Prefabricated thermal insulation pipe production line opening and closing door
By installing the L-shaped frame and lifting door at the outlet position of the extruder, the problem of opening and closing doors cannot be installed at the door of the traditional extruder is solved, and the equipment sealing and production quality are improved.
Patent Information
- Application Number
- CN202421463398.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Due to the occupation of four cylinders, the door of the traditional extruder cannot be installed, causing dust to enter the equipment, affecting production quality and increasing manufacturing costs.
An L-shaped frame is installed at the outlet position of the extruder, equipped with a slide rail groove and a lifting door, and the cylinder drives the opening and closing of the lifting door to ensure the sealing of the outlet position.
The sealing of the extruder outlet is achieved, dust is prevented from entering, and the frequency of equipment cleaning and manufacturing cost is reduced.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of thermal insulation pipes, and in particular relates to a switch door for a prefabricated thermal insulation pipe production line. Background Art
[0002] Prefabricated direct-buried insulated pipes are composed of steel pipes (working pipes) for conveying media, polyurethane rigid foam plastic layers (insulation layers), and high-density polyethylene outer sleeves (outer protective layers). They have the advantages of low heat loss, good corrosion resistance and insulation properties, and quick and safe construction. They are widely used in insulation and cooling projects for central heating pipelines, central air-conditioning pipelines, chemical, pharmaceutical and other industrial pipelines. The main process is to spray polyurethane on the surface of the steel pipe that has been derusted, and then insert an external protective tube on the outside of the steel pipe, and then inject insulation material foaming liquid into the gap between the steel pipe and the external protective tube to complete the production of the insulation pipe. Among them, the high-density polyethylene outer sleeve is generally extruded by an outer sleeve extruder. There are four cylinders distributed around the door of the traditional extruder. The piston rod of each cylinder has an arc-shaped support plate to support the extruded outer sleeve. Since this position is occupied by four cylinders, this type of extruder cannot be installed with a switch door. If it is not applicable, it can only be covered with paper shells to prevent impurities in the workshop from entering the extruder. If it is not covered, there will be a lot of dust at this exit position every time. When the equipment is started again, the dust will stick to the end of the outer protective tube and cannot be cleaned. The front section is usually cut off, which causes this section to be wasted and increases manufacturing costs. Utility Model Content
[0003] The utility model aims to provide a switch door for a prefabricated insulation pipe production line to solve the problems existing in the background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a switch door of a prefabricated thermal insulation pipe production line, an L-shaped frame is installed at the outlet position of the extruder, slide rail grooves are respectively provided on both sides of the side of the L-shaped frame, a lifting door is provided between the two slide rail grooves, a lifting mechanism connected to the lifting door is provided on the top of the L-shaped frame, four cylinders are fixed on the front side of the slide rail groove, and an arc plate is respectively fixed on the piston rods of the four cylinders.
[0005] Preferably, the lifting mechanism includes a lifting cylinder, a first pulley, a second pulley, a third pulley, a fourth pulley and a movable plate, wherein the lifting cylinder is fixed at the top of the L-shaped frame, the piston rod of the lifting cylinder is connected to one end of the movable plate, the movable plate is connected to the top of the L-shaped frame through a slide rail, the first pulley and the second pulley are installed in parallel at both ends of the movable plate, the third pulley is installed in parallel on the top of the L-shaped frame, the fourth pulley is installed vertically at the edge of the L-shaped frame, one end of the rope is fixed at the top of the lifting door, and the other end passes around the upper part of the fourth pulley to connect the first pulley, the second pulley, and the third pulley in sequence, and is finally fixed at the edge of the movable plate.
[0006] Preferably, the lifting door is made of tempered glass.
[0007] Preferably, the area of the lifting door is the same as the area of the extruder outlet.
[0008] Preferably, the slide rail groove is composed of two clamping plates, and the two clamping plates are fixed together by bolts to form a slide rail groove therebetween.
[0009] The beneficial effects of the utility model are as follows: the device changes the structure of the extruder outlet, adds a lifting door driven by a cylinder, and installs four cylinders on the outside of the lifting door without affecting the original function, while also ensuring the sealing of the extruder outlet position. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is the front view of the utility model;
[0011] Figure 2 It is a top view of the utility model. DETAILED DESCRIPTION
[0012] 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.
[0013] 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.
[0014] 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.
[0015] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings and preferred embodiments.
[0016] like Figure 1 and Figure 2 As shown, the utility model discloses a switch door for a prefabricated insulation pipe production line, wherein an L-shaped frame 1 is installed at the outlet of the extruder, and the two sides of the L-shaped frame are respectively provided with slide rail grooves 2. In the device, the slide rail groove is composed of two plywoods, and the two plywoods are fixed together by bolts to form a slide rail groove. A lifting door 3 is provided between the two slide rail grooves, and in the device, the area of the lifting door is the same as the area of the extruder outlet.
[0017] A lifting mechanism connected to the lifting door is provided at the top of the L-shaped frame, and four cylinders 4 are fixed on the front side of the slide rail groove, and an arc plate 5 is fixed on the piston rods of the four cylinders respectively. The L-shaped frame is mainly composed of two parts: the upper horizontal plate and the side vertical plate, wherein the horizontal plate is used to fix the lifting mechanism, and the vertical plate is used to install the lifting door and the four cylinders. The four cylinders surround the position of the extruder outlet, and the four arc plates can hold up the outer sleeve that has just come out when the cylinders are extended. When the extruder stops, the lifting mechanism drives the lifting door to descend, and the lifting door blocks the position of the extruder outlet, thereby effectively preventing dust and impurities in the workshop from entering the extruder outlet.
[0018] Furthermore, in the present device, in order to make the lifting mechanism simpler and more practical, the present device adopts four pulleys and one cylinder to form a lifting mechanism, specifically, the lifting mechanism includes a lifting cylinder 6, a first pulley 7, a second pulley 8, a third pulley 9, a fourth pulley 10 and a movable plate 11, wherein the lifting cylinder is fixed at the top of the L-shaped frame, the piston rod of the lifting cylinder is connected to one end of the movable plate, the movable plate is connected to the top of the L-shaped frame through a slide rail, the first pulley and the second pulley are installed in parallel at both ends of the movable plate, the third pulley is installed in parallel on the top of the L-shaped frame, and the fourth pulley is vertically installed on the edge of the L-shaped frame, one end of the rope 12 is fixed at the top of the lifting door, and the other end passes around the upper part of the fourth pulley to connect the first pulley, the second pulley, and the third pulley in sequence, and is finally fixed on the edge of the movable plate. When the elevator is started, the movable plate is pushed to move, and the first pulley and the second pulley are driven by the movable plate to move, pulling the rope to move the lifting door upward, thereby opening the extruder outlet. When the extruder is not working, the lifting cylinder returns to its initial state and the lifting door is closed.
[0019] Furthermore, in order to observe the situation inside the extruder outlet, the lifting door is made of tempered glass.
[0020] 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. A prefabricated insulation pipe production line switch door, characterized in that: An L-shaped frame is installed at the outlet of the extruder, and slide rail grooves are respectively provided on both sides of the side of the L-shaped frame, a lifting door is provided between the two slide rail grooves, and a lifting mechanism connected to the lifting door is provided on the top of the L-shaped frame, four cylinders are fixed on the front side of the slide rail groove, and an arc plate is respectively fixed on the piston rods of the four cylinders.
2. The switch door of the prefabricated thermal insulation pipe production line according to claim 1 is characterized in that: The lifting mechanism includes a lifting cylinder, a first pulley, a second pulley, a third pulley, a fourth pulley and a movable plate, wherein the lifting cylinder is fixed on the top of the L-shaped frame, the piston rod of the lifting cylinder is connected to one end of the movable plate, the movable plate is connected to the top of the L-shaped frame through a slide rail, the first pulley and the second pulley are installed in parallel at both ends of the movable plate, the third pulley is installed in parallel on the top of the L-shaped frame, the fourth pulley is installed vertically on the edge of the L-shaped frame, one end of the rope is fixed on the top of the lifting door, and the other end passes around the upper part of the fourth pulley to connect the first pulley, the second pulley, and the third pulley in sequence, and is finally fixed on the edge of the movable plate.
3. The switch door of the prefabricated thermal insulation pipe production line according to claim 1 is characterized in that: The lifting door is made of tempered glass.
4. The switch door of the prefabricated thermal insulation pipe production line according to claim 1 is characterized in that: The area of the lifting door is the same as the area of the extruder outlet.
5. The switch door of the prefabricated thermal insulation pipe production line according to claim 1 is characterized in that: The slide rail groove is composed of two clamping plates, which are fixed together by bolts to form a slide rail groove.