Raw material unwinding device for plastic composite film bag production

Abstract

The utility model discloses a raw material unreeling device for plastic composite film bag production, which comprises a support base horizontally placed on the ground, a power box is fixedly mounted on the side edge above the support base, a control panel is fixedly mounted on the upper surface of the power box, and a mounting plate is arranged outside the side surface of the power box. Two symmetrically-arranged unwinding rollers are rotationally mounted on the outer portion of the mounting plate, a composite film roll needing to be unwound is nested on the outer portions of the unwinding rollers, and a switching mechanism used for switching the positions of the unwinding rollers is arranged in the power box. And a movable sliding table is arranged above the supporting base. According to the raw material unwinding device for plastic composite film bag production, all composite film rolls needing to be replaced are placed on the placing table, the height is adjusted through stretching and retracting of the adjusting air cylinder, then the movable sliding table slides on the electric sliding rail to move the composite film rolls and enable the composite film rolls to be nested outside the unwinding roller, installation operation is completed, manual operation is little in the whole process, and the production efficiency is improved. And the purpose of saving time and labor is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the packaging bag production technical field, concretely is a raw material unwinding device for plastic composite film bag production. BACKGROUND

[0002] Packaging bags are very common products in our life, used for packaging goods to achieve the purpose of convenient sales or quality preservation. In the process of packaging bag production, the raw materials (i.e. plastic composite film, etc.) need to be cut. When cutting, the unwinding device is used to uniformly unwind the coiled composite film raw material.

[0003] In the prior art, a kind of unwinding device for aluminized film packaging material production is disclosed in Chinese patent with application number CN201911110486.3, including base, the both sides of base top are fixedly installed with fixed plate, and unwinding roller is rotatably connected between two fixed plates, and driven roller is rotatably connected between two fixed plates and located at the front of unwinding roller, the driven roller is rotated by driving motor to drive driving roller, so that aluminized film is compressed and guided out at the same time, at this time, the aluminized film is guided by guide roller, so that it can be more smoothly guided out, when using for a period of time, aluminized film relaxes, two threaded rods are rotated, so that aluminized film is moved upward by guide roller, so that it is taut, thereby avoiding the inconvenience of unwinding caused by long-term relaxation.

[0004] As can be known from the above-mentioned material, in the prior art, the unwinding roller is generally used to unwind the coiled material, but in actual use, the coiled material has a large number of winding turns and a large overall weight, and the unwinding roller has a certain height, so that it is time-consuming and laborious to replace the coiled material. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a raw material unwinding device for plastic composite film bag production to solve the problem of time-consuming and laborious replacement of coiled material in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a raw material unwinding device for plastic composite film bag production, including support base placed horizontally on ground, power box is fixedly installed on the upper side of support base, control panel is fixedly installed on the upper surface of power box, mounting plate is arranged outside the side surface of power box, two symmetrical unwinding rollers are rotatably installed outside the mounting plate, and the composite film coil needs to be unwound is nested outside the unwinding roller, and conversion mechanism for switching the position of unwinding roller is arranged in the power box; mobile sliding table is arranged above support base, and left-right sliding structure is formed between mobile sliding table and electric sliding rail fixedly installed on the upper surface of support base; mounting bracket is fixedly installed on the front side of mobile sliding table, and guide roller is rotatably installed on the upper end of mounting bracket.

[0007] Preferably, the conversion mechanism comprises a driven gear mounted inside the power box, and the driven gear is coaxially fixedly mounted with the mounting plate rotating shaft, the driven gear drives the mounting plate to rotate, thereby switching the positions of the two upper and lower unwinding rolls.

[0008] Preferably, the driven gear is meshingly connected with a driving gear below, the number of teeth of the driving gear is less than that of the driven gear, and the driving gear is driven by a driving motor fixedly mounted inside the power box, the driving motor has a self-locking structure, and the self-locking function of the driving motor is used to prevent the driving gear and the driven gear from being randomly rotated.

[0009] Preferably, a placing table is arranged directly above the moving slide, and an inclined structure matching the composite film roll is arranged above the placing table, and the composite film roll is fixed by the inclined structure above the placing table.

[0010] Preferably, an adjusting cylinder is fixedly mounted between the placing table and the moving slide.

[0011] Preferably, clamping blocks are mounted on the left and right sides of the mounting frame, and a positioning groove is formed in the side surface of the clamping block, and the composite film during unwinding passes through the positioning groove.

[0012] Preferably, an extrusion ball is arranged inside the positioning groove and rotatably mounted with the clamping block, a connecting rod is fixedly mounted on the side surface of the clamping block and slidably penetrates the mounting frame, and a pulling spring is mounted on the outside of the connecting rod, and the composite film during conveying is tensioned by the pulling spring to reduce wrinkles that may occur during the process.

[0013] Compared with the prior art, the raw material unwinding device for plastic composite film bag production has the advantages that:

[0014] 1. The composite film roll to be replaced is placed on the placing table, the height is adjusted by the extension and retraction of the adjusting cylinder, then the composite film roll is moved and nested to the outside of the unwinding roll by sliding the moving slide on the electric slide rail, and the installation operation is completed, the whole process requires less manual operation, and the purpose of saving time and labor is achieved.

[0015] Further, after the replacement is completed, the driving motor inside the power box is started, the driving motor drives the driving gear, the driving gear drives the mounting plate to rotate, the positions of the two upper and lower unwinding rolls are switched, and the unwinding roll with the replaced composite film roll is rotated to the upper position for use.

[0016] 2. The guiding roll rotatably mounted on the upper end of the mounting frame guides the composite film during unwinding, so that the composite film can be smoothly conveyed into the machine.

[0017] Further, the left and right sides of the composite film are clamped by extrusion balls inside the clamping block during the composite film conveying process, and the elastic action of the pulling spring makes the clamping block keep moving to the side, so as to achieve the purpose of pulling and tensioning the composite film, and reduce the wrinkles that may occur during the composite film conveying process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a structure schematic view of the utility model mobile sliding table sliding out state;

[0020] Figure 3 It is a power box internal structure schematic view of the utility model;

[0021] Figure 4 It is a structure schematic view of the utility model mounting rack and mobile sliding table connection relation;

[0022] Figure 5 It is a structure schematic view of the utility model Figure 4 It is a structure schematic view of the utility model

[0023] Figure 6 It is a structure schematic view of the utility model clamping block inside.

[0024] In the figure: 1, support base; 2, power box; 3, control panel; 4, mounting plate; 5, unwinding roller; 6, composite film roll; 7, driven gear; 8, driving gear; 9, driving motor; 10, mobile sliding table; 11, electric sliding rail; 12, placing table; 13, adjusting cylinder; 14, mounting rack; 15, guide roller; 16, clamping block; 17, positioning groove; 18, extrusion ball; 19, connecting rod; 20, pulling spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Embodiment one: please refer to Figures 1-3The embodiment is provided with the following technical scheme to conveniently replace the roll material, and specifically discloses the following: a supporting base 1 is horizontally placed on the ground, a power box 2 is fixedly installed on the upper side of the supporting base 1, a control panel 3 is fixedly installed on the upper surface of the power box 2, an installation plate 4 is arranged on the side surface of the power box 2, two symmetrical unwinding rollers 5 are rotatably installed on the outside of the installation plate 4, a composite film roll 6 to be unwound is nested on the outside of the unwinding roller 5, and a conversion mechanism for switching the position of the unwinding roller 5 is arranged in the power box 2; a moving slide table 10 is arranged above the supporting base 1, and a left-right sliding structure is formed between the moving slide table 10 and an electric slide rail 11 fixedly installed on the upper surface of the supporting base 1; the conversion mechanism comprises a driven gear 7 installed in the power box 2, the driven gear 7 is coaxially fixedly installed with the rotation shaft of the installation plate 4, a driving gear 8 is engagedly connected below the driven gear 7, the number of teeth of the driving gear 8 is less than that of the driven gear 7, the driving gear 8 is driven by a driving motor 9 fixedly installed in the power box 2, the driving motor 9 has a self-locking structure, a placing table 12 is arranged above the moving slide table 10, an inclined structure matched with the composite film roll 6 is arranged above the placing table 12, and an adjusting cylinder 13 is fixedly installed between the placing table 12 and the moving slide table 10.

[0027] When the composite film roll 6 is replaced on the unwinding roller 5, the composite film roll 6 is first placed on the placing table 12, the inclined structure above the placing table 12 is used to fix the composite film roll 6, then the adjusting cylinder 13 is opened to push the placing table 12 upwards, so that the central position of the composite film roll 6 is aligned with the unwinding roller 5, then the electric slide rail 11 is opened to drive the moving slide table 10 to slide outside, so that the composite film roll 6 is nested outside the unwinding roller 5, after installation, the driving motor 9 in the power box 2 is started, at this time, the driving motor 9 drives the driving gear 8 to rotate under the action of the synchronous belt, so that the driven gear 7 engagedly connected with the driving gear 8 drives the installation plate 4 to rotate, so that the unwinding roller 5 below which the composite film roll 6 is replaced is rotated to the upper side, and the composite film roll 6 used up on the upper side is rotated to the lower side.

[0028] Embodiment two: please refer to Figures 4-6 The embodiment is provided with the following technical scheme to reduce the wrinkles of the composite film during unwinding, and specifically discloses the following: an installation frame 14 is fixedly installed on the front side of the moving slide table 10, a guide roller 15 is rotatably installed on the upper end of the installation frame 14, clamping blocks 16 are installed on the left and right sides of the installation frame 14, a positioning groove 17 is formed in the side surface of the clamping block 16, the composite film during unwinding passes through the positioning groove 17, the positioning groove 17 is internally provided with extrusion balls 18 rotatably installed with the clamping block 16, a connecting rod 19 slidingly penetrating through the installation frame 14 is fixedly installed on the side surface of the clamping block 16, and a pulling spring 20 is installed on the outside of the connecting rod 19.

[0029] The composite film roll 6 is guided by the guide roller 15 on the upper end of the mounting frame 14 during unwinding, so that it is transported into the machine at a proper angle, and the left and right ends of the composite film pass through the positioning slots 17 on the side of the clamping block 16, the composite film is clamped by the extrusion balls 18 in the positioning slots 17, and the clamping block 16 is pulled to the side by the connecting rod 19 under the pulling action of the pulling spring 20, so that the composite film is tensioned, thereby reducing the wrinkles that may occur during the transportation of the composite film.

[0030] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] Although the embodiments of the present application have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A raw material unwinding device for producing plastic composite film bags, comprising a support base (1) placed horizontally on the ground, a power box (2) fixedly installed on the upper side of the support base (1), and a control panel (3) fixedly installed on the upper surface of the power box (2), characterized in that, Also includes: The power box (2) is provided with an installation plate (4) on the outside of the side, and two symmetrically arranged unwinding rollers (5) are rotatably installed on the outside of the installation plate (4), and a composite film roll (6) to be unwound is nested outside the unwinding rollers (5). The power box (2) is provided with a switching mechanism for switching the position of the unwinding rollers (5). A movable slide (10) is provided above the support base (1), and the movable slide (10) and the electric slide rail (11) fixedly installed on the upper surface of the support base (1) form a left-right sliding structure. A mounting bracket (14) is fixedly installed on the front side of the movable slide (10), and a guide roller (15) is rotatably installed on the upper end of the mounting bracket (14).

2. The raw material unwinding device for producing plastic composite film bags according to claim 1, characterized in that: The conversion mechanism includes a driven gear (7) installed inside the power box (2), and the driven gear (7) is coaxially fixedly installed with the shaft of the mounting plate (4).

3. The raw material unwinding device for producing plastic composite film bags according to claim 2, characterized in that: The driven gear (7) is meshed with a driving gear (8) below it, and the number of teeth of the driving gear (8) is less than the number of teeth of the driven gear (7). The driving gear (8) is driven by a drive motor (9) fixedly installed inside the power box (2), and the drive motor (9) has a self-locking structure.

4. The raw material unwinding device for producing plastic composite film bags according to claim 1, characterized in that: A placement platform (12) is provided directly above the movable slide (10), and the upper part of the placement platform (12) is provided with an inclined structure that matches the composite film roll (6).

5. The raw material unwinding device for producing plastic composite film bags according to claim 4, characterized in that: An adjusting cylinder (13) is fixedly installed between the placement platform (12) and the movable slide (10).

6. The raw material unwinding device for producing plastic composite film bags according to claim 1, characterized in that: The mounting frame (14) is equipped with clamping blocks (16) on the left and right sides, and the clamping blocks (16) have positioning grooves (17) on their sides, through which the composite film passes during unwinding.

7. The raw material unwinding device for producing plastic composite film bags according to claim 6, characterized in that: The positioning groove (17) is provided with a pressing ball (18) that is rotatably mounted to the clamping block (16), and a connecting rod (19) that slides through the mounting frame (14) is fixedly mounted on the side of the clamping block (16), and a pulling spring (20) is installed on the outside of the connecting rod (19).

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