Power variable-shaft output mechanism of electric extruding machine

Abstract

The invention discloses a power variable shaft output mechanism of an electric extruding machine, which comprises a clamping block, a left clamping plate, a right clamping plate and four linear bearings, and is characterized in that the motion trail of the whole mechanism is fixed on the axes of four optical shaft rails through the constraint of an output shaft clamping mechanism and the four linear bearings; the four parallel axes can balance deflection force borne by the power output plate in other directions, and linear extrusion force output by the linear motor can be replaced on the axis of the output shaft of the non-linear motor to be output. Therefore, when the whole extruder is designed, the external power output point of the whole extruder does not need to be strictly arranged at the center line of the output shaft of the linear motor, and the installation position of the linear motor can be more flexibly arranged relative to the whole extruder, so that the appearance modeling and the whole weight of the whole electric extruder are ensured; and more selectable schemes are provided for the overall size and the like.

Description

Technical Field

[0001] The invention relates to an electric extruder technology, in particular to a mechanism for converting the output power of a linear motor into an output shaft. Background Art

[0002] Mechanical structures that use linear motors to output power to squeeze objects are used in many fields. For example, an electric fruit juicer can use the extrusion force of a linear motor to squeeze fruit to obtain juice. An electric strip cutter can use the extrusion force of a linear motor to squeeze potatoes, radishes, etc. through a grid knife to cut them into strips. An electric water squeezer can use the extrusion force of a linear motor to squeeze Chinese medicinal vegetable fillings to remove the moisture from them.

[0003] However, the extrusion force output by most linear motors is coaxial with the output shaft of the motor. Therefore, the position layout of the output shaft is very demanding when designing the overall structural layout of the machine: the center line of the motor output shaft must be coaxial with the center point of the extruded object. If this condition is not met, the output shaft of the linear motor will be subjected to the offset reaction force from the extruded object which is not on the center line, causing the linear motor to be distorted, the entire machine to deform, collapse, twist, etc., and the machine will be damaged and unable to work. Summary of the invention

[0004] In order to solve the above-described problem, the present invention provides a mechanism for changing the axis output of the extrusion force output by a linear motor. Through the output shaft clamping mechanism and four linear bearing constraints, the linear extrusion force output by the linear motor can be replaced with the output on the axis of the non-linear motor output shaft, and the output position of the extrusion force can be changed without causing mechanical deformation failure, thereby making the design layout of the entire extruder more flexible.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is summarized as follows: the left LMH linear bearing 2-2 and the right LMH linear bearing 2-1 are respectively fixed on the left and right sides of the power output plate 1, and the power output plate 1 is connected to the front ends of the left and right side clamps by screws; a left SCS linear bearing 4-2 is fixed on the side of the tail of the left clamp 3-2, and similarly, a right SCS linear bearing 4-1 is fixed on the side of the tail of the right clamp 3-1, and the left clamp 3-2 and the right clamp 3-2 are clamped by the side clamping screws 8 and the side clamping nuts 5. The clamping block 7 in the clamping block 7 There is a gap between the two ends, which is used for fine-tuning to adapt to the diameter of the clamped linear motor output shaft. After the side clamping screws 8 and the side clamping nuts 5 are tightened, the linear motor output shaft can be firmly clamped. In order to avoid axial displacement between the clamping block 7 and the linear motor output shaft, the center clamping screw 9 passes through the left and right clamping plates, and the center clamping screw 9 also passes through the center holes of the clamping block 7 and the linear motor output shaft. In this way, the center clamping screw 9 firmly connects the left and right clamping plates with the clamping block 7 and the linear motor output shaft, avoiding axial displacement of the clamping block 7 relative to the linear motor output shaft.

[0006] The left LMH linear bearing 2-2, the right LMH linear bearing 2-1, the left SCS linear bearing 4-2, and the right SCS linear bearing 4-1 are respectively located at the four corners of the electric extruder power variable axis output mechanism. The motion trajectories of the four linear bearings are consistent with the center lines of the four optical axes fixed on the machine body, thereby ensuring that the electric extruder power variable axis output mechanism as a whole maintains a fixed motion trajectory relative to the machine as a whole, avoiding the deflection or deformation of the power output plate 1 relative to the machine body after being subjected to the reaction force due to the non-concentric structural arrangement with the clamping block 7.

[0007] The cylindrical output shaft of the linear motor is inserted into the longitudinal circular hole in the middle of the clamping block 7, and a gap is left in the middle of the clamping block 7. The side clamping screws 8 and the side clamping nuts 5 continuously reduce the gap in the middle of the clamping block 7 by tightening, thereby clamping the cylindrical output shaft of the linear motor.

[0008] The radial hole of the cylindrical output shaft of the linear motor and the transverse hole of the clamping block 7 are concentrically connected together through the center clamping screw 9. The center clamping screw 9 and the center clamping nut 6 can not only lock the clamping block 7, but also ensure that there is no axial relative displacement between the clamping block 7 and the output shaft of the linear motor.

[0009] The power output plate 1 is provided with mounting holes, and can be matched with corresponding extrusion heads according to different extrusion scenarios or functions of different machines.

[0010] By utilizing the variable axis power output mechanism of the electric extruder of the present invention, when designing the extruder, it is not necessary to strictly arrange the external power output point of the entire machine at the center line of the linear motor output shaft. The installation position of the linear motor can be arranged more flexibly relative to the entire machine, thereby ensuring that there are more options for the appearance, overall weight, overall volume, etc. of the entire electric extruder. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the right front of the patent structure of the present invention;

[0012] Figure 2 This is a schematic diagram of the upper front part of the patent of this invention;

[0013] Figure 3 This is an exploded view of the various parts of the patent of this invention;

[0014] Figure 4 is a schematic diagram of the clamping block;

[0015] Explanation of the reference numerals: 1. Power output plate; 2-1. LMH linear bearing on the right side; 2-2. LMH linear bearing on the left side; 3-1. Clamping plate on the right side; 3-2. Clamping plate on the left side; 4-1. SCS linear bearing on the right side; 4-2. SCS linear bearing on the left side; 5. Side clamping nut; 6. Center clamping nut; 7. Clamping block; 8. Side clamping screw; 9. Center clamping screw. DETAILED DESCRIPTION

[0016] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0017] The following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1 and Figure 4 The present invention provides a technical solution: there is a longitudinal hole in the middle of the clamping block 7, and the linear motor output shaft is inserted into the longitudinal hole. There is a gap in the middle of the clamping block 7. By tightening the side clamping screw 8 and the side clamping nut 5, the distance of the gap in the middle of the clamping block 7 is reduced, thereby playing the role of clamping the linear motor output shaft. The central clamping screw 9 passes through the left and right side clamps, the clamping block 7, and the transverse hole of the linear motor output shaft, and the three are firmly combined together to avoid deflection or deformation.

[0019] See also Figure 2 The four linear bearings are respectively located at the four corners of the power variable axis output mechanism of the electric extruder. The central axes of the four linear bearings are parallel to each other. The four linear bearings are respectively inserted into the four parallel optical axes fixed on the machine, so that the motion trajectory of the entire mechanism is limited within the axes of the four parallel optical axes. The four parallel optical axes are fixed relative to the main body of the machine and will not be deformed or offset. When the power output plate 1 is subjected to an external reaction force, it can be ensured that the entire variable axis mechanism will not be deformed or offset relative to the main body of the machine, thereby playing a role in moving the power output of the linear motor to other central axes without deformation or offset of the machine.

[0020] See also Figure 3 The power output board 1 is equipped with mounting holes to match different extrusion heads. Different extrusion heads can be replaced according to different machine functions or different usage scenarios. The extrusion heads can be replaced by disassembling and assembling the screws located on the power output board 1.

[0021] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. The power variable shaft output mechanism of the electric extruder is characterized by: include: The left LMH linear bearing 2-2 and the right LMH linear bearing 2-1 are fixed on the left and right sides of the power output plate 1 respectively. The power output plate 1 is connected to the front ends of the left and right clamping plates by screws; the left SCS linear bearing 4-2 is fixed on the side of the tail of the left clamping plate 3-2, and the right SCS linear bearing 4-1 is fixed on the side of the tail of the right clamping plate 3-1. The left clamping plate 3-2 and the right clamping plate 3-2 are clamped by the side clamping screws 8 and the side clamping nuts 5. The clamping block 7 has a gap in the middle for fine-tuning to adapt to the clamping plate. After the diameter of the linear motor output shaft is clamped and the side clamping screws 8 and the side clamping nuts 5 are tightened, the linear motor output shaft can be firmly clamped. To avoid axial displacement between the clamping block 7 and the linear motor output shaft, the center clamping screw 9 passes through the left and right clamping plates, and the center clamping screw 9 also passes through the center holes of the clamping block 7 and the linear motor output shaft. In this way, the center clamping screw 9 firmly connects the left and right clamping plates with the clamping block 7 and the linear motor output shaft, avoiding axial displacement of the clamping block 7 relative to the linear motor output shaft.

2. The power variable shaft output mechanism of the electric extruder according to claim 1, characterized in that: The left LMH linear bearing 2-2, the right LMH linear bearing 2-1, the left SCS linear bearing 4-2, and the right SCS linear bearing 4-1 are respectively located at the four corners of the power variable axis output mechanism of the electric extruder. The motion trajectories of the four linear bearings are consistent with the center lines of the four optical axes fixed on the machine body, thereby ensuring that the power variable axis output mechanism of the electric extruder maintains a fixed motion trajectory relative to the machine as a whole, avoiding the deflection or deformation of the power output plate 1 relative to the machine body after being subjected to the reaction force due to the non-concentric structural arrangement with the clamping block 7.

3. The power variable shaft output mechanism of the electric extruder according to claim 1, characterized in that: The cylindrical output shaft of the linear motor is inserted into the longitudinal circular hole in the middle of the clamping block 7. A gap is left in the middle of the clamping block 7. The side clamping screws 8 and the side clamping nuts 5 continuously reduce the gap in the middle of the clamping block 7 by tightening, thereby clamping the cylindrical output shaft of the linear motor.

4. The power variable shaft output mechanism of the electric extruder according to claim 1, characterized in that: The radial hole of the cylindrical output shaft of the linear motor and the transverse hole of the clamping block 7 are concentrically connected together through the center clamping screw 9. The center clamping screw 9 and the center clamping nut 6 can not only lock the clamping block 7, but also ensure that there is no axial relative displacement between the clamping block 7 and the output shaft of the linear motor.

5. The power variable shaft output mechanism of the electric extruder according to claim 1, characterized in that: The power output plate 1 is provided with mounting holes, and corresponding extrusion heads can be matched according to different extrusion scenarios or functions of different machines.

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