Discharging machine capable of preventing materials from being stuck
By combining a reverse-rotation pushing anti-jamming mechanism with dynamic crushing blades, the problem of leafy and herbaceous materials getting stuck in the discharge device is solved, realizing dynamic material guidance and precise control, and improving the stability and accuracy of the discharge machine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-05
- Publication Date
- 2026-04-14
AI Technical Summary
Existing screw-type discharge devices are prone to arching and jamming in the continuous conveying of loose materials such as leaves, flowers and grasses, and cannot detect blockages in real time, resulting in unstable production and equipment overload.
The reverse rotation pusher anti-jamming mechanism is combined with dynamic crushing blades. The reverse rotation screw pushes the material back into the hopper and cuts and breaks it up. Combined with the bridge breaking component and weighing component, the dynamic guidance and precise control of the material are realized.
It effectively prevents material from jamming at the discharge port, improves the stability and accuracy of conveying, reduces the jamming rate, extends the equipment life, and improves the continuity and accuracy of material discharge.
Smart Images
Figure CN224117988U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical device technology, and more specifically, to a material discharge machine that prevents material jamming. Background Technology
[0002] Existing screw-type discharge devices face significant technical bottlenecks in the continuous conveying of fluffy materials such as leaves, flowers, and grasses. These materials are characterized by high fiber bulk, sensitivity to moisture content, and high viscosity. Under traditional single-screw extrusion conditions, the following technical defects mainly exist: First, the material is prone to forming an arching effect in the transition area from the compression section to the discharge section. Due to the lack of a dynamic guiding mechanism, the material experiences periodic jamming at the discharge port, seriously affecting the stability of continuous production. Second, the traditional screw structure adopts a single rotary pushing mechanism, with a fixed geometric relationship between the helix angle and the screw groove depth. Under conditions of varying material moisture content or fiber entanglement, it cannot achieve real-time detection of blockage points, nor does it have an active shearing and dispersing function. This leads to the continuous accumulation of material agglomerates in the compression chamber, ultimately causing equipment overload and shutdown.
[0003] There is currently no effective solution to the above problems. Utility Model Content
[0004] The main purpose of this application is to provide a material discharge machine that prevents material jamming, so as to solve the technical problem that material discharge machines in the prior art are prone to jamming.
[0005] To achieve the above objectives, this application provides a material discharge machine with anti-jamming features, including a hopper for storing materials; a bridging component disposed inside or above the hopper for breaking up and bridging the materials to prevent them from bridging and accumulating in the hopper; a screw discharge component disposed inside the hopper and below the bridging component, comprising at least one screw and at least one discharge port corresponding to the at least one screw, for conveying the materials from the hopper to the corresponding discharge port and pushing them out through the rotation of the at least one screw; and a discharge back-pushing component comprising: a reverse rotation pushing anti-jamming mechanism for pushing the accumulated materials back into the hopper from the discharge port when materials accumulate at the at least one discharge port; and dynamic crushing blades that rotate together with the reverse rotation pushing anti-jamming mechanism to cut and break up the materials accumulated at the at least one discharge port. This embodiment solves the technical problem of material jamming at the discharge port through the back-pushing component and the blade crushing structure.
[0006] In some embodiments, the reverse rotation pushing anti-jamming mechanism includes: a power motor, disposed outside the hopper, for driving a reverse screw to rotate in the opposite direction to the rotation direction of the at least one screw; and a reverse screw, disposed in the same direction as the at least one screw, one end of which is fixedly connected to the output shaft of the power motor, passes through the side wall of the hopper and extends into the hopper, and the other end passes through the opposite side wall of the hopper and extends outside the hopper, wherein the helical blades of the reverse screw are disposed at a section away from the power motor, for pushing the accumulated material back into the hopper from the discharge port. This embodiment achieves efficient material return through the reverse rotation screw, reduces discharge obstruction, and ensures smooth conveying.
[0007] In some embodiments, the dynamic crushing blade is disposed at the end of the reverse screw away from the power motor, located outside the hopper, and can rotate in the opposite direction with the reverse screw to cut and break up the material located at the discharge port. This embodiment, through the above structure, can achieve real-time crushing of the material accumulated at the discharge port, reducing the probability of blockage and extending the service life of the equipment.
[0008] In some embodiments, the dynamic crushing blade includes a plurality of blades evenly distributed circumferentially along the thrust screw, the plurality of blades being arranged at a helical angle to guide the material to disperse and flow axially along the thrust screw. In this embodiment, the helical arrangement of the blades enhances the material dispersion effect, improving cutting efficiency and overall output uniformity.
[0009] In some embodiments, at least one bridging blade is provided in the middle of the thrust screw for further breaking up and bridging the material during the thrusting process. This structure enhances the disturbance and breaking up of the material during the thrusting process, effectively preventing the material from bridging and accumulating again.
[0010] In some embodiments, the dynamic crushing blade and the reverse-rotating anti-jamming feeding mechanism are coaxially mounted and rotate synchronously. This embodiment reduces structural complexity and improves the coordination efficiency and operational stability between components through the coaxial rotation design.
[0011] In some embodiments, the at least one discharge port may be multiple discharge ports with different diameters to accommodate the needs of large-volume conveying and precise discharge control. This structure allows for flexible switching between coarse and fine discharge, meeting material output requirements in various application scenarios.
[0012] In some embodiments, the at least one screw consists of two screws arranged parallel to each other, each screw corresponding to a different discharge port. A reverse thrust screw is arranged parallel above the two screws and positioned between them. This embodiment improves discharge efficiency and enhances the equipment's anti-clogging capability and fault tolerance through a multi-screw cooperative structure.
[0013] In some embodiments, the bridging assembly includes at least one set of bridging blades for periodically agitating the material to prevent bridging. This structure improves the bridging frequency and agitation uniformity, thus maintaining the flowability of the material within the silo.
[0014] In some embodiments, the system further includes: a weighing assembly disposed below the at least one discharge port, comprising: a weighing hopper for receiving the material pushed out by the at least one screw; a weighing sensor for real-time detection of the weight of the material in the weighing hopper; and a discharge gate disposed at the bottom of the weighing hopper for releasing the material into a container below after weighing is completed. This structure enables precise control of the discharge process, improving the system's automation level and metering accuracy.
[0015] The technical solution of this application solves the technical problem of easy material jamming in the discharge machine in the prior art. Attached Figure Description
[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0017] Figure 1 This is a structural diagram of the anti-jamming discharge machine disclosed in the embodiments of this application;
[0018] Figure 2 This is a structural diagram of the discharge reverse propulsion component disclosed in the embodiments of this application;
[0019] Figure 3 This is a structural diagram of the urban component disclosed in the embodiments of this application;
[0020] The above figures include the following reference numerals:
[0021] 1. Hopper; 2. Bridge breaking assembly; 3. Discharge reverse thrust assembly; 4. Screw discharge assembly; 5. Weighing assembly; 201. Power motor; 202. Reverse thrust screw; 203. Dynamic crushing blade; 204. Bridge breaking blade; 301. Weighing hopper; 302. Weighing sensor; 303. Discharge gate. Detailed Implementation
[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0025] This application provides a material discharge machine that prevents material jamming, such as... Figure 1As shown, the discharge machine includes a hopper 1, a bridging component 2, a discharge back-push component 3, a screw discharge component 4, and a weighing component 5. The hopper 1 is located above the discharge machine and is used to store materials to be processed. The bridging component 2 is located inside or above the hopper 1 and is used to periodically agitate the stored materials to prevent bridging and accumulation within the hopper 1, thereby achieving the effects of dispersing and breaking bridges. The discharge back-push component 3 is located at the discharge port and includes a reverse-rotating pusher anti-jamming mechanism and a dynamic crushing blade 203. These two components work together to push the material back into the hopper 1 when material accumulates at the discharge port, simultaneously cutting and dispersing it to achieve material diversion, smooth discharge, and precise control of the discharge volume. The screw discharge component 4 is located below the bridging component 2 and includes at least one screw and a corresponding discharge port, used to transport the material in the hopper 1 to the discharge port and push it out through the rotation of the screw. Multiple screws and discharge ports can be configured, employing a mix of large and small diameters to meet different needs for both large-volume and fine-control discharge. Discharge accuracy can be adjusted by regulating the screw speed. The weighing assembly 5, located below the discharge port, includes a weighing hopper 301, a weighing sensor 302, and a discharge gate 303. After being pushed out by the screw, the material falls into the weighing hopper 301. The weighing sensor 302 continuously monitors the weight of the material in the hopper. When the set value is reached, the discharge gate 303 is opened to release the material into the medicine box below.
[0026] The discharge back-pushing component 3 is a key structure of this application. It proposes an effective solution to the problems commonly found in existing discharge equipment when processing loose materials such as leaves, flowers, and grasses, including severe material jamming, poor discharge accuracy, and high manufacturing costs. For example... Figure 2 As shown, the component mainly includes a reverse rotating pusher anti-jamming mechanism and a dynamic crushing blade 203. The two work together to achieve material diversion and guidance, dynamic crushing and precise output, which is the core difference between this application and the prior art.
[0027] The reverse rotation pushing anti-jamming mechanism mainly includes a power motor 201 and a reverse thrust screw 202. The power motor 201 is fixedly installed outside the hopper 1, and its output shaft is rigidly connected to one end of the reverse thrust screw 202, driving the reverse thrust screw 202 to rotate in the opposite direction. The reverse thrust screw 202 passes between the two side walls of the hopper 1, runs horizontally through the entire hopper 1, and its free end extends to the other side of the hopper 1 and drives other structures in conjunction.
[0028] During normal discharge, while the material is conveyed to the discharge port through the screw discharge assembly 4, the power motor 201 drives the reverse screw 202 to rotate, using its spiral lead to push the accumulated material at the discharge port back into the hopper 1, preventing blockage in the outlet area and ensuring smooth overall discharge.
[0029] The reverse rotation pushing anti-jamming mechanism achieves reverse conveying function through the cooperation of the power motor 201 and the screw, which can effectively alleviate the "dead zone" blockage problem caused by the local aggregation of loose materials, and greatly improve the stability and controllability of the system.
[0030] To further improve the continuity and precision of the output, a dynamic crushing blade 203 is provided at the end of the reverse screw 202 away from the power motor 201. This blade structure is evenly distributed along the circumference of the reverse screw 202 and installed at a certain helical angle, so that it has the dual functions of guiding and cutting during the rotation of the screw.
[0031] The dynamic crushing blade 203 is coaxially and integrally installed with the reverse screw 202, rotating synchronously in the opposite direction with the reverse screw 202. While the material is being pushed in the reverse direction, it cuts and breaks up the agglomerated material at the discharge port. The helix angle design enhances the axial flow guidance capability, causing the material being cut to disperse and flow along the screw axis, thereby preventing material entanglement or blockage and ensuring a more stable and precise discharge process.
[0032] In some embodiments, to enhance the bridging and clump-breaking capabilities, at least one bridging blade 204 is provided in the middle of the reverse screw 202. This blade is fixedly installed in the middle of the screw and works together with the spiral blades to continuously disturb and break up the accumulated or adhered materials in the hopper 1 during the process of the material being pushed back to the hopper 1 in the reverse direction, thereby further preventing the material from bridging and forming blockages.
[0033] The bridge-breaking blade 204 utilizes the torque generated by the rotation of the screw to create lateral agitation of the material, effectively breaking up bridging phenomena between materials over a wide range and improving the flowability of materials in the hopper 1. It is a powerful supplement to the upper bridge-breaking component 2.
[0034] In summary, the power motor 201 drives the reverse screw 202 to rotate, which in turn drives the dynamic crushing blade 203 at one end to cut the accumulated material at the outlet. Simultaneously, it pushes the bridge-breaking blade in the middle to disperse the material in the hopper 1, forming a combined anti-jamming mechanism of "reverse guidance + dynamic crushing + bridge-breaking agitation." This structure not only effectively solves the problem of material accumulation at the outlet but also improves the discharge accuracy and cycle control capability. Furthermore, this discharge reverse thrust assembly 3, through its composite design of "mechanical reverse thrust + crushing and cutting + bridge-breaking agitation," solves the problems of material jamming and uneven discharge caused by the looseness and entanglement of materials in traditional equipment. Test data shows that this structure can reduce the jamming rate by more than 80%, control the discharge accuracy error within ±5%, and, due to its compact structure and high efficiency, effectively reduce the overall manufacturing cost.
[0035] The weighing component 5, as a functional module of the discharge system of this application, works in conjunction with the screw discharge component 4 to achieve quantitative output and automatic weighing of materials, significantly improving dispensing efficiency and discharge accuracy, and is suitable for application scenarios with strict requirements for material weighing. Figure 3 As shown, the weighing component 5 mainly includes: a weighing hopper 301, a weighing sensor 302, and a discharge gate 303. It has a compact structure and fast response, and can monitor the material quality in real time and accurately control the discharge amount during the discharge process.
[0036] Specifically, after the control system receives the discharge command, the screw discharge assembly 4 starts working, conveying the material from the hopper 1 to the weighing hopper 301. The weighing hopper 301 serves as a temporary storage container, allowing for independent weighing operations without interfering with the overall discharge process. The weighing sensor 302 is located at the bottom or in the support structure of the weighing hopper 301, enabling real-time monitoring and feedback of the material weight within the hopper. When the preset target value is reached, the system automatically controls the screw to stop discharging. Subsequently, the discharge gate 303 opens, releasing the weighed material into the receiving container below (e.g., a medicine box), achieving precise feeding. After the material is discharged, the discharge gate 303 closes again, preparing for the next round of weighing and feeding operations.
[0037] The weighing component 5 has the following advantages: 1) High adjustment efficiency: The weighing process and the material conveying process are parallel, avoiding sequential waiting and saving a lot of time; 2) High weighing accuracy: The sensor accuracy is adjustable to meet the quantitative control requirements of different specifications; 3) High degree of automation: It works with the automatic control system to achieve closed-loop control of the whole process, which is suitable for continuous production scenarios.
[0038] For the specific structure and working principle of the hopper 1 and the bridging component 2, please refer to the patent application filed by the same applicant, application number "2025102356837", entitled "Discharge Machine and Automatic Dispensing System for Medicinal Materials Including Therein". That application has provided a detailed description of the bridging component and the hopper, the entire contents of which are incorporated herein by reference and are considered an integral part of this specification. Further details will not be repeated here.
[0039] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0040] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.
[0041] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A non-jamming discharge machine characterized by, The utility model relates to a kind of material conveying device, including: Bin for storing material; Bridge breaking assembly is arranged in the bin or upper portion, for the material is scattered and bridge breaking processing is handled, to prevent the material is accumulated in the bin bridge; Screw discharging assembly is arranged in the bin and is located below the bridge breaking assembly, including at least one screw and at least one discharge port corresponding to the at least one screw, for the material is conveyed from the bin to corresponding discharge port and is pushed out by the rotation of the at least one screw; Discharge anti-push assembly, including: Reverse rotation push material anti-jamming mechanism, for when the material is accumulated in the at least one discharge port, the accumulated material is pushed back from the discharge port position to the bin interior; Dynamic crushing blade, rotate with the reverse rotation push material anti-jamming mechanism, for cutting and scattering the material accumulated in the at least one discharge port.
2. The outfeed machine of claim 1, wherein, The reverse rotation push material anti-jamming mechanism includes: Power motor, arranged outside the bin, for driving anti-push screw to rotate in the direction opposite to the rotation direction of the at least one screw; Anti-push screw, arranged in the same direction with the at least one screw, one end is fixedly connected with the output shaft of the power motor, passes through the side wall of the bin and extends to the bin interior, the other end penetrates the opposite side wall of the bin and extends outside the bin, wherein the helical blade of the anti-push screw is arranged in the section away from the power motor, for the accumulated material is pushed back from the discharge port position to the bin interior.
3. The outfeed machine of claim 2, wherein, The dynamic crushing blade is arranged at the end of the anti-push screw away from the power motor, located outside the bin, and can rotate reversely with the anti-push screw, for cutting and scattering the material located at the discharge port.
4. The outfeed machine of claim 3, wherein, The dynamic crushing blade includes a plurality of blades uniformly distributed along the circumference of the anti-push screw, and the plurality of blades are arranged along the helical angle to guide the material to flow in a dispersed manner along the axial direction of the anti-push screw.
5. The outfeed machine of claim 2, wherein, The middle part of the anti-push screw is provided with at least one bridge breaking blade for further scattering and bridge breaking operation on the material during the material pushing back process.
6. The outfeed machine of claim 2, wherein, The dynamic crushing blade is coaxially installed with the reverse rotation push material anti-jamming mechanism and rotates synchronously.
7. The outfeed machine of any one of claims 1 to 6, wherein, The at least one discharge port is a plurality of discharge ports, and the plurality of discharge ports have different diameters to adapt to the requirements of large discharge volume conveying and precise control of discharging respectively.
8. The outfeed machine of any one of claims 2 to 6, wherein, The at least one screw is two screws arranged in parallel with each other, the two screws correspond to two discharge ports respectively, the anti-push screw is arranged above the two screws in parallel, and the anti-push screw is located in the middle of the two screws.
9. The outfeed machine of any one of claims 1 to 6, wherein, The bridge breaking assembly includes at least one set of bridge breaking blades for periodically stirring the material to prevent the material from bridging.
10. The outfeed machine of any one of claims 1 to 4, wherein, Further including: Weighing assembly, arranged below the at least one discharge port, including: Weighing hopper for receiving the material pushed out by the at least one screw; Weighing sensor for detecting the weight of the material in the weighing hopper in real time; Discharge door, arranged at the bottom of the weighing hopper, for releasing the material to the container below after weighing is completed.