WO2018068472A1

WO2018068472A1 - Piercing mechanism and beverage brewing apparatus

Info

Publication number: WO2018068472A1
Application number: PCT/CN2017/075836
Authority: WO
Inventors: 郭建刚; 熊江华; 陈朝明
Original assignee: 广东新宝电器股份有限公司
Priority date: 2016-10-14
Filing date: 2017-03-07
Publication date: 2018-04-19

Abstract

A piercing mechanism and a beverage brewing apparatus. The piercing mechanism comprises a body (1) and, provided on the body (1), a piercing component and a funnel component (2). The piercing component comprises a piercing needle (3). The funnel component (2) comprises a capsule (4) arranged below the piercing needle (3) and a lower piercing needle (5) provided below the capsule (4). The piercing mechanism also comprises a motor (6) and a pinion (8) connected to the motor (6) via a shaft (7). The piercing component also comprises a rack (9) meshed with the pinion (8). The piercing needle (3) is provided below the rack (9). When the motor (6) drives the shaft (7) to rotate in the forward direction, the rack (9) drives the piercing needle (3) to move downwards, the piercing needle (3) pierces the capsule (4), and the capsule (4) is driven to move downwards to be pierced by the lower piercing needle (5); or when the motor (6) drives the shaft (7) to rotate in the reverse direction, the rack (9) moves upwards, the piercing needle (3) is driven to move upwards and away from the capsule (4). By utilizing the pinion (8) and the rack (9) jointly to pierce the capsule (4), forces are evenly applied to the capsule (4) and thus do not easily incur package bursting; the structure is simple and control is reliable.

Description

Puncture mechanism and beverage brewing device

Technical field

The invention relates to the field of white goods, in particular to a puncture mechanism and a beverage brewing device.

Background technique

The existing K-CUP beverage brewing device generally uses a manual pressing to assist in piercing a capsule containing a beverage powder, and presses the brewing water into a capsule to prepare a beverage. A single-cup beverage brewer comprising a capsule, a tubular water-discharging needle disposed at the bottom of the capsule, and a pressure plate with elastic means for carrying a water needle on the pressure plate and driving the pressure plate by manually pressing the handle, as disclosed in US Pat. No. 6,660,938 B2. Up and down, the water needle passes through the water outlet end of the capsule and then enters the water inlet end of the capsule. The structure of the brewer requires high hardness of the capsule. If the capsule shell is soft, the capsule shell cannot be worn by the needle, resulting in a beverage failure. In addition, the manual pressing assists in piercing the capsule shell, which is time consuming and laborious, and the hand feel is not good. When pressed manually, the stability is not good, the capsule shell is not evenly stressed, resulting in poor puncture, which may easily cause the capsule to burst.

Summary of the invention

The present invention provides a puncture mechanism and a beverage brewing device for solving the problems that occur in prior art manual presses to puncture a capsule shell.

In order to solve the above problems, the present invention provides a piercing mechanism including a body and a piercing assembly and a funnel assembly disposed on the body, the piercing assembly including a piercing needle, the funnel assembly including Puncture a capsule below the needle and a lower puncturing needle disposed under the capsule, the puncturing mechanism further comprising a motor and a gear coupled to the motor through a shaft; the piercing assembly further comprising engaging the gear a gear bar, the piercing needle is disposed under the gear bar; when the motor drives the shaft to rotate in a forward direction, the gear bar drives the piercing needle to move downward, the piercing needle Breaking the capsule and the capsule Being driven downward to be punctured by the lower puncturing needle, or when the motor drives the shaft to rotate in the reverse direction, the gear bar moves upward, and the punctured needle is driven upward to move away from the capsule.

Preferably, the puncturing mechanism further includes a cam and a first micro switch, a second micro switch and a control circuit board disposed in the main body, the cam is fixedly disposed on the shaft; The shaft rotates in a forward direction. When the cam touches the first micro switch, the control circuit board receives a first signal of the first micro switch and controls the motor to stop rotating. The shaft rotates in the reverse direction. When the cam touches the second switch, the control circuit board receives the second signal of the second micro switch and controls the motor to stop rotating. By controlling the cooperation between the circuit board and the micro switch, the action of the puncture mechanism can be automatically controlled, the control position is accurate, and the control is reliable.

Preferably, the funnel assembly is slidably coupled to the body. It is convenient for the user to replace the capsule.

Preferably, the main body is provided with a convex portion for guiding, and the funnel assembly is provided with a groove portion matching the convex portion. The raised portion and the groove portion are provided for convenient processing and simple structure.

Preferably, the piercing assembly further comprises a gasket sleeved outside the piercing needle, the gasket sealing the chamber after the piercing needle moves downward to pierce the upper diaphragm of the capsule The pinholes on the diaphragm are described. By providing a gasket, it is possible to seal the liquid flow path during the subsequent brewing process.

Preferably, the piercing assembly further includes a gasket sleeved outside the piercing needle, the gasket pressing against a circumference of the upper diaphragm when the piercing needle enters the capsule. By providing a gasket, the capsule is further sealed and the upper diaphragm of the capsule can be prevented from being deformed by pulling or preventing the capsule from bursting.

Preferably, the capsule comprises an inner capsule shell and an outer capsule shell, a cavity is formed between the inner capsule shell and the outer capsule shell, and the lower punctured needle is broken when the lower puncturing needle pierces the capsule The needle head is located within the cavity. By providing the inner capsule shell and the outer capsule shell, the liquid in the brewing process and the beverage powder can be first mixed in the cavity of the capsule shell, and the mixing is more uniform.

Preferably, the inner capsule shell is a filter paper. Make liquid and inner capsule by setting filter paper The beverage powder in the cavity of the shell is extracted during the brewing process.

The invention also discloses a beverage brewing device comprising the above-mentioned piercing mechanism.

Preferably, the beverage brewing device is a capsule coffee machine. In the capsule coffee machine of the present invention, when the coffee capsule is punctured, the coffee capsule is evenly stressed, and it is not easy to burst, and the overall structure of the capsule coffee machine is simple.

Compared with the prior art, the puncture mechanism and the beverage brewing device of the present invention have the beneficial effects that the puncture mechanism of the present invention does not need to manually press the puncture capsule, but uses the cooperation of the gear and the gear bar to pierce the capsule, and the capsule is subjected to the capsule. The force is uniform, and it is not easy to cause the bursting of the capsule; the puncture mechanism of the invention can easily pierce the capsule, and the hardness of the outer shell of the capsule is not high; the structure is simple and the control is reliable.

DRAWINGS

Figure 1 is an exploded perspective view of the beverage brewing device of the present invention;

Figure 2 is a cross-sectional view of the funnel assembly of the beverage brewing device of the present invention;

Figure 3 is a front cross-sectional view of the first state of Figure 1 (i.e., both the punctured needle and the lower punctured needle are not punctured);

Figure 4 is a side cross-sectional view of the first state of Figure 1 (i.e., both the punctured needle and the lower punctured needle are not punctured);

Figure 5 is a front cross-sectional view of the second state of Figure 1 (i.e., the piercing needle pierces the capsule, and the lower piercing needle does not pierce the capsule);

Figure 6 is a side cross-sectional view of the second state of Figure 1 (i.e., the puncturing needle piercing the capsule and the lower puncturing needle not puncturing the capsule);

Figure 7 is a front cross-sectional view of the third state of Figure 1 (i.e., both the punctured needle and the lower punctured needle pierce the capsule);

Figure 8 is a side cross-sectional view of the third state of Figure 1 (i.e., both the piercing needle and the lower puncture needle pierce the capsule).

DESCRIPTION OF REFERENCE NUMERALS: 1-body; 2-funnel assembly; 3-punctured needle; 4-capsule; 5--punch needle; 6-first motor; 7-first shaft; 8--gear; Strip; 10 - first micro switch; 11 - second micro switch; 12 - cam; 13 - gasket; 14 - washer; 15 - inner capsule shell; Outer capsule shell; 17-upper diaphragm; 18-funnel housing; 19-bubble head; 20-buffer apron; 21-second motor; 22-second shaft; 23-switch cam; Moving switch; 25-fourth micro switch; 26-first jack; 27-second jack; 28-inlet; 29-first outlet; 30-second outlet; 31-electromagnetic pump; .

detailed description

The invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

1 is an exploded perspective view of a beverage brewing device of the present invention, and FIG. 2 is a cross-sectional view of a funnel assembly of the beverage brewing device of the present invention. As shown in FIGS. 1 and 2, the beverage brewing device of the present invention includes a piercing mechanism including a body 1 and a piercing assembly and a funnel assembly 2 disposed on the body 1. The hopper assembly 2 shown in Fig. 2 comprises a capsule 4 and a lower lancet 5 disposed below the capsule 4, wherein the lower lancet 5 can be fixedly disposed within the hopper housing 18 of the hopper assembly 2, the capsule 4 being snapped onto the funnel On the housing 18.

The piercing mechanism also includes a first motor 6 and a gear 8 coupled to the first motor 6 via a first shaft 7, wherein the gear 8 may be a partial gear. The piercing assembly comprises a piercing needle 3 and a gear strip 9 that meshes with a gear 8 which is disposed below the gear bar 9 and above the capsule 4. The piercing needle 3 can be fixedly arranged on the brewing head 19, and the gear strip 9 is fixedly connected to the brewing head 19 via the cushion rubber ring 20.

When the first motor 6 rotates in the forward direction (for example, clockwise rotation when viewed from left to right in FIG. 1), the first shaft 7 drives the gear 8 to also rotate in the forward direction, and the gear bar 9 is biased under the force of the gear 8. In the lower movement, the piercing needle 3 pierces the capsule 4, and the capsule 4 is subjected to a downward force to move downward, and the lower piercing needle 5 pierces the capsule 4. When the first motor 6 rotates in the reverse direction (for example, counterclockwise rotation when viewed from left to right in FIG. 1), the first shaft 7 drives the gear 8 to also rotate in the reverse direction, and the gear bar 9 moves upward under the action of the gear 8. The piercing needle 3 is driven upward to move away from the capsule 4.

The puncture mechanism of the present invention does not need to manually press the puncture capsule 4, but pierces the capsule 4 by the cooperation of the gear 8 and the gear bar 9. The capsule 4 is evenly stressed, and the bursting of the capsule 4 is not easily caused. Further, the puncture mechanism of the present invention can easily pierce the capsule 4, and the hardness of the outer casing of the capsule 4 is not high.

1 and 2, the puncturing mechanism of the present invention further includes a cam 12 and a first micro switch 10, a second micro switch 11 and a control circuit board disposed in the main body 1, and the cam 12 can be fixedly disposed at the first One axis 7 is on. When the first shaft 7 rotates in the forward direction (clockwise rotation as described above), the cam 12 also rotates forward with the first shaft 7, the cam 12 touches the first micro switch 10, and the control circuit board can receive the first micro The first signal of the switch 10 is controlled and the first motor 6 is controlled to stop rotating according to the first signal, so that the gear bar 9 stops moving downward. When the first shaft 7 rotates in the reverse direction (counterclockwise rotation as described above), the cam 12 rotates in the reverse direction with the first shaft 7, the cam 12 touches the second micro switch 11, and the control circuit board can receive the second jog The second signal of the switch 11 controls the first motor 6 to stop rotating according to the second signal. By controlling the cooperation of the circuit board and the micro switch, the action of the puncture mechanism can be automatically controlled.

Figure 3 is a front cross-sectional view of the first state of Figure 1 (i.e., the punctured needle and the lower punctured needle are not punctured capsules), and Figure 4 is the first state of Figure 1 (i.e., the punctured needle and the lower punctured needle) FIG. 5 is a front cross-sectional view of the second state of FIG. 1 (ie, the punctured needle piercing capsule and the lower punctured needle not punctured capsule), and FIG. 6 is the first section of FIG. A side cross-sectional view of the second state (ie, the piercing needle pierces the capsule, and the lower pierced needle does not pierce the capsule), and FIG. 7 is the third state of FIG. 1 (ie, the piercing needle and the lower piercing needle both pierce the capsule) Fig. 8 is a side cross-sectional view of the third state of Fig. 1 (i.e., the piercing needle and the lower puncturing needle both pierce the capsule). The operation process of the puncture mechanism of the present invention will be specifically described below with reference to Figs.

As shown in Fig. 3 and Fig. 4, before the puncturing mechanism starts to operate, the puncturing needle 3 is located above the capsule 4, the lower puncturing needle 5 is located below the capsule 4, and the puncturing needle 3 and the lower puncturing needle 5 are not punctured. Broken capsule 4, that is, in the first state. When the control circuit board receives the user's command, the control circuit board controls the first motor 6 to rotate forward, and the gear bar 9 drives the puncturing needle 3 to move downward and pierces the capsule 4, as shown in FIG. 5 and FIG. Only the punctured needle 3 pierces the capsule 4, and the lower punctured needle 5 is located below the capsule 4, that is, in the second state. As the gear strip 9 continues to move downward, the capsule 4 is subjected to a downward force, and as the housing of the capsule 4 has elasticity, it continues to move downwardly within the funnel housing 18, and the lower puncturing needle 5 pierces the capsule 4, such as Figure 7 and As shown in Fig. 8, at this time, both the puncturing needle 3 and the lower puncturing needle 5 pierce the capsule 4, that is, in the third state.

When the puncturing needle 5 pierces the capsule 4, the cam 12 that rotates forward with the first shaft 7 activates the first microswitch 10, so that the control circuit board can control the first motor 6 to stop rotating.

When the first motor 6 drives the first shaft 7 to rotate in the reverse direction, the gear bar 9 moves upward and drives the puncturing needle 3 to move upward. When the puncturing needle 3 returns to the original position, the cam 12 rotates in the reverse direction with the first shaft 7. The second micro switch 11 is activated so that the control circuit board can control the first motor 6 to stop rotating.

As shown in FIG. 1, in the present embodiment, the funnel assembly 2 is slidably coupled to the main body 1. Specifically, the funnel assembly 2 can be pushed and pulled to expose the capsule 4 for the user to replace the capsule 4. For example, the main body 1 is provided with a convex portion for guiding, and the funnel unit 2 is correspondingly provided with a groove portion matching the convex portion. The convex portion and the groove portion are convenient to process and simple in structure.

In this embodiment, the piercing assembly further includes a gasket 13 sleeved outside the piercing needle 3. After the piercing needle 3 moves downward to pierce the upper diaphragm 17 of the capsule 4, the gasket 13 seals the upper membrane 17 The pinhole on the upper side, so that the liquid flow path can be sealed during the subsequent brewing process.

In this embodiment, in order to further achieve the sealing, the piercing assembly further includes a gasket 14 sleeved outside the piercing needle 3, and the gasket 14 is made of a silicone rubber material. Since the upper diaphragm 17 is pressed by the gasket 13 to cause deformation of the upper diaphragm 17 from the capsule 4, by providing the gasket 14, the piercing needle 3 enters the capsule 4 and the gasket 14 is pressed against the circumference of the upper diaphragm 17 The above situation can be avoided, thereby preventing the explosion of the package.

As shown in FIG. 2, in the present embodiment, the capsule 4 includes an inner capsule shell 15 and an outer capsule shell 16, and a cavity is formed between the inner capsule shell 15 and the outer capsule shell 16. As shown in Fig. 8, when the lower piercing needle 5 pierces the capsule 4, the needle head of the lower piercing needle 5 is located in the cavity. The beverage powder is generally placed in the cavity of the capsule shell 15. By providing the inner capsule shell 15 and the outer capsule shell 16, the liquid in the brewing process and the beverage powder can be mixed and mixed in the cavity of the capsule shell 15 first. More even.

The inner capsule shell 15 may be a filter paper, and the beverage mixed in the inner capsule shell 15 flows out of the capsule 4 through the filter paper.

The invention also discloses a beverage brewing device, comprising the above-mentioned piercing mechanism and a liquid path mechanism. As shown in FIG. 1, the liquid path mechanism includes a second motor 21, a switch cam 23 connected to the second motor 21 via the second shaft 22, a first jack 26, and a second jack 27. When the puncturing needle 3 and the lower puncturing needle 5 pierce the capsule 4 (as shown in FIG. 8), the second motor 21 rotates in the forward direction (clockwise rotation when viewed from left to right in FIG. 1), thereby driving The second shaft 22 and the switch cam 23 coupled to the second shaft 22 rotate forwardly, and the switch cam 23 projects the first jack 26 downward so that the inlet 28 and the first outlet 29 are in an open state. The liquid path mechanism further includes an electromagnetic pump 31 and a heat generating port 32. When the inlet 28 and the first outlet 29 are opened, the electromagnetic pump 31 operates to pump the liquid into the heat generating port 32 for heating, and the heated liquid enters from the inlet 28 and passes through the first The outlet 29 enters a line formed between the gear bar 9 and the puncturing needle 3, and the heated liquid flows into the capsule 4 to brew the beverage powder. When the switch cam 23 touches the third micro switch 24, the control circuit board receives the third signal of the third micro switch 24 and controls the second motor 21 to stop rotating.

When the beverage brewing is completed, the electromagnetic pump 31 stops working, and the second motor 21 drives the switch cam 23 to rotate in the reverse direction (counterclockwise rotation when viewed from left to right in FIG. 1), and the switch cam 23 will move the second jack 27 Downwardly, the inlet 28 and the second outlet 30 are in an open state, at which time drainage relief is performed. The first jack 26 is moved upward by the spring force of the spring that is pressed against one end thereof, and the first jack 26 is moved upward, and the inlet 28 and the first outlet are closed. When the switch cam 23 touches the fourth micro switch 25, the control circuit board receives the fourth signal of the fourth micro switch 25 and controls the second motor 21 to stop rotating. Thereafter, the first motor 6 rotates in the reverse direction as described above.

In the present embodiment, the beverage brewing device may be a capsule coffee machine in which the coffee capsule is contained in the cavity of the inner capsule shell 15 and the brewing liquid is water.

The above embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the invention, and the scope of the invention is defined by the claims. A person skilled in the art can make various modifications or equivalents to the invention within the spirit and scope of the invention, and such modifications or equivalents are also considered to fall within the scope of the invention.

Claims

A piercing mechanism includes a body and a piercing assembly and a funnel assembly disposed on the body, the piercing assembly including a piercing needle, the funnel assembly including a capsule positioned below the piercing needle and disposed at The lower puncture needle below the capsule,

Characterizing in that the piercing mechanism further comprises a motor and a gear connected to the motor through a shaft;

The piercing assembly further includes a gear bar that meshes with the gear, the piercing needle being disposed below the gear bar;

When the motor drives the shaft to rotate in the forward direction, the gear bar drives the puncturing needle to move downward, the puncturing needle pierces the capsule, and the capsule is driven to move downward Describe the puncture needle piercing,

Or when the motor drives the shaft to rotate in the reverse direction, the gear bar moves upward, and the piercing needle is driven to move upward away from the capsule.
The puncturing mechanism according to claim 1, wherein said puncturing mechanism further comprises a cam and a first micro switch, a second micro switch, and a control circuit board disposed in said main body, said cam Fixedly disposed on the shaft;

The cam rotates in a forward direction with the axis, and when the cam touches the first micro switch, the control circuit board receives a first signal of the first micro switch and controls the motor to stop rotating,

The cam rotates in reverse with the shaft. When the cam touches the second switch, the control circuit board receives the second signal of the second micro switch and controls the motor to stop rotating.
The piercing mechanism of claim 2 wherein said funnel assembly is slidably coupled to said body.
The puncturing mechanism according to claim 3, wherein the main body is provided with a convex portion for guiding, and the funnel assembly is provided with a groove portion matching the convex portion.
The puncturing mechanism according to claim 2, wherein said puncturing assembly further comprises a gasket sleeved outside said puncturing needle, said puncturing needle puncturing downwardly After the upper diaphragm of the capsule, the gasket is capable of sealing the pinholes on the upper diaphragm.
The puncturing mechanism according to claim 5, wherein said puncturing assembly further comprises a gasket sleeved outside said puncturing needle, said gasket being pressed after said puncturing needle enters said capsule The circumference of the upper diaphragm.
The puncturing mechanism according to claim 1, wherein said capsule comprises an inner capsule shell and an outer capsule shell, and a cavity is formed between said inner capsule shell and said outer capsule shell, said punctured when said When the needle is punctured, the needle head of the lower punctured needle is located within the cavity.
The piercing mechanism according to claim 7, wherein the inner capsule shell is a filter paper.
A beverage brewing device comprising the piercing mechanism of any of claims 1-8.
A beverage brewing device according to claim 9, wherein the beverage brewing device is a capsule coffee machine.