A meatball forming machine

Abstract

The utility model discloses a kind of meatball forming machines, including cutter assembly and driving gear, driving gear is located at the rear of cutter assembly, cutter assembly is equipped with left blade and right blade, left blade and right blade are respectively left and right slidingly arranged;It also includes scissor fork mechanism, scissor fork mechanism includes left shear arm, right shear arm, left and right shear arm hinged shaft and connecting rod, left shear arm and right shear arm are respectively swing arrangement, the rear end of left shear arm and the rear end of right shear arm are slidably hinged by left and right shear arm hinged shaft, the front end of left shear arm is slidably hinged left blade, the front end of right shear arm is slidably hinged right blade, the rear end of connecting rod eccentrically hinged driving gear, the front end of connecting rod is connected left and right shear arm hinged shaft.The utility model is driven by connecting rod, and spring is dispensed with, so as to avoid the situation that spring plastic deformation increases or even spring breaks, so as to improve the durability of meatball forming machine.

Description

Technical Field

[0001] This utility model relates to the field of meatball making equipment, specifically to a meatball forming machine. Background Technology

[0002] Currently, meatball forming machines are used to extrude and cut meat simultaneously. For example, the Chinese invention patent application CN113632816A, entitled "A Meatball Forming Machine," describes a machine with two cutting blades. Each blade has a meatball passage hole. When the meatball passage holes on the upper and lower blades are aligned, they are also aligned with the lower outlet of the forming sleeve. As the front ends of the first and second forks move away from each other, the meatball passage holes on the upper and lower blades are horizontally offset, causing the edge of the meatball passage hole to cut the meat. A cam drives the first and second forks to swing back and forth, and a tension spring pulls the forks to move the cutting blade to its minimum distance. However, the tension spring is prone to fatigue due to prolonged stretching and contraction, leading to increased plastic deformation and insufficient cutting blade movement. In some cases, the tension spring may even break due to fatigue, ultimately resulting in poor durability of the meatball forming machine. Therefore, improvements are necessary. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a meatball forming machine that improves the durability of the meatball forming machine.

[0004] The objective of this utility model is achieved through the following technical solution.

[0005] The meatball forming machine disclosed in this utility model includes a cutting blade assembly and a drive gear. The drive gear is located behind the cutting blade assembly. The cutting blade assembly has a left blade and a right blade, which are slidably arranged left and right respectively. It also includes a scissor mechanism, which includes a left scissor arm, a right scissor arm, a hinge shaft connecting the left and right scissor arms, and a connecting rod. The left and right scissor arms are oscillatingly arranged. The rear ends of the left and right scissor arms are slidably hinged to each other via the hinge shaft. The front end of the left scissor arm is slidably hinged to the left blade, and the front end of the right scissor arm is slidably hinged to the right blade. The rear end of the connecting rod is eccentrically hinged to the drive gear, and the front end of the connecting rod is connected to the hinge shaft.

[0006] Preferably, the rear ends of the left scissor arm and the rear ends of the right scissor arm are respectively formed with sliding grooves, and the hinge shafts of the left and right scissor arms are adapted to pass through the sliding grooves.

[0007] Preferably, the left and right scissor arm hinge shafts pass through the front end of the connecting rod, and a hinge shaft bushing is provided between the left and right scissor arm hinge shafts and the connecting rod.

[0008] Preferably, the drive gear is provided with an eccentric shaft, which passes through the rear end of the connecting rod.

[0009] Preferably, an eccentric shaft bushing is provided between the eccentric shaft and the connecting rod.

[0010] Preferably, the front ends of the left scissor arm and the front ends of the right scissor arm are respectively formed with fork slots, a left protrusion is formed on the left end of the left blade, and a right protrusion is formed on the right end of the right blade. The left protrusion is adapted to be disposed in the fork slot of the left scissor arm, and the right protrusion is adapted to be disposed in the fork slot of the right scissor arm.

[0011] Preferably, the meatball forming machine of this utility model further includes a blade holder, a guide slide is formed in the blade holder, the left blade and the right blade are adapted to be disposed in the guide slide, the left blade and the right blade are stacked one on top of the other, a guide elongated hole is formed on the blade holder, and the left protrusion and the right protrusion pass through the corresponding guide elongated hole respectively.

[0012] Compared with the prior art, the advantages of this invention are as follows: By setting a scissor mechanism including a left scissor arm, a right scissor arm, a hinge shaft connecting the left and right scissor arms, and a connecting rod, the left and right scissor arms are oscillatingly set. The rear ends of the left and right scissor arms are slidably hinged to each other through the hinge shaft. The front end of the left scissor arm is slidably hinged to the left blade, and the front end of the right scissor arm is slidably hinged to the right blade. The rear end of the connecting rod is eccentrically hinged to the drive gear, and the front end of the connecting rod is connected to the hinge shaft connecting the left and right scissor arms. This invention achieves the drive connection through the connecting rod, eliminating the need for a spring, thereby avoiding the situation of increased plastic deformation of the spring or even spring breakage, thus improving the durability of the meatball forming machine. Attached Figure Description

[0013] Figure 1 This is a partial front view of the meatball forming machine of this utility model.

[0014] Figure 2 This is a frontal cross-sectional view of the combination of the tool holder, left blade, and right blade of this utility model.

[0015] Figure 3 This is a top view of the tool holder of this utility model.

[0016] Figure 4 This is a top view of the scissor mechanism, cutter assembly, and drive gear combination of this utility model.

[0017] Figure 5 This is a partial structural diagram of the meatball forming machine of this utility model from the left side.

[0018] Figure 6 for Figure 5 A partial structural diagram.

[0019] Labeling: 1. Hopper; 2. Conveying auger; 3. Forming sleeve; 30. Gear sleeve; 4. Knife holder; 401. Discharge hole; 402. Guide slide; 403. Guide elongated hole; 5. Cutting assembly; 51. Left blade; 511. Left knife hole; 512. Left protrusion; 52. Right blade; 521. Right knife hole; 522. Right protrusion; 6. Scissor mechanism; 61. Left scissor arm; 62. Right scissor arm; 601. Scissor arm pivot point; 602. Slide groove; 603. Left and right scissor arm hinge shaft; 63. Hinge shaft bushing; 631. Axial limit nut; 632. Connecting rod; 64. Eccentric shaft bushing; 65. Drive gear; 7. Eccentric shaft; 71. Motor assembly; 8. Detailed Implementation

[0020] The present invention will now be further described with reference to the accompanying drawings.

[0021] The meatball forming machine of this utility model, such as Figure 1 , Figure 4 and Figure 5 As shown, the device includes a cutter assembly 5 and a drive gear 7. The drive gear 7 is located behind the cutter assembly 5. The cutter assembly 5 has a left blade 51 and a right blade 52, which are slidably arranged left and right, respectively. Figure 2 As shown, a left cutting hole 511 is formed at the right end of the left blade 51, and a right cutting hole 521 is formed at the left end of the right blade 52. A discharge hole 401 is formed on the tool holder 4. When the left cutting hole 511 and the right cutting hole 521 are aligned, the discharge hole 401 is aligned with the left cutting hole 511. Figure 1 and Figure 4 As shown, the meatball forming machine of this utility model also includes a scissor mechanism 6. The scissor mechanism 6 includes a left scissor arm 61, a right scissor arm 62, a left and right scissor arm hinge shaft 63, and a connecting rod 64. The left scissor arm 61 and the right scissor arm 62 are respectively oscillating. Specifically, the left scissor arm 61 and the right scissor arm 62 are respectively provided with a scissor arm swing point 602. The scissor arm swing point 602 is connected to the frame of the meatball forming machine. For example, the frame is provided with a hinge column, and a hinge circular hole is formed at the scissor arm swing point 602. The hinge column is adapted to pass through the hinge circular hole, so that the left scissor arm 61 and the right scissor arm 62 can swing freely. The right scissor arm 62 can swing horizontally around the scissor arm pivot point 602; the rear end of the left scissor arm 61 and the rear end of the right scissor arm 62 are slidably hinged via left and right scissor arm hinge axes 63. In other words, the left scissor arm 61 can swing around the left and right scissor arm hinge axes 63, and the left and right scissor arm hinge axes 63 can move horizontally relative to the left scissor arm 61; the right scissor arm 62 can swing around the left and right scissor arm hinge axes 63, and the left and right scissor arm hinge axes 63 can move horizontally relative to the right scissor arm 62; and the right scissor arm 62 can swing horizontally relative to the left scissor arm 61. Figure 4As shown, the front end of the left scissor arm 61 is slidably hinged to the left blade 51, meaning that the left scissor arm 61 and the left blade 51 can swing and move relative to each other. The front end of the right scissor arm 62 is slidably hinged to the right blade 52, meaning that the right scissor arm 62 can swing and move relative to the right blade 52. The rear end of the connecting rod 64 is eccentrically hinged to the drive gear 7, meaning that the hinge axis of the rear end of the connecting rod 64 and the drive gear 7 is eccentrically set relative to the rotation axis of the drive gear 7. The front end of the connecting rod 64 is connected to the left and right scissor arm hinge shafts 63. Specifically, the left and right scissor arm hinge shafts 63 can be fixedly connected to the connecting rod 64, or they can be rotatably connected to the front end of the connecting rod 64.

[0022] The working principle of the meatball forming machine of this utility model is briefly explained below: Figure 1 , Figure 2 and Figure 5 As shown, a conveying auger 2 is installed inside the hopper 1, and the conveying auger 2 is mounted on the main shaft. A forming sleeve 3 is correspondingly installed at the lower end of the hopper 1. A toothed sleeve 30 is fitted on the outer side of the forming sleeve 3. The toothed sleeve 30 and the forming sleeve 3 can be connected by a key. The lower end of the forming sleeve 3 is coaxially connected to the discharge hole 401 on the tool holder 4. Figure 5 As shown, the motor assembly 8 drives the conveying auger 2 and the drive gear 7 to rotate via a transmission belt. The drive gear 7 is externally engaged with the gear sleeve 30, so the forming sleeve 3 can rotate. The conveying auger 2 pushes the meat in the hopper 1 downwards, so that the meat passes through the forming sleeve 3, passes through the discharge hole 401, and is discharged downwards. During this process, the meat passes through the left knife hole 511 and the right knife hole 521. Figures 4 to 6 As shown, since the rear end of the connecting rod 64 is eccentrically hinged to the drive gear 7, the connecting rod 64 swings back and forth during the rotation of the drive gear 7, causing the left and right scissor arm hinge shafts 63 to move back and forth. Because the rear ends of the left scissor arm 61 and the right scissor arm 62 are slidably hinged through the left and right scissor arm hinge shafts 63, the left and right scissor arm hinge shafts 63 push and pull the left scissor arm 61 and the right scissor arm 62 back and forth, causing the left and right scissor arms 61 and 62 to swing back and forth. Specifically, when the left and right scissor arm hinge shafts 63 move backward... When moving, the front end of the left scissor arm 61 retracts and swings relative to the front end of the right scissor arm 62. When the hinge shaft 63 of the left and right scissor arms moves forward, the front end of the left scissor arm 61 opens and swings relative to the front end of the right scissor arm 62, causing the left cutter hole 511 and the right cutter hole 521 to separate and misalign. Thus, the edges of the left cutter hole 511 and the right cutter hole 521 cut the meat passing through the discharge hole 401. As the left cutter hole 511 and the right cutter hole 521 move back and forth, the meat is cut out one by one. As can be seen from the above, by setting the scissor mechanism 6 of this utility model and realizing the drive connection through the connecting rod, it is not necessary to set a spring to drive the left scissor arm 61 and the right scissor arm 62 to swing relative to each other, thereby avoiding the growth of spring plastic deformation or even spring breakage, which helps to improve the durability of the meatball forming machine.

[0023] Furthermore, such as Figure 4 As shown, the rear ends of the left scissor arm 61 and the right scissor arm 62 are respectively provided with sliding grooves 603. The sliding grooves 603 are through groove structures. The left and right scissor arm hinge shafts 63 are adapted to pass through the sliding grooves 603. That is to say, the left and right scissor arm hinge shafts 63 pass through the left scissor arm 61 and the right scissor arm 62 at the same time. Therefore, during the back-and-forth movement of the left and right scissor arm hinge shafts 63, the left and right scissor arm hinge shafts 63 can slide relative to each other in the sliding grooves 603. The structure of the sliding grooves 603 guiding the left and right scissor arm hinge shafts 63 is simple and easy to manufacture.

[0024] Furthermore, such as Figure 6 As shown, the left and right scissor arm hinge shafts 63 pass through the front end of the connecting rod 64. A hinge shaft bushing 631 is provided between the left and right scissor arm hinge shafts 63 and the connecting rod 64. That is to say, the hinge shaft bushing 631 is fitted onto the left and right scissor arm hinge shafts 63. The hinge shaft bushing 631 can be a copper bushing. Thus, the left and right scissor arm hinge shafts 63 can rotate relative to the connecting rod 64. The gap between the hinge shaft bushing 631 and the connecting rod 64 helps to compensate for the form and position errors of the parts of the scissor mechanism 6, which is beneficial to the flexible movement of the scissor mechanism 6. The hinge shaft bushing 631 can reduce the resistance to movement between the left and right scissor arm hinge shafts 63 and the connecting rod 64. Figure 6 As shown, the upper end of the left and right scissor arm hinge shaft 63 is provided with a head, and the lower end of the left and right scissor arm hinge shaft 63 is screwed with two axial limiting nuts 632.

[0025] Furthermore, such as Figure 5 As shown, the drive gear 7 is provided with an eccentric shaft 71, which is fixedly connected to the drive gear 7. Specifically, the upper end of the eccentric shaft 71 can be fitted and welded to the drive gear 7, and the lower end of the eccentric shaft 71 passes through the rear end of the connecting rod 64. Thus, the structure simply realizes the hinge connection between the connecting rod 64 and the drive gear 7.

[0026] Furthermore, such as Figure 6 As shown, an eccentric shaft bushing 65 is provided between the eccentric shaft 71 and the connecting rod 64. That is to say, the eccentric shaft bushing 65 is adapted to fit on the eccentric shaft 71, thereby reducing the relative movement resistance between the eccentric shaft 71 and the connecting rod 64.

[0027] Furthermore, such as Figure 4 As shown, the front ends of the left scissor arm 61 and the right scissor arm 62 are respectively formed with fork slots 601, such as... Figure 2 As shown, a left protrusion 511 is formed on the left end of the left blade 51, and a right protrusion 522 is formed on the right end of the right blade 52, as... Figure 4As shown, the left protruding post 511 is adapted to be disposed in the fork slot 601 of the left scissor arm 61, and the right protruding post 522 is adapted to be disposed in the fork slot 601 of the right scissor arm 62. The above-mentioned structure simply realizes the sliding hinge between the left scissor arm 61 and the left blade 51, and the sliding hinge between the right scissor arm 62 and the right blade 52. When the left scissor arm 61 and the right scissor arm 62 open or close and swing, the fork slot 601 correspondingly moves the left protruding post 511 and the right protruding post 522.

[0028] Furthermore, such as Figure 1 and Figure 2 As shown, the meatball forming machine of this utility model also includes a blade holder 4, in which a guide slide 402 is formed. The guide slide 402 can pass through the blade holder 4 from left to right. The blade holder 4 may include a base plate and a cover. The base plate and the cover are connected by screws. The base plate and the cover form the guide slide 402. The left blade 51 and the right blade 52 are adapted to be disposed in the guide slide 402, so the left blade 51 and the right blade 52 can slide linearly left and right in the guide slide 402 respectively. The left blade 51 and the right blade 52 are stacked vertically. Specifically, the left blade 51 is attached to the upper side of the right blade 52. Figure 3 As shown, a guide hole 403 is formed on the tool holder 4, and the guide hole 403 extends in the left-right direction, as shown. Figure 2 As shown, the left protrusion 511 and the right protrusion 522 pass through the corresponding guide elongated hole 403, so the guide elongated hole 403 can guide the left blade 51 and the right blade 52 to move linearly left and right, which is beneficial to the stability of the cutting action of the left blade 51 and the right blade 52.

Claims

1. A meatball forming machine, comprising a cutting blade assembly (5) and a drive gear (7), wherein the drive gear (7) is disposed behind the cutting blade assembly (5), the cutting blade assembly (5) is provided with a left blade (51) and a right blade (52), the left blade (51) and the right blade (52) being slidably disposed to the left and right respectively, characterized in that: It also includes a scissor mechanism (6), which includes a left scissor arm (61), a right scissor arm (62), a left and right scissor arm hinge shaft (63), and a connecting rod (64). The left scissor arm (61) and the right scissor arm (62) are respectively oscillating. The rear end of the left scissor arm (61) and the rear end of the right scissor arm (62) are slidably hinged through the left and right scissor arm hinge shaft (63). The front end of the left scissor arm (61) is slidably hinged to the left blade (51), and the front end of the right scissor arm (62) is slidably hinged to the right blade (52). The rear end of the connecting rod (64) is eccentrically hinged to the drive gear (7), and the front end of the connecting rod (64) is connected to the left and right scissor arm hinge shaft (63).

2. The meatball forming machine according to claim 1, characterized in that: The rear ends of the left scissor arm (61) and the rear ends of the right scissor arm (62) are respectively provided with grooves (603), and the left and right scissor arm hinge shafts (63) are adapted to pass through the grooves (603).

3. The meatball forming machine according to claim 2, characterized in that: The left and right scissor arm hinge shafts (63) pass through the front end of the connecting rod (64), and a hinge shaft bushing (631) is provided between the left and right scissor arm hinge shafts (63) and the connecting rod (64).

4. The meatball forming machine according to any one of claims 1 to 3, characterized in that: The drive gear (7) is provided with an eccentric shaft (71), which passes through the rear end of the connecting rod (64).

5. The meatball forming machine according to claim 4, characterized in that: An eccentric shaft bushing (65) is provided between the eccentric shaft (71) and the connecting rod (64).

6. The meatball forming machine according to any one of claims 1 to 3, characterized in that: The front ends of the left scissor arm (61) and the front ends of the right scissor arm (62) are respectively formed with fork slots (601). A left protrusion (511) is formed on the left end of the left blade (51), and a right protrusion (522) is formed on the right end of the right blade (52). The left protrusion (511) is adapted to be disposed in the fork slot (601) of the left scissor arm (61), and the right protrusion (522) is adapted to be disposed in the fork slot (601) of the right scissor arm (62).

7. The meatball forming machine according to claim 6, characterized in that: It also includes a tool holder (4), in which a guide slide (402) is formed. The left blade (51) and the right blade (52) are adapted to be disposed in the guide slide (402). The left blade (51) and the right blade (52) are stacked vertically. A guide elongated hole (403) is formed on the tool holder (4). The left protrusion (511) and the right protrusion (522) pass through the corresponding guide elongated hole (403).

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