Automatic brick tea trimming device

Abstract

The invention discloses an automatic brick tea trimming device which comprises a chain scraper conveyor, a short edge trimming mechanism and a long edge trimming mechanism, and a brick tea auxiliary steering mechanism is further arranged between the short edge trimming mechanism and the long edge trimming mechanism. The brick tea auxiliary steering mechanism is composed of an arc-shaped guide plate and a ball bearing; the arc-shaped guide plate is fixedly installed on the chain scraper conveyor, and the ball bearing is embedded in the inner side of the arc-shaped guide plate. And the arc-shaped guide plate and a guide plate on the other side of the chain scraper conveyor form a longitudinal brick tea conveying channel. Automatic steering from transverse conveying to longitudinal conveying of the brick tea is achieved, so that the brick tea rotates by 90 degrees, and meanwhile, the trimming mechanism is equally arranged on the same horizontal plane of the chain scraper conveyor to cut the transverse face and the longitudinal face of the brick tea respectively.

Description

Technical Field

[0001] The invention relates to a tea processing tool, in particular to an automatic edge trimming device for tea bricks. Background Art

[0002] Brick tea, also known as steamed and compressed tea, is tea leaves shaped like bricks. It is a representative type of compressed tea, made by steaming and pressing tea leaves, tea stems, and sometimes tea dust. When the tea bricks are cooled and removed from the mold, gaps between the template and the mold during the pressing process inevitably cause burrs to form on the four edges of the rectangular tea bricks. Traditionally, manual removal with scissors or kitchen knives is time-consuming, labor-intensive, and unhygienic. Therefore, there is an urgent need to solve the problem of mechanized tea brick trimming.

[0003] China's published patent application CN117774024A, the invention name of which is a brick tea brick surface beveling device, relates to tea processing equipment, which discloses a machine base, a conveyor belt is provided on the top of the machine base, and guide mechanisms with adjustable spacing are relatively provided on both sides of the front of the top surface of the machine base, and two cutting assemblies are relatively provided on both sides of the middle of the top surface of the machine base, the cutting assembly is provided with a vertical guide rail, a horizontal guide rail positioning block is provided at the bottom of the vertical guide rail, a vertical positioning slider is provided on the vertical guide rail, an L-shaped bracket is fixed on the vertical positioning slider, an electric motor is inverted on the horizontal plate of the L-shaped bracket, the tail of the motor is connected to the tension spring suspended on the upper suspension beam, the output shaft of the motor passes through the horizontal plate of the L-shaped bracket and a blade is horizontally provided, and two front and rear positioning wheels are provided under the left end portion of the horizontal plate of the L-shaped bracket through a positioning wheel screw, the spacing between the front and rear positioning wheels is greater than the diameter of the blade, and the bottom of the positioning wheel is horizontal with the blade.

[0004] The technical solution of this patent application is that a blade chuck 8 is provided on the output shaft of the motor 1, and a disc-shaped blade 9 is fixed to the blade chuck 8 by a blade shaft 10, and the fixed portion of the blade shaft end is above the plane of the bottom surface of the blade 9. In this way, when cutting the edges of tea bricks, only the longitudinal edges can be cut, and no transverse cutting is allowed.

[0005] China's published patent application CN111716808 A, invention name The present invention provides an automatic tea brick trimming device and method, including a brick storage box, a chain conveyor and a tea brick trimming device; the brick storage box is installed above the chain conveyor, and is a U-shaped structure, with openings running through the upper and lower sides and the right side, and a brick outlet opening opened on the left side along the vertical direction of the bottom surface; the inner bottom surface of the brick storage box is provided with a brick placing platform composed of two flat plates, and the flat plates are placed on both sides of the surrounding conveyor belt; the conveyor belt is provided with equidistant brick pushing plates, and the spacing between the brick pushing plates is greater than the side length of the tea bricks, and the tea brick trimming device is arranged on the conveyor belt, and the tea brick trimming device is located at one end in the direction of the brick outlet.

[0006] Although this patent application provides a transverse groove on the limiting piece 302 and a trimming knife 304 placed in the transverse groove, the trimming knife will also cut the surface of the tea brick and damage the tea brick. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to solve the technical problem of longitudinal and transverse trimming.

[0008] The technical solution of the present invention is: An automatic tea brick trimming device comprises a chain conveyor, a short side trimming mechanism and a long side trimming mechanism, and a tea brick auxiliary steering mechanism between the short side trimming mechanism and the long side trimming mechanism; The tea brick auxiliary steering mechanism consists of an arc-shaped guide plate and ball bearings; The arc-shaped guide plate is fixedly installed on the chain conveyor, and the ball bearing is embedded in the inner side of the arc-shaped guide plate; the arc-shaped guide plate and the guide plate on the other side of the chain conveyor form a longitudinal channel for conveying tea bricks; when the tea bricks are conveyed horizontally on the conveyor belt along the running direction, one side of the edge of the tea brick first contacts the outer side of the ball bearing, and the tea brick is passively rotated toward the other side of the edge. Under the joint action of the arc-shaped guide plate and the conveyor belt, the automatic steering from horizontal conveying to longitudinal conveying of the tea bricks is realized.

[0009] Furthermore, the chain conveyor transports the tea bricks horizontally and is installed tilted with the left side higher and the right side lower according to the order of trimming the tea bricks. The tea bricks are transported in an orderly manner under the action of their own weight and the friction of the conveyor belt.

[0010] Furthermore, the above-mentioned short side trimming mechanism is composed of two trimming mechanisms installed in parallel on the two side guide plates.

[0011] Furthermore, the long side trimming mechanism is composed of two trimming mechanisms installed in parallel and having the same structure; one is arranged on the guide plate of the longitudinal tea brick conveying channel, and the other is arranged on the arc guide plate.

[0012] Furthermore, the trimming mechanism is composed of a spherical roller, a trimming tool, a mounting bracket and a roller bearing; the trimming tool includes a trimming blade; the trimming blade and the lower surface of the spherical roller are on the same horizontal plane.

[0013] Beneficial effects of the present invention: Between the two trimming mechanisms, there is also a tea brick auxiliary steering mechanism. When the tea brick is transported horizontally on the conveyor belt along the width direction, the side of the tea brick with the longer edge first contacts the outer side of the ball bearing, and the tea brick is passively rotated toward the other side with the shorter edge. Under the action of the arc guide plate and the conveyor belt, the tea brick is automatically turned from horizontal transportation to vertical transportation, so that the tea brick is rotated 90 degrees. At the same time, the trimming mechanism is placed on the same level as the chain conveyor to cut the tea brick on the horizontal and vertical surfaces respectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the overall main structure of an automatic tea brick trimming device according to the present invention; Figure 2 yes Figure 1 A top view of Figure 3 Schematic diagram of the short side trimming mechanism of the automatic trimming device for tea bricks of the present invention; Among them, 1. Chain conveyor, 2. Tea bricks, 3. Ball rollers, 4. Roller bearings, 5. Trimming blades, 6. Drive motor, 7. Trimming mechanism bracket, 8. Tension spring, 9. Long side trimming mechanism, 10. Ball bearings, 11-Guide plate, 12-Arc guide plate; the direction of the arrow is the running direction of the tea bricks. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be further described below with reference to the accompanying drawings: See also Figure 1 and Figure 2 The present invention is an automatic trimming device for tea bricks, which mainly includes a chain conveyor 1, a trimming mechanism, and a tea brick auxiliary steering mechanism. The two sides of the chain conveyor 1 are guide plates 11.

[0016] The two sides of the front are guide plates 11 forming a transverse tea brick conveying channel for transversely conveying tea bricks.

[0017] Chain conveyor 1 adopts food-grade conveyor belt and is installed tilted with left higher and right lower according to the order of tea brick trimming. Under the action of its own weight and the friction of the conveyor belt, the tea bricks are transported to the two trimming mechanisms for trimming in an orderly manner.

[0018] The trimming mechanism is divided into a short side trimming mechanism and a long side trimming mechanism according to the order of trimming the short side (horizontally) first and then the long side (vertically) on the upper surface of the tea brick.

[0019] The short side trimming mechanism is composed of two identical trimming mechanisms mounted in parallel on the two side guide plates 11. The trimming mechanism is composed of a ball roller 3, a trimming tool, a trimming mechanism bracket 7, etc. The trimming tool is driven by a drive motor 6 and includes a trimming blade 5.

[0020] The trimming blade 5 is at the same level as the lower surface of the spherical roller 3. The spherical roller 3 is pressed on the surface of the tea brick, and the trimming blade 5 trims the tea brick.

[0021] The trimming mechanism bracket 7 of the short side trimming mechanism is hinged to the conveyor guide plate 11, and a tension spring 8 is installed between the short side trimming mechanism and the conveyor; with the assistance of the tension spring 8, the trimming mechanism bracket 7 is constrained and tightened, so that the spherical roller 3 is close to the upper surface of the tea brick.

[0022] The long side trimming mechanism 9 and the short side trimming mechanism have the same structure, one is before the tea brick auxiliary steering mechanism, and the other is after the tea brick auxiliary steering mechanism.

[0023] The tea brick auxiliary steering mechanism consists of a curved guide plate 12 and a ball bearing 10. The curved guide plate 12 is fixedly mounted on the upper surface of the chain conveyor 1, and the ball bearing 10 is embedded inside the curved guide plate 12. The curved guide plate 12 and the guide plate 11 on the other side of the chain conveyor form a longitudinal channel for conveying tea bricks.

[0024] When the tea brick moves in the direction of the arrow and is transported horizontally on the conveyor belt, the side of the tea brick with the longer edge first contacts the outer side of the ball bearing 10, and the tea brick is passively rotated toward the other side of the shorter edge. Under the joint action of the arc-shaped guide plate 10 and the conveyor belt, the tea brick is automatically turned from horizontal transport to longitudinal transport, and then enters the long edge trimming mechanism 9 for longitudinal trimming.

[0025] Specific implementation method: When the chain conveyor 1 and the trimming mechanism are started, the tea bricks are fed into the short-side trimming mechanism, and the tea bricks begin to be trimmed laterally under the action of gravity and the friction force of the chain.

[0026] The upper surface of the tea brick is pressed down by the spherical roller 3 (height limit), and the trimming blade 5 is coaxial and speed-controlled with the roller bearing 4. The two roller bearings 4 simultaneously clamp the tea brick laterally (width limit), performing transverse trimming during the tea brick conveyance process. The trimming mechanism bracket 7 is hinged to the outer shell of the chain conveyor 1. With the assistance of the tension spring 8, the trimming mechanism bracket 7 is restrained and tightened, so that the spherical roller 3 is tightly attached to the upper surface of the tea brick; the long side trimming mechanism operates in the same way. The trimming tool can be the same as the tool and blade in the above-mentioned background technology, which is existing technology and does not need to be described in this technical solution.

Claims

1. An automatic trimming device for tea bricks, comprising a chain conveyor, a short edge trimming mechanism and a long edge trimming mechanism, characterized in that: A tea brick auxiliary steering mechanism is also included between the short side trimming mechanism and the long side trimming mechanism; The tea brick auxiliary steering mechanism is composed of an arc-shaped guide plate and a ball bearing; The arc-shaped guide plate is fixedly mounted on the chain conveyor, and the ball bearing is embedded in the inner side of the arc-shaped guide plate; the arc-shaped guide plate and the guide plate on the other side of the chain conveyor form a longitudinal tea brick conveying channel; When the tea brick is transported horizontally on the conveyor belt along the running direction, one side of the edge of the tea brick first contacts the outer side of the ball bearing, and the tea brick is passively rotated toward the other side of the edge. Under the joint action of the arc-shaped guide plate and the conveyor belt, the tea brick is automatically turned from horizontal transportation to longitudinal transportation.

2. The automatic trimming device for tea bricks as described in claim 1, wherein the chain conveyor is installed in an inclined manner with the left side higher and the right side lower when the tea bricks are transported horizontally according to the trimming order of the tea bricks. The tea bricks are transported in an orderly manner under the action of their own weight and the friction of the conveyor belt.

3. The automatic trimming device for tea bricks according to claim 1, wherein the short side trimming mechanism is composed of two trimming mechanisms installed in parallel on the two side guide plates.

4. The automatic trimming device for tea bricks according to claim 1, wherein the long side trimming mechanism is composed of two trimming mechanisms installed in parallel and having the same structure; one of them is arranged on the guide plate of the longitudinal tea brick conveying channel, and the other is arranged on the arc guide plate.

5. The automatic trimming device for tea bricks as described in claim 1, wherein the trimming mechanism is composed of a spherical roller, a trimming tool, a mounting bracket and a roller bearing; the trimming tool includes a trimming blade; the trimming blade and the lower surface of the spherical roller are on the same horizontal plane.

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