A reciprocating piston pump and bowl

Abstract

The utility model belongs to pump body technical field, specifically discloses a reciprocating piston pump and material jar, including having the pump body of chamber, piston and two oil cylinders, the piston is set up in the chamber and will the chamber is divided into two material cavities, the pump body is set up with a feed port and two discharge ports, two discharge ports correspond to two material cavities, and two discharge ports are mirror image symmetry with feed port as the center, two oil cylinders are installed in the both ends of pump body, and the output shaft of two oil cylinders is connected with the both ends of piston through piston rod respectively. The chamber is divided into two material cavities through the piston set up in the chamber, and the piston is driven in turn with the help of two oil cylinders, realizes the reciprocating movement of piston, thereby divides the material that comes from feed port into two material cavities in turn, discharges from two discharge ports corresponding to two material cavities, makes the reciprocating movement of piston can reach the effect of discharging from two discharge ports, thereby speeds up the discharge speed, satisfies the requirement of fast production.

Description

Technical Field

[0001] This utility model relates to the field of pump technology, and in particular to a reciprocating piston pump and a feed cylinder. Background Technology

[0002] The material tank is generally used to store the reacted materials. When the materials are needed, pressure is applied to force the materials out of the material tank's outlet so that they flow into other reaction vessels.

[0003] Currently, in order to accurately control the output, a pump needs to be installed at the discharge port of the material cylinder to control the amount of material discharged.

[0004] The current pump body has only one inlet and one outlet, which results in a relatively slow discharge speed, making it difficult to meet the requirements of rapid production. Utility Model Content

[0005] In order to overcome the defects of the existing technology, this utility model provides a reciprocating piston pump and a material cylinder.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a reciprocating piston pump, including a pump body with a chamber, a piston and two oil cylinders. The piston is movably disposed in the chamber and divides the chamber into two material chambers. The pump body has an inlet and two outlets. The two outlets correspond to the two material chambers and are mirror-symmetrical about the inlet. The two oil cylinders are installed at both ends of the pump body, and the output shafts of the two oil cylinders are respectively connected to the two ends of the piston through piston rods.

[0007] As a further embodiment, a first annular groove is provided on the outer side wall of the piston, and an O-ring is provided in the first annular groove. The O-ring is in movable engagement with the inner walls of the two material cavities.

[0008] As a further embodiment, the two piston rods are connected to the piston via a connector, the connector passing through a through hole on the piston and fixed to the piston, one end of each of the two piston rods being nested at both ends of the connector, and the end faces of one end of each of the two piston rods abutting against the end faces of both ends of the piston.

[0009] As a further embodiment, a second annular groove is provided in the middle of the connector, and a fixing sealing ring is provided in the second annular groove, the fixing sealing ring abutting against the inner wall of the through hole.

[0010] As a further embodiment, guide sleeves are provided on both end walls of the pump body, and the piston rod passes through the guide sleeves and is movably engaged with the guide sleeves.

[0011] As a further embodiment, the inner wall of the guide sleeve is provided with multiple third annular grooves, and a movable sealing ring is provided in the third annular groove, which is in movable cooperation with the piston rod.

[0012] As a further embodiment, one end of the guide sleeve is placed inside the cavity, and the guide sleeves on both end walls of the pump body are of the same length inside the cavity along the axial direction of the guide sleeve.

[0013] As a further embodiment, the discharge port is located below the guide sleeve.

[0014] As a further solution, the cylinder is equipped with a positioning sensor, and the end of the piston rod away from the piston is equipped with a light-shielding plate that cooperates with the positioning sensor.

[0015] This utility model also provides a material cylinder, including the above-mentioned reciprocating piston pump, and further including a frame, a cylinder body, a pressing plate and a pressing oil cylinder. The cylinder body and the pressing oil cylinder are both mounted on the frame. The output shaft of the pressing oil cylinder is connected to the pressing plate. The pressing plate is placed in the cylinder body. The bottom of the cylinder body is provided with a feeding end and a discharging end. The feeding port of the reciprocating piston pump is installed at the discharging end of the cylinder body.

[0016] One of the beneficial effects of this utility model is:

[0017] 1. This utility model uses a piston that is movably installed in the chamber to divide the chamber into two material chambers. With the help of two hydraulic cylinders driving the piston in sequence, the piston moves back and forth, thereby dividing the material entering from the feed port into the two material chambers and then discharging it from the two discharge ports corresponding to the two material chambers. This allows the reciprocating movement of the piston to achieve the effect of discharging from two discharge ports in one cycle, thereby speeding up the discharge speed and meeting the requirements of rapid production. Attached Figure Description

[0018] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0019] Figure 2 This is a cross-sectional schematic diagram of Embodiment 1 of the present utility model;

[0020] Figure 3 for Figure 2 Enlarged view of point A in the image;

[0021] Figure 4 This is a perspective view (a) of Embodiment 2 of the present invention;

[0022] Figure 5 This is a perspective view (II) of Embodiment 2 of this utility model.

[0023] In the diagram, 1-pump body, 11-chamber, 111-material chamber, 12-feed inlet, 13-discharge outlet, 2-piston, 21-first annular groove, 22-O-ring, 3-cylinder, 4-piston rod, 41-connector, 411-second annular groove, 412-fixed sealing ring, 5-guide sleeve, 51-third annular groove, 52-movable sealing ring, 6-position sensor, 61-light shield, 7-frame, 8-cylinder body, 81-feed end, 82-discharge end, 9-pressing plate, 10-pressing cylinder. Detailed Implementation

[0024] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0025] Example 1

[0026] As attached Figure 1-3 As shown, this embodiment provides a reciprocating piston pump, including a pump body 1 with a chamber 11, a piston 2, and two hydraulic cylinders 3. The piston 2 is movably disposed within the chamber 11 and divides the chamber 11 into two material chambers 111. The pump body 1 has a feed inlet 12 and two discharge outlets 13. Specifically, the feed inlet 12 is located at the top of the pump body 1 in the middle position, while the two discharge outlets 13 are located at the bottom of the pump body 1 at the left and right ends. The two discharge outlets 13 correspond to the two material chambers 111, and the two discharge outlets 13 are mirror-symmetrical about the feed inlet 12. The two hydraulic cylinders 3 are installed at both ends of the pump body 1, and the output shafts of the two hydraulic cylinders 3 are respectively connected to both ends of the piston 2 through piston rods 4. The output shafts of the two hydraulic cylinders 3 are respectively connected and fixed to the two piston rods 4, and the two piston rods 4 are respectively connected and fixed to both ends of the piston 2.

[0027] This invention uses a piston 2 movably disposed within the chamber 11 to divide the chamber 11 into two material chambers 111. With the sequential drive of two hydraulic cylinders 3, the piston 2 reciprocates, thereby distributing the material entering from the feed inlet 12 into the two material chambers 111 and then discharging it from the two discharge outlets 13 corresponding to the two material chambers 111. This allows a single reciprocating movement of the piston 2 to achieve the effect of discharging material from both discharge outlets 13, thus accelerating the discharge speed and meeting the requirements of rapid production.

[0028] Further details are attached. Figure 3 As shown, a first annular groove 21 is provided on the outer side wall of the piston 2, and an O-ring 22 is provided in the first annular groove 21. The O-ring 22 is in movable cooperation with the inner wall of the two material chambers 111 to achieve the effect of movable sealing.

[0029] In some embodiments, as shown in the appendix Figure 3 As shown, two piston rods 4 are connected to piston 2 via connecting members 41, specifically, the connecting members 41 are columnar. The connecting members 41 pass through a through hole in piston 2 and are fixed to piston 2. One end of each of the two piston rods 4 is nested and fixed to both ends of the connecting members 41, thus connecting and fixing the piston rods 4 to the connecting members 41. Furthermore, one end face of each of the two piston rods 4 abuts against the two end faces of piston 2, thereby reducing material seepage into the connection gap between the piston rods 4 and piston 2.

[0030] In addition, as a further improvement, see attached... Figure 3 As shown, a second annular groove 411 is provided in the middle of the connecting member 41, and a fixed sealing ring 412 is provided in the second annular groove 411. The fixed sealing ring 412 is used to keep the relative position between the connecting member 41 and the piston 2 unchanged. The fixed sealing ring 412 abuts against the inner wall of the through hole, thereby preventing the material in one material chamber 111 from seeping into the other material chamber 111 through the gap between the piston 2 and the connecting member 41, and ensuring that the output of the two outlets 13 is uniform.

[0031] In some embodiments, as shown in the appendix Figure 2-3 As shown, guide sleeves 5 are provided on both end walls of the pump body 1. The piston rod 4 passes through the guide sleeves 5 and is movably engaged with them, which guides the piston rod 4 and reduces force loss. Similarly, multiple third annular grooves 51 are formed on the inner wall of the guide sleeves 5. Movable sealing rings 52 are provided in the third annular grooves 51, and the movable sealing rings 52 are movably engaged with the piston rod 4. The movable sealing rings 52 are used to seal the piston rod 4 when it is in relative motion with the guide sleeves 5, providing a sealing effect during movement.

[0032] Additionally, as attached Figure 2-3 As shown, one end of the guide sleeve 5 is placed inside the chamber 11. In the axial direction of the guide sleeve 5, the guide sleeves 5 on both ends of the pump body 1 have the same length in the chamber 11. That is, the distance between the piston 2 and the guide sleeves 5 on both ends of the pump body 1 is the same, thereby ensuring that the piston 2 has the same stroke in the two material chambers 111 and ensuring that the discharge amount of the two discharge ports 13 is consistent.

[0033] The discharge port 13 is located below the guide sleeve 5, which allows the piston 2 to move sufficiently in the material chamber 111.

[0034] As attached Figure 2-3 As shown, the hydraulic cylinder 3 is equipped with a position sensor 6, and the end of the piston rod 4 away from the piston 2 is equipped with a light-shielding plate 61 that cooperates with the position sensor 6. The position sensor 6 and the light-shielding plate 61 cooperate to accurately measure the movement of the piston rod 4, ensuring that the discharge volume of the two discharge ports 13 is consistent.

[0035] Compared to traditional gear pumps, which generate heat during meshing and cannot discharge under vacuum, this reciprocating piston pump offers superior sealing. It can be used for discharging and packaging materials from mixers operating under vacuum, as well as from pressurized tanks, storage cylinders, and metering cylinders. This ensures minimal material temperature rise and guarantees the designed discharge pressure. Traditional equipment often results in uneven feeding, excessively long mixing times, and high material temperatures. It also easily attracts airborne dust during feeding, leading to granular material formation. After processing, the material is pushed out of the cylinder and packaged using a press, but the inclusion of air causes some material to crust, affecting quality and making accurate metering difficult.

[0036] Example 2

[0037] As attached Figure 4-5 As shown, this embodiment provides a material cylinder, including the aforementioned reciprocating piston pump, and further including a frame 7, a cylinder body 8, a pressing plate 9, and a pressing cylinder 10. Both the cylinder body 8 and the pressing cylinder 10 are mounted on the frame 7. The output shaft of the pressing cylinder 10 is connected to the pressing plate 9, which is placed inside the cylinder body 8. The bottom of the cylinder body 8 has an inlet end 81 and an outlet end 82. The inlet 12 of the reciprocating piston pump is installed at the outlet end 82 of the cylinder body 8. The pressing cylinder 10 drives the pressing plate 9, pressing the material in the cylinder body 8 into the reciprocating piston pump.

[0038] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A reciprocating piston pump, characterized in that: The pump body (1) includes a chamber (11), a piston (2), and two cylinders (3). The piston (2) is movably disposed in the chamber (11) and divides the chamber (11) into two material chambers (111). The pump body (1) has an inlet (12) and two outlets (13). The two outlets (13) correspond to the two material chambers (111), and the two outlets (13) are mirror-symmetrical about the inlet (12). The two cylinders (3) are installed at both ends of the pump body (1), and the output shafts of the two cylinders (3) are connected to the two ends of the piston (2) through piston rods (4).

2. The reciprocating piston pump according to claim 1, characterized in that: The piston (2) has a first annular groove (21) on its outer side wall, and an O-ring (22) is provided in the first annular groove (21). The O-ring (22) is in movable cooperation with the inner walls of the two material cavities (111).

3. The reciprocating piston pump according to claim 1, characterized in that: The two piston rods (4) are connected to the piston (2) through a connector (41). The connector (41) passes through a through hole on the piston (2) and is fixed on the piston (2). One end of each of the two piston rods (4) is nested in the two ends of the connector (41), and the end face of one end of each of the two piston rods (4) abuts against the end faces of the piston (2).

4. A reciprocating piston pump according to claim 3, characterized in that: The connector (41) has a second annular groove (411) in the middle, and a fixed sealing ring (412) is provided in the second annular groove (411). The fixed sealing ring (412) abuts against the inner wall of the through hole.

5. A reciprocating piston pump according to claim 1, characterized in that: Guide sleeves (5) are provided on both end walls of the pump body (1), and the piston rod (4) passes through the guide sleeves (5) and is movably engaged with the guide sleeves (5).

6. A reciprocating piston pump according to claim 5, characterized in that: The inner wall of the guide sleeve (5) has multiple third annular grooves (51), and a movable sealing ring (52) is provided in the third annular groove (51). The movable sealing ring (52) is in movable cooperation with the piston rod (4).

7. A reciprocating piston pump according to claim 5, characterized in that: One end of the guide sleeve (5) is placed inside the chamber (11). In the axial direction of the guide sleeve (5), the guide sleeves (5) on both end walls of the pump body (1) are of the same length placed inside the chamber (11).

8. A reciprocating piston pump according to claim 7, characterized in that: The discharge port (13) is located below the guide sleeve (5).

9. A reciprocating piston pump according to claim 1, characterized in that: The cylinder (3) is equipped with a position sensor (6), and the piston rod (4) is equipped with a light shield (61) that works in conjunction with the position sensor (6) at the end away from the piston (2).

10. A material cylinder, characterized in that: The reciprocating piston pump as described in any one of claims 1-9 further includes a frame (7), a cylinder (8), a pressure plate (9), and a pressure cylinder (10). The cylinder (8) and the pressure cylinder (10) are both mounted on the frame (7). The output shaft of the pressure cylinder (10) is connected to the pressure plate (9). The pressure plate (9) is placed inside the cylinder (8). The bottom of the cylinder (8) is provided with a feed end (81) and a discharge end (82). The feed port (12) of the reciprocating piston pump is installed at the discharge end (82) of the cylinder (8).

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