A low-fat sausage oil in-situ replacement filling equipment

Abstract

This utility model discloses an in-situ fat substitution filling device for low-fat sausages, including a fixed frame. An annular spiral nozzle assembly is mounted on the upper end of the fixed frame. A control box is installed on the outer wall of the fixed frame. A meat paste conveying pump and a power drive pump are located on the outer side of the fixed frame. A drive connecting pipe connects the power drive pump and the annular spiral nozzle assembly. One end of the annular spiral nozzle assembly is connected to a meat paste outlet. A substitute conveying pump is connected to the upper end of the annular spiral nozzle assembly. An auxiliary drive pump and an auxiliary pump inlet are located on one side of the substitute conveying pump. One end of the meat paste conveying pump is connected to a meat paste connecting pipe. The annular spiral nozzle assembly structure forms a controllable annular space between the inner core tube and the outer tube. Through the substitute conveying pump and the auxiliary drive pump located in the inner core tube, the fat substitute is synchronously injected during the filling process, thereby achieving in-situ fusion with the meat paste at the filling front.

Description

Technical Field

[0001] This utility model relates to the field of food processing, and in particular to an in-situ fat substitution filling device for low-fat sausages. Background Technology

[0002] Based on the traditional sausage filling structure, the sausage filling equipment introduces annular spiral guide nozzle, multi-channel injection mechanism for substitutes, and back-suction sealing structure, which realizes real-time distribution and replacement of fat during the sausage filling process. It is particularly suitable for the industrial production process of low-fat healthy meat products.

[0003] Currently, uneven oil distribution and complex post-processing of substitutes are common problems in the filling process of traditional sausage products. Most low-fat sausages are manufactured using a pre-filling followed by substitution or mixed filling method, making it difficult for the substitutes to be evenly distributed in the microstructure. For example, CN110967936A discloses a sausage oil substitution process, which can control the substitution ratio to some extent, but fails to solve the problem of in-situ filling accuracy from the perspective of equipment filling structure.

[0004] The main drawback of the existing solutions is the lack of structural inconsistency and synchronization control during the filling process. In other words, in high-speed production lines, the minced meat and the alternative oil flow channels operate independently, making it impossible to achieve in-situ injection or homogeneous coordination. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an in-situ fat substitution filling device for low-fat sausages.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a low-fat sausage oil in-situ replacement filling device, including a fixed frame, an annular spiral filling nozzle assembly disposed at the upper end of the fixed frame, a control box mounted on the outer wall of the fixed frame, a meat paste conveying pump and a power drive pump disposed on the outer side of the fixed frame, a drive connecting pipe connecting the power drive pump and the annular spiral filling nozzle assembly, and a meat paste outlet connected to one end of the annular spiral filling nozzle assembly. The upper end of the assembly is connected to a substitute delivery pump. An auxiliary drive pump and an auxiliary pump inlet are provided on one side of the substitute delivery pump. One end of the minced meat delivery pump is connected to a minced meat connecting pipe. One end of the minced meat connecting pipe is connected to a drive shaft. The drive shaft is connected to an annular gap spiral nozzle assembly. The annular gap spiral nozzle assembly includes an outer tube, an inner core tube, an annular gap, a spiral guide vane, a back-suction sealing structure, and a filling diameter adjustment ring. The back-suction sealing structure includes a sealing valve seat, a sealing valve core, and a linear actuator for driving axial movement.

[0007] As a further description of the above technical solution:

[0008] The control box is fixedly installed on the outer wall of the fixed frame, and the annular spiral nozzle assembly is fixedly installed on the upper surface of the fixed frame. The control box is electrically connected to the annular spiral nozzle assembly. The meat filling pump and the power drive pump are fixedly installed on the outside of the fixed frame. The meat filling pump is connected to the power drive pump, and the meat filling pump and the power drive pump are connected to the annular spiral nozzle assembly.

[0009] As a further description of the above technical solution:

[0010] The meat paste outlet is fixedly installed at one end of the annular spiral nozzle assembly. The substitute delivery pump is fixedly connected to the top of the annular spiral nozzle assembly and close to the meat paste outlet. The auxiliary drive pump is located on one side of the substitute delivery pump. The auxiliary pump inlet is fixedly installed at the bottom of the auxiliary drive pump. The auxiliary pump inlet is integrally connected to the top of the annular spiral nozzle assembly and away from the meat paste outlet.

[0011] As a further description of the above technical solution:

[0012] The drive shaft is fixedly connected to one end of the bottom of the annular spiral nozzle assembly, the meat filling connecting pipe is fixedly connected between the meat filling pump and the drive shaft, and the drive connecting pipe is fixedly connected between the power drive pump and the annular spiral nozzle assembly.

[0013] As a further description of the above technical solution:

[0014] The outer tube is fixedly connected to the drive shaft, and the inner core tube is fixedly connected to the substitute delivery pump. The annular gap spiral nozzle assembly is provided with a spiral guide vane and an annular gap inside. The spiral guide vane is located between the outer tube and the inner core tube and is located in the annular gap. The end of the annular gap spiral nozzle assembly is integrally connected with a back-suction sealing structure. A filling diameter adjustment ring is detachably installed on the outside of the back-suction sealing structure.

[0015] As a further description of the above technical solution:

[0016] The sealing valve seat is fixedly installed at the filling outlet, the sealing valve core is fixedly installed inside the sealing valve seat, and the linear actuator is installed inside the annular spiral nozzle assembly and is electrically connected to the control box.

[0017] This utility model has the following beneficial effects:

[0018] This invention employs an annular gap spiral nozzle assembly structure, forming a controllable annular gap space between the inner core tube and the outer tube. Through a substitute delivery pump and an auxiliary drive pump located in the inner core tube, the oil substitute is synchronously injected during the filling process, achieving in-situ fusion with the minced meat at the filling front. This in-situ synergistic method differs from existing offline mixing and post-injection methods, helping to improve the uniformity of the microscopic distribution of the substitute material within the sausage's internal structure, significantly improving the product's texture stability and taste consistency.

[0019] This equipment integrates the meat filling pump, power-driven pump, substitute pump, and auxiliary drive pump around a fixed frame. These components, along with a drive shaft and spiral guide vanes, form a filling propulsion system. Within a limited space, it achieves simultaneous dual-fluid propulsion and adjustment. The equipment boasts a compact structure and a rationally distributed functional module layout. By controlling the electrical connections between the control box and each pump, independent adjustment and coordinated control of different fluid channels can be achieved, improving the controllability of the filling cycle and product consistency.

[0020] The back-suction sealing structure at the end of the filling assembly, consisting of a sealing valve seat, a sealing valve core, and a linear actuator, forms an opening and closing mechanism. This allows for negative pressure back-suction of the fluid at the end of filling or during pauses, preventing liquid dripping and contamination, improving equipment cleanliness, and meeting meat product hygiene standards. Furthermore, the addition of a filling nozzle adjustment ring allows for rapid switching of filling nozzles to accommodate different casing sizes, enhancing the equipment's adaptability to various product lines. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a low-fat sausage oil in-situ replacement filling device proposed in this utility model.

[0022] Figure 2 This is a top sectional view of a low-fat sausage in-situ fat replacement filling device proposed in this utility model;

[0023] Figure 3 This is a front sectional view of a low-fat sausage oil in-situ replacement filling device proposed in this utility model.

[0024] Legend:

[0025] 1. Fixed frame; 2. Control box; 3. Minced meat conveying pump; 4. Power drive pump; 5. Annular gap spiral nozzle assembly; 6. Substitute conveying pump; 7. Minced meat outlet; 8. Auxiliary drive pump; 9. Drive shaft; 10. Drive connecting pipe; 11. Auxiliary pump inlet; 12. Minced meat connecting pipe; 51. Outer pipe; 52. Inner core pipe; 53. Annular gap; 54. Spiral guide vane; 55. Back-suction sealing structure; 56. Filling diameter adjustment ring; 551. Sealing valve seat; 552. Sealing valve core; 553. Linear actuator. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be noted that the terms "center," "up," "down," "left," "right," "vertical," "horizontal," "inside," and "outside," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplification, 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. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections 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 based on the specific circumstances.

[0028] Reference Figure 1-3 One embodiment provided by this utility model:

[0029] Example 1:

[0030] A low-fat sausage oil in-situ substitution filling device includes a fixed frame 1. An annular spiral nozzle assembly 5 is mounted on the upper end of the fixed frame 1. A control box 2 is installed on the outer wall of the fixed frame 1. A meat paste conveying pump 3 and a power drive pump 4 are arranged on the outer side of the fixed frame 1. A drive connecting pipe 10 connects the power drive pump 4 and the annular spiral nozzle assembly 5. One end of the annular spiral nozzle assembly 5 is connected to a meat paste outlet 7. A substitute material conveying pump 6 is connected to the upper end of the annular spiral nozzle assembly 5. A substitute material conveying pump 6 is provided on one side. There is an auxiliary drive pump 8 and an auxiliary pump inlet 11. One end of the meat paste conveying pump 3 is connected to a meat paste connecting pipe 12. One end of the meat paste connecting pipe 12 is connected to a drive shaft 9. The drive shaft 9 is connected to an annular gap spiral nozzle assembly 5. The annular gap spiral nozzle assembly 5 includes an outer tube 51, an inner core tube 52, an annular gap 53, a spiral guide vane 54, a back-suction sealing structure 55, and a filling diameter adjustment ring 56. The back-suction sealing structure 55 includes a sealing valve seat 551, a sealing valve core 552, and a linear actuator 553 that drives the sealing valve core 552 to move axially.

[0031] Working principle and usage process: This equipment uses the integrated annular spiral nozzle assembly as its core component to achieve dual-channel in-situ delivery, mixing and synchronous filling of minced meat fluid and substitute components.

[0032] The inner core tube 52 is fed by the substitute delivery pump 6, which injects grease substitute into the central channel;

[0033] The outer tube 51 is driven by the meat transfer pump 3 and the power drive pump 4. The meat is propelled along the annular gap 53 in a spiral flow form by the spiral guide vane 54. The substitute material is combined with the meat in the mixing zone at the front end of the annular gap through the inner core tube to form a structurally stable two-component filling flow.

[0034] The back-suction sealing structure 55 ensures that spray residue is prevented when the machine is stopped or the material is changed, thus improving the cleanliness of the filling process; the linear actuator 553 can control the axial movement of the sealing valve core 552 to realize the opening and closing action of the filling port; the filling port diameter adjustment ring 56 adapts to the filling needs of casings of different diameters, improving the versatility of the equipment.

[0035] Through the above-mentioned structural synergy, the equipment achieves in-situ fusion and synchronous injection and continuous filling of minced meat main ingredient and low-fat substitute, significantly optimizing the flow field uniformity and substitution efficiency of the filling process.

[0036] Example 2:

[0037] The control box 2 is fixedly installed on the outer wall of the fixed frame 1. The annular gap spiral nozzle assembly 5 is fixedly installed on the upper surface of the fixed frame 1. The control box 2 is electrically connected to the annular gap spiral nozzle assembly 5. The meat conveying pump 3 and the power drive pump 4 are fixedly installed on the outside of the fixed frame 1. The meat conveying pump 3 is connected to the power drive pump 4. The meat conveying pump 3 and the power drive pump 4 are connected to the annular gap spiral nozzle assembly 5.

[0038] The improvement of the implementation scheme of this embodiment compared with the prior art is that: by fixing the control box 2 to the outer wall of the fixed frame 1, fixing the annular spiral nozzle assembly 5 to the top of the frame, and rationally arranging the meat conveying pump 3 and the power drive pump 4 on the outside of the frame, the key components are highly integrated at the vertical structural level.

[0039] In this embodiment, the minced meat conveying pump 3 and the power-driven pump 4 are physically connected to achieve synchronous control of fluid dynamics, and form a connected integrated propulsion system with the filling assembly 5. This configuration overcomes the problems of uneven pressure and flow rate fluctuations in the multi-stage conveying of existing technologies. Through unified control logic, the minced meat supply in the filling stage can be more stable and the flow rate more controllable, improving filling accuracy and cycle synchronization.

[0040] The electrical connection between the control box 2 and the annular gap spiral nozzle assembly 5 enables centralized control of multiple actuators such as linear actuators and spiral guide vane rotation mechanisms for sealing, driving, and adjustment.

[0041] Example 3:

[0042] The meat paste outlet 7 is fixedly installed at one end of the annular spiral nozzle assembly 5. The substitute delivery pump 6 is fixedly connected to the top of the annular spiral nozzle assembly 5 and close to the meat paste outlet 7. The auxiliary drive pump 8 is located on one side of the substitute delivery pump 6. The auxiliary pump inlet 11 is fixedly installed at the bottom of the auxiliary drive pump 8. The auxiliary pump inlet 11 is integrally connected to the top of the annular spiral nozzle assembly 5 and away from the meat paste outlet 7.

[0043] The drive shaft 9 is fixedly connected to one end of the bottom of the annular spiral nozzle assembly 5, the meat filling connecting pipe 12 is fixedly connected between the meat filling pump 3 and the drive shaft 9, and the drive connecting pipe 10 is fixedly connected between the power drive pump 4 and the annular spiral nozzle assembly 5.

[0044] The improvement of this embodiment over the prior art lies in the following: By placing the substitute delivery pump 6 at the top of the annular spiral nozzle assembly 5 and near the meat paste outlet 7, the substitute achieves a short, direct path before merging with the meat paste, thereby reducing the residence time of the substitute material, pipeline lag, and energy loss. Simultaneously, the auxiliary drive pump 8 and auxiliary pump inlet 11 provide pressure control from the other side, assisting in adjusting the substitute material flow rate and flow pattern, enabling the substitute to be dynamically injected in situ and evenly distributed in space at the nozzle tip.

[0045] In this structure, the drive shaft 9 is located at the bottom of the nozzle assembly. It guides material from the meat feed pump 3 through the meat feed connecting pipe 12, driving the spiral guide vanes to rotate and propel the material, thus achieving stable feeding and uniform spiral conveying during the meat feed process. Simultaneously, the power drive pump 4 provides the necessary rotational power to the system through the drive connecting pipe 10, assisting in the formation of a spiral flow field and improving the micro-scale mixing accuracy of the meat feed and substitutes at the outlet end, as well as the consistency of the filling speed.

[0046] This embodiment features a three-dimensionally coupled feeding system with top-mounted substitute material inlet, side-mounted auxiliary adjustment, and bottom-mounted drive shaft feeding. Combined with the rational distribution of upper and lower flow channels, this ensures more balanced and controllable pressure, flow rate, and velocity of the substitute and minced meat during the dynamic filling process. Through this multi-point collaborative control architecture, the substitute injection rate, minced meat propulsion speed, and spiral flow frequency can be flexibly adjusted according to the structural requirements of different products, achieving precise adaptation to the taste structure and ingredient ratio requirements of various low-fat products.

[0047] Example 4:

[0048] The outer tube 51 is fixedly connected to the drive shaft 9, and the inner core tube 52 is fixedly connected to the substitute delivery pump 6. The annular gap type spiral nozzle assembly 5 is provided with a spiral guide plate 54 and an annular gap 53 inside. The spiral guide plate 54 is located between the outer tube 51 and the inner core tube 52, and the spiral guide plate 54 is located in the annular gap 53. The end of the annular gap type spiral nozzle assembly 5 is integrally connected with a back suction sealing structure 55. A filling diameter adjustment ring 56 is detachably installed on the outside of the back suction sealing structure 55.

[0049] The sealing valve seat 551 is fixedly installed at the filling outlet, the sealing valve core 552 is fixedly installed inside the sealing valve seat 551, and the linear actuator 553 is installed inside the annular gap spiral nozzle assembly 5 and is electrically connected to the control box 2.

[0050] The improvement of this embodiment over the prior art lies in the following: In this embodiment, the outer tube 51 is fixedly connected to the drive shaft 9, driving the entire nozzle assembly to rotate stably, while the inner core tube 52 is fixedly connected to the substitute delivery pump 6, ensuring that the substitute is injected into the central flow channel from top to bottom; the spiral guide vane 54 set in the middle is arranged in the annular gap 53 to achieve continuous guidance and spiral propulsion of the meat paste flow in the annular gap. This effectively solves the problems of uneven meat paste propulsion speed and unstable substitute flow in the prior art, enhancing the structural homogeneity and tissue density of the final product.

[0051] In this embodiment, a back-suction sealing structure 55 is provided at the end of the nozzle assembly 5, including a sealing valve seat 551, a sealing valve core 552, and a matching linear actuator 553 for its drive mechanism. When filling is completed or interrupted, this structure can control the valve core to fall back through the actuator, thereby achieving dynamic closure of the outlet. It also uses the instantaneously generated negative pressure to perform a back-suction action, thereby drawing the material remaining at the nozzle end back into the system, preventing liquid dripping and contaminating the equipment or workstation.

[0052] To accommodate casings or other containers of different sizes, this design incorporates a filling nozzle adjustment ring 56 on the outer side of the back-suction structure, enabling rapid switching and precise control of the end outlet diameter. This adjustment ring is detachable, facilitating easy operation and quick replacement, effectively avoiding complex disassembly or nozzle wear issues caused by switching between different nozzle diameters.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A low-fat sausage in-situ oil replacement filling apparatus comprising a stationary frame (1), characterized in that: An annular spiral nozzle assembly (5) is provided at the upper end of the fixed frame (1). A control box (2) is installed on the outer wall of the fixed frame (1). A meat paste conveying pump (3) and a power drive pump (4) are provided on the outer side of the fixed frame (1). A drive connecting pipe (10) is connected between the power drive pump (4) and the annular spiral nozzle assembly (5). A meat paste outlet (7) is connected to one end of the annular spiral nozzle assembly (5). A substitute conveying pump (6) is connected to the upper end of the annular spiral nozzle assembly (5). An auxiliary drive pump (8) and an auxiliary pump inlet are provided on one side of the substitute conveying pump (6). (11) One end of the meat transfer pump (3) is connected to a meat connecting pipe (12), and one end of the meat connecting pipe (12) is connected to a drive shaft (9). The drive shaft (9) is connected to an annular spiral nozzle assembly (5). The annular spiral nozzle assembly (5) includes an outer tube (51), an inner core tube (52), an annular gap (53), a spiral guide vane (54), a back-suction sealing structure (55), and a filling diameter adjustment ring (56). The back-suction sealing structure (55) includes a sealing valve seat (551), a sealing valve core (552), and a linear actuator (553) that drives the sealing valve core (552) to move axially.

2. The low-fat sausage in-situ fat substitution filling equipment according to claim 1, characterized in that: The control box (2) is fixedly installed on the outer wall of the fixed frame (1), the annular spiral nozzle assembly (5) is fixedly installed on the upper surface of the fixed frame (1), the control box (2) is electrically connected to the annular spiral nozzle assembly (5), the meat conveying pump (3) and the power drive pump (4) are fixedly installed on the outside of the fixed frame (1), the meat conveying pump (3) is connected to the power drive pump (4), and the meat conveying pump (3) and the power drive pump (4) are connected to the annular spiral nozzle assembly (5).

3. The low-fat sausage oil in-situ replacement filling equipment according to claim 1, characterized in that: The meat paste outlet (7) is fixedly installed at one end of the annular spiral nozzle assembly (5). The substitute delivery pump (6) is fixedly connected to the top of the annular spiral nozzle assembly (5) and close to the meat paste outlet (7). The auxiliary drive pump (8) is located on one side of the substitute delivery pump (6). The auxiliary pump inlet (11) is fixedly installed at the bottom of the auxiliary drive pump (8). The auxiliary pump inlet (11) is integrally connected to the top of the annular spiral nozzle assembly (5) and away from the meat paste outlet (7).

4. The low-fat sausage in-situ fat substitution filling equipment according to claim 1, characterized in that: The drive shaft (9) is fixedly connected to one end of the bottom of the annular spiral nozzle assembly (5), the meat filling connecting pipe (12) is fixedly connected between the meat filling pump (3) and the drive shaft (9), and the drive connecting pipe (10) is fixedly connected between the power drive pump (4) and the annular spiral nozzle assembly (5).

5. The low-fat sausage in-situ fat substitution filling equipment according to claim 1, characterized in that: The outer tube (51) is fixedly connected to the drive shaft (9), and the inner core tube (52) is fixedly connected to the substitute delivery pump (6). The annular gap type spiral nozzle assembly (5) is provided with a spiral guide plate (54) and an annular gap (53) inside. The spiral guide plate (54) is disposed between the outer tube (51) and the inner core tube (52), and the spiral guide plate (54) is located in the annular gap (53). The end of the annular gap type spiral nozzle assembly (5) is integrally connected with a back-suction sealing structure (55). The outer side of the back-suction sealing structure (55) is detachably installed with a filling diameter adjustment ring (56).

6. The low-fat sausage in-situ fat substitution filling equipment according to claim 1, characterized in that: The sealing valve seat (551) is fixedly installed at the filling outlet, the sealing valve core (552) is fixedly installed inside the sealing valve seat (551), and the linear actuator (553) is installed inside the annular spiral nozzle assembly (5) and is electrically connected to the control box (2).

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