Rolling test machine for small-sized air cushion bed

Abstract

The utility model relates to the technical field of air cushion bed test equipment, and discloses a small-sized air cushion bed rolling test machine which comprises a rack, an adjustable roller is arranged above the rack, the adjustable roller comprises a mandrel and a plurality of rolling pieces axially and sequentially sleeved on the mandrel, the rolling pieces sequentially and axially abut against each other and are detachably connected with the mandrel, and the adjustable roller is arranged on the rack. The mandrel is connected with a rolling test driving mechanism, the rolling piece synchronously moves along with the mandrel, an air cushion bed supporting plate is arranged below the adjustable roller, a material pushing plate is arranged on one side of the air cushion bed supporting plate, and the material pushing plate is connected with a horizontal driving mechanism below the rack. According to the utility model, the number of the rolling pieces in the adjustable roller can be increased or decreased according to the width of the air cushion bed to be tested, so that the rolling width of the adjustable roller can be matched with the widths of the air cushion beds to be tested with different sizes, thereby realizing the rolling test operation of the air cushion beds with different sizes, and greatly improving the universality of the equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of air cushion bed testing equipment, in particular to a small air cushion bed rolling testing machine. Background Art

[0002] Inflatable mattress is a widely used comfortable bedding. Its performance and quality have an important impact on the user's sleep quality and comfort. Rolling test is a common method to evaluate the durability and quality of inflatable mattress. In this test, the mattress is exposed to continuous rolling pressure, and its performance is evaluated by measuring its degree of deformation and recovery ability. This test method applies pressure to the entire area of ​​the mattress surface, and records and analyzes the deformation, rebound and other reactions of the mattress to evaluate key indicators such as comfort, support and durability. This test method can help manufacturers improve product design and ensure that the quality of the mattress meets the expected standards. The location of the test area should be based on the design and usage habits of the mattress to ensure the accuracy and reliability of the test results. During the test, it is also necessary to monitor and record the time and pressure level of applied pressure so that the test data can be analyzed and compared.

[0003] The utility model patent with the authorization announcement number CN 206362570U discloses a mattress testing machine, which uses a roller rotating at a fixed position and a mattress moving instead of the original roller rotating and moving on the mattress, so as to avoid malfunctions caused by pulling damage to the line, and has low maintenance costs. The roller can move up and down on the first guide column and the second guide column through the first sliding seat and the second sliding seat, and can automatically drop to a certain height according to the thickness of the mattress for rolling test. It is flexible to adjust and has strong versatility. However, the roller of the mattress testing machine is a fixed structure, and the length cannot be adjusted. It can only adapt to the rolling test of mattresses of a certain width. It is not very versatile and needs to be improved urgently. Utility Model Content

[0004] The purpose of the utility model is to provide a small air mattress rolling test machine, which can increase or decrease the number of rolling parts in the adjustable roller according to the width of the air mattress to be tested, so that the rolling width of the adjustable roller can match the width of air mattresses of different sizes to be tested, thereby realizing the rolling test operation of air mattresses of different sizes, greatly improving the versatility of the equipment.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A small air mattress rolling tester comprises a frame, an adjustable roller is arranged above the frame, the adjustable roller comprises a core shaft and a plurality of rolling parts axially sleeved on the core shaft in sequence, each rolling part is axially pressed against the core shaft in sequence and detachably connected to the core shaft, the core shaft is connected to a rolling test drive mechanism, the rolling parts move synchronously with the core shaft, an air mattress support plate is arranged below the adjustable roller, a push plate is arranged on one side of the air mattress support plate, and the push plate is connected to the horizontal drive mechanism below the frame.

[0007] By adopting the above technical solution, when the rolling test driving mechanism drives the core shaft to rotate, it drives each rolling part to rotate synchronously while pressing the air mattress supported on the air mattress support plate downward until the extrusion force matches the set rolling test parameters, and then drives the push plate to move horizontally through the horizontal driving mechanism. During the horizontal movement, the push plate pushes the air mattress to achieve horizontal feeding, so that the air mattress contacts the rolling parts in sequence along the feeding direction until the test surface of the air mattress has all undergone the rolling test. Among them, the adjustable roller includes a core shaft and a plurality of rolling parts axially sleeved on the core shaft in sequence, and each rolling part is axially pressed against the core shaft in sequence and detachably connected to the core shaft. Therefore, the number of rolling parts in the adjustable roller can be increased or decreased according to the width of the air mattress to be tested, so that the rolling width of the adjustable roller can match the width of the air mattress to be tested of different sizes, thereby realizing the rolling test operation of air mattresses of different sizes, which greatly improves the versatility of the equipment.

[0008] The utility model is further configured as follows: the rolling part is an annular structure composed of two semi-annular structures, one end of the two semi-annular structures on the same side are hinged to each other, the other ends of the two semi-annular structures on the same side are connected by countersunk bolts, and the inner wall of the annular structure composed of the two semi-annular structures cooperates with the outer wall of the core shaft.

[0009] By adopting the above technical solution, one end of the two semi-annular structures on the same side are hinged to each other, and the other end is connected by a countersunk bolt to form a structure similar to a clamp, which can easily achieve a detachable connection with the core shaft. It is not only simple in structure but also easy to operate.

[0010] The utility model is further configured as follows: a slide groove parallel to the axial direction of the core shaft is provided on the outer wall thereof, and a protrusion axially slidingly matched with the slide groove on the outer wall of the core shaft is provided on the inner wall of the rolling part.

[0011] By adopting the above technical solution, after the protrusion on the inner wall of the rolling part and the protrusion on the outer wall of the core shaft axially slide together, the rolling part will slide axially along the core shaft and rotate synchronously with the core shaft, so that when the rolling part and the core shaft are assembled, the position of the rolling part on the core shaft can be adjusted to ensure that each rolling part is axially pressed tightly in sequence. When a rolling test is required after the assembly is completed, the core shaft will drive each rolling part to rotate synchronously when the rolling test drive mechanism drives the core shaft to rotate, thereby ensuring the smooth progress of the rolling test.

[0012] The utility model is further configured as follows: both ends of the core shaft are respectively provided with limit plates for limiting the rolling parts located at the two ends of the core shaft, the two limit plates are rotatably connected to the core shaft, and the sides of the two limit plates away from each other are respectively provided with a clamping spring, one end of the clamping spring is fixedly connected to the end of the core shaft, and the other end of the clamping spring is fixedly connected to the limit plate.

[0013] By adopting the above technical scheme, the limit plate applies axial force to the rolling parts at both ends of the core shaft under the action of the elastic force of the clamping spring, so that the rolling parts on the core shaft all move axially toward the center of the core shaft, thereby achieving the effect of axial clamping of each rolling part in turn, ensuring that when the number of rolling parts increases or decreases, each rolling part can always be located at the center of the core shaft in a state of being clamped against each other, and during the rolling test, each rolling part will not move axially at will, effectively improving the reliability of the device.

[0014] The utility model is further configured as follows: the bottom of the two limit plates are respectively provided with longitudinal slides that are longitudinally slidably matched with the two side plates of the frame; the two limit plates are slidably matched with the longitudinal slides through horizontal guide rods; the rolling test drive mechanism includes longitudinal drive cylinders respectively connected to the two longitudinal slides; the two longitudinal drive cylinders are fixed on the top of the frame; and the telescopic shafts of the two longitudinal drive cylinders are respectively fixedly connected to the two longitudinal slides.

[0015] By adopting the above technical scheme, the longitudinal slides at the bottom of the two limit plates are longitudinally slidably matched with the two side plates of the frame, so that when the longitudinal driving cylinder drives the two longitudinal slides to move downward, the two limit plates will move downward synchronously, so that the core shaft rotatably connected to the two limit plates and the rolling parts arranged on the core shaft move downward synchronously with the limit plates, thereby driving each rolling part to squeeze the air mattress carried on the air mattress support plate downward until the rolling test operation is completed.

[0016] The utility model is further configured as follows: the distance between the lower end of the limit plate and the lowest point of the rolling part is not less than the thickness of the air mattress during the rolling test.

[0017] By adopting the above technical scheme, the longitudinal sliding plates at the bottom of the two limit plates are longitudinally slidably matched with the two side plates of the frame, so that the two limit plates will not rotate synchronously with the core shaft, and because the distance between the lower end of the limit plate and the lowest point of the rolling part is not less than the thickness of the air mattress during the rolling test, the lower end of the limit plate will be against the two side surfaces of the air mattress during the rolling test, thereby achieving the limitation of the air mattress. On the one hand, it can ensure that the air mattress will not move at will during the rolling test, and on the other hand, it can also prevent the side walls of the air mattress from deforming and bulging after the air mattress is longitudinally compressed, thereby pulling the joints between the side walls and the top and bottom surfaces, causing the joints to loosen or crack, etc., greatly reducing the damage to the air mattress caused by the rolling test.

[0018] The utility model is further configured as follows: the rolling test drive mechanism also includes a drive motor for driving the core shaft to rotate, the output shaft of the drive motor is fixedly connected to one end of the core shaft, and the drive motor is fixed on the limit plate.

[0019] By adopting the above technical solution, the driving motor is used to drive the core shaft to drive the rolling part to rotate to achieve the purpose of the rolling operation, that is: when the driving motor is started, it will drive the core shaft to rotate synchronously, and when the core shaft rotates, it can drive the rolling part to rotate synchronously to ensure the normal progress of the rolling test.

[0020] The utility model is further configured as follows: the horizontal driving mechanism comprises a horizontal driving cylinder, the horizontal driving cylinder is fixed at one end of the frame, and the telescopic shaft of the horizontal driving cylinder is fixedly connected to the push plate.

[0021] By adopting the above technical scheme, when the horizontal driving mechanism is working, the horizontal driving cylinder is started to extend the telescopic shaft of the horizontal driving cylinder. When the telescopic shaft of the horizontal driving cylinder is extended, it pushes the push plate to move horizontally along the horizontal feed direction of the rolling test. When the push plate moves horizontally along the horizontal feed direction of the rolling test, it pushes the air mattress to be tested to achieve horizontal feeding, so that the air mattress contacts the rolling part in sequence along the feed direction until the test surface of the air mattress has all undergone the rolling test.

[0022] The utility model is further configured as follows: a plurality of rolling bodies are evenly embedded on the upper surface of the air mattress support plate, and the rolling direction of the rolling bodies matches the telescopic direction of the horizontal driving cylinder.

[0023] By adopting the above technical scheme, the setting of the rolling body greatly reduces the friction between the air mattress and the air mattress support plate when the air mattress moves relative to the air mattress support plate in the feeding direction. On the one hand, it reduces the power cost of the horizontal drive mechanism, and on the other hand, it also reduces the friction between the air mattress and the air mattress support plate, making the air mattress less likely to be worn during the test, effectively ensuring the appearance quality of the air mattress.

[0024] The utility model is further configured as follows: the rolling body can be cylindrical or spherical, the contact points of each rolling body with the air mattress support plate are all located on the same plane, and the plane where the contact points of each rolling body with the air mattress are located is parallel to the supporting surface of the air mattress support plate.

[0025] By adopting the above technical scheme, cylindrical or spherical rolling bodies can achieve good support for the air mattress, and have a simple structure, easy installation, and low cost. The plane where each rolling body contacts the air mattress is parallel to the supporting surface of the air mattress support plate, ensuring that each part of the air mattress is evenly stressed during the rolling test, thereby effectively improving the effect of the rolling test.

[0026] The beneficial effects of the utility model are:

[0027] 1. The utility model drives the core shaft to rotate through the rolling test drive mechanism, which drives each rolling part to rotate synchronously and squeezes the air mattress supported on the air mattress support plate downward until the extrusion force matches the set rolling test parameters, and then drives the push plate to move horizontally through the horizontal drive mechanism. During the horizontal movement, the push plate pushes the air mattress to achieve horizontal feeding, so that the air mattress contacts the rolling parts in turn along the feeding direction until the test surface of the air mattress is completely subjected to the rolling test. Among them, the adjustable roller includes a core shaft and a plurality of rolling parts axially sleeved on the core shaft in turn, and each rolling part is axially pressed against the core shaft in turn and detachably connected to the core shaft. Therefore, the number of rolling parts in the adjustable roller can be increased or decreased according to the width of the air mattress to be tested, so that the rolling width of the adjustable roller can match the width of the air mattress to be tested of different sizes, thereby realizing the rolling test operation of air mattresses of different sizes, which greatly improves the versatility of the equipment.

[0028] 2. The rolling part in the utility model is composed of two semi-annular structures, one end of which is hinged to each other on the same side, and the other end is connected by countersunk bolts to form a structure similar to a clamp, which can easily achieve a detachable connection with the core shaft. It is not only simple in structure but also easy to operate.

[0029] 3. In the utility model, the limit plate applies axial force to the rolling parts at both ends of the core shaft under the action of the elastic force of the clamping spring, so that the rolling parts on the core shaft all move axially toward the center of the core shaft, thereby achieving the effect of axial clamping of each rolling part in turn, ensuring that when the number of rolling parts increases or decreases, each rolling part can always be located at the center of the core shaft in a state of mutual clamping, and during the rolling test, each rolling part will not move axially at will, effectively improving the reliability of the device.

[0030] 4. In the utility model, the longitudinal sliding plates at the bottom of the two limit plates are longitudinally slidably matched with the two side plates of the frame, so that the two limit plates will not rotate synchronously with the core shaft, and because the distance between the lower end of the limit plate and the lowest point of the rolling part is not less than the thickness of the air mattress during the rolling test, the lower end of the limit plate will be against the two side surfaces of the air mattress during the rolling test, thereby achieving the limitation of the air mattress. On the one hand, it can ensure that the air mattress will not move at will during the rolling test, and on the other hand, it can also prevent the side walls of the air mattress from deforming and bulging after the air mattress is longitudinally compressed, thereby pulling the joints between the side walls and the top and bottom surfaces, causing the joints to loosen or crack, etc., which greatly reduces the damage to the air mattress caused by the rolling test.

[0031] 5. The provision of the rolling body in the utility model greatly reduces the friction between the air mattress and the air mattress support plate when the air mattress moves relative to the air mattress support plate in the feeding direction. On the one hand, it reduces the power cost of the horizontal drive mechanism, and on the other hand, it also reduces the friction between the air mattress and the air mattress support plate, making the air mattress less likely to be worn during the test, effectively ensuring the appearance quality of the air mattress. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0033] Figure 1 The utility model is a schematic diagram of the overall structure of a small air mattress rolling test machine.

[0034] Figure 2 yes Figure 1 A is a partial enlarged schematic diagram of the middle part.

[0035] Figure 3 The utility model is a schematic cross-sectional structure diagram of the installation of an adjustable roller center core shaft and a rolling part in a small air mattress rolling test machine.

[0036] In the figure, 1. frame; 11. side plate; 2. adjustable roller; 21. core shaft; 22. rolling part; 23. slide groove; 24. protrusion; 25. limit plate; 26. clamping spring; 27. longitudinal slide plate; 28. horizontal guide rod; 3. rolling test drive mechanism; 31. longitudinal drive cylinder; 32. drive motor; 4. air mattress support plate; 5. push plate; 6. horizontal drive mechanism. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. 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.

[0038] like Figures 1 to 3 As shown, a small air mattress rolling tester comprises a frame 1, an adjustable roller 2 is provided above the frame 1, the adjustable roller 2 comprises a core shaft 21 and a plurality of rolling members 22 axially sleeved on the core shaft 21 in sequence, each rolling member 22 is axially pressed against the core shaft 21 in sequence and detachably connected, the core shaft 21 is connected to a rolling test driving mechanism 3, the rolling members 22 move synchronously with the core shaft 21, an air mattress support plate 4 is provided below the adjustable roller 2, a push plate 5 is provided on one side of the air mattress support plate 4, and the push plate 5 is connected to a horizontal driving mechanism 6 below the frame 1.

[0039] Furthermore, the rolling part 22 is an annular structure composed of two semi-annular structures, one end of the same side of the two semi-annular structures is hinged to each other, and the other end of the same side of the two semi-annular structures is connected by a countersunk bolt, and the inner wall of the annular structure composed of the two semi-annular structures cooperates with the outer wall of the core shaft 21.

[0040] Furthermore, a slide groove 23 parallel to the axial direction of the core shaft 21 is provided on the outer wall thereof, and a protrusion 24 axially slidingly matched with the slide groove 23 on the outer wall of the core shaft 21 is provided on the inner wall of the rolling member 22 .

[0041] Furthermore, both ends of the core shaft 21 are respectively provided with limit plates 25 for limiting the rolling parts 22 located at the two ends of the core shaft 21. The two limit plates 25 are rotatably connected to the core shaft 21, and the sides of the two limit plates 25 that are away from each other are respectively provided with a clamping spring 26, one end of the clamping spring 26 is fixedly connected to the end of the core shaft 21, and the other end of the clamping spring 26 is fixedly connected to the limit plate 25.

[0042] Furthermore, the bottom of the two limit plates 25 is also respectively provided with a longitudinal slide 27 that longitudinally slides with the two side plates 11 of the frame 1. The two limit plates 25 slide with the longitudinal slide 27 through a horizontal guide rod 28. The rolling test drive mechanism 3 includes a longitudinal drive cylinder 31 respectively connected to the two longitudinal slides 27. The two longitudinal drive cylinders 31 are fixed on the top of the frame 1, and the telescopic axes of the two longitudinal drive cylinders 31 are respectively fixedly connected to the two longitudinal slides 27.

[0043] Furthermore, the distance between the lower end of the limiting plate 25 and the lowest point of the rolling member 22 is not less than the thickness of the air mattress during the rolling test.

[0044] Furthermore, the rolling test driving mechanism 3 also includes a driving motor 32 for driving the core shaft 21 to rotate, the output shaft of the driving motor 32 is fixedly connected to one end of the core shaft 21 , and the driving motor 32 is fixed on the limiting plate 25 .

[0045] Furthermore, the horizontal driving mechanism 6 includes a horizontal driving cylinder, which is fixed to one end of the frame 1 , and a telescopic shaft of the horizontal driving cylinder is fixedly connected to the push plate 5 .

[0046] Furthermore, a plurality of rolling bodies are evenly embedded on the upper surface of the air mattress support plate 4, and the rolling direction of the rolling bodies matches the extension and retraction direction of the horizontal driving cylinder.

[0047] Furthermore, the rolling body may be cylindrical or spherical, and the points where each rolling body contacts the air mattress support plate 4 are all located on the same plane, and the plane where the points where each rolling body contacts the air mattress is parallel to the support surface of the air mattress support plate 4.

[0048] The working principle of the utility model is as follows: when it is necessary to perform a rolling test on the air mattress, the air mattress to be tested is placed on the air mattress support plate 4, and then the rolling test drive mechanism 3 is started, so that the driving motor 32 in the rolling test drive mechanism 3 drives the core shaft 21 to rotate, thereby driving each rolling member 22 to rotate synchronously, and at the same time, the longitudinal driving cylinder in the rolling test drive mechanism 3 drives the two longitudinal slides to move downward, driving the two limit plates 25 to move downward synchronously, so that the core shaft 21 rotatably connected to the two limit plates 25 and the rolling member 22 arranged on the core shaft 21 move downward synchronously with the limit plates 25, so as to drive each rolling member 22 to squeeze the air mattress carried on the air mattress support plate 4 downward until the squeezing force matches the set rolling test parameters, and then the horizontal driving cylinder in the horizontal driving mechanism 6 drives the push plate 5 to move horizontally, and the push plate 5 pushes the air mattress to achieve horizontal feeding during the horizontal movement, so that the air mattress contacts the rolling member 22 in sequence along the feeding direction until the test surface of the air mattress is completely subjected to the rolling test. Among them, the adjustable roller 2 includes a core shaft 21 and a plurality of rolling members 22 axially sleeved on the core shaft 21 in sequence. Each rolling member 22 is axially pressed against the core shaft 21 in sequence and is detachably connected to the core shaft 21. Therefore, the number of rolling members 22 in the adjustable roller 2 can be increased or decreased according to the width of the air mattress to be tested, so that the rolling width of the adjustable roller 2 can match the width of the air mattresses to be tested of different sizes, thereby realizing the rolling test operation of air mattresses of different sizes, which greatly improves the versatility of the equipment.

Claims

1. A small air mattress rolling tester, characterized in that: The invention comprises a frame (1), an adjustable roller (2) is arranged above the frame (1), the adjustable roller (2) comprises a core shaft (21) and a plurality of rolling parts (22) axially sleeved on the core shaft (21) in sequence, each rolling part (22) is axially pressed against the core shaft (21) in sequence and is detachably connected to the core shaft (21), the core shaft (21) is connected to a rolling test drive mechanism (3), the rolling parts (22) move synchronously with the core shaft (21), an air mattress support plate (4) is arranged below the adjustable roller (2), a push plate (5) is arranged on one side of the air mattress support plate (4), and the push plate (5) is connected to a horizontal drive mechanism (6) below the frame (1).

2. The small air mattress rolling tester according to claim 1, characterized in that: The rolling part (22) is an annular structure composed of two semi-annular structures, one end of the two semi-annular structures on the same side are hinged to each other, the other ends of the two semi-annular structures on the same side are connected by countersunk bolts, and the inner wall of the annular structure composed of the two semi-annular structures cooperates with the outer wall of the core shaft (21).

3. The small air mattress rolling tester according to claim 2, characterized in that: The outer wall of the core shaft (21) is provided with a sliding groove (23) parallel to the axial direction thereof, and the inner wall of the rolling element (22) is provided with a protrusion (24) axially slidingly matched with the sliding groove (23) on the outer wall of the core shaft (21).

4. The small air mattress rolling tester according to claim 3, characterized in that: The two ends of the core shaft (21) are respectively provided with limit plates (25) for limiting the rolling parts (22) located at the two ends of the core shaft (21); the two limit plates (25) are rotatably connected to the core shaft (21); the two limit plates (25) are respectively provided with a clamping spring (26) on the side away from each other; one end of the clamping spring (26) is fixedly connected to the end of the core shaft (21), and the other end of the clamping spring (26) is fixedly connected to the limit plate (25).

5. The small air mattress rolling tester according to claim 4, characterized in that: The bottoms of the two limit plates (25) are respectively provided with longitudinal slide plates (27) that are longitudinally slidably matched with the two side plates (11) of the frame (1). The two limit plates (25) are slidably matched with the longitudinal slide plates (27) through horizontal guide rods (28). The rolling test drive mechanism (3) comprises longitudinal drive cylinders (31) respectively connected to the two longitudinal slide plates (27). The two longitudinal drive cylinders (31) are fixed on the top of the frame (1), and the telescopic shafts of the two longitudinal drive cylinders (31) are respectively fixedly connected to the two longitudinal slide plates (27).

6. The small air mattress rolling tester according to claim 5, characterized in that: The distance between the lower end of the limiting plate (25) and the lowest point of the rolling member (22) is not less than the thickness of the air mattress during the rolling test.

7. The small air mattress rolling tester according to claim 6, characterized in that: The rolling test drive mechanism (3) further comprises a drive motor (32) for driving the core shaft (21) to rotate, wherein an output shaft of the drive motor (32) is fixedly connected to one end of the core shaft (21), and the drive motor (32) is fixed on the limit plate (25).

8. The small air mattress rolling tester according to claim 7, characterized in that: The horizontal driving mechanism (6) comprises a horizontal driving cylinder, which is fixed to one end of the frame (1), and the telescopic shaft of the horizontal driving cylinder is fixedly connected to the push plate (5).

9. The small air mattress rolling tester according to claim 8, characterized in that: A plurality of rolling bodies are evenly embedded on the upper surface of the air mattress support plate (4), and the rolling direction of the rolling bodies matches the telescopic direction of the horizontal driving cylinder.

10. The small air mattress rolling tester according to claim 9, characterized in that: The rolling bodies may be cylindrical or spherical, and the points at which the rolling bodies contact the air mattress are located on the same plane. The plane at which the points at which the rolling bodies contact the air mattress support plate (4) is located is parallel to the support surface of the air mattress support plate (4).

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