Clamping device of plastic particle packaging machine

Abstract

The utility model discloses a clamping device of a plastic particle packaging machine, which relates to the field of plastic particle processing and packaging and comprises a sliding bottom frame connected with the lower portion of a machine frame of the packaging machine, and the sliding bottom frame is connected with a sliding base capable of moving along the sliding bottom frame through a driving mechanism. The sliding base is provided and connected with a limiting mechanism used for limiting and clamping a packaging bag containing plastic particles, and the sliding base is further provided and connected with a supporting mechanism used for further clamping and limiting the packaging bag containing the plastic particles. According to the clamping device with the improved design, a packaging bag filled with plastic particles can be supported and stably limited, so that displacement of the packaging bag is avoided, the probability that the plastic particles in a packaging machine (equipment) cannot be poured into the packaging bag is avoided, and waste of raw materials during packaging is reduced.

Description

Technical Field

[0001] The utility model relates to the field of plastic particle processing and packaging, and particularly relates to a clamping device for a plastic particle packaging machine. Background Art

[0002] Plastic particles refer to granular plastics, generally divided into more than 200 types, and subdivided into thousands of types. Common plastic particles include general plastics, engineering plastics, and special plastics. Among them, general plastics: polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, etc.; engineering plastics: nylon, polytetrafluoroethylene, polyoxymethylene, polycarbonate, silicone, etc.; special plastics: thermosetting plastics, functional polymer plastics, such as artificial kidneys. With the development of society, the uses of plastic particles are becoming more and more extensive.

[0003] In order to facilitate the transportation and processing of plastic particles, the produced plastic particles are generally packaged in packaging bags, and then the packaged plastic particles are transported to the factory building for further processing as needed. When using the existing packaging machine (equipment) for packaging plastic particles, during the packaging process of the packaging bag, the packaging bag is generally directly placed on the processing operation table, and then through the filling and packaging of the packaging machine, and finally the packaging bag is "sealed". During this process, as the plastic particles in the packaging bag increase, the volume of the packaging bag increases and expands, and the weight of the packaging bag increases. If "limiting measures" are not taken, the packaging bag will shift, resulting in the possibility that the plastic particles in the packaging machine (equipment) may not be poured into the packaging bag, causing waste of raw materials. Summary of the Utility Model

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A clamping device for a plastic particle packaging machine includes a sliding bottom frame connected to the lower part of the frame of the packaging machine. A sliding base that can move along the sliding bottom frame is connected to the sliding bottom frame through a driving mechanism. A limiting mechanism for limiting and clamping a packaging bag filled with plastic particles is installed and connected to the sliding base, and a supporting mechanism for further clamping and limiting the packaging bag filled with plastic particles is also installed and connected to the sliding base.

[0006] Preferably, the driving mechanism includes a driving rod. One end of the driving rod is hinged to the sliding base through a hinge seat. The other end of the driving rod is hinged to a driving crank. The end of the driving crank far from the driving rod is installed and connected to the output end of a servo motor. The servo motor is installed and fixed on the sliding bottom frame. By controlling the servo motor to drive the driving crank and the driving rod to move, the sliding base is controlled to move along the sliding bottom frame.

[0007] Preferably, the support mechanism includes a first limit clamping plate and a second limit clamping plate, and the first limit clamping plate and the second limit clamping plate are movably arranged above the limit mechanism;

[0008] The first limit clamping plate is movably connected to one side end of the sliding base through a first limit bracket;

[0009] The second limit clamping plate is movably connected to the other side end of the sliding base through a second limit bracket.

[0010] Preferably, the bottom end of the first limit bracket is rotatably connected to one side end of the sliding base through a rotating shaft;

[0011] The bottom end of the first limit bracket is further connected with a first connecting rod, a first curved rod is hinged on the first connecting rod, the other end of the first curved rod is hinged to the output end of a first movable cylinder through a hinge seat, and the first movable cylinder is fixed on the sliding base through bolts.

[0012] Preferably, the bottom end of the second limit bracket is rotatably connected to one side end of the sliding base through a rotating shaft;

[0013] The bottom end of the second limit bracket is further connected with a second connecting rod, a second curved rod is hinged on the second connecting rod, the other end of the second curved rod is hinged to the output end of a second movable cylinder through a hinge seat, and the second movable cylinder is fixed on the sliding base through bolts.

[0014] Preferably, the limit mechanism includes a first bag clamping hoop and a second bag clamping hoop, the first bag clamping hoop and the second bag clamping hoop are arranged to move relative to each other for limiting and clamping a packaging bag filled with plastic particles, and the first bag clamping hoop and the second bag clamping hoop are movably arranged below the first limit clamping plate and the second limit clamping plate;

[0015] One side end face of the first bag clamping hoop away from the second bag clamping hoop is connected to a first movable frame through a first connecting rod, and the first movable frame is movably connected to one side of the top end of the sliding base;

[0016] One side end face of the second bag clamping hoop away from the first bag clamping hoop is connected to a second movable frame through a first connecting rod, and the second movable frame is movably connected to the other side of the top end of the sliding base.

[0017] Preferably, the bottom end of the first movable frame is connected with a first rotating shaft, and the first rotating shaft is rotatably connected to one side of the top end of the sliding base through a bearing;

[0018] The bottom end of the first movable frame is connected with a first connecting shaft. Both ends of the first connecting shaft are connected with a sliding base through connecting seats. The first connecting shaft is connected with a first movable curved rod. The other end of the first movable curved rod is hinged to the output end of a first movable cylinder through a hinge seat. The first movable cylinder drives the first movable frame to move through the first movable curved rod;

[0019] The bottom end of the second movable frame is connected with a second rotating shaft. The second rotating shaft is rotatably connected to the other side of the top end of the sliding base through a bearing;

[0020] The bottom end of the second movable frame is connected with a second connecting shaft. Both ends of the second connecting shaft are connected with a sliding base through connecting seats. The second connecting shaft is connected with a second movable curved rod. The other end of the second movable curved rod is hinged to the output end of a second movable cylinder through a hinge seat. The second movable cylinder drives the second movable frame to move through the second movable curved rod.

[0021] Preferably, several pairs of limiting rotating rods are respectively arranged at the upper and lower parts on both sides of the sliding base. The limiting rotating rods are respectively rotatably connected to the side wall of the sliding base;

[0022] A first limiting guide rod is arranged below the limiting rotating rod at the upper part on the same side of the sliding base. The first limiting guide rod is movably adapted to the limiting rotating rod at the upper part on the same side of the sliding base. The first limiting guide rod is connected to the sliding bottom frame;

[0023] A second limiting guide rod is arranged below the limiting rotating rod at the lower part on the same side of the sliding base. The second limiting guide rod is movably adapted to the limiting rotating rod at the lower part on the same side of the sliding base. The second limiting guide rod is connected to the sliding bottom frame.

[0024] The beneficial effects of the present utility model are as follows: The purpose of the present utility model is to provide a clamping device for a plastic particle packaging machine, which is used to clamp and limit a packaging bag containing plastic particles, so as to avoid waste of raw materials caused by the "displacement" of the packaging bag, resulting in the inability of the plastic particles of the packaging machine to be poured into the packaging bag. The clamping device includes a sliding bottom frame connected to the lower part of the frame of the packaging machine. A sliding base that can move along the sliding bottom frame is connected to the sliding bottom frame through a driving mechanism. A limiting mechanism for clamping and limiting a packaging bag containing plastic particles is installed and connected to the sliding base, and a supporting mechanism for further clamping and limiting a packaging bag containing plastic particles is also installed and connected to the sliding base. By placing the packaging bag for containing plastic particles on the sliding base, as the plastic particle packaging machine pours plastic particles into the packaging bag, even if the plastic particles in the packaging bag increase, the volume of the packaging bag increases and expands, and the weight of the packaging bag increases. The designed limiting mechanism and supporting mechanism can "limit, support, and stabilize" the packaging bag containing plastic particles, thereby avoiding the displacement of the packaging bag. Through the improved clamping device designed in this way, the packaging bag containing plastic particles can be supported, limited, and stabilized, thereby avoiding the displacement of the packaging bag, reducing the probability that the plastic particles in the packaging machine (equipment) cannot be poured into the packaging bag, and reducing the waste of raw materials during packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a clamping device for a plastic particle packaging machine of the present utility model;

[0026] Figure 2 is an exploded schematic diagram of a part of the structure of a clamping device for a plastic particle packaging machine of the present utility model;

[0027] In the figure, 1 - sliding bottom frame, 2 - sliding base, 3 - first limiting clamping plate, 4 - second limiting clamping plate, 5 - first bag - holding hoop, 6 - second bag - holding hoop, 7 - servo motor, 21 - limiting rotating rod, 31 - first limiting bracket, 32 - first curved rod, 41 - second limiting bracket, 42 - second curved rod, 51 - first movable frame, 52 - first movable curved rod, 61 - second movable frame, 62 - second movable curved rod, 71 - driving rod, 72 - driving curved rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] As Figures 1 to 2As shown in the figure, a clamping device for a plastic particle packaging machine includes a sliding bottom frame 1 connected to the lower part of the frame of the packaging machine. A sliding base 2 that can move along the sliding bottom frame is connected to the sliding bottom frame 1 through a driving mechanism. A limiting mechanism for limiting and clamping a packaging bag containing plastic particles is installed and connected to the sliding base 2, and a supporting mechanism for further clamping and limiting the packaging bag containing plastic particles is also installed and connected to the sliding base 2. In the embodiment, the limiting mechanism thus arranged includes a first bag clamping hoop 5 and a second bag clamping hoop 6. The first bag clamping hoop 5 and the second bag clamping hoop 6 are arranged to be relatively movable for limiting and clamping the packaging bag containing plastic particles. The first bag clamping hoop 5 and the second bag clamping hoop 6 are movably arranged below the supporting mechanism (the first limiting clamping plate 3 and the second limiting clamping plate 4). One end face of the first bag clamping hoop 5 away from the second bag clamping hoop 6 is connected to the first movable frame 51 through a first connecting rod. The first movable frame 51 is movably connected to one side of the top end of the sliding base 2. One end face of the second bag clamping hoop 6 away from the first bag clamping hoop 5 is connected to the second movable frame 61 through a first connecting rod. The second movable frame 61 is movably connected to the other side of the top end of the sliding base 2. At the same time, a first rotating shaft is connected to the bottom end of the first movable frame 51. The first rotating shaft is rotatably connected to one side of the top end of the sliding base 2 through a bearing. A first connecting shaft is connected to the bottom end of the first movable frame 51. Both ends of the first connecting shaft are connected to the sliding base 2 through connecting seats. The first connecting shaft is connected to a first movable curved rod 52. The other end of the first movable curved rod 52 is hinged to the output end of the first movable cylinder through a hinge seat. The first movable cylinder drives the first movable frame 51 to move through the first movable curved rod 52. Similarly, the connection structure of the second movable frame 61 and the first movable frame 51 is similar, that is, a second rotating shaft is connected to the bottom end of the second movable frame 61. The second rotating shaft is rotatably connected to the other side of the top end of the sliding base 2 through a bearing. A second connecting shaft is connected to the bottom end of the second movable frame 61. Both ends of the second connecting shaft are connected to the sliding base 2 through connecting seats. The second connecting shaft is connected to a second movable curved rod 62. The other end of the second movable curved rod 62 is hinged to the output end of the second movable cylinder through a hinge seat. The second movable cylinder drives the second movable frame 61 to move through the second movable curved rod 62. By conveying and moving the packaging bag to the sliding base 2 and pouring plastic particles into the packaging bag through the existing technology of the packaging machine, as the plastic particles in the packaging bag increase, the weight increases. By controlling the first movable cylinder to drive the first movable frame 51 to move through the first movable curved rod 52, the first movable frame 51 drives the first bag clamping hoop 5 to move. Similarly, by controlling the second movable cylinder to drive the second movable frame 61 to move through the second movable curved rod 62, the second movable frame 61 drives the second bag clamping hoop 6 to move. Finally, the first movable cylinder can drive the first bag clamping hoop 5 and the second movable cylinder can drive the second bag clamping hoop 6 to move relatively closer to clamp and limit the packaging bag containing plastic particles stably.

[0030] Further, in the embodiment, the support mechanism of the design includes a first limiting clamping plate 3 and a second limiting clamping plate 4. The first limiting clamping plate 3 and the second limiting clamping plate 4 are movably arranged above the limiting mechanism. The first limiting clamping plate 3 is movably connected to one side end of the sliding base 2 through a first limiting bracket 31. The second limiting clamping plate 4 is movably connected to the other side end of the sliding base 2 through a second limiting bracket 41. At the same time, the bottom end of the first limiting bracket 31 is rotatably connected to one side end of the sliding base 2 through a rotating shaft. The bottom end of the first limiting bracket 31 is further connected with a first connecting rod, and a first curved rod 32 is hinged on the first connecting rod. The other end of the first curved rod 32 is hinged to the output end of the first movable cylinder through a hinge seat, and the first movable cylinder is fixed on the sliding base 2 by bolts. The bottom end of the second limiting bracket 41 is rotatably connected to one side end of the sliding base 2 through a rotating shaft. The bottom end of the second limiting bracket 41 is further connected with a second connecting rod, and a second curved rod 42 is hinged on the second connecting rod. The other end of the second curved rod 42 is hinged to the output end of the second movable cylinder through a hinge seat, and the second movable cylinder is fixed on the sliding base 2 by bolts. As the plastic particles in the packaging bag increase in quantity and the height increases, at this time, by controlling the first movable cylinder to drive the first curved rod 32 to move, the first curved rod 32 drives the first limiting bracket 31 to move, so as to drive the first limiting clamping plate 3 to move through the first limiting bracket 31. Similarly, by controlling the second movable cylinder to drive the second curved rod 42 to move, the second curved rod 42 drives the second limiting bracket 41 to move, so as to drive the second limiting clamping plate 4 to move through the second limiting bracket 41. Finally, the first movable cylinder can drive the first limiting clamping plate 3 and the second movable cylinder can drive the second limiting clamping plate 4 to move relatively closer, "clamping and limiting and stabilizing" the upper part of the packaging bag containing plastic particles placed between the first limiting clamping plate 3 and the second limiting clamping plate 4, so as to clamp and limit the lower part of the packaging bag containing plastic particles through the limiting mechanism, clamp and limit the upper part of the packaging bag containing plastic particles through the support mechanism, and further stably limit the packaging bag containing plastic particles, avoiding the displacement of the packaging bag during the process of the packaging machine pouring plastic particles into the packaging bag.

[0031] Further, in the embodiment, after the plastic particles in the packaging bag are filled and sealed by the packaging machine, the driving mechanism can be used to move the packaging bag filled with plastic particles and sealed and limited on the sliding base 2 to a suitable position, which is convenient for removing the packaging bag filled with plastic particles and sealed from the sliding base 2 and facilitating the packaging of plastic particles for the next packaging bag. The designed driving mechanism includes a driving rod 71. One end of the driving rod 71 is hinged to the sliding base 2 through a hinge seat, and the other end of the driving rod 71 is hinged to a driving crank 72. The end of the driving crank 72 far from the driving rod 71 is installed and connected to the output end of the servo motor 7. The servo motor 7 is installed and fixed on the sliding chassis 1. By controlling the servo motor 7 to drive the driving crank 72 and the driving rod 71 to move, the sliding base 2 is controlled to move along the sliding chassis 1. Moreover, several pairs of limiting rollers 21 are respectively arranged on the upper and lower parts of both sides of the sliding base 2, and the limiting rollers 21 are respectively rotatably connected to the side wall of the sliding base 2. A first limiting guide rod is arranged below the limiting roller 21 on the upper part of the same side of the sliding base 2, and the first limiting guide rod is movably adapted to the limiting roller 21 on the upper part of the same side of the sliding base 2. The first limiting guide rod is connected to the sliding chassis 1. A second limiting guide rod is arranged below the limiting roller 21 on the lower part of the same side of the sliding base 2, and the second limiting guide rod is movably adapted to the limiting roller 21 on the lower part of the same side of the sliding base 2. The second limiting guide rod is connected to the sliding chassis 1, and the packaging bag filled with plastic particles and sealed is stably moved to a suitable position. From the perspective of the overall improved structure of the clamping device, the clamping device can support and limit the packaging bag filled with plastic particles stably, thus avoiding the displacement of the packaging bag and reducing the probability that the plastic particles in the packaging machine (equipment) cannot be poured into the packaging bag, and reducing the waste of raw materials during packaging.

[0032] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above-described embodiments in the specification. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

Claims

1. A clamping device for a plastic granule packaging machine, characterized in that: It comprises a sliding base connected to the lower part of the frame of the packaging machine, the sliding base is connected to the sliding base through a driving mechanism and is movable along the sliding base, the sliding base is connected to a limiting mechanism for limiting and clamping the packaging bag containing plastic particles, and the sliding base is also connected to a supporting mechanism for further clamping and limiting the packaging bag containing plastic particles.

2. A clamping device for a plastic granule packaging machine according to claim 1, characterized in that: The driving mechanism includes a driving rod, one end of which is hinged to the sliding base via a hinge seat, and the other end of the driving rod is hinged to the driving bent rod. The end of the driving bent rod away from the driving rod is installed and connected to the output end of the servo motor, and the servo motor is installed and fixed on the sliding base. The servo motor is controlled to drive the driving bent rod and the driving rod to move, thereby controlling and driving the sliding base to move along the sliding base.

3. A clamping device for a plastic granule packaging machine according to claim 2, characterized in that: The support mechanism comprises a first limiting clamping plate and a second limiting clamping plate, and the first limiting clamping plate and the second limiting clamping plate are movably arranged above the limiting mechanism; The first limiting clamping plate is movably connected to one side end of the sliding base through the first limiting bracket; The second limiting clamping plate is movably connected to the other side end of the sliding base through the second limiting bracket.

4. A clamping device for a plastic granule packaging machine according to claim 3, characterized in that: The bottom end of the first limiting bracket is rotatably connected to one side end of the sliding base via a rotating shaft; The bottom end of the first limiting bracket is also connected to a first connecting rod, a first curved rod is hinged on the first connecting rod, the other end of the first curved rod is hinged to the output end of the first movable cylinder through a hinge seat, and the first movable cylinder is fixed to the sliding base by bolts.

5. A clamping device for a plastic granule packaging machine according to claim 4, characterized in that: The bottom end of the second limiting bracket is rotatably connected to one side end of the sliding base via a rotating shaft; The bottom end of the second limiting bracket is also connected to a second connecting rod, a second curved rod is hinged on the second connecting rod, the other end of the second curved rod is hinged to the output end of the second movable cylinder through a hinge seat, and the second movable cylinder is fixed to the sliding base by bolts.

6. A clamping device for a plastic granule packaging machine according to claim 5, characterized in that: The limiting mechanism comprises a first bag holding hoop and a second bag holding hoop, the first bag holding hoop and the second bag holding hoop are relatively movable and are used to limit and clamp the packaging bag containing plastic particles, and the first bag holding hoop and the second bag holding hoop are movably arranged below the first limiting clamping plate and the second limiting clamping plate; The end surface of the first bag holding hoop away from the second bag holding hoop is connected to the first movable frame through a first connecting rod, and the first movable frame is movably connected to one side of the top end of the sliding base; The end surface of one side of the second bag holding hoop away from the first bag holding hoop is connected to the second movable frame through a first connecting rod, and the second movable frame is movably connected to the other side of the top end of the sliding base.

7. A clamping device for a plastic granule packaging machine according to claim 6, characterized in that: The bottom end of the first movable frame is connected to a first rotating shaft, and the first rotating shaft is rotatably connected to one side of the top end of the sliding base through a bearing; The bottom end of the first movable frame is connected to a first connecting shaft, both ends of the first connecting shaft are connected to the sliding base through a connecting seat, the first connecting shaft is connected to a first movable curved rod, the other end of the first movable curved rod is hinged to the output end of the first movable cylinder through a hinge seat, and the first movable cylinder drives the first movable frame to move through the first movable curved rod; The bottom end of the second movable frame is connected to a second rotating shaft, and the second rotating shaft is rotatably connected to the other side of the top end of the sliding base through a bearing; The bottom end of the second movable frame is connected to a second connecting shaft, both ends of the second connecting shaft are connected to the sliding base through a connecting seat, the second connecting shaft is connected to a second movable bent rod, the other end of the second movable bent rod is hinged to the output end of the second movable cylinder through a hinge seat, and the second movable cylinder drives the second movable frame to move through the second movable bent rod.

8. A clamping device for a plastic granule packaging machine according to claim 7, characterized in that: A plurality of pairs of position-limiting rotating rods are respectively arranged at the upper and lower parts of both sides of the sliding base, and the position-limiting rotating rods are respectively rotatably connected to the side walls of the sliding base; A first limiting guide rod is provided below the limiting rotating rod on the upper part of the same side of the sliding base, the first limiting guide rod is movably adapted to the limiting rotating rod on the upper part of the same side of the sliding base, and the first limiting guide rod is connected to the sliding base frame; A second limiting guide rod is arranged below the limiting rotating rod at the lower part on the same side of the sliding base, the second limiting guide rod is movably matched with the limiting rotating rod at the lower part on the same side of the sliding base, and the second limiting guide rod is connected to the sliding base frame.

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