Hose leak detection machine

Abstract

The invention discloses a hose leak hunting machine, and relates to the technical field of hose leak hunting, and the hose leak hunting machine comprises a rack which is provided with a first working position and a second working position; the conveying mechanism is arranged on the rack; the number of the pipe groove assemblies is two, the pipe groove assemblies are used for bearing hoses, and the conveying mechanism drives the two pipe groove assemblies to circularly move between a first working position and a second working position in a reciprocating mode, so that when one pipe groove assembly loads the hoses from the first working position, the other pipe groove assembly bearing the hoses conducts leakage detection at the second working position; and the detection mechanism is arranged on the rack and is used for carrying out leak detection on the hose at the second working position. According to the technical scheme provided by the invention, the feeding action and the leak hunting action are alternately carried out, so that the leak hunting speed of the hose is increased, the continuity of online production is ensured, simultaneous production assembly and simultaneous leak hunting are facilitated, the production efficiency is improved, longer leak hunting time is ensured, and the leak hunting accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of hose leak detection, in particular to a hose leak detector. Background Art

[0002] The packaging of hoses has very strict requirements on sealing. If a poor seal is found before filling, it will lead to batch returns. If a leak is found after filling, it may lead to the recall of finished products, which will cause serious losses. There are many reasons for hose leakage. For example, ordinary hoses and functional head hoses may leak. The leakage point may be at the weld position of the sheet tube, the joint between the tube body and the tube shoulder, or the matching position of the functional head or tube cover. Leakage sometimes also comes from assembly and cooling. Although many hoses now use online leak detection, there are still problems of slow leak detection speed and low efficiency. Summary of the invention

[0003] The main purpose of the invention is to provide a hose leak detector, aiming to solve the problem of slow online leak detection speed.

[0004] To achieve the above object, the hose leak detector proposed by the present invention comprises:

[0005] A frame having a first working position and a second working position;

[0006] A conveying mechanism, arranged on the frame;

[0007] Two pipe trough assemblies are provided, and the pipe trough assemblies are used to carry the hose. The conveying mechanism drives the two pipe trough assemblies to cyclically reciprocate between the first working position and the second working position, so that while one pipe trough assembly loads the hose from the first working position, the other pipe trough assembly carrying the hose is leak-detected at the second working position; and

[0008] A detection mechanism is arranged on the frame, and is used for detecting leaks of the hose at the second working position.

[0009] In one embodiment, the conveying mechanism also includes a mounting seat, a first synchronous belt and a second synchronous belt, the mounting seat is arranged on the frame, the first synchronous belt and the second synchronous belt are both arranged on the mounting seat, and the two pipe trough assemblies are respectively arranged on the first synchronous belt and the second synchronous belt to realize the cyclic movement of the two pipe trough assemblies from the first working position and the second working position.

[0010] In one embodiment, the conveying mechanism comprises:

[0011] A first driving shaft, rotatably disposed on one end of the mounting seat;

[0012] A second driving shaft, rotatably disposed at the other end of the mounting seat;

[0013] Two first pulley assemblies are provided, wherein one of the first pulley assemblies is drivingly connected to the first drive shaft, and the other first pulley assembly is rotationally connected to the second drive shaft, and the two first pulley assemblies drive the first synchronous belt to rotate; and

[0014] Two second pulley assemblies are provided, wherein one of the second pulley assemblies is rotationally connected to the first drive shaft, and the other second pulley assembly is drivingly connected to the second drive shaft, and the two second pulley assemblies drive the second synchronous belt to rotate;

[0015] Wherein, the first synchronous belt is drivingly connected to the first pulley assembly, and the second synchronous belt is drivingly connected to the second pulley assembly.

[0016] In one embodiment, the tube groove assembly includes a plurality of support seats arranged at intervals along a first direction, each of the support seats is provided with a support groove, and the support groove is used to place the hose;

[0017] Wherein, the extending direction of the supporting groove is a second direction, and the first direction is different from the second direction.

[0018] In one embodiment, the detection mechanism comprises:

[0019] A mounting frame, disposed at the second working position;

[0020] A plurality of leak detection assemblies are provided, and the plurality of leak detection assemblies are spaced apart on the mounting frame along the first direction, and each leak detection assembly corresponds to a support groove of the second working position, so as to perform leak detection on the plurality of hoses on the pipe groove assembly of the second working position.

[0021] In one embodiment, the leak detection assembly comprises:

[0022] A sealing part, the sealing part is installed on one side of the mounting frame, and the sealing part is provided with a vent hole along the second direction;

[0023] a pushing structure, the pushing structure being disposed on the other side of the mounting frame, the pushing structure pushing the hose in the supporting groove along the second direction so that the tail of the hose abuts against the sealing portion;

[0024] A ventilation structure connected to the ventilation hole to ventilate the hose through the ventilation hole;

[0025] A pressure gauge is connected to the ventilation structure and the sealing part to detect pressure changes.

[0026] In one embodiment, the detection mechanism further includes a driving component, which is disposed on the mounting frame and drives the sealing portion and the pushing structure to connect so that the sealing portion and the pushing structure move closer to or farther from each other in the second direction.

[0027] In one embodiment, the hose leak detector further includes a waste box and a tube conveyor belt, wherein the waste box and the tube conveyor belt are located on both sides of the second working position, the waste box is used to accommodate the hoses that fail the inspection, and the tube conveyor belt is used to convey the hoses that pass the inspection.

[0028] In one embodiment, the hose leak detector further comprises a transport mechanism, and the transport mechanism is used to transport the qualified hose detected at the second working position to the pipe outlet conveyor belt, and transport the unqualified hose to the waste box.

[0029] In one embodiment, the transport mechanism comprises:

[0030] A support frame, arranged at the second working position;

[0031] A translation assembly, arranged on the support frame;

[0032] A lifting component is arranged on the translation component and is connected to the detection mechanism. The translation component drives the lifting component to move along the second direction to approach the pipe outlet conveyor belt or the waste box. The lifting component drives the mounting frame to rise and fall in the vertical direction so that the leak detection component approaches or moves away from the pipe groove component in the second working position.

[0033] In the technical solution of the present invention, a conveying mechanism extending along a first direction is arranged on a frame, the conveying mechanism connects a first working position and a second working position on the frame, two pipe slot assemblies are placed on the conveying mechanism, and the two pipe slot assemblies are respectively circulated between the first working position and the second working position by driving the conveying mechanism, wherein the pipe slot assembly on the first working position is used for loading, and the assembled hose is placed on the pipe slot assembly at the first working position, at this time another group of pipe slot assemblies is at the second working position, and the hose carried by the pipe slot assembly at the second working position is leak tested by a detection mechanism, when the leak test of the hose carried by the pipe slot assembly at the second working position is completed, the loading of the pipe slot assembly at the first working position is also completed, and the pipe slot assembly originally located at the first working position is moved to the second working position by the conveying mechanism, and leak test is performed at the second working position, and the pipe slot assembly originally located at the second working position Move to the first working position for loading, and cycle the above actions, through a conveying mechanism to make one of the tube slot components pause for loading, and the other tube slot component pause for leak detection through a detection mechanism, so as to realize the alternation of loading action and leak detection action, improve the speed of hose leak detection, ensure the continuity of line production, facilitate simultaneous production and assembly and leak detection, and improve production efficiency. In addition, since the two tube slot components perform loading action and leak detection action at the first working position and the second working position respectively, they do not affect each other, and the tube slot component 110 can pause for many times at the first working position, and a hose is put in each pause, so that the hoses are arranged in sequence. When one of the tube slot components is at the first working position, it takes a long time to load multiple hoses, and the other tube slot component can use a longer time to perform leak detection at the second working position. The longer the leak detection time, the more accurate the detection of air pressure fluctuations, avoiding misjudgment caused by short time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 the structures shown in these drawings without paying creative work.

[0035] Figure 1 A schematic structural diagram of an embodiment of a hose leak detector provided by the present invention;

[0036] Figure 2 A schematic diagram of the structure of the conveying mechanism in the hose leak detector provided by the present invention;

[0037] Figure 3 A schematic structural diagram of another embodiment of the conveying mechanism in the hose leak detector provided by the present invention;

[0038] Figure 4 A schematic diagram of the structure of the transport mechanism in the hose leak detector provided by the present invention;

[0039] Figure 5 A schematic diagram of the structure of the detection mechanism in the hose leak detector provided by the present invention;

[0040] Figure 6 This is a schematic structural diagram of a tube groove assembly in a hose leak detector provided by the present invention.

[0041] Description of Figure Numbers:

[0042] 100, frame; 110, pipe trough assembly; 111, support base; 112, support trough; 120, first working position; 130, second working position;

[0043] 200, conveying mechanism; 210, mounting seat; 220, first synchronous belt; 230, second synchronous belt; 240, first driving shaft; 250, second driving shaft; 260, first pulley assembly; 270, second pulley assembly;

[0044] 300, detection mechanism; 310, mounting frame; 320, leak detection assembly; 321, sealing portion; 3211, vent hole; 322, pushing structure; 330, driving assembly; 331, guide rod; 332, sliding portion; 333, locking member; 340, first mounting plate; 350, second mounting plate;

[0045] 400, tube conveyor belt; 410, waste box;

[0046] 500, transport mechanism; 510, support frame; 520, translation assembly; 530, lifting assembly; 531, support plate; 532, drive motor; 533, lead screw; 534, guide cylinder; 535, guide rod.

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0049] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0050] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0051] The packaging of hoses has very strict requirements on sealing. If a poor seal is found before filling, it will lead to batch returns. If a leak is found after filling, it may lead to the recall of finished products, resulting in serious losses. There are many reasons for hose leakage. For example, ordinary hoses and functional head hoses may leak. The leakage point may be at the weld position of the sheet tube, the joint between the tube body and the tube shoulder, or the matching position of the functional head or the tube cover. Leakage sometimes also comes from assembly and cooling. Although many hoses now use online leak detection, there are still problems of slow leak detection speed and low efficiency.

[0052] The invention provides a hose leak detector.

[0053] See also Figure 1 and Figure 2 In one embodiment of the present invention, the hose leak detector comprises:

[0054] The frame 100 has a first working position 120 and a second working position 130;

[0055] The conveying mechanism 200 is provided on the frame 100;

[0056] Two pipe trough assemblies 110 are provided. The pipe trough assemblies 110 are used to carry the hose. The conveying mechanism 200 drives the two pipe trough assemblies 110 to move back and forth between the first working position 120 and the second working position 130, so that while one pipe trough assembly 110 is loading the hose from the first working position 120, the other pipe trough assembly 110 carrying the hose is leaking at the second working position 130; and

[0057] The detection mechanism 300 is disposed on the frame 100 , and is used to detect leaks of the hose at the second working position 130 .

[0058] In the technical solution of the present invention, please refer to Figure 1 On the frame 100, a conveying mechanism 200 extending along the first direction is provided, the conveying mechanism 200 connects the first working position 120 and the second working position 130 on the frame 100, two tube trough assemblies 110 are placed on the conveying mechanism 200, and the two tube trough assemblies 110 are driven by the conveying mechanism 200 to circulate between the first working position 120 and the second working position 130, wherein the tube trough assembly 110 on the first working position 120 is used for loading, and the assembled hose is placed on the tube trough assembly 110 of the first working position 120. The tube trough assembly 110 is mounted on the second working position 130. At this time, another group of tube trough assemblies 110 are at the second working position 130. The detection mechanism 300 is used to detect the leak of the hose carried by the tube trough assembly 110 at the second working position 130. When the leak detection of the hose carried by the tube trough assembly 110 at the second working position 130 is completed, the tube trough assembly 110 at the first working position 120 is also loaded. The conveying mechanism 200 is used to move the tube trough assembly 110 originally located at the first working position 120 to the second working position 130, and the detection mechanism 300 is used to detect the leak of the hose carried by the tube trough assembly 110 at the second working position 130. Leak detection, the tube trough assembly 110 originally located at the second working position 130 moves to the first working position 120 for loading, and the above-mentioned actions are repeated, and one of the tube trough assemblies 110 is stopped for loading through a conveying mechanism 200, and the other tube trough assembly 110 is stopped for leak detection through a detection mechanism 300, so as to realize the alternation of loading action and leak detection action, thereby improving the speed of hose leak detection, ensuring the continuity of line production, facilitating simultaneous production and assembly and leak detection, and improving production efficiency. In addition, since the two tube trough assemblies 110 are respectively in the first working position The loading action and the leak detection action are performed at the first working position 120 and the second working position 130 without affecting each other, and the tube slot assembly 110 can pause for multiple times at the first working position 120, and a hose is put in each pause so that the hoses are arranged in sequence. When one of the tube slot assemblies 110 is at the first working position 120, it takes a long time to load multiple hoses, and the other tube slot assembly 110 can use a longer time to perform leak detection at the second working position 130. The longer the leak detection time, the more accurate the detection of air pressure fluctuations, thereby avoiding misjudgment caused by short time.

[0059] In an embodiment of the present invention, the conveying mechanism 200 also includes a mounting seat 210, a first synchronous belt 220 and a second synchronous belt 230. The mounting seat 210 is arranged on the frame 100, the first synchronous belt 220 and the second synchronous belt 230 are both arranged on the mounting seat 210, and the two pipe trough assemblies 110 are respectively arranged on the first synchronous belt 220 and the second synchronous belt 230 to realize the cyclic movement of the two pipe trough assemblies 110 from the first working position 120 to the second working position 130.

[0060] Please refer to Figure 2 and Figure 3 The mounting seat 210 is mounted on the upper surface of the platform of the frame 100 and extends along the first direction. The first synchronous belt 220 and the second synchronous belt 230 are rotatably arranged on the mounting seat 210 along the first direction, and both ends of the first synchronous belt 220 and the second synchronous belt 230 are rotatably connected to both ends of the mounting seat 210. The first synchronous belt 220 and the second synchronous belt 230 are arranged in parallel. The two pipe slot assemblies 110 are respectively mounted on the first synchronous belt 220 and the second synchronous belt 230, and the pipe slot assembly 110 mounted on the first synchronous belt 220 and the second synchronous belt 230, the tube slot assembly 110 installed on the second synchronous belt 230 does not contact the first synchronous belt 220, that is, the first synchronous belt 220 drives one of the tube slot assemblies 110 to move back and forth in a circumferential direction between the first working position 120 and the second working position 130, and the second synchronous belt 230 drives the other tube slot assembly 110 to move back and forth between the first working position 120 and the second working position 130, so that the movements of the two tube slot assemblies 110 between the first working position 120 and the second working position 130 do not affect each other.

[0061] In an embodiment of the present invention, the conveying mechanism 200 comprises:

[0062] A first driving shaft 240 is rotatably mounted on one end of the mounting base 210;

[0063] A second driving shaft 250 is rotatably disposed at the other end of the mounting base 210;

[0064] Two first pulley assemblies 260 are provided, wherein one first pulley assembly 260 is drivingly connected to the first driving shaft 240, and the other first pulley assembly 260 is rotationally connected to the second driving shaft 250, and the two first pulley assemblies 260 drive the first synchronous belt 220 to rotate; and

[0065] Two second pulley assemblies 270 are provided, wherein one second pulley assembly 270 is rotatably connected to the first drive shaft 240, and the other second pulley assembly 270 is drivingly connected to the second drive shaft 250, and the two second pulley assemblies 270 drive the second synchronous belt 230 to rotate;

[0066] The first synchronous belt 220 is drivingly connected to the first pulley assembly 260 , and the second synchronous belt 230 is drivingly connected to the second pulley.

[0067] Please refer to Figure 2 and Figure 3 A first drive shaft 240 and a second drive shaft 250 are rotatably arranged at both ends of the mounting seat 210, and a first motor and a second motor are connected to both ends of the mounting seat 210, respectively. The first motor and the second motor drive the first drive shaft 240 and the second drive shaft 250 to rotate respectively, wherein a first pulley assembly 260 is drivingly connected to the first drive shaft 240 at one end of the mounting seat 210, and another first pulley assembly 260 is rotatably connected to the second drive shaft 250 through a bearing at the other end of the mounting seat 210, and both ends of the first synchronous belt 220 are connected to the two first pulley assemblies 260, so that the first drive shaft 240 is driven by the first motor 220. 40 rotates, the first drive shaft 240 rotates to drive the first pulley assembly 260 connected thereto to rotate, the first pulley assembly 260 rotates to drive the first synchronous belt 220 to rotate, the first synchronous belt 220 drives the first pulley assembly 260 connected to the second drive shaft 250 to rotate, since the first pulley assembly 260 on the second drive shaft 250 is connected to the second drive shaft 250 through a bearing, the rotations therebetween do not affect each other, that is, the first synchronous belt 220 is driven to rotate by the first motor, and the tube slot assembly 110 on the first synchronous belt 220 is also driven to move back and forth in a circumferential direction at the first working position 120 and the second working position 130.

[0068] That is, it can be understood that the second synchronous belt 230 is similar to the first synchronous belt 220, the second motor drives the second drive shaft 250 to rotate, a second pulley assembly 270 is connected to the second drive shaft 250 at one end of the mounting seat 210, and the other second pulley assembly 270 is connected to the first drive shaft 240 at the other end of the mounting seat 210 through a bearing, that is, the rotation of the first drive shaft 240 and the rotation of the second pulley assembly 270 do not affect each other, and the two ends of the second synchronous belt 230 are respectively connected to the two second pulley assemblies 270, when the second motor drives the second drive shaft 250 to rotate, and then the second drive The rotation of the shaft 250 drives the second pulley assembly 270 installed on the second drive shaft 250 to rotate, and the second pulley assembly 270 on the second drive shaft 250 drives the second synchronous belt 230 to rotate. The rotation of the second synchronous belt 230 drives the second pulley assembly 270 away from the second drive shaft 250 to rotate, that is, the second synchronous belt 230 is driven to rotate by the second motor and drives the tube slot assembly 110 on the second synchronous belt 230 to move back and forth in a circumferential direction between the first working position 120 and the second working position 130, and the movements of the two tube slot assemblies 110 do not interfere with each other, so as to perform different actions alternately.

[0069] In an embodiment of the present invention, the tube groove assembly 110 includes a plurality of support seats 111 spaced apart along a first direction, each support seat 111 is provided with a support groove 112, and the support groove 112 is used to place a hose;

[0070] The extending direction of the supporting groove 112 is the second direction, and the first direction is different from the second direction.

[0071] Please refer to Figure 2 and Figure 6 , a plurality of support seats 111 are arranged on the first synchronous belt 220 / the second synchronous belt 230 at intervals in the first direction, and the two ends of the support seats 111 along the second direction are respectively fixed to the mounting seat 210, and each support seat 111 is provided with a support groove 112 extending along the second direction, the first direction is perpendicular to the second direction, and the hose is placed in the support groove 112 along the second direction, that is, the pipe head and the pipe tail of the hose are respectively located at the two ends of the support groove 112 along the second direction, and when the pipe groove assembly 110 moves to the first working position 120 for loading, the first synchronous belt 110 is connected to the first synchronous belt 230, and the first synchronous belt 230 is connected to the first synchronous belt 230. The step belt 220 / second synchronous belt 230 rotates from the bottom of the mounting seat 210 to the top of the mounting seat 210, and each support seat 111 will pause when it rotates to the first working position 120 to wait for loading in the support groove 112. For example, the first motor drives the first drive shaft 240 to rotate, and the first synchronous belt 220 drives the tube groove assembly 110 to move from the second working position 130 to the first working position 120. The first synchronous belt 220 is connected to one side of the tube groove assembly 110 and rotates from the bottom of the mounting seat 210 to the top of the mounting seat 210. Each When the support seat 111 rotates to the top of the mounting seat 210, the first motor stops running, so that the first synchronous belt 220 can stop one by one to put the hose into each support groove 112. At this time, the second motor drives the second synchronous belt 230 to rotate and drives another tube groove assembly 110 to move to the second working position 130, so that each support groove 112 corresponds to the detection mechanism 300, and the detection mechanism 300 is used to simultaneously detect the leakage of the hose in each support groove 112, that is, the first synchronous belt 220 stops one by one to place the hose in each tube groove assembly 110. When materials are loaded one by one in each support slot 112, the other tube slot assembly 110 is uniformly performing leak detection at the second working position 130. The two tube slot assemblies 110 operate alternately to ensure the continuity of the production line and improve the leak detection speed. When one tube slot assembly 110 stops loading materials on each support seat 111 one by one, the other tube slot assembly 110 at the second working position 130 can ensure a longer static leak detection time. The longer the leak detection time is, the more accurate the detection of air pressure fluctuations is, thereby avoiding the failure to detect tiny air pressure changes in a short time and avoiding misjudgment.

[0072] In an embodiment of the present invention, the detection mechanism 300 includes:

[0073] The mounting frame 310 is disposed at the second working position 130;

[0074] There are multiple leak detection assemblies 320, which are arranged on the mounting frame 310 at intervals along the first direction. Each leak detection assembly 320 corresponds to a support groove 112 of the second working position 130 to perform leak detection on multiple hoses on the pipe groove assembly 110 of the second working position 130.

[0075] Please refer to Figure 4 The detection mechanism 300 includes a mounting frame 310 and a leak detection assembly 320. A plurality of leak detection assemblies 320 are arranged on the mounting frame 310 at intervals along the first direction. When the pipe slot assembly 110 moves to the second working position 130, each leak detection assembly 320 corresponds to a support seat 111, and leak detection is performed on the hose supported by each support seat 111 at the same time. At this time, another group of pipe slot assemblies 110 pause at the first working position 120 one by one to complete the loading in each support slot 112. The leak detection time does not exceed the time for pausing and loading at the first working position 120. The two pipe slots act alternately without interfering with each other, thereby ensuring sufficient leak detection time, which not only improves the leak detection efficiency, but also makes the leak detection stable and accurate.

[0076] In an embodiment of the present invention, the leak detection assembly 320 includes:

[0077] A sealing portion 321, the sealing portion 321 is installed on one side of the mounting frame 310, and the sealing portion 321 is provided with a vent hole 3211 along the second direction;

[0078] A pushing structure 322, which is disposed on the other side of the mounting frame 310, and pushes the hose in the supporting groove 112 along the second direction so that the rear end of the hose abuts against the sealing portion 321;

[0079] A ventilation structure connected to the ventilation hole 3211 to allow air to flow into the hose through the ventilation hole 3211;

[0080] The pressure gauge is connected to the ventilation structure and the sealing portion 321 to detect pressure changes.

[0081] Please refer to Figure 5The leak detection assembly 320 includes a sealing portion 321 and a pushing structure 322, which are respectively arranged on both sides of the mounting frame 310 along the second direction. The sealing portion 321 is provided with a vent hole 3211 along the second direction. When one of the tube slot assemblies 110 carrying the hose reaches the second working position 130, the pushing structure 322 applies pressure toward the sealing portion 321 along the second direction toward the hose head at one end of the supporting slot 112, so that the tail of the hose is pressed tightly against the sealing portion 321, and the sealing portion 321 is deformed accordingly to adapt to the shape of the hose tail. At this time, the air inlet on the hose tail corresponds to the vent hole 3211, so that the hose tail is sealed, and the hose tail is tightly fitted with the sealing portion 321 to avoid leakage of the air inlet. The air pipe, the pressure gauge and the solenoid valve are connected to the air vent 3211, and the solenoid valve is connected to the ventilation structure. When the sealing part 321 cooperates with the pushing structure 322 to seal the hose, the solenoid valve is opened, and compressed air is injected into the hose cavity through the air inlet. After the set pressure is reached, the solenoid valve is closed, and the injection of compressed air into the hose is stopped. After waiting for a certain period of time, the pressure gauge detects whether the pressure changes. If the pressure changes, the hose is poorly sealed and there is a leak. If the pressure does not change, the hose is a qualified product. Multiple leak detection components 320 can be used to detect leaks on multiple hoses at the same time, which is more efficient. Generally, the number of leak detection components 320 is the same as the number of support seats 111 in each pipe slot component 110, and the distance between them along the first direction is also the same.

[0082] Among them, the sealing part 321 can be made of soft rubber material so that when receiving the pressure of the pushing structure 322, it can undergo adaptive deformation to better seal the tube tail. The pushing structure 322 can use a linear drive structure such as a cylinder, a hydraulic cylinder or an electric telescopic rod to apply a force to the hose along the second direction to push the hose toward the sealing part 321.

[0083] In an embodiment of the present invention, the detection mechanism 300 further includes a driving assembly 330 , which is disposed on the mounting frame 310 and drives the connecting sealing portion 321 and the pushing structure 322 to move closer to or farther from each other in the second direction.

[0084] Please refer to Figure 5A driving assembly 330 is installed at both ends of the mounting frame 310 along the first direction, and a first mounting plate 340 and a second mounting plate 350 are respectively arranged on both sides along the second direction. The first mounting plate 340 and the second mounting plate 350 both extend along the first direction, and the first mounting plate 340 is used to install the sealing portion 321 at intervals, and the second mounting plate 350 is used to install the pushing structure 322 at intervals. The driving assembly 330 includes a guide rod 331, a sliding portion 332 and a locking member 333. Two sliding portions 332 are arranged on the periphery of the guide rod 331, and the guide rod 331 is also connected to the mounting frame 310 at the middle of the two sliding portions 332. The two sliding portions 332 on the guide rod 331 are respectively connected to the first mounting plate 340 and the second mounting plate 350. A locking piece 333 is provided, and the locking piece 333 is connected to the guide rod 331 by a tightening screw. In this embodiment, the distance between the pushing structure 322 and the sealing part 321 can be adjusted along the length direction of the guide rod 331 through the sliding part 332 to adapt to hoses of different lengths and facilitate leak detection of hoses of different lengths. When it is necessary to adjust the distance between the pushing structure 322 and the sealing part 321, the tightening screw is loosened. At this time, the locking piece 333 and the guide rod 331 are in a non-locked state, and the two sliding parts 332 on the guide rod 331 are slid on the guide rod 331 to make the first mounting plate 340 and the second mounting plate 350 approach each other or move away from each other. After reaching a suitable distance, the locking piece 333 is locked on the guide rod 331 by the tightening screw.

[0085] In an embodiment of the present invention, the hose leak detector further includes a waste box 410 and a tube conveyor belt 400, which are located on both sides of the second working position 130. The waste box 410 is used to accommodate hoses that fail the inspection, and the tube conveyor belt 400 is used to convey hoses that pass the inspection.

[0086] Please refer to Figure 1 A waste box 410 and a pipe conveyor belt 400 are respectively arranged on both sides of the conveying mechanism 200 of the frame 100 along the second direction. When the leak detection component 320 completes the leak detection of the hose on the pipe groove component 110, the qualified hose without leakage is placed on the pipe conveyor belt 400 and sent to the next process, while the unqualified hose with leakage is placed in the waste box 410 for easy classification.

[0087] In an embodiment of the present invention, the hose leak detector further includes a transport mechanism 500, which is used to transport qualified hoses detected at the second working position 130 to the pipe outlet conveyor belt 400, and to transport unqualified hoses to the waste box 410. By setting up the transport mechanism 500 to classify the hoses, manual participation can be reduced, efficiency can be improved, and costs can be reduced.

[0088] In an embodiment of the present invention, the transport mechanism 500 comprises:

[0089] The support frame 510 is disposed at the second working position 130;

[0090] The translation assembly 520 is disposed on the support frame 510;

[0091] The lifting assembly 530 is arranged on the translation assembly 520 and is connected to the detection mechanism 300. The translation assembly 520 drives the lifting assembly 530 to move along the second direction to approach the pipe outlet conveyor belt 400 or the waste box 410. The lifting assembly 530 drives the mounting frame 310 to rise and fall in the vertical direction so that the leakage detection assembly 320 is close to or away from the pipe groove assembly 110 at the second working position 130.

[0092] Please refer to Figure 4 The transport mechanism 500 includes a support frame 510, a translation assembly 520 and a lifting assembly 530. The support frame 510 is installed on the frame 100. The support frame 510 can be a gantry frame, and the translation assembly 520 and the lifting assembly 530 are both installed on the support frame 510. The lifting assembly 530 drives the mounting frame 310 to move up and down in the vertical direction, and then drives the lifting assembly 530 to move in the second direction through the translation assembly 520, so that the lifting assembly 530 and the mounting frame 310 are close to the waste box 410. Or the tube conveyor belt 400, specifically, the lifting assembly 530 includes a support plate 531, the support plate 531 is arranged in parallel with the mounting frame 310, and the support plate 531 is located above the mounting frame 310, a driving motor 532 and a screw rod 533 are arranged on the support plate 531, the output end of the driving motor 532 is connected to a synchronous wheel, the outer periphery of the screw rod 533 is threadedly connected to a synchronous wheel, the two synchronous wheels are connected by a conveyor belt, the screw rod 533 passes through the support plate 531 and is connected to the mounting frame 310, and the driving motor 532 is driven by The synchronous wheel rotates, so that the screw rod 533 moves in the vertical direction, and then the mounting frame 310 moves in the vertical direction. An outer frame (not shown) is provided on the periphery of the driving motor 532, the two synchronous wheels and the conveyor belt to prevent dust from entering and avoid affecting the stability of the operation. In addition, a guide cylinder 534 is provided on the support plate 531, and a guide rod 535 is slidably provided in the guide cylinder 534. The guide rod 535 passes downward through the support plate 531 and is connected to the mounting frame 310. When the motor starts to drive the mounting frame 310 to rise and fall, the mounting frame The guide rod 535 connected to 310 slides in the guide cylinder 534 to improve the stability of lifting and lowering. The translation assembly 520 includes a motor and a belt. The belt extends along the second direction on the support frame 510. One end of the support plate 531 is connected to the belt. The motor drives the belt to rotate, so that the support plate 531 moves along the second direction on the support frame 510, thereby driving the leakage detection assembly 320 to move along the second direction. A slider is set at the other end of the support plate 531, and cooperates with a guide rail extending along the second direction set on the support frame 510.

[0093] The specific implementation process is as follows: when the tube slot assembly 110 carrying the hose moves to the second working position 130, at this time, the translation assembly 520 drives the lifting assembly 530 to move to the top of the tube slot assembly 110 in the second working position 130, and the lifting assembly 530 drives the mounting frame 310 to descend, so that each leak detection assembly 320 corresponds to a support slot 112, which is convenient for the leak detection assembly 320 to perform leak detection on the hose in the support slot 112. When the leak detection is completed, the pushing structure 322 continues to cooperate with the sealing part 321 to press the hose, and the lifting assembly 530 drives the mounting frame 310 to rise, and the translation assembly 520 drives the lifting assembly 530 to move along the second direction toward the waste box 410, and releases The unqualified hose is placed in the waste bin 410 and is specifically caused to fall into the waste bin 410 by the retraction of the push structure 322 corresponding to the hose. At this time, the distance between the hose and the sealing portion 321 increases, thereby releasing the hose. For example, if the push structure 322 adopts a cylinder and the piston rod of the cylinder retracts, the head of the hose is released. After the unqualified hose is placed in the waste bin 410, the translation assembly 520 drives the lifting assembly 530 to move along the second direction toward the tube outlet conveyor belt 400. When it reaches above the tube outlet conveyor belt 400, the push structure 322 corresponding to the remaining qualified hose retracts, releasing the hose onto the tube outlet conveyor belt 400, and the tube outlet conveyor belt 400 conveys the qualified hose to the next process for the next step of processing.

[0094] Among them, the lifting component 530 is not limited to the above embodiment, and a linear moving structure such as a cylinder can also be used, which is installed on the support plate 531, and the piston rod passes downward through the support plate 531 to connect to the mounting frame 310, and the mounting frame 310 is driven to rise and fall by the extension and retraction of the piston rod.

[0095] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A hose leak detector, It is characterized in that include: A frame having a first working position and a second working position; A conveying mechanism, arranged on the frame; Two pipe trough assemblies are provided, and the pipe trough assemblies are used to carry the hose. The conveying mechanism drives the two pipe trough assemblies to cyclically reciprocate between the first working position and the second working position, so that while one pipe trough assembly loads the hose from the first working position, the other pipe trough assembly carrying the hose is leak-detected at the second working position; and A detection mechanism is arranged on the frame, and is used for detecting leaks of the hose at the second working position.

2. The hose leak detector according to claim 1, It is characterized in that The conveying mechanism also includes a mounting seat, a first synchronous belt and a second synchronous belt. The mounting seat is arranged on the frame, the first synchronous belt and the second synchronous belt are both arranged on the mounting seat, and the two pipe trough assemblies are respectively arranged on the first synchronous belt and the second synchronous belt to realize the cyclic movement of the two pipe trough assemblies from the first working position and the second working position.

3. The hose leak detector according to claim 2, It is characterized in that The conveying mechanism comprises: A first driving shaft, rotatably disposed on one end of the mounting seat; A second driving shaft, rotatably disposed at the other end of the mounting seat; Two first pulley assemblies are provided, wherein one of the first pulley assemblies is drivingly connected to the first drive shaft, and the other first pulley assembly is rotationally connected to the second drive shaft, and the two first pulley assemblies drive the first synchronous belt to rotate; and Two second pulley assemblies are provided, wherein one of the second pulley assemblies is rotationally connected to the first drive shaft, and the other second pulley assembly is drivingly connected to the second drive shaft, and the two second pulley assemblies drive the second synchronous belt to rotate; Wherein, the first synchronous belt is drivingly connected to the first pulley assembly, and the second synchronous belt is drivingly connected to the second pulley assembly.

4. The hose leak detector according to any one of claims 1 to 3, It is characterized in that The tube groove assembly comprises a plurality of support seats arranged at intervals along a first direction, each of the support seats is provided with a support groove, and the support groove is used to place the hose; Wherein, the extending direction of the supporting groove is a second direction, and the first direction is different from the second direction.

5. The hose leak detector according to claim 4, It is characterized in that The detection mechanism includes: A mounting frame, disposed at the second working position; A plurality of leak detection assemblies are provided, and the plurality of leak detection assemblies are spaced apart on the mounting frame along the first direction, and each leak detection assembly corresponds to a support groove of the second working position, so as to perform leak detection on the plurality of hoses on the pipe groove assembly of the second working position.

6. The hose leak detector according to claim 5, It is characterized in that The leak detection assembly comprises: A sealing part, the sealing part is installed on one side of the mounting frame, and the sealing part is provided with a vent hole along the second direction; a pushing structure, the pushing structure being disposed on the other side of the mounting frame, the pushing structure pushing the hose in the supporting groove along the second direction so that the tail of the hose abuts against the sealing portion; A ventilation structure connected to the ventilation hole to ventilate the hose through the ventilation hole; A pressure gauge is connected to the ventilation structure and the sealing part to detect pressure changes.

7. The hose leak detector according to claim 6, It is characterized in that The detection mechanism further includes a driving component, which is disposed on the mounting frame and drives the sealing portion and the pushing structure to connect so that the sealing portion and the pushing structure are moved closer to each other or farther away from each other in the second direction.

8. The hose leak detector according to claim 7, It is characterized in that The hose leak detector also includes a waste box and a tube conveyor belt, which are located on both sides of the second working position. The waste box is used to accommodate the hoses that fail the inspection, and the tube conveyor belt is used to convey the hoses that pass the inspection.

9. The hose leak detector according to claim 8, It is characterized in that The hose leak detector further comprises a transport mechanism, which is used to transport the qualified hose detected at the second working position to the pipe outlet conveyor belt, and to transport the unqualified hose to the waste box.

10. The hose leak detector according to claim 9, It is characterized in that The transport mechanism comprises: A support frame, arranged at the second working position; A translation assembly, arranged on the support frame; A lifting component is arranged on the translation component and is connected to the detection mechanism. The translation component drives the lifting component to move along the second direction to approach the pipe outlet conveyor belt or the waste box. The lifting component drives the mounting frame to rise and fall in the vertical direction so that the leak detection component approaches or moves away from the pipe groove component in the second working position.

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