Small epoxy resin gluing device for LNG (Liquefied Natural Gas) ship

Abstract

The invention discloses a small epoxy resin gluing device for an LNG (liquefied natural gas) ship, and relates to the technical field of LNG ship construction, the small epoxy resin gluing device comprises a glue injection mechanism and further comprises a bin, a glue inlet, a pressure injection port and a glue outlet are formed in the bin, the pressure injection port is opposite to the glue outlet, at least one quantitative cylinder is arranged on the bin, and the quantitative cylinder is arranged on the bin. And when the quantitative cylinder moves to be communicated with the glue inlet, glue injection is carried out, and when the quantitative cylinder moves to be communicated with the pressure injection port and the glue outlet, glue coating is carried out. According to the small epoxy resin gluing device for the LNG ship, glue is injected into the quantitative cylinder firstly, then the quantitative cylinder is moved to the position of the pressure injection opening, at the moment, the pressure injection opening and the glue outlet communicate with the quantitative cylinder, and stable pressurization is conducted on the pressure injection opening, so that the glue in the quantitative cylinder evenly flows out; compared with a mode of directly pumping the glue, the quantitative cylinder is adopted, so that the glue required by a single adhesive tape can be pumped out at one time, and the glue amount of the adhesive tapes on each insulation box is ensured to be consistent.

Description

Technical Field

[0001] The invention relates to the technical field of LNG ship construction, in particular to a small epoxy resin coating device for LNG ships. Background Art

[0002] In the construction process of LNG (liquefied natural gas) ships, the gluing of insulation boxes is a crucial process, which is directly related to the safety, efficiency and service life of the ship;

[0003] In order to ensure the best insulation effect and long-term reliability, the gluing process must be very precise, including the selection of glue type, ratio control, application thickness, etc., which all need to strictly follow technical specifications.

[0004] The automatic gluing robot can accurately perform gluing operations according to the preset path. It is suitable for complex shapes and large-area insulation box surfaces. It uses equipment such as plunger pumps to continuously supply epoxy resin glue, which greatly improves the gluing efficiency, including:

[0005] (1) The flow rate of glue directly pumped by pump equipment is not stable enough, resulting in uneven glue coating quality;

[0006] (2) When handling high-viscosity glue, the pressure required for pumping is relatively high, and air may be introduced during the pumping process, causing bubbles in the glue and affecting the final effect.

[0007] In order to solve the above problems, we propose a small epoxy resin coating device for LNG ships. Summary of the invention

[0008] [Technical issues solved]

[0009] In view of the shortcomings of the prior art, the present invention provides a small-scale epoxy resin coating device for LNG ships, which has the advantages of quantitative and one-time pressure-stabilized coating, and can effectively solve the problems in the background technology.

[0010]

Technical solution

[0011] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a small-scale epoxy resin coating device for LNG ships, including a glue injection mechanism and a warehouse, on which a glue inlet, a pressure injection port and a glue outlet are opened, the pressure injection port is opposite to the glue outlet, and at least one quantitative cylinder is arranged on the warehouse, and the structural size of the quantitative cylinder corresponds to the gap between the pressure injection port and the glue outlet, the warehouse is connected to the glue injection mechanism through the glue inlet, and the pressure injection port is connected to the pressure source, and when the quantitative cylinder moves to be connected to the glue inlet, glue is injected, and when the quantitative cylinder moves to be connected to the pressure injection port and the glue outlet, glue is coated.

[0012] Preferably, the glue injection mechanism includes any pump known to those skilled in the art for providing a power source for the flow of glue and a glue container, and the glue outlet of the pump is fixedly connected to the glue inlet on the bin and communicated therewith.

[0013] Preferably, the pressure source is any pressure source known to those skilled in the art, such as a gas pressure source or a mechanical pressure source, which can provide power for the flow of glue. For example, an air pump is installed at the pressure inlet to allow the glue to flow out by pumping in air pressure.

[0014] Preferably, at least one of the metering cylinders can move in a ring shape based on the warehouse, and the glue inlet, pressure injection port and glue outlet correspond to the moving stroke of the metering cylinder based on the warehouse ring array. When at least two metering cylinders are provided, at least two metering cylinders are based on the warehouse ring array, and the circumferential spacing between the metering cylinders based on their ring array paths corresponds to the circumferential spacing between the glue inlet and pressure injection port based on their ring array paths.

[0015] Preferably, the columnar structure of the bin and the quantitative tube is provided with a sealing groove at the junction to be joined or at the junction of the bin and the two ends of the quantitative tube, and sealing rings are provided at both ends of the quantitative tube to cooperate with the sealing groove to prevent glue leakage.

[0016] Preferably, both ends of the metering cylinder are seamlessly fitted with the bin to ensure that the glue of the metering cylinder will not leak out during the movement of the metering cylinder.

[0017] Preferably, the pressure injection port is directly connected to the metering cylinder, and the inner diameter structural dimensions thereof are the same.

[0018] Preferably, the glue coating device comprises a driving mechanism, which comprises a piston having a structural size comparable to that of the metering cylinder, and the piston serves as the pressure source.

[0019] Preferably, the inner cavity of the pressure nozzle and the inner cavity of the metering cylinder are both cylindrical structures, and the existence of internal grooves should be avoided to the greatest extent to ensure the smooth flow of the glue.

[0020] Preferably, the structure of the piston matches that of the metering cylinder, and the piston is externally connected to the end of the telescopic section of the telescopic member through a connecting member.

[0021] Preferably, the telescopic member is any telescopic member known to those skilled in the art, such as a pneumatic cylinder, an oil cylinder or an electric push rod, which can apply an axial driving force.

[0022] Preferably, at least one of the quantitative cylinders is fixedly connected to a rod, and the rod is located on the axis of the annular array of at least one of the quantitative cylinders, and a screw is provided on one end of the rod away from the quantitative cylinder.

[0023] Preferably, the driving mechanism further comprises a screw seat fixedly connected to the piston, and the screw seat moves synchronously with the piston.

[0024] Preferably, the screw rod is a rod member provided with threads, and can be a conventional screw rod or a lead screw.

[0025] Preferably, the piston is fixedly connected to the screw seat via a connecting piece.

[0026] Preferably, when only one metering cylinder is provided, the rod is non-rotatably connected to the screw.

[0027] Preferably, when at least two metering cylinders are provided, a ratchet assembly is provided between the screw and the rod, and the rod and the screw are connected in a one-way rotation based on the ratchet assembly.

[0028] Preferably, when the ratchet on the ratchet assembly is fixedly connected to a rod or a screw, the pawl on the ratchet assembly is correspondingly hinged to the screw or the rod through a spring.

[0029] Preferably, the screw rod is provided with a key slot, and the screw rod is also provided with a key slot, and a key shaft can be inserted between the rod and the screw rod based on the key slot provided thereon, and the rod and the screw rod are non-rotatably connected when the key shaft is plugged in, and the rod and the screw rod are unidirectionally rotatably connected based on the ratchet group when the key shaft is not plugged in.

[0030] Preferably, in order to ensure that the key shaft can be inserted at multiple angles, the key slot and the keys on the key shaft are splines.

[0031] Preferably, a gear 1 is fixedly connected to the screw rod, and a gear 2 is matched and meshed with the gear 1.

[0032] Preferably, the glue injection mechanism includes a valve for controlling the glue injection, and the valve stem of the valve is fixedly connected to the second gear.

[0033] Preferably, the valve is a mechanical valve with a valve stem, and the valve is fixedly connected to the outside, which may be on a bin or on a hard pipe, and is used to support the same axial height as gear one.

[0034] Preferably, a variable displacement block is disposed inside the metering cylinder, and a through groove is provided on the variable displacement block to allow the glue to flow.

[0035] Preferably, the variable block is designed in size according to actual implementation requirements, mainly restricted by its axial length. When the variable block is placed in the metering cylinder, it means that the capacity in the metering cylinder becomes smaller, so as to cope with implementation scenarios of different glue coating amounts.

[0036]

Beneficial Effects

[0037] Compared with the prior art, the present invention provides a small epoxy resin coating device for LNG ships, which has the following beneficial effects:

[0038] The small epoxy resin gluing device for LNG ships injects glue into a metering cylinder first, and then moves the metering cylinder to the position of a pressure injection port. At this time, the pressure injection port, the glue outlet and the metering cylinder are connected, and the pressure injection port is stably pressurized to make the glue in the metering cylinder flow out evenly. Compared with the method of directly pumping the glue, the use of the metering cylinder can pump out the glue required for a single rubber strip at one time, ensuring that the glue amount of the rubber strip on each insulation box is consistent and the molding is more uniform. In addition, the use of the metering cylinder can make the amount of glue injected each time more accurately controllable.

[0039] In addition, by steadily pressurizing the pressure nozzle without being limited to the pressurization method, the glue can flow out at a more uniform rate, avoiding the problem of uneven flow caused by pressure fluctuations that may occur during direct pumping. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The present invention is a schematic diagram of the overall structure of a small epoxy resin coating device for LNG ships.

[0041] Figure 2 The present invention is a schematic structural diagram of a quantitative mechanism in a small epoxy resin coating device for LNG ships.

[0042] Figure 3 The present invention is a schematic structural diagram of a middle compartment of a small epoxy resin coating device for an LNG ship.

[0043] Figure 4 The present invention is a schematic structural diagram of a driving mechanism in a small epoxy resin coating device for LNG ships.

[0044] Figure 5 The present invention is a schematic diagram of the partial structural assembly of a small epoxy resin coating device for LNG ships.

[0045] Figure 6 The present invention is a schematic structural diagram of a screw and a rod in a small epoxy resin coating device for an LNG ship.

[0046] Figure 7 This is a structural analysis diagram of a screw and a rod as a preferred embodiment of a small epoxy resin coating device for LNG ships of the present invention.

[0047] Figure 8 The structure diagram of the quantitative mechanism in a small epoxy resin coating device for LNG ships of the present invention as a preferred embodiment Figure 1 .

[0048] Fig. 9 The structure diagram of the quantitative mechanism in a small epoxy resin coating device for LNG ships of the present invention as a preferred embodiment Figure 2 .

[0049] In the figure:

[0050] 1. Warehouse; 2. Quantitative mechanism; 3. Driving mechanism;

[0051] 11. Glue inlet; 12. Pressure injection port; 13. Glue outlet; 14. Limit rod; 15. Sealing groove;

[0052] 21. Dosing cylinder; 22. Rod; 23. Screw; 24. Gear 1; 25. Gear 2; 26. Valve; 27. Variable block;

[0053] 211, sealing ring;

[0054] 221, ratchet set;

[0055] 231, keyway; 232, key shaft;

[0056] 261, tube;

[0057] 271, through slot;

[0058] 31. Screw seat; 32. Connecting piece; 33. Piston; 34. Telescopic piece. DETAILED DESCRIPTION

[0059] In order to make the technical means, creative features, objectives and functional effects of the present invention easy to understand, the present invention will be further described below in conjunction with the drawings 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.

[0060] [Example 1]

[0061] In order to address the shortcomings of the existing technology, such as Figure 1 As shown, the present invention provides a small epoxy resin coating device for LNG ships, including a glue injection mechanism and a bin 1, on which at least one metering cylinder 21 is arranged.

[0062] It should be noted that, by injecting glue into the interior of at least one metering cylinder 21, within one operation cycle of the glue coating device: by changing the position of at least one metering cylinder 21, the metering cylinder 21 is moved to the glue injection position for glue injection before glue coating, and after the glue injection is completed, the metering cylinder 21 with glue injected inside is moved to the glue outlet position, and then pressure is applied to the inside of the metering cylinder 21, so that the glue inside the metering cylinder 21 flows evenly onto the insulating box to achieve glue coating.

[0063] Among them, it can be understood by those skilled in the art that, in view of the actual implementation requirements, in view of the different curing temperatures of different glue materials, in order to enable the glue to flow smoothly, a temperature-changing mechanism such as a thermostat can be provided on the bin 1 or the metering cylinder 21;

[0064] Furthermore, the gluing device is not limited to being installed on an XYZ axis robot for use, but can also be handheld or any other well-known operation method or implementation requirement that can be understood by technicians in this field. For example, it can be scaled down to facilitate handheld operation.

[0065] Specifically, Figures 2 to 4 As shown, a bin 1 and a metering mechanism 2 for a small epoxy resin coating device for LNG ships are provided, a glue inlet 11, a pressure injection port 12 and a glue outlet 13 are provided on the bin 1, the pressure injection port 12 is opposite to the glue outlet 13, the structural size of the metering cylinder 21 corresponds to the gap between the pressure injection port 12 and the glue outlet 13, the bin 1 is connected to the glue injection mechanism through the glue inlet 11, and the pressure injection port 12 is connected to the pressure source, when the metering cylinder 21 moves to be connected to the glue inlet 11, glue injection is performed, and when the metering cylinder 21 moves to be connected to the pressure injection port 12 and the glue outlet 13, glue coating is performed.

[0066] The glue injection mechanism includes any pump and glue container known to those skilled in the art for providing a power source for the flow of glue, and the glue outlet of the pump is fixedly connected to the glue inlet 11 on the bin 1 and communicated therewith;

[0067] The pressure source is any pressure source known to those skilled in the art, such as a gas pressure source or a mechanical pressure source, which can provide power for the flow of glue. For example, an air pump is installed at the pressure injection port 12 to allow the glue to flow out by pumping in air pressure.

[0068] It should be noted that the present invention is a small epoxy resin gluing device for LNG ships. Through the provided bin 1 and the metering mechanism 2, in the process of gluing the insulating box for LNG ships, the position of the metering cylinder 21 is based on being connected to the glue inlet 11 on the bin 1. In this state, the inside of the metering cylinder 21 can be injected with glue through the glue inlet 11. After the glue inside the metering cylinder 21 is injected, the position of the metering cylinder 21 is moved to be connected to the pressure injection port 12 through the driving mechanism 3, and then pressure is applied to the inside of the metering cylinder 21 through the pressure injection port 12. After being pressurized, the colloid inside the metering cylinder 21 flows out through the glue outlet 13 to the insulating box to achieve gluing.

[0069] It is worth mentioning that, by first injecting glue into the inside of the metering cylinder 21, and then moving the metering cylinder 21 to the position of the pressure nozzle 12, at this time the pressure nozzle 12, the glue outlet 13 and the metering cylinder 21 are connected, and the pressure nozzle 12 is stably pressurized so that the glue in the metering cylinder 21 flows out evenly. Compared with the method of directly pumping the glue, the use of the metering cylinder 21 can make the glue required for a single rubber strip pumped out at one time, ensuring that the glue amount of the rubber strip on each insulation box is consistent, and the molding is more uniform. In addition, the use of the metering cylinder 21 can make the amount of glue injected each time more accurately controllable;

[0070] In addition, by steadily pressurizing the pressure nozzle 12 without being limited to a pressurization method, the glue can flow out at a more uniform speed, avoiding the problem of uneven flow caused by pressure fluctuations that may occur during direct pumping.

[0071] As a preferred embodiment, in order to improve the gluing efficiency, a quantitative mechanism 2 for a small epoxy resin gluing device for LNG ships is provided, wherein at least one quantitative cylinder 21 can move in a ring shape based on the bin 1, and the glue inlet 11, the pressure injection port 12, and the glue outlet 13 correspond to the moving stroke of the quantitative cylinder 21 based on the annular array of the bin 1. When at least two quantitative cylinders 21 are provided, at least two quantitative cylinders 21 are based on the annular array of the bin 1, and the circumferential spacing between the quantitative cylinders 21 and the quantitative cylinders 21 based on their annular array paths corresponds to the circumferential spacing between the glue inlet 11 and the pressure injection port 12 based on their annular array paths.

[0072] It should be noted that the present invention is a small-scale epoxy resin coating device for LNG ships. Through the quantitative mechanism 2, taking two quantitative cylinders 21 as an example, the positions of the glue inlet 11, the pressure injection port 12 and the glue outlet 13 on the warehouse 1 are distributed left and right based on the center of the circular array of the two quantitative cylinders 21, that is, the two quantitative cylinders 21 can be interchanged with each other after rotating based on the center of their circular arrays, and by analogy, the number of quantitative cylinders 21 can be selectively set up at least one or more according to actual implementation needs.

[0073] As a preferred embodiment, the bin 1 and the quantitative cylinder 21 are of a columnar structure, and a sealing groove 15 is provided at the junction to be joined or at the junction of the bin 1 and the two ends of the quantitative cylinder 21, and a sealing ring 211 is provided at both ends of the quantitative cylinder 21, so that the sealing ring 211 cooperates with the sealing groove 15 to prevent the glue from leaking out;

[0074] Both ends of the metering cylinder 21 are seamlessly fitted with the bin 1 to ensure that the glue of the metering cylinder 21 will not leak out during the movement of the metering cylinder 21 .

[0075] As a preferred embodiment, a variable block 27 is disposed inside the metering cylinder 21, and a through groove 271 is provided on the variable block 27 to allow the glue to flow;

[0076] The variable block 27 is designed in size according to actual implementation requirements and is mainly restricted by its axial length. When the variable block 27 is placed in the metering cylinder 21, it means that the capacity in the metering cylinder 21 becomes smaller, so as to cope with implementation scenarios of different glue coating amounts.

[0077] [Example 2]

[0078] In order to make the glue coating device more automated, based on the above-mentioned embodiment 1, this embodiment is proposed:

[0079] Specific, and Figures 2 to 4 As shown, a quantitative mechanism 2 and a driving mechanism 3 for a small epoxy resin coating device for LNG ships, a pressure injection port 12 and a quantitative cylinder 21 are directly connected, and their inner diameters are the same; the coating device includes a driving mechanism 3, and the driving mechanism 3 includes a piston 33 with a structural size equivalent to that of the quantitative cylinder 21, and the piston 33 serves as a pressure source;

[0080] A rod 22 is fixedly connected to at least one measuring cylinder 21, and the rod 22 is located on the axis of the annular array of at least one measuring cylinder 21, and a screw 23 is provided on the end of the rod 22 away from the measuring cylinder 21; the driving mechanism 3 also includes a screw seat 31 fixedly connected to the piston 33, and the screw seat 31 moves synchronously with the piston 33.

[0081] The inner cavity of the pressure nozzle 12 and the inner cavity of the metering cylinder 21 are both cylindrical structures, and the existence of internal grooves should be avoided to the greatest extent to ensure the smooth flow of the glue;

[0082] The piston 33 matches the structure of the metering cylinder 21, and the piston 33 is externally connected to the end of the telescopic section of the telescopic member 34 through the connecting member 32;

[0083] The telescopic member 34 is any telescopic member known to those skilled in the art, such as an air cylinder, an oil cylinder or an electric push rod, which can apply an axial driving force;

[0084] The screw 23 is a rod with threads, which can be a conventional screw or a lead screw;

[0085] The piston 33 is fixedly connected to the screw seat 31 via a connecting piece 32 .

[0086] It should be noted that the present invention is a small epoxy resin gluing device for LNG ships. Through the quantitative mechanism 2 and the driving mechanism 3, in the process of gluing the insulation box for LNG ships, taking only one quantitative cylinder 21 as an example, it is necessary to first inject glue into the inside of the quantitative cylinder 21, so that the quantitative cylinder 21 is moved to the position of the glue inlet 11 to achieve glue injection, and the piston 33 or the screw seat 31 is moved toward the screw 23 so that the piston 33 is completely separated from the inside of the quantitative cylinder 21;

[0087] When the piston 33 is separated from the metering cylinder 21, the piston 33 or the screw seat 31 is continuously moved toward the screw rod 23, which drives the screw seat 31 to exert force on the screw rod 23. In the process of continuously moving the piston 33 or the screw seat 31, the screw seat 31 drives the metering cylinder 21 to change its position through the screw rod 23 until the metering cylinder 21 moves to communicate with the glue inlet 11, at which time the screw seat 31 or the piston 33 is stopped from being moved to inject glue;

[0088] After the glue is injected into the interior of the metering cylinder 21, the screw seat 31 or the piston 33 is moved in the reverse direction so that the screw seat 31 acts in the reverse direction on the screw rod 23. The screw rod 23 drives the metering cylinder 21 to reset and move to the position of the pressure injection port 12 until the screw seat 31 is separated from the screw rod 23. As an ideal operating state, the pressure injection port 12 should be connected to and facing the metering cylinder 21. At this time, the screw seat 31 or the piston 33 is continuously moved downward so that the piston 33 enters the interior of the metering cylinder 21 and applies pressure to the interior of the metering cylinder 21, so that the glue inside the metering cylinder 21 flows out evenly through the glue outlet 13 to achieve gluing.

[0089] It is worth mentioning that the piston 33 and the screw seat 31 are driven to move synchronously by the telescopic member 34. When the telescopic member 34 drives the piston 33 to completely disengage from the metering cylinder 21, the piston 33 or the screw seat 31 is continuously moved, and the screw seat 31 will exert force on the screw rod 23, and the metering cylinder 21 is driven to move by the screw rod 23, so that the metering cylinder 21 moves from the glue inlet 11 to the point where it is connected to the pressure injection port 12 for glue injection. After the glue inside the metering cylinder 21 is injected, the screw seat 31 is moved in the reverse direction, and the screw seat 31 will also exert force on the screw rod 23 to reverse the screw rod 23, so as to drive the metering cylinder 21 to move in the reverse direction and reset to the point where it is connected to the pressure injection port 12 for glue pumping out to achieve glue coating.

[0090] The use of a screw drive system can achieve highly accurate control of the position of the metering cylinder 21, ensuring that the metering cylinder can accurately reach the specified position in each gluing operation, thereby improving the consistency and accuracy of gluing. Since the screw drive has good repeat positioning accuracy, it ensures that the gluing effect can be maintained consistently even in multiple cycle operations;

[0091] On the other hand, by minimizing the driving source, lowering the operating threshold, reducing the need for manual intervention, improving work efficiency and reducing the risk of human error.

[0092] [Example 3]

[0093] In order to further improve the gluing efficiency of the gluing device, based on the above-mentioned embodiment 2, this embodiment is proposed:

[0094] Specifically, Figure 5 , 6 As shown, a quantitative mechanism 2 for a small epoxy resin coating device for an LNG ship, when only one quantitative cylinder 21 is provided, the rod 22 and the screw 23 are non-rotatably connected;

[0095] When at least two metering cylinders 21 are provided, a ratchet set 221 is provided between the screw 23 and the rod 22 , and the rod 22 and the screw 23 are connected in a one-way rotation based on the ratchet set 221 .

[0096] When the ratchet on the ratchet assembly 221 is fixedly connected to the rod 22 or the screw rod 23 , the pawl on the ratchet assembly 221 is correspondingly hinged to the screw rod 23 or the rod 22 through a spring.

[0097] It should be noted that the present invention is a small epoxy resin gluing device for LNG ships, and continuous gluing can be achieved by setting a quantitative mechanism 2. In this embodiment, at least two quantitative cylinders 21 are provided.

[0098] The operation process of the quantitative mechanism 2 of the above embodiment is similar to that of the above embodiment, which is to move the screw seat 31 or the piston 33 toward the screw rod 23. When the screw seat 31 is moved to engage with the screw rod 23, the screw seat 31 or the piston 33 is continuously moved so that the screw rod 23 drives at least two quantitative cylinders 21 to rotate based on the center of the annular array of at least two quantitative cylinders 21. The rotation direction at this time should be the ratchet teeth on the reverse ratchet group 221, so that the quantitative cylinder 21 moves to the position of the glue inlet 11 and then performs glue injection. At this time, the screw seat 31 or the piston 33 is stopped from moving further.

[0099] After the glue injection into the metering cylinder 21 is completed, it is necessary to move the screw seat 31 or the piston 33 in the reverse direction. In the process of moving the screw seat 31 or the piston 33 in the reverse direction, the rotation direction at this time is the ratchet group 221 on the forward ratchet group 221. Therefore, due to factors such as the self-weight coefficient of the metering mechanism 2 or the friction coefficient between it and the bin 1, the rotation of the screw 23 will not drive the rod 22 to rotate, so that at least two metering cylinders 21 are in a unidirectional rotation state based on the rod 22. In this state, the screw seat 31 or the piston 33 is continuously moved so that the piston 33 acts on the inside of the metering cylinder 21 to realize the glue coating operation.

[0100] It is worth mentioning that by providing a ratchet group 221 between the screw 23 and the rod 22, when the screw seat 31 moves from the end of the screw 23 to its tail, the screw 23 will drive the rod 22 to rotate synchronously. At this time, the rotation direction of the screw 23 is opposite to the ratchet teeth of the ratchet group 221, thereby realizing the movement of the metering cylinder 21. When the screw seat 31 moves from the tail of the screw 23 to the end of the screw 23 for resetting, the rotation direction of the screw 23 is forward to the ratchet teeth of the ratchet group 221, and the screw 23 will not drive the rod 22 to rotate synchronously. In this state, at least two metering cylinders 21 can only move unidirectionally based on their annular array, thereby realizing the continuous glue injection requirements, which can further speed up the glue coating efficiency.

[0101] [Example 4]

[0102] In order to enhance the applicability of the glue coating device, the number of measuring cylinders 21 can be set according to the actual implementation requirements, and the position change method of the quantitative cylinder 21 should also be optional. Based on the above embodiment 3, this embodiment is proposed:

[0103] Specifically, Figure 7 As shown, a quantitative mechanism 2 for a small epoxy resin coating device for LNG ships, a screw 23 is provided with a keyway 231, and the screw 23 is also provided with a keyway 231, a key shaft 232 can be inserted between the rod 22 and the screw 23 based on the keyway 231 provided thereon, the rod 22 and the screw 23 are non-rotatably connected in the plugged state of the key shaft 232, and the rod 22 and the screw 23 are unidirectionally rotatably connected based on the ratchet group 221 in the non-plugged state of the key shaft 232.

[0104] In order to ensure that the key shaft 232 can be inserted at multiple angles, the keys on the key slot 231 and the key shaft 232 are splines.

[0105] It should be noted that the present invention is a small epoxy resin coating device for LNG ships. Through the quantitative mechanism 2, when only one quantitative cylinder 21 is needed, due to the existence of the ratchet group 221, it is necessary to insert the key shaft 232 inside the keyway 231 on the screw 23, so that the connection relationship between the screw 23 and the rod 22 is converted from a rotating connection to a non-rotatable connection. In this state, based on the operating principle of the above-mentioned embodiment 2, the reciprocating movement of the quantitative cylinder 21 can be realized.

[0106] Among them, because the screw rod 23 and the rod 22 are non-rotatably connected through the key shaft 232 based on the key slot 231 opened thereon, during the subsequent use in this state, the ratchet assembly 221 is in a non-operating state, thereby reducing unnecessary wear of the ratchet assembly 221.

[0107] When at least two metering cylinders 21 are needed, it is necessary to maintain the rotational connection between the screw 23 and the rod 22 based on the operating principle of the above-mentioned embodiment three. In this state, the positions of at least two metering cylinders 21 can be moved unidirectionally, so that continuous gluing operations can be performed, which is more suitable for implementation scenarios where a large amount of glue is required.

[0108] [Example 5]

[0109] Based on any of the above embodiments, during the process of gluing, the metering cylinder 21 needs to be frequently moved to switch the conduction state between the metering cylinder 21 and the glue inlet 11 and the pressure injection port 12. During this process, when the metering cylinder 21 is separated from the glue inlet 11 or the pressure injection port 12, that is, during the movement of the metering cylinder 21, in order to prevent the continuous pumping of glue from causing glue leakage, the glue pumping should be stopped. This embodiment is proposed:

[0110] Specifically, Figure 8 , 9 As shown, a quantitative mechanism 2 for a small epoxy resin coating device for an LNG ship, a gear 1 24 is fixedly connected to a screw rod 23, and a gear 2 25 is matched with the gear 1 24 and meshed with the gear 1 24;

[0111] The glue injection mechanism includes a valve 26 for controlling the glue injection, and the valve stem of the valve 26 is fixedly connected to the gear 2 25 .

[0112] Among them, the valve 26 is a mechanical valve with a valve stem. The valve 26 is fixedly connected to the outside, which can be on the bin 1 or on a hard pipe, and is used to support the same axial height as the gear 1 24.

[0113] It should be noted that the present invention is a small epoxy resin gluing device for LNG ships. Through the quantitative mechanism 2, during the gluing process, when the screw seat 31 or the piston 33 is moved until the piston 33 is completely separated from the quantitative cylinder 21, the screw seat 31 or the piston 33 is continuously moved, so that the screw seat 31 acts on the screw rod 23, and the screw rod 23 then rotates through the gear 1 24 to drive the gear 2 25 to rotate synchronously, and the rotation of the gear 2 25 realizes the control of the conduction state of the valve 26.

[0114] When only one metering cylinder 21 is used, since the metering cylinder 21 is in a reciprocating state, in this state, the travel of the screw seat 31 from the end of the screw 23 to the end thereof corresponds to a complete opening or closing process of the valve 26;

[0115] When at least two metering cylinders 21 are needed, the screw 23 and the rod 22 are rotationally connected based on the ratchet group 221. During the return stroke of the screw seat 31, the force applied by the screw seat 31 will not drive the rod 22 to rotate, because the metering cylinder 21 is in an intermittent continuous movement state. In this state, the stroke of the screw seat 31 moving from the end of the screw 23 to the middle thereof corresponds to a complete opening or closing process of the valve 26, and then during the continuous movement of the screw seat 31, the stroke of the screw seat 31 moving from the middle of the screw 23 to the end thereof corresponds to a complete closing or opening process of the valve 26.

[0116] Among them, in this embodiment, because the opening and closing of the valve 26 is realized by the transmission of the gear, it can be understood by those skilled in the art that, as an ideal operating state, subject to the factor that the natural flow speed of the glue is slow, the metering cylinder 21 can be moved when the valve 26 is not completely opened or closed;

[0117] In order to ensure that glue does not leak out during the injection process, the opening position of the glue inlet 11 should be as close to the metering cylinder 21 as possible, so that when the valve 26 begins to open, the metering cylinder 21 can be connected to the glue inlet 11, or before the valve 26 is completely closed, the metering cylinder 21 is not completely disconnected from the connection with the glue inlet 11.

[0118] It is worth mentioning that by installing gears on the screw 23, during the rotation of the screw 23, the opening and closing of the valve 26 is realized through gear transmission, so as to control the injection operation of the glue injection mechanism. Similar to the above-mentioned embodiment 2, because only one driving source is used, under the premise of ensuring that the glue coating device is sufficiently automated, the overall installation cost and operation cost of the device are lower, the operation threshold is lower, and the operation effect is more intuitive.

[0119] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for illustrating the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed for protection.

Claims

1. A small epoxy resin coating device for LNG ships, including a glue injection mechanism, characterized in that: The invention also comprises a bin (1), on which a glue inlet (11), a pressure injection port (12) and a glue outlet (13) are provided, the pressure injection port (12) and the glue outlet (13) being opposite to each other, and at least one quantitative cylinder (21) is provided on the bin (1), the structural dimensions of the quantitative cylinder (21) corresponding to the gap between the pressure injection port (12) and the glue outlet (13), the bin (1) is connected to an external glue injection mechanism via the glue inlet (11), and the pressure injection port (12) is connected to an external pressure source, and when the quantitative cylinder (21) moves to be connected to the glue inlet (11), glue injection is performed, and when the quantitative cylinder (21) moves to be connected to the pressure injection port (12) and the glue outlet (13), glue coating is performed.

2. A small epoxy resin coating device for LNG ships according to claim 1, characterized in that: At least one of the quantitative cylinders (21) can move in a circular manner based on the bin (1), and the glue inlet (11), the pressure injection port (12), and the glue outlet (13) correspond to the movement stroke of the quantitative cylinder (21) based on the bin (1) circular array. When at least two quantitative cylinders (21) are provided, at least two quantitative cylinders (21) are based on the bin (1) circular array, and the circumferential spacing between the quantitative cylinders (21) and the quantitative cylinders (21) based on their circular array paths corresponds to the circumferential spacing between the glue inlet (11) and the pressure injection port (12) based on their circular array paths.

3. A small epoxy resin coating device for LNG ship according to claim 2, characterized in that: The pressure injection port (12) is directly connected to the metering cylinder (21), and the inner diameters and structural dimensions thereof are the same; The glue coating device comprises a driving mechanism (3), the driving mechanism (3) comprises a piston (33) having a structural size comparable to that of the metering cylinder (21), and the piston (33) serves as the pressure source.

4. A small epoxy resin coating device for LNG ship according to claim 3, characterized in that: At least one of the quantitative cylinders (21) is fixedly connected to a rod (22), and the rod (22) is located on the axis of the annular array of at least one of the quantitative cylinders (21), and a screw (23) is provided on one end of the rod (22) away from the quantitative cylinder (21); The driving mechanism (3) further comprises a screw seat (31) fixedly connected to the piston (33), and the screw seat (31) moves synchronously with the piston (33).

5. A small epoxy resin coating device for LNG ship according to claim 4, characterized in that: When only one metering cylinder (21) is provided, the rod (22) and the screw rod (23) are non-rotatably connected; When at least two metering cylinders (21) are provided, a ratchet group (221) is provided between the screw rod (23) and the rod (22), and the rod (22) and the screw rod (23) are connected in a one-way rotation based on the ratchet group (221).

6. A small epoxy resin coating device for LNG ships according to claim 5, characterized in that: The screw rod (23) is provided with a key groove (231), and the screw rod (23) is also provided with a key groove (231). A key shaft (232) can be plugged between the rod (22) and the screw rod (23) based on the key groove (231) provided thereon. The rod (22) and the screw rod (23) are in a non-rotatable connection when the key shaft (232) is plugged in. When the key shaft (232) is not plugged in, the rod (22) and the screw rod (23) are in a one-way rotational connection based on the ratchet assembly (221).

7. A small epoxy resin coating device for LNG ship according to claim 4, characterized in that: A gear 1 (24) is fixedly connected to the screw rod (23), and a gear 2 (25) is matched and meshed with the gear 1 (24); The glue injection mechanism comprises a valve (26) for controlling the glue injection, and the valve stem of the valve (26) is fixedly connected to the second gear (25).

8. The small epoxy resin coating device for LNG ship according to claim 1, characterized in that: A variable displacement block (27) is disposed inside the metering cylinder (21), and a through groove (271) is provided on the variable displacement block (27) for allowing glue to flow.

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