Automatic glue injection mechanism for thermal insulation pipe

Abstract

The utility model belongs to the technical field of thermal insulation pipes, and particularly relates to a thermal insulation pipe automatic glue injection mechanism which comprises a thermal insulation pipe foaming device, a movable frame is arranged around the thermal insulation pipe foaming device, and a glue gun adjusting mechanism is arranged at the upper end of the movable frame. The glue gun adjusting mechanism comprises a connecting plate, an air cylinder, a key shaft, a driving motor, a glue gun, a bearing seat, a long shaft sleeve, a driving wheel and a driven wheel, the bearing seat is installed on the connecting plate, the long shaft sleeve is installed in the bearing seat and matched with the bearing seat, the key shaft is inserted into the long shaft sleeve and matched with the strip-shaped groove, and the driving wheel is driven by the driving motor. A piston rod of the air cylinder is connected with the fixed end of the key shaft through a connecting block, and the lower end of the key shaft is connected with the glue gun. According to the device, a worker only needs to move the movable frame to a set position, and the glue gun can automatically descend to enter the glue injection hole above the thermal insulation pipe for glue injection, so that the labor intensity of the worker is reduced, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal insulation pipes, and in particular relates to an automatic glue injection mechanism for a thermal insulation pipe. Background Art

[0002] Prefabricated direct buried insulated pipes are mainly used for regional heating external network pipelines. With the promotion of centralized heating by the country, their usage is increasing and their scope of use is becoming wider and wider. Prefabricated direct buried insulated pipes have many advantages such as waterproof, good anti-corrosion performance, saving investment, shortening construction period, and low maintenance cost. The prefabricated direct buried pipes currently used are composed of steel pipes, brackets, insulation layers, and outer protective pipes. According to the design and customer requirements, seamless pipe spiral welding and straight seam pipes are generally selected. In the process of insulated pipe processing, an important link is the manufacture of the insulation layer. A considerable part of the existing pipe insulation layer is made of polyurethane material. The manufacture of this part requires the implementation of polyurethane foaming operation between the pipe and the outer protective pipe. For large insulated pipes, it is necessary to open a hole above the outer protective pipe, and then use a glue injection machine to inject polyurethane into the inside. In the existing technology, since the diameter of large insulated pipes is generally more than two meters, workers are required to climb to the top of the insulation pipe with a glue gun through a ladder and operate manually. This method leads to high labor intensity and high risk factor for workers. Utility Model Content

[0003] The utility model aims to provide an automatic glue injection mechanism for a thermal insulation pipe to solve the problems existing in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic glue injection mechanism for an insulation pipe, comprising an insulation pipe foaming device, a mobile frame is provided around the insulation pipe foaming device, a glue gun adjustment mechanism is provided at the upper end of the mobile frame, the glue gun adjustment mechanism comprises a connecting plate, a cylinder, a key shaft, a driving motor, a glue gun, a bearing seat, a long shaft sleeve, a driving wheel and a driven wheel, the bearing seat is mounted on the connecting plate, the long shaft sleeve is mounted inside the bearing seat and cooperates therewith, the inner side of the long shaft sleeve has a strip groove, the key shaft is inserted into the inside of the long shaft sleeve and cooperates with the strip groove, the driven wheel is fixed to the upper end of the long shaft, the driven wheel is connected to the driving wheel through a belt, the driving wheel is mounted on the output end of the driving motor, the driving motor is fixed on the connecting plate, the cylinder is fixed on the connecting plate through a cylinder bracket, the piston rod of the cylinder is connected to the fixed end of the key shaft through a connecting block, and the lower end of the key shaft is connected to the glue gun.

[0005] Preferably, universal wheels are provided at the bottom of the movable frame.

[0006] Preferably, the glue gun is fixed to the lower end of the key shaft through a clamping block.

[0007] Preferably, the movable frame is a square structure, and the insulation pipe passes through the interior of the movable frame.

[0008] Preferably, the top of the movable frame is provided with a mounting platform, and the connecting plate is fixed on the mounting platform.

[0009] Preferably, the movable frame has handles on both sides.

[0010] The beneficial effects of the utility model are as follows: the device changes the existing structure, and workers no longer need to climb up on the top of the insulation pipe to manually inject glue. Through the device, workers only need to move the mobile frame to the set position, and the glue gun will automatically descend into the glue injection hole above the insulation pipe to inject glue, which reduces the labor intensity of workers and greatly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the utility model;

[0012] Figure 2 It is an enlarged view of the adjustment mechanism of the glue gun in the utility model. DETAILED DESCRIPTION

[0013] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0014] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0015] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0016] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings and preferred embodiments.

[0017] like Figure 1 As shown, the utility model discloses an automatic glue injection mechanism for an insulation pipe, comprising an insulation pipe foaming device 1, a movable frame 2 is arranged around the insulation pipe foaming device, a glue gun adjustment mechanism is arranged at the upper end of the movable frame, the glue gun adjustment mechanism comprises a connecting plate 3, a cylinder 4, a key shaft 5, a driving motor 6, a glue gun 7, a bearing seat 8, a long shaft sleeve 9, a driving wheel 10 and a driven wheel 11, the bearing seat is mounted on the connecting plate, the long shaft sleeve is mounted inside the bearing seat and cooperates therewith, the outer wall of the long shaft sleeve is rotatably matched with the bearing seat, the inner wall of the long shaft sleeve has a strip groove, the strip groove is arranged along the axial direction of the inner wall of the long shaft sleeve, the purpose is to enable the key shaft to slide up and down, the outer surface of the key shaft is provided with a protrusion cooperating with the strip groove in the axial direction, preferably in a dovetail shape, the key shaft can both rotate around the bearing seat through the long shaft sleeve and move up and down along the strip groove.

[0018] The key shaft is inserted into the interior of the long shaft sleeve and cooperates with the strip groove. Specifically, the exterior of the long shaft sleeve is in a stepped shape, so that the lower part of the long shaft sleeve can be fixed to the inner ring of the bearing seat and can rotate, and the upper part of the long shaft sleeve can be fixed to the driven wheel. The driven wheel is connected to the driving wheel by a belt, and the driving wheel is installed at the output end of the driving motor. The driving motor is fixed on the connecting plate. The driving motor drives the driven wheel to rotate through the driving wheel, and the driven wheel drives the long shaft sleeve to rotate, and the long shaft sleeve drives the key shaft to rotate. Since the lower end of the key shaft is connected to the glue gun, specifically, the glue gun is fixed to the lower end of the key shaft through the clamping block 16.

[0019] Furthermore, the cylinder is fixed to the connecting plate through a cylinder bracket, the piston rod of the cylinder is connected to the fixed end of the key shaft through a connecting block 12, and the lower end of the key shaft is connected to the glue gun. The key shaft is driven up and down by the cylinder, thereby controlling the up and down movement of the glue gun.

[0020] Furthermore, in order to facilitate the movement of the device, a universal wheel 13 is provided at the bottom of the mobile frame.

[0021] In the device, the mobile frame is a square structure, and the insulation pipe passes through the inside of the mobile frame. The square structure of the mobile frame can ensure the stability of the overall structure on the one hand, and can prevent the frame from interfering with the glue gun and affecting the movement of the glue gun on the other hand.

[0022] Furthermore, in order to facilitate the installation of the adjustment mechanism, the top of the mobile frame is provided with a mounting platform 14, and the bottom of the mounting platform is provided with a mounting hole of a size similar to that of the connecting plate. The installation is to place the connecting plate in the mounting hole and fix the connecting plate to the mounting platform by bolts.

[0023] Furthermore, in order to facilitate pushing the moving frame, handles 15 are provided on both sides of the moving frame.

[0024] During use, after the insulation pipe is placed on the foaming device and fixed, push the mobile frame to enter from the axial direction of the insulation pipe. Since the position of the injection hole on the insulation pipe is fixed, the moving distance of the mobile frame must be set in advance. When the mobile frame reaches the moving position, lock the universal wheel and start the drive motor. The drive motor drives the glue gun to rotate to the top of the injection hole. Finally, start the cylinder. The cylinder drives the glue gun to descend so that the front end of the glue gun enters the injection hole. Finally, start the glue injection pump to start injecting polyurethane foam into the insulation pipe. In this device, since the position of the injection hole is fixed, the rotation position of the drive motor and the descending height of the cylinder are set in advance after multiple debugging. Finally, the worker only needs to press the button and the glue gun will automatically enter the injection hole. Another mode is the manual operation mode of workers. Since the injection hole is located on the upper side of the insulation pipe, the worker can see it from the lower side. According to the position of the injection hole, when the worker pushes the mobile frame above the injection hole, the worker can manually control the rotation angle of the drive motor and the up and down movement of the cylinder. By gradually trying, the glue gun can be penetrated into the injection hole. This device avoids the workers' climbing up and down steps. On the one hand, it can improve the workers' work efficiency, and on the other hand, it can ensure the workers' personal safety and effectively prevent them from falling from the upper part of the insulation pipe.

[0025] It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. An automatic glue injection mechanism for an insulation pipe, comprising an insulation pipe foaming device, characterized in that: A movable frame is provided around the thermal insulation pipe foaming device, and a glue gun adjustment mechanism is provided at the upper end of the movable frame, and the glue gun adjustment mechanism comprises a connecting plate, a cylinder, a key shaft, a driving motor, a glue gun, a bearing seat, a long shaft sleeve, a driving wheel and a driven wheel. The bearing seat is installed on the connecting plate, and the long shaft sleeve is installed in the interior of the bearing seat and cooperates with it. The inner side of the long shaft sleeve has a strip groove, the key shaft is inserted into the interior of the long shaft sleeve and cooperates with the strip groove, the driven wheel is fixed to the upper end of the long shaft, the driven wheel is connected to the driving wheel through a belt, the driving wheel is installed on the output end of the driving motor, the driving motor is fixed on the connecting plate, the cylinder is fixed on the connecting plate through a cylinder bracket, the piston rod of the cylinder is connected to the fixed end of the key shaft through a connecting block, and the lower end of the key shaft is connected to the glue gun.

2. The automatic glue injection mechanism for thermal insulation pipe according to claim 1 is characterized in that: The bottom of the mobile frame is provided with universal wheels.

3. The automatic glue injection mechanism for thermal insulation pipe according to claim 1 is characterized in that: The glue gun is fixed to the lower end of the key shaft through a clamping block.

4. The automatic glue injection mechanism for thermal insulation pipe according to claim 1 is characterized in that: The movable frame is a square structure, and the thermal insulation pipe passes through the interior of the movable frame.

5. The automatic glue injection mechanism for thermal insulation pipe according to claim 1 is characterized in that: The top of the mobile frame is provided with a mounting platform, and the connecting plate is fixed on the mounting platform.

6. The automatic glue injection mechanism for thermal insulation pipe according to claim 1 is characterized in that: The two sides of the movable frame are respectively provided with handles.

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