Paste pressing device

Abstract

The utility model discloses a paste pressing device which comprises a vacuum pump, a vacuum regulating valve, a pressing disc, a thin film, a storage cylinder, a lifting driving mechanism, a discharging ball valve, a filter, a discharging regulating valve, an electronic scale, a packaging barrel and a backflow regulating valve. And the discharge port of the filter is communicated with the feed port of the packaging barrel and is also communicated with the feed port of the discharge ball valve through the backflow regulating valve. Air between a film and paste is pumped away through the vacuum pump, after feedback is conducted through the vacuum-discharging interlocking unit in the exhausting process, pressing is stopped through the pressing machine-discharging interlocking unit, material returning is conducted through the backflow-discharging interlocking unit, pressure overload of the paste is prevented, exhausting and weighing metering interlocking in the paste pressing process is achieved, and the sealing performance of the paste is improved. Exhaust and metering in the material pressing process are effectively controlled, the problem of glue explosion caused by the fact that the paste is mixed with air is solved, and the device can be applied to industrial production of the paste such as glue.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressing discs, and in particular relates to a paste pressing device. Background Art

[0002] In the production process of glue and other pastes, the main raw materials are polyether polyol, catalyst, powder, etc. First, polyether polyol is put into the cylinder. After the feeding is completed, the catalyst, powder and other raw materials are passed through the cylinder. After the feeding is completed, vacuum is drawn and stirred to mix. After the mixing is completed, the cylinder is pulled to the pressing disc, and the pressing disc transports the material to the packaging barrel.

[0003] In the prior art, there is no clear solution to the problem of degassing of the paste during the pressing process. Measuring by simple electronic scales is difficult to meet the requirements of industrial production. Air mixing and inaccurate measurement of the paste can easily lead to the problem of paste explosion, which has a great impact on the quality and performance of the product.

[0004] Therefore, a paste pressing device is in urgent need of being proposed. Utility Model Content

[0005] In order to solve the defects of the prior art, the utility model provides a paste pressing device.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] The utility model provides a paste pressing device, comprising a vacuum pump, a vacuum regulating valve, a pressing disc, a film, a storage cylinder, a lifting drive mechanism, a discharge ball valve, a filter, a discharge regulating valve, an electronic scale, a packaging barrel, and a reflux regulating valve. The vacuum pump is connected to the pressing disc through the vacuum regulating valve, the film is pressed on the paste in the storage cylinder, the pressing disc is arranged directly above the storage cylinder and is lifted and moved in the vertical direction, the output end of the lifting drive mechanism is transmission-connected with the pressing disc, the discharge ball valve is connected to the bottom of the storage cylinder, the discharge port of the discharge ball valve is connected to the feed port of the filter, the discharge port of the filter is connected to the feed port of the packaging barrel through the discharge regulating valve, the discharge port of the filter is also connected to the feed port of the discharge ball valve through the reflux regulating valve, and the packaging barrel is arranged on the electronic scale.

[0008] Preferably, an air extraction port connected to a vacuum regulating valve is provided on the upper surface of the pressing disc, and at least one air suction hole is provided on the lower surface of the pressing disc, and the air suction hole is connected to the air extraction port.

[0009] Preferably, at least one pair of grooves is provided on the side wall of the pressing disc along its circumferential direction, and each pair of grooves is located on the same diameter line, and convex strips matching the grooves are vertically provided on the inner wall of the storage cylinder.

[0010] Preferably, the lifting drive mechanism is a drive cylinder, and the output end of the drive cylinder is connected to the pressure plate disc through a connecting rod.

[0011] Preferably, the lifting drive mechanism includes a motor and a ball screw. The output end of the motor is coaxially and drivably connected to the screw rod of the ball screw, and the nut of the ball screw is connected to the pressure plate disc.

[0012] Preferably, a vacuum-discharge interlock unit is provided between the vacuum regulating valve and the discharge ball valve, a pressure-feed-discharge interlock unit is provided between the lifting drive mechanism and the computer control terminal, a weighing-discharge interlock unit is provided between the electronic scale and the computer control terminal, and a reflux-discharge interlock unit is provided between the reflux regulating valve and the discharge regulating valve.

[0013] Preferably, the volume range of the storage cylinder is 100 - 5000 L, and the pipe diameter range of the vacuum regulating valve is DN10 - 50.

[0014] Preferably, the pipe diameter range of the discharge regulating valve is DN10 - 50, and the pressure-feed flow rate range is 1 - 50 kg / min.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] The present utility model evacuates the air between the thin film and the paste through a vacuum pump. During the exhaust process, feedback is provided by the vacuum-discharge interlock unit, the pressure-feed stops by the pressure-feed-discharge interlock unit, and at the same time, the reflux-discharge interlock unit returns the material to prevent the pressure overload of the paste, realizing the exhaust and weighing metering interlock during the paste pressure-feed process, effectively controlling the exhaust and metering during the pressure-feed process, solving the problem of explosive glue caused by air mixing into the paste, and can be applied in the industrial production of pastes such as glue. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of a paste pressure-feed device of the present utility model;

[0018] Figure 2 is the structural schematic diagram of the pressure plate disc in Embodiment 1 of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the pressure plate disc in Embodiment 2 of the present utility model. Detailed Embodiments

[0020] The following describes the preferred embodiments of the present utility model with reference to the drawings. It should be understood that the preferred embodiments described herein are only for illustrating and explaining the present utility model, and are not used to limit the present utility model.

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left" and "right" is based on the orientation or positional relationship shown in the accompanying drawings of the specification. Figure 1 It is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] Embodiment 1

[0024] As Figure 1 shown, this embodiment provides a paste pressing device, including a vacuum pump 1, a vacuum regulating valve 2, a pressing disc 3, a film 4, a storage cylinder 5, a lifting drive mechanism 6, a discharge ball valve 7, a filter 8, a discharge regulating valve 9, an electronic scale 11, a packaging barrel 12, and a reflux regulating valve 13. The vacuum pump 1 is connected to the pressing disc 3 through the vacuum regulating valve 2. The film 4 is pressed on the paste in the storage cylinder 5. The pressing disc 3 is arranged directly above the storage cylinder 5 and is arranged to move up and down in the vertical direction. The output end of the lifting drive mechanism 6 is in transmission connection with the pressing disc 3. The discharge ball valve 7 is connected to the bottom of the storage cylinder 5. The discharge port of the discharge ball valve 7 is connected to the feed port of the filter 8. The discharge port of the filter 8 is connected to the feed port of the packaging barrel 12 through the discharge regulating valve 9. The discharge port of the filter 8 is also connected to the feed port of the discharge ball valve 7 through the reflux regulating valve 13. The packaging barrel 12 is arranged on the electronic scale 11.

[0025] As Figure 2 shown, an air extraction port communicating with the vacuum regulating valve 2 is opened on the upper surface of the pressing disc 3. Eight suction holes 31 are opened on the lower surface of the pressing disc 3. The suction holes 31 are communicated with the air extraction port. Two pairs of grooves 32 are arranged on the side wall of the pressing disc 3 along its circumferential direction. Each pair of grooves 32 is located on the same diameter line. A convex strip matching the grooves 32 is vertically arranged on the inner wall of the storage cylinder 5.

[0026] In this embodiment, the lifting drive mechanism 6 is a driving cylinder. The output end of the driving cylinder is connected to the pressing disc through a connecting rod.

[0027] In this embodiment, the volume range of the storage cylinder 5 is 100~5000L, preferably 1000L in this embodiment, and the diameter range of the vacuum regulating valve 2 is DN10~50, preferably DN20 in this embodiment.

[0028] In this embodiment, the diameter of the discharge regulating valve 9 ranges from DN10 to DN50, preferably DN20 in this embodiment, and the pressure flow rate ranges from 1 to 50 kg / min, preferably DN20 kg / min in this embodiment.

[0029] In this embodiment, a vacuum-discharge interlock unit 14 is provided between the vacuum regulating valve 2 and the discharge ball valve 7, a pressing-discharge interlock unit 15 is provided between the lifting drive mechanism 6 and the computer control end 10, a weighing-discharge interlock unit 16 is provided between the electronic scale 11 and the computer control end 10, and a reflux-discharge interlock unit 17 is provided between the reflux regulating valve 13 and the discharge regulating valve 9.

[0030] The working principle of this embodiment is further described below:

[0031] The finished paste is stored in a storage tank. A thin film is placed over the paste. The cylinder is activated via a computer control unit, and the pressing disc begins pressing downward. Simultaneously, the vacuum pump and vacuum control valve are activated to remove the air between the film and the paste. The packaging barrel is pre-placed on an electronic scale, and the discharge ball valve, reflux control valve, and discharge control valve are opened. The discharge control valve and electronic scale are controlled via a computer control unit. If bubbles appear during the pressing process, causing the paste to explode, the vacuum-discharge interlock unit, after receiving feedback, stops pressing. Simultaneously, the reflux-discharge interlock unit initiates backflow to prevent pressure overload. Vacuuming continues until no air is introduced, and then pressing resumes. The venting and weighing processes of the paste pressing process are interlocked, effectively controlling both venting and metering, eliminating the problem of paste exploding due to air intrusion. This system is applicable in the industrial production of pastes such as glue. The vacuum-discharge interlock unit can use a vacuum sensor for measurement feedback.

[0032] Example 2

[0033] like Figure 3 As shown, the rest is the same as Example 1, except that the lifting drive mechanism 6 includes a motor and a ball screw, the output end of the motor is coaxially connected to the screw rod 61 of the ball screw, and the nut 62 of the ball screw is connected to the pressing disc 3.

[0034] This embodiment converts the rotational motion of the motor into the lifting motion of the nut, thereby driving the pressing disc to move up and down. By matching the grooves of the pressing disc with the ridges of the storage cylinder, there is no need for additional guides or auxiliary equipment, which simplifies the process.

[0035] Finally, it should be noted that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A paste pressing device, characterized in that, It includes a vacuum pump (1), a vacuum regulating valve (2), a pressure feeding disc (3), a film (4), a material storage cylinder (5), a lifting drive mechanism (6), a discharge ball valve (7), a filter (8), a discharge regulating valve (9), an electronic scale (11), a packaging barrel (12), and a reflux regulating valve (13). The vacuum pump (1) is connected to the pressure feeding disc (3) through the vacuum regulating valve (2). The film (4) is pressed on the paste in the material storage cylinder (5). The pressure feeding disc (3) is arranged directly above the material storage cylinder (5) and is arranged to move up and down in the vertical direction. The output end of the lifting drive mechanism (6) is in transmission connection with the pressure feeding disc (3). The discharge ball valve (7) is connected to the bottom of the material storage cylinder (5). The discharge port of the discharge ball valve (7) is connected to the feed port of the filter (8). The discharge port of the filter (8) is connected to the feed port of the packaging barrel (12) through the discharge regulating valve (9). The discharge port of the filter (8) is also connected to the feed port of the discharge ball valve (7) through the reflux regulating valve (13). The packaging barrel (12) is arranged on the electronic scale (11).

2. The paste pressing device according to claim 1, characterized in that, An air extraction port communicating with the vacuum regulating valve (2) is formed on the upper surface of the pressure feeding disc (3), and at least one air suction hole (31) is formed on the lower surface of the pressure feeding disc (3). The air suction hole (31) communicates with the air extraction port.

3. The paste pressing device according to claim 2, wherein At least a pair of grooves (32) are arranged on the side wall of the pressure feeding disc (3) along its circumferential direction. Each pair of grooves (32) is located on the same diameter line, and a rib matching the groove (32) is vertically arranged on the inner wall of the material storage cylinder (5).

4. The paste pressing device according to claim 1, characterized in that, The lifting drive mechanism (6) is a driving cylinder, and the output end of the driving cylinder is connected to the pressure feeding disc (3) through a connecting rod.

5. The paste pressing device according to claim 1, wherein, The lifting drive mechanism (6) includes a motor and a ball screw. The output end of the motor is in coaxial transmission connection with the screw rod (61) of the ball screw, and the nut (62) of the ball screw is connected to the pressure feeding disc (3).

6. The paste pressing device according to claim 1, characterized in that A vacuum-discharge interlock unit (14) is arranged between the vacuum regulating valve (2) and the discharge ball valve (7). A pressure feeding-discharge interlock unit (15) is arranged between the lifting drive mechanism (6) and the computer control terminal (10). A weighing-discharge interlock unit (16) is arranged between the electronic scale (11) and the computer control terminal (10). A reflux-discharge interlock unit (17) is arranged between the reflux regulating valve (13) and the discharge regulating valve (9).

7. The paste pressing device according to claim 1, characterized in that, The volume range of the material storage cylinder (5) is 100 - 5000L, and the pipe diameter range of the vacuum regulating valve (2) is DN10 - 50.

8. The paste pressing device according to claim 1, characterized in that, The pipe diameter range of the discharge regulating valve (9) is DN10 - 50, and the pressure feeding flow rate range is 1 - 50 kg / min.

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