Rotary press and coffee machine

Abstract

The utility model discloses a kind of rotary powder compressors, including powder compression head, guide, rotary driving part, transmission assembly;Powder compression head is equipped with inner cylinder cavity, the inner wall of inner cylinder cavity is equipped with guide rib;Guide is loaded into inner cylinder cavity, the outer wall of guide is equipped with sliding slot, guide rib moves along sliding slot, sliding slot is equipped with oblique section, oblique section is around the outer wall of guide;Rotary driving part is connected with powder compression head by transmission assembly;When not powder compression, powder compression board is at first position, rotary driving part is driven to powder compression head to descend motion by transmission assembly, in the process that guide rib moves along oblique section, powder compression head moves downward while itself occurs rotation, to coffee powder is rotated and compacted, after compaction, powder compression head reaches second position, solve the unevenness of existing powder compressor powder compression, compaction degree is not enough.

Description

Technical Field

[0001] This utility model relates to the field of coffee machines, and in particular to a rotary tamper and a coffee machine. Background Technology

[0002] Existing coffee machines that achieve automatic tamping and sealed brewing include a tamping head, which is connected to a drive motor via a transmission module. The drawback of this structure is that the tamping head assembly can only move downward or upward in one dimension, and cannot rotate at the same time as moving downward or upward. This results in insufficient flatness and compaction of the coffee powder after tamping, affecting the taste of the coffee powder after brewing. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, a first aspect of this utility model provides a rotary powder press, comprising a pressing head, a guide member, a rotary drive member, and a transmission assembly; the pressing head has an inner cylinder cavity, and the inner wall of the inner cylinder cavity is provided with guide ribs; the guide member is installed in the inner cylinder cavity, and the outer wall of the guide member is provided with a sliding groove, the guide ribs move along the sliding groove, and the sliding groove has an inclined section, the inclined section being wrapped around the outer wall of the guide member; the rotary drive member is connected to the pressing head through the transmission assembly, and the rotary drive member drives the pressing head to move up and down through the transmission assembly; as the guide ribs move along the inclined section, the pressing head rotates while moving downwards.

[0004] According to some embodiments of the present invention, the chute is further provided with a straight section, which is connected to the inclined section and is arranged vertically.

[0005] According to some embodiments of the present invention, the straight segment is connected above the oblique segment.

[0006] According to some embodiments of the present invention, the straight segment is connected below the oblique segment.

[0007] According to some embodiments of this utility model, the powder pressing head includes a powder pressing plate and a driven cylinder. The powder pressing plate is installed at the bottom of the driven cylinder, and the internal space of the driven cylinder is the inner cylinder cavity. The driven cylinder is connected to the transmission assembly. A connecting block is fixed on the top surface of the powder pressing plate, and a buckle is provided on the side wall of the connecting block. A slot is opened on the side wall of the bottom end of the driven cylinder, and the buckle is engaged in the slot.

[0008] According to some embodiments of the present invention, the rotary drive component includes a driving gear, a double-layer gear, and a transmission gear. The driving gear is mounted on the rotary drive component. The first layer of the double-layer gear meshes with the driving gear, and the second layer of the double-layer gear meshes with the transmission gear. The transmission gear has a mounting hole at its center for inserting the driven cylinder. The inner wall of the mounting hole has a first internal thread, and the outer wall of the driven cylinder has an external thread. The external thread engages with the first internal thread.

[0009] According to some embodiments of the present invention, the transmission assembly includes a driving pulley and a driven pulley, a synchronous belt is installed between the driving pulley and the driven pulley, the driving pulley is mounted on the rotary drive member, the driven pulley has a wheel axle hole at its center, the wheel axle hole is used to insert the driven cylinder, the inner wall of the wheel axle hole has a second internal thread, the outer wall of the driven cylinder has an external thread, and the external thread is engaged with the second internal thread.

[0010] According to some embodiments of this utility model, the powder pressing head further includes a shower blade, the powder pressing plate is provided with a water passage for connecting to an external water system; the shower blade is equipped with a connector, the connector is provided with an inner cavity, and the side wall of the connector is provided with a water inlet communicating with the inner cavity. After the connector is installed into the water passage, the inner cavity communicates with the water passage, and the water inlet is located in the space formed between the powder pressing plate and the shower blade.

[0011] According to some embodiments of the present invention, a sealing element is installed between the edge of the shower blade and the bottom edge of the powder pressing plate.

[0012] The first embodiment of this utility model has at least the following beneficial effects: 1. The tamping head includes a tamping plate and a driven cylinder. The tamping plate is installed at the bottom of the driven cylinder, and the inner wall of the driven cylinder is provided with guide ribs. A guide is installed inside the driven cylinder, and the outer wall of the guide is provided with a sliding groove, which has an inclined section. When the tamping head is tamping the coffee powder, the rotary drive unit drives the driven cylinder to rotate, causing the guide ribs to move downwards along the sliding groove, thereby causing the tamping plate in the tamping head to rotate and press the coffee powder downwards, solving the problems of uneven tamping and insufficient compaction in existing tampers.

[0013] 2. The chute also has a straight section, which connects to the upper part of the inclined section. This allows the tamping head to press the coffee powder vertically down first, and then rotate down to enhance the flatness and compaction of the tamping.

[0014] 3. The chute also has a straight section, which connects to the lower part of the inclined section. This allows the tamping head to rotate and press down on the coffee powder first, and then press down vertically to enhance the flatness and compaction of the tamping.

[0015] A second aspect of this utility model provides a coffee machine, including a bracket and a tamper, wherein the guide, the rotary drive, and the transmission assembly are all mounted on the bracket.

[0016] The second embodiment of this utility model has at least the following beneficial effects: The tamping head has an inner cylinder cavity with guide ribs. A guide component is installed in the inner cylinder cavity, and the outer wall of the guide component has a groove with an inclined section. When the tamping head is tamping the coffee powder, the rotary drive component drives the tamping head to move downward, causing the guide ribs to move downward at an angle along the groove. This allows the tamping head to rotate and press the coffee powder downward, improving the flatness and compaction of the coffee powder after tamping, resulting in a better taste of coffee brewed by the coffee machine.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic cross-sectional view of the powder pressing plate at the first position in an embodiment of the present utility model; Figure 2 This is a schematic cross-sectional view of the powder pressing plate at the second position in an embodiment of the present invention; Figure 3 This is a schematic diagram of the powder pressing head explosion according to an embodiment of the present utility model; Figure 4 This is a top view of an embodiment of the present utility model; Figure 5 for Figure 4 Schematic diagram of the AA section; Figure 6 for Figure 5 Enlarged diagram of B in the middle; Figure 7 This is a schematic diagram of one embodiment of the transmission component of this utility model; Figure 8 This is a schematic diagram of the second embodiment of the transmission component of this utility model; Figure 9 This is a top view of the powder pressing head according to an embodiment of the present invention; Figure 10 for Figure 8 Schematic diagram of the CC section; Figure 11 This is a schematic diagram of a sliding groove arrangement according to an embodiment of the present utility model; Figure 12 This is a schematic diagram of the second method of setting the slide groove according to an embodiment of the present utility model. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0021] Reference Figure 1 , 2 A rotary powder press includes a powder pressing head 100, a guide member 200, a rotary drive member 300, and a transmission assembly 400. The powder pressing head 100 has an inner cylinder cavity 101, and the inner wall of the inner cylinder cavity 101 is provided with guide ribs 121. The guide member 200 is installed in the inner cylinder cavity, and the outer wall of the guide member 200 is provided with a sliding groove 210. The guide ribs 121 move along the sliding groove 210. The sliding groove 210 is provided with an inclined section 211, which is wrapped around the outer wall of the guide member 200 and is inclined downward, so that when the powder pressing head 100 presses powder downward, the guide ribs 121 move along the sliding groove 210, and the movement of the guide ribs 121 is downward. The rotary drive member 300 is connected to the powder pressing head 100 through the transmission assembly 400.

[0022] When the coffee powder is not tamped, the tamping plate 110 is in the first position. The rotary drive 300 drives the tamping head 100 to move downward through the transmission assembly 400. As the guide rib 121 moves along the inclined section 211, the tamping head 100 rotates while moving downward, compacting the coffee powder. After compaction, the tamping head 100 reaches the second position, solving the problems of uneven tamping and insufficient compaction in existing tampers.

[0023] Reference Figure 11 , 12 The chute 210 is also provided with a straight section 212, which is set vertically and connects with the inclined section 211, so that the powder pressing head 100 has two movement modes during powder pressing: Method 1: When the guide rib 121 moves along the inclined section 211, the powder pressing head 100 rotates and moves downwards at the same time to achieve rotary powder pressing.

[0024] Method 2: When the guide rib 121 moves along the straight segment 212, the powder pressing head 100 moves vertically downward to achieve vertical powder pressing.

[0025] By combining the two methods described above and adjusting the order of the straight segment 212 and the diagonal segment 211, two combinations of powder pressing actions can be obtained: Combination of tamping action 1: The straight segment 212 is connected above the inclined segment 211, so that when the tamping plate 110 tamps the coffee powder, it first performs vertical tamping, flattening and initially compacting the coffee powder in the extraction hopper; the tamping plate 110 then uses rotation to perform rotational tamping, and finally tamping the coffee powder.

[0026] Combination 2 of tamping action: The straight segment 212 is connected to the lower part of the inclined segment 211, so that when the tamping plate 110 tamps the coffee powder, it first rotates and tamps the coffee powder in the extraction hopper, scrapes and initially compacts the coffee powder; the tamping plate 110 then moves vertically downward, using the impact force generated when moving vertically downward to finally tamp the coffee powder.

[0027] By combining the straight segment 212 and the inclined segment 211, the powder pressing plate 110 can perform rotary powder pressing and vertical powder pressing, and the two powder pressing methods can complement and strengthen each other; so that the powder pressing plate 110 can obtain the best flatness and compaction after using the combination of the above two powder pressing methods and adjusting the order of the two powder pressing methods.

[0028] Reference Figure 9 , 10 The powder pressing head 100 includes a powder pressing plate 110 and a driven cylinder 120. The powder pressing plate 110 is installed at the bottom of the driven cylinder 120. The internal space of the driven cylinder 120 is an inner cylinder cavity 101. The driven cylinder 120 is connected to the transmission assembly 400. A connecting block 130 is fixed on the top surface of the powder pressing plate 110. A buckle 131 is provided on the side wall of the connecting block 130. A slot 123 is opened on the side wall of the bottom end of the driven cylinder 120. The buckle 131 is inserted into the slot 123, so that the powder pressing plate 110 and the driven cylinder 120 can be combined and connected. At the same time, the driven cylinder 120 can be disassembled so that it can be replaced when the external thread 122 is worn.

[0029] Reference Figure 2 , 7The transmission assembly 400 includes a drive gear 410, a double-layer gear 420, and a transmission gear 430. The drive gear 410 is mounted on the rotary drive component 300. The first layer of the double-layer gear 420 meshes with the drive gear 410, and the second layer of the double-layer gear 420 meshes with the transmission gear 430. A mounting hole 431 is provided at the center of the transmission gear 430. The mounting hole 431 is used to insert the driven cylinder 120. The inner wall of the mounting hole 431 is provided with a first internal thread 432, and the outer wall of the driven cylinder 120 is provided with an external thread 122. The external thread 122 is engaged with the first internal thread 432.

[0030] During powder pressing, the rotating drive 300 causes the drive gear 410 to rotate. The drive gear 410 drives the transmission gear 430 to rotate through the double-layer gear 420. Since the driven cylinder 120 and the transmission gear 430 are connected by an external thread 122 and a first internal thread 432, the driven cylinder 120 moves upward and downward relative to the transmission gear 430 during the rotation of the transmission gear 430, causing the powder pressing plate 110 to reciprocate between the first position and the second position.

[0031] Reference Figure 8 The transmission assembly 400 includes a driving pulley 440 and a driven pulley 450. A synchronous belt 460 is installed between the driving pulley 440 and the driven pulley 450. The driving pulley 440 is mounted on the rotary drive component 300. The driven pulley 450 has a wheel axle hole 451 at its center. The wheel axle hole 451 is used to insert the driven cylinder 120. The inner wall of the wheel axle hole 451 has a second internal thread 452. The outer wall of the driven cylinder 120 has an external thread 122. The external thread 122 and the second internal thread 452 are engaged and connected.

[0032] Reference Figures 3 to 5 The tamping head 100 also includes a spray blade 140, which sprays high-pressure hot water evenly into the extraction chamber to improve the coffee extraction effect. A connector 150 is installed on the spray blade 140 to fix the spray blade 140 to the bottom end of the tamping plate 110. At the same time, a space 102 is formed between the spray blade 140 and the tamping plate 110.

[0033] Reference Figure 6 In order to transport high-pressure hot water, a water passage 111 is provided on the powder pressing plate 110. The water passage 111 is used to connect to an external water system.

[0034] To securely install the shower head 140, a connector 150 is installed on the shower head 140 and inserted into the water passage 111.

[0035] To ensure that the water can flow into the space 102 through the water passage 111, the connector 150 is provided with an inner cavity 151. The side wall of the connector 150 has an inlet 152 that communicates with the inner cavity 151. After the shower blade 140 is installed on the tamping plate 110, the inlet 152 is located in the space 102 between the tamping plate 110 and the shower blade 140. This allows the high-pressure hot water in the water passage 111 to enter the cavity 151 and then flow out through the inlet 152 into the space 102. Finally, the high-pressure hot water is evenly sprayed onto the coffee powder in the extraction hopper by the shower blade 140.

[0036] Reference Figure 3 , 5 To ensure airtightness and prevent high-pressure hot water from overflowing from the space 102 between the powder pressing plate 110 and the shower head 140, a sealing element 160 is installed between the edge of the shower head 140 and the bottom edge of the powder pressing plate 110.

[0037] A coffee machine includes a support 103 and a tamper. The tamper is a rotary tamper as described above. The tamper is used to compact the ground coffee powder. A guide 200, a rotary drive 300, and a transmission assembly 400 are all mounted on the support 103, keeping the guide 200 fixed. When the tamper head 100 compacts the coffee powder, the rotary drive 300 drives the driven cylinder 120 to move through the transmission assembly 400. This causes the guide rib 121 to move downwards at an angle along the slide groove 210, thereby causing the tamper plate 110 in the tamper head 100 to rotate and press down on the coffee powder, improving the flatness and compaction of the coffee powder after tamping, resulting in a better taste of the coffee brewed by the coffee machine.

[0038] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.

[0039] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rotary powder accelerator, characterized in that, include: A powder pressing head (100) is provided with an inner cylinder cavity (101), and the inner wall of the inner cylinder cavity (101) is provided with guide ribs (121). A guide member (200) is installed in the inner cylinder cavity. The outer wall of the guide member (200) is provided with a sliding groove (210). The guide rib (121) moves along the sliding groove (210). The sliding groove (210) is provided with an inclined section (211). The inclined section (211) is wrapped around the outer wall of the guide member (200). A rotary drive (300) is connected to the powder pressing head (100) via a transmission assembly (400), and the rotary drive (300) drives the powder pressing head (100) to move up and down via the transmission assembly (400); As the guide rib (121) moves along the inclined section (211), the powder pressing head (100) rotates while moving downward.

2. The rotary powder accelerator according to claim 1, characterized in that, The chute (210) is also provided with a straight section (212), which is connected to the inclined section (211) and is set vertically.

3. The rotary powder accelerator according to claim 2, characterized in that, The straight segment (212) connects above or below the oblique segment (211).

4. The rotary powder accelerator according to claim 1, characterized in that, The powder pressing head (100) includes a powder pressing plate (110) and a driven cylinder (120). The powder pressing plate (110) is installed at the bottom of the driven cylinder (120). The internal space of the driven cylinder (120) is the inner cylinder cavity (101). The driven cylinder (120) is connected to the transmission assembly (400).

5. The rotary powder accelerator according to claim 4, characterized in that, A connecting block (130) is fixed on the top surface of the powder pressing plate (110). A buckle (131) is provided on the side wall of the connecting block (130). A slot (123) is opened on the side wall of the bottom end of the driven cylinder (120). The buckle (131) is inserted into the slot (123).

6. The rotary powder accelerator according to claim 4, characterized in that, The transmission assembly (400) includes a drive gear (410), a double-layer gear (420), and a transmission gear (430). The drive gear (410) is mounted on the rotary drive component (300). The first layer of the double-layer gear (420) meshes with the drive gear (410), and the second layer of the double-layer gear (420) meshes with the transmission gear (430). The transmission gear (430) has a mounting hole (431) at its center. The mounting hole (431) is used to insert the driven cylinder (120). The inner wall of the mounting hole (431) has a first internal thread (432), and the outer wall of the driven cylinder (120) has an external thread (122). The external thread (122) is engaged with the first internal thread (432).

7. The rotary powder accelerator according to claim 4, characterized in that, The transmission assembly (400) includes a driving pulley (440) and a driven pulley (450). A synchronous belt (460) is installed between the driving pulley (440) and the driven pulley (450). The driving pulley (440) is mounted on the rotary drive component (300). The driven pulley (450) has a wheel axle hole (451) at its center. The wheel axle hole (451) is used to insert the driven cylinder (120). The inner wall of the wheel axle hole (451) is provided with a second internal thread (452). The outer wall of the driven cylinder (120) is provided with an external thread (122). The external thread (122) is engaged with the second internal thread (452).

8. The rotary powder accelerator according to claim 4, characterized in that, The powder pressing head (100) also includes a shower blade (140), and the powder pressing plate (110) is provided with a water passage (111), which is used to connect to an external water system; The shower head (140) is equipped with a connector (150), the connector (150) has an inner cavity (151), and the side wall of the connector (150) has a water inlet (152) that communicates with the inner cavity (151). After the connector (150) is installed into the water passage (111), the inner cavity (151) communicates with the water passage (111), and the water inlet (152) is located in the space (102) formed between the powder pressing plate (110) and the shower head (140).

9. The rotary powder accelerator according to claim 8, characterized in that, A sealing element (160) is installed between the edge of the shower blade (140) and the bottom edge of the powder pressing plate (110).

10. A coffee machine, characterized in that, Includes a support (103) and a powder presser, wherein the powder presser is a rotary powder presser as described in any one of claims 1 to 9, and the guide (200), the rotary drive (300), and the transmission assembly (400) are all mounted on the support (103).

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