Screw adjusting device capable of preventing materials from being stuck

Abstract

The utility model discloses an anti-blocking screw adjusting device which comprises a hopper, an adjusting cylinder is formed at the bottom of the hopper, an adjusting screw is arranged in the adjusting cylinder, a discharge port is formed at one end of the adjusting cylinder, and the adjusting screw rotates to send out materials in the hopper from the discharge port. A notch is formed in the local position of a spiral blade of the adjusting screw, the notch is located at the position of the discharging port, and the notch is formed by shrinking inwards from the outer edge of the spiral blade so that the distance between the outer edge of the spiral blade and the side wall of the discharging port can be increased. According to the utility model, the outer edge of the spiral blade of the adjusting screw rod shrinks inwards to form the local notch, so that the distance between the outer edge of the spiral blade and the side wall of the discharge port is enlarged, materials at the discharge port can conveniently penetrate through the notch to enter the discharge port, and the possibility that the materials are stuck at the discharge port is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of traditional Chinese medicine production, in particular to a screw adjusting device for preventing material jamming. Background Art

[0002] Traditional Chinese medicine mainly includes herbal medicine, animal medicine and mineral medicine. It refers to natural medicines and their processed substitutes that are guided by the theory of traditional Chinese medicine, have a unique theoretical system and application form, and are used to prevent and treat diseases and have rehabilitation and health care effects. In traditional Chinese medicine pharmacies, the manual processing of Chinese medicine prescriptions is not only cumbersome, complicated and time-consuming, but also has disadvantages such as low precision in picking medicines and high labor intensity.

[0003] In order to improve the various problems existing in the process of preparing Chinese medicine prescriptions, the market mostly adopts the method of screw conveying and discharging to adjust Chinese medicine. However, when discharging and adjusting Chinese medicinal materials through screws, the following problems also exist:

[0004] The diameter of the discharge port is smaller than the diameter of the conveying channel at the bottom of the hopper. In the process of the adjusting screw conveying the material in the hopper to the discharge port, the material is easily stuck in the gap between the spiral blades of the adjusting screw and the inner wall of the discharge port, thereby hindering the subsequent material transportation and affecting the material discharge efficiency. In severe cases, the jam may even cause the adjusting screw to stop. Utility Model Content

[0005] The utility model aims to provide a screw adjusting device with anti-stuck material, so as to solve the technical problem that when discharging and adjusting Chinese medicinal materials by screw in the prior art, material jamming is easy to occur at the discharging channel.

[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] A screw adjusting device for preventing material from getting stuck comprises a hopper, an adjusting barrel is formed at the bottom of the hopper, an adjusting screw is arranged in the adjusting barrel, a discharge port is formed at one end of the adjusting barrel, and the adjusting screw rotates to send the material in the hopper out from the discharge port;

[0008] A notch is formed at a local position on the spiral blade of the adjusting screw, the notch is located at the position of the discharge port, and the notch is formed by shrinking inward from the outer edge of the spiral blade to expand the distance between the outer edge of the spiral blade and the side wall of the discharge port.

[0009] As a preferred solution of the utility model, an elastic blade is connected to the notch, and the elastic blade is used to fill the missing part of the spiral blade at the notch.

[0010] As a preferred solution of the utility model, a discharge barrel is connected at the discharge port, and the end of the adjusting screw extends to the discharge position of the discharge barrel;

[0011] A crushing piece is arranged on an opening of one end of the discharge barrel close to the discharge port, and the crushing piece faces the material on the discharge port side and can hinder the rotation of the material to achieve the purpose of crushing.

[0012] As a preferred solution of the present utility model, the crushing piece is a tooth-like structure at least partially formed at the opening of the discharge barrel.

[0013] As a preferred solution of the present invention, the toothed structure at least has a tip facing the discharge port, and / or the toothed structure at least has a tooth edge protruding toward the center of the discharge port.

[0014] As a preferred solution of the utility model, a limiting structure is provided on the inner wall of the discharge barrel, and the limiting structure has an obstructive effect at least on the circumferential rotation of the discharge barrel to limit the rotation of the material in the discharge barrel.

[0015] As a preferred solution of the present utility model, the limiting structure is at least one pattern formed on the inner wall of the discharge barrel;

[0016] Wherein, the texture is any one of a concave structure or a convex structure or a combination of the two;

[0017] Wherein, the texture has an inclination along the discharge direction.

[0018] As a preferred solution of the utility model, a switch door structure is also provided at the discharge end of the discharge barrel;

[0019] The switch door structure includes a movable door arranged outside the discharging end of the discharging cylinder, and the movable door can move linearly relative to the discharging cylinder to close or open the discharging cylinder.

[0020] As a preferred solution of the utility model, a chamfered structure is designed on the head edge of the movable door to tilt the material in the discharge barrel;

[0021] Wherein, the chamfer dimension of the movable door is times the thickness dimension of the movable door.

[0022] As a preferred solution of the utility model, the front part of the movable door is designed as a semicircular structure, and the semicircular radius of the semicircular structure is times the radius of the discharge barrel.

[0023] As a preferred solution of the utility model, the front part of the movable door is designed as an oblique angle structure, and the inclined surface of the oblique angle structure is arranged to be inclined downward.

[0024] As a preferred solution of the utility model, a driving mechanism is installed on the hopper, and the telescopic end of the driving mechanism is fixedly connected to the movable door.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] In the utility model, the outer edge of the spiral blade of the adjusting screw is retracted inward to form a local notch to expand the distance between the outer edge of the spiral blade and the side wall of the discharge port, so that the material at the discharge port can pass through the notch into the discharge port, thereby reducing the possibility of material jamming at the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0028] Figure 1 A schematic diagram of the structure of a screw adjusting device for preventing material jamming is provided for an embodiment of the utility model;

[0029] Figure 2 A schematic diagram of the structure of an adjusting screw in a screw adjusting device for preventing material jamming is provided for an embodiment of the utility model;

[0030] Figure 3 A schematic structural diagram of a toothed mechanism and a friction structure in a screw adjusting device for preventing material jamming is provided for an embodiment of the utility model;

[0031] Figure 4 A schematic cross-sectional structure diagram of a screw adjusting device for preventing material jamming is provided for an embodiment of the utility model;

[0032] Figure 5 A schematic diagram of the structure of elastic blades in a screw adjusting device for preventing material jamming is provided for an embodiment of the utility model;

[0033] Figure 6 A schematic diagram of the appearance structure of a crushing member in a screw adjusting device for preventing material jamming is provided for an embodiment of the utility model;

[0034] Figure 7 A structural schematic diagram of a restricting structure in a screw adjusting device for preventing material jamming is provided for an embodiment of the utility model;

[0035] Figure 8 A schematic diagram of the structure of the switch door structure in the screw adjusting device for preventing material jamming is provided for the embodiment of the utility model;

[0036] Fig. 9 A schematic diagram of the structure of the door opening in the screw adjusting device for preventing material jamming is provided in the embodiment of the utility model;

[0037] Fig.10 A schematic diagram of the structure of the door closing of the opening and closing door structure in the screw adjusting device for preventing material jamming is provided for the embodiment of the utility model;

[0038] Fig.11 A schematic structural diagram of a first embodiment of a movable door of a switch door structure in a screw adjusting device for preventing material jamming is provided in the embodiment of the utility model;

[0039] Fig.12 A schematic structural diagram of a second embodiment of a movable door of a switch door structure in a screw rod adjusting device for preventing material jamming is provided in the embodiment of the utility model;

[0040] Fig.13 A schematic diagram of the appearance structure of a screw adjusting device for preventing material jamming is provided for an embodiment of the utility model;

[0041] The numbers in the figure represent the following:

[0042] 1 hopper, 1-1 adjusting cylinder, 1-2 discharge port;

[0043] 2 adjusting screws, 2-1 spiral blades, 2-2 notches;

[0044] 3 discharge barrel, 3-1 crushed material, 3-2 limiting structure;

[0045] 4 movable doors, 4-1 chamfered structure, 4-2 semicircular structure, 4-3 bevel structure;

[0046] 5. Driving mechanism. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] like Figure 1 and Figure 4 As shown, the utility model provides a screw adjusting device for preventing material jamming, which has:

[0049] It includes a hopper 1, a regulating barrel 1-1 is formed at the bottom of the hopper 1, a regulating screw 2 is arranged in the regulating barrel 1-1, a discharge port 1-2 is formed at one end of the regulating barrel 1-1, and the regulating screw 2 rotates to send the material in the hopper 1 out from the discharge port 1-2.

[0050] Reference Figure 2 As shown, a notch 2-2 is formed at a local position on the spiral blade 2-1 of the adjusting screw 2. The notch 2-2 is located at the position of the discharge port 1-2. The notch 2-2 is formed by shrinking inward from the outer edge of the spiral blade 2-1 to expand the distance between the outer edge of the spiral blade 2-1 and the side wall of the discharge port 1-2.

[0051] During operation, the material is poured into the hopper 1, and the material pouring position is located away from the discharge port 1-2, so that the material enters the discharge port 1-2 after being fully adjusted and transported by the adjusting screw 2, so as to complete the adjustment and mixing of the material.

[0052] When the material is driven by the adjusting screw 2 to enter the discharge port 1-2, since a notch 2-2 is formed on the outer edge of the spiral blade 2-1 of the adjusting screw 2 at the discharge port 1-2, the distance between the outer edge of the spiral blade 2-1 and the side wall of the discharge port 1-2 is large, and the material can easily pass through the notch 2-2 and be discharged through the discharge port 1-2, thereby improving the discharge efficiency of the material and preventing the material from accumulating at the discharge port 1-2 to form a jam.

[0053] Especially for some slightly larger materials put into the hopper 1, these materials can also pass through the gap 2-2 and be discharged through the discharge port 1-2, thereby reducing the risk of material jamming at the discharge port 1-2.

[0054] The existence of the notch 2-2 on the spiral blade 2-1 increases the distance between the outer edge of the spiral blade 2-1 and the side wall of the discharge port 1-2. The spiral blade 2-1 has insufficient driving force for the small material at the bottom of the adjustment tube 1-1. In order to be able to clear all the materials in the hopper 1, refer to Figure 5 As shown, in this embodiment, an elastic blade 2-3 is connected to the notch 2-1, and the elastic blade 2-3 is used to make up for the missing part of the spiral blade 2-1 at the notch 2-1.

[0055] The distance between the outer edge of the spiral blade 2-1 and the side wall of the discharge port 1-2 is restored by the elastic blade 2-3, thereby increasing the conveying capacity of the adjusting screw 2 for materials, so that small materials and powders inside the hopper 1 can also be conveyed out by the adjusting screw 2.

[0056] In addition, the elastic blade 2-3 is made of elastic material and has a certain elastic deformation ability. When material jams at the discharge port 1-2, the material is stuck between the elastic blade 2-3 and the side wall of the discharge port 1-2. As the adjusting screw 2 rotates, the elastic blade 2-3 is forced to deform and resist the stuck material. As the elastic blade 2-3 is driven, the stuck material is pushed into the discharge port 1-2, thereby reducing the possibility of the material being sheared and stuck by the spiral blade 2-1. When the stuck material disappears, the elastic blade 2-3 automatically recovers under the action of its own elastic force.

[0057] In this embodiment, the spiral blade 2 - 1 at the notch 2 - 2 is made of soft material.

[0058] In order to be able to transport the adjusted material over a short distance so as to facilitate the collection and storage of the material, in the present embodiment, the discharge barrel 3 is connected at the discharge port 1-2, and the end of the adjusting screw 2 extends to the discharge position of the discharge barrel 3. The material in the hopper 1 can be adjusted and transported to the outlet of the discharge barrel 3 by driving the adjusting screw 2, and a material storage mechanism is provided at the outlet of the discharge barrel 3.

[0059] For Chinese medicine materials, their volume is irregular, and special-shaped Chinese medicine materials often enter the hopper 1. Due to structural reasons, these Chinese medicine materials cannot pass through the gap 2-2, so that the material is stuck at the discharge port 1-2. Therefore, we propose the following solution to solve the above problem:

[0060] In this embodiment, refer to Figure 3 As shown, a crushing piece 3-1 is arranged on an opening of one end of the discharge barrel 3 close to the discharge port 1-2, and the crushing piece 3-1 faces the material on the side of the discharge port 1-2.

[0061] When the material cannot pass through the gap 2-2 and is stuck at the discharge port 1-2, as the adjusting screw 2 drives the material, the material rotates relative to the crushing member 3-1, and the crushing member 3-1 hinders the rotation of the material and rubs and collides with the material, thereby causing the material to be crushed into smaller materials until the material can pass through the gap 2-2 and through the discharge port 1-2, thereby reducing the risk of the material being stuck at the discharge port 1-2.

[0062] In order to enable the crushing element 3-1 to achieve the above-mentioned crushing effect on the material, in this embodiment, refer to Figure 6 As shown, the specific implementation of the crushing member 3-1 is:

[0063] The crushing piece 3-1 is a tooth-like structure at least partially formed at the opening of the discharge barrel 3, and the tooth tip of the tooth-like structure is facing the material on the side of the discharge port 1-2. When the material is stuck at the discharge port 1-2, when the material rotates, the material and the tooth tip of the tooth-like structure rub and collide with each other, and the tooth tip of the tooth structure continuously scrapes the surface of the material, thereby breaking the material into smaller materials, so that the material can pass through the discharge port 1-2 through the gap 2-2 and enter the discharge barrel 3.

[0064] In this embodiment, the tooth-like structure at least has a tip pointing toward the discharge port 1 - 2 , and / or the tooth-like structure at least has a tooth edge protruding toward the center of the discharge port 1 - 2 .

[0065] Among them, the tooth edge of the toothed structure toward the center of the discharge port 1-2 can crush the material stuck between the spiral blade 2-1 and the inner wall of the discharge port 1-2, so that the stuck material can be crushed at multiple angles, further reducing the risk of material getting stuck at the discharge port 1-2.

[0066] When the material is transported in the discharge barrel 3 over a short distance, if the friction between the material and the inner wall of the discharge barrel 3 is insufficient, the material will spin in the discharge barrel 3. In order to solve the above problem, in this embodiment:

[0067] A limiting structure 3 - 2 is provided on the inner wall of the discharge barrel 3 , and the limiting structure 3 - 2 has an obstructive effect at least on the circumferential rotation of the discharge barrel 3 to limit the rotation of the material in the discharge barrel 3 , so that the material moves along the length direction of the discharge barrel 3 under the drive of the adjusting screw 2 .

[0068] In this embodiment, the limiting structure 3-2 is at least one groove formed on the inner wall of the discharge barrel 3, and the groove is arranged circumferentially along the inner wall of the discharge barrel 3. Under the drive of the adjusting screw 2, when the material moves along the length direction of the discharge barrel 3, the material continuously crosses the groove, thereby increasing the friction between the material and the inner wall of the discharge barrel 3, preventing the material from spinning in the discharge barrel 3.

[0069] In this embodiment, the texture is any one of a concave structure or a convex structure or a combination of both. When the material passes through the texture of the concave structure or the convex structure, the contact area between the inner wall of the discharge barrel 3 and the material is increased by the concave structure or the convex structure, and there is a pause when the material passes through the concave structure or the convex structure to avoid the material from spinning and flowing back.

[0070] In this embodiment, the texture has an inclination along the discharging direction. When the adjusting screw 2 drives the material to move in the discharging barrel 3, the friction between the material and the inner wall of the discharging barrel 3 is increased by the texture, thereby preventing the material and the adjusting screw 2 from rotating synchronously, so that the material is driven by the adjusting screw 2 to continuously move in a straight line and be transported to the outside of the discharging barrel 3.

[0071] In this embodiment, refer to Figure 6 and Figure 7 As shown, the texture layout can be straight texture in the opposite direction of the length of the discharge barrel 3, or it can be arc-shaped texture along the length of the discharge barrel 3. In actual use, the texture is not limited to the above two types. In summary, based on the shape of the material in the hopper 1, the texture can increase the friction between the material and the inner wall of the discharge barrel 3.

[0072] In order to solve the technical problem that materials are prone to falling at the discharge port of the discharge machine in the traditional screw discharge method in the prior art.

[0073] In this embodiment, refer to Figure 8 and Fig.13 As shown, a switch door structure is also provided at the discharge end of the discharge cylinder 3;

[0074] The switch door structure includes a movable door 4 arranged outside the discharging end of the discharging cylinder 3, and the movable door 4 can realize linear movement relative to the discharging cylinder 3 to close or open the discharging cylinder 3.

[0075] When using, refer to Fig. 9 and Fig.10 As shown, the material in the hopper is driven by the adjusting screw 2 and continuously transported to the discharge barrel 3. When the discharge barrel 3 stops discharging a certain amount of material, the movable door 4 is started, and the movable door 4 moves until it is opposite to the discharge barrel 3, thereby completely blocking and closing the discharge barrel 3, thereby preventing the material from falling from the discharge barrel 3.

[0076] In this embodiment, refer to Fig.11 As shown, a chamfer structure 4 - 1 is designed at the head edge of the movable door 4 to tilt the material in the discharge barrel 3 .

[0077] The chamfer size of the movable door 4 is 0.5-1 times of the thickness of the movable door, so that the material in the discharge barrel 3 slides to both sides of the movable door 4 to avoid the material in the discharge barrel 3 from getting stuck and hindering the movement of the movable door 4.

[0078] Furthermore, a chamfer is formed at the front of the movable door 4 to form an inclined blade. When the material is stuck between the movable door 4 and the discharge barrel 3, the chamfer is used to cut the material off, thereby further avoiding the material being stuck in the discharge barrel 3.

[0079] In this embodiment, the inclined surface formed by the chamfer is located on the side of the movable door 4 away from the discharge barrel 3, so that the front edge of the movable door chamfer can fit with the opening of the discharge barrel 3. During the movement of the movable door 4, the movable door 4 can more thoroughly squeeze the material at the discharge barrel 3.

[0080] The chamfer dimension is 0.5-1 times of the thickness dimension of the movable door 4, so that the chamfered slope is wider.

[0081] In this embodiment, the front part of the movable door 4 is designed as a semicircular structure 4-2. Compared with the rectangular movable door 4, the movable door 4 with a semicircular structure 4-2 extends from the middle of the discharge barrel 3 to the upper and lower sides of the discharge barrel 3 through the curved surface at its front end to close the discharge barrel 3, thereby reducing the resistance of the material in the discharge barrel 3 to the movable door 4 and the risk of material jamming.

[0082] In this embodiment, the semicircular radius of the semicircular structure 4-2 is 1-2 times the radius of the discharge barrel 3, so that when the semicircular structure 4-2 is facing the discharge barrel 3, the discharge barrel 3 can be completely blocked and closed by the movable door 4.

[0083] In this implementation, refer to Fig.12 As shown, the front part of the movable door 4 is designed as an angled structure 4-3, and the inclined surface of the angled structure 4-3 is tilted downward. In the process of the movable door 4 moving to block the discharge barrel 3, the movable door 4 with the angled structure 4-3 moves from the upper right side of the discharge barrel 3 to the lower left side of the discharge barrel 3 to gradually block the discharge barrel 3, so as to reduce the resistance of the material in the discharge barrel 3 to the movable door 4 and the risk of material jamming.

[0084] In actual use, the front portion of the movable door 4 can also be designed to be a cone or other shape, which also serves the purpose of reducing the resistance of the material to the movable door 4 and the risk of material jamming when the movable door 4 closes the discharge barrel 3.

[0085] In this embodiment, refer to Figure 8 As shown, a driving mechanism 5 is installed on the hopper, and the telescopic end of the driving mechanism 5 is fixedly connected to the movable door 4. The driving mechanism 5 is a telescopic component driven by a hydraulic telescopic cylinder or a motor or compressed air, so that it can quickly respond and accurately drive the movement of the movable door 4.

[0086] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A screw adjusting device for preventing material jamming, characterized in that: It comprises a hopper (1), a regulating barrel (1-1) is formed at the bottom of the hopper (1), a regulating screw (2) is arranged in the regulating barrel (1-1), a discharge port (1-2) is formed at one end of the regulating barrel (1-1), and the regulating screw (2) rotates to deliver the material in the hopper (1) from the discharge port (1-2); A notch (2-2) is formed at a local position on the spiral blade (2-1) of the adjusting screw (2), the notch (2-2) being located at the position of the discharge port (1-2), and the notch (2-2) is formed by shrinking inward from the outer edge of the spiral blade (2-1) to increase the distance between the outer edge of the spiral blade (2-1) and the side wall of the discharge port (1-2).

2. The anti-stuck material screw adjusting device according to claim 1, characterized in that: An elastic blade (2-3) is connected to the notch (2-2), and the elastic blade (2-3) is used to complete the missing part of the spiral blade (2-1) at the notch (2-2).

3. The anti-stuck material screw adjusting device according to claim 1, characterized in that: A discharge barrel (3) is connected to the discharge port (1-2), and the end of the adjusting screw (2) extends to the discharge position of the discharge barrel (3); A material crushing piece (3-1) is provided on an opening at one end of the material discharge barrel (3) close to the material discharge port (1-2), the material crushing piece (3-1) faces the material on the side of the material discharge port (1-2) and can hinder the rotation of the material to achieve the purpose of crushing.

4. The anti-stuck material screw adjusting device according to claim 3, characterized in that: The crushing piece (3-1) is a tooth-shaped structure at least partially formed at the opening of the discharge barrel (3).

5. The anti-stuck material screw adjusting device according to claim 4, characterized in that: The toothed structure at least has a tip pointing toward the discharge port (1-2), and / or the toothed structure at least has a toothed edge protruding toward the center of the discharge port (1-2).

6. The anti-stuck material screw adjusting device according to claim 3, characterized in that: A limiting structure (3-2) is provided on the inner wall of the discharge barrel (3), and the limiting structure (3-2) has an obstructive effect at least on the circumferential rotation of the discharge barrel (3), so as to limit the rotation of the material in the discharge barrel (3).

7. The anti-stuck material screw adjusting device according to claim 6, characterized in that: The limiting structure (3-2) is at least one pattern formed on the inner wall of the discharge barrel (3); Wherein, the texture is any one of a concave structure or a convex structure or a combination of the two; Wherein, the texture has an inclination along the discharge direction.

8. The anti-jamming screw adjusting device according to claim 3, characterized in that: A switch door structure is also provided at the discharge end of the discharge cylinder (3); The opening and closing door structure comprises a movable door (4) arranged outside the discharge end of the discharge cylinder (3), and the movable door (4) can move linearly relative to the discharge cylinder (3) to close or open the discharge cylinder (3).

9. The anti-jamming screw adjusting device according to claim 8, characterized in that: A chamfered structure (4-1) is designed on the head edge of the movable door (4) to push out the material in the discharge barrel (3); Wherein, the chamfer dimension of the movable door (4) is 0.5-1 times the thickness dimension of the movable door.

10. The anti-jamming screw adjusting device according to claim 9, characterized in that: The front part of the movable door (4) is designed as a semicircular structure (4-2), and the semicircular radius of the semicircular structure (4-2) is 1 to 2 times the radius of the discharge barrel (3).

11. The anti-jamming screw adjusting device according to claim 9, characterized in that: The front part of the movable door (4) is designed as an oblique angle structure (4-3), and the inclined surface of the oblique angle structure (4-3) is arranged to be inclined downward.

12. The anti-jamming screw adjusting device according to claim 9, characterized in that: A driving mechanism (5) is installed on the hopper (1), and the telescopic end of the driving mechanism (5) is fixedly connected to the movable door (4).

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