Shock-reducing rubber leather bag base press-fitting equipment and method thereof
By designing an automated rubber bladder base pressing device, which utilizes components such as columns, electric cylinders, upper positioning plates, and tightening guns to achieve automated inflation and locking of the rubber bladder and base, the problems of low efficiency and low yield rate in existing technologies are solved, thereby improving production efficiency and product quality.
Patent Information
- Application Number
- CN202511327135.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2025-11-18
AI Technical Summary
The current assembly process of shock absorber rubber bladder bases for commercial vehicles relies on manual operation, resulting in low efficiency, low yield, and high cost, and making it impossible to achieve automation and standardization.
A device comprising a column, an electric cylinder, an upper positioning plate, an inflation/deflation valve, and a tightening gun was designed to achieve automatic inflation and locking of the rubber bladder to the base, and to automate the semi-roll assembly operation through the electric cylinder and lead screw structure.
This improved the efficiency of assembling the rubber bladder and the base half-roll, reduced reliance on manual experience, ensured product quality and production efficiency, and lowered labor costs.
Smart Images

Figure CN120962327A_ABST
Abstract
Description
Technical Field
[0001] This invention specifically relates to a shock-absorbing rubber bladder base press-fitting device and method. Background Technology
[0002] Before shipping, the shock-absorbing rubber airbags for commercial vehicles need to be assembled with the base. The assembled airbag is quite tall, so to save packaging space, it is partially rolled up and pressed down. Currently, when assembling the base and partially rolled rubber airbag, the end of the rubber airbag with the top cover plate facing down is placed, and the inflation screw of the top cover plate is inserted into the positioning hole of the lower tooling plate. An air hose is manually inserted into the inflation screw, and inflation is waited for. Then, the base is placed on the airbag to mate with the screw on the airbag. Flat washers, spring washers, and nuts are then installed on the screw in sequence and pre-tightened manually. The upper tooling plate is then pressed down on the base, and the air valve is opened simultaneously, allowing air to be injected into the airbag through the air hose. During the pressing down of the upper tooling plate, the operator needs to rotate the base to facilitate the smooth entry of the base positioning fixture into the positioning hole of the upper tooling plate. After partially rolling, a pneumatic locking gun is used to tighten the nut and screw.
[0003] In existing methods, when assembling the base and rubber bladder in a semi-rolled manner, the amount of air in the tooling and the torque value for tightening all rely on manual operation experience. Furthermore, the inflation and tightening require manual operation, which is laborious, time-consuming, and inefficient. The low product yield caused by human factors greatly affects the production and processing efficiency. To address this, we propose a shock-absorbing rubber bladder base press-fitting equipment and method. Summary of the Invention
[0004] The purpose of this invention is to provide a shock-absorbing rubber bladder base pressing device and method to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a shock-absorbing rubber bladder base pressing device, comprising:
[0006] The machine body has a column fixed inside it, and a fixing plate is detachably connected to the top of the column;
[0007] An electric cylinder is mounted on the fixed plate, and a movable plate that slides with the column is provided at the lower end of the electric cylinder.
[0008] An upper positioning plate is disposed below the movable plate;
[0009] An air filling and venting valve is installed on the upper positioning plate, and the inlet on the lower surface of the air filling and venting valve penetrates through the upper positioning plate;
[0010] The lower positioning plate is fixed to the middle of the column, and the lower positioning plate is provided with a pin for positioning the bladder base;
[0011] A tightening gun is located below the lower positioning plate, and the lower end of the tightening gun is provided with a lead screw structure that drives it to move up and down.
[0012] Preferably, the lower positioning plate is annular, and the lower surface of the lower positioning plate is provided with a support plate that cooperates with the column.
[0013] Preferably, the lead screw structure includes a motor, a sliding plate, and a lead screw. The motor is located at the bottom of the inner side of the machine body, and one end of the motor is connected to the lead screw through a reduction gearbox. The lead screw is provided in two places, and a sliding plate is provided between the two lead screws. The inner side of the sliding plate has an internal thread that mates with the lead screw.
[0014] Preferably, a guide post is provided on the inner side of the skateboard, and the guide post is fixed to the bottom of the machine body by a bracket.
[0015] Preferably, four columns are provided, and the four columns are located at the four corners of the fixing plate.
[0016] Preferably, the four corners of the inner side of the movable plate are provided with sliding sleeves, which are slidably engaged with the column.
[0017] Preferably, the body has a touch screen on one side.
[0018] A pressing method for a shock-absorbing rubber bladder base pressing device includes the following steps:
[0019] Step A: Place the hexagonal nut, spring washer, and flat washer into the locking sleeve at the top of the tightening gun in sequence. Place the base to be assembled into the positioning pin on the lower positioning plate through the positioning hole on the lower surface of the base. Place the rubber bladder with the upper cover plate on the base and align the screw at the bottom of the rubber bladder with the locking sleeve.
[0020] Step B: Start the electric cylinder to move the upper positioning plate at the lower end of the electric cylinder down until the inflation screw on the rubber bladder engages with the inlet of the inflation / deflation valve, and then inflate the rubber bladder to the preset value through the inflation / deflation valve.
[0021] Step C: At this point, the screw mechanism drives the tightening gun to rise until the locking sleeve engages with the screw at the bottom of the bladder. Then, by rotating the tightening gun, the hexagonal nut, spring washer, and flat washer can be installed onto the screw to achieve the preset torque value through rotational tightening.
[0022] Step D: Continue to move the upper positioning plate down using the electric cylinder to press the rubber bladder, causing the bladder to wrap around the base. The gas inside the bladder can be discharged through the inflation and deflation valve.
[0023] Step E: After venting, maintain pressure for a period of time to prevent the bladder from rebounding. Then tighten the gun and drive it down to the original position via the screw mechanism. The upper positioning plate rises to the original position, and the installed rubber bladder can be removed from the machine body.
[0024] Compared with the prior art, the beneficial effects of the present invention are:
[0025] This invention, by incorporating a column, lower positioning plate, electric cylinder, fixing plate, upper positioning plate, inflation / deflation valve, and tightening gun, facilitates automatic inflation and locking to a preset torque value during the semi-rolling operation of connecting the rubber bladder to the base. This avoids the traditional operations that rely on manual experience, are labor-intensive, and inefficient. This device can greatly improve the operational efficiency of assembling the rubber bladder and base in a semi-rolling manner, reduce reliance on manual experience, save labor costs, and ensure product quality. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of the present invention;
[0027] Figure 2 This is a schematic diagram of the upper positioning plate structure of the present invention;
[0028] Figure 3 This is a schematic diagram of the sliding fit structure between the movable plate and the column of the present invention;
[0029] Figure 4 This is a schematic diagram of the lead screw structure of the present invention;
[0030] Figure 5 This is a schematic diagram showing the connection between the rubber bladder and the base of the present invention.
[0031] In the diagram: 1. Machine body; 2. Column; 3. Lower positioning plate; 4. Touch screen; 5. Moving plate; 6. Electric cylinder; 7. Fixed plate; 8. Upper positioning plate; 9. Inflation and exhaust valve; 10. Sliding sleeve; 11. Motor; 12. Slide plate; 13. Tightening gun; 14. Lead screw. Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0033] Please see Figures 1-5 This invention provides a technical solution: a shock-absorbing rubber bladder base pressing device, comprising:
[0034] The machine body 1 has a column 2 fixed inside it, and a fixing plate 7 is detachably connected to the top of the column 2.
[0035] Electric cylinder 6 is mounted on fixed plate 7, and a movable plate 5 that slides with column 2 is provided at the lower end of electric cylinder 6.
[0036] The extension and retraction of the electric cylinder 6 allows the upper positioning plate 8 to be raised or lowered via the moving plate 5, thereby pressing the rubber bladder to move when the rubber bladder is half-rolled up and installed on the base.
[0037] The upper positioning plate 8 is located below the movable plate 5;
[0038] The upper positioning plate 8 is used to cooperate and position with the cover plate on the rubber bladder, so as to better press the rubber bladder downward to roll it up and connect it with the base.
[0039] The inflation / deflation valve 9 is installed on the upper positioning plate 8, and the inlet on the lower surface of the inflation / deflation valve 9 passes through the upper positioning plate 8;
[0040] It facilitates control of the air pressure inside the rubber bladder, ensuring that the bladder does not collapse when it is rolled up, and contains a small amount of air to support it during the rolling process;
[0041] The lower positioning plate 3 is fixed to the middle of the column 2, and the lower positioning plate 3 is provided with a pin for positioning the bladder base;
[0042] This facilitates the positioning of the base to be assembled below the rubber bladder;
[0043] Tightening gun 13 is located below the lower positioning plate 3, and the lower end of tightening gun 13 is provided with a screw structure that drives it to move up and down.
[0044] like Figure 5 As shown, by raising and lowering the tightening gun 13, the upper sleeve of the tightening gun 13 is made to engage with the screw at the lower end of the rubber bladder, and the hexagonal nut, spring washer and flat washer inside the sleeve are turned to tighten with the screw, thereby locking and fixing the base and the rubber bladder.
[0045] In this embodiment, preferably, the lower positioning plate 3 is annular, and the lower surface of the lower positioning plate 3 is provided with a support plate that cooperates with the column 2, so as to facilitate the installation of the lower positioning plate 3 onto the column 2.
[0046] In this embodiment, preferably, the lead screw structure includes a motor 11, a slide plate 12 and a lead screw 14. The motor 11 is located at the bottom of the inner side of the machine body 1, and one end of the motor 11 is connected to the lead screw 14 through a reduction gearbox. The lead screw 14 is provided in two places, and there is a slide plate 12 between the two lead screws 14. The inner side of the slide plate 12 has an internal thread that cooperates with the lead screw 14.
[0047] The motor 11 drives the lead screw 14 to rotate, thereby moving the slide plate 12 up and down. The height of the tightening gun 13 can be adjusted by the slide plate 12, making it easier to cooperate with the screws under the rubber bladders of different specifications.
[0048] In this embodiment, preferably, a guide post is provided on the inner side of the slide plate 12, and the guide post is fixed to the bottom of the body 1 by a bracket;
[0049] This allows the skateboard 12 to move vertically up and down more easily.
[0050] In this embodiment, preferably, four columns 2 are provided, and the four columns 2 are located at the four corners of the fixing plate 7 respectively.
[0051] This facilitates better support and fixation of the fixed plate 7, and also allows for vertical up-and-down movement of the movable plate 5.
[0052] In this embodiment, preferably, the four corners of the inner side of the movable plate 5 are provided with sliding sleeves 10. The sliding sleeves 10 are slidably engaged with the column 2, which facilitates the movable plate 5 to slide up and down along the column 2. The sliding sleeves 10 reduce the wear caused by the movable plate 5 directly contacting the column 2, and improve the convenience of later maintenance.
[0053] In this embodiment, preferably, the body 1 has a touch screen 4 on one side.
[0054] A pressing method for a shock-absorbing rubber bladder base pressing device includes the following steps:
[0055] Step A: Place the hexagonal nut, spring washer, and flat washer into the locking sleeve at the top of the tightening gun 13 in sequence. Place the base to be assembled into the positioning pin on the lower positioning plate 3 through the positioning hole on the lower surface of the base. Place the rubber bladder with the upper cover plate on the base and make the screw at the bottom of the rubber bladder correspond to the locking sleeve.
[0056] Step B: Start the electric cylinder 6 so that the upper positioning plate 8 at the lower end of the electric cylinder 6 moves down until the inflation screw on the rubber bladder engages with the inlet of the inflation / deflation valve 9, and then the inflation / deflation valve 9 inflates the rubber bladder to the preset value.
[0057] Step C: At this time, the screw structure drives the tightening gun 13 to rise until the locking sleeve engages with the screw at the bottom of the bladder. Then, by rotating the tightening gun 13, the hexagonal nut, spring washer and flat washer can be installed on the screw to achieve the preset torque value through rotational tightening.
[0058] Step D: The upper positioning plate 8 continues to move downward by the electric cylinder 6, pressing the rubber bladder so that the bladder wraps around the base. The gas inside the bladder can be discharged through the inflation and deflation valve 9.
[0059] Step E: After venting, maintain pressure for a period of time to prevent the bladder from rebounding. Then tighten the gun 13 and drive it to descend back to the original position via the screw structure. The upper positioning plate 8 rises to the original position, and the installed rubber bladder can be removed from the machine body 1.
[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A shock-absorbing rubber bladder base pressing device, characterized in that, include: The machine body (1) has a column (2) fixed inside it, and a fixing plate (7) is detachably connected to the top of the column (2). An electric cylinder (6) is mounted on the fixed plate (7), and a movable plate (5) that slides with the column (2) is provided at the lower end of the electric cylinder (6). The upper positioning plate (8) is located below the movable plate (5); The inflation / deflation valve (9) is installed on the upper positioning plate (8), and the inlet on the lower surface of the inflation / deflation valve (9) passes through the upper positioning plate (8). The lower positioning plate (3) is fixed to the middle of the column (2), and the lower positioning plate (3) is provided with a pin for positioning the bladder base; The tightening gun (13) is located below the lower positioning plate (3), and the lower end of the tightening gun (13) is provided with a screw structure that drives it to move up and down.
2. The shock-absorbing rubber bladder base pressing device according to claim 1, characterized in that: The lower positioning plate (3) is annular, and a support plate that cooperates with the column (2) is provided on the lower surface of the lower positioning plate (3).
3. The shock-absorbing rubber bladder base pressing device according to claim 1, characterized in that: The lead screw structure includes a motor (11), a slide plate (12) and a lead screw (14). The motor (11) is located at the bottom of the inner side of the machine body (1), and one end of the motor (11) is connected to the lead screw (14) through a gearbox. The lead screw (14) is provided in two places, and there is a slide plate (12) between the two lead screws (14). The inner side of the slide plate (12) has an internal thread that cooperates with the lead screw (14).
4. The shock-absorbing rubber bladder base pressing device according to claim 3, characterized in that: The inner side of the skateboard (12) is provided with a guide post, which is fixed to the bottom of the body (1) by a bracket.
5. The shock-absorbing rubber bladder base pressing device according to claim 1, characterized in that: There are four columns (2), and the four columns (2) are located at the four corners of the fixing plate (7).
6. The shock-absorbing rubber bladder base pressing device according to claim 1, characterized in that: The movable plate (5) is provided with sliding sleeves (10) at the four corners of its inner side, and the sliding sleeves (10) are in sliding cooperation with the column (2).
7. The shock-absorbing rubber bladder base pressing device according to claim 1, characterized in that: The body (1) has a touch screen (4) on one side.
8. A pressing method for a shock-absorbing rubber bladder base pressing device, characterized in that, Includes the following steps: Step A: Place the hexagonal nut, spring washer and flat washer into the locking sleeve at the top of the tightening gun (13) in sequence. Place the base to be assembled into the positioning pin on the lower positioning plate (3) through the positioning hole on the lower surface of the base. Place the rubber bladder with the upper cover plate on the base and make the screw at the bottom of the rubber bladder correspond to the locking sleeve. Step B: Start the electric cylinder (6) so that the upper positioning plate (8) at the lower end of the electric cylinder (6) moves down until the inflation screw on the rubber bladder engages with the inlet of the inflation / deflation valve (9), and then the inflation / deflation valve (9) inflates the rubber bladder to the preset value. Step C: At this time, the screw structure drives the tightening gun (13) to rise until the locking sleeve engages with the bottom screw of the bladder. Then, the hexagonal nut, spring washer and flat washer can be installed on the screw by rotating the tightening gun (13) to achieve the preset torque value. Step D: The upper positioning plate (8) is moved down by the electric cylinder (6) to press the rubber bladder so that the bladder wraps around the base. The gas inside the bladder can be discharged through the inflation and deflation valve (9). Step E: After venting, maintain pressure for a period of time to prevent the bladder from rebounding. Then tighten the gun (13) and drive it down to the origin through the screw structure. The upper positioning plate (8) rises to the origin, and the installed rubber bladder can be taken out from the machine body (1).