Glass slide detection method suitable for automatic loading device

Abstract

The present invention discloses a method for detecting a glass slide suitable for an automatic feeding device, which is realized by a glass slide lifting device arranged on one side of a slide pushing device, and includes: S1, initialization judgment; S2, glass slide loading: first, lifting operation of the first top glass slide is performed: then, preparation work for lifting operation of the second top glass slide is performed: then, lifting operation of the second top glass slide is performed: finally, lifting operation of other subsequent top glass slides is performed according to the preparation work and lifting operation steps for lifting operation of the second top glass slide. The present invention adopts a method of dividing the pushing end of the lifting mechanism into two-stage strokes, and accurately pushes out the glass slide through a secondary compensation stroke, thereby avoiding the problem of slide pushing failure caused by thickness difference or adhesion of the glass slide; by analyzing and judging the motor pulse data when the photoelectric sensor is triggered in different states, and correcting the data, the detection quality of the automated detection equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of slide pushing, and in particular to a slide detection method suitable for an automatic feeding device. Background Art

[0002] When using an optical microscope to observe samples, a slide specimen must be made first. Whether it is traditional manual slide making or modern automatic slide making, it includes three steps: placing the slide, adding samples, and placing the cover glass. For automatic slide making, it also involves the lifting and transportation of the slide, that is, lifting the boxed slides to a certain height, and then the slide pushing mechanism pushes the first slide out of the slide box in the horizontal direction. The purpose is to divide the boxed slides into single slides and then transport them to the designated positions. Because the slides are thin (thickness is about 1mm), quality control is more difficult (generally controlled at 1±0.1mm). Therefore, for slides with different thicknesses, if the slides are lifted and pushed at a fixed height difference, it is easy to fail to push the slides. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a slide detection method suitable for an automatic feeding device, which is easy to install and debug and has high slide pushing accuracy. Specifically, the following technical solutions can be adopted:

[0004] The slide detection method suitable for the automatic feeding device of the present invention is realized by a slide lifting device arranged on one side of the slide pushing device.

[0005] The slide lifting device comprises:

[0006] Bracket;

[0007] A slide box, arranged on the support, for accommodating slides stacked one above the other;

[0008] A lifting mechanism, comprising a lifting motor disposed below the slide box and a pushing rod in contact with the bottom slide, the pushing rod being driven by the lifting motor;

[0009] A photoelectric sensor is arranged on one side of the slide box and is lower than the push-out height of the top slide;

[0010] Wherein, the signal output end of the photoelectric sensor is electrically connected to the signal output end of the control center, the control output end of the control center is electrically connected to the control input end of the lifting mechanism, and when the push rod of the lifting mechanism runs from bottom to top, the top glass slide has a first position of triggering the sensor and a second position of reaching the push position, and when the top glass slide reaches the first position and the second position, the pulse numbers of the lifting motor of the lifting mechanism are recorded as A1 and A2 respectively, and the difference between A2 and A1 is recorded as the compensation value PUSH;

[0011] The slide detection method comprises:

[0012] S1, initialization judgment

[0013] The glass slide is placed in an initial position lower than the photoelectric sensor, and then the lifting mechanism is started, and the motor pulse value A for lifting the top glass slide to the trigger position of the photoelectric sensor is recorded; then, the push rod of the lifting mechanism retracts, and the glass slide is lowered by the height of two glass slides; after that, the glass slide is lifted again, and the motor pulse value B when the photoelectric sensor is triggered for the second time is recorded; when the photoelectric sensor is triggered for the second time, the lifting mechanism stops; calculate whether the difference between AB satisfies the judgment, if it does, it means that the initial state of the glass slide is normal, and the lifting mechanism is started to lower the glass slide by the height of two glass slides, and prepare for the glass slide loading operation; if it does not meet the judgment, it means that the state of the glass slide is abnormal or the equipment assembly is unstable, and the glass slide loading operation can be carried out after processing;

[0014] S2, slide loading

[0015] First, lift the first top slide:

[0016] Start the lifting mechanism to raise the slide from the initial position until the first top slide reaches the first position C that triggers the photoelectric sensor. Then, calculate AA=(A+B) / 2, start the lifting mechanism again, and rotate the lifting motor to the position of AA+PUSH. At this time, the first top slide reaches the push position and is pushed out of the slide box by the push mechanism.

[0017] Next, prepare for the lifting of the second top slide:

[0018] The lifting motor is controlled to move to the position of AA-686, so that the second top glass slide falls to the waiting position, and then the second top glass slide is raised to the trigger position of the photoelectric sensor and the motor pulse value D is recorded; then, the lifting motor is controlled to move to the position of D-686 again, and then the second top glass slide is raised to the trigger position of the photoelectric sensor and the motor pulse value E is recorded;

[0019] Then, lift the second top slide:

[0020] 1) Calculate whether the difference of ED meets the judgment. If it does, it means that the slide is in normal condition. Calculate BB = (E + D) / 2;

[0021] 1.1 Calculate the difference between BB and AA to see if it meets the criteria. If it does, it means the slide is in normal condition. The lifting motor is specified to move to the position of BB+PUSH, which is the required lifting height of the second top slide. Then, the value of BB is assigned to AA, i.e., AA=BB. Then, under the action of the slide pushing mechanism, it is pushed out of the slide box.

[0022] 1.2 Calculate whether the difference between BB and AA meets the judgment. If not, it means that the slide is abnormal. Specify the lifting motor to move to the position of AA+343+PUSH, which is the lifting height required for the second top slide. Then assign the value of AA+343 to AA, that is, AA=AA+343.

[0023] 2) If the calculated ED difference does not meet the judgment, it means that the slide state is abnormal, and the lifting motor is specified to move to the position of AA+343+PUSH, which is the lifting height required for the second top slide, and then the value of AA+343 is assigned to AA, that is, AA=AA+343;

[0024] Finally, the lifting operations of other subsequent top glass slides are performed according to the preparation work and lifting operation steps for the lifting operation of the second top glass slide.

[0025] In the step 1.1, if the difference between BB and AA does not satisfy the judgment, F is introduced, the default initial value of F is 0, and F=F+1 is executed. When F is less than or equal to 1, CC is introduced and CC=BB. When the F value is greater than 1, it is determined whether BB-CC satisfies the judgment. If so, F and CC are cleared, and the lifting motor is specified to move to the position of BB+PUSH, and the abnormal state is exited; if BB-CC does not satisfy the judgment, CC=BB specifies that the lifting motor moves to the position of AA+343+PUSH; in the step 2), if the difference between ED does not satisfy the judgment, the F value is cleared.

[0026] The slide box has a containing cavity adapted for the slide, and the containing cavity has a bottom opening, a top opening, and a side opening for conveniently placing the slide.

[0027] The lifting motor of the lifting mechanism is arranged on the bracket, the driving end of the lifting motor is connected to the transmission belt, the transmission belt is provided with a lifting block, and the lifting block is provided with the pushing rod located below the slide.

[0028] The lifting block is slidably connected to a linear guide rail arranged on the bracket, two push rods are arranged side by side, and a supporting plate with a planar structure is arranged on the top of each push rod.

[0029] A mounting frame is arranged on the bracket, and the photoelectric sensor is arranged on the top of the mounting frame.

[0030] The glass slide detection method suitable for an automatic loading device provided by the present invention adopts a method of dividing the pushing end of the lifting mechanism into two-stage strokes, and the glass slide is accurately pushed out through a secondary compensation stroke, thereby avoiding the problem of glass slide pushing failure caused by thickness difference or adhesion of the glass slide; secondly, since the photoelectric sensor can be installed at any height lower than the glass slide pushing position, the installation difficulty of the photoelectric sensor is reduced, and the glass slide pushing failure caused by inaccurate installation position is avoided; finally, since the present invention can reduce the probability of glass slide pushing failure by analyzing and determining the motor pulse data when the photoelectric sensor is triggered under different states and correcting the data, it can achieve fast and accurate glass slide pushing, thereby improving the detection quality of automated detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the slide lifting device of the present invention.

[0032] Figure 2 yes Figure 1 Rear view of. DETAILED DESCRIPTION

[0033] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0034] like Figure 1 , 2As shown, the slide detection method suitable for the automatic feeding device of the present invention is realized by a slide lifting device arranged on one side of the slide pushing device, and the slide lifting device includes a bracket 1, and a slide box 2 is installed on the bracket 1 for accommodating slides stacked up and down. In this embodiment, the slide box 2 is located at the top of the bracket 1, and has a accommodating cavity adapted to the slide M, and the accommodating cavity can accommodate about 50 slides. In order to facilitate the placement and pushing of the slides, the bottom, top and side of the slide box are provided with operation ports. A lifting mechanism is arranged below the slide box 2, which includes a lifting motor 3 installed on the bracket 1, and the driving end of the lifting motor 3 is connected to the transmission belt 4, and the transmission belt 4 is provided with a lifting block 6 connected to the linear guide 5 in a sliding manner, and the lifting block 6 is provided with two push rods 7 arranged side by side, and the top of the push rod 7 (i.e., the push end) contacts the bottom slide of the slide box 2. The linear guide rail 5 is vertically mounted on the inner wall of the bracket 1. When the lifting motor 3 is started, the transmission belt 4 rotates, driving the lifting block 6 to move upward or downward, and the push rod 7 thereon moves upward or downward accordingly. In order to increase the contact area with the glass slide, a support plate with a planar structure is arranged at the top of the push rod 7. The side of the glass slide box 2 is also provided with a mounting frame 8 fixed on the bracket 1, and a photoelectric sensor 9 is installed on the top of the mounting frame 8. The signal output end of the photoelectric sensor 9 is electrically connected to the signal output end of the control center, and the control output end of the control center is electrically connected to the control input end of the lifting mechanism. When the push rod 7 of the lifting mechanism runs from bottom to top, the top glass slide has a first position that triggers the sensor 9 and a second position that reaches the push position. When the top glass slide reaches the first position and the second position, the pulse number of the lifting motor 3 of the lifting mechanism is recorded as A1 and A2 respectively, and the difference between A2 and A1 is recorded as the compensation value PUSH. The above PUSH value is debugged after the photoelectric sensor 9 is installed to ensure that the debugging is completed before the equipment leaves the factory.

[0035] The push-out principle of the present invention is as follows: first, the top of the push rod 7 is located at the initial position (lower than the excitation position of the photoelectric sensor 9), then, the push motor 3 is started to raise the push rod 7, which first contacts the slide at the bottom of the slide box 2, and then pushes the slide up until the top slide reaches the excitation position of the photoelectric sensor 9 (i.e., the first position). At this time, the photoelectric sensor 9 sends a signal to the control center to stop the push motor 3; then, the control center rotates the push motor 3 again according to the PUSH value until the top slide reaches the height of the push-out position (i.e., the second position). At this time, the top slide has accurately reached the height of the push-out position, and the push device is activated to push the top slide out of the slide box 2.

[0036] Since the photoelectric sensor 9 is fixed in position and the top glass slide is not lifted to the final ejection position when the photoelectric sensor 9 is triggered, no matter how many glass slides are in the glass slide box 2, it can be ensured that when the photoelectric sensor 9 is triggered, the height of the top glass slide relative to the box opening of the glass slide box 2 is fixed. When the lifting motor 3 rotates again by the corresponding number of pulses, the top glass slide can always be lifted to the fixed position (i.e., the ejection position), so that the glass slide can be smoothly ejected.

[0037] The slide detection method suitable for an automatic feeding device of the present invention comprises:

[0038] S1, initialization judgment

[0039] The glass slide is placed in an initial position lower than the photoelectric sensor 9, and then the lifting mechanism is started, and the motor pulse value A for lifting the top glass slide to the trigger position of the photoelectric sensor 9 is recorded; then, the push rod 7 of the lifting mechanism is retracted, and the glass slide is then lowered by the height of two glass slides; thereafter, the glass slide is lifted again, and the motor pulse value B when the photoelectric sensor 9 is triggered for the second time is recorded; when the photoelectric sensor 9 is triggered for the second time, the lifting mechanism stops; calculate whether the difference between AB satisfies the judgment, if it does, it means that the initial state of the glass slide is normal, and the lifting mechanism is started to lower the glass slide by the height of two glass slides, and prepare for the glass slide loading operation; if it does not, it means that the state of the glass slide is abnormal or the equipment assembly is unstable, and the glass slide loading operation is performed after processing;

[0040] S2, slide loading

[0041] First, lift the first top slide:

[0042] Start the lifting mechanism to raise the slide from the initial position until the first top slide reaches the first position C that triggers the photoelectric sensor 9. Then, calculate AA=(A+B) / 2, start the lifting mechanism again, and rotate the lifting motor 3 to the position of AA+PUSH. At this time, the first top slide reaches the push position and is pushed out of the slide box by the push mechanism.

[0043] Next, prepare for the lifting of the second top slide:

[0044] The lifting motor 3 is controlled to move to the position of AA-686, so that the second top glass slide falls to the waiting position, and then the second top glass slide is raised to the trigger position of the photoelectric sensor 9 and the motor pulse value D is recorded; then, the lifting motor 3 is controlled to move to the position of D-686 again, and then the second top glass slide is raised to the trigger position of the photoelectric sensor 9 and the motor pulse value E is recorded;

[0045] Then, lift the second top slide:

[0046] 1) Calculate whether the difference of ED meets the judgment. If it does, it means that the slide is in normal condition. Calculate BB = (E + D) / 2;

[0047] 1.1 Calculate whether the difference between BB and AA satisfies the judgment. If it does, it means that the slide is in normal condition. Specify the lifting motor 3 to move to the position of BB+PUSH, which is the lifting height required for the second top slide. Assign the value of BB to AA, that is, AA=BB (the lifting height required for the second slide is BB+PUSH, and AA=BB means that the current sensor detection value is assigned and saved for the next calculation of BB-AA). Then, under the action of the slide pushing mechanism, push it out of the slide box;

[0048] 1.2 Calculate whether the difference between BB and AA satisfies the judgment. If not, it indicates that the slide is abnormal. Specify the lifting motor 3 to move to the position of AA+343+PUSH, which is the lifting height required for the second top slide. Assign the value of AA+343 to AA, that is, AA=AA+343 (the lifting height required for the second slide is AA+343+PUSH, and AA=AA+343 means that the current sensor trigger compensation value is assigned and saved for the next calculation of BB-AA).

[0049] 2) If the calculated difference of ED does not meet the judgment, it means that the state of the slide is abnormal, and the lifting motor 3 is specified to move to the position of AA+343+PUSH, which is the lifting height required for the second top slide, and the value of AA+343 is assigned to AA, that is, AA=AA+343 (the lifting height required for the second slide is AA+343+PUSH, and AA=AA+343 means that the current sensor trigger compensation value is assigned and saved for the next calculation of BB-AA judgment);

[0050] Finally, the lifting operations of other subsequent top glass slides are performed according to the preparation work and lifting operation steps for the lifting operation of the second top glass slide.

[0051] In the above step 1.1, if the difference between BB and AA does not meet the judgment, F is introduced, the default initial value of F is 0, and F=F+1 is executed. When F is less than or equal to 1, CC is introduced and CC=BB. When the F value is greater than 1, it is determined whether BB-CC meets the judgment. If it meets, F and CC are cleared, and the lifting motor 3 is specified to move to the position of BB+PUSH, and the abnormal state is exited; if BB-CC does not meet the judgment, CC=BB specifies that the lifting motor 3 moves to the position of AA+343+PUSH; in the step 2), if the difference between ED does not meet the judgment, the F value is cleared.

[0052] The above steps 1) and 2) are mutually exclusive, and steps 1.1 and 1.2 are mutually exclusive.

[0053] The above judgment parameter values ​​are as follows:

[0054] AB meets the judgment range: greater than -33 and less than 33;

[0055] ED meets the judgment range: greater than -33 and less than 33;

[0056] BB-AA meets the judgment range: greater than 305 and less than 377;

[0057] BB-CC meets the judgment range: greater than 305 and less than 377;

[0058] Among them, the meaning of assignment: = is to assign the value corresponding to the letter after the equal sign to the letter before the equal sign.

[0059] Slide thickness: The thickness of a slide is approximately 1 mm, and the corresponding motor pulse number is 343

[0060] Explanation of the meaning of the above determination method:

[0061] In the above slide pushing process, AB and ED are two detections of each slide before being lifted to the specified height, indicating that the same number of slides in the same state undergo the same detection action twice. If the difference between the two detections is too large, it indicates that the slide state is abnormal or the overall structure is unstable. At this time, it needs to be judged as an abnormal state. If AB is abnormal, it means that the initial state is unstable and there is no stable state to refer to, and the experiment is terminated.

[0062] If ED is abnormal, it means that the current slide is abnormal. At this time, the detection value of the previous slide of the current detection slide can be used as an abnormality processing method. After the abnormality processing, the experiment can still be carried out. The processing method can be understood as after the previous slide is pushed out, the current slide is pushed up one slide higher than the height of the previous slide, which is the current theoretical height, that is, AA+PUSH+343.

[0063] BB-AA and BB-CC represent the difference in sensor detection heights of two adjacent glass slides. Ideally, this difference should be the thickness of a glass slide. When this difference exceeds the specified range, it means that the glass slide is abnormal and needs to be handled. The handling method is the same as above, which is AA+PUSH+343. In short, the exception handling method is to shield the current sensor detection and calculate the subsequent required lifting height according to the previously normally launched glass slide height theory.

[0064] After entering the abnormal state processing method, the subsequent experiments still need to return to normal logic when the slide state is normal, that is, re-enable sensor judgment. The reasons are: 1. When the slide state is abnormal or the sensor judgment is abnormal, it is an occasional situation, and correction is only required when it occurs occasionally.

[0065] The theoretically calculated height is not applicable to a large number of slides, mainly because there is an error in the thickness of the slide. After multiple consecutive compensations for the thickness of a slide, the accumulated compensation value of the theoretical compensation value will differ from the sum of the actual thickness of the slide, resulting in an inappropriate compensation value and failure to push the slide.

[0066] There are two situations of returning to normal logic: one is that both ED and BB-AA values ​​return to the normal judgment range; the other is that ED judgment is normal and BB-CC judgment is normal (CC is the sensor detection value discarded during abnormal processing). BB-CC judgment is normal, which means that after the abnormal processing, the two adjacent glass slide detections have returned to a stable state, but the actual height of the glass slide and the theoretical compensation value have exceeded the limit. This is because BB-AA often does not meet the judgment, so it is necessary to return to the normal logic of stable sensor detection.

[0067] The following are some abnormal situations:

[0068] 1) If the photoelectric sensor is still not triggered after the lifting rod is lifted to the maximum height (limited by the number of motor pulses), it can be determined that there is no slide in the slide box or the slides are used up.

[0069] 2) Before each slide pushing action, the slide lifting action will be repeated twice for sensor detection (the sensor will be triggered twice). If the difference in the number of motor pulses during the two triggers is too large (more than 10% of the motor pulses corresponding to the thickness of the slide), it can be determined that the slide posture is abnormal.

[0070] 3) The difference between the sensor detection values ​​of each two adjacent slides (the corresponding motor pulse value when the sensor is triggered) is judged. If the difference exceeds the thickness of one slide ± 10% of the thickness of the slide, it can be judged that the slide posture is abnormal.

[0071] 4) When the above 2 and 3 items occur, that is, the system determines that the slide is abnormal, the motor pulse value cannot accurately reflect the actual height of the slide when the sensor is triggered. At this time, the current slide detection value can be discarded, and the height of a standard slide can be added to the last detection value as the current detection value, so as to achieve the handling of abnormal situations.

[0072] In the present invention, since the position of the sensor is fixed, no matter how many slides are in the slide box, it can be ensured that when the photoelectric sensor is triggered, the height of the top slide relative to the opening of the slide box is fixed. Therefore, when the lifting motor drives the lifting rod to move upward for a fixed number of pulses, the top slide can be lifted to the final height and smoothly pushed out through the slide pushing device.

[0073] The photoelectric sensor of the present invention is fixed in position and has low installation requirements; the lifting motor has high movement accuracy and is easy to debug, thereby ensuring accurate and smooth operation of the sheet pushing action.

[0074] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships, such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

Claims

1. A method for detecting a glass slide suitable for an automatic feeding device, which is realized by a glass slide lifting device arranged on one side of a slide pushing device, characterized in that: The slide lifting device comprises: Bracket; A slide box, arranged on the support, for accommodating slides stacked one above the other; A lifting mechanism, comprising a lifting motor disposed below the slide box and a pushing rod in contact with the bottom slide, the pushing rod being driven by the lifting motor; A photoelectric sensor is arranged on one side of the slide box and is lower than the push-out height of the top slide; Wherein, the signal output end of the photoelectric sensor is electrically connected to the signal output end of the control center, the control output end of the control center is electrically connected to the control input end of the lifting mechanism, and when the push rod of the lifting mechanism runs from bottom to top, the top glass slide has a first position of triggering the sensor and a second position of reaching the push position, and when the top glass slide reaches the first position and the second position, the pulse numbers of the lifting motor of the lifting mechanism are recorded as A1 and A2 respectively, and the difference between A2 and A1 is recorded as the compensation value PUSH; The slide detection method comprises: S1, initialization judgment The glass slide is placed in an initial position lower than the photoelectric sensor, and then the lifting mechanism is started, and the motor pulse value A for lifting the top glass slide to the trigger position of the photoelectric sensor is recorded; then, the push rod of the lifting mechanism retracts, and the glass slide is lowered by the height of two glass slides; after that, the glass slide is lifted again, and the motor pulse value B when the photoelectric sensor is triggered for the second time is recorded; when the photoelectric sensor is triggered for the second time, the lifting mechanism stops; calculate whether the difference between AB satisfies the judgment, if it does, it means that the initial state of the glass slide is normal, and the lifting mechanism is started to lower the glass slide by the height of two glass slides, and prepare for the glass slide loading operation; if it does not meet the judgment, it means that the state of the glass slide is abnormal or the equipment assembly is unstable, and the glass slide loading operation can be carried out after processing; S2, slide loading First, lift the first top slide: Start the lifting mechanism to raise the slide from the initial position until the first top slide reaches the first position C that triggers the photoelectric sensor. Then, calculate AA=(A+B) / 2, start the lifting mechanism again, and rotate the lifting motor to the position of AA+PUSH. At this time, the first top slide reaches the push position and is pushed out of the slide box by the push mechanism. Next, prepare for the lifting of the second top slide: The lifting motor is controlled to move to the position of AA-686, so that the second top glass slide falls to the waiting position, and then the second top glass slide is raised to the trigger position of the photoelectric sensor and the motor pulse value D is recorded; then, the lifting motor is controlled to move to the position of D-686 again, and then the second top glass slide is raised to the trigger position of the photoelectric sensor and the motor pulse value E is recorded; Then, lift the second top slide: 1) Calculate whether the difference of ED meets the judgment. If it does, it means that the slide is in normal condition. Calculate BB = (E + D) / 2; 1.1 Calculate the difference between BB and AA to see if it meets the criteria. If it does, it means the slide is in normal condition. The lifting motor is specified to move to the position of BB+PUSH, which is the required lifting height of the second top slide. Then, the value of BB is assigned to AA, i.e., AA=BB. Then, under the action of the slide pushing mechanism, it is pushed out of the slide box. 1.2 Calculate whether the difference between BB and AA meets the judgment. If not, it means that the slide is abnormal. Specify the lifting motor to move to the position of AA+343+PUSH, which is the lifting height required for the second top slide. Then assign the value of AA+343 to AA, that is, AA=AA+343. 2) If the calculated ED difference does not meet the judgment, it means that the slide state is abnormal, and the lifting motor is specified to move to the position of AA+343+PUSH, which is the lifting height required for the second top slide, and then the value of AA+343 is assigned to AA, that is, AA=AA+343; Finally, the lifting operations of other subsequent top glass slides are performed according to the preparation work and lifting operation steps for the lifting operation of the second top glass slide.

2. The slide detection method suitable for an automatic feeding device according to claim 1, characterized in that: In the step 1.1, if the difference between BB and AA does not satisfy the judgment, F is introduced, the default initial value of F is 0, and F=F+1 is executed. When F is less than or equal to 1, CC is introduced and CC=BB. When the F value is greater than 1, it is determined whether BB-CC satisfies the judgment. If so, F and CC are cleared, and the lifting motor is specified to move to the position of BB+PUSH, and the abnormal state is exited; if BB-CC does not satisfy the judgment, CC=BB specifies that the lifting motor moves to the position of AA+343+PUSH; in the step 2), if the difference between ED does not satisfy the judgment, the F value is cleared.

3. The slide detection method suitable for an automatic feeding device according to claim 1 or 2, characterized in that: The slide box has a containing cavity adapted for the slide, and the containing cavity has a bottom opening, a top opening, and a side opening for conveniently placing the slide.

4. The method for detecting a glass slide suitable for an automatic feeding device according to claim 1 or 2, characterized in that: The lifting motor of the lifting mechanism is arranged on the bracket, the driving end of the lifting motor is connected to the transmission belt, the transmission belt is provided with a lifting block, and the lifting block is provided with the pushing rod located below the slide.

5. The method for detecting a glass slide suitable for an automatic feeding device according to claim 4, characterized in that: The lifting block is slidably connected to a linear guide rail arranged on the bracket, two push rods are arranged side by side, and a supporting plate with a planar structure is arranged on the top of each push rod.

6. The method for detecting a glass slide suitable for an automatic loading device according to claim 1 or 2, characterized in that: A mounting frame is arranged on the bracket, and the photoelectric sensor is arranged on the top of the mounting frame.

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