Tray supply device

Abstract

The present invention discloses a tray supply device, comprising a first tray mechanism and a second tray mechanism, wherein the first tray mechanism is arranged below the second tray mechanism, and the space between the two matches the thickness of the tray, and the first tray mechanism and the second tray mechanism are actuated in sequence; the second tray mechanism is displaced to detach from the tray, and the bottom tray is fitted into the first tray mechanism, and the second tray mechanism is restored to be fitted with the second bottom tray to limit it, and the first tray mechanism is displaced to detach from the bottom tray, so that the bottom tray completes the unloading operation, and the first tray mechanism is restored. The present invention can be pulled out from the bottom of the last tray body through the first tray mechanism, so that the tray body falls, and the additional dial mechanism can ensure that only one tray body falls at a time, and the design combines the drive of the dial mechanism and the drive of the lower support plate that can be originally arranged separately into one, so as to reduce energy consumption, and the device is driven by a motor to complete the function of only one tray body being unloaded at a time.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a tray supply device. Background Art

[0002] During the operation of the rice seedling raising line, empty trays need to be placed into the entrance of the rice seedling raising line one by one without interruption. The seedling trays are transported by the belt of the rice seedling raising line to carry out bottom soil laying, watering, sowing and covering soil in turn. At present, the work of placing empty trays is done manually, one by one, which is labor-intensive and inefficient. If the trays are not placed in time, mistakes are likely to occur, resulting in the inability to connect the seedling trays, resulting in sowing and soil being scattered outside the seedling trays, causing waste. Therefore, it is very important to obtain an automatic tray placing machine that automatically completes the tray placing work by a tray supply device after stacking several trays at a time. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problems and provide a tray supply device, including a first tray mechanism and a second tray mechanism, the first tray mechanism is arranged below the second tray mechanism, and the space between the two matches the thickness of the tray, the first tray mechanism and the second tray mechanism are actuated in sequence; the second tray mechanism is displaced to separate from the tray, the bottom tray is fitted into the first tray mechanism, the second tray mechanism returns to fit with the second bottom tray to limit it, the first tray mechanism is displaced to separate from the bottom tray, so that the bottom tray completes the unloading operation, and the first tray mechanism returns.

[0004] The first tray mechanism and the second tray mechanism are both unscrew components, and the unscrew components include a connecting member, which is hinged and generates a circular displacement when rotating around its hinge axis.

[0005] The first tray mechanism and the second tray mechanism are coaxially arranged, and the second tray mechanism is arranged on the inner side of the first tray mechanism so that the first tray mechanism is arranged below the second tray mechanism; the tray supply device also includes a hinge shaft portion, the hinge shaft portion includes an inner hinge shaft and an outer hinge shaft arranged concentrically, and the swing-open component of the first tray mechanism is hingedly arranged through the outer hinge shaft, and the swing-open component of the second tray mechanism is hingedly arranged through the inner hinge shaft.

[0006] In order to reduce energy input, the present invention combines the hinge shafts of the first tray mechanism and the second tray mechanism into one, so that the control of the two mechanisms can be completed by one motor.

[0007] The unscrewing component serving as the second tray mechanism also includes a dial component, which includes a dial plate and an extension plate arranged at the outer end of the dial plate, and the middle part of the dial plate is hinged to the connecting piece of the second tray mechanism; and the second tray mechanism is fitted between the bottom material tray and the sub-bottom material tray; when the first tray mechanism is displaced to separate from the bottom material tray, the second tray mechanism and the dial plate arranged thereon are stationary, the first tray mechanism acts on the extension plate to make the dial plate rotate around the hinge axis, and the front end of the dial plate acts on the bottom material tray to realize the dial pulling operation.

[0008] The connecting piece comprises a main body and a connecting part. The main body is hingedly arranged. The connecting part is matched with the main body to generate a circumferential displacement when the main body rotates around its hinge axis.

[0009] It also includes a driving mechanism for driving the first tray mechanism and the second tray mechanism, including a cam group consisting of a motor, a first cam and a second cam fixed to the motor output shaft, a third pull rod and a first pull rod respectively controlling the first tray mechanism and the second tray mechanism to rotate around their hinge axes, and the other ends of the first pull rod and the third pull rod are rollingly connected to the cam group through the first bearing and the second bearing respectively.

[0010] The shape of the cam group satisfies the following conditions: in the initial state, the lower support plate holds the bottom surface of the lowest disk body, the dial mechanism contacts the lower surface of the edge of the second-to-last disk body, or is located between the lower surface of the edge of the second disk body and the top surface of the last disk body; when the lower support plate is rotated by the motor, it is driven to be pulled out from the bottom of the lowest disk body, and the lowest disk body falls, and the lower support plate continues to move upward, with the end against the dial plate, and the dial plate pushes the second-to-last disk body downward, and the fixed plate is acted on by the motor to be pulled out from the edge of the second-to-last disk body, at which time the lower support plate returns to the initial state, so that the second-to-last disk body falls into the last disk body area.

[0011] It also includes an anti-misplaced-fall mechanism, which includes a control component and a relay that controls the operation of the drive mechanism. The control component extends to the bottom of the stacked tray area. The control component is hinged to the main body of the mechanism. The tray falls and presses the control component downward. The other end of the control component presses against the normally open contact of the relay, cutting off the power supply of the drive mechanism. The control component recovers when it is not subjected to external force. The edge of the falling tray will touch the control component, which presses against the normally open contact, cutting off the power supply to prevent the tray from falling in the wrong place, and ensuring that the seedling trays fall in order and without overlapping. The fallen seedling trays are conveyed by the belt of the seedling raising line until they no longer touch the control component and the normally open contact is disconnected. The second tray dropping process will be carried out, and the cycle will continue.

[0012] A track bracket is arranged at the side of the motor, and a track groove is opened on the track bracket. The first pull rod and the third pull rod move up and down in the track groove respectively. A fixing pin is arranged at the side of the motor, and the fixing pin and the pull rod are provided with springs to ensure the upward traction force.

[0013] It also includes a reset mechanism, including a control switch, the bottom of which is hinged with a roller, the roller contacts the second cam surface, ensuring that the motor still rotates after the power switch is turned off, and the first tray mechanism performs a recovery action to ensure that the motor still rotates after the main power is turned off. When the roller contacts the second cam surface at the position farthest from the motor, that is, when the lower tray returns to the position where it can be normally dragged out of the bottom tray, the power is completely cut off and the motor no longer rotates. When the power switch is disconnected, the control switch is similar to the control box structure, the roller is in consistent contact with the surface of the second cam, and its internal contacts are always closed, turning on the power supply and the motor, so that the motor is powered normally. When the roller is located at the position farthest from the motor when in contact with the second cam surface, the internal contacts are disconnected. At this time, the control switch and the power switch are both disconnected, and the power is completely cut off, and the motor no longer rotates.

[0014] The present invention can also be used for feeding stackable objects such as trays, boxes, and cases.

[0015] Compared with the prior art, the advantages of the present invention are: the present invention is provided with a first tray mechanism, which can be pulled out from the bottom of the last tray through the lower supporting plate to make the tray fall, and the additional dial assembly can ensure that only one tray falls at a time, and the design combines the drive of the dial mechanism and the drive of the lower supporting plate that can be originally set separately into one, thereby reducing energy consumption, and the device is driven by a motor to complete the function of dropping only one tray at a time, thereby freeing up human resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a stereogram of the present invention;

[0017] Figure 2 A three-dimensional diagram of the present invention with a motor housing;

[0018] Figure 3 It is a schematic diagram of the cam group structure;

[0019] Figure 4 It is a schematic diagram of the working structure of the first tray mechanism and the second tray mechanism;

[0020] Figure 4a Instructions for dial operation Figure 1 ; Figure 4b Instructions for dial operation Figure 2 ; Figure 4c Instructions for dial operation Figure 3 ;

[0021] Figure 5 Schematic diagram of the anti-falling mechanism;

[0022] Figure 6 This is a schematic diagram of the back connection structure of the cam assembly of the present invention;

[0023] Figure 7for Figure 1 A magnified image;

[0024] Figure 8 It is a cross-sectional view of the hinge shaft of the present invention;

[0025] Reference numerals: 1-inner hinge shaft; 2-connecting member; 3-outer hinge shaft; 4-first pull rod; 5-second pull rod; 6-first bearing; 7-motor; 8-power switch; 9-first cam; 10-connecting member; 11-connecting arm; 12-adjusting hole; 13-disc body; 15a-dial plate; 15b-dial plate; 16-first torsion spring; 17-third pull rod; 18-fourth pull rod; 19-second bearing; 20-second cam; 21-disc seat; 22-fixed arm; 23-adjusting arm; 24-long hole; 25-control box; 26-second torsion spring; 27-control part; 28-relay; 29-square hole; 30-track bracket; 31-track groove; 32-spring; 33-control switch; 34-roller; 35-short limit plate; 36-long limit plate; 37-fixed foot; 38-perforation; 39-frame; 40-bearing seat; 41-insert plate. DETAILED DESCRIPTION

[0026] Referring to the attached drawings, the present invention adopts the following technical scheme: a tray supply device, including a first tray mechanism and a second tray mechanism, the first tray mechanism is arranged below the second tray mechanism, and the space between the two matches the thickness of the tray, the first tray mechanism and the second tray mechanism are actuated in sequence; the second tray mechanism is displaced to detach from the tray, the bottom tray is fitted into the first tray mechanism, the second tray mechanism is restored to fit with the second bottom tray to limit it, the first tray mechanism is displaced to detach from the bottom tray, so that the bottom tray completes the unloading operation, and the first tray mechanism is restored. The distance between the first tray mechanism and the second tray mechanism is close to the spacing of a tray height, which can be completed: when all the trays are moved down, the second tray mechanism needs to be able to be positioned to the second bottom tray. That is, the first tray mechanism is located at the bottom of the bottom tray, and the second tray mechanism is located between the top of the second bottom tray and the top of the bottom tray. When the present invention is put into use, the present invention is installed on the frame, and the middle position of the frame forms an area for placing stacked trays.

[0027] The first tray mechanism and the second tray mechanism are both unscrew components, and the unscrew components include a connecting member, which is hinged and generates a circular displacement when rotating around its hinge axis.

[0028] The first tray mechanism and the second tray mechanism are coaxially arranged, and the second tray mechanism is arranged on the inner side of the first tray mechanism so that the first tray mechanism is arranged below the second tray mechanism; the tray supply device also includes a hinge shaft portion, the hinge shaft portion includes an inner hinge shaft and an outer hinge shaft arranged concentrically, and the swing-open component of the first tray mechanism is hingedly arranged through the outer hinge shaft, and the swing-open component of the second tray mechanism is hingedly arranged through the inner hinge shaft.

[0029] The connecting parts of the first tray include: an insert plate and a connecting arm, the connecting arm is fixedly connected to the outer hinge shaft, an adjustment hole is opened at the bottom of the connecting arm, the adjustment hole is a long hole, and the insert plate is fixed by bolts. Since the adjustment hole is a long hole, the insert plate can adjust the insertion length to cooperate with the dial plate, thereby adjusting the rotation angle of the dial plate to adapt to various sizes of trays.

[0030] The connecting member of the second tray includes a fixed plate and a tray seat, the tray seat includes a fixed arm fixedly connected to the inner hinge shaft and an adjustment arm fixed to the fixed arm by bolts, the fixed plate is fixed to the adjustment arm by bolts, the fixed arm is provided with a long hole, the adjustment arm is fixed by the long hole, due to the setting of the long hole, the length formed between the adjustment arm and the fixed arm is adjustable. The adjustment arm is provided with a long hole, the fixed plate is fixed by the long hole, that is, the second tray mechanism can move left and right through the long hole, and is suitable for trays of various widths.

[0031] In order to reduce energy input, the present invention combines the hinge shafts of the first tray mechanism and the second tray mechanism into one, so that the control of the two mechanisms can be completed by one motor.

[0032] The unscrewing assembly of the second tray mechanism also includes a dial assembly, which includes a dial plate and an extension plate arranged at the outer end of the dial plate, and the middle part of the dial plate is hinged on the connecting piece of the second tray mechanism; and the second tray mechanism cooperates between the bottom material tray and the sub-bottom material tray; when the first tray mechanism is displaced to detach from the bottom material tray, the second tray mechanism and the dial plate arranged thereon are stationary, the first tray mechanism acts on the extension plate to make the dial plate rotate around the hinge axis, and the front end of the dial plate acts on the bottom material tray to realize the dial pulling operation, and a first torsion spring is sleeved on the hinge axis between the dial plate and the connecting piece. The working process of the first tray mechanism and the second tray mechanism is as follows: Figure 4a , 4b , as shown in 4c.

[0033] The connecting member includes a main body and a connecting part, the main body is hingedly arranged, and the connecting part is matched with the main body to generate a circumferential displacement when the main body rotates around its hinge axis. It also includes a driving mechanism for driving the first tray mechanism and the second tray mechanism, including a cam group consisting of a motor, a first cam and a second cam fixed to the motor output shaft, and a third pull rod and a first pull rod for respectively controlling the first tray mechanism and the second tray mechanism to rotate around their hinge axes, and the other ends of the first pull rod and the third pull rod are rollingly connected to the cam group through the first bearing and the second bearing respectively.

[0034] The cylinder can also be used as a drive for the first tray mechanism and the second tray mechanism. The output shaft of the cylinder moves horizontally to drive the tray mechanism to be pulled out from the bottom of the tray body, or inserted, to complete the drop of the tray supply machine.

[0035] The shape of the cam group satisfies the following conditions: in the initial state, the lower support plate holds the bottom surface of the lowest disk body, the dial mechanism contacts the lower surface of the edge of the second-to-last disk body, or is located between the lower surface of the edge of the second disk body and the top surface of the last disk body; when the lower support plate is rotated by the motor, it is driven to be pulled out from the bottom of the lowest disk body, and the lowest disk body falls, and the lower support plate continues to move upward, with the end against the dial plate, and the dial plate pushes the second-to-last disk body downward, and the fixed plate is acted on by the motor to be pulled out from the edge of the second-to-last disk body, at which time the lower support plate returns to the initial state, so that the second-to-last disk body falls into the last disk body area.

[0036] It also includes an anti-misalignment mechanism, which includes a control part and a relay for controlling the operation of the driving mechanism. The control part extends below the stacked tray area, and the control part is hinged to the main body of the mechanism. The tray falls and presses the control part downward. The other end of the control part presses against the normally open contact of the relay, cutting off the power supply of the driving mechanism, and the control part recovers when it is not subjected to external force. The edge of the falling tray will touch the control part, which presses against the normally open contact, cuts off the power supply, prevents the tray from falling in the wrong place, and ensures that the seedling tray falls in order and does not overlap. The fallen seedling tray is conveyed by the belt of the seedling raising production line until it no longer touches the control part, the normally open contact is disconnected, and the second tray falling process will be carried out, and the cycle will continue. The fallen seedling tray is conveyed by the belt of the seedling raising production line until it no longer touches the control part, the normally open contact is disconnected, and the second tray falling process will be carried out, and the cycle will continue. A square hole is opened on the frame, and the control box is fixed to the square hole by a butterfly bolt. It can be adjusted laterally along the position of the square hole to use trays of various sizes.

[0037] A track bracket is arranged on the side of the motor, and a track groove is provided on the track bracket. The first pull rod and the third pull rod move up and down in the track groove respectively. A fixing pin is arranged on the side of the motor, and a spring is provided on the fixing pin and the pull rod to ensure its upward traction. Bearing seats are fixed on both sides of the frame, and the outer hinge shaft is arranged in the bearing seat through a bearing to reduce the friction of the machine body, reduce loss, and increase the service life. One end of the spring hooks the fixing pin, and a through hole is provided on the first pull rod, the second pull rod, the third pull rod and the fourth pull rod, and the other end of the spring hooks through the through hole. The first pull rod, the second pull rod, the third pull rod and the fourth pull rod are respectively fixedly connected to the hinge shaft where they are located by bolts. The motor is fixed on the motor bracket, and the motor bracket is fixed on the frame by bolts. The output shaft of the motor is connected to the cam group through a coupling. By controlling the rotation of the cam group, the first pull rod, the second pull rod, the third pull rod and the fourth pull rod are driven to move up and down, thereby driving the operation of the lower support plate and the dial mechanism.

[0038] It also includes a reset mechanism, including a control switch, the bottom of which is hinged with a roller, the roller contacts the second cam surface, ensuring that the motor still rotates after the power switch is turned off, and the first tray mechanism performs a recovery action to ensure that the motor still rotates after the main power is turned off. When the roller contacts the second cam surface at the farthest distance from the motor, that is, when the lower tray returns to the position where it can be normally dragged out of the bottom tray, the power is completely cut off and the motor no longer rotates. When the power switch is disconnected, the control switch is similar to the control box structure, the roller is in contact with the surface of the second cam, and its internal contacts are always closed, turning on the power supply and the motor, so that the motor is powered normally. When the roller is located at the contact position with the second cam surface and is farthest from the motor, the internal contacts are disconnected. At this time, the control switch and the power switch are both disconnected, and the power is completely cut off, and the motor no longer rotates. The control switch is a roller rod control switch, and its model is AZ7121.

[0039] In order to fix the rack for placing the stacked disks upwards with short and long limit plates respectively by bolts, different limit plates are selected according to the different heights of the stacked disks to limit the disks. Fixed feet are welded or integrally formed at the four corners of the rack, and butterfly bolts are threaded on the fixed feet.

[0040] Those skilled in the art will better understand the present invention, and thus more clearly define the scope of the present invention. The present invention is described in detail below with respect to some specific embodiments of the present invention. It should be noted that the following are only some specific implementation methods of the present invention, which are only part of the embodiments of the present invention, wherein the specific and direct description of the relevant structure is only for the convenience of understanding the present invention, and each specific feature does not naturally and directly limit the scope of implementation of the present invention. The conventional selections and substitutions made by those skilled in the art under the guidance of the present invention should be regarded as within the scope of the present invention.

Claims

1. A tray supply device, characterized in that: It includes a first tray mechanism and a second tray mechanism, the first tray mechanism is arranged below the second tray mechanism, and the space between the two matches the thickness of the material tray, the first tray mechanism and the second tray mechanism are actuated in sequence; the second tray mechanism is displaced to separate from the material tray, the bottom material tray is fitted into the first tray mechanism, the second tray mechanism is restored to fit with the second bottom material tray to limit it, the first tray mechanism is displaced to separate from the bottom material tray, so that the bottom material tray completes the unloading operation, and the first tray mechanism is restored; The first tray mechanism and the second tray mechanism are both unscrew components, and the unscrew components include a connecting member (10) which is hingedly arranged and generates a circumferential displacement when rotating around its hinge axis; The swing-opening assembly as the second tray mechanism also includes a dial assembly, which includes a dial plate (15a) and an extension plate (15b) arranged at the outer end of the dial plate, and the middle part of the dial plate is hinged on the connecting member (2) of the second tray mechanism; and the second tray mechanism is matched between the bottom material tray and the second bottom material tray; when the first tray mechanism is displaced to separate from the bottom material tray, the second tray mechanism and the dial plate (15a) arranged thereon are stationary, the first tray mechanism acts on the extension plate (15b) to make the dial plate (15a) rotate around the hinge axis, and the front end of the dial plate (15a) acts on the bottom material tray to realize the dial operation.

2. The tray supply device according to claim 1, characterized in that: The first tray mechanism and the second tray mechanism are coaxially arranged, and the second tray mechanism is arranged inside the first tray mechanism, so that the first tray mechanism is arranged below the second tray mechanism; the tray supply device also includes a hinge shaft portion, which includes an inner hinge shaft (1) and an outer hinge shaft (3) arranged concentrically, and the swing-off component of the first tray mechanism is hingedly arranged through the outer hinge shaft (3), and the swing-off component of the second tray mechanism is hingedly arranged through the inner hinge shaft (1).

3. The tray supply device according to claim 1, characterized in that: It also includes a driving mechanism for driving the first tray mechanism and the second tray mechanism, including a cam group consisting of a motor (7), a first cam (9) and a second cam (20) fixed to the motor output shaft, a third pull rod (17) and a first pull rod (4) for respectively controlling the first tray mechanism and the second tray mechanism to rotate around their hinge axes, and the other ends of the first pull rod (4) and the third pull rod (17) are rollingly connected to the cam group through a first bearing (6) and a second bearing (19) respectively.

4. The tray supply device according to claim 1, characterized in that: The invention also comprises an anti-drop mechanism, which comprises a control member (27) and a relay (28) for controlling the operation of the driving mechanism. The control member (27) extends below the stacked tray area. The control member (27) is hinged to the mechanism body. When the tray falls, the control member (27) is pressed downward. The other end of the control member abuts against the normally open contact of the relay (28), cutting off the power supply of the driving mechanism. The control member (27) returns to its original position when no external force is applied.

5. The tray supply device according to claim 3, characterized in that: A track bracket (30) is arranged on the side of the motor, and a track groove (31) is provided on the track bracket (30). The first pull rod (4) and the third pull rod (17) move up and down in the track groove (31) respectively.

6. The tray supply device according to claim 3 or 5, characterized in that: A fixing pin is arranged on the side of the motor, and a spring (32) is arranged between the fixing pin and the pull rod.

7. The tray supply device according to claim 3, characterized in that: It also includes a reset mechanism, including a control switch, the bottom of which is hinged with a roller (34), which contacts the surface of the second cam to ensure that after the power switch is turned off, the motor (7) still rotates and the first tray mechanism performs a restoring action.

8. The tray supply device according to claim 1, characterized in that: The connecting piece (10) of the first tray comprises: an insert plate (41) and a connecting arm (11); the connecting arm (11) is fixedly connected to the outer hinge shaft; an adjustment hole is provided at the bottom of the connecting arm (11); and the insert plate (41) is fixed through the adjustment hole.

Images