Pig carcass edge-opening single-tool structure
By combining a single-blade double-edged splitter assembly with a crank mechanism in the pig carcass splitting equipment, the problems of high labor intensity, low efficiency, and uneven cut surfaces in the existing technology are solved, achieving a more efficient and aesthetically pleasing pig carcass splitting effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI ZHAORUI MECHANICAL EQUIP MFG CO LTD
- Filing Date
- 2025-07-07
- Publication Date
- 2026-05-19
AI Technical Summary
Existing pig carcass splitting technology suffers from high labor intensity, low efficiency, uneven cut surfaces, and poor aesthetics. In particular, double-blade splitting equipment produces uneven cut surfaces in actual use, affecting product quality.
The double-edged splitter assembly with a single-blade structure is mounted on a crank mechanism. The crank mechanism is driven synchronously by a motor to move up and down. Combined with a guide plate, it guides and prevents the pig from jumping, thus achieving a flat cut.
It improves the flatness and aesthetics of pig carcass cutting, extends the wear resistance and service life of the cutting tools, and increases production efficiency.
Smart Images
Figure CN224250580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pig splitting technology, and in particular to a single-blade structure for splitting pig carcasses. Background Technology
[0002] In the field of pig slaughtering and processing, the splitting (halving) of pig carcasses is a key step in the segmentation process, directly affecting production efficiency and product quality. Currently, the carcass splitting technology commonly used in the industry mainly includes the following two types: manual operation and mechanical splitting equipment. The manual operation method relies on operators holding electric saws or pneumatic saws to manually split the pig along the midline of the spine. This method has significant drawbacks, including high labor intensity, low work efficiency, and poor stability due to manual operation, which can easily lead to problems such as splitting deviation, bone fragment residue, and uneven cross-section. Mechanical splitting equipment is the current mainstream equipment, which mostly adopts hydraulically driven circular saws or band saw structures.
[0003] The applicant filed a utility model patent application on December 3, 2024, with application number 202411755597.0 and publication number CN119244707A. The utility model is entitled "A Crank Mechanism, a Pig Splitting Machine Head, and a Pig Splitting Machine." This published document describes a double-blade structure currently used for splitting pig carcasses, as shown in the following description. Figure 4 As shown, each of the two splitting knives in the double-blade structure is a single-edged blade. The two splitting knives are combined to achieve a double-edged blade, which is used to split the pig carcass in half alternately, one above the other. However, in actual use, the double-blade splitting results in an uneven cut surface on the pig carcass, which leads to a poor appearance of the cut surface. Utility Model Content
[0004] The purpose of this invention is to overcome the defects of the prior art and provide a single-blade structure for opening the edge of a pig carcass, so as to solve the problems existing in the background art.
[0005] A single-blade structure for splitting the edge of a pig carcass includes:
[0006] Crank mechanism;
[0007] A double-edged splitter assembly is fixedly installed on one side of the front end of a crank mechanism. The double-edged splitter assembly includes a double-edged splitter and a guide plate. The double-edged splitter is fixed to the crank mechanism, and the guide plate is a pair and symmetrically fixed on both sides of the double-edged splitter.
[0008] Preferably, the crank mechanism includes cranks, swivel seats, and a shaft. The cranks are arranged in pairs, one above the other, and are rotatably connected to the rear of the cranks in a one-to-one correspondence. The shaft bearings are connected between the swivel seats. The double-edged splitter is fixed to the front end of one of the cranks.
[0009] Preferably, a balance plate is fixed to the front end of another crank, the balance plate is attached to one side of the double-edged splitting blade, and the double-edged splitting blade and the balance plate move alternately through the crank mechanism.
[0010] Preferably, the lower end face of the guide plate is an inclined surface, and the inclined surface is inclined toward the cutting surface of the double-edged splitter.
[0011] Beneficial effects: The double-edged splitting blade, acting as a single blade, is mounted on a crank mechanism. A motor drives a synchronous belt to transmit power to the crank mechanism, which then converts this into a reciprocating motion, causing the double-edged splitting blade to cut up and down. Two guide plates are installed on both sides of the double-edged splitting blade for guidance. When the machine head splits the pig in half, the guide plates move downwards simultaneously, pressing into the split pig trough to prevent the pig from jumping. Because the double-edged splitting blade is double-edged, it has better wear resistance and a longer service life, resulting in a smoother and more aesthetically pleasing appearance after splitting. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0013] Figure 2 This is a schematic diagram of the right side of the present invention.
[0014] Figure 3 This is a schematic diagram of the overall front view of this utility model;
[0015] Figure 4 This is a schematic diagram of existing technology.
[0016] In the diagram: 1-crank mechanism, 11-crank, 12-rotating seat, 13-shaft, 2-double-edged splitter assembly, 21-double-edged splitter, 22-guide plate, 3-balance plate. Detailed Implementation
[0017] Please see Figures 1-3 A single-blade structure for splitting the edge of a pig carcass, comprising:
[0018] The crank mechanism 1 includes cranks 11, rotating seats 12, and rotating shafts 13. There are a pair of cranks 11 arranged side by side with one above the other. There are a pair of rotating seats 12 rotatably connected to the rear of the cranks 11. The rotating shafts 13 are connected between the rotating seats 12 by bearings. The crank mechanism 1 is used to connect a synchronization mechanism, which is connected to a motor. In this way, the motor drives the synchronization mechanism, and the synchronization mechanism drives the two cranks 11 to move alternately.
[0019] A double-edged splitter assembly 2 is fixedly mounted on one side of the front end of a crank mechanism 1. The assembly includes a double-edged splitter 21 and guide plates 22. The double-edged splitter 21 is fixed to the crank mechanism 1 and to the front end of one of the cranks 11. A pair of guide plates 22 are symmetrically fixed to the two sides of the double-edged splitter 21. The lower end face of the guide plates 22 is inclined, and this inclined surface slopes towards the cutting edge of the double-edged splitter 21. Therefore, when one of the cranks 11 drives the tip of the double-edged splitting blade 21 to align with the midline of the top of the pig's spine, two guide plates 22 are installed on both sides of the double-edged splitting blade 21 for guiding purposes. When the machine head splits the pig in half, the guide plates 22 move downwards at the same time and press into the split pig trough to prevent the pig from jumping. Since the double-edged splitting blade 21, which is a single blade, has double-sided blades, it has better wear resistance and service life. The split pig has a smoother and more beautiful appearance.
[0020] Another crank 11 has a balance plate 3 fixed to its front end. The balance plate 3 is attached to one side of the double-edged splitting blade 21. The double-edged splitting blade 21 and the balance plate 3 move alternately through the crank mechanism 1. When the other crank 11 moves, it can drive the balance plate 3 to move synchronously with the double-edged splitting blade 21. In this way, the balance plate 3 can maintain the dynamic balance of the double-edged splitting blade 21 in the reverse stroke.
[0021] Specifically, the following steps are included:
[0022] S1. The motor drives the synchronous mechanism to start the crank mechanism 1, so that the double-edged splitting blade 21 fixed on one side of the crank 11 makes vertical reciprocating motion, while the balance plate 3 fixed on the other side of the crank 11 moves synchronously in opposite phase. The momentum of the double-edged splitting blade 21 and the balance plate 3 cancel each other out in real time, suppressing the lateral vibration during the splitting process and ensuring the balance of the double-edged splitting blade 21 as a single blade.
[0023] S2. Align the tip of the double-edged splitting knife 21 in motion with the midline of the top of the spine of the pig carcass, and make the inclined surfaces of the guide plates 22 symmetrically arranged on both sides of the double-edged splitting knife 21 press against the back tissue of the carcass. Simultaneously, the symmetrical double-edged blades of the double-edged splitting knife 21 cut into both sides of the spine, while the inclined surfaces of the guide plates 22 on both sides press against the back tissue of the carcass, thus pre-expanding the soft tissue channel before the knife falls.
[0024] S3. The double-edged cleaver 21 is driven by the crank mechanism 1 to cleave downwards along the midline of the spine, while simultaneously performing:
[0025] S31. The double-edged splitting knife 21 simultaneously cuts the tissues on both sides of the spine. The left and right edges of the double-edged splitting knife 21 act on both sides of the midline of the spine at the same time, eliminating unilateral force deviation.
[0026] S32. The inclined surface of the guide plate 22 moves downward with the blade, expanding the split carcass tissue outward. The inclined surface of the guide plate 22 continues to press down on the split carcass tissue, forcing the tissue to slide outward along the inclined surface, forming a gradually expanding separation channel to prevent the tissue from springing back and clamping the blade.
[0027] S33. The balance plate 3 maintains the dynamic balance of the double-edged splitting blade 21 during the reverse stroke. The balance plate 3 absorbs the impact inertia of the blade body during the reverse stroke and maintains the stability of the double-edged splitting blade 21.
[0028] S4. When the double-edged splitting blade 21 splits to the end of the pelvic cavity of the carcass, the crank mechanism 1 lifts the blade and withdraws it from the carcass, so that the pig carcass is completely split into two halves along the midline of the spine. The carcass tissues that are continuously expanded by the guide plate 22 remain separated after the blade withdraws, thus achieving symmetrical skeletal dissection and complete splitting of the carcass.
[0029] In summary, the double-edged splitting blade 21, acting as a single blade, is mounted on the crank mechanism 1. A motor drives a synchronous belt to transmit power to the crank mechanism 1, which then converts this into a reciprocating motion, causing the double-edged splitting blade 21 to cut vertically. Two guide plates 22 are installed on both sides of the double-edged splitting blade 21 for guiding purposes. When the machine head splits the pig in half, the guide plates 22 move downwards simultaneously, pressing into the split pig trough to prevent the pig from jumping. Because the double-edged splitting blade 21 is double-edged, it offers better wear resistance and service life, resulting in a smoother and more aesthetically pleasing appearance after splitting.
Claims
1. A single-blade structure for opening the edge of a pig carcass, characterized in that, include: Crank mechanism (1); A double-edged splitter assembly (2) is fixedly installed on one side of the front end of a crank mechanism (1). The double-edged splitter assembly (2) includes a double-edged splitter (21) and a guide plate (22). The double-edged splitter (21) is fixed to the crank mechanism (1), and the guide plate (22) is a pair and symmetrically fixed on both sides of the double-edged splitter (21).
2. The single-blade structure for opening the edge of a pig carcass according to claim 1, characterized in that: The crank mechanism (1) includes a crank (11), a rotating seat (12) and a rotating shaft (13). There are a pair of cranks (11) arranged in a left-right configuration with one above the other. There are a pair of rotating seats (12) rotatably connected to the rear of the cranks (11) in a one-to-one correspondence. The rotating shaft (13) is connected between the rotating seats (12) by bearings. The double-edged splitter (21) is fixed to the front end of one of the cranks (11).
3. The single-blade structure for opening the edge of a pig carcass according to claim 2, characterized in that: Another crank (11) has a balance plate (3) fixed to its front end. The balance plate (3) is attached to one side of the double-edged splitter (21). The double-edged splitter (21) and the balance plate (3) move alternately through the crank mechanism (1).
4. The single-blade structure for opening the edge of a pig carcass according to claim 3, characterized in that: The lower end face of the guide plate (22) is inclined, and the inclined face is inclined toward the cutting surface of the double-edged splitter (21).