A feeding device for a tray cleaning line and a control method thereof

Abstract

The present invention discloses a feeding device for a disk cleaning line and a control method thereof, comprising: a disk, including a support column vertically fixed and passing through the disk; a chain conveyor mechanism, including a cleaning machine internal detection switch fixed to the outside of the chain and a plurality of conveying units for transporting the disk, each conveying unit including a plurality of conveying rods fixed on the chain and parallel to each other, the cleaning machine internal detection switch being used to detect whether the first conveying rod away from the feeding conveyor mechanism among the plurality of conveying rods on each conveying unit is in place; the feeding conveyor mechanism being used to safely push the disk on the feeding mesh belt to the top of the conveying rod on the chain conveyor mechanism according to the in-place detection signal of the cleaning machine internal detection switch, so that the support column can be driven by the first conveying rod at the lower rear to realize the transportation of the disk. Compared with the prior art, the device of the present invention can solve the problems of uncertain position of manually placed disks and the inability to accurately position the disks and the transmission rods on the chain.

Description

Technical Field

[0001] The present invention belongs to the technical field of material conveying, and in particular relates to a feeding device for a tray cleaning line and a control method thereof. Background Art

[0002] In pharmaceutical production, various biological laboratories use eggs to "seed" vaccines, and eggs are shipped in trays such as egg trays, which creates a need for cleaning of the egg trays. To facilitate stacking and storage of trays, the egg trays designed according to customer needs are hollow squares with a thickness of 15mm and four support columns on each side. The special nature of this structure leads to certain difficulties during operation. In addition, for semi-automatic egg tray and other tray cleaning lines, manual loading of trays onto the feed mesh belt is required. To facilitate subsequent cleaning and disinfection of the trays, the trays must be accurately positioned with the chain drive rod when conveying them inside the cleaning machine to achieve stable uphill and downhill transportation. Otherwise, slipping, tray blockage, and jamming may occur, affecting the operation of the production line.

[0003] However, there is no accurate spacing guarantee for the manually loaded trays, which may cause the spacing of the trays transported from the feed mesh belt to the chain to become disordered, resulting in the inability to unify the spacing between the trays, thereby affecting subsequent processes such as disinfection, rinsing and drying.

[0004] Based on this, it is necessary to design a feeding device for the tray cleaning line to control the forward rhythm and speed of the semi-automatic manual loading tray on the feeding mesh belt, and to connect it with the chain mechanism in the continuously running cleaning machine to ensure that the tray conforms to the tray positioning of the internal transmission of the cleaning machine and meets the conveying requirements. Summary of the Invention

[0005] The present invention provides a feeding device for a tray cleaning line and a control method thereof, which are used to solve the contradiction between the uncertainty of the position of the manually placed tray and the inability to accurately position the tray and the transmission rod on the chain, so as to realize the uniform spacing of the tray from disorder, and achieve accurate positioning of the tray and the chain transmission rod.

[0006] The present invention provides a feeding device for a tray cleaning line, comprising:

[0007] The tray body includes a support column vertically fixed and passing through the tray body;

[0008] A chain conveyor mechanism, comprising an internal detection switch fixed to the outside of the chain and a plurality of conveyor units for transporting the tray, each of the conveyor units comprising a plurality of conveyor rods fixed to the chain and parallel to each other, the internal detection switch for detecting whether the first conveyor rod of the plurality of conveyor rods on each conveyor unit, which is away from the feed conveyor mechanism, is in place;

[0009] The feed conveying mechanism is used to safely push the disc on the feed mesh belt to the top of the conveying rod on the chain conveying mechanism according to the in-place detection signal of the detection switch in the cleaning machine, so that the support column can be driven by the first conveying rod at the lower rear to realize the transportation of the disc.

[0010] Preferably, there are four support columns on each tray, forming a pair of front support columns and a pair of rear support columns on the upper and lower sides of the tray, and the pair of front support columns on the lower side of the tray can be driven by the first transmission rod.

[0011] Preferably, the first conveying rod is provided with a stainless steel sheet that can be detected by a detection switch in the cleaning machine, and the side length of the conveying unit along the conveying direction is greater than the fixed spacing distance between two adjacent conveying units.

[0012] Preferably, the side length of the conveying unit along the conveying direction is smaller than the vertical distance from a pair of front support columns on the lower side of the tray to the upper rear edge of the tray.

[0013] Preferably, the feed conveying mechanism includes a first-station limit mechanism, a second-station limit mechanism, a first-station detection switch, a second-station detection switch and a disk body interval detection switch. The first-station limit mechanism, the first-station detection switch and the disk body interval detection switch are arranged at the end of the feed mesh belt, the second-station limit mechanism is arranged above the feed mesh belt away from the first-station limit mechanism, and the second-station detection switch is arranged between the first-station limit mechanism and the second-station limit mechanism along the conveying direction. The first-station limit mechanism and the second-station limit mechanism can block the support column on the disk body by lifting and lowering, and the first-station detection switch and the second-station detection switch can detect whether the support column on the disk body is in place.

[0014] Preferably, the first station limit mechanism can block a pair of rear support columns on the upper side of the disk body according to the detection signal of the first station detection switch, and the second station limit mechanism can block a pair of rear support columns on the upper side of the disk body according to the detection signal of the second station detection switch.

[0015] Preferably, the first station limit mechanism can release the blocking limit on the rear support column according to the in-position detection signal of the detection switch in the cleaning machine, and the second station limit mechanism can release the blocking limit on the rear support column according to the empty position detection signal of the disk body spacing detection switch.

[0016] Preferably, the vertical distance between the detection switch in the cleaning machine and the workstation limit mechanism along the conveying direction is L1, which is greater than the vertical distance from a pair of front support columns on the upper side of the disk body to a pair of rear support columns, and is smaller than the vertical distance from the pair of front support columns on the upper side of the disk body to the rear edge of the disk body.

[0017] Preferably, the relative distance between the disk spacing detection switch and the second-station limit mechanism along the conveying direction is L2, which is greater than the vertical distance from a pair of rear support columns on the upper side of the disk to the front edge of the disk, and less than the side length of the disk along the conveying direction.

[0018] In another aspect, the present invention further discloses a control method for the feeding device of the tray cleaning line as described above, the control method comprising the following steps:

[0019] Feeding the tray: When the station detection switch detects the front support column of the tray body A, the station limit mechanism blocks the rear support column of the tray body A by descending;

[0020] Tray Pushing: Tray B is placed on the feed mesh belt. Tray B moves forward to the rear of the blocked tray A and stops. When the second-station detection switch detects the front support column of tray B, the second-station limit mechanism descends. When the detection switch inside the cleaning machine detects the arrival signal of the first conveying rod, the first-station limit mechanism lifts and lowers to release the blocking limit on tray A. Tray B can push tray A to continue moving forward for a distance and hook the first conveying rod, so that tray A can be transported on the conveying unit.

[0021] Chuck: The rear support column of the disk body B moves forward to the second-station limit mechanism and stops. When the disk body interval detection switch detects an empty position detection signal, the second-station limit mechanism releases the blocking limit on the disk body B by lifting.

[0022] Compared with the prior art, the tray cleaning line feeding device and the control method thereof in the present invention have the following beneficial effects:

[0023] (1) The tray cleaning line feeding device of the present invention solves the docking and positioning problem of manual tray loading and unequally spaced transmission by the machine, and can ensure that the spacing between trays such as egg trays is uniform and orderly, and no longer requires manual loading to follow the rhythm of the machine; workers who load trays can freely load trays according to their own rhythm, and different workers can easily get started, which reduces labor intensity and improves feeding efficiency. It can also safely and stably transfer the trays from the feed mesh belt to the chain, so that subsequent tray cleaning, disinfection and drying processes can be carried out on the hollow chain conveyor mechanism to facilitate vaccination. In addition, the tray cleaning speed on the cleaning line can be controlled by adjusting the fixed interval distance between two adjacent conveying units to meet energy saving and other requirements.

[0024] (2) Considering that the transmission method of mesh belt sliding friction is adopted when the disk is manually loaded, the friction force of the feed mesh belt can only transmit half of the disk A to pass the driven pulley, and cannot make it continue to move forward to reach the docking position with the unequally spaced transmission rod of the chain in the cleaning machine. Therefore, the present invention also designs a set of combined action mechanisms including sensors and controllers on the feed conveyor mechanism, and through the reasonable setting of the position and action mode of each component, it is realized that the subsequent disk B uses the feed mesh belt to automatically push the half of the disk A located outside the feed mesh belt. Because the running speed of the feed mesh belt is slightly greater than the running speed of the transmission rod of the conveying unit on the lower front chain conveyor mechanism, the disk B close to the rear of the disk A can continue to move forward to push the disk A, and provide appropriate forward power to the disk A to reach the docking position in front of the first transmission rod, and finally push the disk A safely to the top of the transmission rod on the chain conveyor mechanism. In addition, the feed conveyor mechanism has the advantages of compact structure and easy maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 It is a side view of the disc body of the present invention;

[0027] Figure 2 It is a schematic diagram of the disk being transported by the transmission rod on the chain in the present invention;

[0028] Figure 3 It is a three-dimensional schematic diagram of the feeding device of the tray cleaning line of the present invention;

[0029] Figure 4 It is a top view schematic diagram of the docking of the feed conveyor mechanism and the chain conveyor mechanism in the feeding device of the tray cleaning line of the present invention, wherein the black arrow indicates the transport direction of the tray;

[0030] Figure 5 This is a schematic diagram of the beat control of the feed conveying mechanism of the present invention, in which the conveying direction of the disc is from bottom to top.

[0031] Reference numerals:

[0032] 1. Frame, 2. Frequency conversion motor, 3. Driving pulley, 4. Driven pulley, 5. Feed mesh belt, 6. One-station limit mechanism, 7. Two-station limit mechanism, 8. One-station detection switch, 9. Two-station detection switch, 10. Cleaning machine internal detection switch, 11. Disk interval detection switch, 12. Conveyor rod, 13. Support column. DETAILED DESCRIPTION

[0033] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] In order to facilitate stacking storage and batch transportation, the present invention designs a tray body as an egg tray according to the customer's cleaning needs. Figure 1 As shown, the tray is a hollow square with a thickness of 15mm. After cleaning, it can orderly place multiple eggs used in pharmaceutical production. Four supporting columns are located on each side, facilitating all-round cleaning, chain-linked transport, and stacking and storage of the trays. However, the unique structure of this tray leads to certain operational difficulties, especially when transporting the trays on the feed conveyor before the cleaning process. Manual placement of the trays is uncertain, and the trays cannot be accurately positioned with the transmission rods on the chain.

[0035] Example 1:

[0036] In order to realize the unordered transportation of the trays to the uniform intervals and to achieve accurate positioning with the transmission rod of the chain, the present invention has designed a tray cleaning line feeding device, such as Figure 2-4 As shown, the feeding device of the tray cleaning line includes:

[0037] The disc body includes a support column 13 vertically fixed and passing through the disc body;

[0038] The chain conveyor mechanism includes an internal detection switch 10 fixed to the outside of the chain and multiple conveyor units for transporting the trays. Each conveyor unit includes a plurality of conveyor rods 12 fixed to the chain and parallel to each other. The internal detection switch 10 is used to detect whether the first conveyor rod away from the belt conveyor mechanism among the plurality of conveyor rods 12 on each conveyor unit is in place.

[0039] The feed conveying mechanism is used to safely push the disc on the feed mesh belt 5 to the top of the conveying rod 12 on the chain conveying mechanism according to the in-place detection signal of the detection switch 10 in the cleaning machine, so that the support column 13 can be driven by the first conveying rod at the lower rear to realize the transportation of the disc.

[0040] It can be seen from this that through the orderly control of the disc body by the above-mentioned chain conveyor mechanism and the feed conveyor mechanism, when there is a fixed interval distance between the conveying units, the disc body can be hung from the feed conveyor mechanism to the conveying rod of the chain conveyor mechanism for orderly transportation, so as to realize the disc body from disorderly transportation to uniform intervals, and achieve accurate positioning with the transmission rod of the chain.

[0041] It is worth mentioning that, when the chain width and the length of the conveying rod are long enough, multiple disks can be transported in parallel on the same conveying rod 12 on the chain conveying mechanism. Therefore, in order to prevent the conveying rod at the same position in the front or rear from being deformed, more than one conveying rod 12 can be set in the front or rear as needed to strengthen the support (for example, Figure 2 There is only one conveying rod at the front and rear of the lower part of the middle plate body, and the two rods constitute a conveying unit, and the front rod is the first conveying rod), so that the number of conveying rods 12 in each conveying unit can be more than two, for example, the number of conveying rods 12 at the front of the lower plate body is two, and the number of conveying rods at the rear is one, for a total of three conveying rods; or the number of conveying rods 12 at the front of the lower plate body is two, and the number of conveying rods at the rear is also two, for a total of four conveying rods, and so on. Therefore, the present invention limits the number of conveying rods to constitute a conveying unit.

[0042] Specifically, such as Figure 2 As shown, the tray body can be an egg tray, and the number of support columns 13 on each tray body is four, forming a pair of front support columns and a pair of rear support columns on the upper and lower sides of the tray body, and the pair of front support columns on the lower side of the tray body can be driven by the first conveying rod.

[0043] Specifically, in order to ensure that the disk body remains parallel to the transmission direction of the chain conveyor mechanism below, the side length of the conveying unit along the transmission direction is smaller than the vertical distance from a pair of front support columns on the lower side of the disk body to the upper rear edge of the disk body, thereby ensuring that each conveying unit can support and drive the transportation of a disk body in parallel, and will not cause the rear of the disk body to be unsupported.

[0044] Specifically, the first conveyor rod is provided with a stainless steel sheet that can be detected by the in-machine detection switch 10, while the other conveyor rods 12 do not have stainless steel sheets. This allows the in-machine detection switch 10 on one side of the chain to accurately identify the first conveyor rod at the front of each conveyor unit without identifying subsequent conveyor rods 12. It should be noted that the in-machine detection switch 10 detecting whether the first conveyor rod is in place is not limited to identifying the stainless steel sheet on the conveyor rod. A heterogeneous extensible protrusion structure can also be provided on the corresponding front conveyor rod, and the extensible protrusion structure can only be detected by the in-machine detection switch.

[0045] In addition, if Figure 3-4It can be seen that in order to accurately identify each conveying unit, ensure that the spacing between the discs on the chain conveying mechanism is uniform and compact, and avoid the situation where the spacing between the discs is greater than the length of the discs along the conveying direction, which wastes workstations and easily causes the discs to fall, the present invention preferably sets the side length of the conveying unit along the conveying direction to be greater than the fixed spacing distance between two adjacent conveying units, so as to orderly form a distribution arrangement of unequally spaced conveying rods of different lengths on the chain. For example, Figure 5 The side length of the conveying unit along the conveying direction is 193mm, the fixed spacing distance between two adjacent conveying units is 115mm, and the length of the disc body is greater than 193mm. Figure 5 The four white dots on the middle plate body correspond to four support columns 13.

[0046] On the contrary, if there is no gap between the trays, it is impossible to distinguish whether the tray has been transferred. Only one endless action can be performed. Tray B, tray C... enter the cleaning line together, and cannot match the position of the unequally spaced transfer rods 12, and cannot achieve normal transfer.

[0047] Example 2:

[0048] Considering that the manual loading of the trays uses a mesh belt sliding friction transmission method, the friction force of the feed mesh belt 5 can only transmit half of the tray A over the driven pulley, and cannot enable it to continue to advance and reach the docking position with the unequally spaced chain conveyor rods in the cleaning machine. Therefore, the present invention also designs a set of combined action mechanisms including sensors and controllers on the feed conveyor mechanism. By rationally setting the positions and action modes of various components, it realizes the function of the subsequent tray B using the feed mesh belt to automatically push the half of the tray A located outside the feed mesh belt. Therefore, after detecting the first conveyor rod, the tray on the feed mesh belt 5 is released and pushed to hang on the first conveyor rod of the chain conveyor mechanism below.

[0049] Specifically, such as Figure 3-5As shown, the feed conveying mechanism of the present invention specifically includes a first-station limit mechanism 6, a second-station limit mechanism 7, a first-station detection switch 8, a second-station detection switch 9 and a disk spacing detection switch 11. The first-station limit mechanism 6, the first-station detection switch 8 and the disk spacing detection switch 11 are all arranged at the end of the feed mesh belt 5 (the three can basically be regarded as being located at the same position) to position and release the disk that is about to enter the chain conveying mechanism through detection and control, and to make the overall structure compact enough. The second-station limit mechanism 7 is arranged above the feed mesh belt 5 away from the first-station limit mechanism 6, and the second-station detection switch 9 is arranged between the first-station limit mechanism 6 and the second-station limit mechanism 7 along the conveying direction. The first-station limit mechanism 6 and the second-station limit mechanism 7 can block the support column 13 on the upper surface of the disk by lifting and lowering. The first-station detection switch 8 and the second-station detection switch 9 can detect whether the support column 13 on the disk is in place.

[0050] Specifically, such as Figure 3 As shown, when the first-station limit mechanism 6 and the second-station limit mechanism 7 are above the feed mesh belt 5, the first-station limit mechanism 6 can descend to block the pair of rear support columns on the upper side of the disk body according to the detection signal of the first-station detection switch 8, and the second-station limit mechanism 7 can descend to block the pair of rear support columns on the upper side of the disk body according to the detection signal of the second-station detection switch 9. In addition, the first-station limit mechanism 6 can rise to release the blocking limit on the rear support columns according to the in-position detection signal of the cleaning machine detection switch 10, and the second-station limit mechanism 7 can rise to release the blocking limit on the rear support columns on the disk body according to the empty position detection signal of the disk body spacing detection switch 11. Preferably, the first-station limit mechanism 6 and the second-station limit mechanism 7 can be driven by a cylinder.

[0051] Specifically, the feed conveyor mechanism also includes a frame 1, a frequency conversion motor 2, a driving pulley 3 and a driven pulley 4. The feed mesh belt 5 is arranged on the driving pulley 3 and the driven pulley 4 of the frame 1. The frequency conversion motor 2 drives the driving pulley 3 to rotate, and the driving pulley 3 drives the driven pulley 4 and the feed mesh belt 5 to move. In addition, considering that if the feed mesh belt 5 is set as a belt conveyor, when the first-station limit mechanism 6 and the second-station limit mechanism 7 descend to block the disk, the support column 13 at the bottom of the disk is likely to rub against the belt conveyor that continues to move below, so in order to reduce friction and ensure the feeding mesh belt 5's conveying effect on the disk, the present invention preferably sets the feeding mesh belt 5 as a conveyor belt composed of two transmission chains located on the left and right sides of the disk, the two transmission chains of the conveyor belt are suspended in the middle, and the disk can be transmitted on the conveyor belt with limit bars on both sides, so that when the disk is blocked and limited, the wear on the feeding mesh belt 5 is reduced, and it can also ensure that the disk is subjected to the transmission force of the feeding mesh belt 5 after being released.

[0052] It should be pointed out that when the feed mesh belt 5 is a conveyor belt composed of two transmission chains on the left and right sides of the disk, the first-station limit mechanism 6 and the second-station limit mechanism 7 can also be set below the middle of every two transmission chains on the feed mesh belt 5, so as to block the transmission of the support column 13 below the disk by rising, and release the blocking limit of the disk by falling, and at this time the action direction of the lifting and limiting mechanism is exactly the same as Figure 4 In short, the first position limit mechanism 6 and the second position limit mechanism can complete the blocking and releasing of the disk body through a variety of lifting methods. Figure 3 The corresponding working modes are described for the one-station limiting mechanism 6 and the two-station limiting mechanism 7 .

[0053] Specifically, the vertical distance between the detection switch 10 in the cleaning machine and a station limit mechanism 6 along the conveying direction is L1, and L1 is greater than the vertical distance from a pair of front support columns to a pair of rear support columns on the upper side of the tray body, see Figure 5 As shown in the schematic diagram of the second vertical transmission line, this ensures that when the tray A is released by a work-station limit mechanism 6, the first transmission rod is located a short distance below and in front of the front support column of the tray A; in addition, L1 can also be set to be smaller than the vertical distance from a pair of front support columns on the upper side of the tray to the rear edge of the tray, so as to avoid the tray A being unable to hang on the first transmission rod due to insufficient thrust of the rear tray B, resulting in interference affecting the transportation of the tray B that is about to fall into the next conveying unit.

[0054] Specifically, the relative distance between the tray spacing detection switch 11 and the second-station limit mechanism 7 along the conveying direction is L2, which is greater than the vertical distance from the pair of rear support columns on the upper side of the tray to the front edge of the tray, see Figure 5 As shown in the schematic diagram of the third vertical transmission line (i.e., the feeding mesh belt 5 on the far right), when the tray A completely leaves the feeding mesh belt 5 and the tray B is blocked by the second-station limit mechanism 7, it can ensure that the tray spacing detection switch 11 can detect the empty position signal, thereby knowing the corresponding status of the tray A and the tray B; in addition, L2 must also be less than the side length of the tray along the transmission direction, see Figure 5 As shown in the schematic diagram of the second vertical transmission line (i.e. the middle feed mesh belt 5), it is ensured that the disc B is blocked and stuck by the rear of the disc A before pushing the disc. At this time, the rear support column of the disc B is at a pushing distance from the second-station limit mechanism 7 in front.

[0055] In order to thoroughly clarify the advantages of the present invention, the specific working process of the feeding device of the tray cleaning line is now described in combination with the above embodiments:

[0056] Feeding the tray: manually place the tray A on the feeding mesh belt, and the power transmission belt or chain of the feeding mesh belt will transport the tray A forward. When a station detection switch 8 detects the front support column of the tray A, a station limit mechanism 6 will lower and block the rear support column of the tray A to prevent the egg trays from entering the cleaning machine in disorder and causing jamming. The status corresponding to this step can be seen in Figure 5 A schematic diagram of the first vertical transmission line is shown in FIG.

[0057] Pushing the plate: Continue to place the plate body B on the feed mesh belt, and the plate body B moves forward to the rear of the blocked and limited plate body A and stops. When the second-station detection switch 9 detects the front support column of the plate body B, the second-station limit mechanism 7 drops in advance, and the rear support column of the plate body B does not contact the second-station limit mechanism 7; at this time, the cylinder of the second-station limit mechanism 7 is about 100mm away from the rear support column of the plate body B (the purpose of this 100mm distance: due to the transmission method of mesh belt sliding friction, the friction force of the mesh belt can only transmit half of the plate body A to exceed the driven pulley, and it cannot continue to move forward to reach the docking position with the transmission rod 12 which is not equidistant from the chain in the cleaning machine. The plate body B can continue to move forward to push the plate body A, provide the plate body A with forward power, and reach the docking position), and the plate body B can continue to move forward 100mm before being restricted by the second-station limit mechanism 7. When the detection switch 10 in the cleaning machine detects the arrival signal of the first conveying rod, it indicates that the positions of the tray A and the first conveying rod have been preliminarily matched. The first position limit mechanism 6 is lifted to release the blocking limit of the tray A. The tray B can push the tray A to continue to move forward for a distance and hook the first conveying rod in front, so that the tray A can be transported on the conveying unit. The status corresponding to this step can be seen in Figure 5 A schematic diagram of a second vertical transmission line is shown in FIG.

[0058] Chuck: The rear support column of tray B moves forward to the second-station limit mechanism 7 and stops. When the tray gap detection switch 11 detects the empty detection signal, it means that tray A has been separated from the feeding conveyor mechanism. A gap appears between trays A and B. Tray A enters the cleaning machine for automatic transmission, confirming that the transmission of one egg tray has been completed. At this time, the second-station limit mechanism 7 is lifted to release the blocking limit on tray B, thereby starting the transmission of the second tray B and re-running the same program logic for tray A to ensure that the logic operates correctly according to the cycle. The status corresponding to this step can be seen in Figure 5 The schematic diagram of the third vertical transmission line is shown in FIG.

[0059] It is also worth mentioning that the operating speed of the feed mesh belt 5 needs to be slightly faster than the operating speed of the conveyor rod of the conveying unit on the chain conveyor mechanism below it. This allows the tray B, which is closely attached to the rear of tray A, to continue moving forward to push tray A, providing appropriate forward momentum for tray A to catch up and reach the docking position in front of the first conveyor rod. In addition, if the tray spacing detection switch 11 does not send a tray signal, it means that there is no tray at the first station. The limit at the second station is released, and the feed mesh belt 5 feeds tray B forward to the first station, repeating the action of tray A. At this time, there is no tray at the second station, and tray C is manually placed on the conveyor mesh belt, repeating the action of tray B. With the continuous alternating movement of the egg trays, the present invention ultimately achieves manual irregular loading of the trays, matching the intermittent transmission of the unequally spaced conveyor rods of the cleaning machine, and can realize semi-automatic feeding and docking of egg trays on different conveyor lines.

[0060] 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 make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A feeding device for a tray cleaning line, characterized in that: include: The tray body includes a support column (13) vertically fixed and passing through the tray body; A chain conveying mechanism comprises a cleaning machine internal detection switch (10) fixed on the outside of the chain and a plurality of conveying units for conveying the tray, each of the conveying units comprising a plurality of conveying rods (12) fixed on the chain and parallel to each other, the cleaning machine internal detection switch (10) being used to detect whether the first conveying rod away from the feed conveying mechanism among the plurality of conveying rods (12) on each conveying unit is in place; A feeding conveying mechanism is used for safely pushing the disk on the feeding mesh belt (5) to the top of the conveying rod (12) on the chain conveying mechanism according to the in-position detection signal of the detection switch (10) in the cleaning machine, so that the support column (13) can be driven by the first conveying rod at the lower rear to realize the transportation of the disk; the feeding conveying mechanism includes a first-station limit mechanism (6), a second-station limit mechanism (7), a first-station detection switch (8), a second-station detection switch (9) and a disk spacing detection switch (11), wherein the first-station limit mechanism (6), the first-station detection switch (8) and the disk spacing detection switch (11) are arranged at the end of the feeding mesh belt (5), the second-station limit mechanism (7) is arranged above the feeding mesh belt (5) away from the first-station limit mechanism (6), and the second-station detection switch (9) is arranged between the first-station limit mechanism (6) and the second-station limit mechanism (7) along the conveying direction.

2. The feeding device of the tray cleaning line according to claim 1, characterized in that: There are four support columns (13) on each tray, forming a pair of front support columns and a pair of rear support columns on the upper and lower sides of the tray. The pair of front support columns on the lower side of the tray can be driven by the first transmission rod (12).

3. The feeding device of the tray cleaning line according to claim 1, characterized in that: The first conveying rod is provided with a stainless steel sheet that can be detected by a detection switch (10) in the cleaning machine, and the side length of the conveying unit along the conveying direction is greater than the fixed spacing distance between two adjacent conveying units.

4. The feeding device of the tray cleaning line according to claim 2, characterized in that: The side length of the conveying unit along the conveying direction is smaller than the vertical distance from a pair of front support columns on the lower side of the tray body to the upper rear edge of the tray body.

5. The feeding device of the tray cleaning line according to claim 4, characterized in that: The first-station limit mechanism (6) and the second-station limit mechanism (7) can block the support column (13) on the disk body by lifting and lowering, and the first-station detection switch (8) and the second-station detection switch (9) can detect whether the support column (13) on the disk body is in place.

6. The feeding device of the tray cleaning line according to claim 5, characterized in that: The first-station limit mechanism (6) can be raised or lowered to block a pair of rear support columns on the upper side of the disk body according to a detection signal from a first-station detection switch (8), and the second-station limit mechanism (7) can be raised or lowered to block a pair of rear support columns on the upper side of the disk body according to a detection signal from a second-station detection switch (9).

7. The feeding device of the tray cleaning line according to claim 6, characterized in that: The first-station limit mechanism (6) can release the blocking limit on the rear support column according to the in-position detection signal of the detection switch (10) in the cleaning machine, and the second-station limit mechanism (7) can release the blocking limit on the rear support column according to the empty position detection signal of the disk spacing detection switch (11).

8. The feeding device of the tray cleaning line according to claim 7, characterized in that: The vertical distance between the detection switch (10) in the cleaning machine and the one-station limit mechanism (6) along the conveying direction is L1, which is greater than the vertical distance from the pair of front support columns on the upper side of the disk body to the pair of rear support columns, and less than the vertical distance from the pair of front support columns on the upper side of the disk body to the rear edge of the disk body.

9. The feeding device of the tray cleaning line according to claim 8, characterized in that: The relative distance between the disk spacing detection switch (11) and the second-station limit mechanism (7) along the conveying direction is L2, which is greater than the vertical distance from a pair of rear support columns on the upper side of the disk to the front edge of the disk, and less than the side length of the disk along the conveying direction.

10. A control method for a feeding device of a tray cleaning line according to claim 9, characterized in that: The control method comprises the following steps: Entering the tray: when the first station detection switch (8) detects the front support column of the tray body A, the first station limit mechanism (6) blocks the rear support column of the tray body A by lifting and lowering; Pushing the plate: placing the plate B on the feeding mesh belt (5), the plate B moves forward to the rear of the plate A which is blocked and limited, and stops. When the second-station detection switch (9) detects the front support column of the plate B, the second-station limit mechanism (7) is lifted and lowered in advance to limit the position; when the detection switch (10) in the cleaning machine detects the arrival signal of the first transmission rod, the first-station limit mechanism (6) is lifted and lowered to release the blocking limit on the plate A, and the plate B can push the plate A to continue to move forward for a distance and hook the first transmission rod, so that the plate A is transported on the conveying unit; Chuck: The rear support column of the disk body B moves forward to the second-station limit mechanism (7) and stops. When the disk body interval detection switch (11) detects an empty position detection signal, the second-station limit mechanism (7) releases the blocking limit on the disk body B by lifting.

Images