Sheet discharging mechanism

Abstract

The utility model relates to the technical field of tablet press, especially, relate to a tablet outlet mechanism. The tablet outlet mechanism includes frame, the tablet outlet groove of oblique arrangement on frame and the baffle assembly of arrangement in tablet outlet groove. The baffle assembly includes the first swing baffle and the first fixed plate of the oblique direction of first swing baffle and first fixed plate of arrangement in proper order along the tablet outlet groove, first fixed plate will the tablet outlet groove divide into first passageway and second passageway. When needing to sort waste tablet, first swing baffle switches to second swing position, and second swing baffle swings and opens waste tablet entrance, forms closed waste tablet passageway, avoids waste tablet mistake and enters qualified product passageway. When needing to sort qualified tablet, first swing baffle is located in first swing position, and first passageway mouth opens, forms qualified product passageway. In addition, because waste tablet entrance is located in the middle part of first passageway, therefore, waste tablet box can be directly arranged below first passageway, is favorable to reducing the volume of tablet outlet mechanism, further optimizes the space utilization.

Description

Technical Field

[0001] This utility model relates to the technical field of tablet presses, and in particular to a tablet dispensing mechanism. Background Technology

[0002] As a core dosage form in the pharmaceutical, food, and chemical industries, the consistency of tablet quality directly affects the safety and efficacy of products. In industrial production, tablet presses are the core equipment for high-speed compression molding of powder materials. Through a die system, high pressure is applied to the powder filling the die holes to form tablets with a predetermined shape and density.

[0003] After the tablets are formed, they are ejected through a tablet ejection mechanism. The tablet ejection mechanism has a tablet ejection channel and a waste tablet channel. During the tablet ejection process, the tablet ejection mechanism will pick out the tablets that have been marked as waste tablets and guide them to the waste tablet container at the end of the waste tablet channel through the waste tablet channel. The qualified tablets will be guided to the qualified tablet container at the end of the channel through the tablet ejection channel.

[0004] However, the tablet ejection mechanism in the existing technology is relatively large, which is not conducive to the miniaturization of the tablet press, and it is easy to mistakenly guide waste tablets into qualified tablet containers during the tablet ejection process. Utility Model Content

[0005] The purpose of this invention is to provide a tablet dispensing mechanism that reduces the size of the dispensing mechanism and prevents waste tablets from being mistakenly guided into qualified tablet containers.

[0006] To solve the above-mentioned technical problems, this utility model provides a film output mechanism.

[0007] The film output mechanism of this utility model includes:

[0008] frame,

[0009] The film output slot is arranged at an angle on the frame;

[0010] A baffle assembly is arranged in the film outlet slot. The baffle assembly includes a first swing baffle and a first fixed plate arranged sequentially along the inclined direction of the film outlet slot. The first fixed plate divides the film outlet slot into a first channel and a second channel. The first swing baffle has a first swing position for blocking the entrance of the first channel and a second swing position for blocking the entrance of the second channel.

[0011] The first channel has a waste film inlet in the middle for waste films to slide in. The waste film inlet is connected to a waste film box located below the first channel. A second swing baffle for opening or closing the waste film inlet is provided at the waste film inlet. The second swing baffle is located below the first swing baffle. When the first swing baffle is in the second swing position and the waste film inlet is open, a waste film channel for waste films to slide in is formed.

[0012] Furthermore, the swing axis of the second swing baffle extends horizontally, and when the waste inlet is opened, the second swing baffle blocks the first channel.

[0013] Furthermore, it also includes a third swing baffle, which is located below the first fixed plate, and the third swing baffle has a third swing position and a fourth swing position;

[0014] When the third swing baffle is in the third swing position, it divides the film outlet slot into a first channel and a second channel. When the third swing baffle is in the fourth swing position, it blocks part of the second channel and connects the first channel and another part of the second channel to form a sampling channel.

[0015] When the first swing plate is in the first swing position and the third swing baffle is in the third swing position, a film output channel is formed.

[0016] Furthermore, when the third swing baffle is in the third swing position, the upper end of the third swing baffle is higher than the lower end of the first fixed plate so that it is limited by the first fixed plate.

[0017] Furthermore, the portion of the first fixed plate that fits against the third swing baffle is provided with a clearance groove, so that when the third swing baffle is in the third swing position, the third swing baffle and the first fixed plate are flush with the side facing the second channel.

[0018] Furthermore, it also includes a second fixing plate, which is located below the third swing baffle and whose end is flush with the end of the film outlet groove. It cooperates with the first fixing plate to divide the film outlet groove into a first channel and a second channel.

[0019] Furthermore, the frame is equipped with a sampling rotary cylinder for driving the third swing baffle to swing.

[0020] Furthermore, the frame is equipped with a sheet ejection rotary cylinder for driving the first swing plate to swing and a waste sheet rotary cylinder for driving the second swing baffle to swing.

[0021] Furthermore, the film output slot is covered with a cover plate.

[0022] Furthermore, the frame includes a base, support columns, and support plates arranged sequentially from bottom to top, the waste film box is located on the base, and there are multiple support columns arranged at intervals along the circumference of the waste film box.

[0023] Compared with the prior art, the present invention has at least the following beneficial effects:

[0024] When it is necessary to sort out defective sheets, the first swing baffle switches to the second swing position, and the second swing baffle swings to open the defective sheet inlet, forming a closed defective sheet channel to prevent defective sheets from accidentally entering the qualified sheet channel. When it is necessary to sort out qualified sheets, the first swing baffle is in the first swing position, and the first channel opening is opened to form the qualified sheet channel. In addition, since the defective sheet inlet is located in the middle of the first channel, the defective sheet box can be directly arranged below the first channel, which helps to reduce the size of the sheet dispensing mechanism and further optimizes space utilization. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of one embodiment of the film output mechanism of this utility model;

[0026] Figure 2 for Figure 1 Side view of the film output mechanism;

[0027] Figure 3 for Figure 1 A schematic diagram showing the state of the film output mechanism when the frame is hidden and a film output channel is formed.

[0028] Figure 4 for Figure 1 A schematic diagram showing the state of the film output mechanism when the frame is hidden and a waste film channel is formed.

[0029] Figure 5 for Figure 1 A schematic diagram showing the state of the output mechanism when it hides the frame and forms a sampling channel.

[0030] Figure label:

[0031] 10. Frame; 11. Waste film box; 12. Base; 13. Support column; 14. Support plate; 15. Vertical plate;

[0032] 20. Film output slot; 21. First channel; 22. Second channel; 23. Waste film inlet;

[0033] 31. First swing baffle; 32. First fixed plate; 33. Second swing baffle; 34. Third swing baffle; 35. Clearance groove; 36. Second fixed plate;

[0034] 41. Sampling rotary cylinder; 42. Film ejection rotary cylinder; 43. Waste film rotary cylinder.

[0035] 51. Cover plate. Detailed Implementation

[0036] The film output mechanism of this utility model will be described below with reference to the schematic diagrams, which illustrate preferred embodiments of this utility model. It should be understood that those skilled in the art can modify the utility model described herein while still achieving the advantageous effects of this utility model. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit this utility model. Based on the teachings of this specification, those skilled in the art can form new technical solutions through cross-combination of different implementation methods without creating technical contradictions; such modifications should all be considered to fall within the protection scope of this patent.

[0037] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for 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. Therefore, they should not be construed as limitations on this utility model.

[0038] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly.

[0040] For example, a "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, the term "electrical connection" can refer to a direct electrical connection or an indirect electrical connection through an intermediate medium.

[0041] The present invention will be described more specifically by way of example in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0042] The following is in conjunction with the instruction manual appendix. Figure 1 To be continued Figure 5 The film output mechanism of this utility model will be introduced.

[0043] In some of these embodiments, such as Figure 1 and Figure 2 As shown, the film output mechanism includes a frame 10, a film output slot 20 inclinedly arranged on the frame 10, and a baffle assembly arranged in the film output slot 20.

[0044] The baffle assembly includes a first swing baffle 31 and a first fixed plate 32 arranged sequentially along the inclined direction of the film outlet slot 20; the first fixed plate 32 divides the film outlet slot 20 into a first channel 21 and a second channel 22; the first swing baffle 31 has a first swing position for blocking the entrance of the first channel 21 and a second swing position for blocking the entrance of the second channel 22. Figure 3 As shown, when the first swing baffle 31 blocks the entrance of the first channel 21, a tablet exit channel can be formed for qualified tablets to slide in.

[0045] like Figure 4 As shown, a waste film inlet 23 for waste films to slide into is provided in the middle of the first channel 21. The waste film inlet 23 is connected to the waste film box 11 located below the first channel 21. A second swing baffle 33 for opening or closing the waste film inlet 23 is provided at the waste film inlet 23. The second swing baffle 33 is located below the first swing baffle 31. When the first swing baffle is in the second swing position and the waste film inlet 23 is open, a waste film channel for waste films to slide into is formed.

[0046] In this application, the frame 10 serves as a supporting structure; the inclined tablet ejection slot 20 allows tablets to slide due to gravity; the first fixed plate 32 separates the channels; the first swing baffle 31 guides the tablet flow through dual-station switching; the waste tablet inlet 23 and the waste tablet box 11 constitute a waste tablet collection system; and the second swing baffle 33 controls the opening and closing of the waste tablet inlet 23. These technical features work together to achieve space utilization through a dual-baffle layout (the first swing baffle 31 controls the main channel switching from above, and the second swing baffle 33 controls the waste tablet inlet 23 from below). This reduces the height of the mechanism and ensures that waste tablets can only enter the designated channels through the linkage of the two baffles. When waste tablets need to be sorted, the first swing baffle 31 switches to the second swing position, and the second swing baffle 33 swings to open the waste tablet inlet 23, forming a closed waste tablet channel to prevent waste tablets from accidentally entering the qualified product channel. When qualified tablets need to be sorted, the first swing baffle 31 is in the first swing position, and the second channel 22 opens, forming a qualified product channel. In addition, since the waste film inlet 23 is located in the middle of the first channel 21, the waste film box 11 can be directly arranged below the first channel 21, which helps to reduce the volume of the film output mechanism and further optimize the space utilization.

[0047] The first swing baffle 31 can be driven by electromagnetic or pneumatic force to swing, with a preferred swing angle range of 30-60 degrees. The swing axis of the second swing baffle 33 can be configured as a horizontally extending rotating shaft structure. The opening size of the waste tablet inlet 23 can be adjusted according to the tablet size. The waste tablet box 11 can adopt a drawer-type structure for easy cleaning, and a cushioning pad can be provided at the bottom of the box to reduce tablet breakage. The tilt angle of the tablet outlet 20 is preferably 25-60 degrees to ensure smooth tablet sliding.

[0048] In some embodiments, the swing axis of the second swing baffle 33 extends in the horizontal direction, and when the waste inlet 23 is opened, the second swing baffle 33 blocks the first channel 21.

[0049] The horizontally extending swing shaft can be a cylindrical metal shaft or a polymer shaft, with both ends fixed to the frame 10 by bearings or bushings. The second swing baffle 33 can be made of stainless steel or engineering plastic, and its length should at least cover the entire width of the first channel 21. The connection between the second swing baffle 33 and the swing shaft can be keyway fit, set screw fixing, or integral injection molding. As an alternative, the swing shaft can also be designed as a segmented structure, consisting of multiple short shafts connected by couplings.

[0050] The horizontal swing axis arrangement ensures that the baffle's movement trajectory and the waste film's sliding path do not interfere with each other, allowing the waste film to smoothly slide into the waste film box 11 along the inclined waste film inlet 23. Furthermore, the directional movement of a single component achieves the dual functions of channel switching and waste film diversion, significantly simplifying the mechanical structure and improving operational reliability.

[0051] In some embodiments, the film output mechanism further includes a third swing baffle 34, which is located below the first fixed plate 32, and has a third swing position and a fourth swing position.

[0052] When the third swing baffle 34 is in the third swing position, it divides the film outlet slot 20 into a first channel 21 and a second channel 22, such as Figure 5 As shown, when the third swing baffle 34 is in the fourth swing position, it blocks part of the second channel 22 and connects the first channel 21 and another part of the second channel 22 to form a sampling channel.

[0053] like Figure 3 As shown, when the first swing plate is located at the first swing position and the third swing baffle 34 is located at the third swing position, a film output channel is formed.

[0054] By adding a third swing baffle 34 with dual working positions, a linkage mechanism is formed with the first swing plate. In normal film output mode, the third swing baffle 34 maintains the third swing position, together with the first swing plate to construct a standard film output channel; when sampling is required, the channel direction can be reconstructed simply by switching the third swing baffle 34 to the fourth swing position, forming a dedicated sampling path. This design achieves mechanism reuse and avoids the space occupation problem caused by adding independent sampling components. The channel switching process only requires the swing action of a single component, the mechanical structure is simple and reliable, and the switching response time is short.

[0055] Furthermore, in some embodiments, when the third swing baffle 34 is in the third swing position, the upper end of the third swing baffle 34 is higher than the lower end of the first fixed plate 32 so as to be limited by the first fixed plate 32.

[0056] Stable positioning is achieved through a mechanical limiting structure. When the third swing baffle 34 swings to the third swing position, its upper part forms a physical contact constraint with the first fixed plate 32, effectively preventing displacement deviation caused by equipment vibration or material impact. Through simple structural improvements, the reliability of channel separation is ensured while avoiding the introduction of complex positioning mechanisms, which is conducive to the miniaturization of the equipment.

[0057] Furthermore, in some of these embodiments, such as Figure 5 As shown, the portion of the first fixing plate 32 that fits against the third swing baffle 34 is provided with a clearance groove 35, so that when the third swing baffle 34 is in the third swing position, the third swing baffle 34 and the first fixing plate 32 are flush with the side facing the second channel 22.

[0058] The specific implementation methods of the clearance groove 35 include, but are not limited to: forming a rectangular groove on the side of the fixed plate by milling, with the groove depth matching the thickness of the swing plate; or forming an arc-shaped recessed structure on the metal sheet by stamping. A wear-resistant coating can be applied to the contact surface between the groove bottom and the swing plate.

[0059] Through the structural design of the clearance groove 35, when the third swing baffle 34 swings to the third swing position, the side of the swing plate and the side of the fixed plate form a continuous plane, preventing tablets from getting stuck in the gap. Specifically, when the swing plate is in the working position, part of its structure is embedded in the clearance groove 35, and the groove wall forms a three-dimensional limit on the swing plate, thereby eliminating the sealing problem caused by machining tolerances and assembly gaps between traditional baffles.

[0060] In some embodiments, the film ejection mechanism further includes a second fixing plate 36, which is located below the third swing baffle 34 and whose end is flush with the end of the film ejection slot 20. The second fixing plate 36, in conjunction with the first fixing plate 32, divides the film ejection slot 20 into a first channel 21 and a second channel 22. The second fixing plate 36 can be made of metal sheet or engineering plastic. During installation, the second fixing plate 36 is fixed to the bottom of the film ejection slot 20 with bolts, and is spaced apart from the first fixing plate 32 along the same plane. By adding the second fixing plate 36 and making its end flush with the end of the film ejection slot 20, the channel length is extended, making the boundaries between the channels more clearly defined.

[0061] In some embodiments, the frame 10 is provided with a sampling rotary cylinder 41 for driving the third swing baffle 34 to swing. The frame 10 is also provided with a sheet ejection rotary cylinder 42 for driving the first swing plate to swing and a waste sheet rotary cylinder 43 for driving the second swing baffle 33 to swing.

[0062] The rotary cylinder features fast response and high positioning accuracy, ensuring rapid and accurate positioning of the oscillating plate between two workstations. Compared to the drive method using a motor and reducer, pneumatic drive offers advantages such as simple structure and convenient maintenance, while avoiding the overload risks associated with motor drive. By integrating the drive components onto the frame 10, a compact design of the overall sheet output mechanism is achieved, facilitating equipment miniaturization. Furthermore, the buffering characteristics of the pneumatic system effectively reduce mechanical impact during the oscillation process, extending the service life of the oscillating plate.

[0063] In some embodiments, the tablet dispensing slot 20 is covered with a cover plate 51. The cover plate 51 may be made of transparent acrylic or a perforated metal plate, wherein the transparent material facilitates observation of the internal tablet conveying status, and the perforated structure allows airflow exchange while ensuring sealing. A sealing strip may be provided on the edge of the cover plate 51 to form an interference fit with the tablet dispensing slot 20 to enhance the dustproof effect.

[0064] By creating a closed conveying environment through physical barriers, when the film outlet 20 is in an inclined working state, the cover plate 51 can effectively prevent external dust and impurities from entering the conveying channel.

[0065] Furthermore, in some of these embodiments, such as Figure 1 As shown, the frame 10 includes a base 12, support columns 13 and support plates 14 arranged sequentially from bottom to top. The waste film box 11 is located on the base 12, and there are multiple support columns 13 arranged at intervals along the circumference of the waste film box 11.

[0066] Preferably, the base 12 is a rectangular steel plate or cast platform structure used to support the load of the waste film box 11 and the dispersing frame 10. The support columns 13 are preferably 4-8 cylindrical stainless steel pipes, bolted to the base 12 via flanges. The support plate 14 is an aluminum alloy plate, and a vertical plate 15 for supporting the film outlet slot 20 is provided on the support plate 14. In a preferred embodiment, the support columns 13 are distributed at equal angles around the waste film box 11. Furthermore, an anti-slip rubber pad can be provided at the bottom of the base 12, and damping material can be filled inside the support columns 13 to enhance shock absorption performance.

[0067] This technical solution achieves space optimization through a three-layer modular structure. The base 12 integrates the waste film collection function, and the circumferentially distributed support columns 13 form a stable triangular support system. The ring layout of multiple support columns 13 not only ensures the horizontality of the installation plane of the film outlet slot 20, but also provides double-sided operating space for the waste film box 11.

[0068] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A film output mechanism, characterized in that, include: frame, The film output slot is arranged at an angle on the frame; A baffle assembly is arranged in the film outlet slot. The baffle assembly includes a first swing baffle and a first fixed plate arranged sequentially along the inclined direction of the film outlet slot. The first fixed plate divides the film outlet slot into a first channel and a second channel. The first swing baffle has a first swing position for blocking the entrance of the first channel and a second swing position for blocking the entrance of the second channel. The first channel has a waste film inlet in the middle for waste films to slide in. The waste film inlet is connected to a waste film box located below the first channel. A second swing baffle for opening or closing the waste film inlet is provided at the waste film inlet. The second swing baffle is located below the first swing baffle. When the first swing baffle is in the second swing position and the waste film inlet is open, a waste film channel for waste films to slide in is formed.

2. The film output mechanism according to claim 1, characterized in that, The swing axis of the second swing baffle extends horizontally, and when the waste inlet is opened, the second swing baffle blocks the first channel.

3. The film output mechanism according to claim 1, characterized in that, It also includes a third swing baffle, which is located below the first fixed plate, and the third swing baffle has a third swing position and a fourth swing position; When the third swing baffle is in the third swing position, it divides the film outlet slot into a first channel and a second channel. When the third swing baffle is in the fourth swing position, it blocks part of the second channel and connects the first channel and another part of the second channel to form a sampling channel. When the first swing plate is in the first swing position and the third swing baffle is in the third swing position, a film output channel is formed.

4. The film output mechanism according to claim 3, characterized in that, When the third swing baffle is in the third swing position, the upper end of the third swing baffle is higher than the lower end of the first fixed plate so that it is limited by the first fixed plate.

5. The film output mechanism according to claim 4, characterized in that, The portion of the first fixed plate that fits against the third swing baffle is provided with a clearance groove, so that when the third swing baffle is in the third swing position, the third swing baffle and the first fixed plate are flush with the side facing the second channel.

6. The film output mechanism according to claim 3, characterized in that, It also includes a second fixing plate, which is located below the third swing baffle and whose end is flush with the end of the film outlet groove. Together with the first fixing plate, the film outlet groove is divided into a first channel and a second channel.

7. The film output mechanism according to claim 3, characterized in that, The frame is equipped with a sampling rotary cylinder for driving the third swing baffle to swing.

8. The film output mechanism according to claim 1, characterized in that, The frame is equipped with a sheet-ejection rotary cylinder for driving the first oscillating plate to oscillate and a waste sheet rotary cylinder for driving the second oscillating baffle to oscillate.

9. The film output mechanism according to claim 1, characterized in that, The film output slot is covered with a cover plate.

10. The film output mechanism according to claim 1, characterized in that, The frame includes a base, support columns, and support plates arranged sequentially from bottom to top. The waste film box is located on the base, and there are multiple support columns arranged at intervals along the circumference of the waste film box.

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