Plastic film thermal packaging device

Abstract

The utility model discloses a plastic film thermal packaging device, which relates to the technical field of plastic product production, and comprises support frames, a sliding frame is slidably mounted on the support frames, a rotating frame is rotatably mounted on the sliding frame, a rotating cylinder is fixedly mounted on the rotating frame, the rotating cylinder is arranged between the support frames, and the rotating cylinder is fixedly mounted on the support frames. A plurality of sliding plates are further installed on the rotating cylinder in a sliding mode, the multiple sliding plates are evenly distributed on the rotating cylinder, restoring springs are fixedly installed on the sliding plates, the other ends of the restoring springs are fixedly connected with the inner wall of the rotating cylinder, and hot melting pieces are arranged at the ends, outside the rotating cylinder, of the sliding plates. According to the device, the hot melting piece and the cutting knife are arranged on the sliding plate, cutting and plastic packaging are carried out on a plastic film, the plastic quality can be improved, the plastic packaging width and the position of a cutting opening can be controlled, the cutting efficiency is improved, and the working efficiency is improved. And the quantity of plastic sealing edges of the plastic film is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic product production, in particular to a plastic film heat packaging device. Background Art

[0002] Plastic film laminators play a vital role in the modern packaging industry. They use hot melt technology to heat the plastic film to a certain temperature and then seal it. They then cut and separate the packaged material according to the preset size or shape to form plastic bags or other related products of various specifications.

[0003] However, in actual operation, due to the influence of various factors, such as equipment accuracy, operator skill level and environmental conditions, there is often a deviation between the cutting position and the expected plastic sealing position. This inaccuracy not only affects the appearance quality of the product, but more importantly, leads to the waste of raw materials (i.e. plastic film). Summary of the Invention

[0004] In view of the above technical problems, the present invention proposes the following technical solutions:

[0005] A plastic film thermal packaging device includes a support frame, a sliding frame is slidably mounted on the support frame, a rotating frame is rotatably mounted on the sliding frame, a rotating cylinder is fixedly mounted on the rotating frame, the rotating cylinder is arranged between the support frames, and a plurality of sliding plates are also slidably mounted on the rotating cylinder, a plurality of sliding plates are evenly distributed on the rotating cylinder, a restoring spring is fixedly mounted on the sliding plate, the other end of the restoring spring is fixedly connected to the inner wall of the rotating cylinder, a hot melt sheet is provided on one end of the sliding plate arranged outside the rotating cylinder, and a cutting knife is also fixedly mounted on the other end of the sliding plate provided with the hot melt sheet, and the cutting knife is used to cut the workpiece.

[0006] Furthermore, a fixed shaft is rotatably installed in the rotating frame, the fixed shaft is fixedly connected to the sliding frame, a fixed cylinder is fixedly installed on the fixed shaft, the fixed cylinder is arranged in the rotating cylinder, and an extrusion convex plate is slidably installed on the fixed cylinder.

[0007] Furthermore, an extrusion spring is fixedly installed on the extrusion convex plate, and the other end of the extrusion spring is fixedly installed on the outer wall of the fixed cylinder. The extrusion convex plate is arc-shaped and can contact the sliding plate. The extrusion convex plate is used to squeeze the sliding plate to move the sliding plate away from the axis of the rotating cylinder, and the extrusion spring on the sliding plate is an elastic component provided to prevent the extrusion convex plate and the sliding plate from getting stuck.

[0008] Furthermore, a thickness screw is rotatably installed on the support frame, and the sliding frame is connected to the thickness screw by a thread. The rotation of the thickness screw can drive the sliding frame to slide on the support frame. An upper pinching wheel is rotatably installed on the sliding frame, and a lower pinching wheel is rotatably installed on the support frame. The lower pinching wheel and the upper pinching wheel can extrude the workpiece.

[0009] Furthermore, a lower bracket is fixedly mounted on the support frame, and a cutting table is fixedly mounted on the lower bracket.

[0010] Compared with the prior art, the present invention has the following advantages: (1) the device cuts and seals the plastic film by arranging a hot melt sheet and a cutting knife on the sliding plate, which not only improves the quality of the plastic but also controls the sealing width and the position of the cutting opening, thereby reducing the amount of plastic film edge; (2) the device can seal and cut plastic films of different thicknesses by arranging a plurality of extrusion springs on the extrusion convex plate, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a schematic diagram of the cross-section structure of the upper and lower cutting wheels, the collecting wheel, the lower bracket, the cutting table, the fixed cylinder and the rotating cylinder of the utility model.

[0013] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0014] Figure 4 This is a schematic diagram of the cross-section structure of the rotating frame, extrusion convex plate, fixed cylinder and rotating cylinder of the utility model.

[0015] Figure 5 This is a schematic diagram of the cross-section structure of the rotating drum of the present invention.

[0016] Figure 6 This is a schematic diagram of the structure of the extruded convex plate of the utility model.

[0017] Figure 7 This is a schematic diagram of the sliding plate structure of the utility model.

[0018] Figure markings: 101-support frame; 102-thickness screw; 103-sliding frame; 104-upper pinch wheel; 105-lower pinch wheel; 106-collecting wheel; 107-lower bracket; 108-cutting table; 201-main motor; 202-spindle gear; 203-rotating frame; 204-fixed shaft; 205-extrusion cam; 206-extrusion spring; 207-fixed cylinder; 208-sliding plate; 209-recovery spring; 210-cutting knife; 212-rotating cylinder. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0020] like Figure 1 and Figure 2 As shown, a plastic film thermal packaging device includes a support frame 101, on which a thickness screw rod 102 is rotatably mounted, and on which a sliding frame 103 is slidably mounted, and the sliding frame 103 is connected to the thickness screw rod 102 by a threaded connection, and the rotation of the thickness screw rod 102 can drive the sliding frame 103 to slide on the support frame 101, and an upper pinching wheel 104 is rotatably mounted on the sliding frame 103, and a lower pinching wheel 105 is rotatably mounted on the support frame 101, and the lower pinching wheel 105 and the upper pinching wheel 104 can extrude the workpiece, and a lower bracket 107 is also fixedly mounted on the support frame 101, and a cutting table 108 is fixedly mounted on the lower bracket 107.

[0021] like Figures 1 to 5 and Figure 7 As shown, a rotating frame 203 is rotatably mounted on the sliding frame 103, a main motor 201 is fixedly mounted on the sliding frame 103, a main shaft gear 202 is fixedly mounted on the output shaft of the main motor 201, the main shaft gear 202 is meshed with the rotating frame 203, a rotating cylinder 212 is fixedly mounted on the rotating frame 203, the rotating cylinder 212 is arranged between the support frames 101, and a plurality of sliding plates 208 are slidably mounted on the rotating cylinder 212. The sliding plates 208 are arranged on the rotating cylinder 212. 12, there are multiple evenly distributed, a restoring spring 209 is fixedly installed on the sliding plate 208, the other end of the restoring spring 209 is fixedly connected to the inner wall of the rotating cylinder 212, and the sliding plate 208 is provided with a hot melt sheet at one end outside the rotating cylinder 212, and a cutting knife 210 is also fixedly installed at the end of the sliding plate 208 provided with the hot melt sheet, and the cutting knife 210 can cooperate with the cutting table 108 to cut the workpiece, and the sliding plate 208 can squeeze the workpiece together with the cutting table 108.

[0022] like Figures 1 to 6As shown, a fixed shaft 204 is rotatably installed in the rotating frame 203, and the fixed shaft 204 is fixedly connected to the sliding frame 103. A fixed cylinder 207 is fixedly installed on the fixed shaft 204, and the fixed cylinder 207 is arranged in the rotating cylinder 212. An extrusion convex plate 205 is slidably installed on the fixed cylinder 207, and an extrusion spring 206 is fixedly installed on the extrusion convex plate 205. The other end of the extrusion spring 206 is fixedly installed on the outer wall of the fixed cylinder 207. The extrusion convex plate 205 is arc-shaped and can contact the sliding plate 208. The extrusion convex plate 205 is used to squeeze the sliding plate 208, so that the sliding plate 208 moves away from the axis of the rotating cylinder 212, and the extrusion spring 206 on the sliding plate 208 is an elastic component provided to prevent the extrusion convex plate 205 and the sliding plate 208 from getting stuck.

[0023] Working principle: When the device is working, the plastic film is first pulled manually between the upper pinching wheel 104 and the lower pinching wheel 105, and then the plastic film is driven to move toward the lower bracket 107. The plastic film is then passed between the cutting table 108 and the rotating drum 212. Finally, the plastic film is placed on the conveyor belt or storage frame after passing through the collecting wheel 106. At this time, the upper pinching wheel 104 and the lower pinching wheel 105 are driven to rotate, and the upper pinching wheel 104 and the lower pinching wheel 105 drive the plastic film to move. Then, the main motor 201 is started and the main motor 201 is driven to rotate through the main shaft gear 202. After that, the rotating frame 203 can drive the rotating drum 212 to rotate, and the rotation of the rotating drum 212 is in a predetermined order with the plastic film conveying speed. The distance ratio can be determined by the required length of cutting different plastic films. During the rotation of the rotating cylinder 212, the sliding plate 208 is squeezed by squeezing the convex plate 205, so that the sliding plate 208 moves away from the axis of the rotating cylinder 212. This is to allow the sliding plate 208 to cooperate with the cutting table 108 to extrude and cut the plastic film in the subsequent process. When the sliding plate 208 moves to the top of the cutting table 108, the hot melt sheet on the sliding plate 208 can cooperate with the cutting table 108 to extrude the plastic film. At the same time, the hot melt sheet will heat up and melt the plastic film. At the same time, the cutting knife 210 will cooperate with the cutting table 108 to shear the plastic film, thereby achieving the effect of plastic sealing the edge of the plastic film. The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A plastic film thermal packaging device, comprising a support frame (101), characterized in that: A sliding frame (103) is slidably mounted on the support frame (101), a rotating frame (203) is rotatably mounted on the sliding frame (103), a rotating cylinder (212) is fixedly mounted on the rotating frame (203), the rotating cylinder (212) is arranged between the support frames (101), and a plurality of sliding plates (208) are also slidably mounted on the rotating cylinder (212), a plurality of sliding plates (208) are evenly distributed on the rotating cylinder (212), a restoring spring (209) is fixedly mounted on the sliding plate (208), the other end of the restoring spring (209) is fixedly connected to the inner wall of the rotating cylinder (212), a hot melt sheet is arranged on one end of the sliding plate (208) outside the rotating cylinder (212), and a cutting knife (210) is fixedly mounted on the other end of the sliding plate (208) provided with the hot melt sheet, and the cutting knife (210) is used to cut the workpiece.

2. The plastic film thermal packaging device according to claim 1, characterized in that: A fixed shaft (204) is rotatably mounted in the rotating frame (203), the fixed shaft (204) is fixedly connected to the sliding frame (103), a fixed cylinder (207) is fixedly mounted on the fixed shaft (204), the fixed cylinder (207) is arranged in the rotating cylinder (212), and an extrusion convex plate (205) is slidably mounted on the fixed cylinder (207).

3. The plastic film thermal packaging device according to claim 2, characterized in that: A squeezing spring (206) is fixedly mounted on the squeezing convex plate (205), and the other end of the squeezing spring (206) is fixedly mounted on the outer wall of the fixed cylinder (207). The squeezing convex plate (205) is arc-shaped and can contact the sliding plate (208). The squeezing convex plate (205) is used to squeeze the sliding plate (208) so that the sliding plate (208) moves away from the axis of the rotating cylinder (212). The squeezing spring (206) on the sliding plate (208) is an elastic component provided to prevent the squeezing convex plate (205) and the sliding plate (208) from getting stuck.

4. The plastic film thermal packaging device according to claim 1, characterized in that: A thickness screw rod (102) is rotatably mounted on the support frame (101), and the sliding frame (103) is connected to the thickness screw rod (102) by a threaded connection. The thickness screw rod (102) rotates to drive the sliding frame (103) to slide on the support frame (101). An upper pinching wheel (104) is rotatably mounted on the sliding frame (103), and a lower pinching wheel (105) is rotatably mounted on the support frame (101). The lower pinching wheel (105) and the upper pinching wheel (104) can extrude a workpiece.

5. The plastic film thermal packaging device according to claim 1, characterized in that: A lower bracket (107) is also fixedly mounted on the support frame (101), and a cutting table (108) is fixedly mounted on the lower bracket (107).

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