Device for measuring product volume based on gas replacement method

Abstract

The invention belongs to the technical field of product volume measurement, and particularly relates to a device for measuring product volume based on a gas replacement method. The device comprises an arch-shaped frame fixedly arranged on a workbench and an outer cover fixedly arranged on the top wall of the arch-shaped frame, an integration bin located in the outer cover is fixedly arranged on the upper surface of the arch-shaped frame, a sample chamber and a reference chamber which are vertically separated are formed in the integration bin, and the sample chamber and the reference chamber are the same in size; and the lower port of the sample chamber downwards penetrates through the upper surface of the arched frame. The product volume measurement time can be shortened, and the product volume measurement efficiency is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of product volume measurement, and in particular relates to a device for measuring product volume based on a gas replacement method. Background Art

[0002] The products produced in a certain workshop are cylindrical in shape. After a batch of products are produced and formed, the process requires that the density of each product be measured. After the measurement, the products whose density does not meet the standard requirements are selected out.

[0003] The principle of measuring product density in the workshop is: workers first weigh the weight of the product with a weighing scale, then measure the volume of the product with a volume measuring device, and finally calculate the density of the product with a density calculation formula. Among them, the principle of measuring the volume of the product with a volume measuring device is: immerse the product in a measuring cylinder filled with liquid, and measure the volume of the product through the change in the volume of the liquid.

[0004] However, although this volume measuring device can measure the volume of the product, it still has the following technical defects in actual operation:

[0005] After measuring the volume of the product by dipping the product, the product with the liquid attached must be dried before the product can be taken out of the shell, which undoubtedly increases the time for measuring the volume of subsequent products, thereby reducing the volume measurement efficiency of subsequent products, and further reducing the density measurement efficiency of the product. Therefore, there is an urgent need for a volume measurement device that shortens the product volume measurement time and greatly improves the product volume measurement efficiency. Summary of the invention

[0006] The technical problem solved by the present invention is to provide a device for measuring product volume based on the gas replacement method, which can shorten the product volume measurement time and greatly improve the product volume measurement efficiency.

[0007] The technical solution adopted by the present invention is:

[0008] A device for measuring product volume based on a gas displacement method comprises an arch frame fixedly mounted on a workbench and an outer cover fixedly mounted on the top wall of the arch frame, an integrated bin located in the outer cover is fixedly mounted on the upper surface of the arch frame, a sample chamber and a reference chamber separated from each other up and down are provided in the integrated bin, the sample chamber and the reference chamber have the same volume, and a lower port of the sample chamber penetrates downwardly through the upper surface of the arch frame.

[0009] A connecting valve is provided on the left side wall of the integrated chamber, and two ports of the connecting valve are respectively connected with the sample chamber and the reference chamber.

[0010] An air intake valve is fixedly arranged on the top wall of the integrated warehouse, and the air intake valve is communicated with the reference chamber.

[0011] An exhaust valve is fixedly arranged on the integrated chamber, and the exhaust valve is communicated with the sample chamber.

[0012] A pressure sensor is also fixedly arranged on the left side wall of the integrated chamber, and the pressure sensor is communicated with the reference chamber.

[0013] The exhaust port of the exhaust valve and the air inlet of the air inlet valve both extend outside the outer cover.

[0014] A lower channel and an upper channel are provided on the left side wall of the integrated chamber. The lower channel connects the lower port of the connecting valve with the sample chamber, and the upper channel connects the upper port of the connecting valve with the reference chamber.

[0015] It also includes a linear cylinder fixed on the workbench and located in the arch frame, the linear cylinder is provided with a moving block, the upper surface of the moving block is fixed with a feed cylinder, the active end of the feed cylinder piston rod is fixed with a platform, and the top surface of the platform is fixed with a accommodating tube.

[0016] The accommodating tube is a stepped shaft-shaped structure with a circular groove in the center. The inner diameter of the circular groove of the accommodating tube is larger than the diameter of the product. An annular groove located outside its inner cavity is provided on the large end surface of the accommodating tube, and a sealing ring is fixed in the annular groove.

[0017] It also includes a controller, which is connected to the linear cylinder, feed cylinder, intake valve, pressure sensor, connecting valve and exhaust valve via signal lines. The controller controls the start or close of the linear cylinder, intake valve, connecting valve and exhaust valve, and controls the extension or retraction of the feed cylinder piston rod.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention provides a device for measuring product volume based on a gas replacement method, which can shorten the product volume measurement time and greatly improve the product volume measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a device for measuring product volume based on a gas displacement method provided by the present invention;

[0021] Figure 2 for Figure 1 The schematic diagram of the structure without the outer cover;

[0022] Figure 3 It is a connection diagram of the integrated chamber, the air inlet valve, the connecting valve and the exhaust valve;

[0023] Figure 4 for Figure 3 The main cross-sectional diagram of

[0024] Figure 5 It is a structural schematic diagram of the accommodating cylinder;

[0025] Figure 6 A schematic diagram of a product entering into a receiving cylinder of a volume measuring device;

[0026] Figure 7 It is a schematic diagram of the product moving to the sample chamber just below the integrated warehouse;

[0027] Figure 8 A schematic diagram showing the movement of products into the sample room of the integrated warehouse;

[0028] In the figure: 1-workbench, 2-arch frame, 3-outer cover, 4-integrated chamber, 5-sample chamber, 6-reference chamber; 7-connecting valve, 8-inlet valve, 9-exhaust valve, 10-pressure sensor, 11-lower channel, 12-upper channel; 13-linear cylinder, 14-moving block, 15-feeding cylinder, 16-platform, 17-containing cylinder, 18-product. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figure 1 to Figure 5As shown, the present invention provides a device for measuring the volume of a product based on a gas replacement method, comprising an arch frame 2 fixedly mounted on a workbench 1, and an outer cover 3 fixedly mounted on the top wall of the arch frame 2, an integrated chamber 4 located in the outer cover 3 is fixedly mounted on the upper surface of the arch frame 2, a sample chamber 5 and a reference chamber 6 separated from each other are provided in the integrated chamber 4, the sample chamber 5 and the reference chamber 6 have the same volume, and the lower port of the sample chamber 5 penetrates downwardly through the upper surface of the arch frame 2; a connecting valve 7 is provided on the left side wall of the integrated chamber 4, and two ports of the connecting valve 7 are respectively connected to the sample chamber 5 and the reference chamber 6; an air intake valve 8 is fixedly mounted on the top wall of the integrated chamber 4, and the air intake valve 8 is connected to the reference chamber 6, and an exhaust valve 9 is fixedly mounted on the integrated chamber 4, and the exhaust valve 9 is connected to the sample chamber 5; a pressure sensor 10 is also fixedly mounted on the left side wall of the integrated chamber 4, and the pressure sensor 10 is connected to the reference chamber 6; the volume of the sample chamber 5 is similar to that of the product 18.

[0033] The exhaust port of the exhaust valve 9 and the air inlet of the air inlet valve 8 are both extended outside the outer cover 3, and a lower channel 11 and an upper channel 12 are opened on the left side wall of the integrated chamber 4, the lower channel 11 connects the lower port of the connecting valve 7 with the sample chamber 5, and the upper channel 12 connects the upper port of the connecting valve 7 with the reference chamber 6;

[0034] It also includes a linear cylinder 13 fixed on the workbench 1 and located in the arch frame 2, the linear cylinder 13 is provided with a moving block 14, the upper surface of the moving block 14 is fixed with a feed cylinder 15, the action end of the piston rod of the feed cylinder 15 is fixed with a platform 16, the top surface of the platform 16 is fixed with a receiving tube 17, the receiving tube 17 is a stepped shaft structure, the center of which is provided with a circular groove, the inner diameter of the circular groove of the receiving tube 17 is larger than the diameter of the product 18. The large end surface of the receiving tube 17 is provided with an annular groove located outside its inner cavity, and a sealing ring is fixed in the annular groove.

[0035] It also includes a controller, which is connected to the linear cylinder 13, the feed cylinder 15, the intake valve 8, the pressure sensor 10, the connecting valve 7 and the exhaust valve 9 via a signal line. Workers can use the controller to control the start or close of the linear cylinder 13, the intake valve 8, the connecting valve 7 and the exhaust valve 9, and can also control the extension or retraction of the piston rod of the feed cylinder 15, which facilitates the workers' operation and has the characteristics of a high degree of automation.

[0036] The working process of the present invention is as follows:

[0037] S1. The worker puts the product 18 into the receiving tube 17. Figure 6 As shown;

[0038] S2, control the linear cylinder 13 to start, the linear cylinder 13 drives the moving block 14 to move toward the arch frame 2, the moving block 14 drives the feeding cylinder 15 and the receiving tube 17 to move synchronously toward the arch frame 2, when the moving block 14 moves to the set distance, the controller controls the linear cylinder 13 to close, at this time, the receiving tube 17 is just below the sample chamber 5 of the integrated chamber 4, as shown in FIG. Figure 7 As shown;

[0039] S3, control the piston rod of the feed cylinder 15 to extend upward, the piston rod drives the platform 16 to move upward, the platform 16 drives the accommodating tube 17 and the product 18 to move upward synchronously, the product 18 enters the sample chamber 5 from bottom to top, when the piston rod of the feed cylinder 15 is fully extended, the large end surface of the accommodating tube 17 just blocks the bottom port of the sample chamber 5, as shown in FIG. Figure 8 As shown;

[0040] S4, open the air inlet valve 8, and introduce nitrogen into the reference chamber 6 through the air inlet valve 8. After the nitrogen is introduced for a set time, the air inlet valve 8 is controlled to close, and the air pressure in the reference chamber 6 is measured by the pressure sensor 10, which is recorded as P1;

[0041] S5, open the connecting valve 7, the nitrogen in the reference chamber 6 passes through the upper channel 12, the connecting valve 7, the lower channel 11 in sequence, and finally enters the sample chamber 5, the sample chamber 5 and the reference chamber 6 form a new equilibrium pressure, and the equilibrium pressure P2 is measured by the pressure sensor 10; after measuring the equilibrium pressure, open the exhaust valve 9 to discharge the gas in the sample chamber 5 and the reference chamber 6 to the outside;

[0042] S6. Calculate the volume V of product 18 by formula solid ;

[0043] Wherein, the volume of the reference chamber is: V ref (cm 3 ); Sample chamber volume: V cell (cm 3 ), V ref and V cell All are known;

[0044] Among them, it can be seen from steps S2 to S6 that the present device replaces the immersion method to measure the volume of the product 18, so there is no subsequent process of drying the product 18, thereby shortening the subsequent product density measurement time, thereby greatly improving the efficiency of product density measurement.

[0045] S7, taking out the product 18 in the sample chamber 5: the piston rod of the feed cylinder 15 is controlled to retract downward, the piston rod drives the platform 16 to move downward, and the platform 16 drives the receiving tube 17 and the product 18 to move downward, so that the product 18 escapes from the sample chamber 5; after escaping, the moving block 14 of the linear cylinder 13 is controlled to move in the opposite direction, thereby driving the product 18 to return to its original position; after the product 18 returns to its original position, the worker takes the product 18 out of the receiving tube 17;

[0046] S8. Repeat steps S1 to S7 to continuously measure the volumes of multiple products 18.

[0047] 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 exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent 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.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for measuring product volume based on gas displacement method, characterized in that: The invention comprises an arch frame (2) fixedly mounted on a workbench (1), and an outer cover (3) fixedly mounted on the top wall of the arch frame (2); an integrated chamber (4) located inside the outer cover (3) is fixedly mounted on the upper surface of the arch frame (2); a sample chamber (5) and a reference chamber (6) separated from each other in upper and lower parts are arranged in the integrated chamber (4); the sample chamber (5) and the reference chamber (6) have the same volume; and a lower port of the sample chamber (5) penetrates downwardly through the upper surface of the arch frame (2).

2. The device for measuring product volume based on gas displacement method according to claim 1, characterized in that: A communication valve (7) is provided on the left side wall of the integrated chamber (4), and two ports of the communication valve (7) are respectively connected to the sample chamber (5) and the reference chamber (6).

3. The device for measuring product volume based on gas displacement method according to claim 2, characterized in that: An air intake valve (8) is fixedly arranged on the top wall of the integrated chamber (4), and the air intake valve (8) is in communication with the reference chamber (6).

4. The device for measuring product volume based on gas displacement method according to claim 3, characterized in that: The integrated chamber (4) is provided with an exhaust valve (9), and the exhaust valve (9) is in communication with the sample chamber (5).

5. The device for measuring product volume based on gas displacement method according to claim 4, characterized in that: A pressure sensor (10) is also fixedly arranged on the left side wall of the integrated chamber (4), and the pressure sensor (10) is connected to the reference chamber (6).

6. The device for measuring product volume based on gas displacement method according to claim 5, characterized in that: The exhaust port of the exhaust valve (9) and the air inlet of the air inlet valve (8) both extend outside the outer cover (3).

7. The device for measuring product volume based on gas displacement method according to claim 6, characterized in that: A lower channel (11) and an upper channel (12) are provided on the left side wall of the integrated chamber (4); the lower channel (11) connects the lower port of the connecting valve (7) with the sample chamber (5), and the upper channel (12) connects the upper port of the connecting valve (7) with the reference chamber (6).

8. The device for measuring product volume based on gas replacement method according to claim 7, characterized in that: It also includes a linear cylinder (13) fixedly mounted on the workbench (1) and located in the arch frame (2), wherein a moving block (14) is provided on the linear cylinder (13), a feeding cylinder (15) is fixedly mounted on the upper surface of the moving block (14), a platform (16) is fixedly mounted on the action end of the piston rod of the feeding cylinder (15), and a receiving tube (17) is fixedly mounted on the top surface of the platform (16).

9. The device for measuring product volume based on gas displacement method according to claim 8, characterized in that: The accommodating tube (17) is a stepped shaft-shaped structure with a circular groove at its center. The inner diameter of the circular groove of the accommodating tube (17) is larger than the diameter of the product (18). An annular groove located outside its inner cavity is provided on the large end surface of the accommodating tube (17), and a sealing ring is fixed in the annular groove.

10. The device for measuring product volume based on gas replacement method according to claim 9, characterized in that: The invention also comprises a controller, which is connected to the linear cylinder (13), the feed cylinder (15), the intake valve (8), the pressure sensor (10), the connecting valve (7) and the exhaust valve (9) via signal lines. The controller controls the start or shut down of the linear cylinder (13), the intake valve (8), the connecting valve (7) and the exhaust valve (9), and controls the extension or retraction of the piston rod of the feed cylinder (15).

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