Discharge system and its extruder

Abstract

The present application discloses a kind of discharge system and its extruder.The extruder includes: a pair of rollers of extrusion device, the pair of rollers can be operatively clamped inner bag, and when doing relative reverse rotation, it applies extrusion force to the inner bag, the extruder further includes: transmission device, which is connected with the roller;Guide rod is vertically arranged, and is connected with the transmission device;And driving member is connected with the guide rod, drives the guide rod to rotate around its axis;Wherein the guide rod drives the transmission device when rotating, drives a pair of rollers to do relative reverse rotation, and is lifted and descended along the axis direction of the guide rod with the extrusion device.Compared with prior art, it makes the structure of the extruder simple, convenient to operate, and saves cost.

Description

TECHNICAL FIELD

[0001] The present application relates to a discharge device, in particular to a discharge system and a pusher thereof. BACKGROUND

[0002] Foreign patent US5765723A discloses a sealed liquid bag, the main part of which is a sealed soft container made of PVC coated cloth by hot melt welding or high frequency welding; the two ends of the sealed soft container are respectively provided with liquid inlet valves and liquid outlet valves. The liquid lining bag has good effect in general high flow rate and liquid flow, but the liquid discharge is slow and the efficiency is low in the discharge of viscous liquid.

[0003] Foreign patent IL156984A discloses a sealed liquid bag, the main part of which is a sealed soft container made of PVC coated cloth or PE film by hot melt welding or high frequency welding; the two ends of the sealed soft container are respectively provided with liquid inlet valves and liquid outlet valves; the main part further includes an auxiliary discharge gas bag, and the gas bag is provided with an air inlet for air charging. In the liquid discharge process, air is needed to be charged into the auxiliary gas bag to discharge the viscous liquid by the extrusion of the gas. The efficiency is low and the cost is increased.

[0004] Foreign patent US2015284181A1 discloses a sealed liquid bag, the main part of which is a sealed soft container made of PVC coated cloth or PE film by hot melt welding or high frequency welding; when discharging viscous liquid, a medium-sized bulk container for transporting liquid is used by a mechanical mechanism to make the bottom of the medium-sized bulk container inclined, and the discharge port is at the lowest point. This operation is time-consuming, low in efficiency and difficult to operate.

[0005] Foreign patent WO2011080402A1 discloses a liquid extrusion device for extruding viscous liquid. Before extrusion, the sealed liquid bag must be hung, and then the hung liquid bag is gradually pulled up according to the extrusion, and the extrusion is gradually completed. The extrusion device has large cost and space, and the operation is complex. This operation is time-consuming, low in efficiency and difficult to operate. SUMMARY

[0006] The purpose of the embodiment of the present application is to provide a discharge system and a pusher thereof, so that the structure of the pusher is simple, the operation is convenient, and the cost is saved.

[0007] To solve the above technical problems, the embodiment of the present application provides a pusher, which comprises: a pair of rollers, the pair of rollers being operable to clamp an inner lining bag and apply a pushing force to the inner lining bag when rotating in opposite directions, characterized in that the pusher further comprises:

[0008] a transmission device connected to the rollers;

[0009] a guide rod vertically arranged and connected with the transmission device; and

[0010] a driving member connected with the guide rod to drive the guide rod to rotate around its axis, wherein the guide rod drives the transmission device to drive a pair of rollers to rotate reversely when the guide rod rotates, and the pair of rollers and the pushing device are raised and lowered along the axis of the guide rod.

[0011] The embodiment of the present application also provides a discharge system, comprising a container and an inner liner bag arranged in the container, characterized in that the discharge system further comprises the pusher as described above, and the driving member of the pusher is arranged on the container.

[0012] Compared with the prior art, the embodiment of the present application has the transmission device, the guide rod and the driving member, the driving member is connected with the guide rod, the guide rod is connected with the transmission device, the driving member drives the guide rod to rotate around its axis, the transmission device connected with the guide rod drives a pair of rollers of the pushing device to rotate reversely, so as to extrude the inner liner bag and make the liquid in the inner liner bag be extruded out. Meanwhile, when the rollers are driven to extrude the inner liner bag, the rollers are lowered with the decrease of the liquid in the inner liner bag, the guide rod and the transmission device are lowered together with the rollers, so as to realize the extrusion of the liquid in the inner liner bag, and the pusher has simple structure, convenient operation and cost saving.

[0013] In an embodiment, the driving member comprises:

[0014] a connecting shaft vertically arranged with the guide rod;

[0015] a first reversing gear fixedly sleeved on the connecting shaft;

[0016] a second reversing gear sleeved on the guide rod and engaged with the first reversing gear, wherein the second reversing gear is operable to rotate to drive the guide rod to rotate, and the guide rod is slidably arranged along its axis with the second reversing gear.

[0017] In an embodiment, a guide sleeve is sleeved between the guide rod and the second reversing gear, the second reversing gear is fixed with the guide sleeve, and the guide rod is slidably connected with the guide sleeve along its axis.

[0018] In an embodiment, the inner wall of the guide sleeve is a polygonal inner wall.

[0019] The outer wall of the guide rod is a polygonal outer wall matched with the inner wall of the guide sleeve.

[0020] In an embodiment, a hand wheel is arranged on the connecting shaft.

[0021] In an embodiment, an electric power member is connected with the connecting shaft.

[0022] In an embodiment, the driving member further comprises a reduction gearbox, and the connecting shaft and the guide rod are connected to the reduction gearbox.

[0023] In an embodiment, the transmission device comprises:

[0024] a transmission shaft connected to the guide rod;

[0025] a worm connected to the transmission shaft;

[0026] a worm wheel coaxially fixed to any one of the rollers and engaged with the worm.

[0027] In an embodiment, a driving gear is coaxially fixed to the roller on which the worm wheel is sleeved, and a driven gear is coaxially fixed to the other roller; wherein the driven gear is engaged with the driving gear.

[0028] In an embodiment, the transmission device comprises:

[0029] a transmission assembly connected to any one of the rollers;

[0030] a flexible member connecting the transmission assembly and the guide rod. BRIEF DESCRIPTION OF DRAWINGS

[0031] One or more embodiments are illustrated by way of example in the figures that form a part of this patent document. These example embodiments demonstrate, but do not limit, the scope of the embodiments. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like elements. Drawings illustrating the embodiments are not necessarily to scale and the emphasis is placed upon the illustrative nature of the embodiments.

[0032] Figure 1 is a sectional view of the extruder in the container extruding the inner liner bag (initial state) of the embodiment in the present application;

[0033] Figure 2 is a sectional view of the extruder in the container extruding the inner liner bag (in process) of the embodiment in the present application;

[0034] Figure 3 is Figure 2 a partial enlarged view of A in FIG. 4;

[0035] Figure 4 is Figure 2 a partial enlarged view of B in FIG. 4;

[0036] Figure 5 is an exploded view of the extruder of the embodiment in the present application;

[0037] Figure 6 is a schematic view of the universal joint structure of the embodiment in the present application;

[0038] Figure 7 is the assembly sectional view of the guide rod and guide sleeve of the embodiment in the present application;

[0039] Figure 8 is the assembly sectional view of the guide rod and guide sleeve of another embodiment in the present application;

[0040] Figure 9 is the sectional view of the extrusion and pushing device of the embodiment in the present application;

[0041] Figure 10 is the structural schematic view of the discharge system of the embodiment in the present application;

[0042] wherein, 1, extrusion and pushing device; 2, inner liner bag; 3, guide rod; 41, connecting shaft; 42, first reversing gear; 43, second reversing gear; 5, speed reducer; 6, hand wheel; 7, guide sleeve; 81, transmission shaft; 82, worm; 83, worm gear; 84, universal joint; 9, container; 110, driving gear; 120, driven gear; 11, roller; 12, roller. DETAILED DESCRIPTION

[0043] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the embodiments of the present application, many technical details are proposed in order to make the readers better understand the present application. However, the technical scheme claimed by the present application can be realized even without these technical details and based on various changes and modifications of the following embodiments.

[0044] In the following description, for the purpose of illustrating various disclosed embodiments, specific details are set forth in order to provide a thorough understanding of various disclosed embodiments. However, persons of ordinary skill in the relevant arts will recognize that embodiments can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known devices, structures, and techniques have not been shown or described in order to avoid unnecessarily obscuring the description of embodiments.

[0045] Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise," "comprising," and the like are to be construed in an open, inclusive sense, as opposed to a closed or exclusive sense, so that, for example, the term "comprising" will be understood to mean "including but not limited to."

[0046] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrase "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0047] As used in this specification and the appended claims, the singular forms "a," "an" and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and / or" unless the context clearly dictates otherwise.

[0048] In the following description, for purposes of clarity, directional terms are used, such as forward, rearward, left, right, outer, inner, outwardly, inwardly, above, below, etc., to describe the present application. However, it is to be understood that these terms are only used as a matter of convenience and are not to be construed as limiting terms.

[0049] Terminology

[0050] Intermediate bulk container: composite intermediate bulk container (hereinafter referred to as IBC container) is a kind of packaging turnover container widely used in food, biochemical, pharmaceutical, chemical and other industries in international range. Because IBC container can be repeatedly used, it has obvious advantages in filling, storage and transportation, and compared with round barrel, IBC container can save 35% of storage space, the size conforms to ISO standard, not only suitable for aseptic packaging but also compact box, convenient for safe and efficient storage in large quantities, so it is widely used in the transportation, packaging and storage process of liquid, granular and sheet materials. At present, there are three kinds of existing specifications: 820L, 1000L and 1250L. Under normal circumstances, its composition structure includes plastic inner bag (inner liner bag), filling port, discharge device (valve or simple discharge port, etc.), side plate, base and cover plate.

[0051] The extruder of the present application comprises at least one pair of extruding members, such as at least two rollers. When it is necessary to discharge the liquid in the inner liner bag, the two rollers are clamped to hold the inner liner bag. Under the driving of the driving member, the pair of extruding members move relatively, such as the two rollers rotate in opposite directions, to apply an extruding force to the inner liner bag, thereby extruding and discharging the liquid in the inner liner bag. During the liquid discharging process, as the liquid in the inner liner bag decreases, the two rollers automatically descend with the liquid surface under the driving of the driving device and extrude the liquid.

[0052] In the embodiment of the present application, the extruder comprises an extruding device 1 with a pair of rollers, a transmission device, a guide rod 3 and a driving member, the pair of rollers are operable to hold the inner bag 2, the driving member is connected with the guide rod 3 to drive the guide rod 3 to rotate around its axis, the transmission device is connected with the guide rod 3 and the rollers, the guide rod 3 drives the transmission device to drive the pair of rollers to rotate reversely to extrude the inner bag 2. As the liquid in the inner bag 2 is extruded, the weight of the inner bag 2 is reduced, the rollers descend, and the guide rod 3 moves downward due to its own gravity and the downward thrust provided by the driving member when the driving member drives the guide rod 3, and then the driving force of the guide rod 3 to drive the transmission device is maintained.

[0053] As can be seen from the above, the extruder is provided with the transmission device, the guide rod 3 and the driving member, the driving member is connected with the guide rod 3, the guide rod 3 is connected with the transmission device, the driving member drives the guide rod 3 to rotate around its axis, and the transmission device connected with the guide rod 3 drives the pair of rollers of the extruding device 1 to rotate reversely to extrude the inner bag 2, so that the liquid in the inner bag 2 can be extruded. At the same time, as the liquid in the inner bag 2 is reduced, the rollers descend, and the guide rod 3 descends with the transmission device and the rollers, so that the liquid in the inner bag 2 is extruded, and the extruder has simple structure, convenient operation and cost saving.

[0054] Specifically, the driving member comprises a connecting shaft 41, a first reversing gear 42 and a second reversing gear 43, and the connecting shaft 41 is vertically arranged with the guide rod 3. The connecting shaft 41 penetrates into the speed reducer 5, and is fixed to the speed reducer 5 through a bearing and a circlip. The first reversing gear 42 is fixedly arranged on one end of the connecting shaft 41 penetrating into the speed reducer 5, and is coaxially arranged with the connecting shaft 41. The guide rod 3 penetrates through the speed reducer 5, and the second reversing gear 43 is arranged on the guide rod 3, coaxially arranged with the guide rod 3 and located in the speed reducer 5, and the second reversing gear 43 is engaged with the first reversing gear 42. The rotation of the connecting shaft 41 drives the first reversing gear 42 to rotate, the first reversing gear 42 drives the second reversing gear 43 to rotate, and the second reversing gear 43 drives the guide rod 3 to rotate. The connecting shaft 41 is provided with a hand wheel 6. Thus, the inner bag 2 can be manually extruded at any time on the side of the container 9, the structure is simple and light, and is convenient for the user to operate.

[0055] It can be understood that the connecting shaft 41 can also be arranged in the same direction as the guide rod 3, and the hand wheel 6 is fixed on the connecting shaft 41 and located at the upper end of the guide rod 3. The user can operate the hand wheel 6 to drive the extruder from above.

[0056] In addition, the connecting shaft 41 can also be connected with an electric power element, so that the connecting shaft 41 is driven to rotate by the electric power element. The electric power element can be a motor, and the main shaft of the motor is connected with the connecting shaft 41 through the connecting shaft 41. Of course, the electric power element can also be other electric structures.

[0057] Further, a guide sleeve 7 is sleeved between the guide rod 3 and the second reversing gear 43, the guide sleeve 7 is fixed on the speed reducer 5 through a bearing and a circlip, the second reversing gear 43 is fixed with the guide sleeve 7, and the guide rod 3 is slidably connected with the guide sleeve 7 along the axial direction of the guide rod 3. The inner wall of the guide sleeve 7 is a polygonal wall, and the outer wall of the guide rod 3 is a polygonal wall matched with the inner wall of the guide sleeve 7. That is to say, when the guide rod 3 is a hexagonal prism rod, the guide sleeve 7 is a hexagonal hole, the guide rod 3 passes through the guide sleeve 7, and the guide sleeve 7 drives the guide rod 3 to rotate while the guide rod 3 can slide up and down, so that the guide rod 3 always provides stable power to the transmission device. It can be understood that the guide rod 3 can be a pentagonal prism rod, the guide sleeve 7 is a pentagonal hole, and the guide rod 3 and the guide sleeve 7 are matched. In addition, the inner wall of the hole of the guide sleeve 7 can be partially flat, and the outer wall of the guide rod 3 can also be partially flat, the flat outer wall of the guide rod 3 abuts against the flat inner wall of the guide sleeve 7, and the guide sleeve 7 drives the guide rod 3 to rotate.

[0058] Further, the transmission device comprises a transmission assembly and a flexible element, and the flexible element connects the transmission assembly and the guide rod 3. The transmission assembly comprises a transmission shaft 81, a worm 82 and a worm wheel 83, the transmission shaft 81 connects the flexible element and the worm 82, the worm wheel 83 is engaged with the worm 82, and the worm wheel 83 is coaxially fixed with the roller shaft 11. The guide rod 3 drives the flexible element to rotate, the flexible element drives the transmission shaft 81 to rotate, the worm 82 is driven by the transmission shaft 81, the worm 82 drives the worm wheel 83 to rotate, and the worm wheel 83 drives the roller shaft to rotate. The driving gear 110 is coaxially fixed on the roller shaft 11, the driven gear 120 is coaxially fixed on the roller shaft 12, and the driven gear 120 is engaged with the driving gear 110. After the roller shaft 11 rotates, the driving gear 110 drives the driven gear 120 to rotate, so that the roller shaft 12 also rotates, thereby realizing the rotation and extrusion of the two roller shafts on the inner liner bag 2. The flexible element can be a universal joint 84. Thus, the flexible direction during operation is prevented, and the problem of being stuck is eliminated by using the universal joint 84. The universal joint 84 can be externally sleeved with a spring, so that the universal joint 84 can operate within a certain flexible range and is not prone to being stuck, and the reversing size can be arbitrarily set according to the transmission ratio. It can be understood that the flexible element can also be a spring element.

[0059] In some embodiments, the flexible element can be omitted, the transmission shaft 81 connects the guide rod 3 and the worm 82, the guide rod 3 drives the transmission shaft 81 to rotate, the worm 82 is driven by the transmission shaft 81, the worm 82 drives the worm wheel 83 to rotate, and the worm wheel 83 drives the roller shaft 11 to rotate.

[0060] In another embodiment of the present application relates to a discharge system comprising a container 9, an inner liner bag 2 disposed within the container 9, the pusher described above, the drive member of the pusher disposed on the container 9, a reduction gear disposed on the top of the container 9, the guide rod 3 extending downwardly within the container 9 through the reduction gear, and a hand wheel 6 mounted on the outside of the side wall of the container 9.

[0061] The preferred embodiments of the application have been described above with the benefit of particularity. It is to be understood that if desired, aspects of the embodiments can be modified to employ aspects, features and concepts of various patents, applications and publications, to provide additional embodiments.

[0062] These and other changes can be made to the embodiments in light of the above Detailed Description. The terms used in the following claims should not be construed to limit the application to the particular embodiments disclosed in the specification and the claims are to include all embodiments which would be treated as equivalent to those claimed by the application.

[0063] It will be appreciated by persons skilled in the art that the present application is not limited to what has been particularly shown and described hereinabove. The above description has been presented for purposes of illustration and description only. It is not intended to be exhaustive or to limit the application to the precise form described, and many modifications and variations are possible in light of this disclosure.

Claims

1. A pusher, comprising: A pushing device having a pair of rollers operably clamping an inner liner bag and applying a pushing force to the inner liner bag during relative reverse rotation, characterized in that the pushing device further comprises: The transmission device is connected to the roller; The guide rod is vertically arranged and connected to the transmission device; and A driving component, connected to the guide rod, drives the guide rod to rotate around its axis; wherein, when the guide rod rotates, it drives the transmission device to drive a pair of rollers to rotate in opposite directions, and moves up and down with the extrusion device along the axial direction of the guide rod; the driving component includes: a connecting shaft, which is arranged perpendicularly to the guide rod; the connecting shaft is provided with a manual operation component; The transmission device includes: The transmission assembly connects to any one of the rollers; A flexible component connects the transmission assembly and the guide rod; the flexible component is a flexible universal joint.

2. The extruder according to claim 1, characterized in that, The driving component includes: The first reversing gear is fixedly sleeved on the coupling shaft; The second reversing gear is sleeved on the guide rod and meshes with the first reversing gear; wherein the second reversing gear rotates operably to drive the guide rod to rotate, and the guide rod slides along its axial direction with the second reversing gear.

3. The extruder according to claim 2, characterized in that, A guide sleeve is provided between the guide rod and the second reversing gear. The second reversing gear is fixed to the guide sleeve, and the guide rod is slidably connected to the guide sleeve along its axial direction.

4. The extruder according to claim 3, characterized in that, The inner wall of the guide sleeve is an inner polygonal wall surface; The outer wall surface of the guide rod is an outer polygonal wall surface that matches the inner wall of the guide sleeve.

5. The extruder according to claim 4, characterized in that, A handwheel is provided on the coupling.

6. The extruder according to claim 2, characterized in that, An electric power component is connected to the coupling.

7. The extruder according to claim 2, characterized in that, The drive component further includes a reduction gearbox, and the coupling shaft and the guide rod are connected to the reduction gearbox.

8. The extruder according to claim 1, characterized in that, The transmission device includes: The drive shaft is connected to the guide rod; The worm gear is connected to the drive shaft; The worm gear is fixed coaxially with any one of the rollers and meshes with the worm.

9. The extruder according to claim 8, characterized in that, A drive gear is coaxially fixed on one of the rollers on which the worm gear is mounted, and a driven gear is coaxially fixed on the other roller; wherein the driven gear meshes with the drive gear.

10. An emission system, comprising: A container and an inner liner bag disposed within the container, characterized in that the discharge system further includes: a pusher as described in any one of claims 1-9, wherein the drive element of the pusher is disposed on the container.

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