A tea pressing device

Abstract

The present invention relates to the field of extrusion devices, and more particularly to a tea compacting device. Its structure includes: a cake pressing device, with multiple cake pressing devices. An inlet hopper is installed between the cake pressing devices. A feeder is installed at the bottom of the inlet hopper. A conveyor belt is installed at the discharge port of the feeder to connect the discharge port of the feeder with the cake pressing device. A feeding belt is arranged at the bottom of the cake pressing device. The improved device is quantitatively conveyed into the pressure feeder through the cooperation of the inlet hopper and the conveyor belt. The second extrusion rod performs the first-stage extrusion to form it into a tea cake, and the first extrusion rod performs the second-stage pressure holding, reducing the waiting time of the second extrusion rod during operation and improving the overall efficiency. Since there is a need for displacement between the second extrusion rod and the first extrusion rod, in order to prevent the tea cake from loosening during the movement, the second frame and the third frame inside the pressure feeder assist in pressure holding by slowing down the separation speed from the spring with the assistance of the stopper, making the tea cake more compact when compressed.

Description

Technical Field

[0001] The present invention is a tea compacting device, belonging to the field of extrusion devices. Background Art

[0002] Tea pressing devices are widely used in the production and processing of various compressed teas (such as Pu-erh tea, dark tea, etc.). When selecting a tea pressing device, it is a key equipment in the tea processing process, specifically used to shape tea into specific forms, such as cake shape, brick shape or bowl shape, etc.

[0003] In the processing step, the tea needs to be shaped by an extrusion device. However, after shaping, in order to ensure that the tea cake is firm and does not loosen or expand, necessary pressure holding treatment is also required. Although this link is crucial, it also makes the entire processing process time-consuming and greatly affects the overall work efficiency. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a tea compacting device to solve the above problems.

[0005] To achieve the above purpose, the present invention is realized through the following technical solutions: A tea compacting device, its structure includes: a cake pressing device, there are multiple cake pressing devices, a feeding hopper is installed between the cake pressing devices, a feeder is installed at the bottom of the feeding hopper, a conveyor belt is installed at the discharge port of the feeder to connect the discharge port of the feeder with the cake pressing device, a feeding belt is arranged at the bottom of the cake pressing device, the cake pressing device includes a first extrusion rod, a second extrusion rod and a frame body, the top of the frame body is installed with the first extrusion rod and the second extrusion rod, the conveyor belt is installed between the first extrusion rod and the second extrusion rod, a transverse push rod is arranged on the surface of the frame body, a pressing device is installed at the movable end of the transverse push rod, the transverse push rod controls the movement of the pressing device at the installation positions of the first extrusion rod, the second extrusion rod and the conveyor belt, the pressing device is nested and matched with the pushing slide rail on the surface of the frame body, a discharging device is arranged at the installation position of the first extrusion rod, and pressing blocks are arranged at the bottoms of the first extrusion rod and the second extrusion rod, and the pressing blocks are nested and matched with the pressing device.

[0006] Preferably, the pressing device includes a pressing frame and a material retaining groove, sliding blocks matched with the pushing slide rail are arranged on both sides of the material retaining groove, the material retaining groove is movably matched with the pressing frame, springs and first sliding rods matched with the pressing frame are arranged at the tops of the sliding blocks, and the first sliding rods are nested and matched with the springs.

[0007] Preferably, the pressing frame includes a first frame body, a second frame body that slides is installed in the inner groove of the first frame body, a third frame body is nested in the second frame body, the third frame body is slidably matched with the second frame body, and the second frame body is embedded in the inner groove of the material retaining groove.

[0008] Preferably, the first frame body includes a frame. A sliding groove is provided at the bottom of the frame, and it is nested with the surface of the material retaining groove through the sliding groove. Limiters are symmetrically arranged on both sides of the frame, and a sliding plate for cooperating with the second frame body is installed on the inner wall of the frame.

[0009] Preferably, the second frame body includes a guide plate. A first pressing plate is further provided at the bottom of the guide plate. The guide plate and the first pressing plate are arranged in parallel, and a second sliding rod is installed between their surfaces. The second sliding rod is in sliding cooperation with the sliding plate. A toroidal surface is further installed in the middle of the guide plate and the first pressing plate, and a limiting cross bar is arranged between the toroidal surfaces for cooperating with the third frame body.

[0010] Preferably, the third frame body includes a second pressing plate. A third sliding rod and an auxiliary rod are provided at the top of the second pressing plate. The second pressing plate is in sliding cooperation with the limiting cross bar in the middle of the guide plate through the third sliding rod and the auxiliary rod.

[0011] Preferably, the discharging device includes a discharging pipe opposite to the first extrusion rod. A slidable baffle is provided at the top opening of the discharging pipe, and the baffle is driven by a discharging push rod.

[0012] Preferably, the guide plate includes a limiting ear and a spring limiting sleeve welded on the surface of the frame. A bladder cavity is installed between the limiting ear and the spring limiting sleeve. The internal gas of the bladder cavity is controlled to communicate through a solenoid valve on the side, and a pressure column connecting the bladder cavity is installed at the top of the limiting ear.

[0013] Preferably, the surface of the guide plate is an inwardly inclined surface.

[0014] Preferably, the bladder cavity is made of rubber material.

[0015] A tea pressing device of the present invention has the following effects: The improved device is quantitatively conveyed to the inside of the material pressing device through the cooperation of the feeding hopper and the conveying belt. The second extrusion rod performs the first-stage extrusion to form it into a tea cake. The first extrusion rod performs the second-stage pressure maintaining, reducing the waiting time of the second extrusion rod during work and improving the overall efficiency. Since there is a need for displacement between the second extrusion rod and the first extrusion rod, in order to prevent the tea cake from loosening during the movement, the second frame body and the third frame body inside the material pressing device assist in pressure maintaining by slowing down the speed of separating from the spring with the assistance of the limiters, making the tea cake more compact when compressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present invention will become more apparent:

[0017] Figure 1 It is a schematic structural diagram of a tea pressing device of the present invention.

[0018] Figure 2Schematic side view structure of the present invention.

[0019] Figure 3 Schematic structure diagram of the blank holder of the present invention.

[0020] Figure 4 Schematic exploded structure diagram of the blank holder of the present invention.

[0021] Figure 5 Schematic structure diagram of the stopper of the present invention.

[0022] Figure 6 Schematic sectional structure diagram of the stopper of the present invention.

[0023] In the figure:

[0024] 1. Cake pressing device; 2. Feeding belt; 3. Feeding hopper; 4. Feeder; 5. Material conveying belt;

[0025] 11. First extrusion rod; 12. Second extrusion rod; 13. Transverse push rod; 14. Pushing rail; 15. Blank holder; 16. Discharger; 17. Frame; 18. Pressing block;

[0026] 51. First frame; 52. Second frame; 53. Third frame;

[0027] 121. Pressing column; 122. Limiting ear; 123. Capsule cavity; 124. Solenoid valve; 125. Spring limiting sleeve;

[0028] 151. Pressing frame; 152. Material retaining groove; 153. Slide block; 154. First slide rod; 155. Spring;

[0029] 161. Discharge pipe; 162. Baffle; 163. Discharge push rod;

[0030] 511. Frame; 512. Stopper; 513. Slide plate;

[0031] 521. Guide plate; 522. Second slide rod; 523. First pressing plate; 524. Limiting cross bar;

[0032] 531. Third slide rod; 532. Auxiliary rod; 533. Second pressing plate. Detailed implementation mode

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more, unless otherwise specifically defined.

[0035] After the existing tea cakes are shaped, in order to ensure that the tea cakes are firm and do not loosen or expand, necessary pressure-holding treatment is still required. Although this link is crucial, it also makes the entire processing process time-consuming and greatly affects the overall work efficiency. Therefore, to solve the above problems, the following technical solutions are proposed in this case:

[0036] Please refer to Figures 1 to 6 , the present invention provides a technical solution for a tea pressing device: its structure includes: a cake pressing device 1, there are multiple cake pressing devices 1, a feeding hopper 3 is installed between the cake pressing devices 1, a feeder 4 is installed at the bottom of the feeding hopper 3, a conveyor belt 5 is installed at the discharge port of the feeder 4 to connect the discharge port of the feeder 4 with the cake pressing device 1, a feeding belt 2 is arranged at the bottom of the cake pressing device 1, the cake pressing device 1 includes a first extrusion rod 11, a second extrusion rod 12, and a frame body 17, the top of the frame body 17 is installed with the first extrusion rod 11 and the second extrusion rod 12, the conveyor belt 5 is installed between the first extrusion rod 11 and the second extrusion rod 12, a horizontal push rod 13 is arranged on the surface of the frame body 17, a pressing device 15 is installed at the movable end of the horizontal push rod 13, the horizontal push rod 13 controls the pressing device 15 to move at the installation positions of the first extrusion rod 11, the second extrusion rod 12, and the conveyor belt 5, the pressing device 15 is nested and matched with a pushing slide rail 14 on the surface of the frame body 17, a discharging device 16 is arranged at the installation position of the first extrusion rod 11, and pressing blocks 18 are arranged at the bottoms of the first extrusion rod 11 and the second extrusion rod 12, and the pressing blocks 18 are nested and matched with the pressing device 15.

[0037] The main structure of this device includes a cake pressing device 1. There is a feed hopper 3 installed between the cake pressing devices 1. The feed hopper 3 is used to place tea leaves. A feeder 4 is provided at the bottom of the feed hopper 3. The feeder 4 conveys the quantitatively weighed tea leaves through a conveyor belt 5 to the cake pressing devices 1 on both sides for the work of pressing tea cakes. Specifically, there is an opening and closing plate body inside the feeder, which dumps the tea leaves to the conveyor belt 5, enabling the conveyor belt 5 to convey the tea leaves out. The tea cakes after being extruded by the cake pressing device 1 are uniformly conveyed to a designated area through a conveyor belt 2.

[0038] The structure of the cake pressing device 1 includes a second extrusion rod 12 for extrusion and a first extrusion rod 11 for pressure holding. A pushing rail 14 is provided on the surface of the frame 17. The pushing rail 14 is used to support the sliding of the pressure applicator 15. The pressure applicator 15 is driven to displace by a transverse push rod 13. During processing, the pressure applicator 15 stays between the first extrusion rod 11 and the second extrusion rod 12, and the tea leaves are fed to the pressure applicator 15 through the conveyor belt 5. Then, the transverse push rod 13 pushes the pressure applicator 15 to displace to the first extrusion rod 11. Pressure blocks 18 are installed at the movable ends of the first extrusion rod 11 and the second extrusion rod 12. The tea leaves inside the conveyor belt 5 are pressed into cakes by the extrusion of the first extrusion rod 11 and the second extrusion rod 12 on the pressure blocks 18.

[0039] An ejector 16 is provided at the bottom opposite to the first extrusion rod 11. The structure of the ejector 16 includes an outlet pipe 161 for conveying the formed tea cakes. A movable baffle 162 is provided in the inner cavity of the outlet pipe 161. The baffle 162 is pushed by an outlet push rod 163. The movement of the tea cakes is controlled by opening and closing the passage opposite to the first extrusion rod 11 through the baffle 162.

[0040] The structure of the pressure applicator 15 includes a pressure frame 151 and a material retaining groove 152 at the bottom. The material retaining groove 152 is used for the forming limit of the tea cakes. When the top pressure frame 151 presses down, it will compress the tea cakes. Sliders 153 are installed on both sides of the material retaining groove 152. The sliders 153 are slidably matched with the pushing rail 14. The sliders 153 extend upward and are installed with first sliding rods 154. The first sliding rods 154 are nested with springs 155. The springs 155 are used for the reset of the pressure frame 151.

[0041] The purpose of the spring 155 to reset the pressure frame 151 is:

[0042] The pressing frame 151 includes a first frame body 51. Inside the first frame body 51, a second frame body 52 and a third frame body 53 are installed. When the first frame body 51 is at a high position, the third frame body 53 and the second frame body 52 are in a separated state, enabling the tea leaves to fall into the cavity of the material blocking groove 152 for compression. Inside the frame body 511 of the first frame body 51, a slide plate 513 is installed. The slide plate 513 cooperates with the second slide rod 522 of the second frame body 52. The second slide rod 522 is installed between the guide plate 521 and the first pressing plate 523. A ring wall is formed between the guide plate 521 and the first pressing plate 523. Inside the ring wall, a limiting cross bar 524 that cooperates with the second frame body 52 is installed. The limiting cross bar 524 cooperates with the third slide rod 531 and the auxiliary rod 532 on the surface of the second pressing plate 533 of the third frame body 53. When not being extruded, the second pressing plate 533 of the third frame body 53 is separated from the first pressing plate 523 to form a pore. When the conveying belt 5 imports the tea leaves, the tea leaves can fall into the cavity of the material blocking groove 152, and when the transverse push rod 13 pushes the material pressing device 15 to generate vibration, the tea leaves will quickly fall and be evenly dispersed.

[0043] Limiters 512 are installed on both sides of the frame body 511. The main purpose is to solve the problem that when the device performs pressure holding, the material blocking groove 152 needs to be moved. During the moving process, the tea cake will gradually expand and loosen. In order to maintain the integrity of the tea cake when entering the pressure holding process, the third frame body 53 and the second frame body 52 of this device are pressed together inside the material blocking groove 152 to form an auxiliary pressure holding operation. In order to prevent the first frame body 51 from quickly resetting when the second extrusion rod 12 becomes loose, this device is assisted by the limiter 512.

[0044] Specifically, the limiter 512 is provided with a pressing column 121. The pressing column 121 cooperates with the pressing block 18 at the top. A limiting ear 122 and a spring limiting sleeve 125 are welded on the side of the frame body 511. A bladder cavity 123 is arranged between the limiting ear 122 and the spring limiting sleeve 125. The bladder cavity 123 is controlled by an electromagnetic valve 124. After the frame body 511 is pressed down, the pressing column 121 squeezes the bladder cavity 123, and the gas is discharged through the electromagnetic valve 124. At this time, the inner wall of the bladder cavity 123 forms a wrinkled layer, which engages with the surface of the first slide rod 154. Through the frictional force, the frame body 511 is prevented from quickly resetting under the action of the spring 155. When entering the first extrusion rod 11, the pressing frame 151 is used for auxiliary pressure holding.

[0045] The improved device is quantitatively conveyed into the inside of the pressure feeder 15 through the cooperation of the feeding hopper 3 and the conveying belt 5. The second extrusion rod 12 performs the first-stage extrusion to form it into a tea cake. The first extrusion rod 11 performs the second-stage pressure holding to reduce the waiting time of the second extrusion rod 12 during operation and improve the overall efficiency. Since there is a need for displacement between the second extrusion rod 12 and the first extrusion rod 11, in order to prevent the tea cake from loosening during the movement, the second frame body 52 and the third frame body 53 inside the pressure feeder 15 assist in pressure holding by slowing down the separation speed from the spring 155 with the assistance of the position limiter 512, making the tea cake more compact when compressed.

[0046] The above only describes the basic principle and preferred embodiments of the present invention. Those skilled in the art can make many changes and improvements according to the above description, and these changes and improvements should fall within the protection scope of the present invention.

[0047] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tea compacting device, the structure of which includes: A cake pressing device (1), there are multiple said cake pressing devices (1), a feed hopper (3) is installed between the said cake pressing devices (1), a feeder (4) is installed at the bottom of the feed hopper (3), and a conveyor belt (5) is installed at the discharge port of the said feeder (4) to connect the discharge port of the feeder (4) with the cake pressing device (1). The bottom of the said cake pressing device (1) is provided with a feeding belt (2), and its characteristics are as follows: The said cake pressing device (1) includes a first extrusion rod (11), a second extrusion rod (12), and a frame body (17). The top of the said frame body (17) is installed with a first extrusion rod (11) and a second extrusion rod (12). The said conveyor belt (5) is installed between the first extrusion rod (11) and the second extrusion rod (12). The surface of the said frame body (17) is provided with a transverse push rod (13), and a pressure feeder (15) is installed at the movable end of the transverse push rod (13). The transverse push rod (13) controls the movement of the pressure feeder (15) at the installation positions of the first extrusion rod (11), the second extrusion rod (12), and the conveyor belt (5). The said pressure feeder (15) is nested and matched with the pushing slide rail (14) on the surface of the frame body (17). The installation position of the said first extrusion rod (11) is provided with a discharge device (16). The bottoms of the first extrusion rod (11) and the second extrusion rod (12) are provided with pressing blocks (18), and they are nested and matched through the pressing blocks (18) and the pressure feeder (15); The said pressure feeder (15) includes a pressure frame (151) and a material retaining groove (152). Sliders (153) for cooperating with the pushing slide rail (14) are provided on both sides of the said material retaining groove (152). The said material retaining groove (152) is movably matched with the pressure frame (151). Springs (155) and first slide rods (154) for cooperating with the pressure frame (151) are provided at the tops of the said sliders (153). The said first slide rods (154) are nested and matched with the springs (155); The said pressure frame (151) includes a first frame body (51). A sliding second frame body (52) is installed in the inner groove of the first frame body (51). A third frame body (53) is nested in the second frame body (52), and the third frame body (53) is slidably matched with the second frame body (52). The second frame body (52) is embedded in the inner groove of the material retaining groove (152). The said first frame body (51) includes a frame body (511), and limiters (512) are symmetrically provided on both sides of the said frame body (511); The said limiter (512) includes a limit ear (122) welded on the surface of the frame body (511) and a spring limit sleeve (125). A bladder cavity (123) is installed between the limit ear (122) and the spring limit sleeve (125). The internal gas communication of the bladder cavity (123) is controlled by a solenoid valve (124) on the side. A pressure column (121) connecting the bladder cavity (123) is installed at the top of the limit ear (122).

2. The tea pressing device according to claim 1, characterized in that: A chute is provided at the bottom of the said frame body (511), and it is nested with the surface of the material retaining groove (152). A slide plate (513) for cooperating with the second frame body (52) is installed on the inner wall of the said frame body (511).

3. The tea pressing device according to claim 2, characterized in that: The second housing (52) includes a guide plate (521). A first pressing plate (523) is further provided at the bottom of the guide plate (521). The guide plate (521) and the first pressing plate (523) are arranged in parallel, and a second sliding rod (522) is installed between their surfaces. The second sliding rod (522) is in sliding fit with the sliding plate (513). A toroidal surface is further installed in the middle of the guide plate (521) and the first pressing plate (523), and a limiting cross bar (524) is arranged between the toroidal surfaces to cooperate with the third housing (53).

4. The tea compacting device according to claim 3, wherein: The third housing (53) includes a second pressing plate (533). A third sliding rod (531) and an auxiliary rod (532) are provided at the top of the second pressing plate (533). The second pressing plate (533) is in sliding fit with the limiting cross bar (524) in the middle of the guide plate (521) through the third sliding rod (531) and the auxiliary rod (532).

5. The tea pressing device according to claim 1, characterized in that: The discharger (16) includes a discharge pipe (161) opposite to the first extrusion rod (11). A slidable baffle (162) is provided at the top opening of the discharge pipe (161). The baffle (162) is driven by a discharge push rod (163).

6. The tea pressing device according to claim 3, wherein: The surface of the guide plate (521) is an inwardly inclined surface.

7. The tea pressing device according to claim 1, characterized in that: The bladder cavity (123) is made of rubber material.

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