A telescopic straw detection device

Abstract

The invention discloses a telescopic straw detection device, comprising a straw, wherein a plurality of the straws are arranged in sequence to form a straw belt, comprising a power control cabinet, a main mounting plate connected below the power control cabinet, a transmission assembly connected to one side of the main mounting plate, and a detection mechanism installed in the transmission assembly; the structure comprises a combination of the transmission assembly and the detection mechanism, so that after the detection, the straws can be automatically flowed into the next process through the transmission mechanism, thereby saving labor costs and reducing labor intensity; through the diameter difference between the inner tube and the outer tube of the telescopic straw through the lever amplification principle, automatic detection of inner tube shortage, outer tube shortage, empty membrane and the like can be simply and effectively realized, thereby saving manpower and greatly improving product quality.

Description

Technical Field

[0001] The invention relates to the technical field of telescopic straw production and testing equipment, and in particular to a telescopic straw testing device. Background Art

[0002] With the improvement of people's living conditions, convenient drinking beverages have become an indispensable drink in life, and the demand for its production capacity is also increasing. The drinking straws pasted on the outer packaging of beverages have also increased with the market demand. With the launch of various mid-to-high-end beverages, most of the original conventional U-shaped straws have been replaced with more high-end retractable straws. That is, the production capacity demand of stretchable straws has become very large, and its product quality is difficult to be effectively controlled. It has always relied on manual inspection to ensure product quality, which is labor-intensive and may not necessarily ensure absolute compliance. The composition of the stretchable straw: divided into an inner tube and an outer tube, two straws of different diameters are put together, one end of the inner tube is expanded, and one end of the outer tube is contracted, so that the expanded end of the inner tube and the contracted end of the outer tube are firmly matched together, and then the stretchable straw is produced. The main reason for unstable product quality is the lack of inner tubes or outer tubes during the production process. It is also easy to make mistakes when inspecting finished products. Most customers require both inner and outer tubes to be natural color straws, that is, translucent, and wrapped with a layer of packaging film. The distance between straws is only 15 mm, which is relatively dense. At present, manual visual inspection is caused by excessive production capacity, high product density, the inner tube is only 10 mm longer than the outer tube, the color is close to transparent, and there is a layer of transparent film wrapped, which causes visual fatigue to inspectors and leads to a large number of defective products. Summary of the invention

[0003] In view of the defects in the prior art, the present invention provides a telescopic straw detection device to improve the quality of the product, reduce the labor intensity and improve the production efficiency of the finished product.

[0004] The present invention provides a telescopic straw detection device, comprising a straw, a plurality of the straws are arranged in sequence to form a straw belt, and also comprising a power control cabinet, a main mounting plate connected below the power control cabinet, a transmission assembly connected to one side of the main mounting plate, and a detection mechanism installed in the transmission assembly; the power control cabinet is located on one side of the main mounting plate, and the transmission assembly comprises a first catch, a non-powered swing rod, a guide wheel device, the detection mechanism, a non-powered pressure wheel and a traction device which are arranged in sequence along the moving direction of the straw; the non-powered pressure wheel is arranged above the traction device and a gap is left therebetween to allow the straw belt to pass through, the back side of the straw belt passes around the non-powered swing rod and is laid on the guide wheel device, and then the straw belt passes through the detection mechanism and moves through the traction device and the non-powered pressure wheel, and a second catch is also connected below the traction device.

[0005] Preferably, the detection mechanism includes a splint, a lever flap, a connecting piece with an "L"-shaped cross-section and a feedback system; the splint includes a main bracket and two stepped templates that are buckled together, and a gap is left between the two templates to allow the straw to pass through, and a strip through hole is processed on one side of the bottom surface of the lower template, and two connecting pieces are connected to one side of the strip through hole, and the lever flaps are rotatably connected through the connecting pieces, one end of the lever flap is in contact with the straw through the strip through hole, and the other end of the lever flap is freely extended from the template; a spring is connected to the template corresponding to the tail position of the lever flap, and the extended end of the spring is in contact with the lever flap.

[0006] Preferably, the connecting member is connected to a small shaft, and the lever flap is sleeved on the small shaft so that the lever flap can rotate around the small shaft.

[0007] Preferably, the feedback system includes a photoelectric bracket, a first proximity switch and a second proximity switch connected to the photoelectric bracket; one end of the photoelectric bracket is connected to the main mounting plate, and the other end of the photoelectric bracket extends freely and is located below the lever flap, the first proximity switch and the second proximity switch are respectively located directly below the end of the lever flap, and the first proximity switch and the second proximity switch are electrically connected to the power control cabinet.

[0008] Preferably, the strip-shaped through hole accommodates the straw so that the straw is completely exposed as a whole, and the two lever flaps are in contact with the large-diameter end and the small-diameter end of the straw respectively.

[0009] Preferably, the lever flap includes a horizontal contact section and an "L"-shaped detection section in contact with the straw; the detection section is perpendicular to the contact section, and the small shaft is sleeved at the corner where the contact section and the detection section are connected.

[0010] Preferably, a PLC control system is provided inside the power control cabinet, and a touch display and an adjustment switch are installed on a side of the power control cabinet close to the main installation board, and the touch display and the adjustment switch are electrically connected to the PLC control system respectively.

[0011] Preferably, the traction device is connected to a motor on one end of the main mounting plate, the motor is located below the power control cabinet, and the motor drives the traction device to rotate.

[0012] Preferably, the traction device includes a rotating disk and a rotating shaft, the rotating shaft is connected to the output end of the motor, the rotating disk is connected to the rotating shaft, and a plurality of strip-shaped grooves are processed on a circle of the rotating disk, and the strip-shaped grooves cooperate with the straw.

[0013] Preferably, the unpowered swing arm and the unpowered pressure wheel are both roller structures, and the unpowered swing arm includes a "Z"-shaped rotating shaft; one end of the rotating shaft is installed on the main mounting plate and extends to the back of the main mounting plate, and the other end of the rotating shaft is perpendicular to the main mounting plate and extends freely, and a limit ring is installed on the end of the rotating shaft extending out of the back of the main mounting plate, and a third proximity switch is connected to the main mounting plate on one side of the limit ring, and a contact rod is connected to the limit ring. When the straws are insufficiently stored, the limit ring rotates so that the contact rod triggers the third proximity switch.

[0014] Preferably, the guide wheel device includes a fixed shaft and a guide wheel mounted outside the fixed shaft, the guide wheel rotates around the fixed shaft, one end of the fixed shaft is connected to the main mounting plate, and the other end of the fixed shaft extends freely.

[0015] The beneficial effects of the present invention are as follows: the present invention structurally includes a combination of a transmission assembly and a detection mechanism, so that after detection, the straw can automatically flow into the next process through the transmission mechanism, saving labor costs and reducing labor intensity. The diameter difference between the inner tube and the outer tube of the telescopic straw is magnified by the lever principle to simply and effectively realize automatic detection of missing inner tubes, missing outer tubes, empty membranes and the like, saving manpower while also greatly improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of the present invention when viewed from above;

[0019] Figure 3 It is a schematic diagram of the structure of the present invention;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the structure of the middle limit ring;

[0021] Figure 5 It is a schematic diagram of the overall structure of the detection mechanism of the present invention;

[0022] Figure 6 It is a schematic diagram of the rotation of the lever flap of the present invention.

[0023] In the accompanying drawings, there are a main mounting plate 1, a power control cabinet 2, a suction tube 3, a traction device 4, a splint 5, a lever flap 6, a first proximity switch 7, a second proximity switch 8, an unpowered pressure wheel 9, an unpowered swing rod 10, a touch display 11, an adjustment switch 12, a motor 13, a photoelectric bracket 14, a second gear claw 15, a first gear claw 16, a small shaft 17, a connecting piece 18, a spring 19, a third proximity switch 20, a limit ring 21, and a guide wheel device 22. DETAILED DESCRIPTION

[0024] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0025] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0026] like Figure 1-2As shown, a telescopic straw detection device includes a straw 3, a plurality of the straws 3 are arranged in sequence to form a straw 3 belt, and also includes a power control cabinet 2, a main mounting plate 1 connected below the power control cabinet 2, a transmission assembly connected to one side of the main mounting plate 1, and a detection mechanism installed in the transmission assembly; the power control cabinet 2 is located on one side of the main mounting plate 1, and the transmission assembly includes a first catch 16, a non-powered swing rod 10, a guide wheel device 22, a detection mechanism, a non-powered pressure wheel 9 and a traction device 4 which are arranged in sequence along the moving direction of the straw 3; the non-powered pressure wheel 9 is arranged above the traction device 4 and a gap is left therebetween to allow the straw 3 belt to pass through, the back side of the straw 3 belt passes around the non-powered swing rod 10 and is laid on the guide wheel device 22, then the straw 3 belt passes through the detection mechanism and moves through the traction device 4 and the non-powered pressure wheel 9, and a second catch 15 is also connected below the traction device 4. The first catch 16 is located at the leftmost side of the main mounting plate 1, and its function is to dock with the finished product traction wheel on the production host when connecting to the production host. The second catch is located at the lower right side of the traction device 4, and its function is to peel off the straw 3 stuck in the traction wheel groove on the traction device 4.

[0027] Preferably, if Figure 5 As shown, the detection mechanism includes a splint 5, a lever flap 6, a connecting member 18 with an "L"-shaped cross-section and a feedback system; the splint 5 includes a main bracket and two stepped templates that are buckled together, and a gap is left between the two templates to allow the straw 3 to pass through, and a strip through hole is processed on one side of the bottom surface of the lower template, and two connecting members 18 are connected to one side of the strip through hole, and the lever flap 6 are respectively rotatably connected through the connecting members 18, one end of the lever flap 6 is in contact with the straw 3 through the strip through hole, and the other end of the lever flap 6 is freely extended from the template; a spring 19 is connected to the template corresponding to the tail position of the lever flap 6, and the extended end of the spring 19 is in contact with the lever flap 6.

[0028] Preferably, a small shaft 17 is connected to the connecting member 18 , and the lever flap 6 is sleeved on the small shaft 17 , so that the lever flap 6 can rotate around the small shaft 17 .

[0029] Preferably, the feedback system includes a photoelectric bracket 14, a first proximity switch 7 and a second proximity switch 8 connected to the photoelectric bracket 14; one end of the photoelectric bracket 14 is connected to the main mounting plate 1, and the other end of the photoelectric bracket 14 extends freely and is located below the lever flap 6, the first proximity switch 7 and the second proximity switch 8 are respectively located directly below the end of the lever flap 6, and the first proximity switch 7 and the second proximity switch 8 are electrically connected to the power control cabinet 2.

[0030] Preferably, the strip-shaped through hole accommodates the straw 3 so that the straw 3 is completely exposed as a whole, and the two lever flaps 6 are in contact with the large-diameter end and the small-diameter end of the straw 3 respectively.

[0031] Preferably, if Figure 6 As shown, the lever flap 6 includes a horizontal contact section and an "L"-shaped detection section in contact with the straw 3; the detection section is perpendicular to the contact section, and the small shaft 17 is sleeved at the corner where the contact section and the detection section are connected. The lever flap 6 magnifies the small diameter difference of the straw 3, making the detection more accurate.

[0032] Preferably, a PLC control system is provided inside the power control cabinet 2, and a touch display 11 and an adjustment switch 12 are installed on the side of the power control cabinet 2 close to the main installation board 1, and the touch display 11 and the adjustment switch 12 are electrically connected to the PLC control system respectively. The above-mentioned PLC control system is a commonly used and mature control system in the existing market technology.

[0033] Preferably, the traction device 4 is connected to a motor 13 at one end of the main mounting plate 1 , and the motor 13 is located below the power control cabinet 2 , and the motor 13 drives the traction device 4 to rotate.

[0034] Preferably, the traction device 4 includes a rotating disk and a rotating shaft, the rotating shaft is connected to the output end of the motor 13, the rotating disk is connected to the rotating shaft, and a plurality of strip-shaped grooves are processed on a circle of the rotating disk, and the strip-shaped grooves cooperate with the straw 3.

[0035] Preferably, if Figure 3-4As shown, the unpowered swing arm 10 and the unpowered pressure wheel 9 are both roller structures, and the unpowered swing arm 10 includes a "Z"-shaped rotating shaft; one end of the rotating shaft is installed on the main mounting plate 1 and extends to the back of the main mounting plate 1, and the other end of the rotating shaft is perpendicular to the main mounting plate 1 and extends freely, and a limit ring 21 is installed on the end of the rotating shaft extending out of the back of the main mounting plate 1, and a third proximity switch 20 is connected to the main mounting plate 1 on one side of the limit ring 21, and a contact rod is connected to the limit ring 21. When the straw 3 is insufficiently stored, the limit ring 21 rotates so that the contact rod triggers the third proximity switch 20. The embodiment of the contact rod is a set screw; the unpowered swing rod 10 is located on the left side of the guide wheel device 22, and its function is: when the straws 3 to be inspected are insufficient, the traction device 4 pulls the straws 3 with force, and the straws 3 will drive the unpowered swing rod 10 and the limit ring 21 installed at the tail of the unpowered swing rod 10 to rotate, and the set screw on the limit ring 21 leaves the effective range of the proximity switch, so that the detection device suspends operation and waits for a certain amount of straws 3 to be inspected to be stored, and then automatically restarts operation. During this period, no manual operation is required, which improves the automation degree of the detection device and reduces labor intensity; the unpowered pressure wheel 9 is located on the upper left of the traction device 4, and is used to press the straw 3 into the groove of the traction wheel on the traction device 4 to prevent the straw 3 from slipping when being pulled.

[0036] Preferably, the guide wheel device 22 includes a fixed shaft and a guide wheel mounted outside the fixed shaft, the guide wheel rotates around the fixed shaft, one end of the fixed shaft is connected to the main mounting plate 1, and the other end of the fixed shaft is freely extended.

[0037] The following describes the effects of the embodiment constructed in the above manner:

[0038] The invention discloses a telescopic straw 3 detection device, comprising a straw 3, wherein a plurality of the straws 3 are sequentially arranged to form a straw 3 belt, and further comprising a power control cabinet 2, a main mounting plate 1 connected below the power control cabinet 2, a transmission assembly connected to one side of the main mounting plate 1, and a detection mechanism installed in the transmission assembly. Figure 1) as shown. Its working principle: relying on the diameter difference between the inner tube and the outer tube of the retractable straw 3 through the lever amplification principle, it realizes the automatic detection of the inner tube missing, the outer tube missing and the empty film and other phenomena in a simple and effective manner. The specific process is: an "L"-shaped connector 18 is installed under the pressure plate, and a small shaft 17 is fixed on the "L"-shaped connector 18. The lever flap 6 is flexibly installed on the small shaft 17 by means of a bearing. The upper right side of the lever flap 6 contacts the straw 3. The spring 19 at the tail is used to place the straw 3 on the upper side of the hollow hole of the splint 5 through the seesaw principle, so as to eliminate the gap between the straw 3 and the lever flap 6 and the top surface of the hollow hole of the splint 5. The change in the diameter of the straw 3 is used to amplify the swing distance of the tail of the lever flap 6 through the lever principle, and the distance between the proximity switch and the lever flap 6 is reduced. The proximity switch generates a signal to notify the PLC to judge whether the straw 3 is qualified.

[0039] like Figure 5 An embodiment is shown: when the solid-line lever flap 6 encounters a normal and qualified straw 3, the distance between the second proximity switch 8 and the lever flap 6 is 6 mm, while when the dotted-line lever flap 6 encounters a situation where the outer tube is missing or there is no straw 3, the distance between the second proximity switch 8 and the lever flap 6 is only 1.5 mm. At this time, the second proximity switch 8 will be turned on and notify the PLC to shut down the machine. Because the difference in outer diameters between the inner tube and the outer tube of the stretchable straw 3 is basically more than 1.5 mm, there will be two phenomena: the tail of the lever flap 6 will change by 4.5 mm.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A telescopic straw detection device, comprising a straw, and a straw belt composed of a plurality of the straws arranged in sequence, characterized in that: It comprises a power control cabinet, a main mounting plate connected below the power control cabinet, a transmission assembly connected on one side of the main mounting plate, and a detection mechanism installed in the transmission assembly; the power control cabinet is located on one side of the main mounting plate, and the transmission assembly comprises a first stopper, a non-powered swing rod, a guide wheel device, the detection mechanism, a non-powered pressure wheel, and a traction device which are sequentially arranged along the moving direction of the straw; the non-powered pressure wheel is arranged above the traction device and a gap is left between the two to allow the straw belt to pass through, the back side of the straw belt passes around the non-powered swing rod and is laid on the guide wheel device, and then the straw belt passes through the detection mechanism and moves through the traction device and the non-powered pressure wheel, and a second stopper is also connected below the traction device; The detection mechanism includes a clamping plate, a lever flap, a connecting piece with an "L"-shaped cross section and a feedback system; the clamping plate includes a main bracket and two stepped templates that are buckled together, a gap is left between the two templates to allow the straw to pass through, a strip through hole is processed on one side of the bottom surface of the template located below, two connecting pieces are connected on one side of the strip through hole, and the lever flaps are respectively rotatably connected through the connecting pieces, one end of the lever flap contacts the straw through the strip through hole, and the other end of the lever flap freely extends out of the template; a spring is connected to the template corresponding to the tail position of the lever flap, and the extended end of the spring contacts the lever flap; the strip through hole accommodates the straw to be completely exposed as a whole, and the two lever flaps are respectively in contact with the large diameter end and the small diameter end of the straw; The feedback system includes a photoelectric support, a first proximity switch and a second proximity switch connected to the photoelectric support; One end of the photoelectric bracket is connected to the main mounting plate, and the other end of the photoelectric bracket is freely extended and located below the lever flap, the first proximity switch and the second proximity switch are respectively located directly below the end of the lever flap, and the first proximity switch and the second proximity switch are electrically connected to the power control cabinet; A PLC control system is provided inside the power control cabinet, and a touch display and an adjustment switch are installed on one side of the power control cabinet close to the main installation board. The touch display and the adjustment switch are electrically connected to the PLC control system respectively.

2. A telescopic straw detection device according to claim 1, characterized in that: The connecting member is connected with a small shaft, and the lever flap is sleeved on the small shaft so that the lever flap rotates around the small shaft.

3. The telescopic straw detection device according to claim 1, characterized in that: The traction device is connected to a motor at one end of the main mounting plate. The motor is located below the power control cabinet and drives the traction device to rotate.

4. A telescopic straw detection device according to claim 3, characterized in that: The traction device comprises a rotating disk and a rotating shaft, wherein the rotating shaft is connected to the output end of the motor, the rotating disk is connected to the rotating shaft, and a plurality of strip-shaped grooves are processed on a circle of the rotating disk, and the strip-shaped grooves cooperate with the straw.

5. The telescopic straw detection device according to claim 1, characterized in that: The unpowered swing rod and the unpowered pressure wheel are both roller structures, and the unpowered swing rod includes a "Z"-shaped rotating shaft; One end of the rotating shaft is installed on the main mounting plate and extends to the back of the main mounting plate, and the other end of the rotating shaft is perpendicular to the main mounting plate and extends freely. A limit ring is installed on the end of the rotating shaft extending out of the back of the main mounting plate. A third proximity switch is connected to the main mounting plate on one side of the limit ring, and a contact rod is connected to the limit ring. When the straws are insufficiently stored, the limit ring rotates so that the contact rod triggers the third proximity switch.

6. The telescopic straw detection device according to claim 1, characterized in that: The guide wheel device comprises a fixed shaft and a guide wheel sleeved outside the fixed shaft, the guide wheel rotates around the fixed shaft, one end of the fixed shaft is connected to the main mounting plate, and the other end of the fixed shaft is freely extended.

7. A telescopic straw detection device according to claim 2, characterized in that: The lever flap includes a horizontal contact section and an "L"-shaped detection section in contact with the straw; the detection section is perpendicular to the contact section, and the small shaft is sleeved at the corner where the contact section and the detection section are connected.

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