Visual detection device for milk tea cup cover

Abstract

The invention discloses a visual detection device for milk tea cup covers, and relates to the technical field of milk tea cup cover detection. The milk tea cup detection device comprises a supporting frame arranged on a detection support and a plurality of milk tea cups, each milk tea cup is provided with a milk tea cover, and the milk tea cup detection device further comprises a conveying unit which comprises a conveying assembly and a positioning assembly; the photoelectric detection unit comprises a photoelectric detection assembly and a removing assembly; and the pressing unit comprises a lifting assembly and an extrusion assembly, and a cover pressing disc used for compacting the milk tea cover is arranged in the lifting assembly. The device has the advantages that effective photoelectric and visual detection can be conducted on milk tea cups in the milk tea cup conveying process, whether milk tea cup covers fall or not can be accurately judged, the falling milk tea cup covers can be rapidly removed, meanwhile, whether the milk tea cup covers are tightly clamped or not can be judged, and the milk tea cup covers can be conveniently and rapidly removed. And tight pressing of the milk tea cup cover can be achieved on the premise that conveying is not affected, the detection effect is better, and functionality is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of milk tea cup lid detection, and particularly relates to a visual detection device for milk tea cup lids. Background Art

[0002] A milk tea cup is a container for storing solid milk tea beverages, mainly composed of a milk tea cup body, milk tea materials arranged in the milk tea cup body, and a milk tea lid. When the milk tea cup is processed in the workshop, a visual detection device is usually used to detect the milk tea cup to determine whether the milk tea lid on the milk tea cup has fallen off;

[0003] Existing visual detection devices use various methods to detect milk tea cups. For example, a cup lid product detection system with the publication number CN114871146B includes: a cup lid continuous conveyor, including a first conveyor belt; the working surface of the first conveyor belt is composed of at least two unit belts spaced apart; a first cup lid photographing assembly is arranged above the cup lid continuous conveyor; a second cup lid photographing assembly is arranged below the first conveyor belt; a third cup lid photographing assembly is arranged above the first conveyor belt; a backlight member is arranged below the first conveyor belt;

[0004] Existing detection devices usually perform visual detection of milk tea cups during the transportation process. This method can only detect whether the milk tea lid on the milk tea cup has fallen off, but cannot remove the milk tea lid that has fallen onto the conveyor belt. The milk tea lid still travels on the conveyor belt together with the milk tea cup. For example, in the above-mentioned prior art for reference, this device can only determine the existence of the cup lid by using the photographing detection method, but cannot remove the milk tea cup that has fallen onto the conveyor belt. At the same time, this device cannot determine whether the milk tea cup and the milk tea lid are tightly pressed, and cannot achieve secondary pressing of the milk tea lid with insufficient pressing, which has certain limitations;

[0005] Therefore, it is urgent to design a visual detection device for milk tea cup lids to solve the above problems. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a visual detection device for milk tea cup lids, which solves the problems raised in the above background art.

[0007] To achieve the above objectives, the present invention is realized through the following technical solutions: A visual detection device for milk tea cup lids includes a support frame arranged on a detection support and a plurality of milk tea cups, and a milk tea lid is arranged on each milk tea cup. The device further includes:

[0008] A conveying unit, arranged on the detection support, includes a conveying component and a positioning component. Among them, a conveyor belt for conveying milk tea cups is arranged on the conveying component, and a plurality of positioning components are arranged on the conveyor belt to realize the positioning of milk tea cups;

[0009] The photoelectric detection unit is arranged on the support frame and includes a photoelectric detection component and a rejection component. The photoelectric detection component is provided with a first photoelectric sensor and a second photoelectric sensor for visually detecting the milk tea cup and the positioning component. The rejection component is based on the photoelectric detection component and is used to reject the dropped milk tea lids.

[0010] The pressing unit is arranged on the support frame and includes a lifting component and a pressing component. The lifting component is provided with a capping plate for pressing the milk tea lid, and the pressing component cooperates with the lifting component to realize the pressing and limiting of the milk tea cup.

[0011] Preferably, a control console is arranged on the detection support frame. The control console is used to control the opening, closing and operating states of the conveying unit, the photoelectric detection unit and the pressing unit to realize the automatic visual detection of the milk tea cup.

[0012] Preferably, the conveying component includes a servo motor arranged on the detection support frame. A driving roller and a driven roller are rotatably installed on the support frame, and a conveyor belt is sleeved between the driving roller and the driven roller. A driving roller is fixedly installed on the driving end of the servo motor, and a transmission belt is sleeved between the driving roller and the driving roller.

[0013] Preferably, the positioning component includes a positioning box arranged on the conveyor belt. A positioning module is slidably installed in the positioning box, and the milk tea cup is snap-fitted in the positioning module. A plurality of return springs for resetting the positioning module are fixedly installed between the front and rear sides of the positioning module and the inner wall of the positioning box.

[0014] Preferably, the photoelectric detection component includes a mounting frame fixedly installed on the support frame. Two mounting plates are respectively fixedly installed on both sides of the mounting frame, and the two mounting plates are respectively located on both sides of the conveyor belt. The first photoelectric sensor and the second photoelectric sensor are fixedly installed on the right mounting plate. The first photoelectric sensor is used to detect whether the milk tea cup exists, and the second photoelectric sensor is used to detect whether there is an object on the conveyor belt. A photoelectric reflector cooperating with the first photoelectric sensor and the second photoelectric sensor is fixedly installed on the left mounting plate;

[0015] An output rejection solenoid valve cooperating with the first photoelectric sensor and the second photoelectric sensor is fixedly installed on the mounting frame, and an alarm lamp cooperating with the output rejection solenoid valve is arranged on the mounting frame.

[0016] Preferably, the rejection component includes a blower fixedly installed on the detection support frame. An air outlet pipe is arranged on the air outlet end of the blower. A guide air pipe is fixedly communicated with the air outlet pipe, and a control valve is arranged on the guide air pipe. The control valve cooperates with the output rejection solenoid valve, and a rejection air nozzle for rejecting the dropped milk tea lids is fixedly communicated with the guide air pipe;

[0017] The support frame is provided with a removal opening for removing the milk tea lid, and a storage box is arranged on the support frame and is matched with the removal opening.

[0018] Preferably, a dust removal air duct is fixedly communicated with the air guide duct, a control valve is arranged on the dust removal air duct, and a dust removal air hood for blowing and removing dust from the milk tea cup is fixedly communicated with the dust removal air duct.

[0019] Preferably, the lifting assembly includes a vertical frame fixedly installed on the support frame, a hydraulic push rod is fixedly installed on the vertical frame, a sleeved cover is fixedly installed on the driving end of the hydraulic push rod, a vision sensor for detecting the clamping tightness density between the milk tea cup and the milk tea lid is fixedly installed on the right installation plate, and the vision sensor is matched with the hydraulic push rod.

[0020] Preferably, the extrusion assembly includes a compression spring rod fixedly installed in the sleeved cover, a pressing cover plate for pressing the milk tea lid is fixedly installed at the lower part of the compression spring rod, a liquid storage box is fixedly installed in the sleeved cover, and a limiting mechanism for limiting the milk tea cup is installed between the liquid storage box and the pressing cover plate.

[0021] Preferably, the limiting mechanism includes a liquid storage ring pipe fixedly installed in the sleeved cover, hydraulic oil is filled in the liquid storage ring pipe, a plurality of piston telescopic rods for conducting hydraulic oil are fixedly communicated with the liquid storage ring pipe, a limiting arc plate is fixedly installed on each piston telescopic rod, and two contraction springs are fixedly installed between each limiting arc plate and the liquid storage ring pipe;

[0022] A lifting pressure plate is slidably installed in the liquid storage box, hydraulic oil is filled between the lifting pressure plates in the liquid storage box, a pushing frame is fixedly installed between the lifting pressure plate and the pressing cover plate, a liquid guide pipe for conducting hydraulic oil is fixedly communicated between the liquid storage box and the liquid storage ring pipe, the liquid inlet end of the liquid guide pipe is located above the lifting pressure plate, and the liquid guide pipe is slidably connected with the lifting pressure plate.

[0023] The present invention provides a vision detection device for milk tea cup lids. It has the following beneficial effects:

[0024] 1. When the vision detection device detects the milk tea cup lid, during the conveying process of the milk tea cup, it judges whether the milk tea cup exists through the photoelectric sensor one, and judges whether there is an object on the conveyor belt through the photoelectric sensor two. If the photoelectric sensor one cannot detect the object at the same time, it can be judged that the milk tea cup lid has fallen on the conveyor belt, and the detection efficiency is relatively high.

[0025] 2. When the visual inspection device detects the milk tea cup lid, if the photoelectric sensor two at the lower part detects an object while the photoelectric sensor one does not, it is determined that the milk tea cup lid has fallen. At this time, the output rejection solenoid valve will control the rejection nozzle to start automatically, blow and reject the fallen milk tea cup lid, and at the same time, the output alarm light will give a warning to inform the operator, so that the fallen milk tea cup lid can be detected and synchronously rejected during the conveying process.

[0026] 3. When the visual inspection device detects the milk tea cup lid, it can perform an external visual inspection on the milk tea cup through the cooperation of the visual sensor during the conveying process of the milk tea cup, so as to quickly judge whether the milk tea cup and the milk tea lid are tightly engaged, and the detection range is wider.

[0027] 4. When the visual inspection device detects the milk tea cup lid, when it detects that the milk tea cup and the milk tea lid are not tightly engaged, the milk tea lid can be quickly pressed onto the milk tea cup through the cooperation of the pressing unit, so that the milk tea lid and the milk tea cup are tightly pressed. Moreover, this pressing operation can achieve automatic pressing during the conveying process of the milk tea cup without adjusting the position of the milk tea cup, and will not affect the normal conveying of the milk tea cup.

[0028] In summary, the present invention can effectively perform photoelectric and visual inspections on the milk tea cup during its conveying process, accurately judge whether the milk tea cup lid has fallen, quickly reject the fallen milk tea cup lid, simultaneously judge whether the milk tea cup lid is tightly engaged, and achieve the tight pressing of the milk tea cup lid without affecting the conveying, with better detection effect and stronger functionality.

[0029] Other features and advantages of the present invention will be described in the subsequent specification, and some of them will become obvious from the specification or be understood by implementing the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the structures specifically pointed out in the written specification and the drawings. Brief Description of the Drawings

[0030] The following further describes in detail the specific implementation manners of the present invention with reference to the drawings, where:

[0031] Figure 1 is a schematic structural diagram of a visual inspection device for milk tea cup lids proposed by the present invention;

[0032] Figure 2 is Figure 1 a schematic structural diagram after rotating a certain angle;

[0033] Figure 3 is Figure 1 a schematic structural diagram after removing the detection bracket;

[0034] Figure 4 is Figure 3Schematic diagram of the structure after removing part of the support frame;

[0035] Figure 5 Schematic diagram of the structure of the photoelectric detection component in the present invention;

[0036] Figure 6 Schematic diagram of the structure of the blowing component in the present invention;

[0037] Figure 7 is Figure 3 Schematic diagram of the structure of the support frame and the vertical frame in

[0038] Figure 8 is Figure 7 Schematic diagram of the structure of the positioning box in

[0039] Figure 9 is Figure 8 Schematic diagram of the structure after removing the milk tea cup;

[0040] Figure 10 is Figure 7 Schematic diagram of the upper part of the vertical frame in

[0041] Figure 11 is Figure 10 Schematic diagram of the structure after the sleeved cover rotates by a certain angle in

[0042] Figure 12 is Figure 11 Schematic diagram of the internal structure of the sleeved cover in

[0043] Figure 13 is Figure 12 Front view of

[0044] Figure 14 is Figure 12 Schematic diagram of the internal structure of the liquid storage ring pipe and the liquid storage box in

[0045] Figure 15 is Figure 14 Front view of the internal structure of the liquid storage box in

[0046] In the figure: 1 detection bracket, 2 control console, 3 servo motor, 4 support frame, 5 conveyor belt, 6 milk tea cup, 7 storage box, 8 fan, 9 alarm light, 10 vertical frame, 11 mounting frame, 12 output rejection solenoid valve, 13 drive belt, 14 photoelectric reflector, 15 milk tea lid, 16 rejection opening, 17 rejection nozzle, 18 dust removal air hood, 19 photoelectric sensor 1, 20 photoelectric sensor 2, 21 vision sensor, 22 air outlet pipe, 23 dust removal air pipe, 24 control valve, 25 hydraulic push rod, 26 positioning box, 27 positioning module, 28 return spring, 29 sleeved cover, 30 liquid storage ring pipe, 31 gland plate, 32 limiting arc plate, 33 compression spring rod, 34 liquid storage box, 35 liquid guide pipe, 36 push frame, 37 piston expansion rod, 38 lifting pressure plate. Specific Embodiments

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0048] Embodiment 1: Refer to Figure 1 - Figure 2 , a visual inspection device for milk tea cup lids, including a support frame 4 arranged on a detection support 1 and a plurality of milk tea cups 6, and a milk tea lid 15 is arranged on each milk tea cup 6;

[0049] In the normal state, the milk tea cup 6 and the milk tea lid 15 are tightly pressed together. If the milk tea cup 6 is not tightly pressed against the milk tea lid 15, the height of the misaligned milk tea lid 15 will be higher than the height of the normal milk tea lid 15. Therefore, it is possible to directly determine whether the milk tea lid 15 is tightly pressed by judging the height of the milk tea lid 15.

[0050] This detection device further includes:

[0051] A conveying unit, arranged on the detection support 1, and the conveying unit is used to stably convey the milk tea cup 6;

[0052] An optoelectronic detection unit, arranged on the support frame 4, and the optoelectronic detection unit is used to detect the milk tea cup 6 and the dropped milk tea lid 15 during the conveying process, and automatically remove the dropped milk tea lid 15;

[0053] A pressing unit, arranged on the support frame 4, for detecting the clamping tightness between the milk tea cup 6 and the milk tea lid 15, and tightly clamping the milk tea lid 15 that is not tightly clamped;

[0054] A control console 2 is arranged on the detection support 1, and the control console 2 is used to control the opening, closing and operating states of the conveying unit, the optoelectronic detection unit, and the pressing unit, so as to realize the automatic visual inspection of the milk tea cup 6.

[0055] Embodiment 2: Refer to Figure 2 - Figure 4 and Figure 8 - Figure 9 , the difference technical solution of this embodiment compared with Embodiment 1 is that: the conveying unit includes a conveying component and a positioning component, wherein a conveyor belt 5 for conveying the milk tea cup 6 is arranged on the conveying component, and a plurality of positioning components are arranged on the conveyor belt 5 for positioning the milk tea cup 6;

[0056] The conveying component includes a servo motor 3 arranged on the detection support 1, a driving roller and a driven roller are rotatably installed on the support frame 4, and the conveyor belt 5 is sleeved between the driving roller and the driven roller. A driving roller is fixedly installed on the driving end of the servo motor 3, and a transmission belt 13 is sleeved between the driving roller and the driving roller;

[0057] The servo motor 3 starts to drive the driving roller to rotate. The rotation of the driving roller drives the driving roller to rotate under the cooperation of the transmission belt 13. The rotation of the driving roller can drive the conveyor belt 5 to transmit under the cooperation of the driven roller, so as to realize the automatic conveying of the milk tea cup 6.

[0058] In a further embodiment, the positioning assembly includes a positioning box 26 arranged on the conveyor belt 5. A positioning module 27 is slidably installed in the positioning box 26, and the milk tea cup 6 is snap-fitted in the positioning module 27;

[0059] The positioning module 27 is used to snap-fit and position the milk tea cup 6, improve the stability of the conveying of the milk tea cup 6, and prevent it from shaking during conveying;

[0060] A plurality of return springs 28 for resetting the positioning module 27 are fixedly installed between the front and rear sides of the positioning module 27 and the inner wall of the positioning box 26. The positioning module 27 can slide back and forth in the positioning box 26 and automatically reset through the reset action of the return spring 28 after sliding, so as to realize the adjustment of the position of the milk tea cup 6 without affecting the conveying state of the milk tea cup 6, thus facilitating the subsequent pressing operation.

[0061] Embodiment Three: Refer to Figure 2 - Figure 6 , the different technical solutions of this embodiment compared with Embodiment Two are: the photoelectric detection unit includes a photoelectric detection component and a rejection component. Among them, a photoelectric sensor one 19 and a photoelectric sensor two 20 for visually detecting the milk tea cup 6 and the positioning component are arranged in the photoelectric detection component. The rejection component is based on the photoelectric detection component and is used to reject the dropped milk tea lid 15;

[0062] The photoelectric detection component includes a mounting bracket 11 fixedly installed on the support frame 4. Two mounting plates are respectively fixedly installed on both sides of the mounting bracket 11, and the two mounting plates are respectively located on both sides of the conveyor belt 5. The photoelectric sensor one 19 and the photoelectric sensor two 20 are fixedly installed on the right mounting plate;

[0063] The photoelectric sensor one 19 is used to detect whether the milk tea cup 6 exists. The photoelectric sensor two 20 is used to detect whether there are items on the conveyor belt 5. A photoelectric reflector 14 cooperating with the photoelectric sensor one 19 and the photoelectric sensor two 20 is fixedly installed on the left mounting plate. The photoelectric reflector 14 is used to reflect and block the photoelectric signals emitted by the photoelectric sensor one 19 and the photoelectric sensor two 20;

[0064] When the milk tea cup 6 is being normally conveyed and passes through the first photoelectric sensor 19 and the second photoelectric sensor 20, the first photoelectric sensor 19 will conduct a photovisual inspection on the milk tea cup 6. When the milk tea cup 6 passes through the first photoelectric sensor 19, the photoelectric signal emitted by the first photoelectric sensor 19 is blocked by the milk tea cup 6 and not received by the photoelectric reflector 14, which is determined that the milk tea cup 6 has passed at this time. When the milk tea cup 6 does not pass, the photoelectric signal emitted by the first photoelectric sensor 19 will be normally received by the photoelectric reflector 14;

[0065] The second photoelectric sensor 20 is arranged below the conveyor belt 5 and is used to detect the objects on the conveyor belt 5. When the milk tea cup 6 is normally conveyed through the second photoelectric sensor 20, the photoelectric signal emitted by the second photoelectric sensor 20 is blocked by the positioning box 26 at the lower part of the milk tea cup 6 and not received by the photoelectric reflector 14, which is determined that the milk tea cup 6 has passed normally at this time;

[0066] That is, when the first photoelectric sensor 19 and the second photoelectric sensor 20 detect the object at the same time, it is determined that the milk tea cup 6 has passed normally.

[0067] If the second photoelectric sensor 20 detects an object, but the first photoelectric sensor 19 does not detect an object within 30 milliseconds, it is determined that there is no milk tea cup 6 passing at this time, and then it is determined that the object passing through the second photoelectric sensor 20 is not the positioning box 26 but the milk tea lid 15, that is, it is determined that the milk tea lid 15 has fallen.

[0068] In a further embodiment, an output rejection solenoid valve 12 that cooperates with the first photoelectric sensor 19 and the second photoelectric sensor 20 is fixedly installed on the mounting frame 11, and an alarm lamp 9 that cooperates with the output rejection solenoid valve 12 is arranged on the mounting frame 11;

[0069] If it is determined that the milk tea lid 15 has fallen, at this time, the second photoelectric sensor 20 transmits an electrical signal to the output rejection solenoid valve 12, and the output rejection solenoid valve 12 controls the alarm lamp 9 to start and emit an alarm to remind the operator to pay attention. The alarm lamp 9 automatically stops after 10 seconds of alarm.

[0070] The rejection assembly includes a blower 8 fixedly installed on the detection bracket 1. An air outlet pipe 22 is arranged at the air outlet end of the blower 8. A duct is fixedly connected to the air outlet pipe 22. A control valve 24 is arranged on the duct, and the control valve 24 cooperates with the output rejection solenoid valve 12. A rejection nozzle 17 for rejecting the fallen milk tea lid 15 is fixedly connected to the duct;

[0071] The output rejection solenoid valve 12 will control the blower 8 and the control valve 24 on the duct to start. When the blower 8 starts, it generates an air flow, and the air flow is sprayed out through the air outlet pipe 22, the duct and then through the rejection nozzle 17.

[0072] The support frame 4 is provided with a removal opening 16 for removing the milk tea lid 15, and a storage box 7 is arranged on the support frame 4 and is matched with the removal opening 16. When the removal air nozzle 17 ejects air flow, at this time, the milk tea lid 15 detected by the photoelectric sensor two 20 just reaches the horizontal position of the removal air nozzle 17 on the conveyor belt 5. The air flow ejected by the removal air nozzle 17 will blow the milk tea lid 15 horizontally so that it falls into the storage box 7 through the removal opening 16, completing the automatic detection determination and automatic removal of the dropped milk tea lid 15.

[0073] In a further embodiment, an ash removal air duct 23 is fixedly communicated with the air duct, and a control valve 24 is arranged on the ash removal air duct 23. An ash removal air hood 18 for blowing and removing ash from the milk tea cup 6 is fixedly communicated with the ash removal air duct 23;

[0074] When the fan 8 is in a normal state, it will work normally and generate air flow. The air flow will be conducted to the ash removal air duct 23 through the air duct and blown to the conveyor belt 5 through the ash removal air hood 18. When the milk tea cup 6 is conveyed and passes through the ash removal air hood 18, the air flow blown out by the ash removal air hood 18 will blow off the dust on the milk tea cup 6, realizing the automatic dust removal of the milk tea cup 6;

[0075] When the ash removal air hood 18 blows air, the control valve 24 on the air duct is in a closed state at this time, that is, the removal air nozzle 17 does not blow air at this time. When the removal air nozzle 17 blows air, the control valve 24 on the ash removal air duct 23 is in a closed state, that is, the ash removal air hood 18 does not blow air, so that all the air flow generated by the fan 8 is blown out through the removal air nozzle 17, thereby increasing the air flow intensity ejected by the removal air nozzle 17 and making it easier to remove the milk tea lid 15 dropped on the conveyor belt 5.

[0076] Embodiment Four: Refer to Figure 1 、 Figure 7 and Figure 10 - Figure 15 This embodiment is different from Embodiment Three in the technical solution: The pressing unit includes a lifting component and a pressing component. Among them, a lid pressing disc 31 for pressing the milk tea lid 15 is arranged in the lifting component, and the pressing component is matched with the lifting component to realize the pressing and limiting of the milk tea cup 6;

[0077] The lifting component includes a vertical frame 10 fixedly installed on the support frame 4. A hydraulic push rod 25 is fixedly installed on the vertical frame 10. A vision sensor 21 for detecting the clamping tightness of the milk tea cup 6 and the milk tea lid 15 is fixedly installed on the right mounting plate, and the vision sensor 21 is matched with the hydraulic push rod 25;

[0078] When the milk tea cup 6 on the conveyor belt 5 is conveyed to the visual sensor 21, the visual sensor 21 will perform an appearance visual inspection on the milk tea cup 6 at this time, so as to detect whether the height of the milk tea lid 15 on the milk tea cup 6 meets the standard. If it is detected that the height of the milk tea lid 15 is constant, it means that the milk tea lid 15 is tightly clamped. If it is detected that the height of the milk tea lid 15 is too high, it is determined that the milk tea lid 15 is not tightly clamped. At this time, a signal will be transmitted to the hydraulic push rod 25 and the hydraulic push rod 25 will be controlled to start.

[0079] A sleeve cover 29 is fixedly installed on the driving end of the hydraulic push rod 25. When the hydraulic push rod 25 starts, it drives the sleeve cover 29 below it to move downward. When the sleeve cover 29 moves downward, the milk tea cup 6 that is not tightly clamped will just move downward to directly below the sleeve cover 29. At this time, when the sleeve cover 29 moves downward, it will be sleeved into the milk tea cup 6;

[0080] Since the lower part of the milk tea cup 6 is clamped in the positioning module 27, and the positioning module 27 can slide in the positioning box 26, when the sleeve cover 29 sleeves and positions the milk tea lid 15, the positioning box 26 will continue to be conveyed on the conveyor belt 5, and the milk tea cup 6 cannot be conveyed, which will drive the positioning module 27 to slide relative to the positioning box 26, so that the pressing of the milk tea cup 6 and the milk tea lid 15 on it can be realized without affecting the normal conveying of the conveyor belt 5.

[0081] In a further embodiment, the extrusion assembly includes a compression spring rod 33 fixedly installed in the sleeve cover 29, and a pressing cover plate 31 for pressing the milk tea lid 15 is fixedly installed at the lower part of the compression spring rod 33. A liquid storage box 34 is fixedly installed in the sleeve cover 29;

[0082] When the sleeve cover 29 is sleeved into the milk tea cup 6, at this time, the pressing cover plate 31 will first come into contact with and press the milk tea lid 15 on the milk tea cup 6. As the sleeve cover 29 gradually moves downward, the milk tea lid 15 will gradually push up the pressing cover plate 31, causing the pressing cover plate 31 to move upward relative to the sleeve cover 29 until the pressing cover plate 31 moves to the highest point and cannot move. At this time, when the sleeve cover 29 continues to move downward, it will synchronously drive the pressing cover plate 31 to move downward. When the pressing cover plate 31 moves downward, it will press the milk tea lid 15 to tightly clamp it onto the milk tea cup 6, completing the tight pressing of the milk tea lid 15 and the milk tea cup 6.

[0083] A limiting mechanism for limiting the milk tea cup 6 is installed between the liquid storage box 34 and the gland plate 31. The limiting mechanism includes a liquid storage ring pipe 30 fixedly installed in the sleeving cover 29. A lifting pressing plate 38 is slidably installed in the liquid storage box 34, and hydraulic oil is filled between the lifting pressing plates 38 in the liquid storage box 34. A pushing frame 36 is fixedly installed between the lifting pressing plate 38 and the gland plate 31. A liquid guiding pipe 35 for conducting hydraulic oil is fixedly connected between the liquid storage box 34 and the liquid storage ring pipe 30. The liquid inlet end of the liquid guiding pipe 35 is located above the lifting pressing plate 38, and the liquid guiding pipe 35 is slidably connected to the lifting pressing plate 38;

[0084] When the gland plate 31 moves upward relative to it, it will drive the pushing frame 36 to move upward in the liquid storage box 34. When the pushing frame 36 moves upward, it will drive the lifting pressing plate 38 to move upward. When the lifting pressing plate 38 moves upward, it will squeeze the hydraulic oil above it to be exported downward through the liquid guiding pipe 35, completing the automatic pressing out of the hydraulic oil in the liquid storage box 34.

[0085] The liquid storage ring pipe 30 is filled with hydraulic oil. A plurality of piston expansion and contraction rods 37 for conducting hydraulic oil are fixedly connected to the liquid storage ring pipe 30. A limiting arc plate 32 is fixedly installed on each piston expansion and contraction rod 37. Two contraction springs (not shown in the figure) are fixedly installed between each limiting arc plate 32 and the liquid storage ring pipe 30. The contraction springs are used to enable the limiting arc plate 32 to automatically contract and reset after popping out;

[0086] The hydraulic oil exported from the liquid guiding pipe 35 will be pressed into the liquid storage ring pipe 30. Since the liquid storage ring pipe 30 is filled with hydraulic oil, when the hydraulic oil in it increases, it will be pressed into a plurality of piston expansion and contraction rods 37, that is, it will push the limiting arc plates 32 on the piston expansion and contraction rods 37 to protrude, and the plurality of limiting arc plates 32 can be automatically pushed out to fit against the outer wall of the milk tea cup 6, thereby completing the automatic limiting of the milk tea cup 6, keeping it stable during pressing, and improving the stability when the milk tea lid 15 is pressed against the milk tea cup 6.

[0087] When the milk tea lid 15 is pressed and completed, the hydraulic push rod 25 will drive the sleeving cover 29 to move upward and drive the gland plate 31 to move upward. When the gland plate 31 moves upward and separates from the milk tea lid 15, it will be driven to automatically reset in the sleeving cover 29 under the action of the compression spring rod 33, thereby driving the lifting pressing plate 38 to automatically move downward through the pushing frame 36. At the same time, when the plurality of limiting arc plates 32 are reset, they will drive the piston expansion and contraction rods 37 to reset, and the excess hydraulic oil in the piston expansion and contraction rods 37 can be pressed back into the liquid storage ring pipe 30, and the hydraulic oil will be automatically sucked back into the liquid storage box 34 under the reverse suction action when the lifting pressing plate 38 moves downward, completing the automatic recovery of the hydraulic oil for the automatic pressing of the next milk tea lid 15.

[0088] The specific operation steps of this detection device are as follows:

[0089] Place the milk tea cups 6 to be detected on the positioning box 26 in sequence, and position them through the positioning module 27. Then start the servo motor 3 to drive the conveyor belt 5 to move under the cooperation of the conveying component, completing the automatic conveying of the milk tea cups 6;

[0090] When the milk tea cups 6 are being conveyed normally, when they pass through the photoelectric sensor 19 and the photoelectric sensor 20, the photoelectric sensor 19 will conduct a photovisual detection on the milk tea cups 6 at this time. When the milk tea cups 6 pass through the photoelectric sensor 19, the photoelectric signal emitted by the photoelectric sensor 19 is blocked by the milk tea cups 6 and not received by the photoelectric reflector 14, which is determined that the milk tea cups 6 pass at this time;

[0091] If the photoelectric sensor 20 detects an object, and the photoelectric sensor 19 does not detect an object within 30 milliseconds, it is determined that there is no milk tea cup 6 passing at this time. Furthermore, it is determined that what passes through the photoelectric sensor 20 at this time is not the positioning box 26, but the milk tea lid 15, that is, it is determined that there is a milk tea lid 15 falling off;

[0092] If it is determined that there is a milk tea lid 15 falling off, at this time the photoelectric sensor 20 transmits an electrical signal to the output rejection solenoid valve 12, and controls the alarm lamp 9 to start and emit an alarm through the output rejection solenoid valve 12 to remind the operator to pay attention. The alarm lamp 9 automatically stops after 10 seconds of alarm. The output rejection solenoid valve 12 will control the blower 8 and the control valve 24 on the air duct to start. When the blower 8 starts, it generates an air flow, and the air flow is ejected through the air outlet pipe 22, the air duct and then through the rejection nozzle 17. At this time, the milk tea lid 15 detected by the photoelectric sensor 20 just reaches the horizontal position of the rejection nozzle 17 on the conveyor belt 5. The air flow ejected by the rejection nozzle 17 will blow the milk tea lid 15 horizontally so that it falls into the storage box 7 through the rejection opening 16, completing the automatic detection determination and automatic rejection of the falling milk tea lid 15.

[0093] When the milk tea cups 6 on the conveyor belt 5 are conveyed to the vision sensor 21, the vision sensor 21 will conduct an appearance vision detection on the milk tea cups 6 at this time to detect whether the height of the milk tea lid 15 on the milk tea cups 6 meets the standard. If it is detected that the height of the milk tea lid 15 is a certain value, it means that the milk tea lid 15 is tightly clamped. If it is detected that the height of the milk tea lid 15 is too high, it is determined that the milk tea lid 15 is not tightly clamped. At this time, a signal will be transmitted to the hydraulic push rod 25 and the hydraulic push rod 25 will be controlled to start;

[0094] When the hydraulic push rod 25 starts, it drives the sleeved cover 29 below it to move downward. When the sleeved cover 29 moves downward, the milk tea cup 6 that is not tightly engaged at this time will just move downward to the directly below the sleeved cover 29. At this time, when the sleeved cover 29 moves downward, it will be sleeved into the milk tea cup 6. The pressing cover plate 31 will first come into contact with and press the milk tea cover 15 on the milk tea cup 6. As the sleeved cover 29 gradually moves downward, the milk tea cover 15 will gradually push up the pressing cover plate 31, causing the pressing cover plate 31 to move upward relative to the sleeved cover 29 until the pressing cover plate 31 reaches the highest point and cannot move. At this time, when the sleeved cover 29 continues to move downward, it will synchronously drive the pressing cover plate 31 to move downward. When the pressing cover plate 31 moves downward, it will pressurize the milk tea cover 15, making it tightly engage with the milk tea cup 6, and completing the tight pressing of the milk tea cover 15 and the milk tea cup 6.

[0095] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A visual inspection device for milk tea cup lids, comprising a support frame (4) arranged on a detection support (1) and a plurality of milk tea cups (6), and a milk tea lid (15) is arranged on each milk tea cup (6), characterized in that, It further includes: A conveying unit, arranged on the detection bracket (1), including a conveying component and a positioning component. A conveyor belt (5) for conveying milk tea cups (6) is arranged on the conveying component, and a plurality of positioning components are arranged on the conveyor belt (5) for positioning the milk tea cups (6); An optoelectronic detection unit, arranged on the support frame (4), including an optoelectronic detection component and a rejection component. An optoelectronic sensor one (19) and an optoelectronic sensor two (20) for visually detecting the milk tea cups (6) are arranged in the optoelectronic detection component. The rejection component is based on the optoelectronic detection component for rejecting the dropped milk tea lids (15); A pressing unit, arranged on the support frame (4), including a lifting component and a pressing component. A capping plate (31) for pressing the milk tea lids (15) is arranged in the lifting component. The pressing component cooperates with the lifting component to achieve pressing and limiting of the milk tea cups (6).

2. The visual inspection device for a milk tea cup lid according to claim 1, wherein, A console (2) is arranged on the detection bracket (1). The console (2) is used to control the opening, closing and operating states of the conveying unit, the optoelectronic detection unit and the pressing unit, so as to realize the automatic visual detection of the milk tea cups (6).

3. The visual inspection device for a milk tea cup lid according to claim 1, wherein The conveying component includes a servo motor (3) arranged on the detection bracket (1). A driving roller and a driven roller are rotatably installed on the support frame (4), and the conveyor belt (5) is sleeved between the driving roller and the driven roller. A driving roller is fixedly installed on the driving end of the servo motor (3), and a transmission belt (13) is sleeved between the driving roller and the driving roller.

4. The visual inspection device for a milk tea cup lid according to claim 1, characterized in that, The positioning component includes a positioning box (26) arranged on the conveyor belt (5). A positioning module (27) is slidably installed in the positioning box (26), and the milk tea cup (6) is snap-fitted in the positioning module (27). A plurality of return springs (28) for resetting the positioning module (27) are fixedly installed between the front and rear sides of the positioning module (27) and the inner wall of the positioning box (26).

5. The visual inspection device for a milk tea cup lid according to claim 4, characterized in that, The optoelectronic detection component includes a mounting frame (11) fixedly installed on the support frame (4). Two mounting plates are respectively fixedly installed on both sides of the mounting frame (11), and the two mounting plates are respectively located on both sides of the conveyor belt (5). An optoelectronic sensor one (19) and an optoelectronic sensor two (20) are fixedly installed on the right mounting plate. The optoelectronic sensor one (19) is used to detect whether the milk tea cup (6) exists, and the optoelectronic sensor two (20) is used to detect whether there is an object on the conveyor belt (5). An optoelectronic reflector (14) cooperating with the optoelectronic sensor one (19) and the optoelectronic sensor two (20) is fixedly installed on the left mounting plate; An output rejection solenoid valve (12) cooperating with the optoelectronic sensor one (19) and the optoelectronic sensor two (20) is fixedly installed on the mounting frame (11), and an alarm lamp (9) cooperating with the output rejection solenoid valve (12) is arranged on the mounting frame (11).

6. The visual inspection device for a milk tea cup lid according to claim 5, wherein, The rejection component includes a blower (8) fixedly installed on the detection bracket (1). An air outlet pipe (22) is provided at the air outlet end of the blower (8). A guiding air pipe is fixedly communicated with the air outlet pipe (22), and a control valve (24) is arranged on the guiding air pipe. The control valve (24) cooperates with the output rejection solenoid valve (12). A rejection air nozzle (17) for rejecting the dropped milk tea lids (15) is fixedly communicated with the guiding air pipe. A rejection opening (16) for rejecting the milk tea lids (15) is formed on the support frame (4), and a storage box (7) cooperating with the rejection opening (16) is arranged on the support frame (4).

7. The visual inspection device for a milk tea cup lid according to claim 6, wherein, An ash removal air pipe (23) is fixedly communicated with the guiding air pipe, and a control valve (24) is arranged on the ash removal air pipe (23). An ash removal air hood (18) for blowing and removing ash from the milk tea cups (6) is fixedly communicated with the ash removal air pipe (23).

8. An optical inspection device for milk tea cup lids according to claim 5, characterized in that, The lifting component includes an upright frame (10) fixedly installed on the support frame (4). A hydraulic push rod (25) is fixedly installed on the upright frame (10). A sleeving cover (29) is fixedly installed on the driving end of the hydraulic push rod (25). A vision sensor (21) for detecting the clamping tightness between the milk tea cup (6) and the milk tea lid (15) is fixedly installed on the right mounting plate, and the vision sensor (21) cooperates with the hydraulic push rod (25).

9. The visual inspection device for a milk tea cup lid according to claim 8, characterized in that, The extrusion component includes a compression spring rod (33) fixedly installed in the sleeving cover (29). A lid pressing plate (31) for pressing the milk tea lid (15) is fixedly installed at the lower part of the compression spring rod (33). A liquid storage box (34) is fixedly installed in the sleeving cover (29), and a limiting mechanism for limiting the milk tea cup (6) is installed between the liquid storage box (34) and the lid pressing plate (31).

10. The visual inspection device for a milk tea cup lid according to claim 9, wherein, The limiting mechanism includes a liquid storage ring pipe (30) fixedly installed in the sleeving cover (29), and hydraulic oil is filled in the liquid storage ring pipe (30). A plurality of piston expansion and contraction rods (37) for conducting hydraulic oil are fixedly communicated with the liquid storage ring pipe (30), and a limiting arc plate (32) is fixedly installed on each piston expansion and contraction rod (37). Two contraction springs are fixedly installed between each limiting arc plate (32) and the liquid storage ring pipe (30). A lifting pressure plate (38) is slidably installed in the liquid storage box (34), and hydraulic oil is filled between the lifting pressure plates (38) in the liquid storage box (34). A pushing frame (36) is fixedly installed between the lifting pressure plate (38) and the lid pressing plate (31). A liquid guiding pipe (35) for conducting hydraulic oil is fixedly communicated between the liquid storage box (34) and the liquid storage ring pipe (30). The liquid inlet end of the liquid guiding pipe (35) is located above the lifting pressure plate (38), and the liquid guiding pipe (35) is slidably connected with the lifting pressure plate (38).

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