Capillary rheometer

Abstract

The utility model discloses a capillary rheometer which comprises a U-shaped frame body, and a connecting pipe is mounted at the bottom of the U-shaped frame body; the outer barrel is mounted in the connecting pipe; the heating pipe is positioned on the U-shaped frame body and is inserted into the outer cylinder body; the electric push rod is arranged on the U-shaped frame body, and the output end of the electric push rod is in transmission connection with a pressing plate; and the auxiliary mechanism is arranged at the top of the U-shaped frame body and used for enabling the electric push rod and the heating pipe to be directly separated from the U-shaped frame body. The auxiliary plate, the supporting frame, the base plate, the connecting column, the operating frame and the locking plate are matched with one another, the electric push rod and the heat conduction pipe are connected in series and supported by the auxiliary plate, the auxiliary plate is positioned through the supporting frame and the connecting column, and the locking plate is driven by the operating frame to limit the relative positions of the supporting frame and the connecting column; and therefore, the electric push rod, the pressing plate and the heating pipe can be uniformly and directly taken down from the U-shaped frame body, and uniform maintenance operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of capillary rheometers, and in particular to a capillary rheometer. Background Technology

[0002] A capillary rheometer is typically a device used to determine the flow properties of thermoplastic materials and elastomers.

[0003] Application No. 202322821867.0 mentions a convenient and easy-to-clean capillary rheometer, including a U-shaped frame and a heating mechanism. The U-shaped frame has a connecting pipe on the lower surface of its upper horizontal plate, and a material cylinder is threaded to the lower end of the connecting pipe. The lower end of the material cylinder has a capillary die, and pressure sensors are respectively installed in the grooves of the inner arc surface of the capillary die. Each pressure sensor has a pressure plate at the upper end of its detection end. Electric push rods are respectively installed in the middle of the upper horizontal plate of the U-shaped frame. A microcontroller is installed at the front end of the U-shaped frame. The input end of the microcontroller is electrically connected to an external power source, the input end of the electric push rod is electrically connected to the output end of the microcontroller, and the output end of the pressure sensor is electrically connected to the input end of the microcontroller. The heating mechanism also includes a heating tube, which is set at the upper end of the U-shaped frame and extends into the interior of the material cylinder at its lower end.

[0004] The capillary rheometer uses a heating tube to heat the material, while an electric pusher moves a pressure plate, applying downward pressure to the molten material and forcing it out of the capillary die. Both the electric pusher and the heating tube are mounted on a U-shaped frame. If maintenance of the heating tube and the pressure plate is required, the U-shaped frame must be disassembled first, and then the heating tube and the pressure plate must be removed step by step for maintenance. However, this method is cumbersome. Therefore, it is necessary for the capillary rheometer to allow the pressure plate and heating tube to be removed directly for maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a capillary rheometer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a capillary rheometer, comprising:

[0007] The frame is U-shaped with connecting pipes installed at the bottom;

[0008] The outer cylinder is installed inside the connecting pipe;

[0009] The heating element is located in the U-shaped frame and is inserted inside the outer cylinder.

[0010] An electric push rod is mounted on a U-shaped frame, and the output end of the electric push rod is connected to a pressure plate.

[0011] An auxiliary mechanism is arranged on the top of the U-shaped frame body, and is used for separating the electric push rod and the heating pipe from the U-shaped frame body directly.

[0012] Preferably, the auxiliary mechanism comprises:

[0013] An auxiliary plate is arranged on the top of the U-shaped frame body;

[0014] A square groove is arranged on the top of the U-shaped frame body, and the auxiliary plate is connected with the inner cavity of the square groove in a sliding manner;

[0015] A support frame is fixedly connected to the top of the auxiliary plate;

[0016] A backing plate is fixedly connected to the top of the U-shaped frame body, and is located in the inner part of the support frame.

[0017] Preferably, the auxiliary mechanism further comprises:

[0018] A connecting column is fixedly connected to the top of the backing plate;

[0019] An installation groove is arranged on the top end of the inner wall of the support frame;

[0020] A locking plate is arranged on the side of the support frame in a sliding manner;

[0021] A positioning groove is arranged on the side of the connecting column, and the locking plate is connected with the inner cavity of the positioning groove in a sliding manner;

[0022] An operation frame is fixedly connected to the side of the locking plate;

[0023] A connecting piece is arranged on the support frame, and is used for connecting the operation frame with the support frame.

[0024] Preferably, the connecting piece comprises:

[0025] An installation cylinder is arranged on the inner wall of the operation frame, and a first circular groove matched with the installation cylinder is arranged on the inner wall of the installation cylinder;

[0026] A sliding rod is connected with the inner cavity of the installation cylinder in a sliding manner, one end of the sliding rod is connected with the inner wall of the first circular groove, and the other end of the sliding rod is threadedly connected with a connecting head;

[0027] A spring is sleeved on the outer part of the sliding rod, one end of the spring is matched with the installation cylinder, and the other end of the spring is matched with the connecting head.

[0028] Preferably, the connecting piece further comprises:

[0029] Second circular groove, the second circular groove is set up in the side of support frame, the connecting head and sliding rod are all with the inner chamber of second circular groove slidingly inserted connection;

[0030] Mounting bolt, the mounting bolt is threaded with the top of support frame, one end of the mounting bolt is threaded with the mounting cylinder.

[0031] Preferably, the U-shaped frame body includes:

[0032] Bearing frame, the top of bearing frame is fixedly connected with round rod, one end of round rod is fixedly connected with the inner wall of U-shaped frame body;

[0033] Reinforcing column, the reinforcing column is fixedly connected to the bottom of auxiliary plate, the reinforcing column is slidably inserted into the inner cavity of bearing frame.

[0034] The technical effects and advantages of the present application are:

[0035] The present application cooperates the auxiliary plate, support frame, backing plate, connecting column, operating frame and locking plate, the auxiliary plate is connected in series with the electric push rod and heat pipe and supported, the support frame and connecting column position the installation of auxiliary plate, the operating frame drives the locking plate to limit the relative position of support frame and connecting column, and then it is favorable to directly take off the electric push rod, pressing plate and heating pipe from the U-shaped frame body, which is convenient for unified maintenance operation and improves work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0036] Fig. 1 It is the whole structure schematic view of the present application.

[0037] Fig. 2 It is the front view structure schematic view of the present application.

[0038] Fig. 3 It is the front view structure schematic view of the present application at connecting column.

[0039] In the figure: 1, U-shaped frame body;2, connecting pipe;3, outer cylinder;4, heating pipe;5, electric push rod;6, pressing plate;7, auxiliary mechanism;71, auxiliary plate;72, support frame;73, backing plate;74, connecting column;75, operating frame;76, locking plate;77, mounting cylinder;78, sliding rod;79, spring;710, connecting head. DETAILED DESCRIPTION

[0040] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0041] The utility model provides a capillary rheometer Figs. 1-3 as shown in a kind of capillary rheometer.

[0042] Embodiment one

[0043] Including U-shaped frame body 1, bottom is equipped with connecting pipe 2, U-shaped frame body 1 includes bearing frame and reinforcing column, bearing frame is favorable to be connected with reinforcing column, in turn be favorable to the installation of auxiliary plate 71 is positioned, to increase the stability of the connection of auxiliary plate 71, the use of U-shaped frame body 1 is consistent with prior art, here is not detailed, the top of bearing frame is fixedly connected with round bar, and one end of round bar is fixedly connected with the inner wall of U-shaped frame body 1, reinforcing column is fixedly connected to the bottom of auxiliary plate 71, and reinforcing column is slidably connected with the inner cavity of bearing frame;Outer cylinder 3 is installed in the inside of connecting pipe 2;Heating pipe 4 is located in U-shaped frame body 1, and is inserted in the inside of outer cylinder 3;Electric push rod 5 is arranged on U-shaped frame body 1, is favorable to push platen 6 and moves, to make material extrude, and the output end of electric push rod 5 is drivingly connected with platen 6;Auxiliary mechanism 7 is arranged at the top of U-shaped frame body 1, and auxiliary mechanism 7 is used to make electric push rod 5 and heating pipe 4 directly separate from U-shaped frame body 1.

[0044] Further, auxiliary mechanism 7 includes auxiliary plate 71, square groove, support frame 72 and backing plate 73, auxiliary plate 71 is favorable to the series connection of electric push rod 5 and heating pipe 4, is directly used to make electric push rod 5 and heating pipe 4 be removed from U-shaped frame body 1 and maintain, is convenient to operate, support frame 72 is L-shaped, and support frame 72 is favorable to the support of auxiliary plate 71, to facilitate the stability of the installation of auxiliary plate 71, backing plate 73 is favorable to the support of support frame 72, to increase the stability of the connection of support frame 72, auxiliary plate 71 is slidably arranged at the top of U-shaped frame body 1, square groove is opened in the top of U-shaped frame body 1, auxiliary plate 71 is slidably connected with the inner cavity of square groove, support frame 72 is fixedly connected to the top of auxiliary plate 71, and backing plate 73 is fixedly connected to the top of U-shaped frame body 1, and backing plate 73 is located in the inside of support frame 72.

[0045] Further, the auxiliary mechanism 7 further comprises a connecting column 74, a mounting groove, a locking plate 76, a positioning groove, an operating frame 75 and a connecting piece, the connecting column 74 is conducive to connecting the support frame 72, thereby facilitating the positioning and installation of the auxiliary plate 71, the locking plate 76 is conducive to limiting the relative position of the connecting column 74 and the support frame 72, thereby facilitating the installation and disassembly of the auxiliary plate 71, so as to directly take out the electric push rod 5 and the heating pipe 4, and directly take out and maintain the pressing plate 6 together with the heating pipe 4, convenient operation, the operating frame 75 is L-shaped, which is conducive to pulling operation of the locking plate 76, so that the locking plate 76 is separated from the connecting column 74, the connecting column 74 is fixedly connected to the top of the backing plate 73, the mounting groove is opened in the top of the inner wall of the support frame 72, the locking plate 76 is slidably inserted into the side of the support frame 72, the positioning groove is opened in the side of the connecting column 74, the locking plate 76 is slidably inserted into the inner cavity of the positioning groove, the operating frame 75 is fixedly connected to the side of the locking plate 76, and the connecting piece is located on the support frame 72. The connecting piece is used for connecting the operating frame 75 and the support frame 72.

[0046] Embodiment two

[0047] On the basis of embodiment one, the connecting piece comprises a mounting cylinder 77, a sliding rod 78, a spring 79, a second circular groove and a mounting bolt, the mounting cylinder 77 is conducive to sliding and horizontal guiding of the sliding rod 78, and is conducive to supporting compression of the spring 79, the sliding rod 78 is conducive to pulling operation of the operating frame 75, so as to facilitate traction operation of the locking plate 76, the elastic force of the spring 79 is conducive to movement of the connecting head 710, so as to facilitate the operating frame 75 and the locking plate 76 to return to the original position after movement, facilitate repeated operation of the locking plate 76, the mounting bolt is conducive to installation and disassembly of the mounting cylinder 77, so as to disassemble the operating frame 75 and the locking plate 76, the inner wall of the operating frame 75 is provided with a first circular groove matched with the mounting cylinder 77, the sliding rod 78 is slidably inserted into the inner cavity of the mounting cylinder 77, one end of the sliding rod 78 is in abutment with the inner wall of the first circular groove, the other end of the sliding rod 78 is threadedly inserted with the connecting head 710, the spring 79 is sleeved outside the sliding rod 78, one end of the spring 79 is in abutment with the mounting cylinder 77, the other end of the spring 79 is in abutment with the connecting head 710, the second circular groove is opened in the side of the support frame 72, the connecting head 710 and the sliding rod 78 are slidably inserted into the inner cavity of the second circular groove, and the mounting bolt is threadedly inserted into the top of the support frame 72. One end of the mounting bolt is threadedly inserted with the mounting cylinder 77.

[0048] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A capillary rheometer, characterized in that, include: U-shaped frame (1), with connecting pipe (2) installed at the bottom; The outer cylinder (3) is installed inside the connecting pipe (2); Heating tube (4) is located in the U-shaped frame (1) and is inserted inside the outer cylinder (3); An electric push rod (5) is mounted on a U-shaped frame (1), and the output end of the electric push rod (5) is connected to a pressure plate (6). An auxiliary mechanism (7) is provided on the top of the U-shaped frame (1). The auxiliary mechanism (7) is used to separate the electric push rod (5) and the heating tube (4) directly from the U-shaped frame (1).

2. The capillary rheometer according to claim 1, characterized in that, The auxiliary mechanism (7) includes: An auxiliary plate (71) is slidably disposed on the top of the U-shaped frame (1); A square channel is formed on the top of the U-shaped frame (1), and the auxiliary plate (71) is slidably inserted into the inner cavity of the square channel. A support frame (72) is fixedly connected to the top of the auxiliary plate (71); A pad (73) is fixedly connected to the top of the U-shaped frame (1) and the pad (73) is located inside the support frame (72).

3. A capillary rheometer according to claim 2, characterized in that, The auxiliary mechanism (7) also includes: A connecting post (74) is fixedly connected to the top of the pad (73); The mounting slot is located at the top of the inner wall of the support frame (72); Locking plate (76), which slides through the side of support frame (72); The positioning groove is located on the side of the connecting column (74), and the locking plate (76) is slidably inserted into the inner cavity of the positioning groove. Operating frame (75), the operating frame (75) is fixedly connected to the side of the locking plate (76); A connector located on a support frame (72) for connecting the operating frame (75) to the support frame (72).

4. A capillary rheometer according to claim 3, characterized in that, The connector includes: Mounting cylinder (77), the inner wall of the operating frame (75) is provided with a first circular groove that is adapted to the mounting cylinder (77); A sliding rod (78) is slidably inserted into the inner cavity of the mounting cylinder (77). One end of the sliding rod (78) is connected to the inner wall of the first circular groove, and the other end of the sliding rod (78) is threadedly connected to a connector (710). A spring (79) is sleeved on the outside of the sliding rod (78). One end of the spring (79) is in contact with the mounting cylinder (77), and the other end of the spring (79) is in contact with the connector (710).

5. A capillary rheometer according to claim 4, characterized in that, The connector also includes: The second circular groove is formed on the side of the support frame (72), and the connector (710) and the sliding rod (78) are slidably inserted into the inner cavity of the second circular groove. The mounting bolt is threadedly connected to the top of the support frame (72), and one end of the mounting bolt is threadedly connected to the mounting cylinder (77).

6. A capillary rheometer according to claim 1, characterized in that, The U-shaped frame (1) includes: A support frame, the top of which is fixedly connected to a round rod, one end of which is fixedly connected to the inner wall of the U-shaped frame (1); The reinforcing column is fixedly connected to the bottom of the auxiliary plate (71) and is slidably inserted into the inner cavity of the bearing frame.

Images