A woven bag length and width detection device

Abstract

The invention discloses a woven bag length and width detection device, and the invention relates to the technical field of woven bag detection. The woven bag length and width detection device, through the cooperation of the detection pressure roller and the limit slide plate, when the woven bag body moves to contact the detection pressure roller, it can move down with the limit slide plate, drive the elastic paddle, the outer paddle plate and the elastic end head to move down, so that the woven bag body completes the stretching operation during the detection, and ensures the timeliness of the detection through the contact between the conductive ring and the conductive sheet, further improving the detection efficiency and detection accuracy of the woven bag body.

Description

Technical Field

[0001] The invention relates to the technical field of woven bag detection, in particular to a woven bag length and width detection device. Background Art

[0002] Woven bags, also known as snakeskin bags, are a type of plastic bag used for packaging. Their raw materials are generally various chemical plastic raw materials such as polyethylene and polypropylene. Referring to the Chinese patent application number "202020503535.1" "A Woven Bag Length and Width Detection Device", the patent points out that when the existing equipment detects the length and width of a woven bag, it is necessary to adjust the detection rod each time a woven bag is detected, and the detection efficiency is low; however, the above method still has the problem of poor continuity, which greatly prolongs the time required for detection when conducting batch detection. In this regard, we propose a woven bag length and width detection device to solve the above problems. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a woven bag length and width detection device, which solves the problems raised in the above background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a woven bag length and width detection device, including a body, a protective cover is fixed on the outside of the body, and a control module is installed on the outside of the protective cover, a conveyor belt is rotatably connected inside the body, and a woven bag body is conveyed above the conveyor belt;

[0005] A driving shaft is rotatably connected inside the machine body, a detection roller is fixedly sleeved on the outside of the driving shaft, a conductive ring is fixedly sleeved on the outside of the detection roller, a conductive sheet adapted to the conductive ring is fixedly installed on the outside of the conveyor belt, and a series circuit is formed between the conductive sheet, the conductive ring and the control module. When the woven bag body moves between the conductive sheet and the conductive ring as the conveyor belt moves, the circuit is disconnected, and the number of rotations of the driving shaft when the circuit is disconnected is recorded, thereby obtaining the length of the woven bag body;

[0006] A width detection frame is fixed inside the machine body, a camera module is fixed inside the width detection frame, the camera module is used to photograph and identify the width of the woven bag body, and a scale ruler is fixedly installed at the bottom of the width detection frame.

[0007] Preferably, the interior of the body is connected to a limiting slide for sliding up and down, and an elastic paddle is fixedly installed at the bottom of the limiting slide. The elastic paddle is used to slide downward when the woven bag body contacts the running detection roller, and to slide upward and reset in time when the elastic paddle touches the woven bag body, so as to force the woven bag body to stretch longitudinally.

[0008] Preferably, slide grooves are provided on both sides of the interior of the body, the limiting slide plate is slidably connected inside the slide grooves, a hydraulic cylinder is fixedly installed on the inner top surface of the body, and the piston end of the hydraulic cylinder is fixedly connected to the top surface of the limiting slide plate.

[0009] Preferably, two transmission plate frames are fixedly installed on the outer side of the limiting slide plate, and a plurality of outer shifting plates are obliquely installed at the bottom of the two transmission plate frames, and elastic end heads are fixedly installed at the ends of the outer shifting plates. The elastic end heads can slide downward with the outer shifting plates until they come into contact with the conveyed woven bag body and then shift it to both sides, so that the woven bag body can be stretched laterally.

[0010] Preferably, the outer shifting plates on both sides are symmetrical to each other, and the outer sides of the two transmission plate frames are fixedly connected with connecting frames and fixedly connected to the limiting slide plate through the connecting frames, and the ends of the connecting frames are provided with a plurality of positioning holes for connection.

[0011] Preferably, a plurality of heating rods are fixedly installed inside the detection roller for heating and shaping the conveyed woven bag body, a conductive component is provided at the end of the driving shaft, a servo motor is fixedly installed on the outside of the machine body, and a coupling is provided between the piston end of the servo motor and the end of the driving shaft.

[0012] Preferably, the conductive component includes a conductive moving ring and a conductive static ring, a fixed rod is fixedly connected between the conductive static ring and the body, and a plurality of conductive slots are opened inside the conductive static ring, the conductive static ring is connected to an external power supply, the conductive moving ring is fixedly sleeved on the end of the driving shaft, a plurality of conductive ends are fixed on the outside of the conductive moving ring, the plurality of conductive ends are respectively slidably connected in the corresponding conductive slots, and the conductive ends are electrically connected to the plurality of heating rods and the conductive sheets through wires.

[0013] Preferably, a transmission shaft is provided inside the machine body, a pressing roller is fixedly sleeved on the outer side of the transmission shaft, the transmission shaft is rotatably installed inside the machine body, and sprockets are fixedly sleeved on the ends of the transmission shaft and the drive shaft and are connected to a transmission chain via the sprockets.

[0014] Preferably, a calibration component is provided inside the machine body for marking unqualified products, and the calibration component includes a fixed plate, which is fixedly installed inside the machine body, a telescopic cylinder is fixedly installed inside the fixed plate, and a marking end is fixedly installed on the piston end of the telescopic cylinder.

[0015] Preferably, the interior of the marking end is hollow and stores ink, a sponge pad is fixedly installed at the bottom of the marking end, and a plurality of micro holes for communication are provided between the sponge pad and the interior of the marking end.

[0016] The present invention provides a woven bag length and width detection device. Compared with the prior art, it has the following beneficial effects:

[0017] (1) The length and width detection device for woven bags, through the cooperation between the detection roller and the limit slide, can move downward with the limit slide when the woven bag body moves to contact the detection roller, drive the elastic paddle, the outer paddle plate and the elastic end head to move downward, so that the woven bag body can complete the stretching operation during the detection, and ensure the timeliness of the detection through the contact between the conductive ring and the conductive sheet, further improving the detection efficiency and detection accuracy of the woven bag body.

[0018] (2) The woven bag length and width detection device uses a detection roller and a heating rod installed inside. During the detection process, the operation of the heating rod can heat up the detection roller to achieve shaping of the woven bag body, so that the woven bag body after stretching is free from wrinkles when passing through the detection roller, further improving the detection accuracy of the equipment and the convenience of subsequent processing of the woven bag body.

[0019] (3) The woven bag length and width detection device, through the setting of the calibration component, when a product with unqualified size is detected, the telescopic cylinder moves downward to drive the marking end to move downward until the marking end contacts the woven bag body, completing the marking process, which is convenient for subsequent processing of the unqualified woven bag body and ensures the continuity of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the machine body of the present invention;

[0022] Figure 3 For the present invention Figure 2 A schematic diagram of the enlarged structure of point A;

[0023] Figure 4 For the present invention Figure 2 Sectional front view;

[0024] Figure 5 This is a schematic diagram of the cross-sectional structure of the driving shaft of the present invention;

[0025] Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0026] Figure 7 It is a schematic diagram of the structure of the limiting slide plate and the woven bag body of the present invention;

[0027] Figure 8 For the present invention Figure 7 Rear view;

[0028] Fig. 9 For the present invention Figure 8 Enlarged structural diagram at point C in the middle.

[0029] In the figure: 1, machine body; 101, slide; 2, protective cover; 201, control module; 3, conveyor belt; 301, rotating shaft; 4, conductive sheet; 5, woven bag body; 6, limit slide plate; 601, hydraulic cylinder; 602, elastic paddle; 7, driving shaft; 701, detection roller; 702, conductive ring; 703, heating rod; 8, servo motor; 9, fixed plate; 10, telescopic cylinder; 1001, marking end; 11, Transmission shaft; 1101, pressing roller; 12, sprocket; 1201, transmission chain; 13, width detection frame; 1301, camera module; 1302, scale ruler; 14, conductive moving ring; 1401, conductive terminal; 15, conductive static ring; 1501, conductive notch; 1502, fixing rod; 16, transmission plate frame; 1601, connecting frame; 1602, positioning hole; 17, outer dial plate; 1701, elastic terminal. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 9 The present invention provides two technical solutions, which specifically include the following embodiments:

[0032] Embodiment 1: In the embodiment of the present invention, reference Figure 1 A woven bag length and width detection device includes a machine body 1, a protective cover 2 is fixed on the outside of the machine body 1, and a control module 201 is installed on the outside of the protective cover 2, a conveyor belt 3 is rotatably connected inside the machine body 1, a woven bag body 5 is transported above the conveyor belt 3, and both sides of the conveyor belt 3 are rotatably connected to a rotating shaft 301, the rotating shaft 301 is rotatably installed inside the machine body 1 and driven by a separate motor, and is used to drive the conveyor belt 3 to rotate inside the machine body 1 to realize the conveying operation of the woven bag body 5, and the control module 201 is based on the existing PLC control;

[0033] In the embodiment of the present invention, further, reference is made to Figure 1-Figure 9The body 1 is rotatably connected with a driving shaft 7 inside, a detection roller 701 is fixedly sleeved on the outside of the driving shaft 7, a conductive ring 702 is fixedly sleeved on the outside of the detection roller 701, a conductive sheet 4 adapted to the conductive ring 702 is fixedly installed on the outside of the conveyor belt 3, and a series circuit is formed between the conductive sheet 4, the conductive ring 702 and the control module 201. When the woven bag body 5 moves between the conductive sheet 4 and the conductive ring 702 as the conveyor belt 3 moves, the circuit is disconnected, and the number of rotations of the driving shaft 7 when the circuit is disconnected is recorded, thereby obtaining the length of the woven bag body 5, and the conveyor belt 3 is moved to the conductive sheet 4. During the operation of the belt 3, the conductive sheet 4 can be driven to operate, and the driving shaft 7 drives the outer detection roller 701 and the conductive ring 702 to rotate. At this time, as the conductive ring 702 can always contact with the conductive sheet 4, the circuit is kept connected. When the woven bag body 5 enters between the conductive ring 702 and the conductive sheet 4, the circuit is disconnected. After the woven bag body 5 passes between the conductive ring 702 and the conductive sheet 4, as the conductive ring 702 and the conductive sheet 4 are re-contacted, the circuit is connected. At this time, the length can be calculated by the number of rotations of the driving shaft 7 when the circuit is disconnected;

[0034] In the embodiment of the present invention, specifically, the number of rotations of the driving shaft 7 when the circuit is disconnected is obtained by the number of rotations of the output end of the servo motor 8, the servo motor 8 is controlled based on the control module 201, C is used to represent the circumference of the detection roller 701, S is used to represent the number of rotations of the driving shaft 7, and the length of the woven bag body 5 is C*S;

[0035] In the embodiment of the present invention, further, reference is made to Figure 5 A width detection frame 13 is fixed inside the machine body 1, and a camera module 1301 is fixed inside the width detection frame 13. The camera module 1301 is used to shoot and identify the width of the woven bag body 5. A scale ruler 1302 is fixedly installed at the bottom of the width detection frame 13. The camera module 1301 is an existing device, which is used to shoot the woven bag body 5 and identify the width of the woven bag body 5 through the cooperation of the scale ruler 1302;

[0036] In the embodiment of the present invention, further, reference is made to Figure 7-Figure 9The inner part of the machine body 1 is connected to the limit slide plate 6 by sliding up and down. The bottom of the limit slide plate 6 is fixedly installed with an elastic pick 602. The elastic pick 602 is used to slide downward when the woven bag body 5 contacts the running detection roller 701, and to slide upward and reset in time when the elastic pick 602 touches the woven bag body 5, so that the woven bag body 5 is forced to stretch longitudinally. When the woven bag body 5 moves to contact the running detection roller 701, as the conveyor belt 3 runs, the woven bag body 5 can be transported in the direction away from the limit slide plate 6. At this time, as the elastic pick 602 moves downward, the woven bag body 5 can be stretched longitudinally by force. The elastic pick 602 is deformed when it contacts the woven bag body 5, which can prevent the end of the woven bag body 5 that contacts the detection roller 701 from falling off due to excessive force, and then the elastic pick 602 can reciprocate until the woven bag body 5 completes the longitudinal stretching operation.

[0037] In the embodiment of the present invention, specifically, both sides of the interior of the body 1 are provided with slide grooves 101, the limiting slide plate 6 is slidably connected inside the slide grooves 101, a hydraulic cylinder 601 is fixedly installed on the inner top surface of the body 1, and the piston end of the hydraulic cylinder 601 is fixedly connected to the top surface of the limiting slide plate 6, so as to drive the limiting slide plate 6 and the elastic paddle 602 to slide up and down;

[0038] In the embodiment of the present invention, further, reference is made to Figure 8 , Fig. 9 Two transmission plate frames 16 are fixedly installed on the outer side of the limiting slide plate 6, and a plurality of outer dial plates 17 are obliquely installed at the bottom of the two transmission plate frames 16, and elastic end heads 1701 are fixedly installed at the ends of the outer dial plates 17. The elastic end heads 1701 can slide downward with the outer dial plates 17 until they contact the conveyed woven bag body 5 and then dial it to both sides, so that the woven bag body 5 can be stretched horizontally;

[0039] In the embodiment of the present invention, the outer shifting plates 17 on both sides are symmetrical to each other, and the outer sides of the two transmission plate frames 16 are fixedly connected with connecting frames 1601 and fixedly connected to the limiting slide plate 6 through the connecting frames 1601. The ends of the connecting frames 1601 are provided with a plurality of positioning holes 1602 for connection;

[0040] In the embodiment of the present invention, when the outer plate 17 moves downward, the elastic end 1701 can move downward at the same time until it contacts the woven bag body 5 and deforms. At this time, the outer plate 17 is installed obliquely, so that when the elastic end 1701 contacts the woven bag body 5, a pushing force to both sides is applied to the woven bag body 5 until the woven bag body 5 completes the lateral extension, thereby further improving the detection accuracy of the width of the woven bag body 5.

[0041] In the embodiment of the present invention, further, a plurality of heating rods 703 are fixedly installed inside the detection roller 701 for heating and shaping the conveyed woven bag body 5, a conductive component is provided at the end of the driving shaft 7, a servo motor 8 is fixedly installed on the outside of the machine body 1, and a coupling is provided between the piston end of the servo motor 8 and the end of the driving shaft 7. When the detection roller 701 is running to convey and detect the woven bag body 5, as the heating rod 703 is running, the detection roller 701 can be heated up, and the stretched woven bag body 5 can be shaped, which improves the detection accuracy on the one hand, and improves the convenience of subsequent processing of the woven bag body 5 at the same time;

[0042] In the embodiment of the present invention, specifically, the conductive component includes a conductive moving ring 14 and a conductive static ring 15, a fixed rod 1502 is fixedly connected between the conductive static ring 15 and the body 1, and a plurality of conductive slots 1501 are opened inside the conductive static ring 15, the conductive static ring 15 is connected to an external power supply, the conductive moving ring 14 is fixedly sleeved on the end of the driving shaft 7, a plurality of conductive ends 1401 are fixed on the outside of the conductive moving ring 14, and the plurality of conductive ends 1401 are respectively slidably connected inside the corresponding conductive slots 1501, the conductive ends 1401 are electrically connected to the plurality of heating rods 703 and the conductive sheet 4 through wires, and when the driving shaft 7 rotates, the conductive moving ring 14 and the conductive ends 1401 can be driven to rotate, so that the conductive ends 1401 can slide inside the conductive slots 1501 to maintain electrical connection;

[0043] In the embodiment of the present invention, further, a transmission shaft 11 is provided inside the body 1, and a lamination roller 1101 is fixedly sleeved on the outer side of the transmission shaft 11. The transmission shaft 11 is rotatably installed inside the body 1, and the ends of the transmission shaft 11 and the driving shaft 7 are fixedly sleeved with sprockets 12 and connected with a transmission chain 1201 through the sprocket 12. When the driving shaft 7 is running, the sprocket 12 and the transmission chain 1201 cooperate to drive the transmission shaft 11 and the lamination roller 1101 to rotate, thereby further realizing the lamination process of the woven bag body 5.

[0044] Embodiment 2: Based on Embodiment 1, on the basis of Embodiment 1, in the embodiment of the present invention, further, reference is made to Figure 2 , Figure 3A calibration component is provided inside the machine body 1 for marking unqualified products. The calibration component includes a fixed plate 9, which is fixedly installed inside the machine body 1. A telescopic cylinder 10 is fixedly installed inside the fixed plate 9, and a marking end 1001 is fixedly installed on the piston end of the telescopic cylinder 10; the marking end 1001 is hollow inside and ink is stored inside, a sponge pad is fixedly installed at the bottom of the marking end 1001, and a plurality of micro holes for communication are provided between the sponge pad and the inside of the marking end 1001, the micro holes and the sponge pad are not shown in the figure, when a product with unqualified size is detected, as the telescopic cylinder 10 moves downward, the marking end 1001 can be driven to move downward until the marking end 1001 contacts the woven bag body 5, and the marking process is completed.

[0045] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0046] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A woven bag length and width detection device, comprising a body (1), a protective cover (2) fixed to the outside of the body (1), and a control module (201) installed on the outside of the protective cover (2), characterized in that: A conveyor belt (3) is rotatably connected inside the machine body (1), and a woven bag body (5) is conveyed above the conveyor belt (3); A driving shaft (7) is rotatably connected inside the machine body (1), a detection roller (701) is fixedly sleeved on the outside of the driving shaft (7), a conductive ring (702) is fixedly sleeved on the outside of the detection roller (701), a conductive sheet (4) adapted to the conductive ring (702) is fixedly installed at the middle position of the outside of the conveyor belt (3), a series circuit is formed between the conductive sheet (4), the conductive ring (702) and the control module (201), the circuit is disconnected when the woven bag body (5) moves between the conductive sheet (4) and the conductive ring (702) as the conveyor belt (3), and the number of rotations of the driving shaft (7) when the circuit is disconnected is recorded, thereby obtaining the length of the woven bag body (5); A width detection frame (13) is fixed inside the machine body (1), a camera module (1301) is fixed inside the width detection frame (13), the camera module (1301) is used to photograph and identify the width of the woven bag body (5), and a scale ruler (1302) is fixedly installed at the bottom of the width detection frame (13).

2. A woven bag length and width detection device according to claim 1, characterized in that: The interior of the machine body (1) is connected to a limit slide plate (6) in a sliding manner up and down, and an elastic pick (602) is fixedly installed at the bottom of the limit slide plate (6). The elastic pick (602) is used to slide downward when the woven bag body (5) contacts the running detection pressure roller (701), and to slide upward and reset in time when the elastic pick (602) touches the woven bag body (5), so as to force the woven bag body (5) to stretch longitudinally.

3. A woven bag length and width detection device according to claim 2, characterized in that: Slide grooves (101) are provided on both sides of the interior of the machine body (1), the limit slide plate (6) is slidably connected inside the slide grooves (101), a hydraulic cylinder (601) is fixedly mounted on the inner top surface of the machine body (1), and a piston end of the hydraulic cylinder (601) is fixedly connected to the top surface of the limit slide plate (6).

4. A woven bag length and width detection device according to claim 2, characterized in that: Two transmission plate frames (16) are fixedly mounted on the outer side of the limiting slide plate (6); a plurality of outer shifting plates (17) are obliquely mounted on the bottom of the two transmission plate frames (16); and elastic end heads (1701) are fixedly mounted on the ends of the outer shifting plates (17); the elastic end heads (1701) can slide downward along with the outer shifting plates (17) until they come into contact with the conveyed woven bag body (5) and shift it to both sides, so that the woven bag body (5) can be stretched laterally.

5. A woven bag length and width detection device according to claim 4, characterized in that: The outer shifting plates (17) on both sides are symmetrical to each other, and the outer sides of the two transmission plate frames (16) are fixedly connected to the connecting frames (1601) and are fixedly connected to the limiting slide plate (6) through the connecting frames (1601), and the ends of the connecting frames (1601) are provided with a plurality of positioning holes (1602) for connection.

6. A woven bag length and width detection device according to claim 1, characterized in that: A plurality of heating rods (703) are fixedly mounted inside the detection roller (701) for heating and shaping the transported woven bag body (5); a conductive component is provided at the end of the drive shaft (7); a servo motor (8) is fixedly mounted on the outside of the machine body (1); and a coupling is provided between the piston end of the servo motor (8) and the end of the drive shaft (7).

7. A woven bag length and width detection device according to claim 6, characterized in that: The conductive component comprises a conductive moving ring (14) and a conductive static ring (15); a fixing rod (1502) is fixedly connected between the conductive static ring (15) and the body (1); a plurality of conductive slots (1501) are provided inside the conductive static ring (15); the conductive static ring (15) is connected to an external power source; the conductive moving ring (14) is fixedly sleeved on the end of the driving shaft (7); a plurality of conductive ends (1401) are fixedly provided outside the conductive moving ring (14); the plurality of conductive ends (1401) are respectively slidably connected inside corresponding conductive slots (1501); and the conductive ends (1401) are electrically connected to the plurality of heating rods (703) and the conductive sheet (4) via wires.

8. A woven bag length and width detection device according to claim 1, characterized in that: A transmission shaft (11) is provided inside the machine body (1), a pressing roller (1101) is fixedly sleeved on the outer side of the transmission shaft (11), the transmission shaft (11) is rotatably mounted inside the machine body (1), and sprockets (12) are fixedly sleeved on the ends of the transmission shaft (11) and the drive shaft (7), and a transmission chain (1201) is connected via the sprockets (12).

9. A woven bag length and width detection device according to claim 1, characterized in that: The body (1) is provided with a calibration component inside for marking unqualified products, the calibration component comprising a fixing plate (9), the fixing plate (9) being fixedly mounted inside the body (1), a telescopic cylinder (10) being fixedly mounted inside the fixing plate (9), and a marking end (1001) being fixedly mounted on a piston end of the telescopic cylinder (10).

10. A woven bag length and width detection device according to claim 9, characterized in that: The marking end (1001) is hollow inside and stores ink therein; a sponge pad is fixedly mounted on the bottom of the marking end (1001), and a plurality of micro holes for communication are provided between the sponge pad and the inside of the marking end (1001).

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