Bag opening mechanism capable of keeping bag opening flat in filling process
By using a parallelogram connecting rod mechanism to drive the straight movement of the bag clip during the filling process, the problem of the bag mouth easily wrinkled during the filling process is solved, and the flatness of the bag mouth and the sealing quality are improved.
Patent Information
- Application Number
- CN202420294521.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-18
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-02-18
AI Technical Summary
During the filling process, the early filling mechanism causes the swing of the bag clamping arm to rotate and swing, causing wrinkles and wrinkles to occur in the bag, affecting the sealing quality and stacking consistency.
The parallelogram connecting rod mechanism is used to drive the bag clips of the left and right bag arms to move in a straight line to ensure that the bag mouth remains flat during filling.
Through the design of the parallelogram linkage mechanism, the bag mouth will not wrinkle during filling, and the sealing quality and stacking consistency are improved.
Smart Images
Figure CN222452617U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a bag supporting mechanism which can keep the bag opening flat during the filling process. Background Art
[0002] In the early stage of the filling mechanism, when the filling port opens or closes the packaging bag mouth, the left and right bag clamping arms that move with the filling port rotate and swing relative to the filling port when they move towards or oppositely. The rotation and swinging will cause wrinkles on the bag mouth of the clamped material, which will cause the seal to deform and wrinkle easily during sealing, resulting in sealing failure. The deformation also causes inconsistency during stacking. Summary of the invention
[0003] In view of the problems existing in the prior art, the utility model provides a bag-supporting mechanism which can keep the bag opening flat during the filling process, and adopts a parallelogram connecting rod to drive the left and right bag clamping arms to move in a straight line, thereby ensuring that the bag opening will not wrinkle during the filling process.
[0004] In order to achieve the above purpose, the technical solution of the utility model is:
[0005] A bag-supporting mechanism capable of keeping the bag mouth flat during the filling process comprises a frame, a filling mouth is arranged on the frame, bag mouth clamping arms are arranged on both sides of the filling mouth, and the bag mouth clamping arms on both sides move towards or oppositely with the opening and closing of the filling mouth, wherein: the bag mouth clamping arms comprise a bag mouth clamp, the bag mouth clamp is fixed on a clamp seat, a clamping cylinder is arranged on the clamp seat, the bag mouth clamp is pushed to open and close by the clamping cylinder, a driving fixing plate is arranged on the opposite sides of the clamp seat, two parallel and spaced connecting rods are arranged, namely a driving connecting rod and a follower connecting rod, the driving connecting rod and the follower connecting rod are of equal length, and the driving connecting rod and the follower connecting rod are of equal length. One end of the connecting rod is rotatably connected to the driving fixed plate through a rotating shaft, and a driving rotating shaft is arranged on the frame. The other end of the driving connecting rod is connected and fixed to the driving rotating shaft, and the other end of the follower connecting rod is rotatably connected to the hanging plate arranged on the frame through an axle pin. A clamping arm moving cylinder is connected to the driving rotating shafts of the bag clamping arms on both sides through a pushing mechanism, and drives the driving rotating shafts on both sides to rotate forward and reversely. The driving rotating shafts rotating forward and reversely on both sides drive the driving connecting rods on both sides to swing forward and reversely. The driving connecting rods swinging forward and reversely drive the bag clamps of the bag clamping arms on both sides to move horizontally toward or oppositely through the driving fixed plates and the follower connecting rods on both sides.
[0006] The scheme is further as follows: the pushing mechanism includes a rotating shaft seat, a rotating fork and a rotating push arm, the rotating shaft seat is fixedly connected to the frame, a fork rotating shaft is arranged on the rotating shaft seat, the fork rotating shaft passes through the rotating shaft seat and goes out from the outside and inside of the rotating shaft seat, the fork rotating shaft outside the rotating shaft seat is connected to the rotating fork and is driven to rotate by the rotating fork, the telescopic arm of the clamping arm moving cylinder is connected to the fork end of the rotating fork, and two moving forks are arranged on the fork rotating shaft inside the rotating shaft seat up and down or left and right respectively, the two moving forks are respectively connected to one end of the rotating push arm, the other ends of the two rotating push arms are respectively hinged to swing rods, and the other ends of the two swing rods are respectively connected to the driving shafts of the bag clamping arms on both sides; filling process During the process, the telescopic arm of the clamping arm moving cylinder drives the rotating fork to swing in an arc with the fork rotating shaft as the center, and the rotating fork doing the circular arc swinging drives the transmission shaft to rotate, and the rotating transmission shaft drives the two moving forks opposite to the transmission shaft up and down to rotate left and right, and the two moving forks doing the left and right rotation drive the two rotating push arms to move relatively, and the two rotating push arms doing the relative movement respectively drive the driving shafts of the bag mouth clamping arms on both sides to rotate forward and reverse through the rocker rod, so that the rotating driving shaft drives the driving connecting rod to swing forward and reverse, and the driving connecting rod doing the forward and reverse swinging drives the bag mouth clamps of the bag mouth clamping arms on both sides to move horizontally toward or oppositely through the driving fixing plates and the follower connecting rod on both sides.
[0007] The utility model has the beneficial effect that the parallelogram connecting rod mechanism is adopted to drive the bag opening clamps of the left and right bag clamping arms to move in a straight line, thereby ensuring that the bag opening will not wrinkle during the filling process. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a front structural schematic diagram of the utility model;
[0009] Figure 2 This is a schematic diagram of the reverse structure of the utility model. Figure 1 Rear view of
[0010] Figure 3 This is a side structural diagram of the utility model. Figure 1 Left view of
[0011] Figure 4 This is a schematic diagram of the front structure of the utility model without the front baffle;
[0012] Figure 5 It is a schematic diagram of the shaft side structure of the utility model without the front, left and right baffles;
[0013] Figure 6 This is a schematic diagram of the axial side structure of the bag opening clamping arm of the utility model;
[0014] Figure 7 It is a schematic diagram of the bag mouth clamping arm of the filling mechanism rotating and swinging;
[0015] Figure 8It is a schematic diagram of the horizontal swing of the bag opening clamping arm of the filling mechanism of this embodiment. DETAILED DESCRIPTION
[0016] Figure 7 The diagram shows the rotation and swinging of the bag opening clamping arm of the traditional filling mechanism; Figure 8 The diagram shows the horizontal swinging of the bag opening clamping arm to be implemented as an improvement of the present embodiment.
[0017] As an improvement, a bag-supporting mechanism that can keep the bag mouth flat during the filling process, such as Figures 1 to 6 As shown, the bag-supporting mechanism capable of keeping the bag opening flat during the filling process comprises a frame 1, a filling feed port 2 is arranged in the middle of the upper end of the frame, a filling port 3 is arranged in the middle of the lower end of the frame, the filling port 3 is connected with the filling feed port 2, the filling port 3 is opened and closed by a cylinder 4 through a connecting rod 5, and bag opening clamping arms 6 are symmetrically arranged on both sides of the filling port 3, and the bag opening clamping arms 6 on both sides move towards or oppositely with the opening and closing of the filling port 3, wherein: the moving towards or oppositely is to move towards each other horizontally Or move in the opposite direction, for this purpose, the bag mouth clamping arm 6 includes a bag mouth clamp 601, which is fixed on a clamping seat 602, and a clamping cylinder 603 is arranged on the clamping seat 602. The bag mouth clamp 601 is pushed to open and close by the clamping cylinder 603, and a driving fixing plate 604 is arranged on opposite sides of the clamping seat 602, and two parallel connecting rods are arranged at intervals, namely a driving connecting rod 605 and a follower connecting rod 606, and the driving connecting rod 605 and the follower connecting rod 606 are equal in length, and the driving connecting rod 604 and the follower connecting rod 606 are arranged at opposite sides. One end of the connecting rod 605 is rotatably connected to the driving fixed plate 603 through a rotating shaft, and a driving rotating shaft 607 is arranged on the frame. The other end of the driving connecting rod 605 is connected and fixed to the driving rotating shaft 607, and the other end of the follower connecting rod 606 is rotatably connected to the hanging plate 608 arranged on the frame through an axle pin. A clamping arm moving cylinder 7 is respectively connected to the driving rotating shaft 607 of the bag clamping arms on both sides through a pushing mechanism 8 to drive the driving rotating shaft 607 on both sides to rotate forward and reversely. The movable shaft 607 drives the driving connecting rods 605 on both sides to swing forward and backward, and the driving connecting rods 605 that swing forward and backward drive the bag mouth clamps 601 of the bag mouth clamping arms 6 on both sides to move horizontally toward or oppositely through the driving fixed plates 603 and the follower connecting rods 606 on both sides; the driving connecting rods 604 and the follower connecting rods 605, as well as the driving fixed plates 603 and the hanging plates 608 and the frame between the driving shaft 607 form a parallelogram connecting rod mechanism, which ensures that the bag mouth clamps 601 move horizontally toward or oppositely.
[0018] In the embodiment, the pushing mechanism 8 includes a rotating shaft seat 801, a rotating fork 802 and a rotating push arm 803. The rotating shaft seat 801 is connected and fixed to the frame 1. A fork rotating shaft 804 is arranged on the rotating shaft seat 801. The fork rotating shaft 804 passes through the rotating shaft seat 801 and passes out from the outside and inside of the rotating shaft seat 801. The fork rotating shaft 804 is connected to the rotating fork 802 on the outside of the rotating shaft seat 801 and is driven to rotate by the rotating fork 802. The telescopic arm of the clamping arm moving cylinder 7 is connected Connecting the fork end of the rotating fork 802, two movable forks 805 are respectively arranged on the fork rotating shaft 804 inside the rotating shaft seat 801 up and down or left and right, and the two movable forks 805 are respectively connected to one end of the rotating push arm 803, and the other ends of the two rotating push arms 803 are respectively hinged to the swing rod 806, and the other ends of the two swing rods are respectively connected to the driving shaft 607 of the bag opening clamping arms 6 on both sides; during the filling process, the bagging machine puts the opened packaging bag into the filling port 3, After the bag mouth clamp 601 clamps the bag mouth, the clamping arm moving cylinder 7 moves synchronously with the cylinder 4 controlling the filling port 3, and the telescopic arm of the clamping arm moving cylinder 7 drives the rotating fork 802 to swing in an arc with the fork shaft 804 as the center. The rotating fork 802 that swings in an arc drives the fork shaft 804 to rotate, and the rotating fork shaft drives the two moving forks 805 that are opposite to each other up and down or left and right of the fork shaft to rotate left and right. The two moving forks 805 that rotate left and right drive the two rotating push arms 803 to move relatively, and the two rotating push arms 803 that move relatively drive the driving shafts 607 of the bag mouth clamping arms 6 on both sides to rotate forward and reverse through the rocker rod 806, so that the rotating driving shaft 607 drives the driving connecting rod 605 to swing forward and reverse, and the driving connecting rod 605 that swings forward and reverse drives the bag mouth clamps 601 of the bag mouth clamping arms 6 on both sides to move horizontally toward or oppositely through the driving fixed plates 602 and the follower connecting rod 606 on both sides.
[0019] The bag-supporting mechanism capable of keeping the bag opening flat during the filling process adopts a parallelogram linkage mechanism to drive the bag opening clamps of the left and right bag clamping arms to move linearly, thereby ensuring that the bag opening will not wrinkle during the filling process.
Claims
1. A bag-supporting mechanism capable of keeping the bag opening flat during the filling process, comprising a frame, a filling opening being arranged on the frame, bag opening clamping arms being arranged on both sides of the filling opening, the bag opening clamping arms on both sides moving towards or in the opposite direction with the opening and closing of the filling opening, characterized in that: The bag mouth clamping arm comprises a bag mouth clamp, the bag mouth clamp is fixed on the clamping seat, and the clamping seat is provided with a clamping cylinder, and the bag mouth clamp is pushed to open and close by the clamping cylinder, and a driving fixed plate is respectively provided on two opposite sides of the clamping seat, and two connecting rods arranged in parallel and at intervals are respectively a driving connecting rod and a follower connecting rod, and the driving connecting rod and the follower connecting rod have equal lengths, and one end of the driving connecting rod and the follower connecting rod are respectively rotatably connected to the driving fixed plate through a rotating shaft and a driving rotating shaft is provided on the frame, and the other end of the driving connecting rod is rotatably connected to the hanging plate arranged on the frame through an axle pin, and a clamping arm moving cylinder is respectively connected to the driving rotating shafts of the bag mouth clamping arms on both sides through a pushing mechanism to drive the driving rotating shafts on both sides to rotate forward and reversely, and the driving rotating shafts rotating forward and reversely on both sides drive the driving connecting rods on both sides to swing forward and reversely, and the driving connecting rods swinging forward and reversely drive the bag mouth clamps of the bag mouth clamping arms on both sides to move horizontally toward or oppositely through the driving fixing plates and the follower connecting rod on both sides.
2. The bag-supporting mechanism for keeping the bag opening flat according to claim 1, characterized in that: The pushing mechanism comprises a rotating shaft seat, a rotating fork and a rotating push arm. The rotating shaft seat is fixedly connected to the frame, and a fork rotating shaft is arranged on the rotating shaft seat. The fork rotating shaft passes through the rotating shaft seat and goes out from the outside and the inside of the rotating shaft seat. The fork rotating shaft outside the rotating shaft seat is connected to the rotating fork and is driven to rotate by the rotating fork. The telescopic arm of the clamping arm moving cylinder is connected to the fork end of the rotating fork. Two moving forks are arranged on the fork rotating shaft inside the rotating shaft seat up and down or left and right respectively. The two moving forks are respectively connected to one end of the rotating push arm, and the other ends of the two rotating push arms are respectively hinged to swing rods, and the other ends of the two swing rods are respectively connected to the driving rotating shafts of the bag clamping arms on both sides; during the filling process, The telescopic arm of the clamping arm moving cylinder drives the rotating fork to swing in an arc with the fork rotating shaft as the center, and the rotating fork doing the circular arc swinging drives the transmission shaft to rotate, and the rotating transmission shaft drives the two moving forks opposite to the transmission shaft up and down to rotate left and right, and the two moving forks doing the left and right rotation drive the two rotating push arms to move relative to each other, and the two rotating push arms doing the relative movement respectively drive the driving shafts of the bag opening clamping arms on both sides to rotate forward and reverse through the rocker rod, so that the rotating driving shaft drives the driving link to swing forward and reverse, and the driving connecting rod doing the forward and reverse swinging drives the bag opening clamps of the bag opening clamping arms on both sides to move horizontally toward or oppositely through the driving fixing plates and the follower connecting rod on both sides.