Stroke limiting device for powder mixer

Abstract

The utility model relates to a stroke limiting device of a powder mixer, and belongs to the technical field of mixers. Comprising a shell, a fixed shaft and a sliding support pillar, and the fixed shaft is arranged in the shell; the top end of the fixing shaft is fixed to the upper end of the shell. The sliding support pillar is connected to the lower portion of the fixing shaft in a sliding mode, the bottom end of the sliding support pillar extends out of the shell, and the sliding support pillar can move up and down along the fixing shaft. According to the utility model, the sliding support pillar can move up and down along the fixed shaft to trigger the travel switch, so that the travel switch generates a signal to control the mixer to stop descending; and the whole movement of the stroke limiting device is completed in the shell, so that any object outside the shell is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of mixers, in particular to a travel limiting device for a powder mixer. Background Art

[0002] Mixers are mainly used in the mixing and processing of materials. At present, in the process of mixing materials, the fully automatic lifting mixer in the industry hits the mixer frame during the forward pushing process, causing the mixer frame to shake back and forth, causing the front and rear lower limit travel switches to hit the ground, and the lower limit travel switch ejector pin exceeds the limit position and hits the travel switch wiring, causing the lower limit travel switch ejector pin to not rebound and the travel switch wiring to break, causing the equipment to stop and be unable to operate. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a stroke limit device for a powder mixer. The technical problem to be solved is to provide a stroke limit device which can move up and down along a fixed axis through a sliding top column to trigger a stroke switch, so that the stroke switch generates a lower limit signal, thereby controlling the mixer to stop descending; and the entire movement of the stroke limit device is completed within the shell, and will not affect any object outside the shell.

[0004] To achieve the above-mentioned purpose, the utility model provides a stroke limit device for a powder mixer, comprising a shell, a fixed shaft and a sliding top column, wherein the fixed shaft is arranged in the shell; the top end of the fixed shaft is fixed to the upper end of the shell; the sliding top column is slidably connected to the lower part of the fixed shaft, the bottom end of the sliding top column extends out of the shell, and the sliding top column can move up and down along the fixed shaft.

[0005] Furthermore, a pressing block is arranged on the top of the shell, and the pressing block is fixedly connected to the top end of the fixed shaft.

[0006] Furthermore, the interior of the sliding top column is a hollow cylindrical structure, and the exterior of the sliding top column is an inclined structure that is narrow at the top and wide at the bottom.

[0007] Furthermore, a spring is sleeved on the fixed shaft, and the spring extends into the interior of the sliding top column, and the lower end of the spring abuts against the step surface inside the sliding top column.

[0008] The beneficial technical effects achieved by the utility model are:

[0009] By using the sliding top column to move up and down along the fixed axis, the inclined surface of the sliding top column triggers the power-off effect of the travel switch, thereby controlling the mixer to stop descending and preventing the mixer frame from hitting the ground;

[0010] The sliding top column moves up and down along the fixed axis, and the shaking of the mixer frame will not cause the sliding top column to exceed the position and affect other objects outside the shell;

[0011] By making the sliding top column move up and down along the fixed shaft, and a spring is sleeved on the fixed shaft, the upper limit of the upward movement of the sliding top column can be determined by the length of the fixed shaft, preventing the sliding top column from exceeding the limit position after touching the ground;

[0012] The entire movement of the travel limit device is completed within the housing and will not affect any objects outside the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a front sectional view of a travel limit device for a powder mixer according to the utility model;

[0014] Figure 2 This is a simple schematic diagram of the installation position of the travel limit device of the powder mixer according to the utility model;

[0015] Reference figures: 1. housing; 2. sliding top column; 3. spring; 4. fixed shaft; 5. pressure block; 6. elevator; 7. travel switch device; 8. circular part. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Therefore, 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 claimed invention, 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 the field without creative work are within the scope of protection of the present invention.

[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In order to better understand the purpose, structure and function of the utility model, the travel limit device for a powder mixer of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0021] Embodiment 1:

[0022] like Figure 1 As shown, the utility model provides a stroke limit device for a powder mixer, including a shell 1, a fixed shaft 4 and a sliding top column 2, wherein the fixed shaft 4 is arranged in the shell 1; the top end of the fixed shaft 4 is fixed to the upper end of the shell 1; the sliding top column 2 is slidably connected to the lower part of the fixed shaft 4, and the bottom end of the sliding top column 2 extends out of the shell 1, and the sliding top column 2 can move up and down along the fixed shaft 4.

[0023] Embodiment 2:

[0024] like Figure 1 As shown, the utility model provides a stroke limit device for a powder mixer, including a shell 1, a fixed shaft 4 and a sliding top column 2, wherein the fixed shaft 4 is arranged in the shell 1; the top end of the fixed shaft 4 is fixed to the upper end of the shell 1; the sliding top column 2 is slidably connected to the lower part of the fixed shaft 4, and the bottom end of the sliding top column 2 extends out of the shell 1, and the sliding top column 2 can move up and down along the fixed shaft 4.

[0025] The difference between this embodiment and embodiment 1 is that:

[0026] like Figure 1 As shown, a pressing block 5 is provided on the top of the housing, and the pressing block 5 is fixedly connected to the top end of the fixed shaft 2;

[0027] The interior of the sliding top column 2 is a hollow cylindrical structure, and the exterior of the sliding top column 2 is an inclined structure that is narrow at the top and wide at the bottom; a spring 3 is sleeved on the fixed shaft 4, and the spring 3 extends into the interior of the sliding top column 2, and the lower end of the spring is against the step surface inside the sliding top column.

[0028] The utility model relates to a travel limit device for a powder mixer, and its working principle is as follows:

[0029] like Figure 1 and Figure 2 As shown, the limit device of the utility model is fixedly connected to the bottom of the mixing elevator 6. When the elevator descends, the lower end of the sliding top column 2 touches the ground, and the sliding top column moves upward relative to the shell. The spring 3 is compressed, and the inclined surface of the sliding top column 2 pushes the circular part 8 of the travel switch device 7. The circular part 8 retracts through the spring device arranged in the travel switch device, so that the travel switch device generates a lower limit signal and sends it to the elevator, and the elevator stops descending; when the elevator rises, the spring pushes the sliding top column in the opposite direction, and the lower limit travel mechanism returns to its initial state.

[0030] The parts of the present invention that are not described in detail are prior art, and their internal structures will not be described one by one here.

[0031] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A travel limit device for a powder mixer, characterized in that: It includes a shell, a fixed shaft, a sliding top column and a travel switch device, wherein the fixed shaft is arranged in the shell; the top end of the fixed shaft is fixed to the upper end of the shell; the sliding top column is slidably connected to the lower part of the fixed shaft, the bottom end of the sliding top column extends out of the shell, and the sliding top column can move up and down along the fixed shaft; the inclined surface of the sliding top column pushes the circular part of the travel switch device, and the circular part of the travel switch device retracts through the spring device arranged in the travel switch device, so that the travel switch device generates a lower limit signal.

2. The travel limit device for a powder mixer according to claim 1, characterized in that: A pressing block is arranged on the top of the shell, and the pressing block is fixedly connected to the top end of the fixed shaft.

3. The travel limit device for a powder mixer according to claim 1, characterized in that: The interior of the sliding top column is a hollow cylindrical structure, and the exterior of the sliding top column is an inclined surface structure that is narrow at the top and wide at the bottom.

4. The travel limit device for a powder mixer according to claim 3, characterized in that: A spring is sleeved on the fixed shaft, and the spring extends into the interior of the sliding top column, and the lower end of the spring abuts against the step surface inside the sliding top column.

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