Reciprocating piston pump set and glue mixing machine and glue spraying machine thereof

Abstract

The utility model relates to a reciprocating piston pump set and a glue mixing machine and a glue spraying machine thereof, the pump set comprises two feeding pumps, and the feeding pumps are reciprocating piston pumps; the feeding device is characterized in that the two feeding pumps are oppositely arranged, share a piston rod and do reciprocating motion along with the piston rod shared by the two feeding pumps, and the two feeding pumps supply materials alternately; the pump set further comprises a feeding pipeline and a discharging pipeline, the feeding pipeline is provided with two branch pipes, the two branch pipes of the feeding pipeline are connected with inlets of the two feeding pumps respectively, the discharging pipeline is provided with two branch pipes, and the two branch pipes of the discharging pipeline are connected with outlets of the two feeding pumps respectively. The structure of the pump set is simplified, continuous feeding can be achieved without control of a PLC, and errors are not prone to occurring.

Description

Technical Field

[0001] The utility model relates to glue mixing and glue spraying technology, in particular to a reciprocating piston pump group and a glue mixing machine and a glue spraying machine thereof. Background Art

[0002] When a single reciprocating piston pump is used as a feed pump, intermittent discharging is achieved because it needs to return once, and the feeding efficiency is low. To achieve continuous feeding, we designed and constructed a pump group (202222426309.X), which is fed by multiple reciprocating piston pumps. The PLC is used to control the operation of each pump, and the feeding and discharging of each pump are staggered to achieve continuous feeding. Utility Model Content

[0003] The utility model provides a reciprocating piston pump group and a glue mixer and glue spraying machine thereof. The structure of the pump group is simplified, and continuous and uninterrupted material feeding can be realized without PLC control, and errors are not easy to occur.

[0004] The technical solution of this utility model:

[0005] A reciprocating piston pump group includes two feed pumps, which are reciprocating piston pumps; the two feed pumps are arranged opposite to each other and share a piston rod; as the piston rod shared by the two feed pumps reciprocates, the two feed pumps feed alternately to achieve continuous and uninterrupted feeding.

[0006] The pump group also includes a feed pipeline and a discharge pipeline. The feed pipeline has two branches, which are respectively connected to the inlets of two feed pumps. The discharge pipeline has two branches, which are respectively connected to the outlets of two feed pumps.

[0007] One-way valves (inlet) are installed on the two branch pipes of the feed pipeline, and one-way valves (outlet) are also installed on the two branch pipes of the discharge pipeline.

[0008] Because the two feed pumps share a piston rod, only one drive structure is designed. The drive structure connects the piston rod shared by the two feed pumps and drives the piston rod shared by the two feed pumps to reciprocate, thereby reducing costs and making the overall structure reasonable and compact.

[0009] The driving structure is composed of a motor connected with a lead screw and a lead screw nut;

[0010] The lead screw of the driving structure serves as a piston rod shared by the two feed pumps, and its two ends respectively penetrate into the cylinder bodies of the two feed pumps and are connected with the pistons of the two feed pumps.

[0011] A filter is installed at the inlet of the feed pipeline to filter out impurities in the feed liquid.

[0012] A rubber mixer, wherein the feeding mechanism of the rubber mixer is the above-mentioned reciprocating piston pump group.

[0013] A glue spraying machine, wherein the feeding mechanism of the glue spraying machine is the above-mentioned reciprocating piston pump group. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of a glue mixer.

[0015] Figure 2 It is a schematic diagram of the glue spraying machine structure.

[0016] Figure 3 It is a schematic diagram of the structure of a reciprocating piston pump group.

[0017] Figure 4 It is a schematic diagram of the medium flow direction when the reciprocating piston pump group is in use.

[0018] In the figure, there are the feeding mechanism 1 of the glue mixer, the feeding mechanism 2 of the glue spraying machine, the compound piston pump group 3, the feeding pump 3-1, the feeding pump 3-2, the feeding pipeline 3-3, the discharging pipeline 3-4, the one-way valve (inlet) 3-5, the one-way valve (outlet) 3-6, the motor 3-7, the screw 3-8, and the filter 3-9. DETAILED DESCRIPTION Example

[0019] A rubber mixer, wherein the feeding mechanism 1 of the rubber mixer is a reciprocating piston pump group 3;

[0020] The pump group 3 includes a feed pump 3-1 and a feed pump 3-2, and the feed pump 3-1 and the feed pump 3-2 are reciprocating piston pumps; the feed pump 3-1 and the feed pump 3-2 are arranged opposite to each other, and the two share a piston rod; as the piston rod shared by the feed pump 3-1 and the feed pump 3-2 reciprocates, the feed pump 3-1 and the feed pump 3-2 feed alternately;

[0021] The pump group 3 also includes a feed pipeline 3-3 and a discharge pipeline 3-4. The feed pipeline 3-3 has two branches, and the two branches of the feed pipeline 3-4 are respectively connected to the inlets of the feed pump 3-1 and the feed pump 3-2. The discharge pipeline 3-4 has two branches, and the two branches of the discharge pipeline 3-5 are respectively connected to the outlets of the feed pump 3-1 and the feed pump 3-2.

[0022] One-way valves (inlet) 3-5 are installed on the two branch pipes of the feed pipeline 3-3, and one-way valves (outlet) 3-6 are also installed on the two branch pipes of the discharge pipeline 3-4;

[0023] A driving structure is connected to the piston rod shared by the feed pump 3-1 and the feed pump 3-2, and drives the piston rod shared by the feed pump 3-1 and the feed pump 3-2 to reciprocate;

[0024] The driving structure is composed of a motor 3-7 connected with a lead screw 3-8 and a lead screw nut;

[0025] The lead screw 3-8 of the driving structure is used as a piston rod shared by the feed pump 3-1 and the feed pump 3-2, and its two ends are respectively inserted into the cylinder bodies of the feed pump 3-1 and the feed pump 3-2 and connected to the pistons of the feed pump 3-1 and the feed pump 3-2;

[0026] A filter 3-9 is installed at the inlet of the feed pipeline 3-3. Example

[0027] A glue spraying machine, wherein the feeding mechanism 2 of the glue spraying machine is a reciprocating piston pump group 3;

[0028] The pump group 3 includes a feed pump 3-1 and a feed pump 3-2, and the feed pump 3-1 and the feed pump 3-2 are reciprocating piston pumps; the feed pump 3-1 and the feed pump 3-2 are arranged opposite to each other, and the two share a piston rod; as the piston rod shared by the feed pump 3-1 and the feed pump 3-2 reciprocates, the feed pump 3-1 and the feed pump 3-2 feed alternately;

[0029] The pump group 3 also includes a feed pipeline 3-3 and a discharge pipeline 3-4. The feed pipeline 3-3 has two branches, and the two branches of the feed pipeline 3-4 are respectively connected to the inlets of the feed pump 3-1 and the feed pump 3-2. The discharge pipeline 3-4 has two branches, and the two branches of the discharge pipeline 3-5 are respectively connected to the outlets of the feed pump 3-1 and the feed pump 3-2.

[0030] One-way valves (inlet) 3-5 are installed on the two branch pipes of the feed pipeline 3-3, and one-way valves (outlet) 3-6 are also installed on the two branch pipes of the discharge pipeline 3-4;

[0031] A driving structure is connected to the piston rod shared by the feed pump 3-1 and the feed pump 3-2, and drives the piston rod shared by the feed pump 3-1 and the feed pump 3-2 to reciprocate;

[0032] The driving structure is composed of a motor 3-7 connected with a lead screw 3-8 and a lead screw nut;

[0033] The lead screw 3-8 of the driving structure is used as a piston rod shared by the feed pump 3-1 and the feed pump 3-2, and its two ends are respectively inserted into the cylinder bodies of the feed pump 3-1 and the feed pump 3-2 and connected to the pistons of the feed pump 3-1 and the feed pump 3-2;

[0034] A filter 3-9 is installed at the inlet of the feed pipeline 3-3.

[0035] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A reciprocating piston pump assembly, the pump assembly comprising two feed pumps, the feed pumps being reciprocating piston pumps; characterized in that: The two feed pumps are arranged opposite to each other and share a piston rod; as the piston rod shared by the two feed pumps moves back and forth, the two feed pumps feed alternately.

2. A reciprocating piston pump assembly according to claim 1, characterized in that: The pump group also includes a feed pipeline and a discharge pipeline. The feed pipeline has two branches, which are respectively connected to the inlets of two feed pumps. The discharge pipeline has two branches, which are respectively connected to the outlets of two feed pumps.

3. A reciprocating piston pump assembly according to claim 2, characterized in that: One-way valves are installed on the two branch pipes of the feed pipeline, and one-way valves are also installed on the two branch pipes of the discharge pipeline.

4. A reciprocating piston pump assembly according to claim 1, characterized in that: A driving structure is connected to the piston rod shared by the two feed pumps to drive the piston rod shared by the two feed pumps to move back and forth.

5. A reciprocating piston pump assembly according to claim 4, characterized in that: The driving structure is composed of a motor connected with a lead screw and a lead screw nut; The lead screw of the driving structure serves as a piston rod shared by the two feed pumps, and its two ends respectively penetrate into the cylinder bodies of the two feed pumps and are connected with the pistons of the two feed pumps.

6. A reciprocating piston pump assembly according to claim 2, characterized in that: A filter is installed at the inlet of the feed pipeline.

7. A rubber mixer, characterized in that: The feeding mechanism of the rubber mixer is a reciprocating piston pump set as described in any one of claims 1 to 6.

8. A glue spraying machine, characterized in that: The feeding mechanism of the glue spraying machine is a reciprocating piston pump set as described in any one of claims 1 to 6.

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