Overload protection type vacuum feeding machine

Abstract

The utility model discloses an anti-overload type vacuum feeding machine which comprises a feeding tank, a discharging pipe is connected to the bottom of the feeding tank in a penetrating mode, a feeding pipe is connected to one side of the feeding tank in a penetrating mode, a vacuum pump is arranged on one side of the top of the feeding tank, and a compressed air back flushing pump is arranged on the other side of the top of the feeding tank. A filter screen is arranged on the upper portion of the interior of the feeding tank, two supporting rods are slidably connected to the interior of the filter screen in a central symmetry mode, telescopic springs symmetrically sleeve the two supporting rods, fixing frames are fixedly installed at the two ends of each supporting rod, and the fixing frames are fixedly connected with the feeding tank; the two ends of the telescopic spring are fixedly connected with the fixed frame and the filter screen respectively; according to the vacuum feeding device, the filter screen can be prevented from being blocked while vacuum feeding is conducted, overload of the vacuum pump caused by blocking of the filter screen is avoided, the overall structure is simple, the use cost and the manufacturing cost are low, subsequent damage is not likely to happen, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum feeders, in particular to an overload-proof vacuum feeder. Background Art

[0002] The vacuum loader consists of several major components, including a vacuum pump (oil-free, water-free), a filter, a compressed air backflush device, a vacuum hopper and a conveying hose. The vacuum loader is mainly used to convey powder and granular materials.

[0003] Publication No. CN217296377U discloses a vacuum feeder that prevents material adhesion and clogging. The patent controls the operation of the reversing motor through a controller, so that the reversing motor drives the rotating rod to rotate, prompting the rotating rod to drive the connecting rod and the fixed rod to rotate upward, thereby allowing the striking block to rotate to above the bearing seat, and then the controller controls the reversing motor to rotate in the opposite direction, prompting the reversing motor to drive the rotating rod, the connecting rod and the fixed rod to rotate in the opposite direction, thereby allowing the striking block to rotate downward and approach the filter element, thereby allowing the striking block to knock the filter element, so that the material adhered to the lower end surface of the filter element is forced to fall to the bottom end of the device body, thereby avoiding the problem of the filter element being blocked by the material and improving the material conveying efficiency. However, the patent still has the following problems in actual use:

[0004] The reversing motor is controlled by a controller so that the reversing motor drives the rotating rod to rotate, so that the striking block strikes the filter element, and the material adhering to the lower end surface of the filter element is forced to fall to the bottom end inside the device body, thereby avoiding the problem of the filter element being blocked by the material. However, when in use, two reversing motors are used to control the striking of the striking block. The setting of two reversing motors will increase the use cost and manufacturing cost to a certain extent, and the reversing motor needs to be continuously rotated forward and reversed, and the motor needs to continuously switch the direction of rotation and needs to be continuously started. It is easy to be damaged later, and it is not convenient to repair the motor.

[0005] An overload-proof vacuum feeder is proposed to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-overload vacuum loader to solve the problem proposed in the above background technology that the reversing motor is currently controlled by a controller to drive the rotating rod to rotate, so that the striking block can strike the filter element, so that the material adhering to the lower end surface of the filter element is forced to fall to the bottom end inside the device body, thereby avoiding the problem of the filter element being blocked by the material. However, when in use, two reversing motors are used to control the striking of the striking block. The setting of two reversing motors will increase the use cost and manufacturing cost to a certain extent, and the reversing motor needs to be continuously rotated forward and reversed, the motor needs to continuously switch the direction of rotation, and needs to be continuously started, which is prone to damage later and is inconvenient for maintenance of the motor.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an overload-proof vacuum feeder, comprising a feed tank;

[0008] The bottom of the feeding tank is connected with a discharge pipe, and one side of the feeding tank is connected with a feed pipe, and a vacuum pump is arranged on one side of the top of the feeding tank, and a compressed air backflush pump is arranged on the other side of the top of the feeding tank;

[0009] Also includes:

[0010] A filter screen is arranged above the interior of the feeding tank, and two groups of support rods are symmetrically slidably connected to the center of the filter screen, and telescopic springs are symmetrically sleeved on the outside of the two groups of support rods, and fixed frames are fixedly installed at both ends of the support rods;

[0011] Wherein, the fixing frame is fixedly connected to the feeding tank, and the two ends of the telescopic spring are fixedly connected to the fixing frame and the filter screen respectively, and anti-blocking components are provided on the inner and outer sides of the feeding tank;

[0012] Among them, the anti-blocking component includes a mounting plate fixedly installed on the side of the loading tank away from the feeding pipe, and a driving motor is fixedly installed on the top of the mounting plate, and a rotating shaft is fixedly installed on the output end of the driving motor, and the rotating shaft is rotatably connected to the loading tank.

[0013] Preferably, mounting rods are symmetrically installed inside the feeding tank below the filter screen, and mounting frames are symmetrically installed on one side of the bottom of the two mounting rods, and an L-shaped rod is rotatably connected between the two mounting frames, and torsion springs are provided at the connection points between the two sides of the L-shaped rod and the two mounting frames.

[0014] Preferably, both ends of the torsion spring are fixedly connected to the L-shaped rod and the mounting frame respectively, and the torsion spring is in a slightly stretched state.

[0015] Preferably, a striking block is fixedly installed at one end of the L-shaped rod, and a movable plate is fixedly installed at the other end of the L-shaped rod, and a turntable is fixedly installed on one side of the rotating shaft close to the two movable plates, and a column is fixedly installed on one side of the turntable, and the column is slidably connected to the movable plate.

[0016] Preferably, a positioning rod is fixedly installed below the rotating shaft inside the feeding tank, and a limiting rod is fixedly installed below the inside of the feeding tank, and a rotating rod is rotatably connected to the positioning rod and the limiting rod, and a number of stirring rods are symmetrically installed on both sides of the rotating rod.

[0017] Preferably, a shell is rotatably connected to the upper portion of the outer portion of the rotating rod, and the rotating shaft is rotatably connected to the shell.

[0018] Preferably, a first bevel gear is fixedly mounted on the top end of the rotating rod, and a second bevel gear is fixedly mounted on the side of the rotating shaft close to the first bevel gear, and the second bevel gear is meshingly connected with the first bevel gear.

[0019] Compared with the prior art, the utility model has the following beneficial effects: the anti-overload vacuum feeder is provided with an anti-blocking component inside the feeding tank, so that the filter screen can be prevented from being blocked during vacuum feeding, and the vacuum pump can be prevented from being overloaded due to the blockage of the filter screen. The overall structure is simple, the use cost and the manufacturing cost are low, and it is not easy to be damaged later, which improves the practicality. The specific contents are as follows:

[0020] 1. An anti-blocking component is set inside the feeding tank. When vacuum feeding is performed, the inside of the feeding tank is evacuated by a vacuum pump, so that the material enters the feeding tank through the feeding pipe, and then the material is filtered through the filter screen. The filter screen is back-blown by a compressed air back-blowing pump, and then the material can be fed through the discharge pipe. The driving motor can be started to drive the rotating shaft to rotate, and the rotating shaft drives the two turntables to rotate. The turntable drives the column rod to rotate in a circle. After the column rod rotates in a circle, the movable plate can be pushed to move through the sliding connection of the movable plate, and then the L-shaped rod can be pushed to rotate on the mounting frame, so that the torque The rotation spring restores the deformation. After the L-shaped rod rotates, the movable plate will gradually move away from the column rod until the movable plate and the column rod are separated. Then, the L-shaped rod can be reset under the action of the torsion spring, so that the knocking block can knock and clean the filter. The filter can slide on the support rod and drive the telescopic spring to stretch or compress, so that the filter vibrates, thereby preventing the filter from being blocked. The anti-blocking component can prevent the filter from being blocked during vacuum feeding, and avoid overloading of the vacuum pump due to filter blockage. The overall structure is simple, the use cost and manufacturing cost are low, and it is not easy to be damaged later, which improves practicality.

[0021] 2. When the rotating shaft rotates, the rotating rod can be driven to rotate through the meshing of the first bevel gear and the second bevel gear. The rotating rod can be supported and limited by the positioning rod and the limiting rod. After the rotating rod rotates, the stirring rod can be driven to rotate, so as to stir the material inside the feeding tank and break up the lumps, thereby avoiding the agglomeration of the material and the subsequent blockage of the discharge pipe, thereby improving the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0023] Figure 2 This is a front sectional structural schematic diagram of the utility model;

[0024] Figure 3 For this utility model Figure 2A schematic diagram of the enlarged structure of the middle A area;

[0025] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of the middle B area;

[0026] Figure 5 It is a schematic diagram of the partial side structure of the anti-blocking component of the utility model.

[0027] In the figure: 1. feeding tank; 101. discharge pipe; 102. feed pipe; 103. vacuum pump; 104. compressed air back-blowing pump; 105. filter screen; 106. support rod; 107. telescopic spring; 108. fixing frame; 2. anti-blocking component; 201. mounting plate; 202. drive motor; 203. rotating shaft; 204. mounting rod; 205. mounting frame; 206. L-shaped rod; 207. torsion spring; 208. knocking block; 209. movable plate; 210. turntable; 211. column rod; 212. positioning rod; 213. limit rod; 214. rotating rod; 215. stirring rod; 216. shell; 217. first bevel gear; 218. second bevel gear. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5The utility model provides a technical solution: an overload-proof vacuum feeder, comprising a feeding tank 1, a discharge pipe 101 is connected through the bottom of the feeding tank 1, a feed pipe 102 is connected through one side of the feeding tank 1, a vacuum pump 103 is arranged on one side of the top of the feeding tank 1, and a compressed air back-blowing pump 104 is arranged on the other side of the top of the feeding tank 1, and also comprises: a filter screen 105 is arranged above the interior of the feeding tank 1, and two groups of support rods 106 are symmetrically slidably connected to the inner center of the filter screen 105, and the outsides of the two groups of support rods 106 are symmetrically sleeved with telescopic springs 107, and both ends of the support rods 106 are fixedly installed with fixing frames 108, wherein the fixing frame 108 is fixedly connected to the feeding tank 1, and the telescopic springs 107 are symmetrically sleeved on the outsides of the two groups of support rods 106, and the fixing frames 108 are fixedly installed with the feeding tank 1, and the telescopic springs 107 are fixedly sleeved on the two ends of the support rods 106. The two ends of 07 are respectively fixedly connected to the fixing frame 108 and the filter screen 105, and an anti-blocking component 2 is arranged on the inner and outer sides of the feeding tank 1, wherein the anti-blocking component 2 includes a mounting plate 201 fixedly mounted on the side of the feeding tank 1 away from the feeding pipe 102, and a driving motor 202 is fixedly mounted on the top of the mounting plate 201, and a rotating shaft 203 is fixedly mounted on the output end of the driving motor 202, and the rotating shaft 203 is rotatably connected to the feeding tank 1, and the anti-blocking component 2 can prevent the filter screen 105 from being blocked while vacuum feeding is carried out, thereby avoiding overloading of the vacuum pump 103 due to blockage of the filter screen 105, and the overall structure is simple, the use cost and manufacturing cost are low, and it is not easy to be damaged later, thereby improving practicality.

[0030] A mounting rod 204 is symmetrically installed inside the feeding tank 1 below the filter screen 105, and a mounting frame 205 is symmetrically installed on one side of the bottom of the two mounting rods 204, and an L-shaped rod 206 is rotatably connected between the two mounting frames 205, and torsion springs 207 are arranged at the connection between the two sides of the L-shaped rod 206 and the two mounting frames 205, so that the L-shaped rod 206 can automatically reset after rotation, and the two ends of the torsion spring 207 are respectively fixedly connected to the L-shaped rod 206 and the mounting frame 205, and the torsion spring 207 is in a slightly stretched state, so that the knocking block 208 can be close to the filter screen 105, a knocking block 208 is fixedly installed on one end of the L-shaped rod 206, and a movable plate 209 is fixedly installed on the other end of the L-shaped rod 206, and a turntable 210 is fixedly installed on one side of the rotating shaft 203 close to the two movable plates 209, and a column 211 is fixedly installed on one side of the turntable 210, and the column 211 and the movable plate 209 are connected. The sliding connection can be used to knock the filter screen 105. A positioning rod 212 is fixedly installed below the rotating shaft 203 inside the feeding tank 1, and a limiting rod 213 is fixedly installed below the inside of the feeding tank 1, and a rotating rod 214 is rotatably connected to the inside of the positioning rod 212 and the limiting rod 213, and a number of stirring rods 215 are symmetrically installed on both sides of the rotating rod 214 to support the rotation of the rotating rod 214, and a shell 216 is rotatably connected to the upper outside of the rotating rod 214, and the rotating shaft 203 is rotatably connected to the shell 216, which can protect the connection between the rotating shaft 203 and the rotating rod 214, and a first bevel gear 217 is fixedly installed on the top of the rotating rod 214, and a second bevel gear 218 is fixedly installed on the side of the rotating shaft 203 close to the first bevel gear 217, and the second bevel gear 218 is meshingly connected with the first bevel gear 217, so that the rotation of the rotating shaft 203 can drive the rotating rod 214 to rotate.

[0031] Working principle: Before using this anti-overload vacuum feeder, you need to check the overall condition of the device to make sure it can work normally. Figure 1 - Figure 5As shown, an anti-blocking component 2 is provided inside the feeding tank 1. When vacuum feeding is performed, the inside of the feeding tank 1 is evacuated by the vacuum pump 103, so that the material enters the feeding tank 1 through the feeding pipe 102, and then the material is filtered through the filter screen 105. The filter screen 105 is back-blown by the compressed air back-blowing pump 104, and then the material can be fed through the discharge pipe 101. The driving motor 202 can be started to drive the rotating shaft 203 to rotate. After the rotating shaft 203 rotates, it drives the two rotating disks 210 to rotate. After the rotating disk 210 rotates, it drives the column rod 211 to rotate in a circle. After the column rod 211 rotates in a circle, it can push the movable plate 209 to move through the sliding connection of the movable plate 209, and then it can push the L-shaped rod 206 to rotate on the mounting frame 205, so that the torsion bar 206 can be driven to rotate. The torsion spring 207 recovers its deformation, and after the L-shaped rod 206 rotates, the movable plate 209 will gradually move away from the column rod 211 until the movable plate 209 is separated from the column rod 211, and then the L-shaped rod 206 can be reset under the action of the torsion spring 207, so that the knocking block 208 can knock and clean the filter 105, and the filter 105 can slide on the support rod 106, and drive the telescopic spring 107 to stretch or compress, so that the filter 105 vibrates, thereby preventing the filter 105 from being blocked. The anti-blocking component 2 can prevent the filter 105 from being blocked while vacuum feeding is being performed, and avoid overloading of the vacuum pump 103 due to the blockage of the filter 105. The overall structure is simple, the use cost and manufacturing cost are low, and it is not easy to be damaged later, which improves practicality.

[0032] When the rotating shaft 203 rotates, the rotating rod 214 can be driven to rotate through the engagement of the first bevel gear 217 and the second bevel gear 218. The rotating rod 214 can be supported and limited by the positioning rod 212 and the limiting rod 213. After the rotating rod 214 rotates, the stirring rod 215 can be driven to rotate, so as to stir the material inside the feeding tank 1 and break up the lumps, thereby avoiding the agglomeration of the material and avoiding the subsequent blockage of the discharge pipe 101, thereby improving the practicality.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An overload-proof vacuum feeder, comprising a feed tank (1); A discharge pipe (101) is connected through the bottom of the loading tank (1), a feed pipe (102) is connected through one side of the loading tank (1), a vacuum pump (103) is provided on one side of the top of the loading tank (1), and a compressed air backflush pump (104) is provided on the other side of the top of the loading tank (1); It is characterized in that Also includes: A filter screen (105) is arranged above the interior of the feeding tank (1), and two groups of support rods (106) are symmetrically slidably connected to the center of the filter screen (105), and telescopic springs (107) are symmetrically sleeved on the outside of the two groups of support rods (106), and fixing frames (108) are fixedly installed at both ends of the support rods (106); The fixing frame (108) is fixedly connected to the feeding tank (1), and the two ends of the telescopic spring (107) are respectively fixedly connected to the fixing frame (108) and the filter screen (105), and anti-blocking components (2) are provided inside and outside the feeding tank (1); The anti-blocking component (2) comprises a mounting plate (201) fixedly mounted on a side of the loading tank (1) away from the feeding pipe (102), a driving motor (202) fixedly mounted on the top of the mounting plate (201), a rotating shaft (203) fixedly mounted on the output end of the driving motor (202), and the rotating shaft (203) is rotatably connected to the loading tank (1).

2. The anti-overload vacuum feeder according to claim 1, characterized in that: The loading tank (1) has mounting rods (204) symmetrically mounted below the filter screen (105) inside, and mounting frames (205) are symmetrically mounted on one side of the bottom of the two mounting rods (204), and an L-shaped rod (206) is rotatably connected between the two mounting frames (205), and torsion springs (207) are provided at the connection points between the two sides of the L-shaped rod (206) and the two mounting frames (205).

3. The anti-overload vacuum feeder according to claim 2, characterized in that: The two ends of the torsion spring (207) are respectively fixedly connected to the L-shaped rod (206) and the mounting frame (205), and the torsion spring (207) is in a slightly stretched state.

4. The anti-overload vacuum feeder according to claim 2, characterized in that: A striking block (208) is fixedly mounted on one end of the L-shaped rod (206), and a movable plate (209) is fixedly mounted on the other end of the L-shaped rod (206), and a rotating disk (210) is fixedly mounted on one side of the rotating shaft (203) close to the two movable plates (209), and a column (211) is fixedly mounted on one side of the rotating disk (210), and the column (211) is slidably connected to the movable plate (209).

5. The anti-overload vacuum feeder according to claim 1, characterized in that: A positioning rod (212) is fixedly installed inside the feeding tank (1) below the rotating shaft (203), and a limiting rod (213) is fixedly installed below the inside of the feeding tank (1), and a rotating rod (214) is rotatably connected inside the positioning rod (212) and the limiting rod (213), and a plurality of stirring rods (215) are symmetrically installed on both sides of the rotating rod (214).

6. The anti-overload vacuum feeder according to claim 5, characterized in that: A housing (216) is rotatably connected to the upper portion of the exterior of the rotating rod (214), and the rotating shaft (203) is rotatably connected to the housing (216).

7. The anti-overload vacuum feeder according to claim 5, characterized in that: A first bevel gear (217) is fixedly mounted on the top end of the rotating rod (214), and a second bevel gear (218) is fixedly mounted on the side of the rotating shaft (203) close to the first bevel gear (217), and the second bevel gear (218) is meshingly connected with the first bevel gear (217).

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