A plastic basket centrifugal spin-drying apparatus

Abstract

The application discloses a kind of plastic basket centrifugal spin-drying equipment, it is related to centrifugal drying technical field, including centrifugal component, supporting component and back to normal component, back to normal component includes sleeve fixedly connected with respect to base, and inner cylinder is slidably and rotatably arranged on sleeve, inner cylinder is axially slidably and circumferentially rotatably arranged with respect to sleeve, first elastic member is arranged between inner cylinder and sleeve, second elastic member is arranged between inner cylinder and sleeve, sliding slot is formed on the inner wall of inner cylinder, sliding slot includes straight slot, helical groove and circular groove, the bottom of helical groove is communicated with straight slot, and the top is communicated with circular groove, and the lateral side of movable column is provided with protrusion, and the protrusion moves along sliding slot.The plastic basket centrifugal spin-drying equipment provided in the application is provided with back to normal component, and the orientation of the plastic basket stopped under the driving of centrifugal component after centrifugal spin-drying is controllable, so that the spun plastic basket can be smoothly removed from the turntable, and the centrifugal component is driven by ordinary servo motor, without the need for cruise positioning motor, to reduce cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of centrifugal drying, in particular to a plastic basket centrifugal spin-drying equipment. BACKGROUND

[0002] The work load of recycling and cleaning plastic baskets for transporting agricultural and pastoral products is very large. The traditional plastic baskets of agricultural and pastoral products are generally dried by natural air drying (very long time-consuming and large area occupation), hot air drying (long time-consuming and high energy consumption) and other methods after being cleaned by manual or equipment. At present, a plastic basket spin-drying equipment for quickly centrifuging and drying the cleaned plastic baskets has been developed.

[0003] For example, an invention patent with the title of "a plastic basket spin-drying machine" with the publication number CN113758160A, which includes a spin-drying device, the spin-drying device includes a lifting mechanism for driving the plastic basket to move up and down, the upper part of the lifting mechanism is installed with a lower pressing turntable device, the lower end of the lifting mechanism is provided with a spin-drying turntable device corresponding to the lower pressing turntable device in an up-down manner. A side pushing device is installed on both sides of the upper end of the spin-drying device, the lifting mechanism is arranged between the side pushing devices on both sides, a pushing plate for pushing the plastic basket forward is arranged on the side pushing device, first supporting plates for supporting the plastic basket are arranged at both ends of the lower part of the side pushing device, and the lifting mechanism is arranged between the first supporting plates at both ends and corresponds to the first supporting plates. The lower pressing turntable device is pressed by the lifting mechanism, so that the plastic basket is pressed on the spin-drying turntable device, the plastic basket is rotated by the spin-drying turntable device, so that the water on the plastic basket is separated from the plastic basket under the action of centrifugal force, thereby achieving the drying effect. The overall structure occupies relatively less space, does not need to be dried, is environmentally friendly and energy-saving; the plastic basket is pushed to the lifting mechanism by the pushing plate for spin-drying, and the conveying is convenient.

[0004] In the above-mentioned patent, when the spin-drying turntable device stops after the plastic basket is rotated and spin-dried, the orientation of the plastic basket cannot be controlled, and the orientation of the plastic basket may not be consistent with the orientation before rotation, which causes the plastic basket to deviate and be stuck during the process of pushing the spin-dried plastic basket to the discharge conveying frame by the side pushing device. Although the cruise positioning motor cooperates with at least one pair of photoelectric sensors in the prior art to accurately control the orientation after stopping, the cost of the cruise positioning motor is much higher than that of the ordinary servo motor. SUMMARY

[0005] The purpose of the present application is to provide a plastic basket centrifugal spin-drying equipment to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present application provides the following technical scheme: A plastic basket centrifugal spin-drying device, comprising a centrifugal assembly and a supporting assembly, the centrifugal assembly comprising a first driving unit and a profiling tool clamp, the driving unit being arranged on a frame and used to drive the profiling tool clamp to rotate; the supporting assembly comprising a base, a movable column, a rotary table and a second driving unit, the movable column being movably arranged relative to the base, the second driving unit being used to drive the movable column to ascend and descend relative to the base, the rotary table being fixedly connected to the movable column and located directly below the profiling tool clamp; further comprising a returning assembly, the returning assembly comprising a sleeve fixedly connected to the base, an inner cylinder being slidably and rotatably arranged on the sleeve, the inner cylinder having a first station at the highest position in the axial sliding stroke relative to the sleeve, the inner cylinder having a second station in the circumferential rotation stroke relative to the sleeve, the second station being such that a first limiting block on the inner cylinder abuts against a second limiting block on the sleeve, a first elastic member being arranged between the inner cylinder and the sleeve, the first elastic member driving the inner cylinder to slide to the first station in the process of restoring deformation, a second elastic member being arranged between the inner cylinder and the sleeve, the second elastic member driving the inner cylinder to rotate to the second station in the process of restoring deformation, a sliding groove being formed in the inner wall of the inner cylinder, the sliding groove comprising a straight groove, a spiral groove and a circular groove, the bottom of the spiral groove being communicated with the straight groove, the top being communicated with the circular groove, a protrusion being arranged on the circumferential side of the movable column, the protrusion moving along the sliding groove.

[0007] Further, the first elastic member is a compression spring, the lower end of the compression spring abutting against the inner bottom of the sleeve, and the upper end abutting against the bottom of the inner cylinder.

[0008] Further, the second elastic member is a torsion spring, the torsion spring being sleeved on the inner cylinder, one end of the torsion spring being fixedly connected to the inner cylinder, and the other end being vertically movably inserted into the sleeve.

[0009] Further, the protrusion is a rolling ball embedded on the circumferential side of the movable column, the rolling ball being rollingly matched with the sliding groove.

[0010] Further, the number of the spiral grooves is one.

[0011] Further, the number of the spiral grooves is two, and the two spiral grooves are circumferentially distributed in a circular array along the inner cylinder.

[0012] Further, the communication positions of the two spiral grooves and the circular groove are both arc-shaped openings, and the two openings are connected.

[0013] Further, the plastic basket on the rotary table is clamped and matched with the rotary table.

[0014] Further, the first driving unit comprises a servo motor, a speed reducer and a shaft coupling, the power output by the servo motor being transmitted to the profiling tool clamp through the shaft coupling after being decelerated by the speed reducer.

[0015] Further, the second driving unit comprises a hydraulic cylinder arranged on the base, and a power output end of the hydraulic cylinder is coaxially and rotationally connected with the bottom of the movable column.

[0016] In the above technical solution, the plastic basket centrifugal spin-drying device provided by the application is provided with a returning assembly, and the orientation of the plastic basket when it is stopped after being spun and dried by the centrifugal assembly is controllable, so that the spun and dried plastic basket can be smoothly removed from the rotating table, and the centrifugal assembly is driven by a common servo motor, without the need of a cruise positioning motor, thereby reducing the cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 The structure schematic diagram of the centrifugal spin-drying provided by the embodiment of the present application is shown in the figure.

[0019] Figure 2 The structure sectional view of the centrifugal spin-drying provided by the embodiment of the present application is shown in the figure.

[0020] Figure 3 The structure enlarged view of A in the figure provided by the embodiment of the present application is shown in the figure. Figure 2

[0021] Figure 4 The structure sectional view before or after the work of the embodiment of the present application is shown in the figure.

[0022] Figure 5 The structure enlarged view of B in the figure provided by the embodiment of the present application is shown in the figure. Figure 4

[0023] Figure 6 The structure schematic diagram of the returning assembly provided by the embodiment of the present application is shown in the figure.

[0024] Figure 7 The structure sectional view of the returning assembly provided by the embodiment of the present application is shown in the figure.

[0025] Figure 8 The structure sectional view of the returning assembly provided by another embodiment of the present application is shown in the figure.

[0026] Explanation of reference signs:

[0027] ​​1, centrifugal assembly; 1.1, first driving unit; 1.2, profiling tool clamp; 2, supporting assembly; 2.1, base; 2.2, movable column; 2.3, rotary table; 2.4, second driving unit; 3, returning assembly; 3.1, sleeve; 3.2, inner cylinder; 3.3, first limiting block; 3.4, second limiting block; 3.5, first elastic member; 3.6, second elastic member; 3.7, straight slot; 3.8, spiral slot; 3.9, circular slot; 3.10, protrusion. DETAILED DESCRIPTION

[0028] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0029] Please refer to Figures 1-8 The plastic basket centrifugal spin-drying equipment provided by the embodiment of the present application comprises a centrifugal assembly 1 and a supporting assembly 2. The centrifugal assembly 1 comprises a first driving unit 1.1 and a profiling tool clamp 1.2. The driving unit is arranged on a frame and is used to drive the rotation of the profiling tool clamp 1.2. The profiling tool clamp 1.2 is configured according to the shape of the plastic basket and can tightly fit the plastic basket. The supporting assembly 2 comprises a base 2.1, a movable column 2.2, a rotary table 2.3 and a second driving unit 2.4. The movable column 2.2 is movably arranged relative to the base 2.1. The second driving unit 2.4 is used to drive the lifting of the movable column 2.2 relative to the base 2.1. The rotary table 2.3 is fixedly connected to the movable column 2.2 and is located directly below the profiling tool clamp 1.2. The plastic basket on the rotary table 2.3 is in clamping cooperation with the rotary table 2.3. For example, the bottom of the plastic basket is provided with a groove, and the rotary table 2.3 is provided with a protrusion that can be clamped into the groove. The returning assembly 3 is further arranged. The returning assembly 3 comprises a sleeve 3.1 that is fixedly connected to the base 2.1. An inner cylinder 3.2 is slidably and rotatably arranged on the sleeve 3.1. The inner cylinder 3.2 has a first station at the highest position in the axial sliding stroke relative to the sleeve 3.1. The inner cylinder 3.2 has a second station in the circumferential rotating stroke relative to the sleeve 3.1, so that the first limiting block 3.3 on the inner cylinder 3.2 abuts against the second limiting block 3.4 on the sleeve 3.1. A first elastic member 3.5 is arranged between the inner cylinder 3.2 and the sleeve 3.1. The first elastic member 3.5 drives the inner cylinder 3.2 to slide to the first station in the process of restoring the deformation. A second elastic member 3.6 is arranged between the inner cylinder 3.2 and the sleeve 3.1. The second elastic member 3.6 drives the inner cylinder 3.2 to rotate to the second station in the process of restoring the deformation. A sliding groove is formed in the inner wall of the inner cylinder 3.2. The sliding groove comprises a straight slot 3.7, a spiral slot 3.8 and a circular slot 3.9. The bottom of the spiral slot 3.8 communicates with the straight slot 3.7, and the top of the spiral slot 3.8 communicates with the circular slot 3.9. The length direction of the straight slot 3.7 is distributed along the vertical direction. The circular slot 3.9 is distributed along the circumferential direction of the inner cylinder 3.2. A protrusion 3.10 is arranged on the circumferential side of the movable column 2.2, and the protrusion 3.10 moves along the sliding groove.

[0030] In the above technical solution, the wet plastic basket is placed on the rotating table 2.3 by the conveying assembly, the mechanical arm or manually, the second driving unit 2.4 drives the movable column 2.2 to rise, first, the protrusion 3.10 on the movable column 2.2 moves along the straight groove 3.7, so that the movable column 2.2, the rotating table 2.3 and the plastic basket only move upwards and do not rotate, which facilitates the top of the plastic basket to smoothly enter the profiling fixture 1.2; as the movable column 2.2 continues to rise, the protrusion 3.10 enters the spiral groove 3.8 and moves along the spiral groove 3.8, during which the movable column 2.2, the rotating table 2.3, the plastic basket and the profiling fixture 1.2 rotate, and due to the elastic force of the second elastic member 3.6, the inner cylinder 3.2 and the sleeve 3.1 do not rotate or only rotate a small amount; until the movable column 2.2 rises to the rotating table 2.3 and the plastic basket is completely pressed into the profiling fixture 1.2, at this time the protrusion 3.10 just enters the circular groove 3.9; then the first driving unit 1.1 drives the profiling fixture 1.2 to rotate, driving the plastic basket to rotate together with the rotating table 2.3 and the movable column 2.2, and the protrusion 3.10 rotates in the circular groove 3.9 to centrifugally dry the plastic basket.

[0031] When the plastic basket is centrifuged under the driving of the centrifugal assembly 1, the first driving unit 1.1 stops driving the rotation of the plastic basket, and the rotating plastic basket starts to decelerate. Before the plastic basket completely stops rotating, the second driving unit 2.4 starts to control the descent of the movable column 2.2 and the turntable 2.3. If the protrusion 3.10 in the circular groove 3.9 is aligned with the upper end of the spiral groove 3.8 at this time, the protrusion 3.10 directly enters the spiral groove 3.8. If the protrusion 3.10 in the circular groove 3.9 is not aligned with the upper end of the spiral groove 3.8 at this time, the protrusion 3.10 will press down the inner cylinder 3.2, and the inner cylinder 3.2 will overcome the elastic force of the first elastic member 3.5 to move downward relative to the sleeve 3.1 to adapt to the downward movement of the movable column 2.2. When the protrusion 3.10 on the rotating movable column 2.2 is aligned with the upper end of the spiral groove 3.8, the protrusion 3.10 enters the spiral groove 3.8, and the first elastic member 3.5 moves the movable column 2.2 upward to reset to the first station. After the protrusion 3.10 enters the spiral groove 3.8, since the plastic basket, the turntable 2.3 and the movable column 2.2 still have rotational inertia at this time, the inner cylinder 3.2 rotates relative to the sleeve 3.1, and the elastic force of the second elastic member 3.6 on the one hand hinders the continuous rotation of the inner cylinder 3.2, so that the movable column 2.2, the turntable 2.3 and the plastic basket are quickly braked and stopped, and on the other hand, the inner cylinder 3.2 rotates relative to the sleeve 3.1 in the opposite direction to the first limit block 3.3, i.e. the second station, so that the orientation of the plastic basket after stopping rotating is the same as that before starting rotating or 180 degrees reversed (for the plastic basket with symmetrical structure). Finally, the protrusion 3.10 enters the straight groove 3.7 and moves to the bottom of the straight groove 3.7, and the plastic basket is completely separated from the direction tool clamp. At this time, the centrifuged plastic basket can be removed from the turntable 2.3.

[0032] The plastic basket centrifugal drying device provided by the application sets a return assembly 3. After the plastic basket is centrifuged under the driving of the centrifugal assembly 1, the orientation of the plastic basket after stopping rotating is controllable, which facilitates the removal of the centrifuged plastic basket from the turntable 2.3. The centrifugal assembly 1 is driven by a common servo motor, and a cruise positioning motor is not required, thereby reducing the cost.

[0033] Specifically, the protrusion 3.10 can be a fixed structure fixedly connected to the periphery of the movable column 2.2, and the protrusion 3.10 is in sliding cooperation with the sliding groove. As a preferred technical solution, the protrusion 3.10 is a rolling ball rollingly embedded on the periphery of the movable column 2.2, and the rolling ball is in rolling cooperation with the sliding groove, which can greatly reduce the frictional resistance between the protrusion 3.10 and the sliding groove, especially the resistance between the protrusion 3.10 and the spiral groove 3.8. Further preferably, the positions of the protrusion 3.10 and the sliding groove can be exchanged, i.e. the protrusion 3.10 is arranged on the inner wall of the inner cylinder 3.2, and the sliding groove is arranged on the periphery of the movable column 2.2.

[0034] As a preferred technical scheme of the present application, the first elastic member 3.5 is a compression spring, the lower end of the compression spring abuts against the inner bottom of the sleeve 3.1, and the upper end abuts against the bottom of the inner cylinder 3.2.

[0035] As a preferred technical scheme of the present application, the second elastic member 3.6 is a torsion spring, the torsion spring is sleeved on the inner cylinder 3.2, one end of the torsion spring is fixedly connected with the inner cylinder 3.2, and the other end is vertically movably inserted into the sleeve 3.1.

[0036] As a preferred technical scheme of the present application, the first driving unit 1.1 comprises a servo motor (or a servo motor), a speed reducer and a shaft coupling, the power output by the servo motor is transmitted to the profiling tool fixture 1.2 through the shaft coupling after being decelerated by the speed reducer.

[0037] As a preferred technical scheme of the present application, the second driving unit 2.4 comprises a hydraulic cylinder arranged on the base 2.1, the power output end of the hydraulic cylinder is coaxially rotatably connected with the bottom of the movable column 2.2, and further, the hydraulic cylinder can be replaced by a mechanism outputting linear reciprocating motion such as a pneumatic cylinder or an electric push rod.

[0038] As a preferred technical scheme of the present application, the number of the spiral grooves 3.8 is one, so that the orientation of the plastic basket after stopping rotation is completely consistent with the orientation before starting rotation.

[0039] In another embodiment of the present application, the number of the spiral grooves 3.8 is two, the two spiral grooves 3.8 are circumferentially arranged in a circular array along the circumference of the inner cylinder 3.2, so that the protrusion 3.10 on the movable column 2.2 is more easily inserted into the spiral groove 3.8 when the plastic basket starts to descend, and only applies to plastic baskets with symmetrical structures, and there are two cases that the orientation after stopping rotation is completely consistent with the orientation before starting rotation or is 180 degrees turned around.

[0040] As a further preferred technical scheme of the present embodiment, the communication portions of the two spiral grooves 3.8 and the circular groove 3.9 are both arc-shaped openings, the two openings are connected, and the opening is the transition section of the circular groove 3.9 and the corresponding spiral groove 3.8, so that the protrusion 3.10 on the movable column 2.2 is more easily inserted into the spiral groove 3.8 when the plastic basket starts to descend.

[0041] In the present application, the first driving unit 1.1 of the centrifugal assembly 1 and the base 2.1 of the supporting assembly 2 are both arranged on a rack (not shown in the figure), and an annular cover is fixedly arranged on the rack, the annular cover can cover the profiling tool fixture 1.2 and has a protection effect, and a transparent shell is arranged on the rack for collecting water splashed out during centrifugation of the plastic basket, and the transparent shell can be made of transparent glass or transparent plastic material, so that the internal condition can be observed.

[0042] The foregoing merely illustrates some exemplary embodiments of the application, and no doubt numerous modifications and alterations thereto will be apparent to those skilled in the art. Accordingly, the above description is intended for purposes of illustration only and should not be construed as limiting the scope of the application.

Claims

1. A centrifugal drying device for plastic crates, characterized in that, It includes a centrifugal assembly and a support assembly. The centrifugal assembly includes a first drive unit and a contouring fixture. The drive unit is mounted on the frame and is used to drive the contouring fixture to rotate. The support assembly includes a base, a movable column, a turntable, and a second drive unit. The movable column is movably arranged relative to the base, and the second drive unit is used to drive the movable column to rise and fall relative to the base. The turntable is fixedly connected to the movable column and located directly below the contouring tooling fixture. It also includes a return assembly, which includes a sleeve fixedly connected to a base. An inner cylinder is slidably and rotatably mounted on the sleeve. During the axial sliding stroke of the inner cylinder relative to the sleeve, there is a first working position at the highest position. During the circumferential rotation stroke of the inner cylinder relative to the sleeve, there is a second working position where a first limiting block on the inner cylinder abuts against a second limiting block on the sleeve. A first elastic element is provided between the inner cylinder and the sleeve. The process of the first elastic element restoring its deformation drives the inner cylinder to slide to the first working position. A second elastic element is provided between the inner cylinder and the sleeve. The process of the second elastic element restoring its deformation drives the inner cylinder to rotate to the second working position. A sliding groove is provided on the inner wall of the inner cylinder. The sliding groove includes a straight groove, a spiral groove, and a circular groove. The bottom of the spiral groove is connected to the straight groove, and the top is connected to the circular groove. A protrusion is provided on the periphery of the movable column. The protrusion moves along the sliding groove. When the work begins, the plastic basket is placed on the turntable 2.

3. The second drive unit 2.4 drives the movable column 2.2 to rise. First, the protrusion 3.10 on the movable column 2.2 moves along the straight groove 3.7, so that the movable column 2.2, the turntable 2.3 and the plastic basket only move upward and do not rotate, so that the top of the plastic basket can smoothly enter the contour tooling fixture 1.2; as the movable column 2.2 continues to rise; The protrusion enters the spiral groove and moves along it. During this process, the movable column, turntable, plastic basket, and contouring fixture rotate. However, due to the elastic force of the second elastic element, the inner cylinder and sleeve do not rotate or only rotate slightly. The protrusion enters the circular groove just as the movable column rises to the turntable and presses the plastic basket completely into the contouring fixture. Then, the first drive unit drives the contouring fixture to rotate, causing the plastic basket, turntable, and movable column to rotate together. The protrusion rotates in the circular groove, centrifugally drying the plastic basket. After the plastic crate is centrifuged and spun dry by the centrifugal assembly, the first drive unit stops driving the plastic crate to rotate, and the rotating plastic crate begins to decelerate. Before the plastic crate completely stops rotating, the second drive unit begins to control the lowering of the movable column and turntable. If the protrusion in the circular groove is aligned with the upper end of the spiral groove at this time, the protrusion directly enters the spiral groove. If the protrusion in the circular groove is not aligned with the upper end of the spiral groove at this time, the protrusion will press down on the inner cylinder. The inner cylinder overcomes the elastic force of the first elastic element and moves down relative to the sleeve to adapt to the downward movement of the movable column. Until the protrusion on the rotating movable column is aligned with the upper end of the spiral groove, the protrusion enters the spiral groove, and the first elastic element will cause the movable column to... Move the plastic basket to the first station; after the protrusion enters the spiral groove, the plastic basket, turntable and movable column still have rotational inertia, which will cause the inner cylinder to rotate relative to the sleeve. The elastic force of the second elastic element will, on the one hand, prevent the inner cylinder from continuing to rotate, causing the movable column, turntable and plastic basket to brake and stop quickly. On the other hand, it will cause the inner cylinder to rotate in the opposite direction relative to the sleeve until it abuts against the first limit block, i.e., the second station. This will ensure that the plastic basket is in the same position as before it started rotating or turns 180 degrees after it stops rotating. Finally, the protrusion enters the straight groove and moves to the bottom of the straight groove. The plastic basket is completely removed from the directional tooling fixture. At this time, the centrifugally dried plastic basket can be removed from the turntable.

2. The centrifugal drying device for plastic baskets according to claim 1, characterized in that, The first elastic element is a compression spring, with its lower end abutting against the inner bottom of the sleeve and its upper end abutting against the bottom of the inner cylinder.

3. The centrifugal drying device for plastic baskets according to claim 1, characterized in that, The second elastic element is a torsion spring, which is sleeved on the inner cylinder. One end of the torsion spring is fixedly connected to the inner cylinder, and the other end is vertically movably inserted into the sleeve.

4. A centrifugal drying device for plastic baskets according to claim 1, characterized in that, The protrusion is a ball bearing that is rolled and embedded on the periphery of the movable column, and the ball bearing rolls and engages with the groove.

5. A centrifugal drying device for plastic baskets according to claim 1, characterized in that, The number of spiral grooves is 1.

6. A centrifugal drying device for plastic baskets according to claim 1, characterized in that, There are two spiral grooves, which are arranged in a circular array along the circumference of the inner cylinder.

7. A centrifugal drying device for plastic baskets according to claim 6, characterized in that, The connection points between the two spiral grooves and the circular groove are both arc-shaped openings, and the two openings intersect.

8. A centrifugal drying device for plastic baskets according to claim 1, characterized in that, The plastic basket on the turntable engages with the turntable.

9. A centrifugal drying device for plastic baskets according to claim 1, characterized in that, The first drive unit includes a servo motor, a reducer, and a coupling. The power output by the servo motor is reduced by the reducer and then transmitted to the contour tooling fixture through the coupling.

10. A centrifugal drying device for plastic baskets according to claim 1, characterized in that, The second drive unit includes a hydraulic cylinder mounted on the base, with the power output end of the hydraulic cylinder being coaxially rotatably connected to the bottom of the movable column.

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