Quantitative discharging device for powder coating

Abstract

The utility model relates to the technical field of powder coating processing equipment, in particular to a quantitative blanking device for powder coating, which comprises a blanking hopper, and further comprises a quantitative mechanism and a discharging mechanism which are used for quickly adjusting the amount of the powder coating sent out by the blanking hopper. The discharging amount of the powder coating is changed by controlling the opening time of the gap between the conical structure of the quantitative pipe and the discharging cover, meanwhile, the spiral rod and the sliding sleeve are driven to rotate synchronously through rotation of the rotating shaft, and then the amount of the powder coating accumulated in the middle of the quantitative pipe is reduced through rotation of the spiral rod; and meanwhile, the sliding sleeve drives the stirring frame to rotate to pass through the teeth at the lower end of the quantitative pipe to generate vibration, so that the powder coating in the quantitative pipe is prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of powder coating processing equipment, in particular to a quantitative feeding device for powder coating. Background Art

[0002] According to the patent document with the announcement number CN219729849U, the second motor in the feeding pipe drives the two stirring rods to rotate to prevent the powder coating from being blocked. At the same time, when the first motor drives the feeding pipe and the quantitative mechanism to tilt through the rotating shaft, a certain amount of powder coating stored in the quantitative mechanism is discharged;

[0003] When the patent document prevents the powder coating from being blocked by stirring, since there is a certain distance between the stirring rod and the lower end of the feed pipe, the powder coating may not be blocked at the stirring rod position. However, the accumulation of powder coating at the lower side of the stirring rod, which is the center of the filter, will radially squeeze the powder coating at the inner wall of the feed pipe, which may then cause blockage of the powder coating at the edge of the filter, affecting the entire powder coating discharge. At the same time, when the quantitative mechanism follows the inclination of the feed pipe to control the discharge speed and quantity, since the feed pipe is directly connected to the quantitative mechanism, when the quantitative mechanism tilts to discharge the powder coating inside it, the powder coating in the feed pipe will also pass through the filter into the quantitative mechanism. Obviously, the entire quantitative mechanism cannot accurately control the amount of discharged powder coating. Utility Model Content

[0004] The purpose of the utility model is to provide a quantitative feeding device for powder coating in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A quantitative feeding device for powder coating, comprising a feeding hopper, a quantitative mechanism and a discharging mechanism for quickly adjusting the amount of powder coating delivered by the feeding hopper;

[0007] The quantitative mechanism includes a quantitative tube, the upper end of which is fixedly connected to the lower end of the lower hopper, two brackets are symmetrically arranged on the outer side of the quantitative tube, the upper end of the bracket is fixed on the conical surface of the lower hopper, a hydraulic rod is fixed on the inner side of the bracket, and a lifting plate is fixed on the telescopic part of the hydraulic rod;

[0008] The discharging mechanism includes a rotating shaft, a discharging cover is rotatably connected to the upper side of the rotating shaft, a spiral rod is fixed to the upper end of the rotating shaft, a positioning plate fixed to the outer side of the rotating shaft is arranged below the discharging cover, an anti-blocking component is arranged on the lower side of the positioning plate, and the lower end of the rotating shaft is rotatably connected to the lifting plate.

[0009] Preferably, the anti-blocking component comprises a tension spring, the upper end of the tension spring is fixedly connected to the positioning plate, the lower end of the tension spring is fixed with a sliding sleeve, and two toggle frames are symmetrically arranged on the outer side of the sliding sleeve.

[0010] Preferably, a plurality of teeth are fixed at the edge of the lower end of the quantitative tube, and the upper end of the shifting frame is located at the teeth of the quantitative tube.

[0011] Preferably, the inner wall of the quantitative tube is a conical structure which is convenient for matching with the discharge cover.

[0012] Preferably, four T-shaped sliding grooves are provided on the outer side of the rotating shaft, and a T-shaped sliding block matching with the T-shaped sliding grooves is provided on the inner side of the sliding sleeve.

[0013] Preferably: a motor for driving the rotating shaft to rotate is fixedly provided at the input end of the rotating shaft.

[0014] Compared with the prior art, the beneficial effects are as follows: the amount of powder coating discharged is changed by controlling the time for the gap between the conical structure of the metering tube and the discharge hood to open, and the rotation of the rotating shaft is used to drive the spiral rod and the sliding sleeve to rotate synchronously, and then the amount of powder coating accumulated in the middle position of the metering tube is reduced by the rotation of the spiral rod, thereby avoiding the squeezing of the powder coating on the inner wall of the metering tube, and at the same time, the sliding sleeve drives the toggle frame to rotate through the teeth at the lower end of the metering tube to generate vibration to prevent the powder coating in the metering tube from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a structural schematic diagram of a quantitative feeding device for powder coatings described in the utility model;

[0017] Figure 2 It is a cross-sectional view of a quantitative feeding device for powder coatings according to the utility model;

[0018] Figure 3 This is a diagram of the coordination of the teeth and the toggle frame of a quantitative feeding device for powder coatings described in the utility model;

[0019] Figure 4 This is a partial parts diagram of a quantitative tube of a quantitative feeding device for powder coatings described in the utility model;

[0020] Figure 5 This is a schematic structural diagram of an anti-blocking component of a quantitative feeding device for powder coatings according to the utility model;

[0021] Figure 6 This is a partial parts diagram of a screw rod of a quantitative feeding device for powder coatings described in the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of a discharging mechanism of a quantitative discharging device for powder coatings according to the utility model;

[0023] Figure 8 The utility model is a schematic diagram of the lifting plate structure of a quantitative feeding device for powder coatings.

[0024] The following are the descriptions of the reference numerals:

[0025] 1. Lower hopper; 2. Dosing mechanism; 3. Discharging mechanism; 4. Motor; 21. Bracket; 22. Dosing tube; 23. Hydraulic rod; 24. Teeth; 25. Lifting plate; 31. Screw rod; 32. Discharging cover; 33. Rotating shaft; 34. Positioning plate; 35. Tension spring; 36. Sliding sleeve; 37. Toggle frame. DETAILED DESCRIPTION

[0026] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0028] The utility model is further described below in conjunction with the accompanying drawings:

[0029] like Figure 1-Figure 8 As shown, a quantitative feeding device for powder coating comprises a feeding hopper 1, a quantitative mechanism 2 and a discharging mechanism 3 for quickly adjusting the amount of powder coating delivered by the feeding hopper 1;

[0030] In this embodiment: the quantitative mechanism 2 includes a quantitative tube 22, the upper end of the quantitative tube 22 is fixedly connected to the lower end of the lower hopper 1, and two brackets 21 are symmetrically arranged on the outer side of the quantitative tube 22. The upper end of the bracket 21 is fixed on the conical surface of the lower hopper 1, and a hydraulic rod 23 is fixed on the inner side of the bracket 21. The telescopic part of the hydraulic rod 23 is fixed with a lifting plate 25. The hydraulic rod 23 on the bracket 21 is used to drive the lifting plate 25 to rise and fall on the lower side of the quantitative tube 22. The position of the discharge mechanism 3 in the quantitative tube 22 is changed by lifting and lowering the lifting plate 25, and then the gap between the discharge mechanism 3 and the inner wall of the quantitative tube 22 is adjusted, and then the quantitative discharge is completed by opening the corresponding gap time.

[0031] In this embodiment: the discharging mechanism 3 includes a rotating shaft 33, the upper side of the rotating shaft 33 is rotatably connected to the discharging cover 32, the upper end of the rotating shaft 33 is fixed with a spiral rod 31, and a positioning plate 34 fixed to the outer side of the rotating shaft 33 is arranged below the discharging cover 32, and an anti-blocking component is arranged on the lower side of the positioning plate 34. The lower end of the rotating shaft 33 is rotatably connected to the lifting plate 25, and the inner wall of the quantitative tube 22 is a conical structure convenient for cooperating with the discharging cover 32. Four T-shaped slide grooves are provided on the outer side of the rotating shaft 33, and a T-shaped slider cooperating with the T-shaped slide groove is provided on the inner side of the sliding sleeve 36. The input end of the rotating shaft 33 is fixedly provided with a motor 4 for driving it to rotate, and the rotating shaft 33 is used to follow the lifting plate 25 to drive the spiral rod 31. The rod 31 and the discharge cover 32 move up and down inside the discharge cover 32, and then the gap between the discharge cover 32 and the conical structure of the metering tube 22 is changed by the lifting and lowering of the discharge cover 32, and then the discharge amount of the powder coating is accurately controlled by controlling the opening time of the gap. At the same time, the motor 4 drives the rotating shaft 33 to rotate to allow the spiral rod 31 to rotate inside the metering tube 22, and then the powder coating blocked in the center of the metering tube 22 is pushed upward, and then the powder coating is prevented from accumulating in the center of the metering tube 22 to squeeze the powder coating on the inner wall of the metering tube 22 and block the metering tube 22, and then the powder coating can fall out through the gap between the metering tube 22 and the discharge cover 32.

[0032] The locking cam 36 is provided on the outer side of the locking cam 36 so that the locking cam 36 is locked and the locking cam 36 is unlocked.

[0033] Working principle: When quantitative discharging is required, the hydraulic rod 23 on the bracket 21 drives the lifting plate 25 and the rotating shaft 33 to lower the discharging cover 32 by a certain distance, and then a gap appears between the conical structure of the quantitative tube 22 and the discharging cover 32, and then the powder coating in the discharging hopper 1 and the quantitative tube 22 will slide down from this gap, and at the same time, the time for the discharging cover 32 and the conical structure of the quantitative tube 22 to open the gap is controlled to control the amount of powder coating falling out; when the opening time is reached, the telescopic part of the hydraulic rod 23 drives the lifting plate 25 to move upward, and drives the rotating shaft 33 and the discharging cover 32 to move upward along the inside of the quantitative tube 22, and then the discharging cover 32 fits with the conical structure of the quantitative tube 22 again, and then the quantitative tube 22 is blocked to prevent the powder coating from discharging;

[0034] The cam 33 is used to move the screw 31 and the screw 31 is used to move the powder coating on the inner wall of the metering tube 22, thereby preventing the powder coating from accumulating at the center of the metering tube 22 and squeezing the powder coating on the inner wall of the metering tube 22 to block the metering tube 22.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A quantitative feeding device for powder coating, comprising a feeding hopper (1), characterized in that: It also includes a quantitative mechanism (2) and a discharging mechanism (3) for quickly adjusting the amount of powder coating delivered by the lower hopper (1); The quantitative mechanism (2) comprises a quantitative tube (22), the upper end of the quantitative tube (22) is fixedly connected to the lower end of the lower hopper (1), two brackets (21) are symmetrically arranged on the outer side of the quantitative tube (22), the upper ends of the brackets (21) are fixed on the conical surface of the lower hopper (1), a hydraulic rod (23) is fixed on the inner side of the bracket (21), and a lifting plate (25) is fixed to the telescopic part of the hydraulic rod (23); The discharging mechanism (3) comprises a rotating shaft (33), the upper side of which is rotatably connected to a discharging cover (32), the upper end of which is fixed with a spiral rod (31), a positioning plate (34) fixed to the outer side of the rotating shaft (33) is arranged below the discharging cover (32), an anti-blocking component is arranged on the lower side of the positioning plate (34), and the lower end of the rotating shaft (33) is rotatably connected to the lifting plate (25).

2. A quantitative feeding device for powder coating according to claim 1, characterized in that: The anti-blocking component comprises a tension spring (35), the upper end of the tension spring (35) is fixedly connected to the positioning plate (34), the lower end of the tension spring (35) is fixed with a sliding sleeve (36), and two toggle frames (37) are symmetrically arranged on the outer side of the sliding sleeve (36).

3. A quantitative feeding device for powder coating according to claim 2, characterized in that: A plurality of teeth (24) are fixed at the edge of the lower end of the quantitative tube (22), and the upper end of the shifting frame (37) is located at the teeth (24) of the quantitative tube (22).

4. A quantitative feeding device for powder coating according to claim 1, characterized in that: The inner wall of the quantitative tube (22) is a conical structure that is convenient for matching with the discharge cover (32).

5. A quantitative feeding device for powder coating according to claim 1, characterized in that: Four T-shaped sliding grooves are provided on the outer side of the rotating shaft (33), and a T-shaped sliding block matched with the T-shaped sliding grooves is provided on the inner side of the sliding sleeve (36).

6. A quantitative feeding device for powder coating according to claim 1, characterized in that: A motor (4) is fixedly disposed at the input end of the rotating shaft (33) for driving the rotating shaft (33) to rotate.

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