Raw material crushing and recycling device for hard capsule production

Abstract

The invention discloses a raw material crushing and recycling device for hard capsule production, comprising: a support structure comprising a support frame; the cutting structure comprises a cutting cylinder, and a feeding pipe communicating the inside and the outside is fixedly connected to the side wall of the cutting cylinder; the smashing structure comprises a rectangular shell fixedly connected to the supporting frame, a feeding opening corresponding to the guide hopper is formed in the side wall of the rectangular shell, and a second rotating shaft is rotationally connected into the rectangular shell; the driving mechanism comprises a driving motor fixedly connected to the supporting frame. Through organic combination of the L-shaped cutting blade, two-stage material guiding and filtering, the crushing cavity with the material guiding plate, the liftable vibrating screen plate and single-motor double-belt synchronous transmission, the problems of poor uniformity, discontinuous recovery, loose structure and the like in the background technology are creatively solved; the invention provides a hard capsule raw material treatment device which is efficient, energy-saving, high in recovery rate and continuous in operation.

Description

Technical Field

[0001] This invention relates to the technical field of capsule production, and more particularly to a raw material crushing and recycling device for hard capsule production. Background Technology

[0002] In the production of hard capsules, raw materials such as gelatin and additives often need to be pulverized to achieve the required particle size and uniform mixing. Traditional raw material pulverization processes usually involve separate cutting (coarse crushing) and pulverizing (fine crushing) equipment in two steps. Materials need to undergo transfer and intermediate collection processes, resulting in low production efficiency and the generation of dust and spillage during the transfer process, causing waste and environmental pollution.

[0003] While some existing crushing equipment attempts to combine cutting and crushing functions, the following problems still exist: Insufficient uniformity of crushing: The cut material enters the crushing zone directly. Due to the uneven flow of the material, some larger particles enter the crushing process without being fully cut, resulting in uneven particle size in the final crushing and affecting the quality of subsequent capsule forming.

[0004] Low efficiency in separating and recovering qualified powder: During the crushing process, powder that meets the fineness requirements is mixed with particles that do not meet the requirements. Usually, the entire batch needs to be crushed before uniform screening is carried out, which not only prolongs the production cycle, but also makes it impossible to achieve immediate and continuous recovery of qualified powder.

[0005] Loose structure and high energy consumption: The cutting and crushing mechanism is often controlled by an independent drive unit, which has a complex transmission structure, occupies a large space, and has poor coordination, resulting in high overall energy consumption.

[0006] Material clogging is common: During the crushing process, fibrous or sticky materials can easily get tangled in the blades or clog the screen, requiring frequent shutdowns for cleaning and affecting the continuity of production.

[0007] Therefore, there is an urgent need to design an integrated device that can achieve continuous, efficient, and uniform crushing, has an instant graded recycling function, and is compact and operates in a coordinated manner to address the shortcomings of existing technologies. Summary of the Invention

[0008] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0009] In view of the problems existing in the raw material crushing and recycling devices for hard capsule production, the present invention is proposed.

[0010] Therefore, the purpose of this invention is to provide a raw material crushing and recycling device for hard capsule production. It creatively solves the problems of poor uniformity, discontinuous recycling, and loose structure mentioned in the background art by organically combining L-shaped cutting blades, two-stage material guiding filtration, crushing chamber with material guiding plate, lifting vibrating screen plate, and single motor double belt synchronous transmission. It provides a hard capsule raw material processing device that is efficient, energy-saving, has a high recovery rate, and can operate continuously.

[0011] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a raw material crushing and recycling device for hard capsule production, comprising: A support structure, comprising a support frame, the support frame being fixed together by an L-shaped bracket and a trapezoidal bracket; A cutting structure includes a cutting cylinder, a feed pipe with internal and external communication fixedly connected to the side wall of the cutting cylinder, a first rotating shaft rotatably connected inside the cutting cylinder, a plurality of cutting blades fixedly sleeved on the outside of the first rotating shaft, and a guide hopper communicating with the inside of the cutting cylinder fixedly connected to the side wall of the cutting cylinder, and a filter assembly is provided inside the guide hopper. The crushing structure includes a rectangular shell fixedly connected to a support frame. A feed inlet corresponding to the feed hopper is provided on the side wall of the rectangular shell. A second rotating shaft is rotatably connected inside the rectangular shell, and multiple crushing blades are evenly distributed and sleeved on the outer side wall of the second rotating shaft. A recycling component is provided inside the rectangular shell below the crushing blades. The drive mechanism includes a drive motor fixedly connected to a support frame. The drive motor is connected to a first rotating shaft and a second rotating shaft through a transmission assembly to achieve synchronous operation of the cutting structure and the crushing structure.

[0012] In a preferred embodiment of the raw material crushing and recycling device for hard capsule production according to the present invention, the guide hopper is inclined downward, and the filter assembly includes a first filter screen and a second filter screen fixedly connected in the guide hopper. The first filter screen is correspondingly disposed on one side of the cutting blade, and the second filter screen is disposed on the feed inlet side. The mesh diameters of the first filter screen and the second filter screen are the same.

[0013] As a preferred embodiment of the raw material crushing and recycling device for hard capsule production according to the present invention, wherein: the lower end of the guide hopper is fixedly connected to multiple first return pipes, and the feed end of the first return pipe extends to the inner side of the guide hopper and is adjacent to the position of the second filter screen, and the end of the first return pipe away from the guide hopper is connected to an external material extraction device.

[0014] As a preferred embodiment of the raw material crushing and recycling device for hard capsule production described in this invention, the cutting blade adopts an L-shaped structure and can tumble the raw material to ensure uniform cutting.

[0015] As a preferred embodiment of the raw material crushing and recycling device for hard capsule production according to the present invention, the crushing blade includes a disc fixedly sleeved on the outer wall of the second rotating shaft and crushing blades staggered between the discs, and the gap between the discs can play a role in uniformly crushing the raw materials.

[0016] As a preferred embodiment of the raw material crushing and recycling device for hard capsule production described in this invention, a limiting plate corresponding to the position of the crushing blade is fixedly connected to the inner wall of the rectangular shell, and an arc-shaped guide plate is fixedly connected to the side wall of the limiting plate to ensure that the raw material can be fully crushed.

[0017] As a preferred embodiment of the raw material crushing and recycling device for hard capsule production according to the present invention, the recycling component includes two electric push rods fixedly connected to the bottom wall of a rectangular shell, and the upper ends of the two electric push rods are fixedly connected to the same horizontal movable plate. The movable plate is evenly provided with a plurality of sieve holes for separating raw materials. A plurality of second return pipes and third return pipes are respectively provided on the rectangular shell side walls on the upper and lower sides of the movable plate, and the second return pipes and third return pipes are also connected to an external material extraction device.

[0018] In a preferred embodiment of the raw material crushing and recycling device for hard capsule production according to the present invention, the transmission assembly includes a first pulley fixedly sleeved on the outside of the drive shaft of the drive motor, a second pulley fixedly sleeved on the outer side wall of the second rotating shaft, a third pulley fixedly sleeved on the outer side wall of the first rotating shaft, the first pulley and the second pulley being connected by a first belt, the second pulley and the third pulley being connected by a second belt, and the second belt being correspondingly disposed on one side of the first belt.

[0019] The beneficial effects of this invention are: This invention achieves integrated continuous operation, improving production efficiency: by integrating the cutting and crushing structures onto the same support frame and synchronously driving them via a single drive motor and transmission components, continuous and automated processing of raw materials from coarse to fine crushing is realized. After cutting, the material can directly enter the crushing zone through the guide hopper without intermediate transfer, significantly shortening the production process and improving overall production efficiency.

[0020] This ensures thorough and uniform pulverization, improving product quality. The L-shaped cutting blade in the cutting structure can not only cut the raw material, but also tumble the material inside the cylinder, avoiding material accumulation and ensuring uniformity in the cutting stage.

[0021] The crushing blades in the crushing structure are a combination of discs and staggered blades, and an arc-shaped guide plate is set inside the shell. This design can guide the material to form a vortex in the crushing chamber, prolong the residence time of the material in the effective crushing area, and subject the material to multi-angle, repeated shearing and impact, thereby obtaining fine powder with a more concentrated and uniform particle size distribution.

[0022] It achieves multi-stage filtration and precise recycling, reducing raw material waste: Two-stage filters are installed between the cutting and crushing stages to intercept larger particles that do not meet the standards, ensuring that only materials that have passed the initial cutting can enter the crushing zone, thus improving crushing efficiency and quality stability.

[0023] A movable, liftable screen plate recovery assembly is installed at the bottom of the crushing zone. The lifting and lowering of the movable screen plate is controlled by an electric push rod, dynamically adjusting the screening intensity to prevent clogging. Powder that meets the fineness requirements passes through the screen holes and is immediately recovered (via the third return pipe), while particles that do not meet the requirements are blocked above the screen plate and can be returned to the crushing zone or the previous process for further processing via the second return pipe. This "crushing, screening, and recovery simultaneously" model achieves precise and immediate recovery of raw materials, minimizing waste.

[0024] Compact structure, coordinated operation, and easy maintenance: The support frame uses a combination of L-shaped and trapezoidal brackets, resulting in a stable structure that saves space. A belt pulley drive system synchronously and stably transmits the power of a single motor to the cutting and crushing shafts, ensuring speed matching and coordinated operation of the two core processes, reducing equipment complexity and energy consumption. Both the filtration and recovery components adopt a modular design, facilitating disassembly, cleaning, and maintenance. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the raw material crushing and recycling device for hard capsule production according to the present invention.

[0026] Figure 2 This is a schematic diagram of the internal structure of the raw material crushing and recycling device for hard capsule production according to the present invention.

[0027] Figure 3 This is a side view of the raw material crushing and recycling device for hard capsule production according to the present invention.

[0028] Figure 4This is a schematic diagram of the back structure of the raw material crushing and recycling device for hard capsule production of the present invention.

[0029] Figure 5 This is a schematic diagram of the transmission structure of the raw material crushing and recycling device for hard capsule production according to the present invention.

[0030] Figure 6 for Figure 2 A magnified view of a portion of point A in the middle. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0035] Reference Figures 1-6 A raw material crushing and recycling device for hard capsule production is provided, comprising: The support structure includes a support frame 100, which is fixed by an L-shaped bracket and a trapezoidal bracket. The cutting structure includes a cutting cylinder 200, a feed pipe 201 with internal and external communication fixedly connected to the side wall of the cutting cylinder 200, a first rotating shaft 202 rotatably connected inside the cutting cylinder 200, a plurality of cutting blades 203 fixedly sleeved on the outside of the first rotating shaft 202, and a guide hopper 204 communicating with the inside of the cutting cylinder 200 fixedly connected to the side wall of the cutting cylinder 200, and a filter assembly is provided inside the guide hopper 204. The crushing structure includes a rectangular shell 300 fixedly connected to a support frame 100. The side wall of the rectangular shell 300 is provided with a feed inlet corresponding to the guide hopper 204. A second rotating shaft 301 is rotatably connected inside the rectangular shell 300. Multiple crushing blades 302 are evenly distributed and sleeved on the outer side wall of the second rotating shaft 301. A recycling component is provided inside the rectangular shell 300 below the crushing blades 302. The drive mechanism includes a drive motor 400 fixedly connected to the support frame 100. The drive motor 400 is connected to the first rotating shaft 202 and the second rotating shaft 301 through a transmission assembly to realize the synchronous operation of the cutting structure and the crushing structure.

[0036] The feed hopper 204 is inclined downwards, and the filter assembly includes a first filter screen 205 and a second filter screen 206 fixedly connected in the feed hopper 204. The first filter screen 205 is correspondingly disposed on one side of the cutting blade 203, and the second filter screen 206 is disposed on the feed inlet side. The mesh diameter of the first filter screen 205 and the second filter screen 206 is the same.

[0037] Furthermore, the lower end of the feed hopper 204 is fixedly connected to multiple first return pipes 207, and the feed end of the first return pipe 207 extends to the inside of the feed hopper 204 and is adjacent to the position of the second filter screen 206. The end of the first return pipe 207 away from the feed hopper 204 is connected to an external material extraction device.

[0038] The cutting blade 203 has an L-shaped structure and can agitate the raw material to ensure uniform cutting. The crushing blade 302 includes a disc fixedly sleeved on the outer wall of the second rotating shaft 301 and crushing blades staggered between the discs. The gap between the discs can play a role in uniformly crushing the raw material. Specifically, a limiting plate corresponding to the position of the crushing blade 302 is fixedly connected to the inner wall of the rectangular shell 300, and an arc-shaped guide plate 303 is fixedly connected to the side wall of the limiting plate to ensure that the raw material can be fully crushed.

[0039] The recycling component includes two electric push rods 304 fixedly connected to the bottom wall of the rectangular housing 300. The upper ends of the two electric push rods 304 are fixedly connected to the same horizontal movable plate 305. Multiple sieve holes for separating raw materials are evenly distributed on the movable plate 305. Multiple second return pipes 306 and third return pipes 307 are respectively provided on the side walls of the rectangular housing 300 on the upper and lower sides of the movable plate 305. The second return pipes 306 and third return pipes 307 are also connected to an external material extraction device.

[0040] The transmission assembly includes a first pulley 401 fixedly sleeved on the outside of the drive shaft of the drive motor 400, a second pulley 402 fixedly sleeved on the outer side wall of the second rotating shaft 301, and a third pulley 403 fixedly sleeved on the outer side wall of the first rotating shaft 202. The first pulley 401 and the second pulley 402 are connected by a first belt 404, and the second pulley 402 and the third pulley 403 are connected by a second belt 405, with the second belt 405 correspondingly disposed on one side of the first belt 404.

[0041] Example The device in this embodiment includes a support frame 100. A cutting cylinder 200 is fixed to one side of the support frame 100, and a feed pipe 201 is provided on its upper part. A first rotating shaft 202 is horizontally supported inside the cutting cylinder 200 by bearings, and a plurality of L-shaped cutting blades 203 are mounted on its surface. When the first rotating shaft 202 rotates, the L-shaped blades can not only cut the fed block gelatin raw material, but their unique shape can also continuously tumble and propel the material, preventing clumping.

[0042] The bottom of the cutting cylinder 200 is connected to a downward-sloping guide hopper 204. A first filter screen 205 and a second filter screen 206 are sequentially installed inside the guide hopper 204, both with a mesh diameter of 5mm (adjustable according to the process). Only particles smaller than 5mm can pass through these two filters. Near the second filter screen 206, a first return pipe 207 is connected to the side wall of the guide hopper 204, which can guide any small amount of excessive particles that may accumulate back to the pre-processing stage.

[0043] Qualified particles passing through the filter screen enter the feed inlet of the rectangular housing 300, which is fixed to the support frame 100, through the outlet at the lower end of the feed hopper 204. A second rotating shaft 301 is provided inside the rectangular housing 300, on which crushing blades 302 are mounted. In this embodiment, the crushing blades 302 consist of multiple discs fixed to the second rotating shaft 301 and multiple staggered stainless steel blades vertically welded to the circumference of the discs. The gaps between the discs help to distribute the material evenly. On the inner wall of the rectangular housing 300, corresponding to the movement trajectory of the crushing blades 302, several arc-shaped guide plates 303 are fixed. The guide plates 303 can guide splashed material to the effective working area of ​​the crushing blades 302, forming a circulating crushing path.

[0044] A recycling assembly is located at the bottom of the rectangular housing 300. Two electric push rods 304 are fixed to the bottom wall of the housing and together push a horizontal movable plate 305. The movable plate 305 is covered with sieve holes with a diameter of 0.5 mm. A second return pipe 306 and a third return pipe 307 are respectively connected to the side walls of the housing above and below the movable plate 305.

[0045] The drive motor 400 is fixed to the support frame 100. A first pulley 401 on its output shaft is connected to a second pulley 402 on the second rotating shaft 301 via a first belt 404. A third pulley 403 is also provided on the coaxial side of the second pulley 402, and the third pulley 403 is connected to a driven pulley at one end of the first rotating shaft 202 via a second belt 405. Thus, the drive motor 400 simultaneously drives the cutting structure and the crushing structure to operate synchronously.

[0046] Working process: The drive motor 400 is started, and the raw material for hard capsules (such as block gelatin) is fed into the cutting cylinder 200 through the feed pipe 201. The cutting blade 203 rotates at high speed to perform coarse crushing. The crushed material falls into the guide hopper 204 under the influence of gravity and the movement of the blades. After being screened by two-stage filters, qualified particles enter the rectangular shell 300. The crushing blade 302 further crushes the material, and the guide plate 303 assists in fully crushing the material. The finely crushed powder falls onto the movable plate 305. Powder that reaches a fineness of 0.5mm passes through the sieve holes and is conveyed to the collection bin through the third return pipe 307. Particles that do not meet the standards remain on the movable plate 305. When a certain amount is accumulated, the electric push rod 304 can be activated to make the movable plate 305 vibrate or tilt, discharging these particles through the second return pipe 306 (they can be returned to the feed pipe or collected separately). The first return pipe 207 can be used to handle any abnormal accumulation in the guide hopper 204.

[0047] This embodiment creatively solves the problems of poor uniformity, discontinuous recycling, and loose structure mentioned in the background technology by organically combining L-shaped cutting blades, two-stage material guiding filtration, crushing chamber with material guiding plate, liftable vibrating screen plate, and single motor double belt synchronous transmission. It provides a high-efficiency, energy-saving, high-recovery-rate, and continuously operating hard capsule raw material processing device.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A raw material crushing and recycling device for hard capsule production, characterized in that, include: The support structure includes a support frame (100) which is fixed by an L-shaped bracket and a trapezoidal bracket; The cutting structure includes a cutting cylinder (200), a feed pipe (201) with internal and external communication is fixedly connected to the side wall of the cutting cylinder (200), a first rotating shaft (202) is rotatably connected inside the cutting cylinder (200), a plurality of cutting blades (203) are fixedly sleeved on the outside of the first rotating shaft (202), a guide hopper (204) communicating with the inside of the cutting cylinder (200) is fixedly connected to the side wall of the cutting cylinder (200), and a filter assembly is provided inside the guide hopper (204); The crushing structure includes a rectangular shell (300) fixedly connected to a support frame (100). The side wall of the rectangular shell (300) is provided with a feed inlet corresponding to the guide hopper (204). A second rotating shaft (301) is rotatably connected inside the rectangular shell (300). Multiple crushing blades (302) are evenly distributed on the outer side wall of the second rotating shaft (301). A recycling component is provided inside the rectangular shell (300) below the crushing blades (302). The drive mechanism includes a drive motor (400) fixedly connected to the support frame (100). The drive motor (400) is connected to the first rotating shaft (202) and the second rotating shaft (301) through a transmission assembly to realize the synchronous operation of the cutting structure and the crushing structure.

2. The raw material crushing and recycling device for hard capsule production according to claim 1, characterized in that: The feed hopper (204) is inclined downward. The filter assembly includes a first filter screen (205) and a second filter screen (206) fixedly connected in the feed hopper (204). The first filter screen (205) is correspondingly disposed on one side of the cutting blade (203), and the second filter screen (206) is disposed on the side of the feed inlet. The mesh diameters of the first filter screen (205) and the second filter screen (206) are the same.

3. The raw material crushing and recycling device for hard capsule production according to claim 2, characterized in that: The lower end of the feed hopper (204) is fixedly connected to multiple first return pipes (207), and the feed end of the first return pipe (207) extends to the inside of the feed hopper (204) and is adjacent to the position of the second filter screen (206). The end of the first return pipe (207) away from the feed hopper (204) is connected to an external material extraction device.

4. The raw material crushing and recycling device for hard capsule production according to claim 1, characterized in that: The cutting blade (203) has an L-shaped structure and can tumble the raw material to ensure uniform cutting.

5. The raw material crushing and recycling device for hard capsule production according to claim 1, characterized in that: The crushing blade (302) includes a disc fixedly sleeved on the outer wall of the second rotating shaft (301) and crushing blades staggered between the discs. The gap between the discs can play a role in uniformly crushing the raw materials.

6. The raw material crushing and recycling device for hard capsule production according to claim 5, characterized in that: A limiting plate corresponding to the position of the crushing blade (302) is fixedly connected to the inner wall of the rectangular shell (300), and an arc-shaped guide plate (303) is fixedly connected to the side wall of the limiting plate to ensure that the raw materials can be fully crushed.

7. The raw material crushing and recycling device for hard capsule production according to claim 5, characterized in that: The recycling assembly includes two electric push rods (304) fixedly connected to the bottom wall of the rectangular shell (300), and the upper ends of the two electric push rods (304) are fixedly connected to the same horizontal movable plate (305). The movable plate (305) is evenly provided with multiple sieve holes for separating raw materials. Multiple second return pipes (306) and third return pipes (307) are respectively provided on the side walls of the rectangular shell (300) on the upper and lower sides of the movable plate (305), and the second return pipes (306) and third return pipes (307) are also connected to an external material extraction device.

8. The raw material crushing and recycling device for hard capsule production according to claim 1, characterized in that: The transmission assembly includes a first pulley (401) fixedly sleeved on the outside of the drive shaft of the drive motor (400), a second pulley (402) fixedly sleeved on the outer side wall of the second shaft (301), a third pulley (403) fixedly sleeved on the outer side wall of the first shaft (202), the first pulley (401) and the second pulley (402) being connected by a first belt (404), the second pulley (402) and the third pulley (403) being connected by a second belt (405), and the second belt (405) being correspondingly disposed on one side of the first belt (404).

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