Anti-rotation device for a dispenser

Abstract

The application discloses an anti-rotation device for a dispenser, which comprises a connecting seat for connecting a stationary part on the dispenser, a mounting seat arranged below the connecting seat, a lower joint shaft, an upper joint shaft, and a movable part; the anti-rotation device further comprises an upper groove arranged on one of the upper joint shaft and the movable part, and an upper sliding block arranged on the other one of the upper joint shaft and the movable part; the anti-rotation device further comprises a lower groove arranged on one of the lower joint shaft and the movable part, and a lower sliding block arranged on the other one of the lower joint shaft and the movable part; the upper groove and the lower groove are intersected in a slot direction; two sides of the upper groove are provided with upper groove surfaces with circular-arc-shaped outer convex upper groove edges, and the part on which the upper groove is arranged can roll relative to the part on which the upper sliding block is arranged through the upper groove edges; two sides of the lower groove are provided with lower groove surfaces with circular-arc-shaped outer convex lower groove edges, and the part on which the lower groove is arranged can roll relative to the part on which the lower sliding block is arranged through the lower groove edges. The anti-rotation device for the dispenser can prolong the service life of the dispenser and ensure the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of filling technology, in particular to a rotation-preventing device for a dispenser. BACKGROUND

[0002] When the dispenser of the filling machine is working, the rotation center of the dynamic and static structures may be different due to the factors such as processing and installation, or the rotation center axis of the dispenser may not be perpendicular to the installation surface due to the non-horizontal installation surface of the dispenser, thereby causing the conical swing problem. The constraint of the rotation-preventing device on different degrees of freedom of the static structure may cause uneven stress between the dynamic and static structures, uneven wear between the sealing ring inside the dispenser and the center axis, and thus leakage, thereby reducing the service life of the dispenser and affecting the production efficiency.

[0003] The existing dispenser can solve the problem of different rotation centers of the dynamic and static structures by releasing the constraint on the vertical direction of the rotation center axis of the static structure. However, when the dispenser has the conical swing problem, the dispenser cannot realize displacement or rotation in multiple different directions, thereby causing uneven stress during the operation of the dispenser, greatly reducing the service life of the dispenser, and affecting the production efficiency. SUMMARY

[0004] The purpose of the present application is to provide a rotation-preventing device for a dispenser, so that the dispenser can always be in a free working state, thereby prolonging the service life of the dispenser and ensuring the production efficiency.

[0005] To achieve the above purpose, the technical solution adopted by the present application is as follows:

[0006] A rotation-preventing device for a dispenser, comprising a connecting seat for connecting a static part of the dispenser, the rotation-preventing device further comprising a mounting seat arranged below the connecting seat, a lower joint shaft connected above the mounting seat, an upper joint shaft connected below the connecting seat, and a movable part movably arranged between the upper joint shaft and the lower joint shaft.

[0007] In the upper joint shaft and the movable part, the rotation-preventing device further comprises an upper groove arranged on one of them, and an upper sliding block arranged on the other one and movably inserted into the upper groove in the up-down direction, the upper sliding block being further slidably arranged in the upper groove.

[0008] In the lower joint shaft and the movable part, the rotation-preventing device further comprises a lower groove arranged on one of them, and a lower sliding block arranged on the other one and movably inserted into the lower groove in the up-down direction, the lower sliding block being further slidably arranged in the lower groove. The groove direction of the upper groove and the groove direction of the lower groove intersect.

[0009] The upper groove is provided with upper groove surfaces on both sides, the upper groove surfaces have circular-arc-shaped upper groove edges which protrude outward, and the component in which the upper groove is located can roll relative to the component in which the upper slider is located through the upper groove edges; the lower groove is provided with lower groove surfaces on both sides, the lower groove surfaces have circular-arc-shaped lower groove edges which protrude outward, and the component in which the lower groove is located can roll relative to the component in which the lower slider is located through the lower groove edges.

[0010] Preferably, the upper joint shaft comprises an upper body for connecting the connecting seat, the upper groove is formed by upwardly recessing the bottom of the upper body; the lower joint shaft comprises a lower body for connecting the mounting seat, and the lower groove is formed by downwardly recessing the top of the lower body.

[0011] The movable member comprises a movable body, the upper slider is upwardly protruded on the upper surface of the movable body, and the lower slider is downwardly protruded on the lower surface of the movable body.

[0012] More preferably, the upper groove edges are formed by downwardly protruding the bottoms of the upper groove surfaces, and the lower groove edges are formed by upwardly protruding the tops of the lower groove surfaces.

[0013] The upper joint shaft can roll relative to the upper surface of the movable body through the upper groove edges, and the rolling plane thereof is parallel to the side surface of the upper slider; the lower joint shaft can roll relative to the lower surface of the movable body through the lower groove edges, and the rolling plane thereof is parallel to the side surface of the lower slider.

[0014] More preferably, the upper surface and the lower surface of the movable body are parallel to each other and are respectively perpendicular to the upper sliding member and the lower sliding member.

[0015] More preferably, the groove direction of the upper groove and the groove direction of the lower groove are perpendicular to each other.

[0016] More preferably, the upper circular-arc surfaces are respectively provided on the upper sides of both ends of the upper slider; and the lower circular-arc surfaces are respectively provided on the lower sides of both ends of the lower slider.

[0017] Preferably, in the initial state, the rotation axes of the upper joint shaft, the movable member and the lower joint shaft coincide with each other and with the rotation axis of the upper rotating member of the dispenser.

[0018] Preferably, the anti-rotation device further comprises an upper through hole, a middle through hole and a lower through hole which respectively penetrate the upper joint shaft, the movable member and the lower joint shaft along the upper-lower direction, and the upper through hole, the middle through hole and the lower through hole are sequentially aligned along the upper-lower direction.

[0019] Preferably, the connecting seat comprises a connecting body for connecting the upper joint shaft, a plurality of upper connecting members arranged uniformly in the circumferential direction on the connecting body and used for connecting the stationary member.

[0020] Preferably, the mounting seat comprises a mounting body for connecting the lower joint shaft, a plurality of lower connecting members arranged uniformly in the circumferential direction on the mounting body and used for connecting the base.

[0021] Thanks to the use of the above technical solution, the present application has the following advantages compared with the prior art: the anti-rotation device for the dispenser can only constrain the freedom of the stationary member that needs to be prevented from rotating, and release the movement of the stationary member in the remaining five freedom directions, eliminate the constraint of the remaining freedom on the stationary member, so that the dispenser can always be in a free working state, slow down the uneven wear inside the dispenser, prolong the service life of the dispenser, and ensure the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] ATTACHED Figure 1 is a structural schematic view of the anti-rotation device for the dispenser according to the present application;

[0023] ATTACHED Figure 2 is an exploded structural schematic view of the upper joint shaft, the movable member and the lower joint shaft.

[0024] Wherein: 1, dispenser; 11, stationary member; 12, rotating member;

[0025] 2, connecting seat; 21, connecting body; 22, upper connecting member;

[0026] 3, mounting seat; 31, mounting body; 32, lower connecting member;

[0027] 4, lower joint shaft; 41, lower body; 42, lower groove; 43, lower groove surface; 44, lower groove edge; 45, lower through hole;

[0028] 5, upper joint shaft; 51, upper body; 52, upper groove; 53, upper groove surface; 54, upper groove edge; 55, upper through hole;

[0029] 6, movable member; 61, movable body; 62, upper sliding block; 621, upper circular surface; 63, lower sliding block; 631, lower circular surface; 64, middle through hole;

[0030] 7, base. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be further described below in combination with specific embodiments and drawings.

[0032] In the following certain exemplary embodiments are simply described. As will be realized by those skilled in the art, the described embodiments can be modified in various different ways without departing from the spirit or scope thereof. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not as restrictive.

[0033] In the description of the present embodiments, it is to be understood that the orientation or positional relationship indicated by the terms "length", "inner", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present embodiments and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present embodiments.

[0034] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present embodiments, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0035] In the present embodiments, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing", etc. should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, or communication; can be direct connection, or indirect connection through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiments can be understood according to the specific circumstances.

[0036] In the present embodiments, unless otherwise explicitly specified and limited, "on" or "under" of the first feature to the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, "on", "above" and "above" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. "Below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0037] The following disclosure provides many different embodiments, or examples, for implementing different structures of embodiments of the application. For purposes of simplicity and clarity, the description is directed to specific examples of components and arrangements of components. Of course, these are merely examples and are not intended to limit the application, as the application can be implemented in various ways beyond the examples presented. For example, the present examples are used in a variety of different embodiments including the structure for implementing embodiments of the application as well as for implementing other variations and modifications that are not specifically described. In addition, well-known structures have not been described in great detail in order to avoid obscuring the present application. Further, the descriptions of the various components and arrangements are intended to provide examples of the application and are not intended to limit the scope of the application. Moreover, the descriptions of the various embodiments of the application are not intended to limit the scope of the application. Indeed, the descriptions of the various embodiments are intended to encompass all possible embodiments of the application.

[0038] Referring to Figures 1-2 As shown, the present embodiment provides an anti-rotation device for a dispenser, the dispenser 1 comprising a static part 11 and a rotating part 12 coaxially arranged, in the present embodiment, the static part 11 is a cylinder, the rotating part 12 comprises a rotating shaft rotatably arranged in the cylinder along the axial direction of the rotating shaft, the rotating part 12 further comprises a flange connected to the top of the rotating shaft and located above the cylinder.

[0039] Referring to Figure 1 As shown, the dispenser 1 is arranged on a base 7, the anti-rotation device for the dispenser comprises a connecting seat 2 for connecting the static part 11, a mounting seat 3 arranged below the connecting seat 2 and for connecting the base 7, a lower joint shaft 4 connected above the mounting seat 3, an upper joint shaft 5 connected below the connecting seat 2 and above the lower joint shaft 4, and a movable part 6 movably arranged between the upper joint shaft 5 and the lower joint shaft 4.

[0040] In the initial state, the rotation axes of the upper joint shaft 5, the movable part 6 and the lower joint shaft 4 coincide with each other, and the rotation axis of the rotating part 12 coincides with the axial direction of the rotating shaft.

[0041] In the upper joint shaft 5 and the movable part 6, the anti-rotation device further comprises an upper groove 52 arranged on one of them, and an upper sliding block 62 arranged on the other of them and movably arranged in the upper groove 52 along the up-down direction, the upper sliding block 62 is further slidably arranged in the upper groove 52 along the groove direction. Through this arrangement, the upper joint shaft 5 has the freedom degrees of X direction and Z direction relative to the movable part 6, that is, the groove direction of the upper groove 52 is X direction.

[0042] In the lower joint shaft 4 and the movable part 6, the anti-rotation device further comprises a lower groove 42 arranged on one of them, and a lower sliding block 63 arranged on the other of them and movably arranged in the lower groove 42 along the up-down direction, the lower sliding block 63 is further slidably arranged in the lower groove 42 along the groove direction. Through this arrangement, the lower joint shaft 4 has the freedom degrees of Y direction and Z direction relative to the movable part 6, that is, the groove direction of the lower groove 42 is Y direction.

[0043] The groove direction of the upper groove 52 intersects with the groove direction of the lower groove 42 to ensure that the X direction intersects with the Y direction. In the embodiment, the groove direction of the upper groove 52 is perpendicular to the groove direction of the lower groove 42, i.e. the X direction is perpendicular to the Y direction.

[0044] The upper groove 52 is provided with upper groove surfaces 53 on both sides, and the upper groove surfaces 53 have upper groove edges 54 which are outwardly convex in a circular arc shape. The component in which the upper groove 52 is located can roll relative to the component in which the upper slider 62 is located through the upper groove edges 54. Through this arrangement, the upper joint shaft 5 has a rotational degree of freedom in the XZ plane relative to the movable member 6.

[0045] The lower groove 42 is provided with lower groove surfaces 43 on both sides, and the lower groove surfaces 43 have lower groove edges 44 which are outwardly convex in a circular arc shape. The component in which the lower groove 42 is located can roll relative to the component in which the lower slider 63 is located through the lower groove edges 44. Through this arrangement, the lower joint shaft 4 has a rotational degree of freedom in the YZ plane relative to the movable member 6.

[0046] Through the above structure, the stationary member 11 has five degrees of freedom of the X direction, the Y direction, the Z direction, the XZ plane and the YZ plane at the same time. By eliminating the constraints of these degrees of freedom on the stationary member 11, the dispenser 1 can always be in a free working state, which slows down the uneven wear inside the dispenser 1, prolongs the service life of the dispenser 1 and ensures the production efficiency.

[0047] Referring to Figures 1-2 In the embodiment, the upper joint shaft 5 includes an upper body 51 for connecting the connecting seat 2, and the upper groove 52 is formed by upwardly recessing the bottom of the upper body 51. The lower joint shaft 4 includes a lower body 41 for connecting the mounting seat 3, and the lower groove 42 is formed by downwardly recessing the top of the lower body 41. The movable member 6 includes a movable body 61, and the upper slider 62 is upwardly protruding on the upper surface of the movable body 61, and the lower slider 63 is downwardly protruding on the lower surface of the movable body 61.

[0048] The upper groove edges 54 are formed by downwardly protruding the bottom of the upper groove surfaces 53, and the lower groove edges 44 are formed by upwardly protruding the top of the lower groove surfaces 43. The upper joint shaft 5 can roll relative to the upper surface of the movable body 61 through the upper groove edges 54, and the rolling plane is parallel to the side surface of the upper slider 62, i.e. the XZ plane. The lower joint shaft 4 can roll relative to the lower surface of the movable body 61 through the lower groove edges 44, and the rolling plane is parallel to the side surface of the lower slider 63, i.e. the YZ plane.

[0049] In the embodiment, the upper slider 62 has upper circular arc surfaces 621 on the upper sides of both ends, and the lower slider 63 has lower circular arc surfaces 631 on the lower sides of both ends. Through this arrangement, interference can be avoided when the upper joint shaft 5 and the lower joint shaft 4 rotate relative to the movable member 6 respectively.

[0050] In the embodiment, the upper surface and the lower surface of the movable body 61 are parallel to each other and are perpendicular to the upper slide and the lower slide, respectively. In the initial state, the upper surface and the lower surface of the movable body 61 are parallel to the horizontal plane, respectively.

[0051] In the embodiment, the anti-rotation device further comprises upper, middle and lower through holes 55, 64 and 45, respectively, which pass through the upper joint shaft 5, the movable member 6 and the lower joint shaft 4 in the up-down direction, and the upper, middle and lower through holes 55, 64 and 45 are aligned in the up-down direction in sequence. Through this arrangement, the internal passage formed by the upper, middle and lower through holes 55, 64 and 45 is used to facilitate the air, liquid, electricity and the like from the outside to the dispenser 1 (for example, the electric cable is discharged into the through hole when power is supplied). Figure 2 It can be seen that the upper slide 62 is divided into two parts by the upper through hole 55, the lower slide 63 is divided into two parts by the lower through hole 45, and the movable body 61 is a circular ring.

[0052] The mounting seat 3 comprises a mounting body 31 for connecting the lower joint shaft 4, and a plurality of lower connecting members 32 arranged uniformly in the circumferential direction on the mounting body 31 and used for connecting the base 7. Through this arrangement, the stable connection between the mounting seat 3 and the base 7 can be ensured.

[0053] In actual work process:

[0054] When the stationary member 11 is subjected to the X-direction force, the upper joint shaft 5 moves relative to the movable member 6 in the X-direction;

[0055] When the stationary member 11 is subjected to the Y-direction force, the upper joint shaft 5 moves relative to the lower joint shaft 4 in the Y-direction with the movable member 6;

[0056] When the stationary member 11 is subjected to the Z-direction force, the upper joint shaft 5 moves relative to the movable member 6 in the Z-direction;

[0057] When the stationary member 11 needs to be rotated due to the conical swing problem, the upper joint shaft 5 can not only rotate relative to the movable member 6 in the XZ plane, but also can rotate relative to the lower joint shaft 4 in the YZ plane with the movable member 6.

[0058] Obviously, since the movable member 6 is movably abutted between the upper joint shaft 5 and the lower joint shaft 4, in order to avoid that the three are separated from each other in the movement process of the stationary member 11, the specific sizes of the three need to be designed according to the maximum stroke of the stationary member 11.

[0059] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. An anti-rotation device for a dispenser comprising a connecting seat for connecting a stationary element on the dispenser, characterized in that: The anti-rotation device further comprises a mounting base arranged below the connecting seat, a lower joint shaft connected above the mounting base, an upper joint shaft connected below the connecting seat, and a movable member movably arranged between the upper joint shaft and the lower joint shaft. In the upper joint shaft and the movable member, the anti-rotation device further comprises an upper groove arranged on the upper joint shaft, and an upper sliding block arranged on the movable member and movably inserted into the upper groove in the up-down direction, the upper sliding block being further slidably arranged in the upper groove in the groove direction. In the lower joint shaft and the movable member, the anti-rotation device further comprises a lower groove arranged on the lower joint shaft, and a lower sliding block arranged on the movable member and movably inserted into the lower groove in the up-down direction, the lower sliding block being further slidably arranged in the lower groove in the groove direction. The groove direction of the upper groove and the groove direction of the lower groove intersect each other. The upper groove is provided with upper groove faces on both sides, the upper groove faces having circular-arc outer convex upper groove edges, the component where the upper groove is arranged being able to roll relative to the component where the upper sliding block is arranged through the upper groove edges; the lower groove is provided with lower groove faces on both sides, the lower groove faces having circular-arc outer convex lower groove edges, the component where the lower groove is arranged being able to roll relative to the component where the lower sliding block is arranged through the lower groove edges.

2. An anti-rotation device for a dispenser as defined in claim 1, characterized in that: The upper joint shaft comprises an upper body for connecting the connecting seat, the upper groove being formed by upwardly recessing the bottom of the upper body; the lower joint shaft comprises a lower body for connecting the mounting base, the lower groove being formed by downwardly recessing the top of the lower body; The movable member comprises a movable body, the upper sliding block being upwardly convexly arranged on the upper surface of the movable body, and the lower sliding block being downwardly convexly arranged on the lower surface of the movable body.

3. An anti-rotation device for a dispenser as defined in claim 2, characterized in that: The upper groove edges are formed by downwardly convexly recessing the bottom of the upper groove faces, and the lower groove edges are formed by upwardly convexly recessing the top of the lower groove faces; The upper joint shaft is able to roll relative to the upper surface of the movable body through the upper groove edges, the rolling plane being parallel to the side surface of the upper sliding block; the lower joint shaft is able to roll relative to the lower surface of the movable body through the lower groove edges, the rolling plane being parallel to the side surface of the lower sliding block.

4. An anti-rotation device for a dispenser as defined in claim 2, wherein: The upper surface and the lower surface of the movable body are parallel to each other and are respectively perpendicular to the upper sliding block and the lower sliding block.

5. An anti-rotation device for a dispenser as defined in claim 2, wherein: The groove direction of the upper groove and the groove direction of the lower groove are perpendicular to each other.

6. An anti-rotation device for a dispenser as defined in claim 2, wherein: The upper sliding block is respectively provided with upper circular-arc faces on the upper sides of both ends; the lower sliding block is respectively provided with lower circular-arc faces on the lower sides of both ends.

7. An anti-rotation device for a dispenser as defined in claim 1, wherein: In the initial state, the rotation axes of the upper joint shaft, the movable member and the lower joint shaft coincide with each other and with the rotation axis of the distributor upper rotating member.

8. An anti-rotation device for a dispenser as defined in claim 1, wherein: The anti-rotation device further comprises upper, middle and lower through holes respectively penetrating the upper joint shaft, the movable member and the lower joint shaft in the up-down direction, the upper, middle and lower through holes being sequentially aligned in the up-down direction.

9. An anti-rotation device for a dispenser as defined in claim 1, wherein: The connecting seat comprises a connecting body for connecting the upper joint shaft, and a plurality of upper connecting members arranged on the connecting body in the circumferential direction and for connecting the stationary member.

10. An anti-rotation device for a dispenser as defined in claim 1, wherein: The mounting base comprises a mounting body for connecting the lower joint shaft, a plurality of lower connecting members arranged on the mounting body in a uniform circumferential direction and used for connecting the base.

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