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CN-121973503-A - Valve bag folding forming detection device

CN121973503ACN 121973503 ACN121973503 ACN 121973503ACN-121973503-A

Abstract

The invention discloses a valve bag folding forming detection device, and relates to the technical field of paper valve bag manufacturing. The valve bag folding forming detection device comprises a machine body, a conveying module and a folding module which are arranged on a folding forming machine, wherein a coarse detection mechanism for detecting the folding state of the valve bag is arranged at the top of a mounting plate (10). The device comprises a machine body, a conveying module, a folding module and a coarse detection mechanism, wherein the coarse detection mechanism is in contact with a folding part through a ball, senses thickness change of the folding part in real time, drives a pointer to rotate through a push rod, and judges whether the folding is in place or not by identifying the position of the pointer through an industrial camera. Meanwhile, the device is also provided with a vibration mechanism and a flattening mechanism, the precise detection mechanism can detect when detecting folding abnormality, the folding state can be detected on line, the folding forming quality and consistency are improved, and the device is suitable for an automatic valve bag production line.

Inventors

  • ZHOU JINXUAN
  • ZHOU GUANGYI

Assignees

  • 温州德泰塑业有限公司

Dates

Publication Date
20260505
Application Date
20260312

Claims (10)

  1. 1. The valve bag folding forming detection device comprises a machine body (101), a conveying module (102) and a folding module (103) which are arranged on a folding forming machine, and is characterized in that the top of the machine body (101) is connected with a plurality of mounting plates (10) through a moving mechanism, the top of each mounting plate (10) is connected with a lifting plate (11) through a first lifting mechanism, a plurality of moving rods (12) which are arranged in an array are inserted into the top of each lifting plate (11), balls (13) are arranged at the bottom of each moving rod (12), a disc (14) is fixedly connected to the upper end of each moving rod (12), a gravity disc (15) is fixedly connected to the top of each disc (14), the side wall of each mounting plate (10) is connected with a pressing plate (16) through a second lifting mechanism, and the side wall of each pressing plate (16) is fixedly connected with a sloping plate (17); The utility model discloses a valve bag folding state detection device, including mounting panel (10), the top of mounting panel (10) is provided with the coarse inspection mechanism that is used for detecting valve bag folding state, coarse inspection mechanism includes first support frame (901) of fixed connection at mounting panel (10) top, and the lateral wall of first support frame (901) is connected with pointer (903) through torsion pivot (902) rotation, the top fixedly connected with installation piece (904) of mounting panel (10), and the top fixedly connected with calibrated scale (905) of installation piece (904) arc setting, the top fixedly connected with second support frame (906) of mounting panel (10), and the lateral wall fixed insertion of second support frame (906) is equipped with industrial camera (907), the lateral wall fixedly connected with push rod (908) of lifter plate (11) L type setting, and the tip of push rod (908) can slide at the top of pointer (903).
  2. 2. The valve bag folding forming detection device is characterized by further comprising a fine detection mechanism arranged on the machine body (101), wherein the fine detection mechanism comprises a laser displacement sensor and a data processing module, the laser displacement sensor is arranged on the second mounting frame (701) and is aligned with a folded valve bag folding position, the industrial camera (907) is used for collecting a position image of a pointer (903) on the dial (905) and performing preliminary judgment, and when the preliminary judgment result is that the folding is abnormal, the laser displacement sensor is triggered to perform high-precision scanning and rechecking on the folded position.
  3. 3. The valve bag fold formation detection device of claim 2, wherein the data processing module is provided with a secondary discrimination algorithm, comprising: The first stage is based on pointer position recognition algorithm of image processing, collect the dial (905) image through the industrial camera (907), after the image preprocessing, the pointer edge extraction, scale positioning, discern the scale value that the pointer (903) points out, judge whether in the range of presetted qualification, if surpass the range, judge as preliminary unusual; And a second stage, namely triggering a laser displacement sensor to transversely scan the folding part when the preliminary abnormality is judged based on a folding contour reconstruction algorithm of laser scanning, obtaining two-dimensional contour data of the folding part, obtaining an actual folding curve through least square fitting, comparing the actual folding curve with a standard template curve, calculating a deviation area and a maximum deviation value, and outputting a quantized detection report.
  4. 4. The valve bag folding forming detection device according to claim 1, wherein the moving mechanism comprises a fixed plate (201) fixedly connected to the top of the machine body (101), a cylinder (202) is fixedly connected to the side wall of the fixed plate (201), and the telescopic end of the cylinder (202) is fixed to the side wall of the mounting plate (10).
  5. 5. The valve bag folding forming detection device according to claim 1, wherein the first lifting mechanism comprises a fixing frame (301) fixedly connected to the top of the mounting plate (10), a cam (303) is rotatably connected to the side wall of the fixing frame (301) through a rotating shaft (302), the cam (303) can slide at the bottom of the lifting plate (11), and the rotation of the rotating shaft (302) is driven by a driving mechanism.
  6. 6. The valve bag folding forming detection device according to claim 5, wherein the driving mechanism comprises a gear (401) fixedly sleeved on the side wall of the rotating shaft (302), a first mounting frame (402) is fixedly connected to the top of the machine body (101), a rack (403) is fixedly connected to the top of the first mounting frame (402), and the rack (403) is meshed with the gear (401).
  7. 7. The valve bag folding forming detection device according to claim 1, wherein the second lifting mechanism comprises a lifting block (501), the pressing plate (16) is connected with the bottom of the lifting block (501) through a first spring telescopic rod (502), the lifting block (501) is connected with the side wall of the mounting plate (10) through a reset mechanism, and the movement of the lifting block (501) is pushed by a pushing mechanism.
  8. 8. The valve bag folding forming detection device according to claim 7, wherein the reset mechanism comprises a supporting plate (601) fixedly connected to the side wall of the mounting plate (10), and the lifting block (501) is connected with the bottom of the supporting plate (601) through a second spring telescopic rod (602).
  9. 9. The valve bag folding forming detection device according to claim 8, wherein the pushing mechanism comprises a second installation frame (701) at the top of the machine body (101), a triangular block (702) is fixedly connected to the bottom of the second installation frame (701), a pushing pin (703) is connected to the top of the lifting block (501) through a unidirectional rotation mechanism, and the upper end of the pushing pin (703) can slide on the side wall of the triangular block (702).
  10. 10. The valve bag folding forming detection device according to claim 9, wherein the unidirectional rotating mechanism comprises a base (801) fixedly connected to the top of the lifting block (501), two symmetrically arranged supporting blocks (802) are fixedly connected to the top of the base (801), a rotating block (804) is rotatably connected to the side wall of the supporting block (802) through a rotating pin (803), the rotating block (804) is fixed to the lower end of the pushing pin (703), a torsion spring (805) is fixedly connected between the rotating pin (803) and the supporting block (802), and a stop block (806) is fixedly connected to the top of the base (801).

Description

Valve bag folding forming detection device Technical Field The invention relates to the technical field of manufacturing of paper valve bags, in particular to a valve bag folding forming detection device. Background The valve port bag has the advantages of automatic filling and good sealing leakage resistance by virtue of the valve port structure, and is widely applied to the field of packaging of powder or granular materials such as dry powder building materials, chemical raw materials, feeds and the like. The paper valve bags occupy a large share in the market due to the characteristics of environmental protection, recoverability, strong printing adaptability and moderate cost. The production process of the paper valve bag is to use a plurality of layers of kraft paper as raw materials, firstly prepare continuous valve bag cylinder cloth, and then obtain a finished product through the procedures of fixed-length cutting, folding and forming at two ends, sticking valve ports and the like. The folding forming link is one of core procedures for determining the structural stability, the dimensional accuracy and the subsequent use reliability of the valve pocket, and is mainly manufactured through a folding forming automation device. Publication number CN102225630a discloses a valve bag folding forming detection device and a valve bag folding method, firstly, an on-line detection means for folding forming quality is lacking. After the folding is finished, operators can only judge whether the folding is in place or not and whether the folded edge is flat or not in a visual inspection mode, and real-time and continuous detection and control cannot be realized. When the defects of folding omission, folding inadequacy, edge folding rising and the like occur, the defects are difficult to find and process in time, so that a large number of defective products are generated, and the production cost and the material waste are increased; secondly, internal stress generated in the folding process cannot be effectively released. After the valve bags are stored, stacked, transported and carried and filled with load, the folded edge parts are easy to tear and damage, so that the risks of packaging loss and material waste are increased. Disclosure of Invention The invention aims to provide a valve bag folding forming detection device and a folding method, which are used for solving the problems in the background technology. The valve bag folding forming detection device comprises a machine body, a conveying module and a folding module, wherein the machine body, the conveying module and the folding module are arranged on a folding forming machine, the top of the machine body is connected with a plurality of mounting plates through a moving mechanism, the top of each mounting plate is connected with a lifting plate through a first lifting mechanism, a plurality of moving rods arranged in an array are inserted into the top of each lifting plate, balls are arranged at the bottoms of the moving rods, the upper ends of the moving rods are fixedly connected with discs, the tops of the discs are fixedly connected with gravity discs, the side walls of the mounting plates are connected with a pressing plate through a second lifting mechanism, and the side walls of the pressing plates are fixedly connected with inclined plates; The utility model discloses a valve bag folding state detection device, including the valve bag folding state, the top of mounting panel is provided with the coarse inspection mechanism that is used for detecting valve bag folding state, the coarse inspection mechanism includes the first support frame of fixed connection at the mounting panel top, and the lateral wall of first support frame rotates through torsion pivot to be connected with the pointer, the top fixedly connected with installation piece of mounting panel, and the calibrated scale of the top fixedly connected with arc setting of installation piece, the top fixedly connected with second support frame of mounting panel, and the lateral wall fixed insertion of second support frame is equipped with the industry camera, the lateral wall fixedly connected with L type push rod that sets up of lifter plate, and the tip of push rod can slide at the top of pointer. Preferably, the automatic valve bag automatic detection device further comprises a fine detection mechanism arranged on the machine body, wherein the fine detection mechanism comprises a laser displacement sensor and a data processing module, the laser displacement sensor is arranged on the second mounting frame and is aligned with the folded part of the folded valve bag, the industrial camera is used for collecting the position image of the pointer on the dial and performing preliminary judgment, and when the preliminary judgment result is that the folding is abnormal, the laser displacement sensor is triggered to perform high-precision scanning recheck on the folded part. Preferably, the data pr