Feeding mechanism facilitating material barrel separation

Abstract

The utility model discloses a feeding mechanism capable of conveniently separating a material barrel, which comprises a feeding driving device, a feeding pump, a first gas conveying pipe used for breaking vacuum, a second gas conveying pipe used for being connected with a gas source and a gas pipe switch, one end of the first gas conveying pipe is arranged on a feeding base of the feeding pump and is communicated with the inside of the feeding base, and the other end of the first gas conveying pipe is connected with the gas source. The other end of the first gas pipe is connected with a bottom connector of the gas pipe switch, and one end of the second gas pipe is connected with a top connector of the gas pipe switch. When the feeding mechanism exhausts liquid silica gel raw materials in the material barrel or needs to be replaced with other material barrels, the air pipe switch can be turned on, the air source is started, and air can sequentially pass through the second air conveying pipe, the first air conveying pipe, the feeding base and the material pressing disc to enter the material barrel, so that the negative pressure state of the material barrel is relieved, and the feeding mechanism is conveniently separated from the material barrel; the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid silicone feeder technology, and more specifically, to a feeding mechanism that facilitates separation of the feed hopper. Background Technology

[0002] In the production process of liquid silicone, liquid silicone feeding equipment is generally required to transport and supply the liquid silicone, thereby injecting it into injection molding machines or other molding equipment. For example, a vertical liquid silicone feeding machine with a mixing head, authorized by publication number CN206357549U, includes a base, a control box, an A-component pressing and suction device, and a B-component pressing and suction device. When the material bucket is placed below the A-component pressing and suction device and the B-component pressing and suction device, the A-component pressing and suction device can suck up the liquid silicone raw material in the material bucket for mixing and feeding.

[0003] However, the A-component pressing and suction device and the B-component pressing and suction device of the liquid silicone feeder have the following shortcomings: Since both the A-component pressing and suction device and the B-component pressing and suction device use vacuum suction for feeding, when the liquid silicone raw material in the barrel is used up, there is a negative pressure in the barrel. Under the action of atmospheric pressure, the barrel is difficult to detach from the A-component pressing and suction device and the B-component pressing and suction device. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned defects in the prior art and provide a feeding mechanism that can relieve the negative pressure state of the material bucket and facilitate the separation of the material bucket.

[0005] To achieve the above objectives, this utility model provides a feeding mechanism for convenient separation of material barrels, including a feeding drive device and a feeding pump. The feeding drive device is connected to the feeding pump in a transmission manner. The lower end of the feeding pump is provided with a feeding base. The bottom of the feeding base is provided with a pressing plate. The middle of the pressing plate is provided with a pressing plate inlet that communicates with the interior of the feeding base. The outer ring of the pressing plate is provided with a pressing plate sealing ring. The feeding mechanism also includes a first gas supply pipe for breaking the vacuum, a second gas supply pipe for connecting to a gas source, and a gas pipe switch. One end of the first gas supply pipe is installed on the feeding base and communicates with its interior. The other end of the first gas supply pipe is connected to the bottom interface of the gas pipe switch. One end of the second gas supply pipe is connected to the top interface of the gas pipe switch.

[0006] Preferably, the feeding drive device is configured as a hydraulic cylinder, air cylinder, or oil cylinder.

[0007] Preferably, the feeding pump further includes an upper feeding outer cylinder, a lower feeding outer cylinder, a first one-way valve, a drive rod, a connecting rod, a suction piston, a first three-way connector, a discharge connector, a connector connecting pipe, and a second one-way valve. The lower end of the upper feeding outer cylinder is connected to the upper end of the lower feeding outer cylinder. The first one-way valve is connected between the lower end of the lower feeding outer cylinder and the feeding base. The upper end of the drive rod is connected to the output rod of the feeding drive device. The lower end of the drive rod extends into the interior of the upper and lower feeding outer cylinders. The lower end of the drive rod is connected to the upper end of the connecting rod. The lower end of the connecting rod can pass through the first one-way valve. The valve extends into the interior of the feed base. The suction piston is installed at the lower end of the connecting rod. The suction piston can move up and down inside the feed base and the first one-way valve. The discharge connector is installed at the lower end of the outer wall of the lower feed cylinder and communicates with the inner feeding cavity of the lower feed cylinder. The first three-way connector is installed on the outer wall of the upper feed cylinder. The first interface of the first three-way connector is communicated with the inner feeding cavity of the upper feed cylinder. The second interface of the first three-way connector is connected to the second one-way valve installed at the outlet of the discharge connector through the connector connecting pipe. The third interface of the first three-way connector is connected to the discharge pipe.

[0008] Preferably, the upper end of the upper feeding outer cylinder is provided with a mounting plate, and the feeding drive device is mounted on the mounting plate via a mounting bracket.

[0009] Preferably, the upper feeding outer cylinder and / or the lower feeding outer cylinder are provided with vent holes, and vent switches are provided at the vent holes.

[0010] Preferably, a second three-way connector is also connected between the third interface of the first three-way connector and the discharge pipe. The second three-way connector is equipped with a return switch, and a return pipe is connected between the bottom interface of the return switch and the feed base.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model has a novel structure and reasonable design. When the feeding mechanism has drained the liquid silicone raw material in the material barrel or needs to be replaced with another material barrel, the air pipe switch can be opened and the air source can be started. The gas can enter the material barrel in sequence through the second air supply pipe, the first air supply pipe, the feeding base and the pressing plate, thereby relieving the negative pressure state of the material barrel, facilitating the separation of the feeding mechanism from the material barrel and improving work efficiency.

[0013] 2. The feed pump of this utility model is equipped with a dual feed chamber. The drive rod can feed liquid silicone in both upward and downward movements, which greatly improves the feeding efficiency.

[0014] 3. The upper feeding outer cylinder and / or lower feeding outer cylinder of this utility model are equipped with an exhaust switch. Opening the exhaust switch can release excess air from the feeding chamber of the upper feeding outer cylinder and / or lower feeding outer cylinder, which is beneficial for feeding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the feeding mechanism provided in this embodiment of the utility model. Figure 1 ;

[0017] Figure 2 This is a schematic diagram of the feeding mechanism provided in this embodiment of the utility model. Figure 2 ;

[0018] Figure 3 This is a cross-sectional view of the feeding mechanism provided in an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram showing the cooperation between the feeding mechanism and the material bucket provided in this embodiment of the utility model. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] Please refer to Figure 1 and Figure 2 The present invention provides a feeding mechanism for convenient separation of material buckets, including a feeding drive device 1 and a feeding pump 2. The feeding drive device 1 and the feeding pump 2 are connected in a transmission manner. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0022] In this embodiment, the feeding drive device 1 can preferably be configured as a hydraulic cylinder, air cylinder or oil cylinder. Of course, other lifting drive devices can also be used according to actual needs.

[0023] like Figure 1 , Figure 2and Figure 3 As shown, the feeding pump 2 may include an upper feeding outer cylinder 21, a lower feeding outer cylinder 22, a first one-way valve 23, a feeding base 24, a pressure plate 25, a drive rod 26, a connecting rod 27, a suction piston 28, a first three-way connector 29, a discharge connector 210, a connector connecting pipe 211, and a second one-way valve 212. The lower end of the upper feeding outer cylinder 21 is connected to the upper end of the lower feeding outer cylinder 22. The first one-way valve 23 is connected between the lower end of the lower feeding outer cylinder 22 and the feeding base 24. The pressure plate 25 is installed at the bottom of the feeding base 24. The pressure plate 25 is circular. The middle part of the pressure plate 25 has a pressure plate inlet that communicates with the inside of the feeding base 24. The outer ring of the pressure plate 25 is provided with a pressure plate sealing ring 213.

[0024] The upper end of the drive rod 26 is connected to the output rod of the feeding drive device 1. The lower end of the drive rod 26 extends into the interior of the upper feeding outer cylinder 21 and the lower feeding outer cylinder 22. The lower end of the drive rod 26 is connected to the upper end of the connecting rod 27. The diameter of the upper part of the drive rod 26 is smaller than the diameter of the lower part of the drive rod 26. The lower end of the connecting rod 27 can pass through the first one-way valve 23 and extend into the interior of the feeding base 24. The suction piston 28 is installed at the lower end of the connecting rod 27. The suction piston 28 can move up and down inside the feeding base 24 and the first one-way valve 23. The discharge connector 210 is installed at the lower end of the outer wall of the lower feeding outer cylinder 22 and communicates with the feeding inner cavity 216 of the lower feeding outer cylinder 22.

[0025] The first three-way connector 29 is installed on the outer wall of the upper feeding outer cylinder 21. The first interface of the first three-way connector 29 is connected to the feeding inner cavity 215 of the upper feeding outer cylinder 21. The second interface of the first three-way connector 29 is connected to the second one-way valve 212 installed at the outlet of the discharge connector 210 through the connector connecting pipe 211. The third interface of the first three-way connector 29 is connected to the discharge pipe 3.

[0026] During specific installation, the upper end of the upper feeding outer cylinder 21 can be provided with a mounting plate 214, and the feeding drive device 1 is mounted on the mounting plate 214 through the mounting bracket 4.

[0027] like Figure 4As shown, when the pressing plate 25 of the feeding mechanism presses down on the liquid silicone raw material in the barrel, the liquid silicone in the barrel rises through the pressing plate inlet of the pressing plate 25 and enters the feeding base 24. When the feeding drive device drives the suction piston 28 to move upward, the suction piston 28 can transport the liquid silicone that has entered the feeding base 24 upward. After passing through the first one-way valve 23, the liquid silicone enters the feeding inner cavity 216 of the lower feeding outer cylinder 22. When the feeding drive device drives the drive rod 26 and the suction piston 28 to move downward, the first one-way valve 23 does not allow the liquid silicone to flow back downward. The drive rod 26 can squeeze the liquid silicone stored in the feeding inner cavity 216 of the lower feeding outer cylinder 22 out of the lower feeding outer cylinder 22. At this time, the liquid... A portion of the liquid silicone can flow sequentially through the discharge connector 210, the second one-way valve 212, the connector connecting pipe 211, and the first three-way connector 29 into the feeding inner cavity 215 of the upper feeding outer cylinder 21 for storage, while the other portion flows out to the discharge pipe 3. When the feeding drive device drives the drive rod 26 and the suction piston 28 to move upward again, the suction piston 28 continues to transport the liquid silicone that has entered the feeding base 24 upward. The drive rod 26 can squeeze the liquid silicone stored in the feeding inner cavity 215 of the upper feeding outer cylinder 21 out of the upper feeding outer cylinder 21. Due to the limiting effect of the second one-way valve 212, the liquid silicone stored in the feeding inner cavity 215 of the upper feeding outer cylinder 21 can only flow out to the discharge pipe 3, thus circulating.

[0028] The feed pump in this embodiment has dual feed chambers (i.e., feed chamber 215 and feed chamber 216). The drive rod can feed liquid silicone when it moves up and down, which greatly improves the feeding efficiency.

[0029] As a further improvement to this embodiment, such as Figure 1 and Figure 4 As shown, the feeding mechanism also includes a first gas supply pipe 8 for breaking the vacuum, a second gas supply pipe 9 for connecting to a gas source, and a gas pipe switch 10. One end of the first gas supply pipe 8 is mounted on the feeding base 24 and connected to its interior. The other end of the first gas supply pipe 8 is connected to the bottom interface of the gas pipe switch 10. One end of the second gas supply pipe 9 is connected to the top interface of the gas pipe switch 10.

[0030] In this embodiment, the air source can be the air supply device (such as an air pump) that comes with the liquid silica gel feeder, or other external air supply devices.

[0031] When the feeding mechanism has emptied the liquid silicone raw material in the material barrel or when it is necessary to replace it with another material barrel, the air pipe switch can be turned on and the air source can be started. The gas can enter the material barrel in sequence through the second air supply pipe, the first air supply pipe, the feeding base and the pressing plate, thereby relieving the negative pressure state of the material barrel, making it easier for the feeding mechanism to separate from the material barrel and improving work efficiency.

[0032] As a further improvement to this embodiment, such as Figure 2 As shown, the upper feeding outer cylinder 21 and the lower feeding outer cylinder 22 are respectively provided with exhaust holes, and exhaust switches 5 are provided at the exhaust holes.

[0033] When the exhaust switch 5 is opened, excess air in the feeding chamber 215 of the upper feeding outer cylinder 21 and the feeding chamber 216 of the lower feeding outer cylinder 22 can be discharged, which is beneficial for feeding.

[0034] Better, such as Figure 1 and Figure 2 As shown, a second three-way connector 11 can also be connected between the third interface of the first three-way connector 29 and the discharge pipe 20. The second three-way connector 11 is equipped with a return switch 6, and a return pipe 7 is connected between the bottom interface of the return switch 6 and the feed base 24.

[0035] When the return switch 6 is turned on, due to the negative pressure in the feed hopper after feeding, the liquid silicone raw material in the feed inner cavity 215 of the upper feed outer cylinder 21 and the feed inner cavity 216 of the lower feed outer cylinder 22 can be sucked back into the feed hopper through the return pipe 7.

[0036] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A feeding mechanism for convenient separation of material bins, comprising a feeding drive device and a feeding pump, wherein the feeding drive device is operatively connected to the feeding pump, the lower end of the feeding pump is provided with a feeding base, the bottom of the feeding base is provided with a pressing plate, the middle of the pressing plate is provided with a pressing plate inlet communicating with the interior of the feeding base, and the outer ring of the pressing plate is provided with a pressing plate sealing ring, characterized in that: It also includes a first gas supply pipe for breaking the vacuum, a second gas supply pipe for connecting to a gas source, and a gas pipe switch. One end of the first gas supply pipe is installed on the feed base and connected to its interior. The other end of the first gas supply pipe is connected to the bottom interface of the gas pipe switch. One end of the second gas supply pipe is connected to the top interface of the gas pipe switch.

2. The feeding mechanism for a convenient separation hopper according to claim 1, characterized in that: The feeding drive device is configured as a hydraulic cylinder, air cylinder, or oil cylinder.

3. The feeding mechanism for a convenient separation hopper according to claim 1, characterized in that: The feeding pump further includes an upper feeding outer cylinder, a lower feeding outer cylinder, a first one-way valve, a drive rod, a connecting rod, a suction piston, a first three-way connector, a discharge connector, a connector connecting pipe, and a second one-way valve. The lower end of the upper feeding outer cylinder is connected to the upper end of the lower feeding outer cylinder. The first one-way valve is connected between the lower end of the lower feeding outer cylinder and the feeding base. The upper end of the drive rod is connected to the output rod of the feeding drive device. The lower end of the drive rod extends into the interior of the upper and lower feeding outer cylinders. The lower end of the drive rod is connected to the upper end of the connecting rod. The lower end of the connecting rod can pass through the first one-way valve and extend into... Inside the feeding base, the suction piston is installed at the lower end of the connecting rod. The suction piston can move up and down inside the feeding base and the first one-way valve. The discharge connector is installed at the lower end of the outer wall of the lower feeding cylinder and communicates with the inner feeding cavity of the lower feeding cylinder. The first three-way connector is installed on the outer wall of the upper feeding cylinder. The first interface of the first three-way connector is communicated with the inner feeding cavity of the upper feeding cylinder. The second interface of the first three-way connector is connected to the second one-way valve installed at the outlet of the discharge connector through the connector connecting pipe. The third interface of the first three-way connector is connected to the discharge pipe.

4. The feeding mechanism for a convenient separation hopper according to claim 3, characterized in that: The upper end of the upper feeding outer cylinder is provided with a mounting plate, and the feeding drive device is mounted on the mounting plate through a mounting bracket.

5. The feeding mechanism for a convenient separation hopper according to claim 3, characterized in that: The upper feeding outer cylinder and / or the lower feeding outer cylinder are provided with vent holes, and vent switches are provided at the vent holes.

6. The feeding mechanism for a convenient separation hopper according to claim 3, characterized in that: A second three-way connector is also connected between the third interface of the first three-way connector and the discharge pipe. The second three-way connector is equipped with a return switch, and a return pipe is connected between the bottom interface of the return switch and the feed base.

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