Self-adapting spin-drying inner liner and spin-dryer

Abstract

This invention discloses an adaptive spin-drying liner and a spin-dryer. The adaptive spin-drying liner includes a supporting part and a connecting part. The connecting part extends along a first direction and sequentially forms a smaller gap end and a larger gap end. The supporting part is fixed to the smaller gap end, which can be held in the initial position and the working position radially. In the initial position, the object can remain stationary without the aid of any solid object before spin-drying. The support groove opens upward and the suspension groove opens downward, allowing for easy observation of the object's posture after placement or suspension, and adjustments can be made at any time if the posture is incorrect. In the working position, the object is supported by the inner side of the connecting part under centrifugal force, resulting in a large contact area and preventing irreversible plastic deformation due to material properties (such as incompletely cured resin) during spin-drying.

Description

Technical Field

[0001] This invention relates to the field of water removal from the surface or interior of an object, and more particularly to an adaptive spin-drying liner and a spin-dryer. Background Technology

[0002] In industrial and consumer settings, when it is often necessary to remove water from the surface or interior of an object (i.e., a solid object to be dried, hereinafter referred to as the object), the methods typically employed are as follows: Air drying involves using a fan to blow air or other inert gas onto the surface and / or interior of an object to cause water to evaporate quickly, as in the Chinese utility model patent with authorization announcement number "CN212538543U". Drying, since the rate of moisture evaporation is positively correlated with the ambient temperature, can be achieved by heating the air or inert gas on the basis of the above-mentioned air drying to obtain a relatively faster evaporation rate (air drying), as in Chinese invention patent application with publication number "CN114892379A"; Centrifugal spin drying utilizes a spin-drying drum with water passages. The object to be dried is placed inside the drum, and a power unit (usually a motor) drives the drum to rotate. This causes the object inside the drum to be subjected to centrifugal force, which gradually causes water to be ejected from the surface and interior of the object and discharged through the water passages. This method is well-known to consumers and is used in household washing machines (including top-loading and front-loading washing machines). Another example is the Chinese utility model patent with authorization announcement number "CN218096903U".

[0003] Centrifugal spin-drying is widely used because it can achieve significant centrifugal force and spin-drying effect within a limited space. However, the relative displacement between the object and the spin-drying drum, or between objects themselves, can lead to collisions, compression, friction, and excessive stretching, resulting in irreversible overall or partial deformation, surface scratches, or even damage. The principle behind this is that when an object is placed directly inside the spin-drying drum, its posture is random and cannot be guaranteed. At least during acceleration and deceleration, the object may experience relative displacement with respect to the spin-drying drum, leading to compression, collisions, and friction. To address these adverse effects, Chinese utility model patent CN214077265U uses a rigid body (filter) to press down on the object, thus fixing it to the spin-drying drum and preventing relative displacement between the object and the drum, or between objects themselves. However, the pressing force between the rigid body and the object still exists, and this force can still cause the aforementioned irreversible overall or partial deformation, surface scratches, or even damage.

[0004] In particular, due to the material properties of the object itself (as disclosed in CN111284009A and CN109016496A, the resin is not fully cured and shaped immediately after 3D printing. In order to cure it completely, heat treatment is required. However, before heat treatment, the uncured resin adhering to the surface of the 3D printed product needs to be cleaned and the product is spun dry), the mechanical pressing of this rigid body will still cause deformation due to being squeezed or collided and unable to return to its original shape. If the material itself is relatively soft, it will also cause the above-mentioned friction to form scratches, or even cause the object to be excessively stretched or squeezed in certain areas, resulting in deformation and damage. Of course, in order to consider the efficiency of the spun dryer, multiple objects are often put into the spun dryer at the same time. The collision, entanglement and friction between these multiple objects will further aggravate the above-mentioned deformation, scratches, local deformation and even damage.

[0005] Therefore, in order to solve the above problems, embodiments of the present invention provide an adaptive spin-drying liner and a spin-dryer. Summary of the Invention

[0006] This invention provides an adaptive spin-drying liner and a spin-dryer, which at least solves the problem of fixing the posture of an object by centrifugal force during spin-drying without the need to apply pressure with rigid components.

[0007] A first aspect of the present invention provides an adaptive spin-drying liner, comprising: Supporting part; and The connecting portion extends along a first direction and sequentially forms a smaller gap end and a larger gap end, the first direction not being in the rotation plane of the spin-drying drum. The supporting portion is fixed to the smaller gap end, and the smaller gap end can be held radially in the initial position and the working position, wherein: In the initial position, the bearing portion extends obliquely inward to form an upward-opening support groove or a downward-opening suspension groove, and the gap between the connecting portion and the spin-drying cylinder gradually increases from the first direction. At the operating position, a power unit sequentially drives the spin-drying cylinder to rotate around the rotation axis, drives the adaptive spin-drying liner to rotate, and at least partially reduces the gap, with the degree of reduction of the gap gradually increasing along the first direction.

[0008] A second aspect of the present invention provides a spin dryer comprising any of the above-mentioned components: Power unit; The spin dryer rotates around the rotation axis under the drive of the power unit; An adaptive spin-drying liner reduces the gap at least partially by means of the centrifugal force generated by the rotation of the spin-drying drum.

[0009] The beneficial effects of the embodiments of the present invention include at least the following: In the initial position, when the power unit drives the spin-drying drum to start rotating, the object can be placed on the upward-opening support groove (or suspended from the hanging groove by a flexible rope, etc.). With the support part extending obliquely upward and inward, an inclined support slope is formed. Under the support of this slope, one surface of the object (such as the sole of a shoe if the object to be washed) can be attached to the inner wall of the spin-drying drum. The object can remain stationary without the need for any solid support before the spin-drying operation. The gap between the connecting part and the spin-drying drum provides space for the connecting part to move outward under the action of centrifugal force, thus allowing the connecting part to move outward under the action of centrifugal force. At the same time, since the gap gradually increases from the smaller gap end to the larger gap end, the maximum distance that the connecting part can move is different. Taking the support groove as an example, the larger gap end and the bearing part are at the bottom, and the smaller gap end is at the top. At this time, when the centrifugal force increases to a sufficiently large extent, the entire connecting part is allowed to be tightly attached to the spin-drying drum to obtain the maximum centrifugal force and ensure the spin-drying effect. The support groove opens upwards and the suspension groove opens downwards, thus providing space for objects to be placed and removed in the vertical direction, making it convenient to put or take objects out. It also provides the user with a field of view, making it easy to observe the posture of the object after it is placed or suspended, and to adjust it at any time if the posture is not correct. In the working position, the object is supported by the inner side of the connecting part under the action of centrifugal force, with a large contact area, avoiding irreversible plastic deformation due to material properties (such as incompletely cured resin) during the spin-drying operation. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram illustrating the working principle of one embodiment of a spin dryer; Figure 2 This is a schematic diagram of an embodiment of an adaptive spin-drying liner, uniformly arranged around the rotation axis X in the circumferential direction; Figure 3 yes Figure 1 Top view; Figure 4 yes Figure 3 Sectional view of mid-section AA; Figure 5 This is a three-dimensional structural diagram of the adaptive spin-drying liner from a first-view perspective, wherein: the liner in the first direction D is broken into two parts at approximately the middle position; Figure 6 yes Figure 5 A schematic diagram of the three-dimensional structure from a second-person perspective; Figure 7 yes Figure 5 Top view; Figure 8 yes Figure 7 Sectional view of mid-section BB; Figure 9 This is a structural schematic diagram of another embodiment of a spin dryer; Figure 10 yes Figure 9 Sectional view of the mid-section CC; Figure 11 yes Figure 9 A schematic diagram of the three-dimensional structure after removing the outer shell and top cover; Figure 12 yes Figure 11 A three-dimensional structural diagram after the outer cylinder has been removed, showing the initial position; Figure 13 yes Figure 12 Sectional view of mid-section DD; Figure 14 This is a schematic diagram of an embodiment of an adaptive spin-drying liner, uniformly arranged around the rotation axis X in the circumferential direction; Figure 15 yes Figure 14 A schematic diagram of the three-dimensional structure from a second-person perspective; Figure 16 This is a three-dimensional structural schematic diagram of an embodiment of an adaptive spin-drying liner, in its initial position; Figure 17 yes Figure 16 A schematic diagram of the three-dimensional structure from a second-person perspective; Figure 18 yes Figure 12 It changes to its working position under the action of centrifugal force; Figure 19 yes Figure 18 Sectional view of section EE; Figure 20 Figure 18 A schematic diagram of the adaptive spin-drying liner in its working position; Figure 21 It constitutes Figure 20 A schematic diagram of the structure of one of a plurality of adaptive spin-drying liners; Figure 22 yes Figure 21 A schematic diagram of the three-dimensional structure from a second-person perspective; Figure 23 This is a structural schematic diagram of an embodiment of a suspension operation; Figure 24 yes Figure 23 A structural diagram from a second perspective; Figure 25 yes Figure 24 Sectional view of mid-section FF; Figure 26 This is a schematic diagram illustrating the working principle of the adaptive spin-drying liner as an integral structure. Figure 27 for Figure 26 A schematic diagram of the three-dimensional structure from a second-person perspective; Figure 28 for Figure 27 Sectional view of mid-section GG; Figure 29 This is a three-dimensional structural diagram of an embodiment of an adaptive spin-drying liner, which is an integral structure in its initial position, with the bearing portion forming a support groove; Figure 30 yes Figure 29 A schematic diagram of the structure of the adaptive spin-drying liner and spin-drying cylinder assembly, with the adaptive spin-drying liner located in the working position; Figure 31 for Figure 30 A schematic diagram of the three-dimensional structure from a second-person perspective; Figure 32 for Figure 31 Cross-sectional view of mid-section HH; Figure 33 A three-dimensional structural diagram of an embodiment of a spin-drying liner is shown, which is an integral structure in its initial position. Figure 34 This is a three-dimensional structural diagram of an embodiment of an adaptive spin-drying liner, which is an integral structure in its initial position, with the bearing portion forming a suspension groove; Figure 35 for Figure 34 A schematic diagram of the three-dimensional structure from a second-person perspective; Figure 36 for Figure 35 Sectional view of section II; Figure 37 A schematic diagram of the structure of the adaptive spin-drying liner installed on the spin-drying drum via the first elastic element and the second elastic element; Figure 38 A schematic diagram of a structure in which the adaptive spin-drying liner is installed on the spin-drying drum via a third elastic element; In the picture: 1. Adaptive spin-drying liner; 11. Supporting part; 111. Support groove; 112. Suspension groove; 12. Connecting part; 121. Larger gap end; 122. Smaller gap end; 123. Transverse groove; 124. Longitudinal groove; 125. Limiting protrusion; 126. Spin-drying chamber; 13. Cover; 2. Spin-dry drum; 21. Water passage hole; 3. Power unit; 31. Motor; 32. Drive pulley; 33. Transmission belt; 34. Driven pulley; 35. Flange; 4. Outer cylinder; 5. Drainage pipe; 6. Outer shell; 61. Outer cylinder support; 62. Motor support; 7. Level the feet; 8. Top cover; 91. First elastic element; 92. Second elastic element; 93. Third elastic element; S, plane of rotation; X, axis of rotation; G, clearance; D, first direction. Detailed Implementation

[0012] To make the technical problems solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0013] In the description of this invention, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0014] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0015] As described in the background art, in order to simultaneously achieve the following effects: objects can be easily placed in the initial state (the state before rotation), and the object can maintain a solid posture and remain relatively stable relative to the spin-drying drum during contact pressing without the aid of any rigid components in both the initial and operational states, the first aspect of this invention discloses an adaptive spin-drying liner 1, see [link to relevant documentation]. Figures 1 to 38 It includes a supporting part 11 and a connecting part 12. Wherein: Figures 1 to 8In the embodiment, the adaptive spin-drying liner 1 has two sections (one at the middle position along the first direction D) and multiple sections (specifically six) in the circumferential direction, and the adaptive spin-drying liner 1 is in the working position. Figures 9 to 22 In the embodiment, the adaptive spin-drying liner 1 is not segmented vertically (at the middle position along the first direction D) and has multiple circumferential sections (specifically eight). Figures 9 to 18 The adaptive spin-drying liner 1 is in its initial position. Figures 19 to 22 The adaptive spin-drying liner 1 is in the working position; Figures 23 to 25 The adaptive spin-drying liner 1 structure of the embodiment and Figures 9 to 22 The similarity is that the openings of the adaptive spin-drying liner 1 and the spin-drying cylinder 2 are both downward, that is, the bearing part forms a suspension groove 112. Figures 26 to 33 The adaptive spin-drying liner of this embodiment is an integral structure, wherein: the supporting part 11 forms a supporting groove 111. Figures 26 to 29 The initial position, Figures 30 to 33 For work location; Figures 34 to 36 The adaptive spin-drying liner of the embodiment is an integral structure, and... Figures 26 to 33 The difference is that the openings of the adaptive spin-drying liner 1 and the spin-drying cylinder 2 both face downwards, that is, the bearing part 11 forms a hanging groove 112; Figure 37 and Figure 38 The embodiment is a schematic diagram of the structure of the adaptive spin-drying liner 1 installed on the spin-drying drum through an elastic element.

[0016] See also Figure 10 , Figure 25 and Figure 36 The connecting portion 12 extends along the first direction D and sequentially forms a smaller gap end 122 and a larger gap end 121. The first direction D is not in the rotation plane S of the spin dryer 2 (perpendicular to the rotation axis X), thereby allowing the gap G between the connecting portion 12 and the spin dryer 2 to change in the depth direction (the direction of the rotation axis X of the spin dryer 2), thereby forming the aforementioned smaller gap end 122 and larger gap end 121.

[0017] The bearing part 11 is fixed to the smaller gap end 122, and the smaller gap end 122 in the radial direction (with a point on the rotation axis X of the spin-drying drum 2 as the center; at the same time, the following descriptions of "inward" and "outward" are also based on the rotation axis X of the spin-drying drum 2, that is, inward refers to the direction closer to the rotation axis X, and outward refers to the direction away from the rotation axis X) can be maintained in the initial position and the working position, wherein: In the initial position, the supporting portion 11 extends obliquely inward to form an upward-opening support groove 111 (e.g., Figures 1 to 8 , Figures 9 to 22 and Figures 26 to 33 (as shown) or a downward-facing hanging groove 112 (as shown) Figure 23 Figure 25 as well as Figures 34 to 36 As shown, the gap G between the connecting part 12 and the spin dryer 2 gradually increases from the smaller gap end 122 to the larger gap end 121; At the working position, a power unit 3 sequentially drives the spin-drying cylinder 2 to rotate around the rotation axis X, drives the adaptive spin-drying liner 1 to rotate, and reduces the gap G at least partially, and the degree of reduction of the gap G gradually increases along the first direction D.

[0018] In the initial position, when the power unit 3 drives the spin-drying drum 2 to start rotating, the object can be placed on the upward-opening support groove 111 (or suspended under the hanging groove 112 by a flexible rope, etc.). With the help of the bearing part 11 extending obliquely upward and inward, an inclined support slope is formed. Under the support of this slope, one surface of the object (such as the bottom of the shoe when the object to be cleaned is a shoe) can stick to the inner wall of the spin-drying drum 2. It can remain stationary without the help of any solid object before the spin-drying operation.

[0019] The gap G between the connecting part 12 and the spin-drying cylinder 2 provides space for the connecting part 12 to move outward under the action of centrifugal force, thereby allowing the connecting part 12 to move outward under the action of centrifugal force. At the same time, since the gap G gradually increases from the smaller gap end 122 to the larger gap end 121, the maximum distance that the connecting part 12 can move is different. Taking the support groove 111 as an example, the larger gap end 121 and the bearing part 11 are at the bottom, and the smaller gap end 122 is at the top. At this time, when the centrifugal force increases to a sufficiently large extent, the connecting part 12 is allowed to be completely pressed against the spin-drying cylinder 2 to obtain the maximum centrifugal force and ensure the spin-drying effect.

[0020] The internal spin-drying chamber 126 of the spin-drying cylinder 2 is basically cylindrical, thereby achieving maximum space utilization. By combining the gap G gradually increasing along the first direction D, it can be directly determined that the adaptive spin-drying liner 1 is generally a (hollow) frustum or an inverted frustum structure, or a part of the two divided along the circumferential direction.

[0021] When the adaptive spin-drying liner 1 is shaped like an inverted frustum, the smaller gap end 122 is located above the larger gap end 121; the supporting part 11 extends upward and inward to form a supporting groove 111. This structure is suitable for situations where objects are placed, such as shoes, and is especially suitable for 3D printed products (such as 3D printed shoes) that have been 3D printed but have not yet fully cured, as described in the background art. In this case, the openings of both the adaptive spin-drying liner 1 and the spin-drying cylinder 2 are upward, allowing for convenient operation from above.

[0022] When the adaptive spin-drying liner 1 is shaped like a frustum, the smaller gap end 122 is located below the larger gap end 121; the supporting part 11 extends downward and inward to form a hanging groove 112. At this time, there is space below the hanging groove 112 for easy access of objects. It is convenient to take, put, and observe from below the hanging groove 112. In other words, the openings of the adaptive spin-drying liner 1 and the spin-drying cylinder 2 are both set downward, allowing for convenient operation from below.

[0023] The adaptive spin-drying liner 1 is made of a porous material or has through holes that allow water to pass through. This ensures that during the spin-drying operation, water can quickly flow to the water passage holes 21 of the spin-drying cylinder 2 and flow out. The porous material can be a 3D-printed material with various crystal lattices, such as the applicant's previously filed patents CN111407040A, CN111438932A, and CN111418956A. Of course, other porous materials, such as polyurethane, can also be used, but for the sake of simplicity, they will not be listed one by one.

[0024] It should also be noted that the change in gap G with centrifugal force is due to adaptive adjustment, and this concept can be achieved through at least one of the following: Elastic deformation of the elastic element disposed between the connecting part 12 and the spin dryer 2; Elastic deformation of the connecting part 12.

[0025] The choice between using one method or both can be made flexibly based on actual requirements. For example, if the desired gap G is large and the elastic deformation of the connecting part 12 alone is insufficient to provide it, the elastic deformation of the elastic element can be added. Conversely, if the desired gap G can be achieved solely through the elastic deformation of the connecting part 12, then only the second method can be used. Of course, other considerations and selection methods are not listed here due to space limitations.

[0026] Furthermore, to further increase the deformation of the adaptive spin-drying liner 1 in its longitudinal section (the plane parallel to the rotation axis X), the inventors made the following design: a transverse groove 123 is provided on the outer side of the connecting part 12, extending circumferentially along the rotation axis X. During the movement from the initial position to the working position, the upper and lower sides of the transverse groove 123 are compressed under the action of centrifugal force, thereby gradually reducing the opening of the transverse groove 123. When the centrifugal force decreases or disappears, the transverse groove 123 returns to its initial position, thereby increasing its deformation. This provides a wider range of gap G adjustment to accommodate the spin-drying of large-sized objects. Simultaneously, this third method, along with the two methods mentioned above, can be chosen as one, two, or both. In particular, when only the second and third methods are used, only the material and structure of the adaptive spin-drying liner 1 itself need to be changed, avoiding the introduction of elastic components and their installation considerations. Especially since elastic components are often made of metal, and spin-drying is a humid environment, this humid environment can cause corrosion and failure of the metal elastic components, thus increasing their service life.

[0027] The corner positions of various parts and locations of the adaptive spin-drying liner 1, such as the transverse grooves 123, the junction position of the far end of the connecting part and the side, etc., can be made using straight lines (e.g. Figures 9 to 36 The embodiments shown can also employ smooth transitions such as arcs or parabolas (as shown in Figures 1 to 1). Figure 8 (In the embodiment), a smooth transition is used to avoid stress concentration and improve the fatigue resistance to repeated deformation.

[0028] Because the smaller gap end 122 requires less deformation than the larger gap end 121 to form a uniform gap G in the working position, the opening size of the transverse groove 123 gradually decreases from the larger gap end 121 to the smaller gap end 122. This ensures that the adaptive spin-drying liner 1 is cylindrical overall in the working position, avoiding the centrifugal force component caused by a conical shape forming on the inclined inner wall, and ensuring that the object does not move along the depth direction of the spin-drying cylinder in the working position.

[0029] Similar to the design of the transverse groove 123, in order to increase the radial deformation, a longitudinal groove 124 is provided on the outer side of the connecting part 12. The longitudinal groove 124 extends in a direction parallel to the rotation axis X. The longitudinal groove 124 gradually decreases in size from the initial position to the working position.

[0030] The elastic deformation of the connecting part 12, the transverse groove 123, and the longitudinal groove 124 mentioned above are all based on the fact that the adaptive spin-drying liner 1 is an elastomer.

[0031] In addition, the transverse groove 123 and the longitudinal groove 124 further facilitate the flow of water to the water passage hole 21 and then discharge.

[0032] If the adaptive spin-drying liner 1 is a rigid body (it does not deform under centrifugal force; strictly speaking, its deformation is negligible compared to the gap G), then an additional elastic element is used to achieve adaptive adjustment of the gap G with the centrifugal force. For the first method, see... Figure 37 The elastic element includes a first elastic element 91 between the larger gap end 121 and the spin-drying cylinder 2, and a second elastic element 92 between the smaller gap end 122 and the spin-drying cylinder 2; the first elastic element 91 and the second elastic element 92 deform to different degrees under centrifugal force (the deformation of the first elastic element 91 under the same centrifugal force is greater than that of the second elastic element 92). For the second structure, see [link to second structure]. Figure 38 The smaller gap end 122 is rotatably mounted (e.g., by adhesive) to the spin dryer 2 within the longitudinal section of the spin dryer 2; a third elastic element 93 is provided between the larger gap end 121 and the spin dryer 2.

[0033] With the aforementioned support portion 11, and under the action of centrifugal force, the object is radially positioned on the inner wall of the spin-drying drum. The curvature of the inner wall of the connecting portion 12 can, to a certain extent, resist the object from tilting forward (which may occur when decelerating) or backward (which may occur when accelerating). To avoid this tilting, the connecting portion 12 extends inward at the end opposite to the support portion 11 to form a cover portion 13. The connecting portion 12 has an inwardly extending limiting protrusion 125. Any two adjacent limiting protrusions 125 and the support portion 11 and the cover portion 13 between them define an inwardly opening spin-drying chamber 126.

[0034] By constructing the spin-drying chamber 126, any two adjacent limiting protrusions 125 limit the object from both sides, the cover 13 from above, the support 11 from below, and the connecting part 12 from the radially distal end, thereby ensuring its posture. Furthermore, the size of the spin-drying chamber 126 does not compress the space occupied by the object, whether in the initial or working position. Simultaneously, the limiting protrusions 125 are formed by the radially inward extension of the connecting part 12, i.e., they are part of the connecting part 12. When the connecting part 12 is made of an elastic body, the two limiting protrusions 125 in the same spin-drying chamber 126 will adaptively move closer together under centrifugal force. This closer movement further reduces the opening of the spin-drying chamber 126 until it is smaller than the outer contour of the object, strictly preventing the object from detaching from the opening, even in the extremely rare event of vibration or other factors during operation.

[0035] To simultaneously spin-dry multiple smaller objects, the spin-drying chambers 126 are evenly distributed in the circumferential direction; and / or, the spin-drying chambers 126 are at least one layer in the depth direction of the spin-drying cylinder 2. In particular, after the upper and lower layers are separated, the upper and lower parts of each spin-drying chamber 126 are sealed by the cover part 13 and the support part 11, respectively. At this time, the frustum or inverted frustum shape formed by the gradual increase of the gap G between the connecting part 12 and the spin-drying cylinder 2 along the first direction D allows for the proper placement and observation of the object's orientation.

[0036] As described above, one embodiment of the adaptive spin-drying liner 1 has a spin-drying chamber 126 constructed from limiting protrusions 125 on both sides, a cover 13 at the top, and a supporting part 11 at the bottom. It can be manufactured by injection molding, casting, forging, or other methods. It can also be manufactured by 3D printing. When manufactured as a single piece using 3D printing, the cover 13 and the supporting part 11, being positioned one above the other, both occupy a significant amount of material and have considerable weight. Therefore, support is required during printing, especially... Figures 4-8 The structure shown has a cover portion 13 and a support portion 11 that extend inwards more than the limiting protrusion 125. This increased extension requires more support, and if the overall printed size is large, few 3D printers can meet the requirements; even if they can, the printing cost increases dramatically. Therefore, to prepare the structure using 3D printing without increasing the printing support (which consumes material and wastes time), the inventors printed the adaptive spin-drying liner 1 in segments along the direction from the cover portion 13 to the support portion 11. The specific segmentation method can be any of the following: The cover 13 and part of the connecting part 12 are integrally formed by 3D printing, and the supporting part 11 and the remaining connecting part 12 are integrally formed by 3D printing (e.g. Figures 1 to 8 (As shown in the example). The cover 13, the connecting part 12 and the supporting part 11 are all integrally formed by 3D printing. The cover 13 or the support 11 and the connecting part 12 are integrally formed by 3D printing. Correspondingly, the support 11 or the cover 13 are integrally formed by 3D printing.

[0037] It should also be noted that the connection between the different sections can be achieved using connectors such as ropes or adhesives.

[0038] To further reduce the size of the adaptive spin-drying liner 1, multiple adaptive spin-drying liners 1 are evenly arranged circumferentially. The connection between these multiple liners can be achieved using connectors such as ropes or adhesive bonding.

[0039] Another embodiment of the adaptive spin-drying liner 1 is an integral structure, which does not have the above-mentioned upper and lower segmented or circumferentially divided form. This type of structure is more suitable for casting, especially lost foam casting (also known as lost foam casting, which is a new type of casting method in which paraffin or foam models similar in size and shape to the casting are bonded together to form a model cluster, coated with refractory coating and dried, buried in dry quartz sand and vibrated to form a shape, and poured under negative pressure to make the model vaporize, the liquid metal occupies the position of the model, and after solidification and cooling, a casting is formed).

[0040] It should also be noted that at the working position, the clearance G is reduced to 0, see [reference]. Figure 4 , Figure 19 and Figure 32 That is, the adaptive spin-drying liner 1 is closely attached to the inner wall of the spin-drying cylinder 2, the inner wall of the spin-drying cylinder 2 is vertical, and the rotation axis X is vertical, so as to ensure that the bearing part 11 extends outward to the maximum extent, obtains sufficient centrifugal force, and ensures the spin-drying effect.

[0041] In the working position, assuming the angle between the part corresponding to the object and the bearing part 11, and the part corresponding to the object and the connecting part 12 is 90°, the inner end of the bearing part 11 is horizontal or slightly bent downwards (e.g., the whole is bent in a straight line at 1-5°, or it can be bent in an arc). Figures 9 to 38 As shown, in this posture, the pressure of the object on the bearing part 11 is minimized to avoid deformation of the object under this pressure. At the same time, as mentioned above, although the object is confined within the spin-drying chamber 126, for ease of handling and to avoid squeezing the object, the spin-drying chamber 126 is definitely slightly larger than the outer contour of the object. At this time, a slight displacement of the object relative to the spin-drying cylinder 2 may occur (depending on how much the spin-drying chamber 126 is larger than the outer contour of the object). By minimizing this pressure, even if this slight displacement occurs, scratches are minimized or only extremely slight scratches are produced (which can be eliminated by subsequent polishing). This structure is particularly suitable for materials that undergo plastic deformation due to centrifugal force (such as the incompletely cured resin mentioned above).

[0042] In the working position, the inner end of the bearing part 11 can also be slightly bent upwards (e.g., the whole body is bent in a straight line at 1-5°, or it can be bent in an arc shape), such as Figures 1 to 8 As shown, in contrast to "horizontal or slightly downward bending", this design is specifically designed to increase the pressure and friction, so that the generated friction drives the object to rotate synchronously with the spin dryer 2 in a shorter time. Obviously, this structure is suitable for materials that will not undergo plastic deformation due to centrifugal force. Of course, this structure is also suitable for situations where the part of the object opposite to the support part 11 is warped in a direction away from the support part 11 to ensure that it does not contact the support part 11, and can also achieve the above-mentioned effect of reducing pressure and friction.

[0043] Of course, the adaptive spin-drying liner 1 can also have any position between the initial position and the working position, which can be adjusted by the elastic modulus and free length of the elastic element, or by the elastic modulus and free length of the adaptive spin-drying liner 1, or by the magnitude of the centrifugal force (rotation speed of the spin-drying drum 2, inner diameter of the spin-drying drum).

[0044] The driving force for the adaptive spin-drying liner 1 to rotate with the spin-drying drum 2 is, firstly, that in the initial position, the larger gap end 121 is fixed to the spin-drying drum 2 by a connector, which can be a bolt, screw, adhesive, etc. Due to the presence of gap G, the portion outside the larger end of the adaptive spin-drying liner 1 does not initially contact the spin-drying drum 2, but gradually expands outward as the centrifugal force increases until it tightly adheres to the inner wall of the spin-drying drum 2 to generate the aforementioned frictional force.

[0045] The adaptive spin-drying liner 1 is driven by two forces: firstly, the frictional force generated between the centrifugal connection 12 and the spin-drying drum 2 provides the rotational power for the adaptive spin-drying liner 1. The adaptive spin-drying liner 1 expands outwards under centrifugal force until it adheres tightly to the inner wall of the spin-drying drum 2. In particular, the adaptive spin-drying liner 1 is made of 3D-printed cured resin, and the inner wall of the finished spin-drying drum 2 (usually made of stainless steel) has a sufficient coefficient of friction, which enhances the driving force for rotation.

[0046] The second part of this invention discloses a spin dryer, which includes any of the aforementioned power unit 3, a spin-drying drum 2, and an adaptive spin-drying liner 1. The spin-drying drum 2 rotates about the rotation axis X under the drive of the power unit 3; the centrifugal force generated by the rotation of the spin-drying drum 2 at least partially reduces the gap G. This causes the adaptive spin-drying liner 1 and the object to transition from the initial position to the working position, completing the spin-drying operation.

[0047] One configuration of power unit 3, see [link to relevant documentation]. Figure 10 It includes a motor 31, a drive pulley 32, a transmission belt 33, a driven pulley 34, and a flange 35 connected in sequence. The flange 35 is fixed to the bottom of the spin dryer 2, which increases the force-bearing area of ​​the spin dryer 2, improves the rigidity of the spin dryer 2, and ensures the reliable operation of the spin dryer.

[0048] In addition, a transverse groove 123 is provided on the outer side of the connecting part 12, at least see Figure 10 , Figure 19 , Figure 25 , Figure 28 , Figure 32 and Figure 36 The spin-drying drum 2 is provided with a through water passage hole 21, and each transverse groove 123 corresponds to at least one water passage hole 21. Water is discharged along the transverse groove 123 → the water passage hole 21 corresponding to the transverse groove 123, which improves the water discharge efficiency and ensures the spin-drying effect.

[0049] See Figure 9 and Figure 10 Another embodiment of the spin dryer may include an outer cylinder 4, a drain pipe 5, and a top cover 8. The outer cylinder 4 covers the spin-drying cylinder 2 and is used to receive water flowing out through the water hole 21; the drain pipe 5 is installed on the outer cylinder 4 and is at least configured to drain water from the outer cylinder 4; the top cover 8 is openable and closable (e.g., hinged by a pivot) to cover the opening of the outer cylinder 4. A housing 6 is also fixedly installed outside the outer cylinder 4. When the openings of the spin-drying cylinder 2 and the outer cylinder 4 are facing upwards, the housing 6 also has an outer cylinder support 61 and a motor support 62 inside, which are used to support the outer cylinder 4 and the motor 31, respectively. At least three leveling feet 7 are installed at the bottom of the housing 6, evenly distributed around the rotation axis X. Four are shown in the figure, but other numbers are also possible.

[0050] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An adaptive spin-drying liner, characterized in that, include: Load-bearing part; as well as A connecting portion extends along a first direction and sequentially forms a smaller gap end and a larger gap end. This first direction is not in the plane of rotation of the spin-drying drum, thereby allowing the gap between the connecting portion and the spin-drying drum to change in the depth direction of the spin-drying drum. The supporting portion is fixed to the smaller gap end, which can be held radially in both an initial position and a working position, wherein: In the initial position, the bearing portion extends obliquely inward to form a support groove with an upward opening or a suspension groove with a downward opening, and the gap between the connecting portion and the spin-drying cylinder gradually increases along the first direction; At the operating position, a power unit sequentially drives the spin-drying cylinder to rotate around the rotation axis, drives the adaptive spin-drying liner to rotate, and at least partially reduces the gap, and the degree of reduction of the gap gradually increases along the first direction; The adaptive spin-drying liner is made of porous material or has through holes to allow water to pass through. The change in the gap with centrifugal force is achieved by at least one of the following: Elastic deformation of the elastic element disposed between the connecting part and the spin dryer; The elastic deformation of the connecting part.

2. The adaptive spin-drying liner according to claim 1, characterized in that, The smaller gap end is located above the larger gap end; The bearing portion extends upward and inward to form the support groove.

3. The adaptive spin-drying liner according to claim 1, characterized in that, The smaller gap end is located below the larger gap end; The supporting portion extends downward and inward to form the suspension groove.

4. The adaptive spin-drying liner according to claim 1, characterized in that, The connecting part is made of elastic material, and a transverse groove is provided on the outer side of the connecting part, which extends circumferentially along the axis of rotation.

5. The adaptive spin-drying liner according to claim 4, characterized in that, The opening size of the transverse groove gradually decreases from the larger gap end to the smaller gap end.

6. The adaptive spin-drying liner according to claim 4, characterized in that, The outer side of the connecting part is provided with a longitudinal groove, which extends in a direction parallel to the rotation axis.

7. The adaptive spin-drying liner according to claim 1, characterized in that, The elastic element includes a first elastic element between the larger gap end and the spin-drying cylinder, and a second elastic element between the smaller gap end and the spin-drying cylinder, wherein: The first elastic element and the second elastic element undergo different degrees of deformation under the action of centrifugal force.

8. The adaptive spin-drying liner according to claim 1, characterized in that, The smaller gap end is rotatably mounted on the spin dryer within the longitudinal section of the spin dryer. A third elastic element is provided between the larger gap end and the spin dryer.

9. The adaptive spin-drying liner according to claim 1, characterized in that, The connecting portion extends inward at the end opposite to the supporting portion to form a cover portion; The connecting portion has an inwardly extending limiting protrusion. Any two adjacent limiting protrusions and the supporting portion and the cover portion between them define an inwardly opening spin-drying chamber. In the working position, the opening of the spin-drying chamber is smaller than the outer contour of the object.

10. The adaptive spin-drying liner according to claim 9, characterized in that, The spin-drying chambers are a plurality of chambers evenly distributed in the circumferential direction; and / or, The spin-drying chamber has at least one layer in the depth direction of the spin-drying cylinder.

11. The adaptive spin-drying liner according to claim 9, characterized in that, The cover and part of the connecting portion are integrally formed using 3D printing, and the supporting portion and the remaining connecting portion are integrally formed using 3D printing; or... The cover, the connecting part, and the supporting part are all integrally formed using 3D printing; or... The cover or the supporting part and the connecting part are integrally formed by 3D printing. Correspondingly, the supporting part or the cover is integrally formed by 3D printing.

12. The adaptive spin-drying liner according to claim 9, characterized in that, The adaptive spin-drying liner consists of multiple liner types evenly arranged circumferentially.

13. The adaptive spin-drying liner according to claim 9, characterized in that, The adaptive spin-drying liner is a one-piece structure.

14. The adaptive spin-drying liner according to any one of claims 1 to 13, characterized in that, At the operating position, all gaps are reduced to 0, the inner wall of the spin dryer is vertical, and the rotation axis is vertical.

15. The adaptive spin-drying liner according to claim 14, characterized in that, In the initial position, the larger gap end is fixed to the spin dryer by a connector.

16. The adaptive spin-drying liner according to claim 15, characterized in that, The frictional force generated between the connecting part and the spin-drying cylinder due to centrifugal force provides the power for the rotation of the adaptive spin-drying liner.

17. A spin dryer, characterized in that, Includes the adaptive spin-drying liner as described in any one of claims 1 to 16: Power unit; The spin dryer rotates around the rotation axis under the drive of the power unit; An adaptive spin-drying liner reduces the gap at least partially by means of the centrifugal force generated by the rotation of the spin-drying drum.

18. The spin dryer according to claim 17, characterized in that, A transverse groove is provided on the outer side of the connecting part, and a through water passage hole is provided on the spin-drying cylinder. Each transverse groove corresponds to at least one water passage hole.

Images