Ejecting mechanism and filling equipment

Abstract

The utility model relates to a push-out mechanism and filling equipment comprising the push-out mechanism. The push-out mechanism includes: a push plate extending in a longitudinal direction, the push plate having a first end and a second end opposite to each other; the length direction of the guide rail is perpendicular to the longitudinal direction, and the guide rail comprises a first guide rail body arranged at the first end and a second guide rail body arranged at the second end; the connecting rod assembly is connected to the first end part through the first sliding part, so that the first end part of the push plate does linear reciprocating motion along the first guide rail, and the connecting rod assembly is connected to the second end part through the second sliding part, so that the second end part of the push plate does linear reciprocating motion along the second guide rail; and the first end part is connected with the first sliding piece through a flexible connecting structure. The push-out mechanism is beneficial for avoiding or relieving the problem that the push plate is clamped by the guide rail due to asynchronous movement of the two end parts of the push plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical transmission mechanism, and concretely relates to a push-out mechanism and a filling equipment comprising the push-out mechanism. BACKGROUND

[0002] The content of this part only provides the background information related to the utility model, which can not constitute the prior art.

[0003] In a filling equipment for filling beverages or food, one or more packages after filling can be pushed out to a downstream station by a long strip-shaped push plate. The filling equipment is usually provided with a driver such as a motor at one longitudinal end of the push plate to drive the push plate to perform linear reciprocating motion along the guide rail perpendicular to the longitudinal direction of the push plate to push out the packages. Due to the long longitudinal length of the push plate and the setting of the motor on one side as well as the machining and installation errors of each part, the forces on the two longitudinal ends of the push plate can be unequal, so the movements of the two longitudinal ends of the push plate relative to the guide rail can be out of sync, which can cause the push plate to be easily stuck relative to the guide rail.

[0004] Therefore, it is necessary to develop an improved push-out mechanism to prevent or alleviate the push plate from being stuck relative to the guide rail. SUMMARY

[0005] One object of the utility model is to prevent or alleviate the push plate of the push-out mechanism from being stuck relative to the guide rail. Another object of the utility model is to improve the reliability of the push-out mechanism and the filling equipment.

[0006] One aspect of the utility model provides a push-out mechanism, which comprises: a push plate extending in a longitudinal direction, the push plate having a first end and a second end opposite to each other; a guide rail, the length direction of the guide rail being perpendicular to the longitudinal direction, the guide rail comprising a first guide rail provided at the first end and a second guide rail provided at the second end; a connecting rod assembly, a first sliding member and a second sliding member, the connecting rod assembly being connected to the first end via the first sliding member to make the first end of the push plate perform linear reciprocating motion along the first guide rail, and the connecting rod assembly being connected to the second end via the second sliding member to make the second end of the push plate perform linear reciprocating motion along the second guide rail, wherein the first end and the first sliding member are connected by a flexible connecting structure.

[0007] In some embodiments, the first sliding member can comprise a first part and a second part, the first part being connected to the first guide rail in a slidable manner along the first guide rail, and the second part being connected to the first end of the push plate, the first sliding member being configured to enable the first part and the second part to move relative to each other.

[0008] In some embodiments, the first component may be configured as a slider mount, and the second component may be configured as a slider. The first slider may further include a guide shaft connected to the slider mount and extending along the length of the guide rail. The slider mount includes a groove in which the slider is disposed and on the guide shaft. A gap is formed between the slider and the inner wall of the groove along the length of the guide rail.

[0009] In some embodiments, a damping member may be arranged in the gap between the slider and the inner wall of the groove.

[0010] In some implementations, the second end of the push plate can be fixedly connected to the second slider.

[0011] In some embodiments, the ejection mechanism may also include a driver that is connected to and drives the linkage assembly on one side of the second end of the push plate.

[0012] In some embodiments, the linkage assembly may include: a crank-connecting rod mechanism connected to the output shaft of the driver and converting the rotational motion of the output shaft into reciprocating motion; an intermediate transmission mechanism connected to the crank-connecting rod mechanism and including a drive shaft extending in a longitudinal direction; a first link connecting the distal end of the intermediate transmission mechanism to a first slider; and a second link connecting the proximal end of the intermediate transmission mechanism to a second slider.

[0013] In some implementations, the guide rail may include a first guide rod extending through a first slider and a second guide rod extending through a second slider.

[0014] In some embodiments, the ejection mechanism may also include a support frame, a guide rail fixed to the support frame, and a push plate configured to move relative to the support frame to eject an item located on the push plate from the support frame.

[0015] Another aspect of the present invention provides a filling device including a push mechanism according to the above aspects, wherein the push plate of the push mechanism is configured to push the package in the filling device to a downstream station.

[0016] In the ejection mechanism according to the present invention, at least one end of the push plate is engaged with the guide rail through a flexible connection structure. This flexible connection structure increases the tolerance for part machining errors, installation errors and motion errors. Therefore, even if the two ends of the push plate do not move in complete synchronization, the push plate can be effectively prevented from being stuck by the guide rail. Attached Figure Description

[0017] The embodiments of the present invention will be described below by way of example only with reference to the accompanying drawings. In the drawings, the same features or parts are indicated by the same reference numerals, and the drawings are not necessarily drawn to scale. In the drawings:

[0018] Figure 1 and Figure 2 Perspective views of the ejection mechanism according to one embodiment of the present invention are shown from different angles;

[0019] Figure 3 A perspective view of the push plate of the ejection mechanism according to one embodiment of the present invention is shown;

[0020] Figure 4 It shows Figure 3 An enlarged view of the first end of the push plate in the middle;

[0021] Figure 5 It shows Figure 3 An exploded enlarged view of the first end of the push plate in the middle;

[0022] Figure 6 It shows Figure 3 Enlarged view of the second end of the push plate in the middle; and

[0023] Figure 7 It shows Figure 3 An exploded enlarged view of the second end of the push plate in the middle. Detailed Implementation

[0024] The following description is exemplary in nature and is not intended to limit the present invention or its applications and uses. It should be understood that in all these figures, similar reference numerals indicate the same or similar parts and features. The figures only schematically illustrate the concept and principles of embodiments of the present invention and do not necessarily show the specific dimensions and proportions of the various embodiments of the present invention. Specific details or structures of embodiments of the present invention may be exaggerated in particular portions of certain figures.

[0025] In the description of the embodiments of this utility model, if used, the directional terms related to "upper" and "lower" are used to describe the positions of "upper" and "lower" in the views shown in the accompanying drawings. In practical applications, the positional relationships of "upper" and "lower" used herein can be determined according to the actual situation, and for example, the relationship between "upper" and "lower" can be reversed.

[0026] Figure 1 and Figure 2 Perspective views of a dispensing mechanism 1 according to one embodiment of the present invention are shown from different angles. The dispensing mechanism 1 is configured to dispense an object disposed therein; for example, the dispensing mechanism 1 may be provided in a filling device for dispensing packaging (such as boxes, bags, or bottles) from the filling device to a downstream station. Figure 1 and Figure 2As shown, the ejection mechanism 1 includes a push plate 10 extending in a longitudinal direction and a guide rail 20 extending in a direction perpendicular to the longitudinal direction. The push plate 10 has a first end 11 and a second end 12 opposite to each other. The guide rail 20 includes a first guide rail 21 disposed at the first end 11 of the push plate 10 and a second guide rail 22 disposed at the second end 12 of the push plate 10. The ejection mechanism 1 also includes a linkage assembly 30, a first slider 41 slidable along the first guide rail 21, and a second slider 42 slidable along the second guide rail. For example, the first guide rail 11 may include a first guide rod extending through the first slider 41, and the second guide rail 22 may include a second guide rod extending through the second slider 42. The first guide rod and the second guide rod are arranged in parallel such that the first slider 41 slides on the first guide rod, and the second slider 42 slides on the second guide rod. The linkage assembly 30 is connected to the first end 11 of the push plate 10 via the first slider 41, and the linkage assembly 30 is connected to the second end 12 of the push plate 10 via the second slider 42. The ejection mechanism 1 may further include a driver 50 disposed on one side of the second end 12 of the push plate 10, the driver 50 being connected to the linkage assembly 30. The driver 50 may include, for example, an electric motor. The ejection mechanism 1 may further include a support frame 60 for supporting the guide rail 20, the guide rail 20 being fixed to the support frame 60. In this embodiment, the support frame 60 extends in the longitudinal direction and the first guide rail 21 and the second guide rail 22 are respectively fixed to opposite ends in the longitudinal direction of the support frame 60. The support frame 60 may be provided with a plurality of spacers 61 spaced apart along the longitudinal direction of the push plate 10, each of one or more objects to be ejected may rest on the push plate 10 and be positioned between two adjacent spacers 61. When the ejection mechanism 1 is running, the driver 50 drives the linkage assembly 30, and the linkage assembly 30 transmits power to the first slider 41 connected to the first end 11 of the push plate 10 and the second slider 42 connected to the second end 12 of the push plate 10, so that the first end 11 of the push plate 10 reciprocates linearly along the first guide rail 21, while the second end 12 of the push plate 10 reciprocates linearly along the second guide rail 22. Thus, the push plate 10 moves relative to the guide rail 20 and the support frame 60 to eject the object (e.g., one or more packages) located on the push plate 10 from the support frame 60.

[0027] To convert the rotational motion of the output shaft of the driver 50 into the linear reciprocating motion of the push plate 10 along the guide rail 20, the linkage assembly 30 may include: a crank-connecting rod mechanism 31; an intermediate transmission mechanism; a first connecting rod 33; and a second connecting rod 34. The crank-connecting rod mechanism 31 is connected to the output shaft of the driver 50 and converts the rotational motion of the output shaft into reciprocating motion (i.e., the oscillation of the intermediate transmission mechanism). The crank-connecting rod mechanism 31 may include: a crank fixed to the output shaft of the driver 50; and a primary connecting rod pivotally connected to the crank. The intermediate transmission mechanism includes: a drive shaft 32 extending in the longitudinal direction (i.e., parallel to the push plate 10); and an intermediate connecting rod 39 fixed to the drive shaft 32 and pivotally connected to the primary connecting rod of the crank-connecting rod mechanism 31. The intermediate connecting rod 39 includes a distal intermediate connecting rod located on the distal end 321 side of the intermediate transmission mechanism and a proximal intermediate connecting rod located on the proximal end 322 side of the intermediate transmission mechanism. The first link 33, belonging to the three-stage linkage, is pivotally connected to the distal intermediate link of the intermediate transmission mechanism and to the first slider 41 (specifically, the first component 411 of the first slider 41 is the slider mounting base). The second link 34, also belonging to the three-stage linkage, is pivotally connected to the proximal intermediate link of the intermediate transmission mechanism on the side opposite to the distal end 321, and to the second slider 42. In other embodiments, other linkage assemblies with any other transmission structure suitable for converting the rotational motion of the output shaft of the driver 50 into the linear reciprocating motion of the slider may also be used.

[0028] Figure 3 A perspective view of the push plate 10 is shown. Figure 4 and Figure 5 Enlarged and exploded enlarged views of the first end portion 11 of the push plate 10 are shown respectively. Figure 6 and Figure 7 Enlarged and exploded enlarged views of the second end 12 of the push plate 10 are shown respectively.

[0029] Ideally, the first end 11 and the second end 12 of the push plate 10 should reciprocate linearly along the guide rail 20 synchronously. That is, during the linear reciprocating motion of the push plate 10, the longitudinal direction of the push plate 10 is always perpendicular to the length direction of the guide rail 20. However, in reality, because the push plate 10 has a large longitudinal length and the driver 50 is located on one side of the push plate 10, and because there may be machining and installation errors in the parts, for example, the length of the first connecting rod 33 that pushes the first end 11 of the push plate 10 and the length of the second connecting rod 34 that pushes the second end 12 of the push plate 10 may not be exactly the same. Therefore, the movements of the first end 11 and the second end 12 of the push plate 10 may not be completely synchronous. To avoid the push plate 10 getting stuck relative to the guide rail 20 due to the asynchronous movement of the first end 11 and the second end 12 during the linear reciprocating motion of the push plate 10 along the guide rail 20, at least one end of the push plate 10 is connected to a corresponding slider through a flexible connection structure to increase the tolerance of the push mechanism 1 for machining errors, installation errors, and motion errors. In this embodiment, the first end 11 of the push plate 10 is connected to the first sliding member 41 through a flexible connection structure (in other words, the push plate 10 and the first connecting rod 33 are flexibly connected through the first sliding member 41 with a flexible connection structure), and the second end 12 of the push plate 10 is fixedly connected to the second sliding member 42.

[0030] like Figure 4 and Figure 5As shown, the first slider 41 located at the first end 11 of the push plate 10 includes a first component 411 and a second component 412 that are movable relative to each other (particularly, along the length of the guide rail 20). The first component 411 is configured to be slidably connected to the first guide rail 21, and the second component is connected to the first end 11 of the push plate 10. The first component 411 and the second component 412, which are movable relative to each other, establish a flexible connection between the first end 11 of the push plate 10 and the first slider 41 (in other words, the first component 411 and the second component 412, which are movable relative to each other, and optionally a damping member located therebetween constitute the flexible connection structure according to the present invention). More specifically, in this embodiment, the first component 411 is configured as a slider mounting seat that is slidable along the first guide rail 21, and the second component 412 is configured as a slider that is movable relative to the slider mounting seat. The slider is arranged in a groove 411a on the slider mounting seat. A fastener 416 passes through a fastener hole 412a on the slider and a fastener hole 13 on the first end 11 of the push plate 10 to fix the slider to the first end 11 of the push plate 10. Preferably, the fastener hole 13 can be configured as an oblong hole extending longitudinally along the longitudinal direction of the push plate 10. This allows for slight adjustment of the longitudinal mounting position of the push plate 10 during installation, further increasing the tolerance of the ejection mechanism 1 for part machining errors. The first slider 41 may also include a guide shaft extending along the length of the guide rail 20. The guide shaft may include a guide shaft body 413 and a bushing 414 fitted onto the guide shaft body 413. The guide shaft is connected to the slider mounting seat and at least partially passes through the groove 411a of the slider mounting seat, such that the slider is arranged on the guide shaft (specifically, the bushing 414 of the guide shaft). Along the length of the guide rail 20, a gap is formed between the slider and the inner wall of the groove 411a of the slider mounting seat, allowing the slider to move relative to the slider mounting seat along the guide axis within the groove 411a. Preferably, a damping member 415 for absorbing shocks and vibrations can be arranged in the gap between the slider and the inner wall of the groove 411a of the slider mounting seat. For example, the damping member 415 may include a rubber block, a spring, or other elastic elements. In this embodiment, the damping member 415 includes a rubber block. The ejection mechanism 1 may also include a first height adjustment block 417 at the first end 11 of the push plate 10, connected to the first component 411 (slider mounting seat) of the first slider 41, for adjusting the height of the first component 411 and thus the second component 412 relative to the first guide rail 21 during installation, thereby adjusting the height of the first end 11 of the push plate 10 relative to the first guide rail 21. Furthermore, if the longitudinal length of the push plate 10 is less than the distance between the first guide rail 21 and the second guide rail 22, a first extension plate 71 can be provided at the first end 11 of the push plate 10 to extend the length of the assembly consisting of the push plate 10 and the first sliding member 41.In this embodiment, the first extension plate 71 is fixedly connected to the first component 411 (slider mounting base) of the first slider 41 by fastener 91. In other words, the first extension plate 71 can be regarded as part of the first component 411 of the first slider 41. If the length of the push plate 10 is greater than or equal to the distance between the first guide rail 21 and the second guide rail 22, the first extension plate 71 can be omitted.

[0031] In other embodiments, the first component 411 and the second component 412 of the first slider 41 can be configured in any other suitable form besides the slider mounting base and slider described above, as long as the first component 411 and the second component 412 can move relative to each other to a certain extent in the length direction of the guide rail 20. For example, the first component 411 and the second component 412 can be configured as two sleeves in a nested relationship.

[0032] like Figure 6 and Figure 7 As shown, the second end 12 of the push plate 10 is fixedly connected to the second slider 42. Specifically, a fastener 426 passes through a fastener hole 421 on the second slider 42 and a fastener hole 14 on the second end 12 of the push plate 10 to fix the slider to the second end 12 of the push plate 10. Unlike the first slider 41, which includes a first component 411 and a second component 412 capable of relative movement, the second slider 42 is constructed as a single piece. The push-out mechanism 1 may also include a second height adjustment block 427 connected to the second slider 42 at the second end of the push plate 10 for adjusting the height of the second end 12 of the push plate 10 relative to the second guide rail 22 during installation. Preferably, the height of the first end 11 of the push plate 10 relative to the first guide rail 21 is equal to the height of the second end 12 of the push plate 10 relative to the second guide rail 22. Furthermore, when the longitudinal length of the push plate 10 is less than the distance between the first guide rail 21 and the second guide rail 22, a second extension plate 72 may be provided at the second end 12 of the push plate 10 to extend the length of the assembly consisting of the push plate 10 and the second slider 42. In this embodiment, the second extension plate 72 is fixedly connected to the second slider 42 by fasteners 92. In other words, the second extension plate 72 can also be considered as part of the second slider 42. If the length of the push plate 10 is greater than or equal to the distance between the first guide rail 21 and the second guide rail 22, the second extension plate 72 can be omitted. Apart from the first slider 41 and the second slider 42, the other structures at the first end 11 and the second end 12 of the push plate 10 can be the same or similar.

[0033] When the pusher plate 10 reciprocates linearly relative to the guide rail 20 and the support frame 60, even if the movements of the first end 11 and the second end 12 of the pusher plate 10 are asynchronous, the error caused by the asynchronous movement of the first end 11 and the second end 12 of the pusher plate 10 can be absorbed because one end of the pusher plate 10 (the first end 11 in this embodiment) is connected to the corresponding sliding member through a flexible structure, thereby preventing the pusher plate 10 from getting stuck relative to the guide rail 20. The filling equipment including the push-out mechanism 1 utilizes a single driver and a simple, low-cost transmission mechanism to efficiently, reliably, and smoothly push the packaging to the downstream station, improving the reliability and efficiency of the filling equipment.

[0034] Preferably, the first end 11 of the push plate 10, away from the driver 50, is flexibly connected to the first slider 41, and the second end 12 of the push plate 10, near the driver 50, is fixedly connected to the second slider 42. Thus, the fixed connection structure near the driver 50 ensures high efficiency in transmitting power from the driver 50 to the push plate 10, while the flexible connection structure away from the driver 50 can absorb errors caused by asynchronous movement of the first end 11 and the second end 12 of the push plate 10, preventing the push plate 10 from jamming relative to the guide rail 20. However, the present invention is not limited to this. In other embodiments, the second end 12 of the push plate 10 near the driver 50 may also be flexibly connected to the second slider 42, and the first end 11 of the push plate 10 away from the driver 50 may be fixedly connected to the first slider 41. Furthermore, both the first end 11 and the second end 12 of the push plate 10 may be connected to their respective sliders via flexible connection structures.

[0035] The filling equipment according to this application may include a primary ejection mechanism and a secondary ejection mechanism to respectively push the package first and second. The ejection mechanism described above is particularly suitable as a secondary ejection mechanism of the filling equipment.

[0036] Exemplary embodiments of the ejection mechanism and filling equipment according to this utility model have been described in detail herein. However, it should be understood that this utility model is not limited to the specific embodiments described and shown above. Various modifications and variations can be made to this utility model by those skilled in the art without departing from its spirit and scope. All such modifications and variations fall within the scope of this utility model. Moreover, all components described herein can be replaced by other technically equivalent components.

Claims

1. A launching mechanism (1), characterized in that, The launching mechanism (1) includes: A push plate (10) extending in the longitudinal direction, the push plate (10) having a first end (11) and a second end (12) opposite to each other; The guide rail (20) has a length direction perpendicular to the longitudinal direction. The guide rail (20) includes a first guide rail (21) disposed at the first end (11) and a second guide rail (22) disposed at the second end (12). The linkage assembly (30), the first slider (41), and the second slider (42) are provided. The linkage assembly (30) is connected to the first end (11) via the first slider (41), causing the first end (11) of the push plate (10) to reciprocate linearly along the first guide rail (21). The linkage assembly (30) is connected to the second end (12) via the second slider (42), causing the second end (12) of the push plate (10) to reciprocate linearly along the second guide rail (22). The first end (11) and the first slider (41) are connected by a flexible connection structure.

2. The ejection mechanism (1) according to claim 1, characterized in that, The first slider (41) includes a first component (411) and a second component (412), the first component (411) being slidably connected to the first guide rail (21), and the second component (412) being connected to the first end (11) of the push plate (10), the first slider (41) being configured such that the first component (411) and the second component (412) are movable relative to each other.

3. The ejection mechanism (1) according to claim 2, characterized in that, The first component (411) is configured as a slider mounting base, the second component (412) is configured as a slider, and the first slider (41) further includes a guide shaft connected to the slider mounting base and extending along the length direction of the guide rail (20). The slider mounting base includes a groove (411a), and the slider is arranged in the groove (411a) and on the guide shaft. In the length direction of the guide rail (20), a gap is formed between the slider and the inner wall of the groove (411a).

4. The ejection mechanism (1) according to claim 3, characterized in that, A damping member (415) is arranged in the gap between the slider and the inner wall of the groove (411a).

5. The ejection mechanism (1) according to any one of claims 1 to 4, characterized in that, The second end (12) of the push plate (10) is fixedly connected to the second sliding member (42).

6. The ejection mechanism (1) according to any one of claims 1 to 4, characterized in that, The ejection mechanism (1) further includes a driver (50) which is connected to and drives the linkage assembly (30) on one side of the second end (12) of the push plate (10).

7. The ejection mechanism (1) according to claim 6, characterized in that, The linkage assembly (30) includes: a crank-connecting rod mechanism (31) connected to the output shaft of the driver (50) and converting the rotational motion of the output shaft into reciprocating motion; an intermediate transmission mechanism connected to the crank-connecting rod mechanism (31) and including a drive shaft (32) extending along the longitudinal direction; a first link (33) connecting the distal end (321) of the intermediate transmission mechanism to the first slider (41); and a second link (34) connecting the proximal end (322) of the intermediate transmission mechanism to the second slider (42).

8. The ejection mechanism (1) according to any one of claims 1 to 4, characterized in that, The guide rail (20) includes a first guide rod extending through the first slider (41) and a second guide rod extending through the second slider (42).

9. The ejection mechanism (1) according to any one of claims 1 to 4, characterized in that, The ejection mechanism (1) further includes a support frame (60), the guide rail (20) is fixed to the support frame (60), and the push plate (10) is configured to move relative to the support frame (60) to eject an item located on the push plate (10) from the support frame (60).

10. A filling device, characterized in that, The filling equipment includes an ejection mechanism (1) according to any one of claims 1 to 9, wherein the pusher plate (10) is configured to eject the package in the filling equipment to a downstream station.

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