Device for detecting compressive resistance of plastic packaging barrel

Abstract

The invention discloses a device for detecting the pressure resistance of a plastic packaging barrel, which relates to the technical field of pressure resistance detection of plastic packaging barrels and comprises a high-pressure-resistant box body, a round cover, a material injection guide pipe, an L-shaped pipe, an oil cylinder, a piston rod, a high-pressure-resistant protective shell, a camera, a light source lamp and a laser heater. The packaging barrel has the beneficial effects that the mode that the pressure of the sealed space around the packaging barrel body is adjusted to implement pressure resistance detection is adopted, the sufficiency of pressure bearing of all parts of the surface of the packaging barrel body is guaranteed, and a pressure resistance detection blind area is avoided; the packaging barrel body is locally heated step by step through the laser heater until holes are formed, and the change condition of the heating position of the packaging barrel body in the pressure environment is captured by combining with the camera running at the corresponding part, so that reference data are provided for subsequent analysis and optimization of the material process; materials are added into the packaging barrel body through the material injection guide pipe, so that the detection condition requirements of the compression resistance condition after the packaging barrel is filled with products are met.

Description

Technical Field

[0001] The invention relates to the technical field of pressure resistance detection of plastic packaging barrels, in particular to a device for detecting the pressure resistance of a plastic packaging barrel. Background Art

[0002] Plastic packaging barrels are not easy to break, do not rust and are lightweight. They are widely used in the fields of chemicals, pesticides, medicines, food, hardware, electronics, and electromechanical. After the plastic packaging barrels are produced, the barrel body needs to be pressure tested to determine whether the product is qualified.

[0003] The current pressure resistance testing device has a single structure and function. The pressure direction of the plastic packaging barrel is usually from top to bottom, and the two ends of the barrel body are used as clamping points to apply force to other parts. There is a blind spot on the corresponding surface of the barrel body, which cannot ensure the sufficiency of the force on each part of the surface of the plastic packaging barrel, resulting in incomplete and inaccurate test results. Therefore, a plastic packaging barrel pressure resistance testing device is proposed to address the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a device for detecting the pressure resistance of a plastic packaging barrel in order to solve the above-mentioned problem.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a device for detecting the pressure resistance of a plastic packaging barrel, comprising a high-pressure resistant box, a round cover, a material injection conduit, an L-shaped tube, an oil cylinder, a piston rod, a high-pressure resistant protective shell, a camera, a light source lamp and a laser heater, wherein the high-pressure resistant protective shells are installed at the tops of the four corners of the high-pressure resistant box, and the round cover is threadedly connected to the circular hole at the top of the high-pressure resistant box, the two sides of the high-pressure resistant box are connected and installed with L-shaped tubes, and the outer end of the piston rod located in the L-shaped tube is connected to the output end of the oil cylinder through a connecting block to form a gas pressure force structure for expanding and contracting the packaging barrel body; The inner walls of the three protective windows of the high-pressure protective shell are respectively installed with a camera, a light source lamp, and a laser heater from top to bottom. The laser heater forms simulated crushing holes on the surface of the packaging barrel body in the high-pressure resistant box by heating, and the position of each simulated crushing hole is set within the camera shooting range.

[0006] Preferably, one end of the material injection conduit located at the bottom of the round cover is connected to a barrel mouth spiral connector, and the barrel mouth spiral connector and the barrel mouth thread structure of the packaging barrel body are threadedly fixedly connected to each other.

[0007] Preferably, a control valve is installed on the tube body outside the material injection conduit, and the outer port of the material injection conduit is connected to an external feeding device.

[0008] Preferably, one end of the pressure relief pipe is exposed on one side of the bottom end surface of the round cover, and the outer end of the pressure relief pipe is connected to an electric control valve installed thereon.

[0009] Preferably, a high pressure resistant transparent plate is provided on the front side of the high pressure resistant box.

[0010] Preferably, a table connecting plate is installed at the bottom of the high-pressure resistant box.

[0011] Preferably, the packaging barrel body has three detection stages, namely, an expansion detection stage, a contraction detection stage and a damage hole stage.

[0012] The beneficial effects of the present invention are: 1. When the oil cylinder is in the extended or contracted state, the piston rod connected by the connecting block moves from bottom to top or from top to bottom in the L-shaped tube, so as to achieve the effect of compressing or expanding the packaging barrel body in the high-pressure resistant box. The pressure of the sealed space around the packaging barrel body is adjusted to perform the pressure resistance test, which ensures that all parts of the surface of the packaging barrel body are fully pressurized and avoids the blind area of ​​the pressure resistance test; Second, the laser heater is used to gradually heat the barrel body locally until holes are formed, and the camera running at the corresponding position is used to capture the changes in the heated part of the barrel body under pressure, providing reference data for subsequent analysis and optimization of material processing; material is added to the inside of the barrel body through the material injection catheter to meet the testing conditions for the pressure resistance of the barrel after the product is loaded. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention; Figure 2 Another perspective schematic diagram of the overall structure of the present invention; Figure 3 A diagram showing the connection between the overall structure of the present invention and the packaging barrel body; Figure 4 It is a schematic diagram of the compressed state of the packaging barrel body; Figure 5 It is a schematic diagram of the expansion state of the packaging barrel body; Figure 6 It is a schematic diagram of the packaging barrel body in an expanded state with a hole.

[0015] In the figure: 1. high-pressure resistant box; 110. round hole; 120. high-pressure resistant transparent plate; 130. table connecting plate; 2. round cover; 210. barrel mouth spiral connector; 3. material injection conduit; 4. pressure relief pipe; 5. electric control valve; 6. L-shaped pipe; 7. oil cylinder; 8. connecting block; 9. piston rod; 10. high-pressure resistant protective shell; 11. camera; 12. light source lamp; 13. laser heater; 14. packaging barrel body. DETAILED DESCRIPTION

[0016] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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.

[0017] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0018] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] See also Figure 1-6 As shown, a device for detecting the pressure resistance of a plastic packaging barrel comprises a high-pressure resistant box 1, a round cover 2, a material injection conduit 3, an L-shaped tube 6, an oil cylinder 7, a piston rod 9, a high-pressure resistant protective shell 10, a camera 11, a light source lamp 12 and a laser heater 13. The high-pressure resistant protective shell 10 is installed at the top of the four corners of the high-pressure resistant box 1, and the round cover 2 is threadedly connected to the circular hole 110 at the top of the high-pressure resistant box 1. The two sides of the high-pressure resistant box 1 are connected and installed with L-shaped tubes 6, and the outer end of the piston rod 9 located in the L-shaped tube 6 is connected to the output end of the oil cylinder 7 through a connecting block 8 to form a gas pressure force structure for expanding and contracting the packaging barrel body 14. The material injection conduit 3 at the bottom of the round cover 2 is connected and installed with a barrel mouth spiral connector 210, and the barrel mouth spiral connector 210 and the barrel mouth thread structure of the packaging barrel body 14 are threadedly fixedly connected to each other; By extending or contracting the oil cylinder 7, the piston rod 9 connected via the connecting block 8 is moved from bottom to top or from top to bottom in the L-shaped tube 6, so as to achieve the effect of compressing or expanding the packaging barrel body 14 in the high-pressure resistant box 1. By adjusting the pressure of the sealed space around the packaging barrel body 14 to implement the pressure resistance test, it is ensured that all parts of the surface of the packaging barrel body 14 are sufficiently pressurized, and the blind area of ​​the pressure resistance test is avoided.

[0020] The inner side walls of the three protection windows of the high-pressure protection shell 10 are respectively installed with a camera 11, a light source lamp 12, and a laser heater 13 from top to bottom. The laser heater 13 forms simulated crushing holes on the surface of the packaging barrel body 14 located in the high-pressure protection box 1 by heating, and each simulated crushing hole is set within the camera 11 shooting range. The packaging barrel body 14 has three detection stages, namely, an expansion detection stage, a contraction detection stage, and a damage hole stage; When the packaging barrel body 14 is in an expanded or compressed state, the packaging barrel body 14 is locally and gradually heated by the laser heater 13 until holes are formed, and the camera 11 operating at the corresponding position is combined to capture the changes in the heated part of the packaging barrel body 14 under the pressure environment, providing reference data for subsequent analysis and optimization of material processing.

[0021] A control valve is installed on the tube body outside the material injection conduit 3, and the outer port of the material injection conduit 3 is connected to an external feeding device. Material is added to the packaging barrel body 14 through the material injection conduit 3 to meet the testing conditions for the pressure resistance of the packaging barrel after the product is loaded.

[0022] One end of the pressure relief pipe 4 is exposed on one side of the bottom end surface of the round cover 2, and the outer end of the pressure relief pipe 4 is connected to an electric control valve 5, which plays a role in controlling the connection between the high-pressure resistant box 1 and the outside, making it convenient to open the round cover located at the round hole 110.

[0023] Furthermore, a high pressure resistant transparent plate 120 is provided on the front side of the high pressure resistant box body 1 .

[0024] Furthermore, a table connecting plate 130 is installed at the bottom of the high-pressure resistant box 1 .

[0025] When the present invention is in use, the piston rod 9 connected via the connecting block 8 is moved from bottom to top or from top to bottom in the L-shaped tube 6 by the oil cylinder 7 being in an extended or contracted state, so as to achieve the effect of compressing or expanding the packaging barrel body 14 in the high-pressure resistant box 1. The pressure of the sealed space around the packaging barrel body 14 is adjusted to perform the pressure resistance test, thereby ensuring that all parts of the surface of the packaging barrel body 14 are sufficiently pressurized and avoiding the blind area of ​​the pressure resistance test. When the packaging barrel body 14 is in an expanded or compressed state, the packaging barrel body 14 is locally and gradually heated by the laser heater 13 until holes are formed, and the camera 11 operating at the corresponding position is used to capture the changes in the heated portion of the packaging barrel body 14 under pressure, providing reference data for subsequent analysis and optimization of material processing, and adding material to the inside of the packaging barrel body 14 through the material injection conduit 3 to meet the testing conditions for the pressure resistance of the packaging barrel after the product is loaded.

[0026] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations within the meaning and scope of the elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0027] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for testing the pressure resistance of a plastic packaging barrel, characterized in that: The invention comprises a high-pressure resistant box (1), a round cover (2), a material injection conduit (3), an L-shaped tube (6), an oil cylinder (7), a piston rod (9), a high-pressure resistant protective shell (10), a camera (11), a light source lamp (12) and a laser heater (13); the high-pressure resistant protective shell (10) is installed at the top of the four corners of the high-pressure resistant box (1), and the round cover (2) is connected to the inner thread of the circular hole (110) located at the top of the high-pressure resistant box (1); the L-shaped tube (6) is installed on both sides of the high-pressure resistant box (1), and the outer end of the piston rod (9) located in the L-shaped tube (6) is connected to the output end of the oil cylinder (7) through a connecting block (8) to form a gas pressure force structure for expanding and contracting the packaging barrel body (14); A camera (11), a light source lamp (12), and a laser heater (13) are respectively installed on the inner side walls of the three protection windows of the high-pressure resistant protective shell (10) from top to bottom. The laser heater (13) forms simulated crushing holes on the surface of the packaging barrel body (14) located in the high-pressure resistant box (1) by heating, and the position of each simulated crushing hole is set within the photographing range of the camera (11).

2. A device for testing the pressure resistance of a plastic packaging barrel according to claim 1, characterized in that: One end of the material injection conduit (3) located at the bottom of the round cover (2) is connected to a barrel mouth spiral connector (210) installed thereon, and the barrel mouth spiral connector (210) and the barrel mouth thread structure of the packaging barrel body (14) are threadedly fixedly connected to each other.

3. A device for testing the pressure resistance of a plastic packaging barrel according to claim 2, characterized in that: A control valve is installed on the external pipe body of the material injection conduit (3), and the external port of the material injection conduit (3) is connected to an external material supply device.

4. A device for testing the pressure resistance of a plastic packaging barrel according to claim 1, characterized in that: One end of a pressure relief pipe (4) is exposed on one side of the bottom end surface of the round cover (2), and the outer end portion of the pressure relief pipe (4) is connected to an electric control valve (5) installed thereon.

5. The device for testing the pressure resistance of a plastic packaging barrel according to claim 1, characterized in that: The front side of the high-pressure resistant box (1) is provided with a high-pressure resistant transparent plate (120).

6. The device for testing the pressure resistance of a plastic packaging barrel according to claim 1, characterized in that: A table connection plate (130) is installed at the bottom of the high-pressure resistant box (1).

7. The device for testing the pressure resistance of a plastic packaging barrel according to claim 1, characterized in that: The packaging barrel body (14) has three detection stages, namely, an expansion detection stage, a contraction detection stage, and a damage hole stage.

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