Extrusion device for testing extrudability of paste sealant

Abstract

The utility model relates to the technical field of sealant testing, in particular to an extrusion device for testing the extrudability of pasty sealant, which comprises an extrusion rubber barrel, a top cover arranged at the top end of the extrusion rubber barrel, an air inlet pipe arranged on the top cover, an extrusion head detachably connected to the bottom end of the extrusion rubber barrel, an inner sleeve rubber barrel arranged in the extrusion rubber barrel, and an outer sleeve rubber barrel arranged in the inner sleeve rubber barrel. The bottom end of the inner sleeve rubber cylinder is closed and provided with an extrusion through hole corresponding to the extrusion hole in position, and a rubber pressing piston is slidably connected into the inner sleeve rubber cylinder. According to the utility model, the inner sleeve rubber cylinder is arranged in the extrusion rubber cylinder, and the bottom end of the extrusion rubber cylinder is detachably connected with the extrusion head, so that when sealants in different batches are frequently replaced for testing, the inner sleeve rubber cylinder and the extrusion head can be replaced, and the extrusion rubber cylinder and the extrusion head do not need to be cleaned; and the next batch of sealant can be tested after the sealant pressing piston is cleaned, so that the workload of cleaning can be reduced, and the testing efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of sealant testing technology, and in particular to an extrusion device for testing the extrudability of paste sealants. Background Technology

[0002] In the sealant industry, the extrudability of paste sealants is a crucial test item, as it accurately reflects the stability of the sealant during the production process.

[0003] Currently, the extrudability test method for paste sealants typically involves filling the sealant to be tested into a testing device, using compressed air to extrude the sealant under specified conditions, and then weighing the extruded sealant to measure the extruded mass of the sealant per unit time. However, during the sealant production process, it is necessary to frequently change different batches of sealant for testing. Each time a new batch of sealant is tested, the testing device must be cleaned before the next batch of testing can begin. However, the cleaning workload is large and the cleaning time is long, which affects the testing efficiency. Therefore, there are still shortcomings and deficiencies in the existing technology. Utility Model Content

[0004] This invention provides an extrusion device for testing the extrudability of paste-like sealants, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an extrusion device for testing the extrudability of paste sealant, including a vertically arranged extrusion tube, a top cover at the top of the extrusion tube, an air inlet pipe on the top cover, an open bottom end of the extrusion tube with an extrusion head having an extrusion hole detachably connected thereto, an inner sleeve tube adapted to the extrusion tube inside the extrusion tube, an open top end of the inner sleeve tube, a closed bottom end of the inner sleeve tube with an extrusion through hole corresponding to the position of the extrusion hole, and a pressure piston slidably connected inside the inner sleeve tube.

[0006] Preferably, it also includes a support, an extrusion cartridge mounted on the support, and a receiving mechanism for holding the paste sealant is provided on the support located below the extrusion cartridge.

[0007] Preferably, the bracket includes a horizontally arranged base plate, a support rod is fixedly connected to the top surface of the base plate, and a clamping assembly is installed between the top of the support rod and the extrusion cylinder, the clamping assembly being detachably connected to the extrusion cylinder.

[0008] Preferably, the glue receiving mechanism includes a turntable rotatably connected to the bracket, the turntable being located below the extrusion cylinder, and a plurality of grooves evenly distributed along the circumference of the turntable being formed on the top surface of the turntable, with glue receiving discs positioned corresponding to the extrusion holes in the grooves.

[0009] Preferably, a connecting wire is fixedly connected between the pressure-bonded piston and the top cover.

[0010] Preferably, the top cover is equipped with an airtight gasket.

[0011] Preferably, the extruder head is made of polytetrafluoroethylene.

[0012] The beneficial effects of this utility model are as follows: (1) This utility model sets an inner sleeve in the extrusion tube and detachably connects an extrusion head to the bottom of the extrusion tube. In this way, when different batches of sealant are frequently changed for testing, the inner sleeve and the extrusion head can be replaced. This eliminates the need to clean the extrusion tube and the extrusion head. After cleaning the pressing piston, the next batch of sealant can be tested, thereby reducing cleaning time and improving testing efficiency; (2) By setting a turntable to drive several receiving trays to rotate, it is possible to switch the receiving trays in a short time, thereby enabling several tests on a batch of sealant in a short time, further improving testing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a cross-sectional view of the present invention from the side.

[0015] Figure 3 This is a top view of the adhesive bonding mechanism of this utility model.

[0016] Reference numerals: 1. Extrusion tube, 2. Top cover, 3. Air inlet pipe, 4. Extrusion head, 5. Extrusion hole, 6. Inner sleeve tube, 7. Extrusion through hole, 8. Pressing piston, 9. Bracket, 91. Base plate, 92. Support rod, 10. Glue receiving mechanism, 101. Turntable, 102. Glue receiving tray, 11. Clamping assembly, 12. Connecting line, 13. Airtight gasket. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings. The following description is based on the accompanying drawings. Figure 1 The direction in the middle is the reference.

[0018] like Figure 1-3As shown, this utility model provides an extrusion device for testing the extrudability of a paste-like sealant, including a vertically arranged extrusion cylinder 1. The extrusion cylinder 1 can be made of stainless steel, carbon steel, or other materials. A top cover 2 is provided at the top of the extrusion cylinder 1. To quickly open the top cover 2, the extrusion cylinder 1 and the top cover 2 are connected by a quick-connect buckle. An air inlet pipe 3 is provided on the top cover 2. To quickly connect to an air source, a quick connector is provided at the end of the air inlet pipe 3 away from the top cover 2. The bottom end of the extrusion cylinder 1 is open and detachably connected to a device with an extrusion hole 5. The detachable connection between the extruder head 4, the extrusion tube 1, and the extruder head 4 can be a threaded connection or a snap-fit ​​connection. The extruder head 4 is made of polytetrafluoroethylene. The extrusion tube 1 has an inner sleeve tube 6 that is adapted to the extrusion tube 1. The top of the inner sleeve tube 6 is open, and the bottom of the inner sleeve tube 6 is closed and has an extrusion through hole 7 corresponding to the position of the extrusion hole 5. The outer wall of the inner sleeve tube 6 abuts against the inner wall of the extrusion tube 1. The inner sleeve tube 6 has a sliding connection with a pressure piston 8. Both the inner sleeve tube 6 and the extruder head 4 are disposable consumables.

[0019] Specifically, when frequently changing different batches of sealant for testing, firstly, open the top cover 2 and remove the pressing piston 8. Then, replace the inner sleeve 6 and the extrusion head 4. This eliminates the need to clean the extrusion sleeve 1 and the extrusion head 4, allowing the sealant to be tested to be filled into the inner sleeve 6. While adding the sealant, the pressing piston 8 can be cleaned. Then, the cleaned pressing piston 8 is filled into the inner sleeve 6, and the top cover 2 is closed. Finally, the air source can be connected to extrude the sealant at a constant pressure. After extrusion, the air source is disconnected, and the extrusion time is recorded, thus measuring the extrudability of the sealant. This invention reduces cleaning time and improves testing efficiency by replacing the inner sleeve 6 and the extrusion head 4.

[0020] In some embodiments, it further includes a support 9, on which the extrusion cartridge 1 is mounted, and a receiving mechanism 10 for holding the paste sealant is provided on the support 9 below the extrusion cartridge 1. The support 9 includes a horizontally arranged base plate 91, on which a support rod 92 is fixedly connected. A clamping assembly 11 is installed between the top of the support rod 92 and the extrusion cartridge 1. The clamping assembly 11 can be a clamp, a clamp, etc., both of which are existing technologies. In this embodiment, the clamping assembly 11 is a clamp, and the clamping assembly 11 is detachably connected to the extrusion cartridge 1. Specifically, in use, the support 9 can support and fix the extrusion cartridge 1 through the clamp. In addition, the clamp can be loosened to adjust the height of the extrusion cartridge 1, thereby facilitating operation by the testing personnel.

[0021] In some embodiments, the adhesive receiving mechanism 10 includes a turntable 101 rotatably connected to the support 9. The turntable 101 is located below the extrusion cylinder 1. A plurality of grooves are equidistantly distributed along the circumference of the turntable 101 on its top surface. Each groove contains an adhesive receiving tray 102 positioned corresponding to the extrusion hole 5. Specifically, since there are several adhesive receiving trays 102, the turntable 101 can drive these trays to rotate, allowing for quick switching of the trays during sealant extrusion. The trays can then be removed for weighing, enabling multiple tests on a batch of sealant in a short time, further improving testing efficiency.

[0022] In some embodiments, a connecting line 12 is fixedly connected between the pressure piston 8 and the top cover 2. The connecting line 12 is made of high-strength wire and its length is greater than that of the extrusion tube 1. By setting the connecting line 12, it is easy to remove the pressure piston 8.

[0023] In some embodiments, an airtight gasket 13 is provided inside the top cover 2. By providing the airtight gasket 13, the airtightness between the top cover 2 and the extrusion tube 1 can be improved, thereby reducing the leakage of compressed air inside the extrusion tube 1 and improving the accuracy of the test.

[0024] The above embodiments can be combined with each other.

[0025] The above embodiments are not intended to limit the shape, material, structure, etc. of this utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. An extrusion device for testing the extrudability of paste sealant, comprising an extrusion cartridge arranged vertically, a top cap being arranged at the top end of the extrusion cartridge, and an air inlet pipe being arranged on the top cap, characterized in that: The bottom end of the extrusion glue barrel is provided with an extrusion head with an extrusion hole, detachably connected.

2. The extrusion device for testing the extrudability of paste sealant according to claim 1, wherein: It also comprises a support, the extrusion glue barrel is installed on the support, and the support below the extrusion glue barrel is provided with a glue receiving mechanism for containing paste sealant.

3. The extrusion device for testing the extrudability of paste sealant according to claim 2, characterized in that: The support comprises a horizontally arranged bottom plate, the top surface of the bottom plate is fixedly connected with a support rod, a clamping assembly is installed between the top of the support rod and the extrusion glue barrel, and the clamping assembly is detachably connected with the extrusion glue barrel.

4. The extrusion device for testing the extrudability of paste sealant according to claim 2, wherein: The glue receiving mechanism comprises a rotating disc rotatably connected to the support, the rotating disc is below the extrusion glue barrel, the top surface of the rotating disc is provided with a plurality of grooves equidistantly distributed along the circumference of the rotating disc, and the grooves are provided with glue receiving discs corresponding to the extrusion holes.

5. The extrusion device for testing the extrudability of paste sealant according to claim 1, wherein: The glue receiving mechanism comprises a rotating disc rotatably connected to the support, the rotating disc is below the extrusion glue barrel, the top surface of the rotating disc is provided with a plurality of grooves equidistantly distributed along the circumference of the rotating disc, and the grooves are provided with glue receiving discs corresponding to the extrusion holes.

6. The extrusion device for testing the extrudability of paste sealant according to claim 1, wherein: The glue receiving mechanism comprises a rotating disc rotatably connected to the support, the rotating disc is below the extrusion glue barrel, the top surface of the rotating disc is provided with a plurality of grooves equidistantly distributed along the circumference of the rotating disc, and the grooves are provided with glue receiving discs corresponding to the extrusion holes.

7. The extrusion device for testing the extrudability of paste sealant according to claim 1, wherein: The extrusion head is made of polytetrafluoroethylene.

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