Pig hair scalding device
By using a pushing mechanism, the pigs can move automatically and continuously in the scalding tank, which solves the problems of uneven dwell time and unstable manual traction in the traditional scalding process, thus improving the efficiency and quality of hair removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN GUHAO MINGDING INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-01-03
- Publication Date
- 2026-04-28
AI Technical Summary
In the traditional scalding process for pigs, it is difficult to precisely control the time the pigs stay in the scalding tank, resulting in uneven hair removal or over-scalding, which affects the quality of scalding. In addition, the instability of manual traction makes it difficult to keep the pigs' posture and position consistent.
The system employs a pushing mechanism, including a sprocket, a pushing chain, and a drive unit. The rotation of the sprocket drives the pushing chain and pushing frame to move within the scalding tank, enabling automatic and continuous pushing of the pigs and ensuring uniform scalding.
This method enables pigs to move evenly within the scalding tank, improving hair removal efficiency, reducing manual intervention, lowering labor intensity, and ensuring consistent scalding results.
Smart Images

Figure CN224165569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of meat processing, and more specifically, it relates to a device for scalding pig hair. Background Technology
[0002] In pig slaughterhouses, the slaughtering and processing of pigs is a highly automated and standardized process, which includes scalding to remove hair. During scalding, pigs are transferred to a scalding tank for further treatment. The scalding tank is a container filled with hot water, typically maintained between 70-90 degrees Celsius, to ensure effective hair removal while avoiding adverse effects on the pork. Traditional scalding methods require manually guiding the pigs through the scalding tank. The speed and rhythm of manual guiding are difficult to maintain consistently, resulting in unpredictable time spent in the tank. Too short a time may not completely remove the hair, while too long a time may overcook the surface of the pork, affecting its texture. Due to the instability of manual guiding, the posture and position of the pigs in the scalding tank are also difficult to maintain consistently. This may result in some carcasses not fully contacting the hot water, thus affecting the quality of scalding. Utility Model Content
[0003] The purpose of this invention is to provide a scalding device for pig hair to achieve a uniform scalding degree for pigs.
[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a scalding device for pig hair, comprising a scalding tank, on which a pushing mechanism is provided; the pushing mechanism includes a support frame, a pushing component, and a driving device; the support frame is connected to the scalding tank; the pushing component includes a sprocket and a pushing chain; the sprocket includes a first sprocket and a second sprocket; the first sprocket and the second sprocket are connected to the support frame through sprocket bearings; the first sprocket and the second sprocket are connected through the pushing chain; the driving device is used to drive the first sprocket to rotate; a pushing frame is provided on the pushing chain; the pushing frame is used to push the pig to move within the scalding tank.
[0005] Furthermore, the pushing mechanism includes a pushing shaft and two pushing components; the pushing shaft includes a first pushing shaft and a second pushing shaft, which are respectively connected to the support frame via sprocket bearings; the two ends of the first pushing shaft are respectively connected to the first sprockets of the two pushing components; the two ends of the second pushing shaft are respectively connected to the second sprockets of the two pushing components; the pushing mechanism also includes a transmission component; the driving device drives the first pushing shaft to rotate through the transmission component, thereby driving the first sprockets at both ends of the first pushing shaft to rotate.
[0006] Furthermore, both the first and second sprockets are connected to the support frame via a tensioning assembly; the tensioning assembly includes an upper slide rail, a lower slide rail, a slider seat, and an adjusting screw; the upper and lower slide rails are fixedly connected to the support frame; the upper and lower slide rails are provided with raised slide tracks opposite each other; the slider seat is provided with a concave slide groove that mates with the slide track; the outer ring of the sprocket bearing is connected to the slider; the inner ring of the sprocket bearing is connected to the push shaft; the support frame is provided with a threaded hole; the adjusting screw mates with the threaded hole; the top of the adjusting screw abuts against the slider seat.
[0007] Furthermore, the pusher includes a frame surface and a mounting rod; the frame surface is connected to the mounting rod; the pusher chain includes multiple mounting links; each mounting link includes a mounting side plate; and the mounting rod is connected to the mounting side plate.
[0008] Furthermore, the pusher is also equipped with a buffer; the buffer is U-shaped, and its bottom is connected to the frame surface.
[0009] Furthermore, it also includes a rocking mechanism; the rocking mechanism includes a front roller, a rear roller, and a rocking assembly; both ends of the front roller and the rear roller are provided with rollers; the rollers are used to move on the hot water tank; the front roller and the rear roller are mounted on a support frame; the rocking assembly includes a rocking arm, a rocking connecting rod, and a connecting rod fixing seat; one end of the rocking arm is connected to a driving device, and the driving device drives the rocking arm to rotate; the other end of the rocking arm is hinged to the rocking connecting rod; both ends of the rocking connecting rod are respectively hinged to the rocking arm and the connecting rod fixing seat; a crossbeam is provided on the hot water tank; the connecting rod fixing seat is mounted on the crossbeam; the driving device is mounted on the support frame.
[0010] Furthermore, the hot water tank is provided with roller grooves; the rollers are disposed in the roller grooves.
[0011] Furthermore, the drive device includes a motor and a reducer; the motor is connected to the reducer; the reducer includes a second output shaft; the second output shaft is connected to the swing arm.
[0012] In summary, this invention offers the following advantages: By employing a pushing mechanism composed of a sprocket and a pushing chain, coupled with a drive device to rotate the first sprocket, the pushing chain and the pushing frame mounted on it are moved, achieving automatic and continuous pushing of pigs within the scalding tank. Compared to traditional manual traction or intermittent pushing methods, this significantly improves the production efficiency of scalding and dehairing pigs. The design of the pushing mechanism ensures smoother and more even movement of pigs within the scalding tank, avoiding uneven or incomplete dehairing caused by pigs moving too fast or too slow. It ensures that pigs fully contact the hot water during scalding, achieving optimal dehairing results. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall implementation.
[0014] Figure 2 , Figure 3 These are schematic diagrams of the pushing mechanism and the swinging mechanism from different angles in the embodiments.
[0015] Figure 4 This is a schematic diagram of the tensioning component.
[0016] Figure 5 This is a schematic diagram of the adjustment components.
[0017] Figure 6 This is a schematic diagram of the pusher frame.
[0018] Figure 7 This is a schematic diagram of the drive unit.
[0019] In the diagram: 1. Hot water tank; 2. Pusher frame; 21. Frame; 22. Connecting rod; 23. Mounting rod; 24. Buffer; 241. Support leg; 242. Connecting part; 3. Pushing mechanism; 31. First sprocket; 32. Second sprocket; 33. Pushing chain; 331. Mounting side plate; 341. First pushing shaft; 342. Second pushing shaft; 35. Driven wheel; 361. Adjusting seat; 362. Tensioning wheel; 363. 37. Fixed groove; 371. Tensioning assembly; 372. Upper slide rail; 373. Lower slide rail; 374. Adjusting screw; 375. Slider seat; 376. Positioning plate; 3777. Drive wheel; 4. Swing mechanism; 41. Front roller; 42. Rear roller; 43. Roller; 44. Swing arm; 45. Swing linkage; 46. Linkage fixing seat; 47. Crossbeam; 48. Roller groove; 5. Support frame; 51. Motor; 52. Reducer. Detailed Implementation
[0020] To make the technical problems, technical solutions and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly or indirectly attached to that other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to that other component. This "connection" is not limited to a fixed connection or a movable connection; the specific connection method should be determined based on the specific technical problem to be solved.
[0022] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] Example:
[0025] A scalding device for pig hair includes a scalding tank 1, which is trough-shaped and includes an inlet end and an outlet end. Hot water is contained in the scalding tank 1. Under the action of external force, the pig moves from the inlet end to the outlet end, completing the scalding of its hair and facilitating the subsequent hair removal. Preferably, the inlet end of the scalding tank 1 is provided with a slope extending from the bottom of the scalding tank 1. The slope reduces water splashing when the pig is transferred to the scalding tank 1.
[0026] A pushing mechanism 3 is provided on the scalding tank 1. The pushing mechanism 3 includes a support frame 5, a pushing component, and a driving device. The support frame 5 is connected to the scalding tank 1. The pushing component includes a sprocket and a pushing chain 33. The sprocket is connected to the support frame 5 through a sprocket bearing. The sprocket includes a first sprocket 31 and a second sprocket 32. The first sprocket 31 and the second sprocket 32 are connected through the pushing chain 33. The driving device is used to drive the first sprocket 31 to rotate. Multiple pushing frames 2 are provided on the pushing chain 33. The pushing frames 2 are evenly distributed on the pushing chain 33. The pushing frames 2 are used to push the pigs to move within the scalding tank 1. After the driving device is started, the first sprocket 31, in conjunction with the second sprocket 32, drives the pushing chain 33 to move cyclically on the support frame 5. This causes the pushing frames 2 to move cyclically on the support frame 5. The first sprocket 31 is located at the inlet end of the scalding tank 1, and the second sprocket 32 is located at the outlet end of the scalding tank 1. When the pusher frame 2 moves into the scalding tank 1, part of the pusher frame 2 is submerged in the hot water and moves from the inlet end to the outlet end under the drive of the pusher chain. After the pig enters the scalding tank 1, it slides down the inclined plane between the two pusher frames 2. The pusher frame 2 pushes the pig forward along a predetermined path in the scalding tank 1 until the scalding process is completed. The entire process realizes the automatic and continuous movement of the pig in the scalding tank 1. Since the speed of the pusher frame 2 is constant, the time the pig stays in the scalding tank 1 is consistent, and the scalding effect is also consistent. At the same time, this device significantly improves the production efficiency of scalding and hair removal, reduces manual intervention, and reduces labor intensity.
[0027] In one possible embodiment, the pushing mechanism 3 includes a pushing shaft and two pushing components; the pushing shaft includes a first pushing shaft 341 and a second pushing shaft 342, which are respectively connected to the support frame 5 via sprocket bearings; the first pushing shaft 341 is connected to the first sprockets 31 of the two pushing components at both ends; the second pushing shaft 342 is connected to the second sprockets 32 of the two pushing components at both ends; the pushing mechanism 3 also includes a transmission component; the driving device drives the first pushing shaft 341 to rotate via the transmission component, thereby driving the first sprockets 31 at both ends of the first pushing shaft 341 to rotate, thus enabling the two pushing components to move synchronously in a cyclic manner. In this embodiment, a pushing frame 2 is connected to the pushing chains 33 of the two pushing components respectively, so that the force on the pushing frame 2 is more balanced during the movement. The driving device includes a motor and a reducer; the reducer 52 includes an input shaft and a first output shaft; the motor 51 is connected to the input shaft; the first output shaft is connected to the first pushing shaft 341 via the transmission component.
[0028] Optionally, the transmission assembly includes a driving wheel 38, a driven wheel 35, and a drive chain; the driving wheel 38 is mounted on the first output shaft; the driven wheel 35 is mounted on the first push shaft 341; the driving wheel 38 and the driven wheel 35 are sprockets driven by a drive chain. Optionally, the transmission assembly includes a driving wheel 38 and a driven wheel 35, both of which are gears that mesh with each other for transmission. Optionally, the driving wheel 38 and the driven wheel 35 are pulleys driven by a belt or synchronous belt.
[0029] Preferably, the transmission assembly further includes an adjustment component; the adjustment component includes an adjustment seat 361, on which a tensioning wheel 362 is provided; the adjustment seat 361 is also provided with two fixing grooves 363; the fixing grooves 363 are strip-shaped; the support frame 5 is also provided with mounting holes corresponding to the fixing grooves 363; the mounting holes and fixing grooves 363 are connected by mounting bolts; the tensioning wheel 362 cooperates with the drive chain. The strip-shaped fixing grooves 363 can adjust the position of the seat 361 on the support frame 5, change the positional relationship between the tensioning wheel 362 and the drive chain, thereby making the drive chain in a tensioned or slack state, which is convenient for replacement.
[0030] In one possible embodiment, both the first sprocket 31 and the second sprocket 32 are connected to the support frame 5 via a tensioning assembly 37. The tensioning assembly 37 includes an upper slide rail 371, a lower slide rail 372, a slider seat 374, and an adjusting screw 373. The upper slide rail 371 and the lower slide rail 372 are fixedly connected to the support frame 5. The upper slide rail 371 and the lower slide rail 372 are provided with raised slide tracks opposite each other. The slider seat 374 is provided with a concave groove that mates with the slide track. The outer ring of the sprocket bearing is connected to the slider. The inner ring of the sprocket bearing is connected to the push shaft. The support frame 5 is provided with a threaded hole. The adjusting screw 373 mates with the threaded hole. The top of the adjusting screw 373 abuts against the slider seat 374. In use, the slider seat 374 is placed between the upper slide rail 371 and the lower slide rail 372, with the slide track and the groove engaging. The adjusting screw 373 is located inside the push chain 33. When adjusting the adjusting screw 373, its top abuts against the slider seat 374, thus fixing the position of the slider seat 374 in conjunction with the push chain 33. During maintenance, adjusting the adjusting screw 373 away from the slider seat 374 allows the push chain 33 to change from a tensioned state to a slack state, facilitating replacement of the push chain 33. Proper tension adjustment can reduce wear between the chain and sprocket, extend the service life of the equipment, and reduce the failure rate. Preferably, the tensioning assembly 37 also includes a positioning plate 375, which connects the upper slide rail 371 and the lower slide rail 372. The positioning plate 375 has a positioning hole; the adjusting screw 373 passes through the positioning hole and abuts against the slider seat 374. The positioning hole can fix the force direction of the adjusting screw 373, better securing the slider seat 374.
[0031] In one possible embodiment, the pusher frame 2 includes a frame surface and a mounting rod 23; the frame surface is connected to the mounting rod 23; the pusher chain 33 includes multiple mounting links; each mounting link includes a mounting side plate; the mounting rod 23 is connected to the mounting side plate 331. The mounting rod 23 is mounted on the mounting side plate by welding or screws.
[0032] Furthermore, the frame includes a frame 21 and multiple connecting rods 22 disposed within the frame 21; the frame 21 is connected to the mounting rods 23; the mounting rods 23 are connected to the push chain 33. The design of the frame 21 and the connecting rods 22 reduces the resistance of the pusher 2 moving in hot water.
[0033] Furthermore, the pusher frame 2 is also equipped with a buffer 24; the buffer 24 is U-shaped, and its bottom is connected to the frame surface. Optionally, the pusher frame 2 is also equipped with a buffer 24; the buffer 24 includes a connecting part 242; the connecting part 242 is connected to two support legs 241 on both sides, forming a U-shaped structure; the bottoms of the support legs 241 are close to each other; the bottoms of the support legs 241 are connected to the frame 21. During the process of pushing the pigs in the scalding tank 1, the buffer 24 can play a buffering role, reducing the force between the pusher frame 2 and the pusher chain 33, and avoiding damage to the pusher frame 2.
[0034] In one possible embodiment, a rocking mechanism 4 is further included; the rocking mechanism 4 includes a front roller 41, a rear roller 42, and a rocking assembly; both ends of the front roller 41 and the rear roller 42 are provided with rollers 43; the rollers 43 are used to move on the hot water tank 1; the front roller 41 and the rear roller 42 are mounted on the support frame 5; the rocking assembly includes a rocker arm 44, a rocker connecting rod 45, and a connecting rod fixing seat 46; one end of the rocker arm 44 is connected to a driving device, and the driving device drives the rocker arm 44 to rotate; the other end of the rocker arm 44 is hinged to the rocker connecting rod 45; both ends of the rocker connecting rod 45 are respectively hinged to the rocker arm 44 and the connecting rod fixing seat 46; a crossbeam 47 is provided on the hot water tank 1; the connecting rod fixing seat 46 is mounted on the crossbeam 47; the driving device is mounted on the support frame 5. The driving device drives the rocker arm 44 to perform circular motion, causing the support frame 5 to reciprocate above the hot water tank 1. As the pigs move towards the outlet, they swing back and forth between the two pushers 2, creating flow between the water and the pigs, which allows for better scalding of the pig hair. At the same time, the buffer 24, in conjunction with the pigs, allows them to roll around in the scalding tank 1 to a certain extent, which also makes the scalding more even.
[0035] Preferably, the hot water tank 1 is provided with a roller 43 groove; the roller 43 is disposed in the roller 43 groove. This solution avoids derailment during swaying and increases safety.
[0036] Optionally, the reducer includes a second output shaft; the second output shaft is connected to the swing arm 44. The reducer base drives two pushing components and a swinging component to move simultaneously via a motor, which can reduce the complexity of the equipment and save energy.
[0037] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.
Claims
1. A device for scalding pig hair, characterized in that: The device includes a hot water bath, on which a pushing mechanism is provided; the pushing mechanism includes a support frame, a pushing component, and a driving device. The support frame is connected to the hot water tank; the pushing assembly includes a sprocket and a pushing chain; the sprocket includes a first sprocket and a second sprocket; The first sprocket and the second sprocket are connected to the support frame via sprocket bearings; the first sprocket and the second sprocket are connected via a push chain; the drive device is used to drive the first sprocket to rotate; multiple push frames are provided on the push chain; the push frames are used to push the pigs to move in the scalding tank; The pushing mechanism includes a pushing shaft and two pushing components; the pushing shaft includes a first pushing shaft and a second pushing shaft, which are respectively connected to a support frame via sprocket bearings; the first pushing shaft is connected to the first sprockets of the two pushing components at both ends; the second pushing shaft is connected to the second sprockets of the two pushing components at both ends. The pushing mechanism also includes a transmission component; the driving device drives the first pushing shaft to rotate through the transmission component, thereby driving the first sprockets at both ends of the first pushing shaft to rotate. Both the first and second sprockets are connected to the support frame via a tensioning assembly. The tensioning assembly includes an upper slide rail, a lower slide rail, a slider seat, and an adjusting screw. The upper and lower slide rails are fixedly connected to the support frame. The upper and lower slide rails are provided with raised slide tracks opposite each other. The slider seat is provided with a concave slide groove that mates with the slide track. The outer ring of the sprocket bearing is connected to the slider. The inner ring of the sprocket bearing is connected to the push shaft. The support frame is provided with a threaded hole. The adjusting screw mates with the threaded hole. The top of the adjusting screw abuts against the slider seat.
2. The scalding device for pig hair according to claim 1, characterized in that: The pusher includes a frame and a mounting rod; the frame is connected to the mounting rod; the pusher chain includes multiple mounting links; each mounting link includes a mounting side plate; the mounting rod is connected to the mounting side plate.
3. The scalding device for pig hair according to claim 2, characterized in that: The pusher is also equipped with a buffer; the buffer is U-shaped and its bottom is connected to the frame surface.
4. The scalding device for pig hair according to claim 3, characterized in that: It also includes a rocking mechanism; the rocking mechanism includes a front roller, a rear roller and a rocking assembly; both ends of the front roller and the rear roller are provided with rollers; the rollers are used to move on the hot water tank; the front roller and the rear roller are mounted on a support frame; The swing assembly includes a swing arm, a swing linkage, and a linkage fixing seat; one end of the swing arm is connected to a drive device, which drives the swing arm to rotate; the other end of the swing arm is hinged to the swing linkage; both ends of the swing linkage are hinged to the swing arm and the linkage fixing seat respectively; a crossbeam is provided on the hot water tank; the linkage fixing seat is provided on the crossbeam; the drive device is provided on the support frame.
5. The scalding device for pig hair according to claim 4, characterized in that: The hot water tank is provided with roller grooves; the rollers are set in the roller grooves.
6. The scalding device for pig hair according to claim 5, characterized in that: The drive device includes a motor and a reducer; the motor is connected to the reducer; the reducer includes a second output shaft; the second output shaft is connected to the swing arm.