A disposable glove air tightness testing device

Abstract

The present invention relates to the field of glove performance testing equipment, and in particular to a disposable glove air tightness testing equipment, which includes a frame, a glove fixing mechanism, an air circuit system and a brush pressure wheel mechanism, wherein the glove fixing mechanism is arranged on the frame and rotates relative to the frame under the drive of a transmission device; the glove fixing mechanism includes a glove fixing structure and an auxiliary positioning structure driven by the air circuit system; the brush pressure wheel mechanism is connected to the frame and arranged at a corresponding position to the glove fixing mechanism. The present invention adopts automated air circuit detection to replace the water filling detection method, thereby improving detection efficiency, saving energy and protecting the environment, and performing subsequent processing without drying; adopting an automated detection method, after the operator puts the gloves on the equipment, the equipment automatically completes the inflation, inspection, detachment and sorting of good and bad products of the gloves, thereby reducing manual operation costs and improving operation efficiency and detection quality.

Description

Technical Field

[0001] The invention relates to the field of glove performance testing equipment, in particular to a disposable glove air tightness testing equipment. Background Art

[0002] The sealing test of disposable gloves used in the food, medical and other industries adopts the method of water filling, which is difficult to operate and takes a long time. At the same time, it is difficult to clean the test water in the gloves after the test is completed, which increases the difficulty of subsequent operations. Summary of the invention

[0003] The present invention aims to solve the above problems and provides a disposable glove air tightness detection device, the technical solution adopted by the present invention is as follows:

[0004] A disposable glove air tightness testing device comprises a frame, a glove fixing mechanism, an air circuit system and a brush pressure wheel mechanism, wherein the glove fixing mechanism is arranged on the frame and rotates relative to the frame under the drive of a transmission device; the glove fixing mechanism comprises a glove fixing structure and an auxiliary positioning structure driven by the air circuit system; the brush pressure wheel mechanism is connected to the frame and arranged at a position corresponding to the glove fixing mechanism.

[0005] On the basis of the above scheme, the glove fixing mechanism includes a driving mechanism, a push rod, an outer ring and a fixed block. The driving mechanism is fixedly connected to the push rod and drives the push rod to move back and forth along the axial direction of the fixed block. The outer ring is sleeved on the outside of the fixed block, and the push rod passes through the outer ring and the two are clearance-matched; a vent hole is set on the fixed block, and the fixed block is fixed on the fixed plate through a fixing frame; an expansion ring is sleeved on the front end of the fixed block.

[0006] Preferably, a limiting step is provided on the outer ring, and the limiting step reciprocates along with the push rod in the space enclosed by the fixing frame and the fixing plate.

[0007] Preferably, the driving mechanism is a linear push rod, the fixed end of the linear push rod is mounted on the frame and fixed relative to the fixed plate, the movable end of the linear push rod is fixedly connected to the mounting plate, the mounting plate is fixedly arranged on the push plate, and the push plate is fixedly connected to the end of the push rod.

[0008] Preferably, a damping ring is disposed on the outer surface of the push rod, and the damping ring is disposed in a through hole on the outer ring.

[0009] On the basis of the above scheme, the gas circuit system includes a vent gas circuit, an expansion ring gas circuit and a push rod gas circuit, which are respectively connected to the vent, the expansion ring and the push rod, and each of the above gas circuits is provided with a pressure reducing valve;

[0010] The vent air circuit includes a vent switch valve connected in series with the vent, a quick-blow solenoid valve is connected in parallel with the one-way valve and then connected in series with the input end of the vent switch valve, and the input end of the relief valve is connected in parallel with the output end of the vent switch valve. The quick-blow solenoid valve, the vent switch valve and the relief valve are two-position two-way valves respectively, and the vent is connected to the pressure sensor; the expansion ring air circuit includes an expansion ring solenoid valve connected in series with the expansion ring, the expansion ring solenoid valve is a two-position three-way valve, and its input end is connected to the air pump; the linear push rod is a cylinder, and the push rod air circuit includes a push rod solenoid valve connected in series with the linear push rod, the push rod solenoid valve is a two-position four-way valve, and its input end is connected to the air pump.

[0011] Preferably, the brush pressing wheel mechanism comprises a brush mounting frame, a brush driving motor, a brush mounting seat and a brush pressing wheel, the brush pressing wheels are arranged in pairs and mounted on the brush mounting seat, the brush mounting frame is fixedly mounted on the frame, the brush driving motor and the brush mounting seat are mounted on the brush mounting frame, the brush driving motor drives the brush pressing wheels to rotate relative to the brush mounting frame, and the pairs of brush pressing wheels are arranged in a rolling manner at corresponding positions of the glove fixing mechanism.

[0012] Preferably, it also includes a shell, which is fixed on the frame and covered outside the glove fixing mechanism, the air path system and the brush pressure wheel mechanism. An operation window corresponding to the position of the glove fixing mechanism, as well as a good product collection port and a bad product collection port are arranged on the side wall of the shell. The operation window, the good product collection port and the bad product collection port are through holes.

[0013] Preferably, the frame comprises a base plate, a mounting frame and a supporting frame, the mounting frame is fixedly arranged on the base plate, the transmission device is installed on the mounting frame and connected to the supporting frame, and the glove fixing mechanism is fixedly installed on the supporting frame and rotates therewith.

[0014] Based on the above solution, the transmission device includes a driving motor and a belt pulley mechanism or a sprocket mechanism driven by the driving motor.

[0015] The beneficial effects of the present invention are:

[0016] 1. Adopting automatic gas path detection to replace the water filling detection method, improve detection efficiency, save energy and protect the environment, and carry out subsequent processing without drying, which is convenient for the next step, reduces manual operation, and effectively improves the utilization rate of raw materials;

[0017] 2. The automatic detection method is adopted. After the operator puts the gloves on the equipment, the equipment will automatically complete the inflation, inspection, removal and sorting of good and bad gloves, reducing the manual operation cost and improving the operation efficiency and detection quality;

[0018] 3. Through two-step inflation, inflation posture limitation and fixed position flexible contact, the uniformity of glove inflation and fixed sealing are improved, thereby improving the quality of inflation detection;

[0019] 4. Through the coordinated action of the air system, mechanical structure and brush pressure wheel mechanism, the gloves can be effectively prevented from being damaged or deformed due to friction, pulling, etc. during the testing process, thus ensuring the quality of the gloves;

[0020] 5. It can be used to detect disposable gloves with elasticity in various industries such as medical, food, and testing, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 : Schematic diagram of the overall structure of the present invention;

[0022] Figure 2 : Schematic diagram of the internal structure of the housing of the present invention;

[0023] Figure 3 : Schematic diagram of the transmission device of the present invention;

[0024] Figure 4 : Schematic diagram of the glove fixing mechanism structure of the present invention;

[0025] Figure 5 : Schematic diagram of the gas circuit system of the present invention;

[0026] Figure 6 : A schematic structural diagram of the glove fixing mechanism of the present invention from another angle;

[0027] Figure 7 : Schematic diagram of the installation position of the outer ring of the glove fixing mechanism of the present invention;

[0028] Figure 8 : Schematic diagram of the cross-sectional structure of the glove fixing mechanism of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] like Figures 1 to 3 As shown, a disposable glove air tightness testing device includes a frame 5, a glove fixing mechanism 1, an air circuit system and a brush pressure wheel mechanism. The glove fixing mechanism 1 is arranged on the frame 5 and rotates relative to the frame 5 under the drive of a transmission device. The frame 5 includes a base plate 51, a mounting frame 52 and a support frame 53. The mounting frame 52 is fixedly arranged on the base plate 51. The transmission device is installed on the mounting frame 52, and its output end is connected to the rotation center of the support frame 53. The glove fixing mechanism 1 is fixedly installed on the support frame 53 and rotates therewith. Preferably, there are multiple glove fixing mechanisms 1, which are evenly distributed along the rotation center of the support frame 53. The number of the support frames 53 is two, which are respectively connected to the upper and lower end surfaces of the glove fixing mechanism 1 to improve the fixing effect of the glove fixing mechanism 1. As shown Figure 3 As shown, the transmission device includes a driving motor 81 and a belt pulley mechanism or a sprocket mechanism driven by the driving motor 81, and transmits power to the support frame 53 through the transmission wheel 82. The glove fixing mechanism 1 includes a glove fixing structure and an auxiliary positioning structure driven by the air circuit system; the brush pressing wheel mechanism is connected to the frame 5, specifically, it is arranged on the bottom plate 51 of the frame 5 and is arranged at a corresponding position to the glove fixing mechanism 1.

[0034] like Figures 4 to 8 As shown, the glove fixing mechanism 1 includes a driving mechanism, a push rod 21, an outer ring 22 and a fixed block 32, wherein the fixed block 32 and the outer ring 22 form a glove fixing structure, and the driving mechanism and the push rod 21 form an auxiliary positioning structure. The driving mechanism is fixedly connected to the push rod 21, and drives the push rod 21 to move back and forth along the axial direction of the fixed block 32. Preferably, the driving mechanism is a linear push rod 11, the fixed end of the linear push rod 11 is installed on the frame and is relatively fixed to the fixed plate 35, the movable end of the linear push rod 11 is fixedly connected to the mounting plate 12, the mounting plate 12 is fixedly arranged on the push plate 13, and the push plate 13 is fixedly connected to the end of the push rod 21. Through the above structure, when the linear push rod 11 is extended or retracted, the push rod 21 is driven to move relative to the fixed block 32 through the push plate 13. The outer ring 22 is sleeved on the outside of the fixed block 32, and the push rod 21 passes through the outer ring 22 and the two are clearance-matched, so that the outer ring 22 can but not completely move with the push rod 21. A vent hole is provided on the fixed block 32, and the fixed block 32 is fixedly provided on the fixed plate 35 through a fixing frame 34; an expansion ring 33 is sleeved on the front end of the fixed block 32. The gas circuit system includes a vent hole gas circuit, an expansion ring gas circuit and a push rod gas circuit, which are respectively connected to the vent hole, the expansion ring 33 and the push rod 21, and each of the above gas circuits is respectively provided with a pressure reducing valve 48 for adjusting the air pressure of each branch. The vent gas circuit includes a vent switch valve 43 connected in series with the vent, a quick-blow solenoid valve 41 connected in parallel with the one-way valve and then connected in series with the input end of the vent switch valve 43, and an input end of the air release valve 44 connected in parallel with the output end of the vent switch valve 43. Preferably, the pressurizing solenoid valve 42 is connected in series with the one-way valve and in parallel with the quick-blow solenoid valve 41. The vent switch valve 43, the pressurizing solenoid valve 42, the quick-blow solenoid valve 41 and the air release valve 44 are two-position two-way valves respectively. The vent is connected to a pressure sensor 45 for measuring the air pressure value in the glove under test. The expansion ring gas circuit includes an expansion ring solenoid valve 46 connected in series with the expansion ring 33, the expansion ring solenoid valve 46 is a two-position three-way valve, and its input end is connected to an air pump. The linear push rod 11 is a cylinder, and the push rod gas circuit includes a push rod solenoid valve 47 connected in series with the linear push rod 11, the push rod solenoid valve 47 is a two-position four-way valve, and its input end is connected to an air pump. The vent hole and the expansion ring 33 are inflated through the vent hole air inlet 421 and the expansion ring air inlet 461 respectively.

[0035] In order to increase the friction between the push rod 21 and the outer ring 22, a damping ring 23 is provided on the outer surface of the push rod 21. The damping ring 23 is arranged in the through hole on the outer ring 22. The damping ring 23 and the push rod 21 also maintain a clearance fit, so that the damping ring 23 can move relative to the push rod 21 and the outer ring 22 respectively. In order to improve the displacement trajectory stability of the push rod 21 and the outer ring 22 during the movement, the number of push rods 21 is multiple and evenly distributed along the circumference of the fixed block 32 to prevent displacement and rotation during movement. The fixed block 32 is fixedly set on the fixed plate 35 through the fixed frame 34; the outer ring 22 is provided with a limiting step 221, and the limiting step 221 moves back and forth with the push rod 21 in the space enclosed by the fixed frame 34 and the fixed plate 35, thereby limiting the movement range of the outer ring 22.

[0036] like Figure 2 As shown, the brush pressing wheel mechanism includes a brush mounting frame 61, a brush driving motor 62, a brush mounting seat 63 and a brush pressing wheel 64. The brush pressing wheels 64 are arranged in pairs and mounted on the brush mounting seat 63. The brush mounting frame 61 is fixedly mounted on the frame 5. The brush driving motor 62 and the brush mounting seat 63 are mounted on the brush mounting frame 61. The brush pressing wheel 64 is driven by the brush driving motor 62 to rotate relative to the brush mounting frame 61. The surface of the brush pressing wheel 64 is set to soft hair or other flexible materials. The paired brush pressing wheels 64 are arranged in pairs at corresponding positions of the glove fixing mechanism 1 in a rolling manner.

[0037] Preferably, two fixing blocks 32 are arranged in parallel on the fixing plate 35, and an air path structure, a glove fixing structure, an auxiliary positioning structure and a brush pressure wheel 64 are arranged in conjunction with the fixing plate 35, so as to complete the inspection of a pair of gloves at the same time and improve the inspection efficiency.

[0038] like Figure 1 As shown, the disposable glove air tightness testing device also includes a shell 7, which is fixedly arranged on the frame 5, and is covered outside the glove fixing mechanism, the air path system and the brush pressure wheel mechanism to play a role of protection and isolation. An operation window 71 corresponding to the position of the glove fixing mechanism is arranged on the side wall of the shell 7, and the glove fixing mechanism 1 at the position of the operation window 71 is exposed from the side wall of the shell 7, making it more convenient for the operator to operate. A good product collection port 72 and a bad product collection port 73 are also arranged on the side wall of the shell 7. The bad product collection port 73 is relatively located in front of the good product collection port 72 in the moving direction of the glove fixing mechanism 1, and the operation window 71, the good product collection port 72 and the bad product collection port 73 are through holes.

[0039] When the sealing performance of the gloves is tested, the operator puts the gloves on the glove fixing mechanism 1 at the operating window 71, and the transmission device drives the glove fixing mechanism 1 to rotate relative to the frame 5. During the rotation, the sealing performance of the gloves is tested. After the test is completed, the glove fixing mechanism 1 is rotated to the brush pressure wheel mechanism to complete the glove detachment action. Specifically, the operator puts the wrist of the glove to be tested on the front end of the fixed block 32, stretches the outside of the latex glove and uses friction to preliminarily fix it. At this time, there is no gas inside the glove, and it is in a naturally drooping state. At this time, the vent switch valve 43 and the pressurizing solenoid valve 42 are actuated, and pre-inflate the glove through the vent air inlet 421 and the vent, so that the glove changes from a drooping state to a state close to being parallel to the axis of the fixed block 32; next, the push rod solenoid valve 47 is driven to act, so that the push rod 21 moves forward relative to the glove with the outer ring 22 under the action of the linear push rod 11, and after the limit step 221 of the outer ring 22 is stuck at the front end of the fixed plate 35, the outer ring 22 stops moving, and the push rod 21 continues to move forward to the outside of the glove, which limits the posture of the glove and ensures that the palm position and the finger position can be evenly inflated during inflation detection; then the expansion ring solenoid valve 46 is actuated to inflate the expansion ring 33, stretch the glove, and cooperate with the inner ring of the outer ring 22 to clamp and fix the glove. After the pressure solenoid valve 42 and the vent switch valve 43 are pressurized to a preset value, they stop operating. Due to the properties of the glove material itself and the sealing condition, the internal pressure of the glove gradually decreases over time. The pressure value is measured and transmitted by the pressure sensor 45. The air tightness of the disposable glove is judged to be qualified according to the pressure change. After the detection is completed, the glove rotates to the brush pressure wheel mechanism with the glove fixing mechanism 1, and the glove is transferred to the middle position of the brush pressure wheel 64. The glove is pulled by the rolling action of the brush pressure wheel 64. At the same time, the push rod solenoid valve 47 changes its working position, so that the push rod 21 moves backward. After the glove passes through the brush pressure wheel mechanism, the quick blowing solenoid valve 41 is activated to quickly inflate the inside of the glove. At this time, the deflation valve 44 is in an open state to avoid excessive internal pressure. After the quick blowing solenoid valve 41 is activated for a period of time, the expansion ring solenoid valve 46 is activated to deflate the expansion ring 33, thereby quickly blowing the glove off. By blowing off qualified gloves and unqualified gloves at different positions, the separation and classification of gloves of different qualities are completed.

[0040] Preferably, when testing the PVC gloves, since the PVC gloves have a large expansion volume, the push rod 21 only moves the outer ring 22 to a position that matches the expansion ring 33 and then does not extend any further.

[0041] The present invention is described above by way of examples, but the present invention is not limited to the above specific embodiments, and any changes or modifications made based on the present invention belong to the scope of protection claimed by the present invention.

Claims

1. A disposable glove air tightness testing device, characterized in that: The glove fixing mechanism (1) comprises a frame (5), a glove fixing mechanism (1), an air circuit system and a brush pressing wheel mechanism, wherein the glove fixing mechanism (1) is arranged on the frame (5) and rotates relative to the frame (5) under the drive of a transmission device; the glove fixing mechanism (1) comprises a glove fixing structure and an auxiliary positioning structure driven by the air circuit system; the brush pressing wheel mechanism is connected to the frame (5) and is arranged at a position corresponding to the glove fixing mechanism (1); The glove fixing mechanism (1) comprises a driving mechanism, a push rod (21), an outer ring (22) and a fixing block (32); the driving mechanism is fixedly connected to the push rod (21) and drives the push rod (21) to move back and forth axially along the fixing block (32); the outer ring (22) is sleeved on the outside of the fixing block (32); the push rod (21) passes through the outer ring (22) and the two are clearance-matched; a vent hole is provided on the fixing block (32); the fixing block (32) is fixedly provided on the fixing plate (35) via a fixing frame (34); an expansion ring (33) is sleeved on the front end of the fixing block (32); A limiting step (221) is provided on the outer ring (22), and the limiting step (221) reciprocates along with the push rod (21) in a space enclosed by the fixing frame (34) and the fixing plate (35); The push rod (21) is provided with a damping ring (23) on its outer shell, and the damping ring (23) is arranged in a through hole on the outer ring (22).

2. The disposable glove air tightness testing device according to claim 1, characterized in that: The driving mechanism is a linear push rod (11), the fixed end of the linear push rod (11) is mounted on the frame and fixed relative to the fixed plate (35), the movable end of the linear push rod (11) is fixedly connected to the mounting plate (12), the mounting plate (12) is fixedly arranged on the push plate (13), and the push plate (13) is fixedly connected to the end of the push rod (21).

3. The disposable glove air tightness testing device according to claim 2, characterized in that: The gas circuit system comprises a vent gas circuit, an expansion ring gas circuit and a push rod gas circuit, which are respectively connected to the vent, the expansion ring (33) and the push rod (21), and each of the gas circuits is provided with a pressure reducing valve (48); The vent gas circuit comprises a vent switch valve (43) connected in series with the vent, a quick blow solenoid valve (41) connected in parallel with the one-way valve and then connected in series with the input end of the vent switch valve (43), an input end of the air release valve (44) connected in parallel with the output end of the vent switch valve (43), the quick blow solenoid valve (41), the vent switch valve (43) and the air release valve (44) are two-position two-way valves respectively, and the vent is connected to a pressure sensor (45); the expansion ring gas circuit comprises an expansion ring solenoid valve (46) connected in series with the expansion ring (33), the expansion ring solenoid valve (46) is a two-position three-way valve, and its input end is connected to an air pump; the linear push rod (11) is a cylinder, and the push rod gas circuit comprises a push rod solenoid valve (47) connected in series with the linear push rod (11), the push rod solenoid valve (47) is a two-position four-way valve, and its input end is connected to an air pump.

4. The disposable glove air tightness testing device according to claim 1, characterized in that: The brush pressing wheel mechanism comprises a brush mounting frame (61), a brush driving motor (62), a brush mounting seat (63) and a brush pressing wheel (64); the brush pressing wheels (64) are arranged in pairs in contact with each other and mounted on the brush mounting seat (63); the brush mounting frame (61) is fixedly mounted on a frame (5); the brush driving motor (62) and the brush mounting seat (63) are mounted on the brush mounting frame (61); the brush pressing wheels (64) are driven by the brush driving motor (62) to rotate relative to the brush mounting frame (61); and the pairs of brush pressing wheels (64) are arranged in a rolling manner at corresponding positions of the glove fixing mechanism (1).

5. The disposable glove air tightness testing device according to claim 1, characterized in that: The invention also comprises a shell (7), wherein the shell (7) is fixedly mounted on the frame (5) and covers the glove fixing mechanism, the air path system and the brush pressing wheel mechanism. An operation window (71) corresponding to the position of the glove fixing mechanism, as well as a good product collection port (72) and a bad product collection port (73) are arranged on the side wall of the shell (7); the operation window (71), the good product collection port (72) and the bad product collection port (73) are through holes.

6. The disposable glove air tightness testing device according to claim 1, characterized in that: The frame (5) comprises a base plate (51), a mounting frame (52) and a support frame (53); the mounting frame (52) is fixedly mounted on the base plate (51); the transmission device is mounted on the mounting frame (52) and connected to the support frame (53); and the glove fixing mechanism (1) is fixedly mounted on the support frame (53) and rotates therewith.

7. The disposable glove air tightness testing device according to claim 6, characterized in that: The transmission device comprises a driving motor (81) and a belt pulley mechanism or a sprocket mechanism driven by the driving motor.

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