiple film picking rods 5 are evenly fixed between the two chains 21, and the two chains 21 slide on the corresponding multiple guide rails 16 and brackets 17.

[0048] The two sets of horizontal adjustment screw rod mechanisms 19 and the multiple sets of lifting and lowering adjustment screw rod mechanisms 15 include limit grooves 14 respectively opened on the fuselage plate 8 and the vertical plate 7, and screw rods are rotatably installed in the multiple limit grooves 14. The multiple screw rods are installed with sliders 3 through ball nuts, and the multiple sliders 3 slide in the corresponding limit grooves 14. A connecting plate 20 is fixedly installed on the slider 3, and the vertical plate 7 is fixedly set on the connecting plate 20 on the horizontal adjustment screw rod mechanism 19, and the two ends of the fixing frame 6 are respectively fixed on the two connecting plates 20 on the two sets of lifting and lowering adjustment screw rod mechanisms 15, and the multiple guide rails 16 are respectively fixed on the corresponding connecting plates 20. A connecting shaft 28 is rotatably installed between the two fuselage plates 8, and a hand wheel 13 is fixedly installed on one end of the connecting shaft 28. The connecting shaft 28 is connected to one end of the corresponding screw rod through two sets of bevel gear groups 4. Rotating the hand wheel 13 can drive the chain 21 through the bevel gear group 4 to achieve the change of its vertical spacing.

[0049] The group of packaging bottles to be wrapped with film is transported from the conveying platform 22 to the film picking conveying platform. The group of bottles moved from the conveying platform 22 to the film picking conveying platform will press the front end of the film. At this time, the group of packaging bottles and the film on the film picking conveying platform move forward together. Then the driving component (i.e., the external motor, which is a component on the existing machine) drives the two active sprockets 24 to rotate synchronously, drives the left and right chains 21 to move, and synchronously drives the film picking rod 5 to move back and forth around the film picking conveying platform, so that the film picking rod 5 moves upward from the gap between the conveying platform 22 and the film picking conveying platform. In the process of the film picking rod 5 moving upward from the gap between the conveying platform 22 and the film picking conveying platform, the film picking rod 5 will pull the film from the conveying platform 22 and the film picking conveying platform. The film is picked out from the gap of the conveying platform, and as the film picking rod 5 continues to move forward, and since the moving speed of the film picking rod 5 is greater than the conveying speed of the film picking conveying platform (the setting of the prior art), the film picking rod 5 will move the picked film forward to cover the group of packaging bottles to be wrapped, and the film picking rod 5 continues to move forward. Before the group of packaging bottles to be wrapped leaves the film picking conveying platform, the film picking rod 5 will first move downward from the film picking conveying platform, and at the same time bring the rear half of the film into the gap in front of the film picking conveying platform. As the group of packaging bottles to be wrapped moves forward, the group of packaging bottles will move out of the film picking conveying platform while the group of packaging bottles will move forward against the film and press the film on the front and lower part of the group of packaging bottles, thereby completing the film wrapping of the group of packaging bottles to be wrapped.

[0050] Since the film lifting rod 5 is fixed between the two chains 21, the motion trajectory and film lifting height of the film lifting rod 5 can be adjusted by lifting and adjusting the screw rod mechanism 15. When the film lifting height and motion trajectory of the film lifting rod 5 need to be adjusted, the driving cylinder 25 synchronously drives the tensioning wheels 26 on both sides to move to the right ( Figure 8 ), so that the chain 21 remains in a loose state, and at the same time, the chain 21 is prevented from falling off under the setting of multiple guide rails 16. Then, the hand wheel 13 is turned to adjust the tilted lifting and adjusting screw mechanism 15, the horizontal adjustment screw mechanism 19 in the horizontal direction, and the lifting and adjusting screw mechanism 15 on the vertical plate 7, respectively, to drive the corresponding screw to rotate. The screw drives another screw to rotate synchronously through the bevel gear set 4 and the fixed frame 6, thereby driving the chain bracket 17 on the two screws to rise and fall synchronously, so that the chain bracket 17 synchronously drives the chain 21 and the film lifting rod 5 to rise and fall. When the height and trajectory of the film lifting rod 5 match the height and size of the bottle group to be wrapped and packaged, stop adjusting the screw, and then drive the cylinder 25 through the tensioning wheel 26 to move the tensioning wheel shaft 11 on both sides to the left along the corresponding long waist-shaped hole 9 (refer to Figure 8 ), synchronously driving the corresponding tensioning wheels 26 on both sides to move forward and tighten the corresponding chains 21, thereby completing the adjustment of the height and movement trajectory of the film picking rod 5.

[0051] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A variable motion trajectory adjustment device for a film picking rod of a packaging machine, comprising a film picking conveying platform, a body plate (8) is fixedly installed on both sides of the film picking conveying platform, a transmission platform (22) is fixedly installed on one side of the film picking conveying platform, and the transmission platform (22) and the film picking conveying platform jointly convey packaging bottles, characterized in that: Also includes: A support frame (33) fixedly mounted on the transmission platform (22); A plurality of partition plates (18), wherein a distance adjustment structure for adjusting the distance between the plurality of partition plates (18) is installed between the support frame (33) and the plurality of partition plates (18), and the distance adjustment structure realizes adaptive transmission of packaging bottles of different specifications; An electric telescopic rod (40) is fixedly arranged on one side of the conveying platform (22), and a group number adjustment structure used in conjunction with a plurality of partition plates (18) is installed between the electric telescopic rod (40) and the conveying platform (22), wherein the group number adjustment structure is used to adjust the number of bottles required to be packaged at a time; A plurality of film lifting rods (5) for lifting the plastic film and covering each group of packaging bottles delivered by the conveying platform (22); A track adjustment structure, which is used to connect the body plate (8) and the plurality of film picking rods (5), and the track adjustment structure is used to adjust the distance between the plastic film and each group of packaging bottles in the horizontal and vertical directions; The two fuselage panels (8) are both mounted with a vertical panel (7) via a horizontal adjustment screw rod mechanism (19), and the two vertical panels (7) and the two fuselage panels (8) are both mounted with a lifting adjustment screw rod mechanism (15). The two groups of the horizontal adjustment screw rod mechanisms (19) and the plurality of lifting adjustment screw rod mechanisms (15) each include a limit groove (14) respectively arranged on the fuselage panel (8) and the vertical panel (7), and screw rods are rotatably mounted in the plurality of limit grooves (14). Slide blocks (3) are all installed via ball nuts, and the plurality of slide blocks (3) slide in corresponding limit grooves (14), a connecting plate (20) is fixedly installed on the slide block (3), and the vertical plate (7) is fixedly arranged on the connecting plate (20) on the horizontal adjustment screw rod mechanism (19), and the two ends of the fixed frame (6) are respectively fixedly arranged on two connecting plates (20) on two sets of lifting adjustment screw rod mechanisms (15), and the plurality of guide rails (16) are respectively fixed on the corresponding connecting plates (20).

2. The variable motion trajectory adjustment device for the film picking rod of the packaging machine according to claim 1 is characterized in that: The distance adjustment structure comprises a hydraulic rod (29) fixedly mounted on a support frame (33); a slide plate (30) is fixedly mounted on the driving end of the hydraulic rod (29); two racks (31) are fixedly mounted on the lower surface of the slide plate (30); connecting gears (32) are mounted on both sides of the slide plate (30) via a stabilizing frame, and the two connecting gears (32) are meshed with corresponding racks (31); and the two connecting gears (32) are connected to corresponding partition plates (18) via a force storage mechanism.

3. The variable motion trajectory adjustment device for the film picking rod of the packaging machine according to claim 2 is characterized in that: The power storage mechanism comprises a rotating rod (23) respectively fixedly mounted on two connecting gears (32), and the rotating rod (23) is rotatably arranged on a stabilizing frame, one end of each of the two rotating rods (23) is fixedly mounted with a transmission gear (34), an arch frame is fixedly mounted on the transmission platform (22), a cushion block is slidably mounted on the arch frame, a sliding tooth plate (35) is fixedly mounted on the cushion block, a spring (37) is fixedly mounted on one side of the sliding tooth plate (35), and a long plate (27) is fixedly mounted between one end of the spring (37) and a corresponding partition plate (18).

4. The variable motion trajectory adjustment device for the film picking rod of the packaging machine according to claim 3 is characterized in that: A fixing plate (43) is fixedly mounted on one side of the slide plate (30), and a plurality of sliding holes are symmetrically arranged on the fixing plate (43), and a connecting guide block (42) is slidably mounted in each of the plurality of sliding holes, and the plurality of connecting guide blocks (42) are all located on the same horizontal line, and the plurality of connecting guide blocks (42) are fixed to corresponding partition plates (18).

5. The variable motion trajectory adjustment device for the film picking rod of the packaging machine according to claim 1 is characterized in that: The group number adjustment structure comprises a telescopic plate (41) fixedly mounted on the driving end of an electric telescopic rod (40), and one end of the telescopic plate (41) is rotatably arranged on the transmission platform (22). The electric telescopic rod (40) drives the telescopic plate (41) to move so as to connect with the corresponding partition plate (18), thereby realizing the change of the group number of the packaging bottles before packaging on the transmission platform (22). A vertical rod is fixedly mounted on the telescopic plate (41), and a connecting plate is fixedly mounted on the vertical rod. An L-shaped frame is fixedly mounted on the transmission platform (22), and the connecting plate is slidably mounted on the L-shaped frame. A double-sided tooth plate (39) is fixedly mounted on the connecting plate, and a centering mechanism used in conjunction with the double-sided tooth plate (39) is installed on the transmission platform (22).

6. The variable motion trajectory adjustment device for the film picking rod of the packaging machine according to claim 5 is characterized in that: The centering mechanism comprises a slide bar (2) and two fixed brackets (47) respectively fixedly mounted on both sides of the transmission platform (22); a connecting tooth plate (10) is slidably mounted on the slide bar (2); a guide plate (44) is fixedly mounted on the side where the two connecting tooth plates (10) are close to each other; a round rod (36) and a cross rod are rotatably mounted between the two fixed brackets (47) on the same side; a fixed tooth ring (45) meshing with the corresponding connecting tooth plate (10) is fixedly mounted on the two cross rods; pulleys are fixedly mounted on the two round rods (36) and the two cross rods; a conveyor belt (46) is rotatably sleeved between each two pulleys; a conveyor gear (38) is fixedly mounted on one end of the two round rods (36), and the two conveyor gears (38) are meshed with the double-sided tooth plate (39).

7. The variable motion trajectory adjustment device for the film-lifting rod of a packaging machine according to claim 6, characterized in that: The gear ratios between the transmission gear (38) and the double-sided gear plate (39) and between the fixed gear ring (45) and the connecting gear plate (10) are matched so that the distance moved by the guide plate (44) is half of the extended length of the driving end of the electric telescopic rod (40).

8. The variable motion trajectory adjustment device for the film-lifting rod of a packaging machine according to claim 1, characterized in that: The track adjustment structure comprises cylinders (25) respectively fixedly mounted on two fuselage plates (8), the driving ends of the two cylinders (25) are fixedly mounted with mounting blocks, the two mounting blocks are rotatably mounted with tensioning wheels (26), a tensioning wheel shaft (11) is commonly fixedly mounted between the two tensioning wheels (26), the two fuselage plates (8) are each provided with a long waist-shaped hole (9), and the tensioning wheel shaft (11) slides in the two long waist-shaped holes (9), the two fuselage plates (8) are each rotatably mounted with a driving sprocket (24), and a fixed sprocket (24) is installed between the two vertical plates (7) and the corresponding fuselage plates (8). The invention relates to a frame (6), wherein the two fixed frames (6) are fixedly mounted with a bracket (17), the plurality of lifting and adjusting screw rod mechanisms (15) are fixedly mounted with a guide rail (16), the two fuselage plates (8) are respectively fixedly mounted with two guide rails (16), a chain (21) is rotatably sleeved between the two tensioning wheels (26) and the corresponding driving sprockets (24), a distance plate (12) is fixedly mounted between the two chains (21), and the plurality of film picking rods (5) are evenly fixed between the two chains (21), and the two chains (21) slide on the corresponding plurality of guide rails (16) and the bracket (17).

9. The variable motion trajectory adjustment device for the film picking rod of a packaging machine according to claim 1, characterized in that: A connecting shaft (28) is rotatably mounted between the two fuselage plates (8), one end of the connecting shaft (28) is fixedly mounted with a hand wheel (13), and the connecting shaft (28) is connected to one end of a corresponding screw rod via two bevel gear sets (4). Rotating the hand wheel (13) can drive the chain (21) via the bevel gear set (4) to change the spacing in the vertical direction.

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