Automatic feeding device for BOPP shrink film production

Abstract

The utility model discloses an automatic feeding device for BOPP shrink film production, and relates to the technical field of BOPP shrink film production, the automatic feeding device comprises an extrusion cylinder, the top end and one side of the extrusion cylinder are respectively provided with a feed hopper and an extrusion pipe, the extrusion cylinder is internally provided with a feeding and stirring piece, the extrusion pipe is provided with a pressure sensor, the feed hopper is provided with an adjusting assembly, and the adjusting assembly is provided with a pressure sensor. And an unblocking assembly is arranged in the box body. According to the automatic feeding device for BOPP shrink film production, through cooperative arrangement of a pressure sensor and an adjusting assembly, more through holes in a rotating plate and a fixing plate are staggered or overlapped through linkage of a motor, a gear and a gear ring, the feeding speed of plastic particles can be adjusted according to the melting and discharging speed of the plastic particles, the melting efficiency and effect are guaranteed, and the automatic feeding device is suitable for popularization and application. The practicability of the device is enhanced; and meanwhile, the blockage clearing assembly is arranged, so that plastic particles blocked in the through holes of the fixed plate and the rotating plate can be conveniently cleared out, and the feeding speed is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to BOPP shrink film production technical field, concretely is a kind of automatic feeding device for BOPP shrink film production. BACKGROUND

[0002] BOPP shrink film, that is, biaxially oriented polypropylene film, is a multilayer co-extruded film made of polypropylene particles into a sheet, and then stretched in the vertical and horizontal directions. Because BOPP film has high tensile strength, impact strength, rigidity and toughness, and also has high transparency and gloss, it plays an important role in packaging materials and is widely used in food, daily necessities, industrial products and other fields.

[0003] However, the conventional feeding container does not have a function of reminding the staff to add material. When the staff forgets to add plastic particles, the phenomenon of material breakage may occur. To overcome the above-mentioned defects, the prior art (Chinese patent with application number 202322093417.4 and application date August 5, 2023) is a feeding device for shrink film production. When the height of the plastic particles decreases to the point where they need to be added, the falling ball drops synchronously, causing the steel plate at the other end of the rotating rod to rise and be attracted to the magnet plate. At this time, the metal spring piece drives the knocking block to knock the metal cover to produce a sound to remind the staff to add plastic particles to the feeding box, thereby avoiding the phenomenon of forgetting to add material. However, the above-mentioned device cannot adjust the feeding speed of the plastic particles according to the melting and discharging speed of the plastic particles during actual work, which affects the melting efficiency and effect of the particles, and the practicability of the device is not strong.

[0004] To solve the above-mentioned problems, it is necessary to innovate and design on the basis of the original equipment. Therefore, we propose an automatic feeding device for BOPP shrink film production, which can solve the above-mentioned problems. INVENTION CONTENTS

[0005] The utility model aims to provide an automatic feeding device for BOPP shrink film production to solve the problem that the device in the background art cannot adjust the feeding speed of the plastic particles according to the melting and discharging speed of the plastic particles during actual work, which affects the melting efficiency and effect of the particles, and the practicability of the device is not strong.

[0006] To achieve the above object, the utility model provides the following technical scheme: A kind of automatic feeding device for BOPP shrink film production, including extruding cylinder, the top of the extruding cylinder is respectively provided with feed hopper, extruding pipe, and inside is provided with feeding stirring part;Pressure sensor for real-time monitoring pressure in pipe is installed on the extruding pipe, adjusting assembly is arranged on the feed hopper, the adjusting assembly includes fixed plate that is fixedly connected to the inner wall of feed hopper, and the inner wall of feed hopper is rotatably connected with rotating plate below fixed plate, and multiple through holes that are distributed correspondingly are formed in fixed plate and rotating plate, the outer side wall of rotating plate is formed with gear ring, the top output shaft of motor is fixedly connected with gear, and gear is engaged with gear ring, and the motor is electrically connected with pressure sensor;The inside of feed hopper is provided with unblocking component above fixed plate, to facilitate the plastic particles blocked in the through hole of fixed plate and rotating plate to be cleaned out.

[0007] Preferably, a rotating groove is formed in the sidewall of the feed hopper to allow the gear ring to rotate horizontally and engage with the gear.

[0008] Preferably, the unblocking component includes a threaded rod that rotates vertically on the feed hopper, and the bottom end of the threaded rod penetrates to the outside of the feed hopper and is fixedly connected with a rotating wheel. The outside of the threaded rod is threadedly connected with a lifting frame. The bottom end of the lifting frame is fixedly connected with multiple lifting rods, and the bottom outer wall of each lifting rod is fixedly connected with an unblocking brush.

[0009] Preferably, the distribution position of the lifting rod corresponds to the through hole on the fixed plate, and the setting height of the unblocking brush matches the overall thickness of the fixed plate and the rotating plate, so that the unblocking brush can completely penetrate each through hole on the fixed plate and the rotating plate.

[0010] Preferably, an observation window is installed on the outer wall of the feed hopper above the fixed plate to facilitate the staff to check the blockage of the through hole and use the unblocking component in time.

[0011] Preferably, a protrusion is formed on the inner wall of the feed hopper, and a mounting block is formed on the outer wall of the threaded rod, and the mounting block rotates inside the protrusion. The inner wall of the feed hopper is fixedly connected with multiple stabilizing rods, and the lifting frame slides on the outside of the stabilizing rods.

[0012] Preferably, a combined telescopic rod is installed on the outer wall of the feed hopper, a spring is fixedly connected between the two rod bodies, and the bottom rod body is inserted into the inside of the rotating wheel.

[0013] Compared with the prior art, the automatic feeding device for BOPP shrink film production has the advantages that: the pressure sensor and the adjusting assembly are matched and arranged, the linkage of the motor, the gear and the gear ring makes the through holes on the rotating plate and the fixed plate staggered or overlapped more, the feeding speed of the plastic particles can be adjusted according to the melting and discharging speed of the plastic particles, the efficiency and effect of melting are ensured, and the practicability of the device is enhanced; meanwhile, the unblocking assembly is arranged, the plastic particles blocked in the through holes of the rotating plate and the fixed plate can be conveniently cleaned out, the feeding speed is ensured, and the specific content is as follows: (1) when the pipe wall pressure of the extrusion pipe is abnormal, the motor is automatically started to drive the gear to rotate, the gear drives the rotating plate to rotate through the meshing with the gear ring, the through holes on the rotating plate and the fixed plate are staggered or overlapped more, so that the feeding speed is slowed down or accelerated, the feeding speed of the plastic particles can be adjusted according to the melting and discharging speed of the plastic particles, the efficiency and effect of particle melting are ensured, and the practicability of the device is enhanced.

[0014] (2) the unblocking assembly is arranged, the rotating wheel drives the threaded rod to rotate, the lifting frame moves downward, the plurality of lifting rods and the unblocking brush move downward synchronously, so that the unblocking brush can enter the through holes on the fixed plate and the rotating plate and push the plastic particles blocked in the through holes downward, and since the unblocking brush is a flexible brush, the unblocking brush can smoothly enter the through holes on the fixed plate and the rotating plate even if the through holes are staggered, so that the unblocking is smoothly realized.

[0015] (3) the protrusions formed on the inner wall of the feeding hopper and the mounting blocks formed on the outer wall of the threaded rod can realize vertical limiting rotation of the threaded rod on the feeding hopper, and the stability of the vertical lifting of the lifting frame can be ensured through the arrangement of the plurality of stable rods.

[0016] (4) the combination of the telescopic rod and the spring makes the bottom rod body of the telescopic rod inserted into the inner side of the rotating wheel, so as to realize the axial limiting of the rotating wheel and the threaded rod, and then fix the height of the lifting frame. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a sectional structure schematic view of the extrusion cylinder of the utility model;

[0019] Figure 3 It is a sectional structure schematic view of the utility model Figure 1 It is an enlarged structure schematic view of A in the utility model;

[0020] Figure 4 It is a sectional structure schematic view of the feeding hopper of the utility model;

[0021] Figure 5The utility model discloses a connection structure schematic diagram of lifting frame and unblocking brush.

[0022] Figure 6 The utility model discloses Figure 2 The utility model discloses a connection structure schematic diagram of lifting frame and unblocking brush.

[0023] In the figure: 1, extruding cylinder;2, feed hopper;3, extruding pipe;4, feeding stirring part;5, pressure sensor;6, fixed plate;7, rotating plate;8, through -hole;9, gear ring;10, motor;11, gear;12, observation window;13, threaded rod;14, mounting block;15, lifting frame;16, steady pole;17, lifting rod;18, unblocking brush;19, runner;20, combined telescopic rod;21, spring. Specific implementation

[0024] 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 the utility model.

[0025] Embodiment one: please refer to Figures 1-6 The utility model provides following technical scheme: a kind of automatic feeding device for BOPP shrink film production, including extruding cylinder 1, the top of extruding cylinder 1 and one side are provided with feed hopper 2, extruding pipe 3 respectively, and inside is provided with feeding stirring part 4;Pressure sensor 5 for real-time monitoring pressure in pipe is installed on extruding pipe 3, adjusting assembly is provided on feed hopper 2, adjusting assembly includes fixed plate 6 that is fixedly connected in the inner wall of feed hopper 2, and the inner wall of feed hopper 2 is located below fixed plate 6 and is rotatably connected with rotating plate 7, and multiple through -holes 8 that are distributed correspondingly are formed on fixed plate 6 and rotating plate 7, and the outer side wall of rotating plate 7 is shaped with gear ring 9, motor 10 is fixedly installed on the top of extruding cylinder 1, and the top output shaft of motor 10 is fixedly connected with gear 11, and gear 11 is engaged with gear ring 9, and motor 10 and pressure sensor 5 are electrically connected, wherein, rotating groove is formed on the side wall of feed hopper 2, to supply gear ring 9 to rotate horizontally, to realize the engagement of gear ring 9 and gear 11, in turn realize the automatic regulation of feeding speed.

[0026] By the cooperation of the pressure sensor 5 and the adjusting assembly, the pressure sensor 5 is used to monitor the pipe wall pressure of the extrusion pipe 3 in real time, when the pressure value exceeds a certain limit, the control terminal will control the motor 10 to automatically start, the motor 10 drives the gear 11 to rotate, the gear 11 continues to drive the rotating plate 7 to rotate through the meshing with the gear ring 9, so that the through holes 8 on the rotating plate 7 and the fixed plate 6 are staggered more, thereby slowing down the feeding speed of the plastic particles, similarly, when the pressure value decreases to a certain limit, the motor 10 automatically starts to make the gear 11 reverse, and then the through holes 8 on the rotating plate 7 and the fixed plate 6 overlap more, thereby speeding up the feeding speed, so that the feeding speed of the plastic particles can be adjusted according to the melting and discharging speed of the plastic particles, to ensure the efficiency and effect of the particle melting, thereby enhancing the practicability of the device.

[0027] In the embodiment one, the inside of the feeding hopper 2 above the fixed plate 6 is provided with a blockage cleaning assembly, so as to clean the plastic particles blocked in the through holes 8 of the fixed plate 6 and the rotating plate 7, to ensure the feeding speed, the blockage cleaning assembly comprises a threaded rod 13 vertically rotating on the feeding hopper 2, and the bottom end of the threaded rod 13 penetrates to the outside of the feeding hopper 2 and is fixedly connected with a rotating wheel 19, wherein the inner wall of the feeding hopper 2 is formed with a protrusion, and the outer wall of the threaded rod 13 is formed with a mounting block 14, and the mounting block 14 rotates in the protrusion, to realize the vertical limiting rotation of the threaded rod 13 on the feeding hopper 2, the outer side of the threaded rod 13 is threadedly connected with a lifting frame 15, wherein the inner wall of the feeding hopper 2 is fixedly connected with a plurality of stable rods 16, and the lifting frame 15 slides on the outer side of the stable rods 16, to ensure the stability of the vertical lifting of the lifting frame 15, the bottom end of the lifting frame 15 is fixedly connected with a plurality of lifting rods 17, and the bottom outer wall of each lifting rod 17 is fixedly connected with a blockage cleaning brush 18, wherein the distribution position of the lifting rod 17 corresponds to the through hole 8 on the fixed plate 6, and the setting height of the blockage cleaning brush 18 matches the overall thickness of the fixed plate 6 and the rotating plate 7, so that the blockage cleaning brush 18 can completely penetrate each through hole 8 on the fixed plate 6 and the rotating plate 7, thereby ensuring the blockage cleaning effect.

[0028] By setting the blockage cleaning assembly, rotating the rotating wheel 19 to drive the threaded rod 13 to rotate, so that the lifting frame 15 moves downward, and the plurality of lifting rods 17 and the blockage cleaning brushes 18 descend synchronously, so that the blockage cleaning brushes 18 can enter the through holes 8 on the fixed plate 6 and the rotating plate 7 and push the plastic particles blocked therein, and because the blockage cleaning brushes 18 are flexible brushes, they can smoothly enter even if the through holes 8 on the fixed plate 6 and the rotating plate 7 are staggered by a part, to realize smooth blockage cleaning.

[0029] In addition, the outer wall of the feeding hopper 2 is provided with an observation window 12 above the fixed plate 6, so as to facilitate the staff to check the blockage of the through hole 8 and use the unblocking assembly in time, and the outer wall of the feeding hopper 2 is provided with a combined telescopic rod 20, and the spring 21 is fixedly connected between the two rod bodies, and the bottom rod body is inserted into the inner side of the rotating wheel 19, so as to realize the axial limiting of the rotating wheel 19 and the threaded rod 13, and then the height of the lifting frame 15 is fixed.

[0030] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic feeding device for BOPP shrink film production, comprising an extrusion cylinder (1), the top end of the extrusion cylinder (1) is respectively provided with a feeding hopper (2) and an extrusion pipe (3), and the inside is provided with a feeding stirring part (4); characterized in that A pressure sensor (5) is installed on the extrusion pipe (3), an adjusting assembly is arranged on the feeding hopper (2), the adjusting assembly comprises a fixed plate (6) connected to the inner wall of the feeding hopper (2), the inner wall of the feeding hopper (2) is rotatably provided with a rotating plate (7), a plurality of through holes (8) are formed in the fixed plate (6) and the rotating plate (7), a tooth ring (9) is formed on the outer side wall of the rotating plate (7), a motor (10) is installed at the top end of the extrusion cylinder (1), the top end output shaft of the motor (10) is connected with a gear (11), the gear (11) is engaged with the tooth ring (9), and the motor (10) is electrically connected with the pressure sensor (5); The inside of the feeding hopper (2) is provided with a blockage cleaning assembly above the fixed plate (6), so as to facilitate the cleaning of the blocked plastic particles in the through holes (8).

2. The automatic feeding device for BOPP shrink film production according to claim 1, characterized in that: A rotating groove is formed in the side wall of the feeding hopper (2) for horizontal rotation of the tooth ring (9).

3. The automatic feeding device for BOPP shrink film production according to claim 2, characterized in that: The blockage cleaning assembly comprises a threaded rod (13) vertically rotating on the feeding hopper (2), the bottom end of the threaded rod (13) penetrates to the outside of the feeding hopper (2) and is fixedly connected with a rotating wheel (19), the outside of the threaded rod (13) is threadedly connected with a lifting frame (15), the bottom end of the lifting frame (15) is fixedly connected with a plurality of lifting rods (17), and the bottom outer wall of each lifting rod (17) is fixedly connected with a blockage cleaning brush (18).

4. The automatic feeding device for BOPP shrink film production according to claim 3, characterized in that: The distribution position of the lifting rod (17) corresponds to the through hole (8) on the fixed plate (6), and the setting height of the blockage cleaning brush (18) matches the overall thickness of the fixed plate (6) and the rotating plate (7).

5. The automatic feeding device for BOPP shrink film production according to claim 3, characterized in that: An observation window (12) is installed on the outer wall of the feeding hopper (2) above the fixed plate (6) to facilitate the staff to check the blockage of the through hole (8) and use the blockage cleaning assembly in time.

6. The automatic feeding device for BOPP shrink film production according to claim 5, characterized in that: The inner wall of the feeding hopper (2) is formed with a protrusion, the outer wall of the threaded rod (13) is formed with a mounting block (14), and the mounting block (14) rotates in the protrusion, the inner wall of the feeding hopper (2) is fixedly connected with a plurality of stabilizing rods (16), and the lifting frame (15) slides on the outside of the stabilizing rods (16).

7. The automatic feeding device for BOPP shrink film production according to claim 6, characterized in that: A combined telescopic rod (20) is installed on the outer wall of the feeding hopper (2), a spring (21) is fixedly connected between the two rod bodies, and the bottom rod body is inserted into the inside of the rotating wheel (19).

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