Double-layer protein bar pressing equipment

Abstract

The utility model provides double-layer protein bar pressing equipment. The utility model relates to double-layer protein bar pressing equipment which comprises a rack, a conveying mechanism and two groups of rolling mechanisms, wherein the conveying mechanism and the two groups of rolling mechanisms are arranged on the rack; the two rolling mechanisms are arranged in the feeding direction of the conveying mechanism in a spaced mode and matched with the conveying mechanism to achieve two-time extrusion on protein bar raw materials. The rolling mechanism comprises a supporting part arranged on the rack, a material pressing roller and a friction roller which are rotationally arranged on the supporting part, and a driving part arranged on the supporting part; and the driving part is in chain transmission connection with the material pressing roller and the friction roller respectively, so that the material pressing roller and the friction roller rotate in the same direction. The double-layer protein bar pressing equipment can improve the phenomenon that the product forming quality is poor due to the fact that raw materials adhere to the pressing rollers, and has the advantage of being high in product percent of pass.

Description

Technical Field

[0001] This utility model relates to the technical field of protein bar production equipment, and in particular to a double-layer protein bar pressing device. Background Technology

[0002] Protein bar pressing equipment is one of the core devices used in food processing to prepare nutritional bars. It typically consists of a feeding mechanism, a double-roller pressing and forming module, and a conveyor belt. Its core working principle is to simultaneously press the upper protein mixture and the lower energy supplement layer using two sets of parallel pressure rollers, achieving a dense bond between the two layers under specific pressure and temperature conditions. Conventional equipment often uses stainless steel pressure rollers with polished surfaces to reduce the coefficient of friction. It is suitable for processing raw materials with high viscosity, such as whey protein and soy protein, and the single-machine capacity can meet the needs of small to medium-sized production lines.

[0003] In existing technologies, pressure rollers maintain a constant processing temperature through electric heating or water circulation, while mechanical pressure adjustment mechanisms control the forming thickness. While this basic equipment can complete the initial compounding of two layers of raw materials, in actual production, it has been found that when the upper and lower layers of raw materials differ significantly in moisture content or viscoelasticity, the high-viscosity protein layer easily adheres to the pressure roller surface. Accumulation of adhesive on the roller surface leads to uneven pressure on subsequent raw materials, resulting in problems such as surface cracking, density delamination, or distorted cross-sectional shape in the finished product. Testing and analysis indicate that the material adhesion phenomenon is mainly caused by a decrease in the surface smoothness of the pressure roller or insufficient temperature control accuracy. The residue of viscous substances not only reduces the continuous operating time of the equipment, requiring frequent shutdowns for manual cleaning, but also causes fluctuations in the forming quality of batch products due to unstable roller surface conditions. Existing improvement solutions often reduce adhesion by increasing the amount of release agent sprayed, but this easily results in oil film residue on the surface of the protein bars, affecting taste and appearance quality, while also increasing auxiliary material costs.

[0004] Based on the existing technologies described above, it is clear that optimizing the equipment structure to achieve additive-free anti-sticking processing has become a key technological bottleneck in improving the qualification rate of double-layer protein bars. Utility Model Content

[0005] In view of this, the present invention aims to provide a double-layer protein bar pressing device, which can effectively improve the phenomenon of raw material adhering to the pressing roller, thereby improving the product qualification rate of double-layer protein bars.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A double-layer protein bar pressing device includes a frame, a conveying mechanism and two sets of roller pressing mechanisms disposed on the frame;

[0008] The two sets of roller pressing mechanisms are arranged at intervals along the feeding direction of the conveying mechanism and cooperate with the conveying mechanism to achieve two extrusions of the protein bar raw material;

[0009] The roller pressing mechanism includes a support part disposed on the frame, a pressure roller and a friction roller rotatably disposed on the support part, and a drive part disposed on the support part;

[0010] The drive unit is connected to the pressure roller and the friction roller via chain drive, so that the pressure roller and the friction roller rotate in the same direction.

[0011] Furthermore, the linear velocity of the pressure roller closest to the conveying mechanism is consistent with the feeding speed of the conveying mechanism.

[0012] Furthermore, it also includes a hopper, which is disposed on the support portion on the side near the feed end of the conveying mechanism.

[0013] Furthermore, an adjustment mechanism, including a slider, is provided at the top of the support portion, which is slidably disposed on the support portion in the vertical direction;

[0014] The screw is threaded into the support part in the vertical direction, and one end is fixedly connected to the slider.

[0015] Furthermore, the slider and the screw are arranged in pairs about the center of the pressure roller, and the two ends of the pressure roller are respectively rotatably mounted on the two sliders.

[0016] Furthermore, the ends of the two screws away from the slider are synchronized and rotate in the same direction through a chain drive structure, and a handwheel is detachably provided on the ends of the screws away from the slider.

[0017] Furthermore, the conveying mechanism includes a conveyor belt and a bidirectional servo motor;

[0018] The drive shaft of the conveyor belt is connected to the power output shaft of the bidirectional servo motor via a chain drive structure.

[0019] Furthermore, the bottom of the frame is equipped with multiple casters.

[0020] Furthermore, the friction roller is fitted with a flexible layer made of flexible material, and friction patterns parallel to the axis of the friction roller are formed on the flexible layer.

[0021] Compared with the prior art, this utility model has the following advantages:

[0022] This invention discloses a double-layer protein bar pressing device. The frame of the device limits the placement and installation of the conveying mechanism and two sets of roller pressing mechanisms, providing stable support during the pressing process in conjunction with the conveying mechanism. The conveying mechanism transports the protein bar raw material, feeding the flattened material under the roller pressing mechanism. The roller pressing mechanism then presses the raw material to a preset thickness and sends the pressed material to the next station for further processing. The support section of the roller pressing mechanism provides limiting support for the pressure roller and friction roller, while the drive section drives their movement. By adjusting the distance between the pressure roller and the upper surface of the conveying mechanism, the protein bars can be pressed to the preset thickness in conjunction with the conveying mechanism. The friction roller, which rotates in the same direction as the pressure roller, has a speed opposite to that of the contact point between the friction roller and the pressure roller. By adjusting the position of the friction roller, the protein bar raw material adhering to the pressure roller can be physically scraped off. The material is removed from the pressure roller in the early stage of adhesion, which effectively improves the poor product molding quality caused by the raw material adhering to the pressure roller, thereby achieving the invention objective of improving the product qualification rate of double-layer protein bars.

[0023] Secondly, by adjusting the drive unit, the linear velocity of the lowest point in the vertical direction on the pressure roller is aligned with the feeding speed of the conveying mechanism. This ensures that the lowest point in the vertical direction on the pressure roller, i.e. the contact point between the pressure roller and the protein bar raw material, remains relatively stationary in the horizontal direction. This reduces the force exerted by the pressure roller on the protein bar raw material in the horizontal direction, which not only improves the phenomenon of material adhering to the pressure roller but also benefits the molding quality of the product.

[0024] In addition, by setting a hopper on the side of the support unit near the feeding end of the conveying mechanism, workers can add different types of solid powdered raw materials to the top of the protein bar raw materials through the hopper, and press them together with the protein bar raw materials to form a shape, thereby expanding the range of protein bar varieties that can be processed. Attached Figure Description

[0025] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0026] Figure 1 This is a schematic diagram of the structure of a double-layer protein bar pressing device according to an embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the roller pressing mechanism in an embodiment of the present invention;

[0028] Figure 3This is a schematic diagram of the conveying mechanism in an embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram of the adjustment mechanism in an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Frame; 101. Casters; 2. Conveying mechanism; 201. Conveyor belt; 202. Bidirectional servo motor; 3. Roller pressing mechanism; 301. Support unit; 302. Pressing roller; 303. Friction roller; 304. Drive unit; 4. Hopper; 5. Adjusting mechanism; 501. Slider; 502. Screw; 503. Handwheel. Detailed Implementation

[0032] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.

[0033] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Taking the double-layer protein bar pressing device described in this utility model as an example, the directional terms used in the embodiments, such as "up," "down," "left," "right," "front," and "back," are defined based on the vertical direction (also known as the height direction or the Z-direction), the horizontal direction (also known as the width direction or the Y-direction), and the front-back direction (also known as the length direction or the X-direction) of the double-layer protein bar pressing device. "Inner" and "outer" are defined based on the outline of the corresponding components. For example, "inner" and "outer" are defined based on the outline of the double-layer protein bar pressing device, with the side of the outline closer to the middle of the device being "inner," and the opposite side being "outer."

[0035] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances. The utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] The following will refer to the appendix. Figure 1 To be continued Figure 4 The present invention will be described in detail with reference to the embodiments.

[0037] This embodiment relates to a double-layer protein bar pressing device, which adopts a structure that has a scraping effect on the pressure roller. Through physical friction, the material is removed from the pressure roller in the early stage of material adhesion to the pressure roller, thereby effectively improving the phenomenon of poor product molding quality caused by raw material adhesion to the pressure roller, and thus achieving the invention objective of improving the product qualification rate of double-layer protein bars.

[0038] In terms of overall structure, refer to Figure 1 and Figure 2 This embodiment of a double-layer protein bar pressing device includes a frame 1, a conveying mechanism 2, and two sets of roller pressing mechanisms 3. The frame 1 is mounted on a horizontal surface, and the conveying mechanism 2 and the two sets of roller pressing mechanisms 3 are all mounted on the frame 1. The two sets of roller pressing mechanisms 3 are arranged at intervals along the feeding direction of the conveying mechanism 2, and through cooperation with the conveying mechanism 2, they achieve two-stage extrusion of the protein bar raw material on the conveying mechanism 2. The roller pressing mechanism 3 includes a support part 301, a pressure roller 302, a friction roller 303, and a drive part 304. The support part 301 is fixedly mounted on the frame 1, and the pressure roller 302 and the friction roller 303 are rotatably mounted on the support part 301. Both the pressure roller 302 and the friction roller 303 are connected to the drive part 304 via chain drive. The pressure roller 302 and the friction roller 303 rotate in the same direction under the driving action of the drive part 304.

[0039] As configured above, the frame 1 serves to limit the placement and installation of the conveying mechanism 2 and the two sets of roller pressing mechanisms 3, providing stable support during the extrusion of the protein bar raw material by the roller pressing mechanism 3 in conjunction with the conveying mechanism 2. The conveying mechanism 2 transports the protein bar raw material, feeding the flattened material under the roller pressing mechanism 3, where it is pressed to a preset thickness, and then sent to the next station for further processing.

[0040] The support part 301 in the rolling mechanism 3 provides limiting support for the pressure roller 302 and the friction roller 303, while the drive part 304 drives the movement of the pressure roller 302 and the friction roller 303. By adjusting the distance between the pressure roller 302 and the upper surface of the conveying mechanism 2, the protein bars can be pressed to a preset thickness in conjunction with the conveying mechanism 2. The friction roller 303, which rotates in the same direction as the pressure roller 302, has a speed direction opposite to that of the contact point with the pressure roller 302. By adjusting the position of the friction roller 303, the protein bar raw material adhering to the pressure roller 302 can be physically scraped off. This timely removal of material from the pressure roller in the early stages of adhesion effectively improves the poor product molding quality caused by raw material adhering to the pressure roller, thereby achieving the invention objective of improving the product qualification rate of double-layer protein bars.

[0041] Reference Figure 1 and Figure 2 To further improve the product forming quality, in this embodiment, the linear velocity of the lowest point in the vertical direction of the pressure roller 302, which is closest to the conveying mechanism 2, is consistent with the magnitude and direction of the feeding speed of the conveying mechanism 2.

[0042] By adjusting the drive unit 304, the linear velocity of the lowest point in the vertical direction on the pressure roller 302 is aligned with the feeding speed of the conveying mechanism 2. This ensures that the lowest point in the vertical direction on the pressure roller 302, i.e. the contact point between the pressure roller 302 and the protein bar raw material, remains relatively stationary in the horizontal direction. This reduces the force exerted by the pressure roller 302 on the protein bar raw material in the horizontal direction, which not only improves the phenomenon of material adhering to the pressure roller 302 but also benefits the molding quality of the product.

[0043] Reference Figure 1 To expand the range of processable protein bars in this application, the double-layer protein bar pressing device further includes a hopper 4 in this embodiment. The hopper 4 can be a hollow metal box with an opening at the top, inclined guide sections on the side walls, and a screen feeding port at the bottom. The hopper 4 is installed on the top of the support 301 near the feeding end of the conveying mechanism 2. The hopper 4 is fixed to the support 301 by fastening bolts.

[0044] By setting a hopper 4 on the side of the support 301 near the feeding end of the conveying mechanism 2, workers can add different types of solid powdered raw materials to the top of the protein bar raw materials through the hopper 4, and press them together with the protein bar raw materials to form a shape, thereby expanding the range of protein bar varieties that can be processed.

[0045] Reference Figure 1 and Figure 4To expand the range of processable protein bars in this application, the double-layer protein bar pressing device in this embodiment further includes an adjustment mechanism 5. The adjustment mechanism 5 includes a slider 501, a screw 502, and a handwheel 503. The slider 501 is slidably mounted on the support 301 in a vertical direction, and the screw 502 passes through the slider 501 in a vertical direction and is threadedly engaged with it. Rotating the screw 502 causes the slider 501 to slide relative to the support 301 in a vertical direction. By fixing the slider 501 to the pressure roller 302, rotating the screw 502 drives the pressure roller 302, thereby adjusting the vertical distance between the pressure roller 302 and the conveying mechanism 2. The handwheel 503 is detachably mounted on the end of the screw 502 away from the slider 501 via a snap-fit ​​mechanism. The handwheel 503 allows operators to perform fine adjustments more easily.

[0046] To improve the stability of the equipment, the screw 502 and slider 501 in the adjustment mechanism 5 can be configured as two symmetrically distributed about the geometric center of the pressure roller 302, with the two ends of the pressure roller 302 respectively rotatably mounted on the two sliders 501.

[0047] In order to keep the height adjustment process of the two ends of the pressure roller 302 consistent, the ends of the two screws 502 away from the slider 501 are connected by a chain drive structure to achieve synchronous, same-direction and same-speed movement, so that the two ends of the pressure roller 302 can rise and fall synchronously.

[0048] Reference Figure 1 and Figure 3 The conveying mechanism 2 includes a conveyor belt 201 and a bidirectional servo motor 202. Power is transmitted between the drive shaft of the conveyor belt 201 and the power output shaft of the bidirectional servo motor 202 via a chain drive connection structure. One end of the conveyor belt 201 is fixedly connected to the top of the frame 1 via a connecting plate. The bottom of the other end of the conveyor belt 201 is provided with a support leg that is perpendicular to the ground and has an adjustable height.

[0049] Reference Figure 1 To facilitate equipment movement, the bottom of the frame 1 is equipped with multiple casters 101. To improve the cleaning effect of the friction roller 303 on the pressure roller 302, a flexible layer made of a flexible material, such as rubber or a polymer composite material, is fitted onto the friction roller 303. The flexible layer of the friction roller 303 has friction patterns. The direction of the friction patterns is parallel to the axial direction of the friction roller 303.

[0050] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A double-layer protein bar pressing device, characterized in that: It includes a frame (1), a conveying mechanism (2) and two sets of roller pressing mechanisms (3) disposed on the frame (1); The two sets of roller pressing mechanisms (3) are arranged at intervals along the feeding direction of the conveying mechanism (2) and cooperate with the conveying mechanism (2) to achieve two extrusions of the protein bar raw material; The roller pressing mechanism (3) includes a support part (301) disposed on the frame (1), a pressing roller (302) and a friction roller (303) rotatably disposed on the support part (301), and a driving part (304) disposed on the support part (301); The drive unit (304) is connected to the pressure roller (302) and the friction roller (303) by chain drive, so that the pressure roller (302) and the friction roller (303) rotate in the same direction.

2. The double-layer protein bar pressing device according to claim 1, characterized in that: The linear velocity of the pressure roller (302) closest to the conveying mechanism (2) is the same as the feeding speed of the conveying mechanism (2).

3. The double-layer protein bar pressing device according to claim 1, characterized in that: It also includes a hopper (4), which is disposed on the support (301) on the side near the feed end of the conveying mechanism (2).

4. The double-layer protein bar pressing device according to claim 1, characterized in that: The top of the support part (301) is provided with an adjustment mechanism (5), including a slider (501), which is slidably disposed on the support part (301) in the vertical direction; The screw (502) is threadedly engaged with the support (301) in the vertical direction, and one end is fixedly connected to the slider (501).

5. The double-layer protein bar pressing device according to claim 4, characterized in that: The slider (501) and the screw (502) are arranged in pairs about the center of the pressure roller (302), and the two ends of the pressure roller (302) are respectively rotatably mounted on the two sliders (501).

6. The double-layer protein bar pressing device according to claim 5, characterized in that: The ends of the two screws (502) away from the slider (501) are driven by a chain transmission structure to rotate synchronously in the same direction. A handwheel (503) is detachably provided at the ends of the screws (502) away from the slider (501).

7. The double-layer protein bar pressing device according to claim 1, characterized in that: The conveying mechanism (2) includes a conveyor belt (201) and a bidirectional servo motor (202); The drive shaft of the conveyor belt (201) is connected to the power output shaft of the bidirectional servo motor (202) via a chain drive structure.

8. The double-layer protein bar pressing device according to claim 1, characterized in that: The bottom of the frame (1) is provided with multiple casters (101).

9. The double-layer protein bar pressing device according to claim 1, characterized in that: The friction roller (303) is fitted with a flexible layer made of flexible material, and friction patterns are formed on the flexible layer parallel to the axis of the friction roller (303).

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