CN-122004652-A - Coffee machine

CN122004652ACN 122004652 ACN122004652 ACN 122004652ACN-122004652-A

Abstract

The application relates to a coffee machine, which realizes the decoupling of the movement travel under single driving by arranging an over-travel transmission mechanism between a movable extraction head and a bag guiding main body and combining the physical limit of a machine body. The mechanism utilizes an elastic yielding mechanism to enable the clamping part to be switched between different positioning grooves, so that the bag guiding main body generates relative displacement at a specific stage, and the physical interference of the supporting part on the falling path of the coffee bag is eliminated. The locking structure of the sliding groove convex strips and the hook parts is matched, so that the action time sequence is optimized while the transmission stability and the anti-drop performance are enhanced, the system complexity is reduced through simplified mechanical connection, the reliability of free falling of the waste coffee bag by means of dead weight is ensured, and the failure rate of the whole machine is reduced.

Inventors

SHEN LEI
CUI CHAOCHAO
ZHOU YANG
Francesco Blankenor
Maulo Manuta

Assignees

宁波皓达电器有限公司

Dates

Publication Date: 20260512
Application Date: 20260309

Claims (10)

1. The coffee machine is characterized by comprising a machine body, a movable extraction head, a fixed head and a bag guiding main body; The machine body is provided with a limiting part for limiting the displacement of the guide pack main body; The movable extraction head is connected with a transmission connecting rod, and the transmission connecting rod is in transmission connection with the bag guiding main body through an over-travel transmission mechanism; the over-travel transmission mechanism is provided with a first transmission position and a second transmission position; The movable extraction head drives the guide pack main body to move through the transmission connecting rod; Under the state that the bag guiding main body stops moving due to the blocking of the limiting part, the movable extraction head continues to move due to the driving force so as to force the over-travel transmission mechanism to switch between the first transmission position and the second transmission position, and the movable extraction head generates an over-travel displacement relative to the bag guiding main body.
2. The coffee machine of claim 1, wherein the over-travel transmission mechanism comprises a guide groove arranged on the transmission connecting rod, and an elastic arm arranged on the guide pack main body and extending into the guide groove; a first positioning groove and a second positioning groove are formed in the inner side wall of the guide groove at intervals along the length direction of the transmission connecting rod, and the first positioning groove and the second positioning groove correspond to the first transmission position and the second transmission position respectively; the elastic arm is provided with a clamping part, and the elastic arm has an elastic trend of tensioning towards the inner side wall of the guide groove, so that the clamping part is elastically propped against the first positioning groove or the second positioning groove.
3. The coffee machine of claim 2, wherein the guide groove is a hollow long groove formed in the middle of the transmission connecting rod, and the first positioning groove and the second positioning groove are symmetrically arranged on inner walls of two opposite sides of the hollow long groove; the elastic arms are oppositely arranged, the two elastic arms extend into the hollow long groove together, and a deformation space for the elastic arms to retract inwards and deform is arranged between the two elastic arms.
4. The coffee machine of claim 2, wherein the guide groove is provided with a raised line extending along the length direction, and the first positioning groove and the second positioning groove are arranged on the raised line at intervals; the elastic arm is provided with a chute which is in sliding fit with the convex strip, and the clamping part is convexly arranged on the bottom wall of the chute and extends towards the convex strip.
5. The coffee machine as recited in claim 4 wherein the resilient arm further includes a hook portion extending from an edge of the chute and beyond the rib to hook onto a side wall of the rib facing away from the resilient arm body.
6. The coffee machine of claim 5, wherein the hook portion is provided with an assembling slope at an end remote from the elastic arm body, the assembling slope being inclined toward an inlet direction of the guide groove.
7. The coffee machine of claim 2, wherein the limiting part comprises a guiding long groove which is arranged on the machine body and extends along the length direction of the transmission connecting rod, and a sliding block which is convexly arranged on the side wall of the guide pack main body and extends into the guiding long groove; the two ends of the guide long groove in the length direction are respectively provided with a first stop end wall and a second stop end wall; in a state that the sliding block abuts against the first stop end wall or the second stop end wall, the displacement of the guide pack main body is limited, so that power for forcing the clamping part to be separated from the current positioning groove and slide to the other positioning groove is provided.
8. The coffee machine of claim 7, wherein the side wall of the guide pack body is further provided with an antifriction protrusion, the antifriction protrusion is located between the slider and the elastic arm, and the antifriction protrusion abuts against the inner wall of the machine body during movement of the guide pack body, so that a gap is maintained between the side wall of the guide pack body and the inner wall of the machine body.
9. The coffee machine as recited in claim 1, wherein the bag guide body is provided with a support portion for supporting a bottom of the coffee bag; and in a state that the movable extraction head moves forward and the bag guiding main body stops moving, the over-travel transmission mechanism is switched from the first transmission position to the second transmission position, and the movable extraction head moves relative to the bag guiding main body and passes over the supporting part.
10. The coffee machine of claim 9, wherein in a state in which the movable extraction head is reversely reset and the bag guide body stops moving, the movable extraction head is displaced relative to the bag guide body to drive the over-travel transmission mechanism to switch from the second transmission position back to the first transmission position.

Description

Coffee machine Technical Field The application relates to the technical field of household appliances, in particular to a coffee machine. Background In the automatic operation process of the coffee machine, the coffee package is accurately guided to the extraction position, and the extracted waste coffee package is ensured to fall down, so that the method is a key link for reducing the failure rate of the whole machine and improving the user experience. In the prior art, the guide structure is generally divided into a fixed type and a follow-up type. The fixed bag guiding frame is always arranged below the coffee bag in the bag removing process by virtue of the supporting structure, so that continuous physical interference is formed on the waste bag falling by gravity, and the wet and hot waste bag is extremely easy to cause clamping stagnation due to adhesion or blocking. While the follow-up bag guiding frame can synchronously move along with the extraction assembly, a rigid transmission structure is mostly adopted. Under the rigid connection mode, the displacement stroke of the bag guiding main body and the movable extraction head is completely locked, and relative displacement cannot be generated in a specific action stage, such as closing and compressing moment of the extraction head or resetting and bag removing moment, so that the bag guiding structure cannot be evacuated in advance to thoroughly avoid a falling path of the waste bag. In order to realize the decoupling of complex action sequences, the traditional scheme often needs to introduce additional driving elements or multi-stage complex mechanical connecting rods, which not only remarkably increases the production and maintenance cost of the whole machine, but also reduces the compactness and operation reliability of the mechanical structure. Disclosure of Invention In order to solve the above problems, the present application provides a coffee machine that eliminates physical interference of a pod structure with a pod falling process while simplifying a system configuration. In order to achieve the above purpose, the coffee machine of the application comprises a machine body, a movable extraction head, a fixed head and a bag guiding main body; The machine body is provided with a limiting part for limiting the displacement of the guide pack main body; The movable extraction head is connected with a transmission connecting rod, and the transmission connecting rod is in transmission connection with the bag guiding main body through an over-travel transmission mechanism; the over-travel transmission mechanism is provided with a first transmission position and a second transmission position; The movable extraction head drives the guide pack main body to move through the transmission connecting rod; Under the state that the bag guiding main body stops moving due to the blocking of the limiting part, the movable extraction head continues to move due to the driving force so as to force the over-travel transmission mechanism to switch between the first transmission position and the second transmission position, and the movable extraction head generates an over-travel displacement relative to the bag guiding main body. Preferably, the over-travel transmission mechanism comprises a guide groove arranged on the transmission connecting rod and an elastic arm arranged on the guide bag main body and extending into the guide groove; a first positioning groove and a second positioning groove are formed in the inner side wall of the guide groove at intervals along the length direction of the transmission connecting rod, and the first positioning groove and the second positioning groove correspond to the first transmission position and the second transmission position respectively; the elastic arm is provided with a clamping part, and the elastic arm has an elastic trend of tensioning towards the inner side wall of the guide groove, so that the clamping part is elastically propped against the first positioning groove or the second positioning groove. Preferably, the guide groove is a hollow long groove formed in the middle of the transmission connecting rod, and the first positioning groove and the second positioning groove are symmetrically arranged on inner walls of two opposite sides of the hollow long groove; the elastic arms are oppositely arranged, the two elastic arms extend into the hollow long groove together, and a deformation space for the elastic arms to retract inwards and deform is arranged between the two elastic arms. Preferably, the inner side wall of the guide groove is provided with a raised line extending along the length direction of the guide groove, and the first positioning groove and the second positioning groove are arranged on the raised line at intervals; the elastic arm is provided with a chute which is in sliding fit with the convex strip, and the clamping part is convexly arranged on the bottom wall of the chute and extends toward