Energy-saving suction device for plastic production

Abstract

The utility model belongs to the technical field of plastic production, and particularly relates to an energy-saving material suction device for plastic production, which comprises a sleeve, the bottom and the top of the sleeve are respectively and fixedly connected with a connecting pipe and a fastening pipe, and the sleeve is communicated with the connecting pipe and the fastening pipe; by arranging the sleeve and arranging a plurality of fixing plates in the sleeve, the device can effectively fix gas conveying pipes of external gas sources with different calibers, by arranging the reinforcing assembly for cooperation, the device can firmly fix the gas conveying pipes of the external gas sources, the gas conveying pipes are prevented from falling off from the sleeve in the ventilation process, and the gas conveying pipes are prevented from falling off from the sleeve in the ventilation process. By arranging a plurality of springback assemblies, the second sealing ring can still reset after being extruded by an air inlet pipe at an air inlet of a blowing device on the material suction machine, then it is guaranteed that the device is connected with the air inlet pipe at the air inlet of the blowing device to drive air tightness, and the device is simple in structure, convenient to install and capable of being suitable for being used for air conveying pipes with different inner diameters.

Description

Technical Field

[0001] The utility model belongs to the technical field of plastic production, and in particular relates to an energy-saving material suction device used in plastic production. Background Art

[0002] Suction machines are widely used in the raw material conveying industry for injection molding machines, extruders and other equipment. The working principle is that the control device starts the vacuum pump to extract the air in the hopper, and at the same time closes the blanking valve device in the hopper to generate negative pressure in the hopper. Under the action of negative pressure, the material in the storage barrel is carried into the hopper by the air flow through the feed pipe. When the feeding time is over, the vacuum pump stops working, and the valve of the blanking valve device inside the hopper is pushed open by the material, and the material flows out of the hopper into the injection molding machine or extruder or other equipment. There is a purge device in the suction machine, which is often supplemented with air through an external air source, and generates high pressure to purge the plastic on the suction machine diaphragm net and in the suction machine to remove dust and moisture on the plastic surface, so as to improve the quality of plastic raw materials.

[0003] For example, the Chinese patent with publication number CN210312523U discloses a nozzle-type back-blowing device for a vacuum suction machine, including a base arranged on a filter cartridge and an air bag arranged on the base. The key is that the air bag includes an upper cover and a lower cover, the upper cover is provided with a piston chamber and a matching piston communicating with the air inlet channel, the lower cover is provided with a back-blowing pipe, the upper end of the back-blowing pipe is docked at the bottom of the piston chamber, and the lower end is connected to a nozzle, and the nozzle extends into the filter cartridge. With the help of a pneumatic control valve, during inflation, the compressed air presses the piston downward, causing the piston to block the back-blowing pipe, and the compressed air is stored in the air bag. During back-blowing, the air inlet channel is depressurized, and the compressed air in the air bag pushes the piston upward to block the air inlet channel, and the compressed air is instantly released from the back-blowing pipe. The nozzle is used to disperse and guide the airflow, so that the dust on the filter cartridge is swept away from top to bottom.

[0004] This patent has some shortcomings when used, such as: during the application of the purge device in the suction machine, the device needs to be supplied with air through an external air hose, and the diameter of its air inlet is relatively fixed, and can only fix the matching air hose. When the inner diameter of the air hose is small, its air supply efficiency is low, so the suction efficiency of the suction device cannot be improved. In addition, the fixation between the air inlet of the device and the air hose needs to be fixed with the help of an external fastening device, which is cumbersome during disassembly and installation, and the overall installation and disassembly efficiency is relatively low. In view of this, we propose an energy-saving suction device for plastic production. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-saving material suction device for plastic production to solve the problems raised in the above background technology.

[0006] In view of this, the utility model provides an energy-saving material suction device for plastic production, comprising:

[0007] A sleeve, wherein the bottom and the top of the sleeve are respectively fixedly connected with a connecting pipe and a fastening pipe, the sleeve is connected with the connecting pipe and the fastening pipe, and a through hole with a T-shaped cross section is opened in the sleeve;

[0008] The sliding rod is located at the axis of the sleeve, and the outer wall of the sliding rod is sleeved with two sliding sleeves, the sliding sleeve located at the upper end is fixedly connected to the upper end of the sliding rod, and the sliding sleeve located at the lower end is slidably matched with the circumferential side wall of the sliding rod, and the circumferential side wall of the sliding sleeve is fixedly connected with a plurality of connecting heads distributed equidistantly around the circumference, and a connecting rod is rotatably mounted on the connecting head, and the other ends of the two connecting rods on the two sliding sleeves and located on the same vertical axis are provided with connecting plates, and the two connecting rods are rotatably connected to the protrusions on the side walls of the connecting plates, and a fixing plate is rotatably mounted on the side of the connecting plate away from the connecting rod;

[0009] A driving assembly, the driving assembly is located on the slide rod and is used to drive the slide sleeve located below to move in a vertical direction along the slide rod;

[0010] An expansion groove, the expansion groove is arranged in the inner cavity of the connecting pipe near the bottom, and a second sealing ring is fixedly connected in the connecting pipe near the expansion groove;

[0011] A plurality of rebound components, which are equidistantly distributed around the circumference and are all located on the circumferential side wall of the second sealing ring, and are used to reset the upper half of the second sealing ring;

[0012] A reinforcement component is located in the fastening tube and is used to reinforce the gas delivery hose when it passes into the casing.

[0013] In the present technical scheme, a sleeve is provided and a plurality of fixing plates are provided inside the sleeve, and the plurality of fixing plates are used to fit with the inner wall of the sleeve to fix the air pipes of different calibers, so that the present device can effectively fix the air pipes of external air sources of different calibers, and a reinforcement component is provided for cooperation, so that the present device can firmly fix the air pipes of the external air source to prevent the air pipes from falling off from the sleeve during ventilation, and a plurality of rebound components are provided so that the sealing ring 2 can still be reset after being squeezed by the air inlet pipe at the air inlet of the purge device on the suction machine, thereby ensuring the air tightness of the connection between the present device and the air inlet pipe at the air inlet of the purge device, and the present device has a simple structure and is easy to install, and can adapt to the use of air pipes with different inner diameters, and the air supply efficiency of the purge device is improved by replacing the air pipe of the corresponding caliber, thereby improving the suction efficiency of the suction machine during the production process.

[0014] In the above technical solution, further, the driving component includes:

[0015] A cross-shaped groove is provided on the slide rod, a threaded rod is rotatably installed in the cross-shaped groove, a micro motor is fixedly installed at the bottom end of the slide rod, and the output shaft of the micro motor passes through the bottom surface of the slide rod and extends into the cross-shaped groove to be coaxially connected to the threaded rod, a threaded block adapted to the cross-shaped groove is slidably connected in the cross-shaped groove, protrusions at both ends of the threaded block are fixed to the circumferential inner wall of the sliding sleeve located below, and the threaded block is threadedly matched with the threaded rod.

[0016] In the present technical solution, by providing a driving assembly, it is convenient to control the displacement of the sliding sleeve below in the vertical direction, thereby controlling the opening and closing of multiple fixing plates to achieve the fixing and releasing of the gas pipe.

[0017] In the above technical solution, further, a support frame fixed to the inner wall of the sleeve is provided at the bottom of the slide rod, and the support frame is fixed to the slide rod.

[0018] In the technical solution, a support frame is provided so that the slide rod can be fixed to the inner wall of the connecting pipe.

[0019] In the above technical solution, further, a sealing ring 1 is fixedly installed in the inner cavity of the sleeve and is located directly below the multiple fixing plates.

[0020] In the technical solution, a sealing ring is provided to ensure the air tightness of the connection between the gas pipe and the casing, thereby avoiding air leakage during ventilation.

[0021] In the above technical solution, further, the rebound component includes:

[0022] The groove is opened on the inner wall of the stretching groove, and a support plate fixed to the two circumferential side walls of the sealing ring is slidably connected in the groove. A spring is arranged between the support plate and the groove, and the two ends of the spring are respectively fixed to the inner wall of the groove and the side wall of the support plate.

[0023] In the present technical solution, a plurality of rebound components are provided so that the sealing ring 2 can still be reset after being squeezed by the air inlet pipe at the air inlet of the purge device on the suction machine, thereby ensuring the air tightness of the connection between the device and the air inlet pipe at the air inlet of the purge device.

[0024] In the above technical solution, further, a plurality of linearly equidistantly distributed circular grooves are provided on the inner wall of the connecting pipe and located above the stretching groove, and a sealing ring three is installed in the circular groove.

[0025] In the technical solution, multiple sealing rings are provided to ensure the air tightness between the connecting pipe and the air inlet pipe at the air inlet of the purge device on the suction machine.

[0026] In the above technical solution, further, the reinforcement component includes:

[0027] A storage groove is provided on the inner wall of the fastening tube, a semi-arc-shaped fixing ring is symmetrically inserted in the storage groove, threaded holes are symmetrically provided on the circumferential side wall of the fastening tube, and a threaded knob is threadedly connected to the threaded hole, one end of the threaded knob passes through the threaded hole and rotates with the corresponding fixing ring, and an anti-slip layer is provided on the inner wall of the fixing ring.

[0028] In the present technical solution, by providing a reinforcement component, the stability and firmness of the connection between the gas pipeline of the external gas source and the present device are further ensured.

[0029] The beneficial effects of the utility model are:

[0030] 1. The energy-saving material suction device for plastic production is provided with a sleeve and multiple fixing plates in the sleeve. The multiple fixing plates are fitted with the inner wall of the sleeve to fix the gas pipes of different calibers, so that the device can effectively fix the gas pipes of external gas sources of different calibers. The reinforcement components are provided to cooperate, so that the device can firmly fix the gas pipes of the external gas source to prevent the gas pipes from falling off from the sleeve during ventilation.

[0031] 2. The energy-saving suction device for plastic production is provided with a plurality of rebound components so that the sealing ring 2 can still be reset after being squeezed by the air inlet pipe at the air inlet of the purge device on the suction machine, thereby ensuring the air tightness of the connection between the device and the air inlet pipe at the air inlet of the purge device. The device has a simple structure and is easy to install, and can adapt to the use of air pipes with different inner diameters. By replacing the air pipes with corresponding calibers to improve the air supply efficiency of the purge device, the suction efficiency of the suction machine during the production process is improved.

[0032] 3. The energy-saving suction device for plastic production has an inner cavity provided with a sealing ring 1, multiple sealing rings 3 and a sealing ring 2, which greatly improves the air tightness of the device as an intermediate connecting piece, and ensures the air tightness of the connection between the air supply pipe of the external air source and the air inlet pipe at the air inlet of the purge device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0034] Figure 2 It is a structural schematic diagram of the reinforcement component in the utility model;

[0035] Figure 3 This is a schematic diagram of the structural distribution of the inner cavity parts of the casing in the utility model;

[0036] Figure 4This is a structural exploded view of the slide bar, micro motor and support frame in the utility model;

[0037] Figure 5 It is a structural schematic diagram of the connecting plate in the utility model;

[0038] Figure 6 It is a structural schematic diagram of the driving component in the utility model;

[0039] Figure 7 This is a structural cross-sectional view of the fastening pipe in the utility model;

[0040] Figure 8 This is a structural sectional exploded view of the fastening tube and the sealing ring 2 in the utility model;

[0041] Fig. 9 It is a structural cross-sectional view of the fastening tube in the utility model (in front view).

[0042] The symbols in the figure are:

[0043] 1. Sleeve; 2. Connecting tube; 3. Fastening tube; 4. Sliding rod; 5. Cross groove; 6. Threaded rod; 7. Micro motor; 8. Support frame; 9. Threaded block; 10. Sliding sleeve; 11. Connecting head; 12. Connecting rod; 13. Connecting plate; 14. Fixing plate; 15. Sealing ring 1; 16. Extension groove; 17. Groove; 18. Circular groove; 19. Sealing ring 2; 20. Support plate; 21. Spring; 22. Sealing ring 3; 23. Storage groove; 24. Fixing ring; 25. Threaded knob. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0045] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0046] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0047] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0048] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0049] Embodiment 1:

[0050] See also Figure 1 - Fig. 9 As shown, this embodiment provides an energy-saving material suction device for plastic production, comprising:

[0051] The sleeve 1 has a connecting pipe 2 and a fastening pipe 3 fixedly connected to the bottom and top of the sleeve 1, respectively. The sleeve 1 is connected to the connecting pipe 2 and the fastening pipe 3, and a through hole with a T-shaped cross section is provided in the sleeve 1;

[0052] Sliding rod 4, the sliding rod 4 is located at the axis of the sleeve 1, and the outer wall of the sliding rod 4 is sleeved with two sliding sleeves 10, the sliding sleeve 10 located at the top is fixedly connected to the upper end of the sliding rod 4, and the sliding sleeve 10 located at the bottom is slidably matched with the circumferential side wall of the sliding rod 4, and the circumferential side wall of the sliding sleeve 10 is fixedly connected with a plurality of connecting heads 11 distributed equidistantly around the circumference, and a connecting rod 12 is rotatably mounted on the connecting head 11, and the other ends of the two connecting rods 12 on the two sliding sleeves 10 and located on the same vertical axis are provided with a connecting plate 13, and the two connecting rods 12 are rotatably connected to the protrusions on the side wall of the connecting plate 13, and a fixing plate 14 is rotatably mounted on the side of the connecting plate 13 away from the connecting rod 12;

[0053] A driving assembly, which is located on the slide rod 4 and is used to drive the slide sleeve 10 located below to move in a vertical direction along the slide rod 4;

[0054] An expansion groove 16 is provided in the inner cavity of the connecting pipe 2 near the bottom, and a sealing ring 19 is fixedly connected in the connecting pipe 2 near the expansion groove 16;

[0055] A plurality of rebound components, which are equidistantly distributed around the circumference and are all located on the circumferential side wall of the second sealing ring 19, and are used to reset the upper half of the second sealing ring 19;

[0056] The reinforcement component is located in the fastening tube 3 and is used to reinforce the gas delivery hose when it passes into the sleeve 1.

[0057] The air inlet pipe 2 is inserted into the air inlet of the purge device on the suction machine, and the air inlet pipe is first inserted through the sealing ring 19 to squeeze the upper part of the sealing ring 19. The upper part of the sealing ring 19 is squeezed into the expansion groove 16. Combined with the support frame 8 in the figure of the specification, the bottom edge of the expansion groove 16 is in the shape of an arc, which can ensure the smooth entry of the upper part of the sealing ring 19. It is worth noting that the sealing ring 19 is elastic and the circumferential inner wall of the sealing ring 19 is a truncated cone-shaped inclined surface. Specifically, the upper inner diameter of the sealing ring 19 is smaller than the lower inner diameter. When the inverted triangular ring protrusion on the air inlet pipe completely passes through the sealing ring 19, the inverted triangular ring of the air inlet pipe fits with the inner cavity surface wall of the connecting pipe 2. The upper half of the sealing ring 19 is restored under the action of multiple rebound components, and the air inlet pipe and the connecting pipe 2 are sealed. Then, the air supply pipe of the external air source is connected. The cam 12 is engaged with the cam 13 and the cam 14 is engaged with the cam 13. The cam 12 is engaged with the cam 13 and the cam 13 is engaged with the cam 13. The cam 12 is engaged with the cam 13 and the cam 13 is engaged with the cam 13.

[0058] By setting a sleeve 1 and setting a plurality of fixing plates 14 in the sleeve 1, the plurality of fixing plates 14 are used to fit with the inner wall of the sleeve 1 to fix the gas pipes of different calibers, so that the device can effectively fix the gas pipes of external gas sources of different calibers, and by setting a reinforcement component for cooperation, the device can firmly fix the gas pipes of the external gas source to prevent the gas pipes from falling off from the sleeve 1 during ventilation, and by setting a plurality of rebound components, the sealing ring 19 can still be reset after being squeezed by the air inlet pipe at the air inlet of the purge device on the suction machine, thereby ensuring the air tightness of the connection between the device and the air inlet pipe at the air inlet of the purge device. The device has a simple structure and is easy to install, and can adapt to the use of gas pipes with different inner diameters. The air supply efficiency of the purge device is improved by replacing the gas pipe of the corresponding caliber, thereby improving the suction efficiency of the suction machine during the production process.

[0059] Embodiment 2:

[0060] This embodiment provides an energy-saving material suction device for plastic production. In addition to the technical solutions of the above embodiments, it also has the following technical features. The driving component includes:

[0061] A cross-shaped groove 5 is provided on the slide bar 4, a threaded rod 6 is rotatably installed in the cross-shaped groove 5, a micro motor 7 is fixedly installed at the bottom end of the slide bar 4, and the output shaft of the micro motor 7 passes through the bottom surface of the slide bar 4 and extends into the cross-shaped groove 5 to be coaxially connected with the threaded rod 6, a threaded block 9 adapted to the cross-shaped groove 5 is slidably connected in the cross-shaped groove 5, protrusions at both ends of the threaded block 9 are fixed to the circumferential inner wall of the sliding sleeve 10 located below, and the threaded block 9 is threadedly matched with the threaded rod 6.

[0062] When the driving component is working, the micro motor 7 is started, the output shaft of the micro motor 7 rotates and drives the threaded rod 6 to rotate. Under the action of the thread force, the thread block 9 can be displaced in the vertical direction along the cross groove 5 and drive the sliding sleeve 10 below to move synchronously, thereby controlling the opening and closing of multiple fixed plates 14.

[0063] By providing a driving assembly, it is convenient to control the displacement of the sliding sleeve 10 below in the vertical direction, thereby controlling the opening and closing of the plurality of fixing plates 14 to achieve the fixing and releasing of the gas pipe.

[0064] Embodiment 3:

[0065] This embodiment provides an energy-saving material suction device for plastic production. In addition to the technical solutions of the above embodiments, it also has the following technical features: a support frame 8 fixed to the inner wall of the sleeve 1 is provided at the bottom of the slide rod 4, and the support frame 8 is fixed to the slide rod 4.

[0066] By providing the support frame 8 , the slide rod 4 can be fixed to the inner wall of the connecting pipe 2 .

[0067] Embodiment 4:

[0068] This embodiment provides an energy-saving suction device for plastic production. In addition to the technical solutions of the above embodiments, it also has the following technical features: a sealing ring 15 is fixedly installed in the inner cavity of the sleeve 1 and directly below the multiple fixed plates 14.

[0069] Among them, the gas supply pipe end of the external gas source can resist the sealing ring 15 when inserted.

[0070] By providing a sealing ring 15, the air tightness of the connection between the gas pipe and the sleeve 1 is ensured to avoid air leakage during ventilation.

[0071] Embodiment 5:

[0072] This embodiment provides an energy-saving material suction device for plastic production. In addition to the technical solutions of the above embodiments, it also has the following technical features. The rebound component includes:

[0073] The groove 17 is provided on the inner wall of the stretching groove 16, and a support plate 20 fixed to the circumferential side wall of the sealing ring 19 is slidably connected in the groove 17. A spring 21 is provided between the support plate 20 and the groove 17, and the two ends of the spring 21 are respectively fixed to the inner wall of the groove 17 and the side wall of the support plate 20.

[0074] Among them, when the upper half of the sealing ring 2 19 is squeezed by the inverted triangular ring of the air inlet pipe and pressed into the stretching groove 16, the multiple support plates 20 will also slide into the groove 17 and squeeze the corresponding springs 21. When the inverted triangular ring of the air inlet pipe passes, under the action of the multiple springs 21, the support plates 20 can push the upper half of the sealing ring 2 19 to reset and restore the sealing ring 2 19.

[0075] By providing a plurality of rebound components, the sealing ring 19 can still be reset after being squeezed by the air inlet pipe at the air inlet of the purge device on the suction machine, thereby ensuring the air tightness of the connection between the device and the air inlet pipe at the air inlet of the purge device.

[0076] Embodiment 6:

[0077] This embodiment provides an energy-saving material suction device for plastic production. In addition to the technical solutions of the above embodiments, it also has the following technical features: a plurality of linearly equidistantly distributed circular grooves 18 are provided on the inner wall of the connecting pipe 2 and above the stretching groove 16, and a sealing ring 22 is installed in the circular groove 18.

[0078] Among them, after the air inlet pipe at the air inlet of the purge device on the suction machine is inserted into the connecting pipe 2, its inner wall is three-way fitted with multiple sealing rings 22.

[0079] By providing a plurality of sealing rings 22, the air tightness between the connecting pipe 2 and the air inlet pipe at the air inlet of the purge device on the suction machine is ensured.

[0080] Embodiment 7:

[0081] This embodiment provides an energy-saving material suction device for plastic production. In addition to the technical solutions of the above embodiments, it also has the following technical features. The reinforcement component includes:

[0082] The storage groove 23 is provided on the inner wall of the fastening tube 3, and a semi-arc-shaped fixing ring 24 is symmetrically inserted in the storage groove 23. The circumferential side wall of the fastening tube 3 is symmetrically provided with threaded holes, and a threaded knob 25 is threadedly connected to the threaded hole. One end of the threaded knob 25 passes through the threaded hole and rotates with the corresponding fixing ring 24. The inner wall of the fixing ring 24 is provided with an anti-slip layer.

[0083] Among them, when the gas supply pipe of the external gas source is inserted into the sleeve 1, the installer rotates the two threaded knobs 25, and the two threaded knobs 25 are screwed inward into the inner cavity of the fastening tube 3, and push the corresponding fixing ring 24 to move inward, and clamp and fix the side wall of the gas supply pipe.

[0084] By providing the reinforcement component, the stability and firmness of the connection between the gas pipeline of the external gas source and the device are further ensured.

[0085] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. An energy-saving suction device for plastic production, characterized in that: include: A sleeve (1), wherein the bottom and top of the sleeve (1) are respectively fixedly connected to a connecting pipe (2) and a fastening pipe (3), the sleeve (1) is connected to the connecting pipe (2) and the fastening pipe (3), and a through hole with a T-shaped cross section is provided in the sleeve (1); A slide bar (4), the slide bar (4) is located at the axis of the sleeve (1), the outer wall of the slide bar (4) is sleeved with two slide sleeves (10), the upper slide sleeve (10) is fixedly connected to the upper end of the slide bar (4), the lower slide sleeve (10) is slidably matched with the circumferential side wall of the slide bar (4), the circumferential side wall of the slide sleeve (10) is fixedly connected with a plurality of connecting heads (11) distributed equidistantly around the circumference, a connecting rod (12) is rotatably mounted on the connecting head (11), the other ends of the two connecting rods (12) on the two slide sleeves (10) and located on the same vertical axis are provided with a connecting plate (13), and the two connecting rods (12) are rotatably connected to the protrusions on the side wall of the connecting plate (13), and a fixing plate (14) is rotatably mounted on the side of the connecting plate (13) away from the connecting rod (12); A driving assembly, the driving assembly being located on the slide rod (4) and being used to drive the slide sleeve (10) located below to move in a vertical direction along the slide rod (4); An expansion groove (16), the expansion groove (16) being arranged in the inner cavity of the connecting pipe (2) near the bottom, and a second sealing ring (19) being fixedly connected in the connecting pipe (2) near the expansion groove (16); A plurality of rebound components, which are equidistantly distributed around the circumference and are all located on the circumferential side wall of the second sealing ring (19), and are used to reset the upper half of the second sealing ring (19); A reinforcement component is located in the fastening tube (3) and is used to reinforce the gas delivery hose when it passes into the sleeve (1).

2. The energy-saving material suction device for plastic production according to claim 1 is characterized in that: The drive assembly comprises: A cross-shaped groove (5), the cross-shaped groove (5) is provided on the slide bar (4), a threaded rod (6) is rotatably installed in the cross-shaped groove (5), a micro motor (7) is fixedly installed at the bottom end of the slide bar (4), and the output shaft of the micro motor (7) passes through the bottom surface of the slide bar (4) and extends into the cross-shaped groove (5) to be coaxially connected with the threaded rod (6), a threaded block (9) adapted to the cross-shaped groove (5) is slidably connected in the cross-shaped groove (5), both end protrusions of the threaded block (9) are fixed to the circumferential inner wall of the sliding sleeve (10) located below, and the threaded block (9) is threadably matched with the threaded rod (6).

3. An energy-saving material suction device for plastic production according to claim 1 or 2, characterized in that: A support frame (8) fixed to the inner wall of the sleeve (1) is provided at the bottom of the slide rod (4), and the support frame (8) is fixed to the slide rod (4).

4. The energy-saving material suction device for plastic production according to claim 1 is characterized in that: A sealing ring (15) is fixedly installed in the inner cavity of the sleeve (1) and directly below the plurality of fixing plates (14).

5. The energy-saving material suction device for plastic production according to claim 1, characterized in that: The rebound assembly comprises: A groove (17) is provided on the inner wall of the stretching groove (16), a support plate (20) is slidably connected in the groove (17) and is fixed to the circumferential side wall of the second sealing ring (19), a spring (21) is provided between the support plate (20) and the groove (17), and two ends of the spring (21) are respectively fixed to the inner wall of the groove (17) and the side wall of the support plate (20).

6. The energy-saving material suction device for plastic production according to claim 1, characterized in that: A plurality of linearly equidistantly distributed circular grooves (18) are provided on the inner wall of the connecting pipe (2) and above the stretching groove (16), and a sealing ring (22) is installed in the circular groove (18).

7. The energy-saving material suction device for plastic production according to claim 1, characterized in that: The reinforcement component comprises: A receiving groove (23) is provided on the inner wall of the fastening tube (3), a semi-arc-shaped fixing ring (24) is symmetrically inserted in the receiving groove (23), threaded holes are symmetrically provided on the circumferential side wall of the fastening tube (3), and a threaded knob (25) is threadedly connected to the threaded hole, one end of the threaded knob (25) passes through the threaded hole and is rotatably matched with the corresponding fixing ring (24), and an anti-slip layer is provided on the inner wall of the fixing ring (24).

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