Liquid bag production equipment with easy-to-tear diversion trench and easy-to-tear liquid bag

Abstract

The utility model discloses a liquid bag production device with an easy-to-tear diversion trench and an easy-to-tear liquid bag, the liquid bag production device with the easy-to-tear diversion trench comprises an unreeling device, a mould pressing device and a heat sealing device, the mould pressing device is arranged between the unreeling device and the heat sealing device, and the liquid bag production device also comprises a laser drilling device, and the laser drilling device is arranged between the unwinding device and the mold pressing device. When the equipment is used for preparing the easy-to-tear liquid bag, a blind hole is formed in a plastic membrane by utilizing a laser drilling device, a linear easy-to-break belt is formed at a flow guide groove of the formed liquid bag due to the existence of the blind hole, and the liquid bag can be torn along the easy-to-break belt in the tearing process due to the existence of the easy-to-break belt; and the whole diversion trench is prevented from being torn off from the bag body. The utility model further discloses the easy-to-tear liquid bag prepared by the production equipment.

Description

Technical Field

[0001] The utility model relates to the field of bag preparation, in particular to a liquid bag production device with an easy-tear guide groove and an easy-tear liquid bag. Background Art

[0002] A liquid bag with a guide groove is a commonly used liquid bag at present. The structure of the liquid bag with this structure is shown in the attached figure. Figure 1 As shown in the figure, the liquid bag of this structure is mainly made of two plastic films, and parts of the two films are matched together by heat bonding to form a heat-sealed portion 101. Part of the heat-sealed portion 101 forms a trumpet-shaped guide groove 102 on the bag. When pouring the liquid in the bag, just tear open the bag wall of the liquid bag at the guide groove, and the liquid can be poured out of the liquid bag along the guide groove, but the attached Figure 1 The liquid bag shown in the figure does not have an auxiliary tearing structure at the position where the guide groove is opened in the bag body, so the attached Figure 1 The liquid bag shown in the figure needs to be cut open with a knife to ensure that the guide groove will not be torn off when it is opened, which is very inconvenient to use. Utility Model Content

[0003] In view of the above problems, the utility model proposes a liquid bag production device with an easy-tear guide groove and an easy-tear liquid bag. When preparing the easy-tear liquid bag, the production device uses a laser punching device to open a blind hole on a plastic film. The existence of the blind hole forms a straight-line easy-to-break zone at the guide groove of the formed liquid bag. The existence of the easy-to-break zone allows the tearing process to be torn along the easy-to-break zone, ensuring that the entire guide groove will not be torn off the bag body.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A liquid bag production device with an easy-tear guide groove comprises a reeling device, a molding device and a heat-sealing device, wherein the molding device is arranged between the reeling device and the heat-sealing device, and further comprises a laser punching device, wherein the laser punching device is arranged between the reeling device and the molding device.

[0006] In this liquid bag production equipment, the unwinding device is used to release the plastic film roll. After the plastic film roll is released by the unwinding device, it is firstly punched with blind holes by the laser punching device. After the blind holes are punched on the plastic film roll by the laser punching device, the plastic film roll is molded by the molding device. The purpose of the molding is to press out the prototype of the guide groove on the plastic film sheet. Then the plastic film sheet enters the heat sealing device for heat sealing. The upper and lower plastic film sheets are heat-sealed by the heat sealing device to form a bag body, and the guide groove on the bag body is also formed after hot pressing, and the plastic film sheet is transformed into a plurality of liquid bags connected together.

[0007] In the liquid bags produced by this production equipment, since a row of blind holes have been punched on the plastic film by a laser punching device before molding and heat sealing, after the liquid bags are formed, this row of blind holes is located at the diversion groove. This row of blind holes is actually an easily breakable zone on the bag wall (because the wall thickness of the bag body at the blind hole becomes thinner after laser sintering and is more easily torn open for the whole bag body), and the easily breakable zone is a linear easily breakable zone. Therefore, it can be easily torn open along this easily breakable zone, and the tearing process is to tear along this easily breakable zone to ensure that the whole diversion groove will not be torn off from the bag body.

[0008] To sum up, when this production equipment prepares the easily tearable liquid bags, the laser punching device is used to open blind holes on the plastic film. The existence of the blind holes makes a linear easily breakable zone formed at the diversion groove of the formed liquid bags. The existence of this easily breakable zone enables the tearing process to be carried out along this easily breakable zone, ensuring that the whole diversion groove will not be torn off from the bag body.

[0009] Specifically, in this production equipment, the heat sealing device includes a first-direction heat sealing device and a second-direction heat sealing device, and the first-direction heat sealing device and the second-direction heat sealing device perform heat sealing in the vertical and horizontal directions respectively.

[0010] Optionally, it further includes a die cutting device, and the die cutting device is arranged on one side of the heat sealing device.

[0011] Optionally, it further includes a bearing platform, and the molding device, the heat sealing device, the laser punching device and the die cutting device are arranged on the bearing platform.

[0012] Optionally, the unwinding device includes a motor, a frame and a roller. The roller is rotatably arranged on the frame, the motor is arranged on the frame, and the motor is cooperated with the roller.

[0013] The function of the motor is to drive the roller to rotate, and the rotation of the roller drives the plastic film to be transported and released towards the laser marking device.

[0014] Optionally, there are multiple rollers, and the rollers are parallel to each other.

[0015] Optionally, the frame is a square frame.

[0016] An easily tearable liquid bag prepared by a liquid bag production equipment adopting the easily tearable diversion groove as described above includes a bag body. The bag body is provided with a diversion groove, and is characterized in that a plurality of blind holes are arranged on the outer wall surface of the bag body, and the blind holes are arranged in a straight line on the outer wall surface of the bag body.

[0017] The blind holes (which are actually the sintering points formed by the laser punching device on the outer wall surface) are arranged in a straight line on the outer wall surface of the bag body. The blind holes arranged in a straight line form an easily breakable zone on the bag wall of the bag body. The existence of the easily breakable zone can

[0018] Optionally, blind holes are provided on both outer wall surfaces of the bag body.

[0019] The beneficial effects of the present utility model are as follows: When preparing the easily tearable liquid bag, blind holes are formed on the plastic film by using a laser drilling device. The existence of the blind holes forms a linear easily breakable zone at the diversion groove of the formed liquid bag. The existence of this easily breakable zone enables the tearing process to be carried out along this easily breakable zone, ensuring that the entire diversion groove will not be torn off from the bag body. Description of the Drawings

[0020] Figure 1 is a schematic structural diagram of a liquid bag with a diversion groove;

[0021] Figure 2 is a schematic structural diagram of a production device for a liquid bag with an easily tearable diversion groove;

[0022] Figure 3 is a schematic structural diagram of an easily tearable liquid bag.

[0023] Each reference numeral in the figure is: 101, heat-sealing part; 102, diversion groove; 103, blind hole; 1, plastic film; 2, unwind device; 201, stand; 202, motor; 203, roller; 3, laser drilling device; 4, die pressing device; 501, first-direction heat-sealing device; 502, second-direction heat-sealing device; 6, bearing block; 7, die cutting device. Detailed Embodiments

[0024] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0026] Embodiment 1

[0027] As shown in the Figure 2 drawings, a production device for a liquid bag with an easily tearable diversion groove includes an unwind device 2, a die pressing device 4, and a heat-sealing device. The die pressing device 4 is arranged between the unwind device 2 and the heat-sealing device, and further includes a laser drilling device 3, and the laser drilling device 3 is arranged between the unwind device 2 and the die pressing device 4.

[0028] In this liquid bag production equipment, the unwinding device 2 is used to release the plastic film roll. After being released by the unwinding device 2, the plastic film roll first undergoes a blind hole punching operation through the laser punching device 3. After the plastic film roll is punched with blind holes by the laser punching device 3, the plastic film roll undergoes die pressing through the die pressing device 4. The function of die pressing is to press out the prototype of the diversion groove on the plastic film sheet 1. Then, the plastic film sheet 1 enters the heat sealing device for heat sealing. The upper and lower plastic film sheets 1 are heat-sealed by the heat sealing device to form a bag body, and the diversion groove on the bag body is also formed after hot pressing. The plastic film sheet 1 is transformed into a number of connected liquid bags.

[0029] In the liquid bags produced by this production equipment, since the plastic film sheet 1 has been punched with a row of blind holes by the laser punching device 3 before die pressing and heat sealing, and this row of blind holes is located at the diversion groove after the liquid bags are formed. This row of blind holes is actually an easily breakable zone on the bag wall (because the wall thickness of the bag body at the blind hole becomes thinner after laser sintering and is more easily torn open for the whole bag body), and the easily breakable zone is a linear easily breakable zone. Therefore, it can be easily torn along this easily breakable zone, and the tearing process is to tear along this easily breakable zone to ensure that the whole diversion groove will not be torn off from the bag body.

[0030] In summary, when this production equipment prepares the easily tearable liquid bags, the laser punching device 3 is used to open blind holes on the plastic film sheet 1. The existence of the blind holes forms a linear easily breakable zone at the diversion groove of the formed liquid bags. The existence of this easily breakable zone enables the tearing process to be along this easily breakable zone, ensuring that the whole diversion groove will not be torn off from the bag body.

[0031] Specifically, in this production equipment, the heat sealing device includes a first-direction heat sealing device 501 and a second-direction heat sealing device 502. The first-direction heat sealing device 501 and the second-direction heat sealing device 502 perform heat sealing in the vertical and horizontal directions respectively.

[0032] As shown in the appendix Figure 2 it also includes a die cutting device 7, and the die cutting device 7 is arranged on one side of the heat sealing device.

[0033] As shown in the appendix Figure 2 it also includes a base 6, and the die pressing device 4, the heat sealing device, the laser punching device 3 and the die cutting device 7 are arranged on the base 6.

[0034] As shown in the appendix Figure 2 it also includes an unwinding device 2, and the unwinding device 2 includes a motor 202, a frame 201 and a roller 203. The roller 203 is rotatably arranged on the frame 201, the motor 202 is arranged on the frame 201, and the motor 202 is cooperated with the roller 203.

[0035] The function of the motor 202 is to drive the roller 203 to rotate, and the rotation of the roller 203 drives the plastic film sheet 1 to run and be released towards the laser marking device.

[0036] As shown in the Figure 2 accompanying drawings, there are multiple roller shafts 203, and the roller shafts 203 are parallel to each other.

[0037] As shown in the Figure 2 accompanying drawings, the gantry 201 is a square-shaped gantry 201.

[0038] Embodiment 2

[0039] A tearable liquid bag prepared by using the liquid bag production equipment with the tearable flow guiding groove described in the above embodiment, including a bag body, the bag body is prepared by heat-sealing a plastic film sheet 1, the bag body is provided with a flow guiding groove 102, and it is characterized in that a plurality of blind holes 103 are provided on the outer wall surface of the bag body, and the blind holes 103 are arranged in a straight line on the outer wall surface of the bag body.

[0040] The blind holes (which are actually the sintering points formed by the laser drilling device on the outer wall surface) are arranged in a straight line on the outer wall surface of the bag body. The blind holes 103 arranged in a straight line form a tearable zone on the bag wall of the bag body. The existence of the tearable zone can quickly tear the bag and ensure that the flow guiding groove 102 will not be torn off from the bag body.

[0041] Optionally, blind holes 103 are provided on both outer wall surfaces of the bag body.

[0042] The above-described embodiments only represent some embodiments of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A production device for a liquid bag with an easily tearable flow guide groove, comprising an unwinding device, a die pressing device and a heat sealing device, wherein the die pressing device is arranged between the unwinding device and the heat sealing device, and is characterized in that, It further includes a laser drilling device, and the laser drilling device is arranged between the unwinding device and the die pressing device.

2. The liquid bag production equipment with an easily tearable diversion groove according to claim 1, characterized in that, It further includes a die cutting device, and the die cutting device is arranged on one side of the heat sealing device.

3. The liquid bag production equipment with an easily tearable diversion groove according to claim 2, characterized in that, It further includes a bearing platform, and the die pressing device, the heat sealing device, the laser drilling device and the die cutting device are arranged on the bearing platform.

4. The liquid bag production equipment with an easily tearable flow guide groove according to claim 1, characterized in that, The unwinding device includes a motor, a frame and a rotating roller. The rotating roller is rotatably arranged on the frame, the motor is arranged on the frame, and the motor is cooperated with the rotating roller.

5. The liquid bag production equipment with an easily tearable diversion groove according to claim 4, characterized in that, There are multiple rotating rollers, and the rotating rollers are parallel to each other.

6. The liquid bag production equipment with an easily tearable diversion groove according to claim 4, characterized in that The frame is a square frame.

7. A tearable liquid bag prepared by a liquid bag production device using the tearable flow guide groove described in any one of claims 1 to 6, comprising a bag body, wherein the bag body is provided with a flow guide groove, and is characterized in that, A number of blind holes are arranged on the outer wall surface of the bag body, and the blind holes are arranged in a straight line on the outer wall surface of the bag body.

8. The tearable liquid bag according to claim 7, characterized in that, Blind holes are arranged on both outer wall surfaces of the bag body.

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