Composite film bag-making hot cutting device

Abstract

The utility model relates to the technical field of grouting material production, in particular to a composite film bag-making hot cutting device which comprises two side frames, a hot cutting device, a hot cutting device and a hot cutting device. The electric conveying belt is mounted between the two side frames; the first motor is fixedly connected to the outer side wall of one side frame. According to the composite film cutting device, the rotating shaft, the sliding groove, the second motor, the third motor, the conveying wheel, the wedging block, the lead screw and the moving assembly are arranged in a matched mode, and then the nut, the threaded column and the L-shaped plate are arranged in a matched mode, so that the device can adapt to composite films of different sizes and thicknesses, and the cutting precision and the conveying stability of the composite films are guaranteed. Through cooperative arrangement of an electric telescopic rod, a limiting block, an inserting column, a mounting plate, a hot cutter, a reset spring, a [-shaped pressing plate, a cutting groove and a side frame, the situation that a composite film is taken up by the hot cutter after being cut is avoided, and the cutting quality and efficiency of composite film bag making are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of composite film cutting, in particular to a composite film bag making hot cutting device. Background Art

[0002] Composite film is a high-performance film laminated from two or more different materials. By combining the advantages of different materials, it achieves comprehensive protection for products. In the field of packaging, composite film can effectively block external factors such as oxygen, moisture, and ultraviolet rays, extending the shelf life and safety of food, medicine, and electronic products. The composite film bag making process requires multiple steps, among which composite film cutting is an indispensable process.

[0003] Traditional hot cutting devices usually place the composite film directly on a conveyor belt for transmission, and then use a hot cutter to cut it. However, due to the temperature of the hot cutter, the composite film is easily lifted up during the cutting and lifting process, resulting in wrinkles and unevenness in the composite film. In addition, traditional hot cutting devices are difficult to adapt to composite films of different sizes and thicknesses, resulting in reduced cutting accuracy, and may even cause cutting deviations or damage to the composite film. Utility Model Content

[0004] The purpose of the utility model is to provide a composite film bag making and hot cutting device to solve the problems raised in the above background technology.

[0005] A composite film bag making and hot cutting device, comprising:

[0006] Two side frames are provided, and the bottom surfaces of the two side frames are symmetrically fixedly connected to support legs;

[0007] Electric conveyor belt, installed between two side frames;

[0008] Motor 1 is fixedly connected to the outer side wall of one of the side frames, and its motor shaft is drivingly connected to the driving shaft of the electric conveyor belt;

[0009] A hot cutting mechanism is arranged above the electric conveyor belt, and the hot cutting mechanism includes a portal frame, the two bottom ends of the portal frame are respectively fixedly connected to the top surfaces of the two side frames, and the inner top surface of the portal frame is symmetrically fixedly connected to two electric telescopic rods, the output ends of the two electric telescopic rods are fixedly connected to limit blocks, the bottom surfaces of the two limit blocks are fixedly connected to plug-in columns, the bottom ends of the two plug-in columns are fixedly connected to a mounting plate, and the bottom surface of the mounting plate is installed with a hot cutting knife;

[0010] There are two upper pressing mechanisms, which are respectively located on both sides of the热切机构. The upper pressing mechanism includes two L-shaped plates. The two L-shaped plates are respectively located on the top surfaces of the two side frames. Two rotating shafts and a screw rod are rotatably connected between the two L-shaped plates. Chutes are provided on the outer walls of the two rotating shafts. Two moving components are provided on the outer wall of the screw rod. A motor two and a motor three are fixedly connected to the outer side wall of one of the L-shaped plates. The motor shaft of the motor two is drivingly connected to the end of one of the rotating shafts. The motor shaft of the motor three is drivingly connected to one end of the screw rod.

[0011] Furthermore: Tooth belt pulleys are fixedly sleeved on the outer walls of the two rotating shafts, and the two tooth belt pulleys are drivingly connected by a transmission belt.

[0012] Furthermore: Two conveying wheels are slidably sleeved on the outer walls of the two rotating shafts. A fitting block that is slidably fitted with the chute is provided on the inner arc surface of the conveying wheel.

[0013] Furthermore: The热切机构 further includes a U-shaped pressing plate. Two insertion holes are provided on the top surface of the U-shaped pressing plate. Insertion columns are respectively slidably inserted into the two insertion holes. The inner top surface of the U-shaped pressing plate is in contact with the top surface of the mounting plate. A cutting groove for the热切刀 to pass through is provided on the inner bottom surface of the U-shaped pressing plate. A return spring is sleeved on the outer wall of the insertion column. One end of the return spring is fixedly connected to the bottom surface of the limiting block, and the other end of the return spring is fixedly connected to the top surface of the U-shaped pressing plate.

[0014] Furthermore: A separating ring is fixedly sleeved at the central position of the screw rod, and the thread directions of the two ends of the screw rod are opposite.

[0015] Furthermore: The moving component includes:

[0016] Two clamping blocks are provided. Limiting grooves are provided at the bottoms of the two clamping blocks. The inner side walls of the two limiting grooves are respectively in contact with the outer side walls of the two conveying wheels located on different rotating shafts. Slots for inserting the rotating shaft are respectively provided through the bottom side walls of the two clamping blocks.

[0017] A connecting plate is located between the two clamping blocks and is fixedly connected to the outer side walls of the two clamping blocks at both ends. A threaded hole that is screwed and connected to the outer wall of the screw rod is provided on the outer wall of the connecting plate.

[0018] Furthermore: Two circular holes are provided on the inner bottom surfaces of the two L-shaped plates. Threaded columns corresponding to the circular holes are fixedly connected to the top surfaces of the two side frames, and the threaded columns are slidably inserted into the circular holes.

[0019] Compared with the prior art, the beneficial effects of the present utility model are:

[0020] 1. Through the cooperative setting among the rotating shaft, sliding chute, motor II, motor III, conveying wheels, fitting blocks, screw rods and moving components, starting motor III can make the two moving components drive the two conveying wheels below them to approach or move away from each other. Then, through the cooperative setting among the nut, threaded column and L-shaped plate, the distance between the conveying wheel and the electric conveyor belt can be adjusted, enabling the device to adapt to composite films of different sizes and thicknesses, ensuring the cutting accuracy and the stability of the composite film conveying.

[0021] 2. Through the cooperative setting among the electric telescopic rod, limiting block, inserting column, mounting plate, hot cutting knife, reset spring, U-shaped pressing plate, cutting groove and side frame, when the cutting groove extends downward, the bottom surface of the U-shaped pressing plate will first contact and press the composite film, and then the electric telescopic rod drives the inserting column to continue moving downward along the inserting hole on the U-shaped pressing plate. Subsequently, the hot cutting knife extends out from the cutting groove to cut the composite film, avoiding the situation that the composite film is lifted by the hot cutting knife after cutting, and ensuring the cutting quality and efficiency of the composite film bag making. Description of the Drawings

[0022] Figure 1 is the overall structural schematic diagram of a hot cutting device for composite film bag making of the present utility model;

[0023] Figure 2 is the structural schematic diagram of the hot cutting mechanism in the present utility model;

[0024] Figure 3 is the partial structural schematic diagram of the hot cutting mechanism in the present utility model;

[0025] Figure 4 is the structural schematic diagram of the upper pressing mechanism in the present utility model;

[0026] Figure 5 is the structural schematic diagram between the moving component and the conveying wheel in the present utility model;

[0027] Figure 6 is the split structural schematic diagram of the rotating shaft and the conveying wheel in the present utility model.

[0028] In the figure: 100, side frame; 110, electric conveyor belt; 111, support leg; 112, motor 1; 113, threaded column; 200,热切机构 (热切机构 can be directly translated as "热切机构" if there is no specific English equivalent in this context, or it can be further described according to its actual function); 210, gantry; 211, electric telescopic rod; 212, limit block; 213, insertion column; 214, mounting plate; 215,热切刀 (热切刀 can be directly translated as "热切刀" if there is no specific English equivalent in this context, or it can be further described according to its actual function); 216, return spring; 220, U-shaped pressing plate; 221, cutting groove; 300, upper pressing mechanism; 310, L-shaped plate; 3101, round hole; 311, rotating shaft; 3111, sliding groove; 312, motor 2; 313, screw rod; 3131, separating ring; 314, motor 3; 320, moving component; 321, clamping block; 3211, limiting groove; 3212, slot; 322, connecting plate; 3221, threaded hole; 330, conveying wheel; 3301, fitting block; 340, toothed pulley; 341, transmission belt. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0030] Please refer to Figure 1-6In an embodiment of the present invention, a composite film bag making and hot cutting device comprises two side frames 100. The bottom surfaces of the two side frames 100 are symmetrically fixedly connected with support legs 111. An electric conveyor belt 110 is installed between the two side frames 100. The outer wall of one side frame 100 is fixedly connected with a motor 112. The motor shaft of the motor 112 is in transmission connection with the driving shaft of the electric conveyor belt 110. A hot cutting mechanism 200 is arranged above the electric conveyor belt 110. The hot cutting mechanism 200 0 includes a gantry 210, the two bottom ends of the gantry 210 are fixedly connected to the top surfaces of the two side frames 100 respectively, and the inner top surface of the gantry 210 is symmetrically fixedly connected to two electric telescopic rods 211, the output ends of the two electric telescopic rods 211 are fixedly connected to the limit blocks 212, the bottom surfaces of the two limit blocks 212 are fixedly connected to the plug-in columns 213, the bottom ends of the two plug-in columns 213 are fixedly connected to the mounting plate 214, and the bottom surface of the mounting plate 214 is installed with a hot cutter 215. The upper pressing mechanism 300 is provided on both sides of the structure 200. The upper pressing mechanism 300 includes two L-shaped plates 310. The two L-shaped plates 310 are respectively located on the top surfaces of the two side frames 100. Two rotating shafts 311 and a screw rod 313 are rotatably connected between the two L-shaped plates 310. The outer walls of the two rotating shafts 311 are provided with a sliding groove 3111. The outer wall of the screw rod 313 is provided with two moving components 320. The outer wall of one of the L-shaped plates 310 is fixedly connected to the motor 2 312 and the motor 3 3 14. The motor shaft of motor 2 312 is transmission-connected to the end of one of the rotating shafts 311. The motor shaft of motor 314 is transmission-connected to one end of the screw rod 313. The outer walls of the two rotating shafts 311 are both sleeved and fixed with toothed pulleys 340. The two toothed pulleys 340 are transmission-connected by a transmission belt 341. The outer walls of the two rotating shafts 311 are both slidably sleeved with two conveying wheels 330. The inner arc surface of the conveying wheel 330 is provided with a fitting block 3301 that slides in engagement with the slide groove 3111.

[0031] Specifically, the hot cutting knife 215 is heated to a suitable cutting temperature, and the composite film is fed onto the electric conveyor belt 110. According to the size of the composite film, the distance between the two conveying wheels 330 on the outer wall of the rotating shaft 311 is adjusted so that the two conveying wheels 330 are pressed against the two side edges of the composite film respectively, and the motor 112 is started to move the side frame 100 forward at a constant speed, driving the composite film to be conveyed toward the hot cutting mechanism 200. At the same time, the motor 2 312 is started so that the motor shaft of the motor 2 312 is driven by the rotating shaft 311 matched therewith. The two rotating shafts 311 rotate synchronously with the cooperation of the toothed pulley 340 and the transmission belt 341. Since the engaging block 3301 is engaged with the slide groove 3111, the rotating shaft 311 rotates, which drives the conveying wheel 330 to rotate. The rotation direction of the conveying wheel 330 is opposite to that of the side frame 100, so that the conveying wheel 330 can press the composite film while assisting the side frame 100 to convey it forward smoothly. After the composite film moves to the bottom of the hot cutting mechanism 200, the two electric telescopic rods 211 are controlled to move downward, so that it drives the hot cutting knife 215 to move downward and cut the composite film. The high temperature of the hot cutting knife 215 makes the composite film quickly cut. The composite film after cutting continues to be conveyed and is flattened and conveyed by another set of upper pressing mechanisms 300. The transmission belt 341 and the two toothed pulleys 340 are used to form a synchronous pulley group for making the two rotating shafts 311 rotate synchronously. The synchronous pulley group is a technology well known to technicians in this technical field and is a commonly used device in this technical field. It will not be described here.

[0032] Example 1

[0033] like Figure 4-5 As shown, in this embodiment, a separating ring 3131 is sleeved and fixed at the center position of the screw rod 313, and the threads at both ends of the screw rod 313 are in opposite directions. The moving assembly 320 includes two clamping blocks 321, and the bottoms of the two clamping blocks 321 are each provided with a limiting groove 3211. The inner side walls of the two limiting grooves 3211 are respectively in contact with the outer side walls of two conveying wheels 330 located on different rotating shafts 311. The side walls of the two clamping blocks 321 at the bottom are penetrated by a slot 3212 for plugging into the rotating shaft 311. A connecting plate 322 is fixedly connected between the side walls of the two clamping blocks 321, and the outer wall of the connecting plate 322 is provided with a threaded hole 3221 that is screwed together with the outer wall of the screw rod 313.

[0034] In this embodiment, the motor three 314 is started. The motor shaft of the motor three 314 drives the screw rod 313. Since the thread directions at both ends of the screw rod 313 are opposite, when the screw rod 313 rotates, two symmetrically arranged moving components 320 screwed on its outer wall will move towards or away from each other. When the connecting plate 322 drives the clamping block 321 to move, the clamping block 321 will also carry the conveying wheel 330 along the rotating shaft 311 to move, so as to change the distance between the two conveying wheels 330 on the outer wall of the same rotating shaft 311, making it adaptable to composite films of different sizes.

[0035] As Figure 1 and Figure 4 shown, in this embodiment, two circular holes 3101 are opened on the inner bottom surfaces of the two L-shaped plates 310. Threaded columns 113 are fixedly connected to the positions corresponding to the circular holes 3101 on the top surfaces of the two side frames 100, and the threaded columns 113 are slidably inserted into the circular holes 3101.

[0036] During specific implementation, according to the thickness of the composite film to be cut, the upper pressing mechanism 300 is moved up or down along the threaded column 113 so that the surface of the conveying wheel 330 can just contact the surface of the composite film. After the adjustment is completed, the position of the L-shaped plate 310 is fixed by the nut screwed on the threaded column 113. This structural design enables it to adapt to and convey composite films of different thicknesses.

[0037] Embodiment Two

[0038] On the basis of Embodiment One, in order to avoid the situation that the composite film will be lifted when the hot cutting knife 215 cuts and lifts in Embodiment One

[0039] As Figure 2-3 shown, in this embodiment, the hot cutting mechanism 200 further includes a U-shaped pressing plate 220. Two insertion holes are opened on the top surface of the U-shaped pressing plate 220. Insertion columns 213 are respectively slidably inserted into the two insertion holes. The inner top surface of the U-shaped pressing plate 220 contacts the top surface of the mounting plate 214. A cutting groove 221 for the hot cutting knife 215 to pass through is opened on the inner bottom surface of the U-shaped pressing plate 220. A return spring 216 is sleeved on the outer wall of the insertion column 213. One end of the return spring 216 is fixedly connected to the bottom surface of the limiting block 212, and the other end of the return spring 216 is fixedly connected to the top surface of the U-shaped pressing plate 220.

[0040] During specific implementation, a return spring 216 is fixed between the limit block 212 and the U-shaped pressing plate 220, and under the action of gravity, the inner top surface of the U-shaped pressing plate 220 is self-adhered to the top surface of the mounting plate 214. During cutting, the electric telescopic rod 211 is controlled to extend downward, so that the electric telescopic rod 211 drives the components below it to move downward, making the bottom surface of the U-shaped pressing plate 220 first contact and press the composite film. At this time, the continuous downward movement of the electric telescopic rod 211 causes the electric telescopic rod 211 to drive the limit block 212 / the insertion column 213 and the mounting plate 214 and the hot cutting knife 215 below it to continue to move downward, and the return spring 216 contracts. The descending hot cutting knife 215 continues to cut the composite film from the cutting groove 221. After cutting, the electric telescopic rod 211 is controlled to contract upward. When the electric telescopic rod 211 drives the hot cutting knife 215 to move upward, the U-shaped pressing plate 220 still presses the composite film under the elastic force of the return spring 216. Thus, after the hot cutting knife 215 moves upward and completely leaves the composite film, that is, when the top surface of the upward-moving mounting plate 214 contacts the inner top surface of the U-shaped pressing plate 220 again, and随之带动匚形压板220向上移动,使匚形压板220不再压住切断的复合膜,该结构避免了复合膜会被热切刀215带起的情况发生,提高了切割质量。

[0041] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0042] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. It should be noted that there is an unclear part "随之带动匚形压板220向上移动,使匚形压板220不再压住切断的复合膜" in the translation of . The original text seems a bit incomplete or unclear at this point. You may want to double-check and correct it if possible.

Claims

1. A composite film bag making and hot cutting device, characterized in that: Including: Side frames (100), two are provided, and support legs (111) are symmetrically and fixedly connected to the bottom surfaces of the two side frames (100); Electric conveyor belt (110), installed between the two side frames (100); Motor 1 (112), fixedly connected to the outer wall of one of the side frames (100), and its motor shaft is drivingly connected to the driving shaft of the electric conveyor belt (110); Hot cutting mechanism (200), arranged above the electric conveyor belt (110), the hot cutting mechanism (200) includes a portal frame (210), the two bottom ends of the portal frame (210) are respectively fixedly connected to the top surfaces of the two side frames (100), two electric telescopic rods (211) are symmetrically and fixedly connected to the inner top surface of the portal frame (210), the output ends of the two electric telescopic rods (211) are both fixedly connected with limit blocks (212), plug-in columns (213) are fixedly connected to the bottom surfaces of the two limit blocks (212), an installation plate (214) is fixedly connected to the bottom ends of the two plug-in columns (213), and a hot cutting knife (215) is installed on the bottom surface of the installation plate (214); Upper pressing mechanism (300), two are provided, respectively located on both sides of the hot cutting mechanism (200), the upper pressing mechanism (300) includes two L-shaped plates (310), the two L-shaped plates (310) are respectively located on the top surfaces of the two side frames (100), two rotating shafts (311) and a丝杆 (313) are rotatably connected between the two L-shaped plates (310), sliding grooves (3111) are formed on the outer walls of the two rotating shafts (311), two moving components (320) are arranged on the outer wall of the丝杆 (313), a motor 2 (312) and a motor 3 (314) are fixedly connected to the outer wall of one of the L-shaped plates (310), the motor shaft of the motor 2 (312) is drivingly connected to the end of one of the rotating shafts (311), and the motor shaft of the motor 3 (314) is drivingly connected to one end of the丝杆 (313).

2. The composite film bag making and hot cutting device according to claim 1, characterized in that: Toothed belt pulleys (340) are sleeved and fixed on the outer walls of the two rotating shafts (311), and the two toothed belt pulleys (340) are drivingly connected by a transmission belt (341).

3. The composite film bag making and hot cutting device according to claim 1, characterized in that: Two conveying wheels (330) are slidably sleeved on the outer walls of the two rotating shafts (311), and a fitting block (3301) that is slidably fitted with the sliding groove (3111) is arranged on the inner arc surface of the conveying wheel (330).

4. The composite film bag making and hot cutting device according to claim 1, characterized in that: The hot cutting mechanism (200) further includes a U-shaped pressing plate (220), two plugging holes are formed on the top surface of the U-shaped pressing plate (220), the plug-in columns (213) are respectively slidably plugged in the two plugging holes, the inner top surface of the U-shaped pressing plate (220) is in contact with the top surface of the installation plate (214), a cutting groove (221) for the hot cutting knife (215) to pass through is formed on the inner bottom surface of the U-shaped pressing plate (220), a return spring (216) is sleeved on the outer wall of the plug-in column (213), one end of the return spring (216) is fixedly connected to the bottom surface of the limit block (212), and the other end of the return spring (216) is fixedly connected to the top surface of the U-shaped pressing plate (220).

5. The composite film bag making and hot cutting device according to claim 1, characterized in that: A separation ring (3131) is sleeved and fixed at the center of the screw rod (313), and the threads at both ends of the screw rod (313) rotate in opposite directions.

6. The composite film bag making and hot cutting device according to claim 1, characterized in that: The mobile assembly (320) includes: Two clamping blocks (321) are provided. The bottoms of the two clamping blocks (321) are each provided with a limiting groove (3211). The inner side walls of the two limiting grooves (3211) are respectively in contact with the outer side walls of two conveying wheels (330) located on different rotating shafts (311). The bottom side walls of the two clamping blocks (321) are each provided with a slot (3212) that is plugged into the rotating shaft (311). The connecting plate (322) is located between the two clamping blocks (321), and its two ends are fixedly connected to the outer side walls of the two clamping blocks (321). The outer wall of the connecting plate (322) is provided with a threaded hole (3221) that is screwed together with the outer wall of the screw rod (313).

7. The composite film bag making and hot cutting device according to claim 1, characterized in that: The inner bottom surfaces of the two L-shaped plates (310) are each provided with two circular holes (3101), and the top surfaces of the two side frames (100) corresponding to the circular holes (3101) are both fixedly connected with threaded columns (113), and the threaded columns (113) are slidably plugged into the circular holes (3101).

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