Automatic positioning device of food packaging machine

By introducing a double-arm pneumatic limiting mechanism and a bidirectional bag edge limiting mechanism into the food packaging machine, the problems of offset and twisting of packaging materials during the unwinding process are solved, achieving stable conveying and precise adjustment of the packaging bag material, and improving production efficiency and product quality.

CN223803928UActive Publication Date: 2026-01-16JIANGSU CHUANGHENG INTELLIGENT EQUIP CO LTD
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Patent Information

Application Number
CN202520550490.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-01-16
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

The unwinding device of existing food packaging machines is prone to causing packaging materials to shift or twist during subsequent workstation operations such as unloading and cutting, which affects production efficiency and product quality.

Method used

The system employs a double-arm pneumatic limiting mechanism and a bidirectional bag edge limiting mechanism. Through the cooperation of the F-type roller frame, roller bag feeding mechanism and limiting roller, it ensures stable conveying of the packaging bag material. The double-arm pneumatic limiting mechanism provides stable support, while the bidirectional bag edge limiting mechanism is precisely adjusted according to the width of the packaging bag to prevent deviation and shaking.

Benefits of technology

This effectively prevents the packaging bag material from shifting and deforming, ensuring the smooth operation of subsequent processes and improving the stability of the production line and product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223803928U_ABST
Patent Text Reader

Abstract

The utility model discloses an automatic positioning device of a food packaging machine, which comprises an F-shaped roller frame, two notches arranged at the top end of the F-shaped roller frame, unwinding rollers mounted in the two notches and a double-arm pneumatic limiting mechanism mounted at the top end of the F-shaped roller frame, and the double-arm pneumatic limiting mechanism is used for blocking opening parts of the two notches. A roller type bag conveying mechanism and a limiting roller are installed in the position, below the unwinding roller, of the F-shaped roller frame, and packaging bag strips on the unwinding roller penetrate through the position between the roller type bag conveying mechanism and the limiting roller. The unwinding roller is stably installed at the top end of the F-shaped roller frame through the double-arm type pneumatic limiting mechanism, and the conveying process of packaging bag strips is effectively controlled through cooperation of the roller type bag conveying mechanism, the limiting roller and the two-way bag edge limiting mechanism.
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Description

TECHNICAL FIELD

[0001] The utility model relates to food packaging technical field, concretely is a food packaging machine automatic positioning device. BACKGROUND

[0002] The packaging bag unwinding device of food packaging machine is an important component part indispensable in the packaging production line, its main function is to ensure the stable supply of the roll-shaped packaging material to support the subsequent bag making, filling and sealing processes, the design of this device not only considers the smooth conveying of the material, but also effectively avoids the problems such as damage, distortion or entanglement of the material during unwinding, so as to improve production efficiency and product quality, the unwinding device is usually composed of an unwinding shaft, a support frame, a tension control system and a guide device, the unwinding shaft is the core component for placing the roll material, and its design is usually detachable to facilitate the replacement of packaging materials of different specifications, the support frame is used to support the entire unwinding device to ensure its stability and safety, the tension control system is the key part of the unwinding device, mainly used for adjusting the tension of the packaging material during unwinding, usually equipped with a sensor, which can monitor the tension of the material in real time and automatically adjust, so as to avoid damage of the material caused by improper tension, and the guide device is responsible for guiding the packaging material to smoothly enter the subsequent processing link to avoid the offset or entanglement of the material, at present, the packaging bag unwinding device of food packaging machine will cause the offset of the strip-shaped packaging material on the guide device during use due to the actions such as discharging, cutting and heat sealing of the subsequent workstations, for example, during the discharging process, uneven or too violent material feeding will cause instantaneous pulling of the material on the guide device, and further cause offset, during the cutting process, inaccurate cutting position or too fast cutting speed will also easily cause instantaneous deformation of the material, with the increase of the offset and misalignment amount, the packaging material sent out by the unwinding device will be deformed or twisted, further affecting the smooth progress of the subsequent processing procedures, therefore, an automatic positioning device is needed to guide the discharging action of the unwinding device. UTILITY MODEL CONTENTS

[0003] The utility model discloses a food packaging machine automatic positioning device, and the unwinding roller with packaging bag material is installed at the top of the F-shaped roller frame through the double-arm type pneumatic limiting mechanism, and the packaging bag material to be used passes between the roller type bag feeding mechanism and the limiting roller and passes through the bidirectional bag edge limiting mechanism and is introduced into the next processing equipment, at this time, the bidirectional bag edge limiting mechanism is adjusted according to the width of the packaging bag material to avoid the shaking offset of the packaging bag material during unwinding, so as to solve the problems in the above background technology.

[0004] In order to achieve the above object, the utility model provides the following technical scheme: a food packaging machine automatic positioning device, including F type roller frame, two lack grooves which are arranged at the top of F type roller frame, the unwinding roller which is installed in the two lack grooves and the double -arm type pneumatic limiting mechanism which is installed at the top of F type roller frame, the double -arm type pneumatic limiting mechanism is used to form the obstruction in the opening portion of two lack grooves, the roller type bag feeding mechanism and the limiting roller are installed in the F type roller frame below the unwinding roller, and the packaging bag belt material on the unwinding roller passes between the roller type bag feeding mechanism and the limiting roller, one side of the F type roller frame below the unwinding roller is installed with U type frame, and the double -direction bag edge limiting mechanism is installed in the U type frame, and the double -direction bag edge limiting mechanism is used to limit the left and right edges of packaging bag belt material.

[0005] Preferably, the double -arm type pneumatic limiting mechanism includes the double -rod air cylinder installed on the outer wall of one side of F type roller frame, the crossbeam installed at the top end of double -rod air cylinder piston rod and the blocking arm fixed on both ends of the surface of crossbeam, the blocking arm is located above the lack groove, and the bottom end surface of the blocking arm is in sliding contact with the top plane of F type roller frame.

[0006] Preferably, the roller type bag feeding mechanism includes the step motor installed on the outer wall of one side of F type roller frame, the transmission shaft installed at one end of step motor drive shaft and the rubber sleeve fixed on both ends of the surface of transmission shaft, and the rubber sleeve and the limiting roller abut each other.

[0007] Preferably, the double -direction bag edge limiting mechanism includes the horizontal rod fixed at the upper and lower positions in the U type frame, the double -rod sliding table slidingly installed on both ends of the surface of horizontal rod and the vertical direction two double -rod sliding tables fixed with vertical rollers, the recess is arranged on the outer wall of one side of two vertical rollers close to each other, and one side of the U type frame is installed with the double -direction screw linear module for driving the two double -rod sliding tables in horizontal direction to move towards each other.

[0008] Preferably, the double -direction screw linear module includes the double -direction screw rod rotatingly installed on one side of the U type frame, the nut pair installed at the threaded position on both ends of the surface of double -direction screw rod and the second motor installed on the outer wall of one side of F type roller frame for driving double -direction screw rod to rotate, and one side of the nut pair is fixedly connected with one side of the double -rod sliding table.

[0009] Preferably, the horizontal rod and the double -rod sliding table are made of stainless steel components, and the width of the recess is 0.5cm to 2cm.

[0010] Compared with the prior art, the food packaging machine automatic positioning device has the advantages that the unwinding roller is stably installed at the top end of the F-shaped roller frame through the double-arm pneumatic limiting mechanism, and the conveying process of the packaging bag belt material is effectively controlled through the cooperation of the roller bag conveying mechanism, the limiting roller and the bidirectional bag edge limiting mechanism, the use of the double-arm pneumatic limiting mechanism enables the unwinding roller to be stably installed at the top end of the F-shaped roller frame, so that good support and fixation are provided, and the shaking of the unwinding roller caused by vibration or external force is reduced, the stable unwinding roller can ensure the smoothness of the packaging bag belt material during the conveying process; and the bidirectional bag edge limiting mechanism is used to accurately adjust the width of the packaging bag belt material, so that the tearing and deformation of the packaging bag caused by the deviation and shaking of the material are avoided, the packaging bag belt material is kept stable during the whole process, and it is ensured that each packaging bag can be filled, heat-sealed and cut at the subsequent correct workstations, so that the poor sealing or inaccurate cutting caused by the deviation of the material is avoided, and the production line can continuously operate. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a front view structural schematic diagram of the utility model;

[0012] Figure 2 It is a side view structural schematic diagram of the utility model;

[0013] Figure 3 It is a three-dimensional structural schematic diagram of the utility model Figure 1 ;

[0014] Figure 4 It is a three-dimensional structural schematic diagram of the utility model Figure 2 ;

[0015] Figure 5 It is a three-dimensional sectional structural schematic diagram of the utility model.

[0016] In the drawing: 1, F-shaped roller frame; 101, slot; 2, unwinding roller; 3, double-arm pneumatic limiting mechanism; 301, double-rod pneumatic cylinder; 302, cross beam; 303, blocking arm; 4, roller bag conveying mechanism; 401, stepping motor; 402, transmission shaft; 403, rubber sleeve; 5, limiting roller; 6, U-shaped frame; 7, bidirectional bag edge limiting mechanism; 701, cross rod; 702, double-rod sliding table; 703, vertical roller; 704, groove; 705, bidirectional screw linear module. DETAILED DESCRIPTION

[0017] 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. 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.

[0018] Please refer to Figures 1-5 The utility model provides an embodiment: a kind of food packaging machine automatic positioning device, including F-shaped roller stand 1, two missing slots 101 being arranged at the top of F-shaped roller stand 1, unwinding roller 2 being installed in two missing slots 101 inside and double-arm pneumatic limiting mechanism 3 being installed at the top of F-shaped roller stand 1, double-arm pneumatic limiting mechanism 3 is used to form obstruction in the opening portion of two missing slots 101, limiting roller 5 is installed in the inside of F-shaped roller stand 1 below unwinding roller 2, roll type bag feeding mechanism 4, limiting roller 5 is installed in the inside of F-shaped roller stand 1 below unwinding roller 2, packaging bag belt material on unwinding roller 2 passes between roll type bag feeding mechanism 4, limiting roller 5, U-shaped frame 6 is installed in one side of F-shaped roller stand 1 below unwinding roller 2, two-way bag edge limiting mechanism 7 is installed in the inside of U-shaped frame 6, two-way bag edge limiting mechanism 7 is used to limit the left and right edges of packaging bag belt material;

[0019] Double-arm pneumatic limiting mechanism 3 includes double-rod pneumatic cylinder 301 being installed on the outer wall of one side of F-shaped roller stand 1, beam 302 being installed at the top end of double-rod pneumatic cylinder 301 piston rod and fixed blocking arm 303 on the surface of beam 302 both ends, blocking arm 303 is located above missing slot 101, and the bottom end surface of blocking arm 303 is in sliding contact with the top plane of F-shaped roller stand 1, staff starts double-rod pneumatic cylinder 301 to work, utilizes double-rod pneumatic cylinder 301 to make beam 302, blocking arm 303 move towards the direction of unwinding roller 2, until blocking arm 303 passes from the top of missing slot 101, at this time, blocking arm 303 blocks the opening side of missing slot 101, to prevent the shaft end of unwinding roller 2 from being out of missing slot 101, and ensure the rotation stability of unwinding roller 2;

[0020] Roll type bag feeding mechanism 4 includes step motor 401 being installed on the outer wall of one side of F-shaped roller stand 1, transmission shaft 402 being installed at one end of step motor 401 drive shaft and fixed rubber sleeve 403 on the surface of transmission shaft 402 both ends, rubber sleeve 403 and limiting roller 5 abut each other, packaging bag belt material passes between rubber sleeve 403, limiting roller 5, since rubber sleeve 403 has certain softness, then rubber sleeve 403, limiting roller 5 can produce pressure to packaging bag belt material, when step motor 401 drives transmission shaft 402, rubber sleeve 403 rotation can broadcast packaging bag belt material downward, ensure the discharging stability of unwinding roller 2;

[0021] The bidirectional bag edge limiting mechanism 7 comprises a horizontal rod 701 fixed at the upper and lower positions inside the U-shaped frame 6, two double-rod sliding tables 702 slidingly installed at the two ends of the surface of the horizontal rod 701, and two vertical rollers 703 fixed between the two double-rod sliding tables 702 in the vertical direction, and recesses 704 are arranged on the side walls of the two vertical rollers 703 close to each other. The horizontal rod 701 and the double-rod sliding tables 702 are made of stainless steel components, and the width of the recesses 704 is 0.5-2 cm. A bidirectional screw linear module 705 is installed on one side of the inside of the U-shaped frame 6 for driving the two double-rod sliding tables 702 in the horizontal direction to move towards each other.

[0022] The bidirectional screw linear module 705 comprises a bidirectional screw rod rotatingly installed on one side of the inside of the U-shaped frame 6, a nut pair installed at the threaded portions at the two ends of the surface of the bidirectional screw rod, and a second motor installed on one side of the outer wall of the F-shaped roller frame 1 for driving the bidirectional screw rod to rotate. The outer wall of one side of the nut pair is fixedly connected with the outer wall of one side of the double-rod sliding table 702. The edge of the packaging bag material is located in the recess 704 of the vertical roller 703. At this time, the worker opens the bidirectional screw linear module 705 according to the actual width of the packaging bag to work. The bidirectional screw linear module 705 drives the two double-rod sliding tables 702 and the two vertical rollers 703 in the same X-axis direction to move close to each other until the edge of the packaging bag material is located in the recess 704 and remains stable, thereby preventing the deviation of the packaging bag material.

[0023] The worker needs to install a PLC control panel on the outer wall of the F-shaped roller frame 1 for controlling the stepping motor 401, the bidirectional screw linear module 705, and the cross beam 302, so as to control the electrical components of the device to work.

[0024] The embodiment of the application is used, first, the unwinding roll 2 with the packaging bag belt material is installed at the top of the F-shaped roller frame 1, and the double-arm pneumatic limiting mechanism 3 is used to lock the unwinding roll 2, so that the unwinding roll 2 remains stable in the subsequent material unwinding process, then the packaging bag belt material is passed between the roller bag feeding mechanism 4 and the limiting roller 5, and from the two-way bag edge limiting mechanism 7, at this time, the workers adjust the positioning area of the two-way bag edge limiting mechanism 7 according to the actual width of the packaging bag, to ensure that it can firmly limit the edge of the packaging bag, to prevent deviation during the conveying process, so that the packaging bag belt material passing through the two-way bag edge limiting mechanism 7 is introduced into the next processing equipment, during the production process, the working state of the two-way bag edge limiting mechanism 7 is checked regularly to ensure that it can work normally, and faults are found and eliminated in time; the workers start the roller bag feeding mechanism 4 and the external processing equipment, then the roller bag feeding mechanism 4 and the limiting roller 5 use friction and appropriate pressure to broadcast the packaging bag belt material, at this time, according to the characteristics and production rhythm of the packaging bag, the bag feeding speed of the roller bag feeding mechanism 4 is adjusted in time to avoid deviation of the packaging bag due to too fast speed; during the continuous broadcasting of the packaging bag belt material by the unwinding roll 2, the roller bag feeding mechanism 4 and the limiting roller 5, the two-way bag edge limiting mechanism 7 always guides the packaging bag to prevent it from deviating from the center during the conveying process, so that the packaging bag is in the correct position, so that the next stage equipment obtains the packaging bag belt material in a stable state.

Claims

1. A food packaging machine automatic positioning device, characterized by: The utility model provides a kind of double-arm pneumatic limiting mechanism (3) for forming obstruction in the opening of two notches (101), and the F-shaped roller stand (1) is internally provided with roller type bag feeding mechanism (4) and limiting roller (5) below the unwinding roller (2), the packaging bag belt material on the unwinding roller (2) passes between roller type bag feeding mechanism (4) and limiting roller (5), and the F-shaped roller stand (1) is provided with U-shaped frame (6) on one side below the unwinding roller (2), and the U-shaped frame (6) is internally provided with bidirectional bag edge limiting mechanism (7) for limiting the left and right edges of packaging bag belt material.

2. An automatic positioning device for a food packaging machine according to claim 1, characterized in that: The double-arm pneumatic limiting mechanism (3) includes a double-rod air cylinder (301) mounted on the outer wall of the F-shaped roller stand (1), a cross beam (302) mounted on the top end of the piston rod of the double-rod air cylinder (301), and a blocking arm (303) fixed on both ends of the surface of the cross beam (302), wherein the blocking arm (303) is located above the notch (101), and the bottom end surface of the blocking arm (303) is in sliding contact with the top end plane of the F-shaped roller stand (1).

3. An automatic positioning device for a food packaging machine according to claim 1, characterized in that: The roller type bag feeding mechanism (4) includes a stepping motor (401) mounted on the outer wall of the F-shaped roller stand (1), a transmission shaft (402) mounted on one end of the driving shaft of the stepping motor (401), and a rubber sleeve (403) fixed on both ends of the surface of the transmission shaft (402), wherein the rubber sleeve (403) and the limiting roller (5) are in abutment with each other.

4. An automatic positioning device for a food packaging machine according to claim 1, characterized in that: The bidirectional bag edge limiting mechanism (7) includes a horizontal rod (701) fixed inside the U-shaped frame (6) at upper and lower positions, double-rod sliding tables (702) slidingly mounted on both ends of the surface of the horizontal rod (701), and vertical stand rollers (703) fixed between the two double-rod sliding tables (702) in vertical direction, wherein the side wall of each of the two stand rollers (703) close to each other is provided with a groove (704), and one side of the inside of the U-shaped frame (6) is provided with a bidirectional screw linear module (705) for driving the two double-rod sliding tables (702) in horizontal direction to move towards each other.

5. An automatic positioning device for a food packaging machine according to claim 4, characterized in that: The bidirectional screw linear module (705) includes a bidirectional screw rod rotatingly mounted on one side of the inside of the U-shaped frame (6), a nut pair mounted at the threaded positions on both ends of the surface of the bidirectional screw rod, and a second motor mounted on the outer wall of one side of the F-shaped roller stand (1) for driving the bidirectional screw rod to rotate, wherein the outer wall of one side of the nut pair is fixedly connected with the outer wall of one side of the double-rod sliding table (702).

6. An automatic positioning device for a food packaging machine according to claim 4, characterized in that: The horizontal rod (701) and the double-rod sliding table (702) are both made of stainless steel components, and the width of the groove (704) is 0.5cm to 2cm.