Automatic conveying device for screw production

Abstract

The invention belongs to the technical field of screw production, and discloses an automatic conveying device for screw production, which comprises a conveying device supporting table and further comprises a conveying vibration disc mechanism, and the conveying vibration disc mechanism is arranged in the middle of the top end of the conveying device supporting table; the conveying rail supporting frame is arranged at the top of one side of the conveying vibration disc mechanism; according to the technical scheme, by arranging the limiting clamping plate, the driving gear and the linkage toothed plate, when the driving motor set is started, the output end can drive the driving gear to rotate, and then teeth on the surface can drive teeth on the inner side of the linkage toothed plate; the two connecting movable frames and the limiting clamping plates are smoothly driven to move oppositely, at the moment, through the change of the distance between the two limiting clamping plates, adjustment and change can be conducted along with the sizes of different screws, finally, limiting conveying of the screws of various sizes is achieved, and the use range of the device is greatly widened.

Description

Technical Field

[0001] The invention belongs to the technical field of screw production, and in particular relates to an automatic conveying device for screw production. Background Art

[0002] The automatic conveying device for screw production is an indispensable and important equipment in modern industrial production. It can effectively improve production efficiency, reduce labor costs, and ensure the accuracy and stability of screw conveying. The working principle usually involves multiple technologies such as vibration, linear vibration, and air blowing. Among them, vibration conveying is to arrange the screws in a predetermined direction through a vibrating disk and convey them to the next workpiece through a track. The vibration frequency and amplitude are adjustable to adapt to the physical properties of different screws.

[0003] The existing publication number is CN101695813B, which is a fully automatic base stapling machine, including a stapling machine, a base conveying device and a screw conveying device; the stapling machine includes a base movable positioning platform installed on a workbench, a screw positioning seat located above the base movable positioning platform and a bench drill for assembling the screws on the base; the base conveying device conveys the base to the base movable positioning platform, and the screw conveying device conveys the screws into the screw positioning seat, and the base movable positioning platform includes a fixed plate, a positioning block installed on the fixed plate, and the positioning block is provided with a guide rail for the base to slide; both ends of the positioning block are respectively provided with a pushing mechanism for pushing the base for positioning and unloading, and the pushing mechanism includes a cylinder and a pushing block connected to the cylinder piston rod; the fixed plate is located on one side of the base conveying device and is also provided with a base unloading port. The fully automatic base stapling machine using this structure can effectively improve production efficiency and reduce production costs.

[0004] The width of the sliding guide rail on the above-mentioned conveying device adopts a fixed design, and can only meet the conveying needs of screws of one diameter size. When screws of other models and sizes need to be conveyed, the corresponding adapted conveying device needs to be replaced, which greatly reduces the overall scope of use of the conveying device, so it needs to be improved. Summary of the Invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides an automatic conveying device for screw production, which has the advantage of being convenient for limited conveying of screws of different sizes.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic conveying device for screw production, comprising a conveying device support platform, and also comprising a conveying vibration disk mechanism, wherein the conveying vibration disk mechanism is arranged in the middle of the top end of the conveying device support platform; a conveying track support frame, wherein the conveying track support frame is arranged at the top of one side of the conveying vibration disk mechanism; a limiting clamping mechanism, wherein the limiting clamping mechanism is arranged inside and at the bottom of the conveying track support frame; wherein the limiting clamping mechanism includes a limiting clamping plate movably mounted on the inner side of the conveying track support frame, a connecting movable frame movably mounted in the middle part of the outer side of the conveying track support frame, the inner side of the top of the connecting movable frame is fixedly connected to the middle part of the outer side of the limiting clamping plate, a driving motor group is fixedly mounted in the middle part of the bottom end of the conveying track support frame, the bottom of the output end of the driving motor group is fixedly sleeved with a driving gear, and the inner side of the bottom end of the connecting movable frame is fixedly mounted with a linkage gear plate.

[0007] Preferably, the surface of the driving gear is meshed with the inner side of the linkage gear plate.

[0008] Preferably, there are two limit clamping plates, and the two limit clamping plates are in an eight-shaped shape.

[0009] Preferably, a control system body is provided on the inner side of the conveying device support platform.

[0010] Preferably, a limit pressing assembly is provided on the top of the inner side of the conveying track support frame, and the limit pressing assembly includes a sliding support plate, a supporting telescopic column, a limit pressing wheel and a connecting spring;

[0011] The sliding support plate is movably mounted on the top inner side of the conveying track support frame, the supporting telescopic column is arranged on the outer side of the bottom of the sliding support plate, the limiting pressing wheel is arranged on the bottom of the supporting telescopic column, and the connecting spring is arranged on the bottom of the sliding support plate;

[0012] The sliding support plate includes a first side sliding support plate, a second side sliding support plate, an upper sliding support plate and a lower sliding support plate, wherein the first side sliding support plate and the second side sliding support plate are close to 2 / 3 of the length of the lower sliding support plate, and the spacing L1 with the support frame reference surface is a fixed value; the spacing L2 with the support frame reference surface is larger than the spacing L1, and the spacing increases the closer to the upper sliding support plate; the maximum spacing L2 is 2 mm larger than the spacing L1

[0013] Preferably, the bottom of the connecting spring is fixedly connected to the top surface of the bottom end of the supporting telescopic column;

[0014] The first side sliding support plate and the second side sliding support plate are close to 1 / 3 of the length of the upper sliding support plate, and the length of their connecting springs is greater than the length of the other connecting springs, but the elastic coefficient of the connecting spring is smaller; the length of their supporting telescopic columns is greater than that of the other supporting telescopic columns.

[0015] Preferably, the inner wall of the connecting spring is slidably connected to the top surface of the supporting telescopic column.

[0016] Preferably, pneumatic components are provided on both sides of the outer top of the connecting movable frame and the top of the conveying track support frame, and the pneumatic components include a first pneumatic cylinder, a first pneumatic piston rod, a second pneumatic cylinder, a second pneumatic piston rod and a ventilation pipe;

[0017] The first pneumatic cylinder is fixedly installed on the outer side of the top of the connecting movable frame, the first pneumatic piston rod is movably installed inside the first pneumatic cylinder, the inner end of the first pneumatic piston rod is fixedly connected to both sides of the conveying track support frame, the second pneumatic cylinder is fixedly installed on both sides of the top of the conveying track support frame, the second pneumatic piston rod is movably installed inside the second pneumatic cylinder, the bottom of the second pneumatic piston rod is fixedly connected to the top of the sliding support plate, and the first pneumatic cylinder is connected to the second pneumatic cylinder through a ventilation pipe.

[0018] Preferably, the first pneumatic cylinder and the second pneumatic cylinder are of the same size.

[0019] Preferably, the ventilation pipe is made of stainless steel.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The above technical solution sets a limit clamping plate, a driving gear and a linkage tooth plate. When the driving motor group is started, the output end can drive the driving gear to rotate, and then the surface teeth can drive the teeth on the inner side of the linkage tooth plate, thereby smoothly driving the two connecting movable frames and the limit clamping plate to move towards each other. At this time, the spacing between the two limit clamping plates can be changed to adjust according to the size of different screws, and finally realize the limited delivery of screws of various sizes, greatly improving the scope of use of the device.

[0022] The present invention sets a limit pressing component and a pneumatic component. When the connecting movable frame moves toward each other, it will push the two sides of the pneumatic component to move toward each other, and then introduce the internal gas into the top of the pneumatic component, so that the partial output end of the top of the pneumatic component can smoothly push the limit pressing component as a whole downward, so as to press and stabilize the top of the screw when it slides on the conveying track support frame, avoiding the screw from tilting when it tilts and slides, causing messy conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a schematic structural diagram of the conveyor track support frame of the present invention;

[0025] Figure 3 This is a schematic structural diagram of the linkage gear plate of the present invention when viewed from above;

[0026] Figure 4 This is a schematic cross-sectional view of the drive motor assembly of the present invention;

[0027] Figure 5 Schematic diagram of the cross-sectional structure of the position limiting clamping mechanism of the present invention;

[0028] Figure 6 for Figure 5 Schematic diagram of the locally enlarged structure at point A in the middle.

[0029] In the figure: 1. Conveying device support platform; 2. Control system main body; 3. Conveying vibration plate mechanism; 4. Conveying track support frame; 5. Limit clamping mechanism; 501. Limit clamping plate; 502. Connecting movable frame; 503. Driving motor group; 504. Driving gear; 505. Linking gear plate; 6. Limit pressing assembly; 601. Sliding support plate; 6011. First side sliding support plate; 6012. Second side sliding support plate; 6013. Upper sliding support plate; 6014. Lower sliding support plate; 602. Support telescopic column; 603. Limit pressing wheel; 604. Connecting spring; 7. Pneumatic assembly; 701. First pneumatic cylinder; 702. First pneumatic piston rod; 703. Second pneumatic cylinder; 704. Second pneumatic piston rod; 705. Ventilation duct. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1 to 6As shown, the present invention provides an automatic conveying device for screw production, comprising a conveying device support platform 1, and also comprising a conveying vibration disk mechanism 3, which is arranged in the middle of the top of the conveying device support platform 1; a conveying track support frame 4, which is arranged at the top of one side of the conveying vibration disk mechanism 3; a limiting clamping mechanism 5, which is arranged inside and at the bottom of the conveying track support frame 4; wherein the limiting clamping mechanism 5 comprises a limiting clamping plate 501 movably mounted on the inner side of the conveying track support frame 4, a connecting movable frame 502 is movably mounted in the middle of the outer side of the conveying track support frame 4, the inner side of the top of the connecting movable frame 502 is fixedly connected to the middle of the outer side of the limiting clamping plate 501, a driving motor group 503 is fixedly mounted in the middle of the bottom end of the conveying track support frame 4, a driving gear 504 is fixedly sleeved on the bottom of the output end of the driving motor group 503, and a linkage gear plate 505 is fixedly mounted on the inner side of the bottom end of the connecting movable frame 502.

[0032] By starting the drive motor group 503, the output end of the drive motor group 503 can drive the active gear 504 to rotate, so as to drive the two linked tooth plates 505, the connecting movable frame 502 and the limit clamping plate 501 to move toward or away from each other. Then, the adaptability can be adjusted according to the size of the screws to be transported, so as to perform sliding transportation of screws of multiple sizes.

[0033] like Figure 3 and Figure 5 As shown, the surface of the driving gear 504 is meshed with the inner side of the linkage gear plate 505 .

[0034] The above solution is adopted: by providing a driving gear 504 and driving the motor group 503 to operate, the driving gear 504 can be driven to rotate, so as to drive the linkage gear plate 505 and the connecting movable frame 502 and the limit clamping plate 501 to move toward or away from each other, and then the clamping can be adaptively adjusted according to screws of different sizes and models.

[0035] like Figure 5 As shown, there are two limit clamping plates 501 , and the two limit clamping plates 501 are in an eight-shaped shape.

[0036] The above solution adopts the figure eight design of the limiting clamping plate 501, which can clamp and limit the screw while supporting it, so that the screw can slide smoothly through the inner side of the limiting clamping plate 501 and be transported to the specified position.

[0037] like Figure 1 As shown, a control system main body 2 is provided inside the conveying device support platform 1 .

[0038] Adopting the above solution: by providing a control system main body 2, the operator can control the operation of the conveying vibration disk mechanism 3 through the control system main body 2, so as to smoothly convey the screws inside the conveying vibration disk mechanism 3 to the top of the conveying track support frame 4.

[0039] like Figure 6 As shown, a limit pressing assembly 6 is provided on the top of the inner side of the conveying track support frame 4. The limit pressing assembly 6 includes a sliding support plate 601, a supporting telescopic column 602, a limit pressing wheel 603 and a connecting spring 604;

[0040] The sliding support plate 601 is movably mounted on the top inner side of the conveying track support frame 4, the supporting telescopic column 602 is arranged on the outer side of the bottom of the sliding support plate 601, the limiting pressing wheel 603 is arranged on the bottom of the supporting telescopic column 602, and the connecting spring 604 is arranged on the bottom of the sliding support plate 601;

[0041] The sliding support plate 601 includes a first side sliding support plate 6011, a second side sliding support plate 6012, an upper sliding support plate 6013 and a lower sliding support plate 6014, wherein the first side sliding support plate 6011 and the second side sliding support plate 6012 are close to 2 / 3 of the length of the lower sliding support plate 6014, and the spacing L1 with the reference surface of the support frame 4 is a fixed value; the spacing L2 with the reference surface of the support frame 4 is larger than the spacing L1, and the closer to the upper sliding support plate 6013, the larger the spacing; the maximum spacing L2 is 2 mm larger than the spacing L1

[0042] The above scheme is adopted: by setting a limited pressing wheel 603, since the inner end of the limited pressing wheel 603 can roll, the limited pressing wheel 603 can still maintain the smoothness of sliding on the inner side of the conveying track support frame 4 when pressing the top of the screw, so that the screw is conveyed smoothly, and the effect of the special design of the support plate 601 is as follows; when the screw just enters the conveying track support frame 4, the position of the screw is not very accurate, so a certain gap needs to be left to allow the screw to slowly return to its position during the transmission process, and when the screw is basically stuck between the two limit clamping plates 501, the spacing between the sliding support plates 601 is reduced, which can avoid the screw being forcibly squeezed into the limit clamping plate 501. This design can reduce the risk of the limit clamping plate 501 being squeezed and deformed, and improve the service life of the limit clamping plate 501.

[0043] like Figure 6 As shown, the bottom of the connecting spring 604 is fixedly connected to the top surface of the bottom end of the supporting telescopic column 602;

[0044] The first side sliding support plate 6011 and the second side sliding support plate 6012 are close to 1 / 3 of the length of the upper sliding support plate 6013, and the length of its connecting spring 604 is greater than the length of the other connecting springs 604, but the elastic coefficient of the connecting spring is smaller; the length of its supporting telescopic column 602 is greater than the length of the other supporting telescopic columns 602.

[0045] With this solution, the elastic force of the connecting spring 604 assists in driving the telescopic support column 602 to extend and retract. When the support column 602 extends, it stretches the connecting spring 604. When retracting and resetting, the spring 604 releases its elastic force, assisting in retraction. Furthermore, the special design of the telescopic support column 602 reduces the elastic pressure of the connecting spring 604 and increases its extension, allowing the screw to enter the conveyor track support frame 4 at the initial stage, avoiding excessive pressure and damage to the limit clamping plate 501, thereby effectively extending the service life of the equipment.

[0046] like Figure 6 As shown, the inner wall of the connecting spring 604 is slidably connected to the top surface of the supporting telescopic column 602.

[0047] With the above solution, when the connecting spring 604 is extended and retracted, it can smoothly move in the vertical direction along the top surface of the supporting telescopic column 602, thereby preventing the connecting spring 604 from bending during extension and retraction, thereby affecting the elastic effect.

[0048] like Figure 5 As shown, pneumatic components 7 are provided on both sides of the outer top of the connecting movable frame 502 and the top of the conveying track support frame 4. The pneumatic components 7 include a first pneumatic cylinder 701, a first pneumatic piston rod 702, a second pneumatic cylinder 703, a second pneumatic piston rod 704 and a ventilation pipe 705;

[0049] The first pneumatic cylinder 701 is fixedly installed on the outside of the top of the connecting movable frame 502, the first pneumatic piston rod 702 is movably installed inside the first pneumatic cylinder 701, the inner end of the first pneumatic piston rod 702 is fixedly connected to both sides of the conveying track support frame 4, the second pneumatic cylinder 703 is fixedly installed on both sides of the top of the conveying track support frame 4, the second pneumatic piston rod 704 is movably installed inside the second pneumatic cylinder 703, the bottom of the second pneumatic piston rod 704 is fixedly connected to the top of the sliding support plate 601, and the first pneumatic cylinder 701 is connected to the second pneumatic cylinder 703 through the ventilation pipe 705.

[0050] Adopting the above scheme: when the limit clamping plates 501 are driven to move toward each other, they will squeeze and push the two first pneumatic cylinders 701 synchronously toward each other, so that the gas in the inner cavity of the first pneumatic cylinder 701 is squeezed by the first pneumatic piston rod 702 and introduced into the interior of the second pneumatic cylinder 703 through the ventilation pipe 705, thereby pushing the second pneumatic piston rod 704 and the sliding support plate 601 to move downward as a whole.

[0051] like Figure 5 As shown, the first air cylinder 701 and the second air cylinder 703 are of the same size.

[0052] According to the above solution, since the first pneumatic cylinder 701 and the first pneumatic piston rod 702 have the same size, the inner spaces of the first pneumatic cylinder 701 and the second pneumatic cylinder 703 are the same, and the gas in the inner space of the first pneumatic cylinder 701 can be smoothly introduced into the interior of the second pneumatic piston rod 704 through the ventilation pipe 705.

[0053] like Figure 5 As shown, the ventilation pipe 705 is made of stainless steel.

[0054] The above solution is adopted: since stainless steel has excellent corrosion resistance to chemical media such as acids, alkalis, and salts, and has high tensile strength and yield strength, it can withstand high pressure and complex working conditions and is suitable for high-pressure fluid transportation. The first pneumatic piston rod 702 can compress the gas in the first pneumatic cylinder 701 to flow smoothly inside the ventilation pipe 705, so that the air pressure in the ventilation pipe 705 becomes larger and is introduced into the second pneumatic cylinder 703.

[0055] The working principle and use process of the present invention:

[0056] First, the operator can control the control system body 2 to drive the overall operation of the conveying vibration plate mechanism 3, thereby driving the screws inside the conveying vibration plate mechanism 3 to vibrate and convey to the top of the conveying track support frame 4.

[0057] Then the driving motor group 503 can be started. As the driving motor group 503 runs, the output end of the driving motor group 503 can drive the driving gear 504 to rotate. Through the meshing relationship between the surface of the driving gear 504 and the inner side of the linkage tooth plate 505, the teeth on the surface of the driving gear 504 can drive the inner teeth of the two linkage tooth plates 505 when the driving gear 504 rotates, thereby smoothly driving the two driving gears 504, the connecting movable frame 502 and the limit clamping plate 501 to move toward each other. At this time, the distance of the clamping towards each other can be adjusted according to the size of different screws, and finally the corresponding screws can be limited and slidably conveyed.

[0058] The connecting movable frame 502 will drive the first pneumatic cylinder 701 to move toward each other synchronously, so that the gas in the inner cavity of the first pneumatic cylinder 701 is pushed from the ventilation pipe 705 into the inner cavity of the second pneumatic cylinder 703, so that the inner cavity gap at the top of the second pneumatic cylinder 703 becomes larger, so as to push the second pneumatic piston rod 704, the supporting telescopic column 602, the limiting pressing wheel 603 and the connecting spring 604 to move downward as a whole. Due to the retractable design of the supporting telescopic column 602 and the connecting spring 604, different gases can enter the second pneumatic cylinder 703, pushing the second pneumatic piston rod 704, the supporting telescopic column 602, the limiting pressing wheel 603 and the connecting spring 604 as a whole downward a fixed distance, so that the limiting pressing wheel 603 can smoothly press the top of the screw to enhance the effect of limiting sliding.

[0059] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0060] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An automatic conveying device for screw production, comprising a conveying device support platform (1), characterized in that: Also includes: A conveying vibration plate mechanism (3), wherein the conveying vibration plate mechanism (3) is arranged in the middle of the top end of the conveying device support platform (1); A conveying track support frame (4), wherein the conveying track support frame (4) is arranged on the top of one side of the conveying vibration plate mechanism (3); A position limiting clamping mechanism (5), wherein the position limiting clamping mechanism (5) is arranged inside and at the bottom of the conveying track support frame (4); The position-limiting clamping mechanism (5) comprises a position-limiting clamping plate (501) movably mounted on the inner side of the conveying track support frame (4); a connecting movable frame (502) is movably mounted on the middle part of the outer side of the conveying track support frame (4); the inner side of the top of the connecting movable frame (502) is fixedly connected to the middle part of the outer side of the position-limiting clamping plate (501); a driving motor group (503) is fixedly mounted on the middle part of the bottom end of the conveying track support frame (4); a driving gear (504) is fixedly sleeved on the bottom of the output end of the driving motor group (503); and a linkage gear plate (505) is fixedly mounted on the inner side of the bottom end of the connecting movable frame (502).

2. The automatic conveying device for screw production according to claim 1, characterized in that: The surface of the driving gear (504) is meshed with the inner side of the linkage gear plate (505).

3. The automatic conveying device for screw production according to claim 1, characterized in that: There are two position-limiting clamping plates (501), and the two position-limiting clamping plates (501) are in an eight-shaped shape.

4. The automatic conveying device for screw production according to claim 1, characterized in that: A control system body (2) is provided on the inner side of the conveying device support platform (1).

5. The automatic conveying device for screw production according to claim 1, characterized in that: A limit pressing assembly (6) is provided on the top of the inner side of the conveying track support frame (4), and the limit pressing assembly (6) includes a sliding support plate (601), a supporting telescopic column (602), a limit pressing wheel (603) and a connecting spring (604); The sliding support plate (601) is movably mounted on the top inner side of the conveying track support frame (4), the supporting telescopic column (602) is arranged on the outer side of the bottom of the sliding support plate (601), the limiting pressing wheel (603) is arranged on the bottom of the supporting telescopic column (602), and the connecting spring (604) is arranged on the bottom of the sliding support plate (601); The sliding support plate (601) includes a first side sliding support plate (6011), a second side sliding support plate (6012), an upper sliding support plate (6013) and a lower sliding support plate (6014), wherein the first side sliding support plate (6011) and the second side sliding support plate (6012) are close to 2 / 3 of the length of the lower sliding support plate (6014), and the spacing L1 with the reference surface of the support frame (4) is a fixed value; the spacing L2 with the reference surface of the support frame (4) is larger than the spacing L1, and the closer to the upper sliding support plate (6013), the larger the spacing; the maximum spacing L2 is 2 mm larger than the spacing L1.

6. The automatic conveying device for screw production according to claim 5, characterized in that: The bottom of the connecting spring (604) is fixedly connected to the top surface of the bottom end of the supporting telescopic column (602).

7. The automatic conveying device for screw production according to claim 5, characterized in that: The inner wall of the connecting spring (604) is slidably connected to the top surface of the supporting telescopic column (602); The length of the connecting spring (604) of the first side sliding support plate (6011) and the second side sliding support plate (6012) close to 1 / 3 of the length of the upper sliding support plate (6013) is greater than the length of the other connecting springs (604), but the elastic coefficient of the connecting spring is smaller; The length of its supporting telescopic column (602) is greater than that of the other supporting telescopic columns (602).

8. The automatic conveying device for screw production according to claim 1, characterized in that: Pneumatic components (7) are provided on both sides of the outer top of the connecting movable frame (502) and the top of the conveying track support frame (4), and the pneumatic components (7) include a first pneumatic cylinder (701), a first pneumatic piston rod (702), a second pneumatic cylinder (703), a second pneumatic piston rod (704) and a ventilation pipe (705); The first pneumatic cylinder (701) is fixedly mounted on the outer side of the top of the connecting movable frame (502), the first pneumatic piston rod (702) is movably mounted inside the first pneumatic cylinder (701), the inner end of the first pneumatic piston rod (702) is fixedly connected to both sides of the conveying track support frame (4), the second pneumatic cylinder (703) is fixedly mounted on both sides of the top of the conveying track support frame (4), the second pneumatic piston rod (704) is movably mounted inside the second pneumatic cylinder (703), the bottom of the second pneumatic piston rod (704) is fixedly connected to the top of the sliding support plate (601), and the first pneumatic cylinder (701) is connected to the second pneumatic cylinder (703) through a ventilation pipe (705).

9. The automatic conveying device for screw production according to claim 8, characterized in that: The first pneumatic cylinder (701) and the second pneumatic cylinder (703) have the same size.

10. The automatic conveying device for screw production according to claim 8, characterized in that: The ventilation pipe (705) is made of stainless steel.

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