Screening device for tea processing

Abstract

The utility model provides a screening device for tea processing, which comprises a frame and a vibrating box, a support spring is arranged between the frame and the vibrating box, a vibrating motor is arranged on the vibrating box, a first screen is arranged in the vibrating box, a mounting seat is further arranged on the frame, a driving shaft and a first motor are arranged on the mounting seat, an eccentric wheel is arranged at the end of the driving shaft, and the first screen is arranged in the first screen. A cross shaft and a connecting ring are further arranged on the mounting seat, the cross shaft comprises a first shaft rod and a second shaft rod, the first shaft rod is rotationally connected with the mounting seat, the second shaft rod is rotationally connected with the connecting ring, a spherical head is arranged on the connecting ring, and a connecting seat is arranged on the eccentric wheel; the connecting ring is provided with a second screen, and the diameter of meshes in the second screen is larger than that of meshes in the first screen. The tea leaf screening device solves the technical problem that when tea leaves move on a vibrating screen, part of the tea leaves flow out of the screen before being scattered, so that part of sundries are thrown and mixed in the tea leaves, and the technical effect that the tea leaves can be firstly scattered and then screened is achieved.

Description

Technical Field

[0001] This utility model relates to the field of tea processing technology, and in particular to a screening device for tea processing. Background Technology

[0002] During tea processing, tea leaves need to be screened to remove impurities such as broken leaves, tea stems, and dust.

[0003] Chinese utility model patent CN220781149U discloses a tea sieve shaker, including a fixed plate and a sorting box. Four support plates are fixedly connected to the top of the fixed plate, and each of the four support plates has a support spring assembly fixedly connected to its top. Two connecting plates are fixedly connected to both sides of the sorting box, and the tops of the four support spring assemblies are fixedly connected to their corresponding connecting plates. A vibration motor is installed on one side of the sorting box, and a cover plate is hinged to the top of the sorting box. A cleaning assembly is installed on the sorting box. This tea sieve shaker uses tea cleaning rollers to rotate and clean tea stems and debris stuck on the sieve, improving the sorting efficiency.

[0004] In the aforementioned utility model patent, when using a tea sieve shaker, the tea leaves are directly poured into the sorting box and fall onto the sieve mesh, causing the tea leaves to accumulate on the sieve mesh. Since the tea leaves will entangle with each other and some impurities are wrapped inside the tea leaves, some tea leaves flow out of the sieve mesh before they disperse when the tea leaves move on the vibrating sieve mesh, resulting in some impurities being mixed in with the tea leaves. Subsequently, the tea leaves need to be sieved a second time, which is time-consuming and labor-intensive. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a screening device for tea processing, which solves the problem that some tea leaves flow out of the screen before they disperse when the tea leaves move on the vibrating screen, resulting in some impurities being mixed in with the tea leaves.

[0006] According to an embodiment of this utility model, a screening device for tea processing includes a frame and a vibrating box. A support spring is provided between the frame and the vibrating box. A vibration motor is provided on the vibrating box, and a first screen is provided inside the vibrating box. A mounting base is also provided on the frame, and the mounting base is located directly above one end of the first screen. A rotatable drive shaft and a first motor that are driven and connected to the drive shaft are provided on the mounting base. An eccentric wheel is provided at the end of the drive shaft. A cross shaft and a connecting ring are also provided on the mounting base. The cross shaft includes a first shaft and a second shaft arranged in a cross configuration. The first shaft is rotatably connected to the mounting base, and the second shaft is rotatably connected to the connecting ring. A spherical head is provided on the connecting ring. A connecting seat that cooperates with the spherical head is provided on the eccentric wheel. A second screen is provided on the side of the connecting ring near the first screen, and the diameter of the mesh on the second screen is larger than the diameter of the mesh on the first screen.

[0007] Furthermore, the mounting base is symmetrically provided with two first connecting arms, and the two ends of the first shaft are respectively rotatably connected to the two first connecting arms one by one.

[0008] Furthermore, the connecting ring is symmetrically provided with two second connecting arms, and the two ends of the second shaft are respectively rotatably connected to the two second connecting arms one by one.

[0009] Furthermore, a plurality of third connecting arms are provided between the connecting ring and the second screen, and the third connecting arms are spaced apart along the circumference of the connecting ring.

[0010] Furthermore, the connecting seat includes a detachably connected seat body and a cover body, the seat body and the cover body forming a spherical groove for accommodating part of the spherical head.

[0011] Furthermore, the mounting base is movably mounted on the frame and the moving direction of the mounting base is parallel to the width direction of the first screen. The frame is also provided with a drive assembly that is pulsatorically connected to the mounting base, and the drive assembly drives the mounting base to reciprocate along the width direction of the first screen.

[0012] Furthermore, the drive assembly includes a second motor and a swing arm disposed at the output end of the second motor. A transmission rod is provided at the end of the swing arm away from the second motor. A sliding groove is provided on the mounting base. The length direction of the sliding groove is perpendicular to the moving direction of the mounting base, and the transmission rod extends into the sliding groove.

[0013] Furthermore, the frame is provided with a guide rail, the length direction of which is consistent with the moving direction of the mounting base, and the mounting base is provided with a slider that cooperates with the guide rail.

[0014] Furthermore, the vibration box is provided with a slot, and the first screen mesh cooperates with the slot.

[0015] Furthermore, the first screen is provided with a handle, which is located on the side of the first screen exposed in the slot.

[0016] Compared with the prior art, this utility model has the following advantages: By using a first screen and a second screen to perform secondary screening of tea leaves, after the tea leaves to be screened are poured into the second screen, the first motor drives the drive shaft to rotate, which in turn drives the eccentric wheel to rotate. The connecting ring rotates around the drive shaft under the drive of the eccentric wheel, and when the connecting ring rotates, the cross shaft reciprocates along the axial direction of the first shaft, thereby causing the connecting ring to shake. When the connecting ring moves, it causes the second screen connected to the connecting ring to vibrate, so as to disperse the tea leaves that are tangled together, and the dispersed tea leaves pass through the mesh of the second screen. The tea leaves fall onto the first screen, and then the vibrating motor drives the vibrating box to vibrate on the frame, thus sieving the tea leaves through the first screen. Impurities in the tea leaves pass through the mesh of the first screen and fall to the bottom of the screen, while the tea leaves after removing the impurities move along the first screen to the other end. This solves the technical problem that some tea leaves flow out of the screen before they are dispersed when the tea leaves move on the vibrating screen, resulting in some impurities being mixed in with the tea leaves. It produces the technical effect of dispersing the tea leaves before sieving them, which helps to save time and labor required for tea leaf sieving. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a screening device for tea processing according to an embodiment of the present invention;

[0018] Figure 2 This is a partial structural schematic diagram of a screening device for tea processing according to an embodiment of the present invention;

[0019] Figure 3 This is a cross-sectional view of a tea processing screening device according to an embodiment of the present invention;

[0020] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0021] In the above attached figures: 1. Frame; 11. Support spring; 12. Guide rail; 2. Vibration box; 21. Vibration motor; 3. First screen; 31. Handle; 4. Mounting base; 41. Drive shaft; 42. First motor; 43. Eccentric wheel; 44. Connecting seat; 45. First connecting arm; 46. Seat body; 47. Cover body; 48. Slide groove; 49. Slider; 5. Cross shaft; 51. First shaft; 52. Second shaft; 6. Connecting ring; 61. Spherical head; 62. Second connecting arm; 63. Third connecting arm; 7. Second screen; 8. Second motor; 81. Swing arm; 82. Transmission rod. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes a screening device for tea processing, which is used to screen tea leaves during the tea processing process to remove impurities such as broken leaves, tea stems, and dust mixed in with the tea leaves.

[0024] Please refer to Figure 1 and Figure 2 The tea processing screening device includes a frame 1 and a vibrating box 2. A support spring 11 is provided between the frame 1 and the vibrating box 2. A vibration motor 21 is provided on the vibrating box 2, and a first screen 3 is provided inside the vibrating box 2. A mounting base 4 is also provided on the frame 1. The mounting base 4 is located directly above one end of the first screen 3. A rotatable drive shaft 41 and a first motor 42 that is drively connected to the drive shaft 41 are provided on the mounting base 4. An eccentric wheel 43 is provided at the end of the drive shaft 41. The mounting base 4 also has... The device is equipped with a cross shaft 5 and a connecting ring 6. The cross shaft 5 includes a first shaft 51 and a second shaft 52 arranged in a cross configuration. The first shaft 51 is rotatably connected to the mounting base 4, and the second shaft 52 is rotatably connected to the connecting ring 6. The connecting ring 6 is provided with a spherical head 61. The eccentric wheel 43 is provided with a connecting seat 44 that cooperates with the spherical head 61. The side of the connecting ring 6 near the first screen 3 is provided with a second screen 7, and the diameter of the mesh on the second screen 7 is larger than the diameter of the mesh on the first screen 3.

[0025] Specifically, the working process of the tea processing screening device provided in this embodiment is as follows: the first motor 42 and the vibration motor 21 are turned on, and the tea to be screened is poured onto the second screen 7. The drive shaft 41 rotates under the drive of the first motor 42, driving the eccentric wheel 43 to rotate. The connecting ring 6 rotates around the drive shaft 41 under the drive of the eccentric wheel 43. When the connecting ring 6 rotates, the cross shaft 5 reciprocates along the axial direction of the first shaft 51, causing the connecting ring 6 to shake. When the connecting ring 6 moves, it drives the second screen 7 to vibrate and shake, placing it on the screen. The tea leaves on the second screen 7 are dispersed from being tangled together, and the dispersed tea leaves pass through the mesh of the second screen 7 and fall onto the first screen 3. The vibration motor 21 drives the vibration box 2 to vibrate on the frame 1, causing the first screen 3 to vibrate. After the tea leaves fall onto the first screen 3, the first screen 3 sieves the tea leaves, causing impurities in the tea leaves to pass through the mesh of the first screen 3 and fall below the first screen 3. The tea leaves after removing impurities move along the first screen 3 to the other end of the first screen 3, thereby removing impurities from the tea leaves. The tea processing screening device provided in this embodiment disperses the tea leaves by shaking them with the second screen 7 and then sieves them with the second screen 7, avoiding the tea leaves from tangling and enveloping impurities, thus saving time and labor required for tea screening.

[0026] like Figure 2 As shown, two first connecting arms 45 are symmetrically arranged on the mounting base 4, and the two ends of the first shaft 51 are rotatably connected to the two first connecting arms 45 respectively. The arrangement of two symmetrical first connecting arms 45 on the mounting base 4 and their rotatable connection to the two ends of the first shaft 51 ensures stable engagement between the cross shaft 5 and the mounting base 4, preventing the cross shaft 5 from disengaging from the mounting base 4 during rotation.

[0027] Please refer to Figure 2 The connecting ring 6 is symmetrically provided with two second connecting arms 62, and the two ends of the second shaft 52 are respectively rotatably connected to the two second connecting arms 62 in a one-to-one correspondence. The two second connecting arms 62 symmetrically arranged on the connecting ring 6 are used to rotatably connect to the two ends of the second shaft 52 in a one-to-one correspondence, so that the cooperation between the cross shaft 5 and the connecting ring 6 is reliable, which helps to improve the structural stability of the tea processing screening device.

[0028] In detail, a plurality of third connecting arms 63 are provided between the connecting ring 6 and the second screen 7, and the third connecting arms 63 are spaced apart along the circumference of the connecting ring 6. The connecting ring 6 and the second screen 7 are connected by the third connecting arms 63, which ensures a reliable connection between the connecting ring 6 and the second screen 7 while maintaining a gap between the second screen 7 and the connecting ring 6, so as to facilitate pouring the tea leaves to be screened onto the second screen 7.

[0029] Please combine Figure 3 and Figure 4 The connecting seat 44 includes a detachably connected seat body 46 and a cover body 47. The seat body 46 and the cover body 47 form a spherical groove that accommodates part of the spherical head 61. The spherical groove formed by the seat body 46 and the cover body 47 accommodates the spherical head 61, thus enabling the connection seat 44 and the spherical head 61 to cooperate. When the spherical head 61 is installed on the connecting seat 44, the spherical head 61 is first placed into the seat body 46, and then the cover body 47 is installed on the seat body 46. The cover body 47 adopts a split structure, which facilitates the assembly of the tea processing screening device.

[0030] like Figure 1 As shown, the mounting base 4 is movably mounted on the frame 1, and the moving direction of the mounting base 4 is parallel to the width direction of the first screen 3. The frame 1 is also provided with a drive assembly that is pulsatorically connected to the mounting base 4. The drive assembly drives the mounting base 4 to reciprocate along the width direction of the first screen 3. By using the drive assembly to drive the mounting base 4 to reciprocate along the width direction of the first screen 3 on the frame 1, the tea leaves falling into the second screen 7 can be distributed along the width direction of the first screen 3, avoiding the accumulation of tea leaves on the first drying screen, and further improving the screening efficiency of the tea processing screening device.

[0031] In this embodiment, the drive assembly includes a second motor 8 and a swing arm 81 disposed at the output end of the second motor 8. A transmission rod 82 is provided at the end of the swing arm 81 away from the second motor 8. A sliding groove 48 is provided on the mounting base 4, the length direction of which is perpendicular to the moving direction of the mounting base 4, and the transmission rod 82 extends into the sliding groove 48. When the swing arm 81 rotates under the drive of the second motor 8, the transmission rod 82 pushes or pulls the mounting base 4 to move on the frame 1 while simultaneously sliding back and forth within the sliding groove 48, thereby realizing the reciprocating movement of the mounting base 4 on the frame 1.

[0032] Please refer to Figure 1 and Figure 3The frame 1 is equipped with a guide rail 12, the length direction of which is consistent with the moving direction of the mounting base 4, and the mounting base 4 is equipped with a slider 49 that cooperates with the guide rail 12. The guide rail 12 on the frame 1 guides the movement of the mounting base 4, and the slider 49 on the mounting base 4 that cooperates with the guide rail 12 ensures that the mounting base 4 reciprocates along a preset direction, while also improving the stability of the mounting base 4 during movement.

[0033] Please combine Figure 1 and Figure 3 The vibrating box 2 is provided with a slot, and the first screen 3 cooperates with the slot. Inserting the first screen 3 into the slot will fix the first screen 3 on the vibrating box 2, ensuring that the first screen 3 moves synchronously with the vibration of the vibrating box 2, and making it easy to remove the first screen 3 from the vibrating box 2 for replacement or cleaning.

[0034] Specifically, the first screen 3 is provided with a handle 31, which is located on the side of the first screen 3 exposed in the slot. By operating the handle 31 on the first screen 3, the first screen 3 can be easily moved on the vibrating box 2, making it convenient to insert the first screen 3 into the slot or to pull the first screen 3 out of the slot.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A screening device for tea processing, comprising a frame and a vibrating box, wherein a supporting spring is provided between the frame and the vibrating box, a vibrating motor is provided on the vibrating box and a first screen is provided inside the vibrating box, characterized in that: The frame is also provided with a mounting base, which is located directly above one end of the first screen. The mounting base is provided with a rotatable drive shaft and a first motor that is driven by the drive shaft. An eccentric wheel is provided at the end of the drive shaft. The mounting base is also provided with a cross shaft and a connecting ring. The cross shaft includes a first shaft and a second shaft arranged in a cross configuration. The first shaft is rotatably connected to the mounting base, and the second shaft is rotatably connected to the connecting ring. The connecting ring is provided with a spherical head. The eccentric wheel is provided with a connecting seat that cooperates with the spherical head. A second screen is provided on the side of the connecting ring near the first screen, and the diameter of the mesh on the second screen is larger than the diameter of the mesh on the first screen.

2. The tea processing screening device as described in claim 1, characterized in that: The mounting base is symmetrically provided with two first connecting arms, and the two ends of the first shaft are respectively rotatably connected to the two first connecting arms one by one.

3. The tea processing screening device as described in claim 1, characterized in that: The connecting ring is symmetrically provided with two second connecting arms, and the two ends of the second shaft are respectively rotatably connected to the two second connecting arms one by one.

4. The tea processing screening device as described in claim 1, characterized in that: A plurality of third connecting arms are provided between the connecting ring and the second screen, and the third connecting arms are spaced apart along the circumference of the connecting ring.

5. A screening device for tea processing as described in claim 1, characterized in that: The connecting seat includes a detachably connected seat body and a cover body, the seat body and the cover body forming a spherical groove for accommodating part of the spherical head.

6. The tea processing screening device as described in claim 1, characterized in that: The mounting base is movably mounted on the frame and the moving direction of the mounting base is parallel to the width direction of the first screen. The frame is also provided with a drive assembly that is pulsatorically connected to the mounting base, and the drive assembly drives the mounting base to reciprocate along the width direction of the first screen.

7. A screening device for tea processing as described in claim 6, characterized in that: The drive assembly includes a second motor and a swing arm disposed at the output end of the second motor. A transmission rod is provided at the end of the swing arm away from the second motor. A sliding groove is provided on the mounting base. The length direction of the sliding groove is perpendicular to the moving direction of the mounting base, and the transmission rod extends into the sliding groove.

8. A screening device for tea processing as described in claim 6, characterized in that: The frame is provided with a guide rail, the length direction of which is consistent with the moving direction of the mounting base, and the mounting base is provided with a slider that cooperates with the guide rail.

9. A screening device for tea processing as described in claim 1, characterized in that: The vibrating box is provided with a slot, and the first screen meshes with the slot.

10. A screening device for tea processing as described in claim 9, characterized in that: The first screen is provided with a handle, which is located on the side of the first screen that is exposed outside the slot.

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