Bandsaw blade screw

Abstract

The utility model discloses a take sawtooth screw rod, aims at providing a take sawtooth screw rod of improving the effect of food processing, preventing the machine idling and improving the juicing efficiency. It includes horizontal machine body, screw rod axle is connected with horizontal machine body, screw rod axle, screw rod axle is connected with screw rod body, push material surface, push material surface is screw rod body surface, and push material surface comprises pre -cut section and feed extrusion section from front to back, sawtooth spiral, sawtooth spiral is connected with push material surface, and sawtooth spiral is arranged in pre -cut section, a plurality of sawtooth body, sawtooth body is connected with sawtooth spiral and is integral type structure, and the structural shape of sawtooth body is asymmetric sawtooth, extrusion spiral, extrusion spiral is connected with push material surface, and extrusion spiral is arranged in feed extrusion section, and extrusion spiral is connected with sawtooth spiral in pre -cut section. The utility model has the beneficial effects that: through take sawtooth, make screw rod effective catch and advance food material, prevent idling and improve the juicing efficiency, the residue that extrudes is also more dry quality and more uniform, reduce the stratification phenomenon.

Description

Technical Field

[0001] This utility model relates to the field of juicer technology, and in particular to a serrated screw. Background Technology

[0002] The juicing assembly of a horizontal screw juicer generally consists of a feed cylinder, a juicing screen, a screw, and a feed cylinder cover. The screw is installed inside the feed cylinder, the juicing screen is installed inside the feed cylinder and fitted over the screw, and the feed cylinder cover is installed at the end of the feed cylinder. After the fruit is squeezed by the screw and the juicing screen, the juice flows out from the outlet of the juicing screen, while the pulp is squeezed out through the gap between the screw and the juicing screen via the annular soft rubber outlet of the feed cylinder cover, thus achieving pulp and juice separation.

[0003] Chinese Patent Grant Announcement No.: CN 207202681 U, Grant Announcement Date: April 10, 2018. This utility model relates to a screw for a horizontal screw juicer and a horizontal screw juicer, including a housing, a screw shaft, and a screw core located between the housing and the screw shaft. A propulsion spiral is provided on the surface of the housing. The screw core is injection molded onto the periphery of the screw shaft and integrated with it. The screw also includes a wear-resistant washer and a wear-resistant head. The wear-resistant washer is installed at the rear end of the screw core, and the wear-resistant head is sleeved on the front end of the screw core. The housing is injection molded onto the periphery of the screw core, connecting the wear-resistant washer and the wear-resistant head into one unit. The drawback of this technical solution is that the smooth propulsion spiral structure is prone to slippage, making it difficult to effectively grip and propel food, resulting in the machine running idle or being inefficient.

[0004] In summary, existing juicer screws have shortcomings such as poor food processing effect, easy machine idling, or low efficiency. Utility Model Content

[0005] This invention aims to overcome the shortcomings of existing screws, such as poor food processing effect, easy machine idling, or low efficiency, and provides a toothed screw that improves food processing effect, prevents machine idling, and thus improves juicing efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A serrated screw, comprising Horizontal body; Screw shaft, with screw body connected to the screw shaft; The feeding surface is the surface of the screw body, and the feeding surface includes a pre-cutting section and a feeding extrusion section from front to back; The serrated spiral is connected to the pusher surface and is arranged in the pre-cut section. Several sawtooth bodies are connected to the sawtooth spiral to form an integral structure, and the structural shape of the sawtooth body is asymmetrical sawtooth. The extrusion screw is connected to the feeding surface and is arranged in the feeding extrusion section. The extrusion screw is connected to the toothed screw in the pre-cutting section.

[0007] A serrated screw is used in horizontal machines (such as juicers or ice cream machines) to process fruits and vegetables into juice or ice cream. The screw shaft is mounted on the drive source of the horizontal machine for rotation. The shaft body is connected to the screw shaft, and the surface of the screw body is designed as a pushing surface. The pushing surface is divided into a pre-cutting section and a feeding and extrusion section. The pre-cutting section is connected to a serrated spiral, along which several integrated serrated bodies are connected. The serrated structure of these serrated bodies pre-cuts and feeds the food. Compared to a completely smooth screw surface, the serrations increase the surface roughness, providing stronger friction. When processing smooth or hard foods (such as apples, carrots, and ginger), a smooth screw may slip, failing to effectively grip and push the food. This can lead to machine idling or low efficiency. The saw teeth firmly "bite" the ingredients (the pressure angle of the screw rotation and the notch shape of the saw teeth "grinds" the ingredients in, causing the screw to rotate, chop, and push forward), ensuring they are stably and continuously pushed towards the juicing screen and discharge port, thus improving juice yield and juicing efficiency. Simultaneously, as the ingredients enter the pre-cutting section, the saw teeth perform initial tearing, compression, and crushing. For leafy vegetables with high fiber content (such as spinach and wheatgrass) or fruits and vegetables with peels, the saw teeth can more effectively break down their cell structure, releasing more juice and nutrients. After preliminary processing and propulsion by the saw teeth, the ingredients enter the extrusion section. The pre-crushed ingredients become finer particles, allowing for more thorough juice separation during subsequent extrusion, significantly increasing juice yield. The agitation of the saw teeth continuously tumbles and rearranges the ingredients during extrusion, preventing uneven extrusion caused by clumps. Uniform extrusion means maximizing juice extraction from all ingredients, resulting in drier, more uniform residue. The asymmetrical serrated structure of the serrated body provides space for a small amount of air to be incorporated (excessive air accelerates oxidation and occupies space), helping to separate oxygen from the juice, thus slowing down the oxidation rate and resulting in brighter juice color, longer freshness, and reduced stratification. The extrusion screw of the feeding section and the serrated screw of the pre-cutting section connect at the transition point, forming a high-intensity extrusion push. This achieves the effects of the serrated screw effectively gripping and propelling the ingredients, preventing idling and increasing juice yield and juicing efficiency, producing drier and more uniform residue, slowing down oxidation, prolonging freshness, and reducing stratification.

[0008] Preferably, a screw core is provided between the screw shaft and the screw body. The screw body and the screw core are sleeved together, and the screw core is snapped into the screw shaft. The screw body is fixedly sleeved on the outside of the screw core, and the screw shaft is connected to the screw core through snapping, forming an integral screw base. This achieves the effect of improving the quick connection method and structural stability of screw accessories.

[0009] Preferably, the serrated body has a streamlined shape from its leading edge to its trailing edge. The cross-section of the serrations is not a simple rectangle or triangle, but rather designed to be streamlined. This shape results in low resistance on the front and a low-pressure zone on the back, drawing in a small amount of surrounding air into the food and carrying it along the direction of the serrations. This achieves the effect of slowing down oxidation through the serrated shape design.

[0010] Preferably, the leading edge surface of the most advanced serrated tooth of the serrated spiral is rounded. This rounded leading edge further reduces frontal resistance, thus further ensuring the oxidation-retarding effect.

[0011] Preferably, the leading edge angle of the serrated body is steeper on the pushing surface than the trailing edge angle. The leading edge angle (facing the direction of rotation) and the trailing edge angle (facing away from the direction of rotation) of the serrated body are different. The steeper (nearly vertical) leading edge angle effectively grips the food, while the trailing edge is designed as a gentler slope or concave surface. During rotation, this allows for more effective "throwing" of space behind, creating a stronger vacuum suction and entraining a small amount of air. This serrated angle design improves the juicing process and delays oxidation.

[0012] Preferably, the surface structure of the pusher surface is parallel to the screw axis at the pre-cut section. Since the food first contacts the main part of the saw teeth during feeding, when this part of the pusher surface is parallel to the screw axis, a relatively stable "channel" or "platform" is formed. The core task of the saw teeth is to effectively tear, cut, and grind the cell walls of the food. A flat base provides stable support for the saw teeth, ensuring they can penetrate deep into the food and apply uniform pressure for efficient crushing. The relatively gentle surface allows the food to have sufficient residence time in this area, allowing the saw teeth to work fully without being pushed away too quickly. This achieves the effect of improving the crushing and grinding efficiency of the saw teeth on the food and controlling the pushing speed.

[0013] Preferably, the surface structure of the feeding surface forms an acute angle with the screw axis at the front end of the feeding extrusion section. This acute angle causes the feeding section to be an outwardly inclined section (with a gradually increasing diameter), thereby generating extrusion and compression. This applies enormous radial and axial pressure to the food scraps entering from the pre-cut section, forcefully squeezing out the juice. The high pressure forces the juice to flow out through the tiny pores of the juicing screen. This achieves the effect of ensuring efficient extrusion of food and separating juice from residue.

[0014] Preferably, the surface structure of the pusher surface forms an obtuse angle with the screw axis at the rear end of the feeding extrusion section. This obtuse angle makes the extrusion section inwardly inclined (with a gradually decreasing diameter). While continuously extruding and separating the juice and residue, it also gradually reduces the pressure on the residue towards the center, making the relaxed residue easier to push forward in the next cycle. This effectively prevents residue clogging.

[0015] Preferably, the number of saw teeth is ≥2. The tooth depth of each saw tooth is defined as H, the tooth width as W, and the tooth angle as α. H is 3-8 mm, W is 3-6 mm, and α is 60° to 90°. Two or more saw teeth are arranged in a continuous configuration. The depth of each saw tooth is the distance from the tooth surface to the tooth bottom, defined as H. The tooth width is the thickness from one tooth side to the other, defined as W. The tooth angle is the span of the notch between adjacent saw teeth, defined as α. Here, H is 3-8 mm, W is 3-6 mm, and α is 60° to 90°. This ensures the saw teeth maintain high performance in biting and propelling food, adapting to functional operations. This improves the structural layout rationality and operational quality of the serrated screw.

[0016] Preferably, the saw teeth are made of food-grade plastic or stainless steel. The material of the saw teeth can be chosen from either food-grade plastic or stainless steel to ensure structural strength and safety during use.

[0017] The beneficial effects of this utility model are: the serrated screw effectively grips and propels food; it prevents idling, increases juice yield and juicing efficiency; the extracted residue is drier and more uniform in texture; it slows down oxidation, prolongs freshness, and reduces layering; it improves the connection method of screw accessories, enhances structural stability; it improves the crushing and grinding efficiency of the serrated body on food and controls the propulsion speed; it effectively prevents residue blockage; it improves the rationality of the serrated screw's structural layout and operational quality; and it ensures structural strength and safety in use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional representation of the present invention. Figure 1 ; Figure 2 yes Figure 1 A sectional view; Figure 3 yes Figure 1 Front view; Figure 4 yes Figure 1 Rear view; Figure 5 This is a three-dimensional representation of the present invention. Figure 2 ; Figure 6This is a three-dimensional representation of the present invention. Figure 3 ; Figure 7 This is a schematic diagram of the tooth width of the sawtooth body; Figure 8 This is a schematic diagram of the tooth depth and tooth angle of the sawtooth body; Figure 9 This is a schematic diagram of a horizontal machine body.

[0019] In the diagram: 1. Screw shaft, 2. Screw body, 3. Pushing surface, 4. Pre-cutting section, 5. Feeding and extrusion section, 6. Serrated auger, 7. Serrated body, 8. Extrusion auger, 9. Screw core, 10. Horizontal machine body. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0021] 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.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of components illustrated in these embodiments do not limit the scope of this application. For ease of illustration, spatial relative terms such as “up,” “down,” “left,” and “right” are used in the embodiments to describe the relationship of one element or feature shown in the figures relative to another element or feature. It should be understood that, in addition to the orientations shown in the figures, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, an element described as being “below” other elements or features would be positioned “up” other elements or features. Thus, the exemplary term “down” can include both up and down orientations. The device may be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein can be interpreted accordingly. It should also be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale. Techniques, processes, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, processes, and equipment 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 figures denote similar items; therefore, once an item is defined in one figure, it need not be discussed further in subsequent figures.

[0023] 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.

[0024] Example 1: like Figure 1 , 2 As shown in Figure 4, a serrated screw includes a horizontal body 10; a screw shaft 1 connected to a screw body 2; a pusher surface 3, which is the surface of the screw body 2, and includes a pre-cutting section 4 and a feeding extrusion section 5 from front to back; a serrated spiral 6 connected to the pusher surface 3, and arranged in the pre-cutting section 4; several serrated bodies 7, which are connected to the serrated spiral 6 in an integral structure, and the serrated bodies 7 have an asymmetrical serrated shape; and an extrusion spiral 8 connected to the pusher surface 3, arranged in the feeding extrusion section 5, and connected to the serrated spiral 6 in the pre-cutting section 4.

[0025] like Figure 2 As shown, a screw core 9 is provided between the screw shaft 1 and the screw body 2. The screw body 2 and the screw core 9 are sleeved together, and the screw core 9 is snapped into the screw shaft 1.

[0026] like Figure 5 , 6 As shown, the serrated body 7 has a streamlined shape from its leading edge to its trailing edge. The leading edge surface of the serrated helix 6 is rounded. The leading edge angle of the serrated body 7 is steeper on the pusher surface 3 than the trailing edge angle.

[0027] like Figure 5 , 6 As shown, the surface structure direction of the pusher surface 3 is parallel to the screw axis 1 at the pre-cutting section 4. The angle between the surface structure direction of the pusher surface 3 and the screw axis 1 is acute at the front end of the feeding extrusion section 5. The angle between the surface structure direction of the pusher surface 3 and the screw axis 1 is obtuse at the rear end of the feeding extrusion section 5.

[0028] like Figure 7 As shown, the tooth width of the sawtooth body 7 is set to W, and the size of W is 5mm.

[0029] like Figure 8 As shown, the tooth depth of the sawtooth body 7 is set to H, and the tooth angle is set to α. The size of H is 4mm, and the size of α is 80°. There are 4 sawtooth bodies 7.

[0030] The serrated body 7 is made of food-grade plastic.

[0031] Connect the screw to the juicer ( Figure 9 After the internal drive source (as shown) is assembled, the power source in the juicer provides rotational power to the screw shaft, causing the screw to rotate as a whole.

[0032] Example 2: The serrated body 7 is made of stainless steel.

[0033] When in use: When the ingredients are put into the horizontal machine body 10, the ingredients will fall on the pre-cut section 4 at the pushing surface 3. By starting the power, the serrated spiral 6 and serrated body 7 will pre-cut and push the ingredients while rotating, so that the pre-cut ingredients enter the feeding and extrusion section and are subjected to strong extrusion to further separate the juice and residue and complete the extraction.

[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A serrated screw, characterized in that, include Horizontal body (10); Screw shaft (1), the screw shaft (1) is connected to the horizontal machine body (10), and the screw shaft (1) is connected to the screw body (2). The pushing surface (3) is the surface of the screw body (2). The pushing surface (3) includes a pre-cutting section (4) and a feeding extrusion section (5) from front to back. A serrated spiral (6) is connected to a pusher surface (3) and the serrated spiral (6) is arranged in a pre-cut section (4). A plurality of sawtooth bodies (7), wherein the sawtooth bodies (7) are connected to the sawtooth spiral (6) in an integral structure, and the structural shape of the sawtooth bodies (7) is asymmetrical sawtooth; The extrusion screw (8) is connected to the push surface (3), the extrusion screw (8) is arranged in the feeding extrusion section (5), and the extrusion screw (8) is connected to the sawtooth screw (6) in the pre-cutting section (4).

2. The serrated screw according to claim 1, characterized in that, A screw core (9) is provided between the screw shaft (1) and the screw body (2). The screw body (2) and the screw core (9) are sleeved together, and the screw core (9) is snapped into the screw shaft (1).

3. A serrated screw according to claim 1, characterized in that, The front and rear edges of the sawtooth body (7) have a streamlined shape.

4. A serrated screw according to claim 1 or 3, characterized in that, The leading edge surface of the foremost sawtooth body (7) of the sawtooth spiral (6) is rounded.

5. A serrated screw according to claim 4, characterized in that, The leading edge angle of the sawtooth body (7) is steeper on the pushing surface (3) than the trailing edge angle of the sawtooth body (7).

6. A serrated screw according to claim 1, characterized in that, The surface structure direction of the pusher surface (3) is parallel to the screw axis (1) at the pre-cut section (4).

7. A serrated screw according to claim 1 or 6, characterized in that, The surface structure direction of the pusher surface (3) forms an acute angle with the screw axis (1) at the front end of the feed extrusion section (5).

8. A serrated screw according to claim 7, characterized in that, The surface structure direction of the pusher surface (3) forms an obtuse angle with the screw axis (1) at the rear end of the feed extrusion section (5).

9. A serrated screw according to claim 1, characterized in that, The number of the saw teeth (7) is ≥2. The tooth depth of the saw teeth (7) is set to H, the tooth width is set to W and the tooth angle is set to α. The size of H is 3~8mm, the size of W is 3~6mm and the size of α is 60° to 90°.

10. A serrated screw according to claim 1, characterized in that, The saw teeth (7) are made of food-grade plastic or stainless steel.

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