Vacuum charging machine with safety protection function

Abstract

The utility model provides a vacuum charging machine with a safety protection function, which relates to the technical field of vacuum charging machines and comprises a vacuum charging device, an outer ring fixedly sleeved in the middle of the outer wall of the vacuum charging device, and an upper side shielding protection component slidably sleeved at the upper end of the outer wall of the vacuum charging device. The upper end of the lower side shielding protection assembly is fixedly assembled at the outer edge of the bottom face of the outer ring, the filtering assembly cleaning structure is fixedly assembled at the upper end of an inner cavity of the vacuum feeding device, and the upper end of the filtering assembly cleaning structure is attached to the bottom face of the filtering assembly; the upper end of the outer wall of the device is shielded and protected through the upper side shielding and protecting assembly, and the lower end of the outer wall of the device is shielded and protected through the lower side shielding and protecting assembly. The filtering assembly is periodically cleaned through the filtering assembly cleaning structure, and the safety protection measure of the vacuum charging machine is enhanced through the measures.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum feeders, in particular to a vacuum feeder with a safety protection function. Background Art

[0002] Vacuum powder feeder can be used to convey powder and granules at a high height and over a long distance. It is used in conjunction with extruders, injection molding machines, high-speed mixers, non-woven production lines, etc. with large output. This machine has a beautiful appearance, is fully automatic, and does not require manpower. The parts in contact with the material are made of stainless steel, which is easy to operate and maintain.

[0003] Most vacuum feeders are directly exposed to the outside and are easily damaged when impacted by the outside. The filter plate inside the vacuum feeder will accumulate dust after long-term use, causing the vacuum feeder to be unable to work normally, thereby reducing the use effect of the vacuum feeder. From the above content, it can be seen that the vacuum feeder in the prior art lacks corresponding safety protection measures. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum feeder with a safety protection function, which shields and protects the upper end of the outer wall of the device through an upper shielding and protection component, and shields and protects the lower end of the outer wall of the device through a lower shielding and protection component; the filter component is periodically cleaned through a filter component cleaning structure, and the above measures are used to enhance the safety protection measures of the vacuum feeder.

[0005] The utility model provides a vacuum feeder with a safety protection function, comprising:

[0006] Vacuum feeding device;

[0007] An outer ring, which is fixedly sleeved on the middle part of the outer wall of the vacuum feeding device;

[0008] An upper shielding and protection component is slidably sleeved on the upper end of the outer wall of the vacuum feeding device, and the lower end of the upper shielding and protection component abuts against the outer ring;

[0009] A lower shielding and protection assembly, the upper end of which is fixedly assembled at the outer edge of the bottom surface of the outer ring;

[0010] A support frame, which is fixedly mounted on the lower end of the outer wall of the vacuum feeding device;

[0011] The filter assembly cleaning structure is fixedly assembled on the upper end of the inner cavity of the vacuum feeding device. The vacuum feeding device includes a filter assembly arranged on the upper end of its inner cavity. The upper end of the filter assembly cleaning structure is in contact with the bottom surface of the filter assembly.

[0012] As a further optimization solution, in order to shield and protect the upper end of the outer wall of the device, the upper shielding and protection component includes:

[0013] There are four fan-shaped baffles, which are circumferentially distributed around the upper end of the outer wall of the vacuum feeding device, and a splicing connection member group is fixedly connected between adjacent fan-shaped baffles, and the splicing connection member group consists of three splicing connection members distributed longitudinally;

[0014] There are four fan-shaped rubber pads, which are respectively adhered and fixed to the inner side surface of the fan-shaped baffle, and the inner side surface of the fan-shaped rubber pad is in contact with the outer wall of the vacuum feeding device.

[0015] As a further optimization solution, in order to enable the four fan-shaped baffles to be spliced ​​into a whole and to be disassembled, the splicing connector includes:

[0016] A first connecting plate, one end of which is fixedly connected to the outer wall of the adjacent fan-shaped baffle, and a slot is provided at the inner side edge of the other end of the first connecting plate;

[0017] A second connecting plate, one end of which is fixedly connected to the outer wall of the adjacent fan-shaped baffle, and the other end of the second connecting plate is integrally formed with an insert plate, which is inserted into the slot;

[0018] A fixing bolt passes through the inserting plate, and the end of the fixing bolt is screwed on the bottom surface of the slot.

[0019] As a further optimization solution, in order to shield and protect the lower end of the outer wall of the device, the lower shielding protection component includes:

[0020] There are at least twenty-eight elastic metal plates, the upper ends of which are welded and fixed to the bottom edge of the outer ring, the edges of adjacent elastic metal plates are fitted together, the front sections of the twenty-eight elastic metal plates are provided with discharge windows, and the lower ends of the elastic metal plates extend to the lower end of the outer wall of the support frame.

[0021] As a further optimization solution, in order to provide dust protection for the discharge pipe with valve, a shielding sheet is fixedly attached to the top surface of the discharge window, and the lower end of the shielding sheet extends to the lower end of the outer wall of the support frame.

[0022] As a further optimization solution, in order to facilitate periodic cleaning of the filter assembly, the filter assembly cleaning structure includes:

[0023] A support rod, one end of which is fixedly connected to the inner wall of the vacuum feeding device;

[0024] A bearing, which is laterally fixedly assembled on the other end of the support rod;

[0025] A rotating shaft fixedly assembled on the inner ring surface of the bearing;

[0026] A cleaning brush, which is in the shape of an elongated strip, wherein the upper bristles of the cleaning brush are in contact with the bottom surface of the filter assembly;

[0027] The first bevel gear is coaxially fixedly assembled on the lower end of the bearing;

[0028] A driving motor is fixedly mounted on the upper end of the front wall of the vacuum feeding device, and the rear end of the rotating shaft of the driving motor passes through the front wall of the vacuum feeding device;

[0029] The second bevel gear is coaxially fixedly assembled on the rear end of the rotating shaft of the driving motor, and the second bevel gear is meshed with the first bevel gear.

[0030] As a further optimization scheme, in order to realize vacuum feeding, the vacuum feeding device further includes:

[0031] The lower outer cylinder has a conical material collection bin integrally formed coaxially at its lower end;

[0032] An upper round cover is screwed to the upper end of the lower outer cylinder, and the filter assembly is transversely fixedly assembled in the upper round cover;

[0033] A vacuum generator is fixedly mounted on the upper surface of the upper circular cover, and an input end of the vacuum generator extends into the upper circular cover;

[0034] A discharge pipe with a valve, which is fixedly connected to the middle of the bottom surface of the conical collecting bin;

[0035] The suction pipeline has one end close to the lower outer cylinder and is fixedly connected to the upper end of the outer wall of the lower outer cylinder.

[0036] As a further optimization scheme, in order to facilitate the suction, the suction pipeline includes:

[0037] A pipeline body, one end of which is close to the lower outer tube and is fixedly connected to the upper end of the outer wall of the lower outer tube, and a valve is provided on one side of the pipeline body close to the lower outer tube;

[0038] The conical suction nozzle is coaxially fixedly connected to the end of the pipeline body away from the lower outer cylinder.

[0039] As a further optimization solution, in order to separate powder and air, the filter assembly includes:

[0040] A limiting ring, which is fixedly assembled on the inner ring surface of the upper circular cover;

[0041] The filter plate is slidably inserted in the upper circular cover, and the bottom edge of the filter plate abuts against the limiting ring.

[0042] As a further optimization solution, in order to stably support the device, the support frame includes:

[0043] There are two support columns, the upper ends of which are fixedly mounted on the lower ends of the outer walls of the vacuum feeding device, and the lower ends of which are fixedly mounted with support plates.

[0044] The utility model provides a vacuum feeder with safety protection function through improvement, which has the following improvements and advantages compared with the prior art:

[0045] First, the upper end of the outer wall of the device is shielded and protected by the upper shielding and protection component, and the lower end of the outer wall of the device is shielded and protected by the lower shielding and protection component; the filter component is periodically cleaned by the filter component cleaning structure, and the above measures are used to enhance the safety protection measures of the vacuum feeder.

[0046] Secondly, the vacuum feeding device can be split into two parts, the upper and lower parts, to facilitate the maintenance of the interior and the cleaning structure of the filter assembly. The bristles of the cleaning brush in the cleaning structure of the filter assembly are glued on and can be disassembled and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0048] Figure 1 It is a schematic diagram of the structure of the utility model;

[0049] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0050] Figure 3 It is a schematic diagram of the filter assembly cleaning structure and filter assembly structure of the utility model;

[0051] Figure 4 This is a schematic diagram of the cleaning brush structure of the utility model;

[0052] Figure 5 It is a right side structural schematic diagram of the first bevel gear and the second bevel gear of the utility model;

[0053] Figure 6 This is a schematic diagram of the vacuum feeding device and the support frame structure of the utility model.

[0054] Description of reference numerals:

[0055] 1-vacuum feeding device, 11-lower outer cylinder, 12-upper round cover, 13-vacuum generator, 14-conical collecting bin, 15-discharge pipe with valve, 16-suction pipeline, 161-pipeline body, 162-valve, 163-conical suction nozzle, 17-filter assembly, 171-limiting ring, 172-filter plate, 2-outer ring, 3-upper shielding protection assembly, 31-fan-shaped baffle, 32-joining connector, 321-first connecting plate, 322-first Two connecting plates, 323-slots, 324-plug plates, 325-fixing bolts, 33-fan-shaped rubber pads, 4-lower side shielding and protection components, 41-elastic metal plates, 42-discharging windows, 43-shielding cloth sheets, 5-support frames, 51-support columns, 52-support plates, 6-filter assembly cleaning structures, 61-support rods, 62-bearings, 63-rotating shafts, 64-cleaning brushes, 65-first bevel gears, 66-second bevel gears, 67-driving motors. DETAILED DESCRIPTION

[0056] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are 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.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0058] In the description of the present utility model, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0059] See also Figure 1-6 The utility model provides a technical solution: a vacuum feeder with safety protection function, comprising:

[0060] Vacuum feeding device 1;

[0061] The outer ring 2 is fixedly sleeved on the middle part of the outer wall of the vacuum feeding device 1;

[0062] An upper shielding and protection component 3 is slidably sleeved on the upper end of the outer wall of the vacuum feeding device 1, and the lower end of the upper shielding and protection component 3 abuts against the outer ring 2;

[0063] A lower shielding and protection assembly 4, the upper end of which is fixedly assembled at the outer edge of the bottom surface of the outer ring 2;

[0064] A support frame 5, which is fixedly mounted on the lower end of the outer wall of the vacuum feeding device 1;

[0065] The filter assembly cleaning structure 6 is fixedly assembled at the upper end of the inner cavity of the vacuum feeding device 1 . The vacuum feeding device 1 includes a filter assembly 17 arranged at the upper end of its inner cavity. The upper end of the filter assembly cleaning structure 6 is in contact with the bottom surface of the filter assembly 17 .

[0066] The upper end of the outer wall of the device is shielded and protected by the upper shielding and protection component 3, and the lower end of the outer wall of the device is shielded and protected by the lower shielding and protection component 4; the filter component 17 is periodically cleaned by the filter component cleaning structure 6, and the above measures are used to enhance the safety protection measures of the vacuum feeder.

[0067] In some embodiments, in order to shield and protect the upper end of the outer wall of the device, the upper shielding and protection component 3 includes:

[0068] There are four fan-shaped baffles 31, which are circumferentially distributed around the upper end of the outer wall of the vacuum feeding device 1. A splicing connector group is fixedly connected between adjacent fan-shaped baffles 31, and the splicing connector group consists of three splicing connectors 32 distributed longitudinally;

[0069] There are four fan-shaped rubber pads 33 , which are respectively adhered and fixed to the inner side surface of the fan-shaped baffle 31 , and the inner side surface of the fan-shaped rubber pads 33 is in contact with the outer wall of the vacuum feeding device 1 .

[0070] When being bumped or hit, the fan-shaped baffle 31 contacts the impact object. The fan-shaped baffle 31 is made of hard materials such as steel plates. The fan-shaped baffle 31 transmits the impact force to the fan-shaped rubber pad 33, and the fan-shaped rubber pad 33 deforms to buffer the impact force. The splicing connector 32 is detachable.

[0071] In some embodiments, in order to enable the four sector-shaped baffles 31 to be spliced ​​into a whole and to be disassembled, the splicing connector 32 includes:

[0072] A first connecting plate 321, one end of which is fixedly connected to the outer wall of the adjacent fan-shaped baffle 31, and a slot 323 is formed at the inner side edge of the other end of the first connecting plate 321;

[0073] A second connecting plate 322, one end of which is fixedly connected to the outer wall of the adjacent sector-shaped baffle 31, and the other end of the second connecting plate 322 is integrally formed with an inserting plate 324, which is inserted into the slot 323;

[0074] The fixing bolt 325 passes through the insert plate 324, and the end of the fixing bolt 325 is screwed to the bottom surface of the slot 323; by removing the fixing bolt 325, two adjacent sector baffles 31 can be disassembled, and the reverse operation can be performed during installation.

[0075] In some embodiments, in order to shield and protect the lower end of the outer wall of the device, the lower shielding protection component 4 includes:

[0076] There are at least twenty-eight elastic metal plates 41, the upper ends of the elastic metal plates 41 are welded and fixed to the bottom edge of the outer ring 2, the edges of adjacent elastic metal plates 41 are fitted together, and the front sections of the twenty-eight elastic metal plates 41 are provided with discharge windows 42, and the lower ends of the elastic metal plates 41 extend to the lower end of the outer wall of the support frame 5.

[0077] When being bumped or hit, the impacting object contacts the elastic metal plate 41 , and the elastic metal plate 41 is deformed by the impact, and its lower end deforms inwards to buffer the impact; the reserved discharge window 42 is used to facilitate the discharge of the valved discharge pipe 15 .

[0078] In some embodiments, in order to provide dust protection for the valved discharge pipe 15 , a shielding sheet 43 is fixedly attached to the top surface of the discharge window 42 , and the lower end of the shielding sheet 43 extends to the lower end of the outer wall of the support frame 5 .

[0079] In some embodiments, in order to facilitate periodic cleaning of the filter assembly 17, the filter assembly cleaning structure 6 includes:

[0080] A support rod 61, one end of which is fixedly connected to the inner wall of the vacuum feeding device 1;

[0081] A bearing 62, which is laterally fixedly mounted on the other end of the support rod 6;

[0082] A rotating shaft 63, which is fixedly assembled on the inner ring surface of the bearing 62;

[0083] A cleaning brush 64, which is in the shape of an elongated strip, and the upper bristles of the cleaning brush 64 are in contact with the bottom surface of the filter assembly 17;

[0084] The first bevel gear 65 is coaxially fixedly assembled on the lower end of the bearing 62;

[0085] A driving motor 67 is fixedly mounted on the upper end of the front wall of the vacuum feeding device 1, and a rear end of a rotating shaft of the driving motor 67 passes through the front wall of the vacuum feeding device 1;

[0086] The second bevel gear 66 is coaxially fixedly assembled on the rear end of the rotating shaft of the driving motor 67 , and the second bevel gear 66 is meshed with the first bevel gear 65 .

[0087] The driving motor 67 is connected to an external power source. The driving motor 67 drives the second bevel gear 66 to rotate. The second bevel gear 66 drives the first bevel gear 65 and the rotating shaft 63 to rotate. The rotating shaft 63 drives the long strip cleaning brush 64 to rotate, and the bristles of the cleaning brush 64 are used to clean the filter assembly 17.

[0088] In some embodiments, in order to achieve vacuum feeding, the vacuum feeding device 1 further includes:

[0089] The lower outer cylinder 11 has a conical material collecting bin 14 integrally formed coaxially at its lower end;

[0090] The upper round cover 12 is screwed to the upper end of the lower outer cylinder 11, and the filter assembly 17 is transversely fixedly assembled in the upper round cover 12;

[0091] A vacuum generator 13 is fixedly mounted on the upper surface of the upper circular cover 12, and an input end of the vacuum generator 13 extends into the upper circular cover 12;

[0092] A discharge pipe 15 with a valve, which is fixedly connected to the middle of the bottom surface of the conical collecting bin 14;

[0093] The suction pipe 16 has one end close to the lower outer cylinder 11 and is fixedly connected to the upper end of the outer wall of the lower outer cylinder 11 .

[0094] In some embodiments, the suction line 16 includes:

[0095] The pipeline body 161, one end of which is close to the lower outer tube 11, is fixedly connected to the upper end of the outer wall of the lower outer tube 11, and a valve 162 is provided on one side of the pipeline body 161 close to the lower outer tube 11;

[0096] The conical suction nozzle 163 is coaxially fixedly connected to the end of the pipeline body 161 away from the lower outer cylinder 11 .

[0097] The vacuum generator 13 is used to generate a vacuum, which acts on the suction pipe 16 to suck external powdered materials from the suction pipe 16. The materials enter the device and are separated by the filter component 17, and the air is discharged. After the vacuum generator 13 is stopped, the filtered powdered materials fall back into the conical collecting bin 14, and the valve of the valved discharge pipe 15 is opened to discharge the powdered materials.

[0098] In some embodiments, in order to separate powder and air, the filter assembly 17 includes:

[0099] A limiting ring 171, which is fixedly assembled on the inner annular surface of the upper circular cover 12;

[0100] The filter plate 172 is slidably inserted into the upper circular cover 12 , and the bottom edge of the filter plate 172 abuts against the limiting ring 171 .

[0101] In some embodiments, in order to stably support the device, the support frame 5 includes:

[0102] There are two support columns 51, the upper ends of which are fixedly mounted on the lower ends of the outer walls of the vacuum feeding device 1, and the lower ends of the support columns 51 are fixedly mounted with support plates 52, and the setting of the support plates 52 increases the contact area with the ground.

[0103] Working principle: The upper end of the outer wall of the device is shielded and protected by the upper shielding and protection component 3, and the lower end of the outer wall of the device is shielded and protected by the lower shielding and protection component 4; the filter component 17 is periodically cleaned by the filter component cleaning structure 6, and the above measures are used to enhance the safety protection measures of the vacuum feeder.

[0104] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A vacuum feeder with safety protection function, characterized in that: include: Vacuum feeding device (1); An outer ring (2) is fixedly sleeved on the middle part of the outer wall of the vacuum feeding device (1); An upper shielding and protection component (3) is slidably sleeved on the upper end of the outer wall of the vacuum feeding device (1), and the lower end of the upper shielding and protection component (3) abuts against the outer ring (2); A lower shielding protection component (4), the upper end of which is fixedly mounted on the outer edge of the bottom surface of the outer ring (2); A support frame (5) fixedly mounted on the lower end of the outer wall of the vacuum feeding device (1); A filter assembly cleaning structure (6) is fixedly mounted on the upper end of the inner cavity of a vacuum feeding device (1). The vacuum feeding device (1) comprises a filter assembly (17) arranged on the upper end of the inner cavity thereof. The upper end of the filter assembly cleaning structure (6) is in contact with the bottom surface of the filter assembly (17).

2. A vacuum feeder with safety protection function according to claim 1, characterized in that: The upper shielding protection component (3) comprises: There are four fan-shaped baffles (31), which are circumferentially distributed around the upper end of the outer wall of the vacuum feeding device (1), and a splicing connection member group is fixedly connected between adjacent fan-shaped baffles (31), and the splicing connection member group is composed of three splicing connection members (32) distributed longitudinally; There are four fan-shaped rubber pads (33), which are respectively adhered and fixed to the inner side surface of the fan-shaped baffle (31), and the inner side surface of the fan-shaped rubber pads (33) is in contact with the outer wall of the vacuum feeding device (1).

3. A vacuum feeder with safety protection function according to claim 2, characterized in that: The splicing connector (32) comprises: A first connecting plate (321), one end of which is fixedly connected to the outer wall of the adjacent sector-shaped baffle (31), and a slot (323) is provided at the inner side edge of the other end of the first connecting plate (321); A second connecting plate (322), one end of which is fixedly connected to the outer wall of the adjacent sector-shaped baffle (31), and the other end of the second connecting plate (322) is integrally formed with an inserting plate (324), and the inserting plate (324) is inserted into the slot (323); A fixing bolt (325) passes through the inserting plate (324), and the end of the fixing bolt (325) is screwed onto the bottom surface of the slot (323).

4. A vacuum feeder with safety protection function according to claim 1, characterized in that: The lower shielding protection component (4) comprises: There are at least twenty-eight elastic metal plates (41), the upper ends of the elastic metal plates (41) are welded and fixed to the bottom edge of the outer ring (2), the edges of adjacent elastic metal plates (41) are fitted together, the front sections of the twenty-eight elastic metal plates (41) are provided with discharge windows (42), and the lower ends of the elastic metal plates (41) extend to the lower end of the outer wall of the support frame (5).

5. A vacuum feeder with safety protection function according to claim 4, characterized in that: A shielding cloth sheet (43) is glued and fixed to the top surface of the discharge window (42), and the lower end of the shielding cloth sheet (43) extends to the lower end of the outer wall of the support frame (5).

6. The vacuum feeder with safety protection function according to claim 1, characterized in that: The filter assembly cleaning structure (6) comprises: A support rod (61), one end of which is fixedly connected to the inner wall of the vacuum feeding device (1); A bearing (62) is laterally fixedly mounted on the other end of the support rod (61); A rotating shaft (63) fixedly assembled on the inner ring surface of the bearing (62); A cleaning brush (64) in the shape of an elongated strip, wherein the bristles at the upper end of the cleaning brush (64) are in contact with the bottom surface of the filter assembly (17); A first bevel gear (65) is coaxially fixedly mounted on the lower end of the bearing (62); A driving motor (67) is fixedly mounted on the upper end of the front wall of the vacuum feeding device (1), and the rear end of the rotating shaft of the driving motor (67) passes through the front wall of the vacuum feeding device (1); The second bevel gear (66) is coaxially fixedly mounted on the rear end of the rotating shaft of the driving motor (67), and the second bevel gear (66) is meshed with the first bevel gear (65).

7. The vacuum feeder with safety protection function according to claim 1, characterized in that: The vacuum feeding device (1) further comprises: The lower outer cylinder (11) has a conical material collection bin (14) integrally formed coaxially with the lower end thereof; An upper circular cover (12) is screwed to the upper end of the lower outer cylinder (11), and the filter assembly (17) is transversely fixedly assembled in the upper circular cover (12); A vacuum generator (13) is fixedly mounted on the upper surface of the upper circular cover (12), and an input end of the vacuum generator (13) extends into the upper circular cover (12); A discharge pipe (15) with a valve, which is fixedly connected to the middle of the bottom surface of the conical material collecting bin (14); The material suction pipeline (16) has one end close to the lower outer cylinder (11) and is fixedly connected to the upper end of the outer wall of the lower outer cylinder (11).

8. The vacuum feeder with safety protection function according to claim 7, characterized in that: The material suction pipeline (16) comprises: A pipeline body (161), one end of which is close to the lower outer tube (11) and is fixedly connected to the upper end of the outer wall of the lower outer tube (11), and a valve (162) is provided on one side of the pipeline body (161) close to the lower outer tube (11); The conical suction nozzle (163) is coaxially fixedly connected to an end of the pipeline body (161) away from the lower outer cylinder (11).

9. The vacuum feeder with safety protection function according to claim 7, characterized in that: The filter assembly (17) comprises: A limiting ring (171) is fixedly mounted on the inner ring surface of the upper circular cover (12); The filter plate (172) is slidably inserted into the upper circular cover (12), and the bottom edge of the filter plate (172) abuts against the limiting ring (171).

10. The vacuum feeder with safety protection function according to claim 1, characterized in that: The support frame (5) comprises: There are two support columns (51), the upper ends of the support columns (51) are fixedly mounted on the lower ends of the outer walls of the vacuum feeding device (1), and the lower ends of the support columns (51) are fixedly mounted with support plates (52).

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