Plunger type batching and conveying device

Abstract

The utility model provides a plunger type batching and conveying device which comprises a frame body, a connecting rod mechanism, a driving mechanism, a first plunger pump and a second plunger pump, the first plunger pump and the second plunger pump are both installed on the frame body, the first plunger pump is located in the side direction of the second plunger pump, the driving mechanism is arranged on the frame body, and the connecting rod mechanism is arranged on the frame body. The reciprocating driving end of the driving mechanism is connected with the second plunger pump, the first end of the connecting rod mechanism is hinged to the reciprocating driving end of the driving mechanism, the second end of the connecting rod mechanism is hinged to the frame body, and the connecting rod mechanism strides over the first plunger pump and is movably connected with the first plunger pump. The reciprocating driving end of the driving mechanism reciprocates to drive the second plunger pump to work in a first stroke, and meanwhile the connecting rod mechanism is driven to swing around the hinged axis of the frame body so as to drive the first plunger pump to work in a second stroke. The first plunger pump and the second plunger pump are controlled to conduct reciprocating pumping work, the reciprocating pumping stroke is not changed, and therefore the volume ratio of pumped materials is constant.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a plunger type batching and conveying device. Background Art

[0002] In the production process of existing emulsion explosives, it is necessary to strictly control the ratio of oil phase materials and water phase materials. When configuring in the factory, a delivery pump and a flow meter are often used for measurement control. The flow meter is electrically connected to the delivery pump, and the flow signal is fed back to the delivery pump to control the flow rate pumped by the delivery pump to maintain the set value. The oil phase material and the water phase material are respectively delivered by two sets of flow meters and delivery pumps, and the ratio is adjusted. However, this control method causes flow fluctuations when starting and stopping, which easily leads to uneven ratios of oil phase materials and water phase materials. The uneven ratio of oil phase materials and water phase materials will directly lead to the failure of the explosives to achieve the performance after emulsification, resulting in great waste. Secondly, the delivery pump and flow meter are costly, inconvenient to maintain, high maintenance cost, easy to fail, and bulky equipment, which is not convenient for miniaturization design and use. In particular, due to the complexity and bulkiness of the equipment, it is difficult to directly use the equipment on the on-site emulsification mixing vehicle.

[0003] In summary, there is an urgent need for a plunger-type batching and feeding device to solve or at least partially solve the problems existing in the prior art. Utility Model Content

[0004] The utility model aims to provide a plunger-type batching and feeding device, which aims to solve the problem that the existing technology uses a delivery pump and a flow meter to measure and control the flow rate, and the flow fluctuations during start-up and stop easily cause uneven proportioning. The specific technical solution is as follows:

[0005] A plunger-type batching and feeding device comprises a frame, a connecting rod mechanism, a driving mechanism, a first plunger pump and a second plunger pump. The first plunger pump and the second plunger pump are both installed on the frame, the first plunger pump is located to the side of the second plunger pump, the driving mechanism is arranged on the frame, the reciprocating driving end of the driving mechanism is connected to the second plunger pump, the first end of the connecting rod mechanism is hinged to the reciprocating driving end of the driving mechanism, the second end of the connecting rod mechanism is hinged to the frame, the connecting rod mechanism is arranged across the first plunger pump and is movably connected to the first plunger pump, and the reciprocating driving end of the driving mechanism makes a reciprocating motion to drive the second plunger pump to work in a first stroke, while driving the connecting rod mechanism to swing around the hinge axis with the frame to drive the first plunger pump to work in a second stroke.

[0006] Furthermore, the connecting rod mechanism includes a first rod group, the first rod group includes a first connecting rod, a second connecting rod and a slider, one end of the first connecting rod is hinged on the frame, the other end of the first connecting rod is hinged to the first end of the second connecting rod, the second end of the second connecting rod is hinged to the driving mechanism, the second connecting rod is above the first plunger pump, the slider is movably arranged along the extension direction of the second connecting rod, and the slider is hinged to the first plunger pump.

[0007] Furthermore, the two first plunger pumps are arranged oppositely on both sides of the second plunger pump, and the connecting rod mechanisms are arranged in a one-to-one correspondence with the first plunger pumps.

[0008] Furthermore, the pump body end of the first plunger pump can be moved along the frame and is positionally connected to the frame.

[0009] Preferably, a plurality of workstations are arranged along the length direction of the frame, and the pump body end of the first plunger pump can be detachably connected to any workstation.

[0010] Preferably, a waist-shaped groove is arranged along the length direction of the frame, the pump body of the first plunger pump is slidably connected in the waist-shaped groove, and a fastener is arranged between the pump body of the first plunger pump and the frame to position the pump body of the first plunger pump at a certain position of the waist-shaped groove.

[0011] Preferably, a slider is provided on the second connecting rod, the slider is slidably and positionally connected to the second connecting rod, the plunger end of the first plunger pump is hinged on the slider, and the pump body end of the first plunger pump is hinged on the frame.

[0012] Furthermore, the driving mechanism is a reciprocating linear driving assembly to drive the connecting rod mechanism to swing back and forth.

[0013] Further, the first plunger pump is arranged in proportion to the inner diameter of the second plunger pump.

[0014] The application of the technical solution of the utility model has the following beneficial effects:

[0015] The reciprocating drive end of the driving mechanism drives the second plunger of the second plunger pump to reciprocate in a first stroke through reciprocating motion. At the same time, the reciprocating drive end of the driving mechanism drives the connecting rod mechanism to swing around the hinge axis with the frame body, thereby driving the first plunger of the first plunger pump to reciprocate in a second stroke, so that the amount of objects pumped by the first plunger pump and the second plunger pump each time is fixed, thereby ensuring that the amount pumped out by the first plunger pump and the second plunger pump is in a constant proportional relationship, the first plunger pump is used to pump oil-phase materials, and the second plunger pump is used to pump water-phase materials, thereby The ratio of the oil phase material and the water phase material can be precisely controlled to prevent an imbalance in the ratio of the oil phase material and the water phase material, which may lead to insufficient emulsification of the mixed emulsion explosive. In addition, when the first plunger pump and the second plunger pump are connected and arranged at different positions, the movement strokes of the first plunger pump and the second plunger pump will be different. When the inner diameters of the first plunger pump and the second plunger pump are the same, the longer the reciprocating movement stroke, the larger the volume of the material pumped by a single reciprocating movement. Therefore, the ratio of the materials pumped by the first plunger pump and the second plunger pump can be controlled by adjusting the relative positions of the first plunger pump and the second plunger pump with respect to the hinge point.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. Figure 1 and Figure 2 , the utility model is further described in detail. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 This is one of the overall structural schematic diagrams of a plunger-type batching and feeding device of the utility model;

[0019] Figure 2 This is the second schematic diagram of the overall structure of a plunger type batching and feeding device of the utility model.

[0020] Among them, 1. frame; 11. waist-shaped groove; 2. connecting rod mechanism; 21. first rod group; 211. first connecting rod; 212. second connecting rod; 213. slider; 3. driving mechanism; 4. first plunger pump; 5. second plunger pump. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below, and preferred embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] Research has found that during the actual construction process, the original metering control structure using a delivery pump and a flow meter is bulky. When the device is directly applied to the emulsion explosive mixing vehicle for on-site mixing, the volume occupied is too large, and the volume of the emulsion explosive mixing vehicle cannot be made smaller. Therefore, even if the emulsion explosive mixing vehicle is produced using the original delivery pump and flow meter, it is still not suitable for construction in tunnels or mines with smaller spaces.

[0024] Example:

[0025] See also Figure 1 and Figure 2 The present embodiment provides a plunger-type batching and feeding device, comprising a frame 1, a connecting rod mechanism 2, a driving mechanism 3, a first plunger pump 4 and a second plunger pump 5. The first plunger pump 4 and the second plunger pump 5 are both installed on the frame 1, the first plunger pump 4 is at the side of the second plunger pump 5, the driving mechanism 3 is arranged on the frame 1, the reciprocating driving end of the driving mechanism 3 is connected to the second plunger pump 5, the first end of the connecting rod mechanism 2 is hinged to the reciprocating driving end of the driving mechanism 3, the second end of the connecting rod mechanism 2 is hinged to the frame 1, the connecting rod mechanism 2 is arranged across the first plunger pump 4 and is movably connected to the first plunger pump 4, and the reciprocating driving end of the driving mechanism 3 performs reciprocating motion to drive the second plunger pump 5 to work in the first stroke, while driving the connecting rod mechanism 2 to swing around the hinge axis with the frame 1 to drive the first plunger pump 4 to work in the second stroke.

[0026] Specifically, the driving mechanism 3 is installed on the upper part of the frame 1 by using bolts, and the first plunger pump 4 and the second plunger pump 5 are installed on the lower part of the frame 1. The reciprocating driving end of the driving mechanism 3 is connected with the plunger end of the second plunger pump 5, and the second plunger pump 5 is directly driven by the driving mechanism 3 to perform pumping work; the driving mechanism 3 is connected to the plunger of the first plunger pump 4 through the connecting rod mechanism 2, and when the driving mechanism 3 drives the connecting rod mechanism 2 to move, it drives the plunger of the first plunger pump 4 to move, so that the first plunger pump 4 performs pumping work, and the first plunger pump 4 and the second plunger pump 4 are directly driven by the driving mechanism 3. The feed ends of the pumps 5 are arranged at the lower part of the first blocking pump and the second plunger pump 5. When the device is installed in a container that needs to pump materials, the material is sucked through the feed ports below the first plunger pump 4 and the second plunger pump 5, and pumped out from the upper part of the first plunger pump 4 and the second plunger pump 5, and transported to the receiving device. In addition, the feed ports at the lower parts of the first plunger pump 4 and the second plunger pump 5 can also be connected to feed hoses, which can extend to the bottom of the container containing the materials, so that the first plunger pump 4 and the second plunger pump 5 can completely pump out all the materials in the container.

[0027] It can be understood that the first plunger pump 4 is installed on the frame 1. When the driving mechanism 3 drives the connecting rod mechanism 2 to perform reciprocating motion, the connecting rod mechanism 2 drives the first plunger pump 4 to pump reciprocatingly once for each reciprocating motion. When the position of the first plunger pump 4 relative to the frame 1 is fixed, the volume of material pumped each time is constant; the second plunger pump 5 is fixed relative to the frame 1, so the volume of material pumped each time the second plunger pump 5 is reciprocated under the reciprocating drive of the driving mechanism 3 is also constant, thereby ensuring that the amounts pumped out by the first plunger pump 4 and the second plunger pump 5 are in a constant proportional relationship. In addition, the driving mechanism 3 and the connecting rod mechanism 2 simultaneously drive the first plunger pump 4 and the second plunger pump 5 to work simultaneously. Therefore, the ratio of the volume of the material pumped out by the first plunger pump 4 to the volume of the material pumped out by the second plunger pump 5 is constant at the same time during the start and stop stages. The first plunger pump 4 is used to pump the oil phase material, and the second plunger pump 5 is used to pump the water phase material, thereby accurately controlling the ratio of the oil phase material to the water phase material to prevent an imbalance in the ratio of the oil phase material to the water phase material, which may lead to insufficient emulsification of the mixed emulsion explosive. The ratio of the oil phase material to the water phase material of the emulsion explosive mixing vehicle is always maintained at a set value regardless of whether it is in the start stage, the stable operation stage or the stop stage. In addition, when the first plunger pump 4 and the second plunger pump 5 are connected and arranged at different positions, the movement strokes of the first plunger pump 4 and the second plunger pump 5 will be different. When the inner diameters of the first plunger pump 4 and the second plunger pump 5 are the same, the longer the reciprocating movement stroke, the larger the volume of the material pumped by a single reciprocating movement. Therefore, by adjusting the relative positions between the first plunger pump 4 and the second plunger pump 5 and the hinge point, the ratio of the materials pumped by the first plunger pump 4 and the second plunger pump 5 can be controlled. It should be noted that the control method structure of the first plunger pump 4, the second plunger pump 5, the connecting rod mechanism 2 and the driving mechanism 3 is simpler, and the plunger pump occupies a smaller volume, which is convenient for arrangement on the on-site explosive emulsification mixing vehicle. Secondly, no flow meter is required for cooperation, and the production and maintenance costs are lower.

[0028] Furthermore, the driving mechanism 3 is a reciprocating linear driving assembly to drive the connecting rod mechanism 2 to swing back and forth.

[0029] Specifically, the linear drive component is a cylinder, the cylinder body of the cylinder is mounted on the frame 1, the piston rod of the cylinder is hinged to the second connecting rod 212, and when the cylinder is extended and retracted, the piston rod of the cylinder performs reciprocating motion, driving the second connecting rod 212 to swing back and forth. In other embodiments, the linear drive component can also be a hydraulic cylinder, a screw slider 213 structure, or a crank slider 213 structure. When the linear drive component is a screw slider 213 structure, the screw seat is fixed on the frame 1, the screw is rotatably connected to the screw seat, the slider 213 is slidably connected to the screw seat and is threadedly connected to the screw, and the slider 213 is driven to slide back and forth along the screw seat by driving the screw to rotate forward and reversely, and the second connecting rod 212 is hinged to the slider 213 to drive the second connecting rod 212 to swing back and forth. When the linear drive mechanism 3 is a crank slider 213 structure, the slider 213 slides back and forth, and the second connecting rod 212 is hinged on the slider 213 , and the slider 213 drives the second connecting rod 212 to swing back and forth.

[0030] Further, the connecting rod mechanism 2 includes a first rod group 21, the first rod group 21 includes a first connecting rod 211, a second connecting rod 212 and a slider 213, one end of the first connecting rod 211 is hinged on the frame 1, the other end of the first connecting rod 211 is hinged to the first end of the second connecting rod 212, the second end of the second connecting rod 212 is hinged to the driving mechanism 3, the second connecting rod 212 is above the first plunger pump 4, the slider 213 is movably arranged along the extension direction of the second connecting rod 212, and the slider 213 is hinged to the first plunger pump 4. Specifically, the slider 213 is slidably connected to the second connecting rod 212, and the sliding direction is parallel to the length direction of the second connecting rod 212.

[0031] It can be understood that the driving mechanism 3 drives one end of the second connecting rod 212 to move back and forth, thereby driving the second connecting rod 212 and the first connecting rod 211 to swing. Because the driving mechanism 3 is a reciprocating linear driving component, when the reciprocating linear driving component drives the second connecting rod 212 to move, the hinge point where the second connecting rod 212 and the reciprocating linear driving component are hinged moves back and forth along the axis of the reciprocating linear driving component. Therefore, the movement of the second connecting rod 212 is not a pure swing, but a compound movement of movement and swing, which causes the hinge point of the second connecting rod 212 and the first connecting rod 211 to swing. During the process, it will move toward the axis direction away from the reciprocating linear drive component, and the first connecting rod 211 is provided to enable the movement to proceed smoothly, thereby preventing the second connecting rod 212 from getting stuck due to interference with the frame 1 and the drive component. That is, the first connecting rod 211 not only connects the second connecting rod 212, but also gives way to the second connecting rod 212. When the second connecting rod 212 moves toward the first plunger pump 4, the first connecting rod 211 swings toward the outside of the frame 1, giving way to the second connecting rod 212, so that the second connecting rod 212 can smoothly drive the first plunger pump 4 to perform reciprocating motion.

[0032] Furthermore, two first plunger pumps 4 are arranged on both sides of the second plunger pump 5 relatively, and the connecting rod mechanism 2 is arranged one-to-one with the first plunger pump 4. Specifically, the first plunger pump 4 and the connecting rod mechanism 2 are arranged on both sides of the second plunger pump 5, and the first plunger pumps 4 on both sides are respectively connected to the connecting rod mechanisms 2 on both sides, and the connecting rod mechanisms 2 on both sides are connected to the driving mechanism 3, and the connecting rod mechanisms 2 on both sides are driven to swing back and forth by the driving mechanism 3 at the same time. It should be noted that the first plunger pump 4 on one side is used to pump the oil phase material, and the first plunger pump 4 on the other side is used to pump the sensitizer. The mixing ratio between the water phase material, the oil phase material and the sensitizer can be accurately controlled by the two first plunger pumps 4 and the second plunger pump 5, so that the mixed emulsification can proceed smoothly.

[0033] Furthermore, the pump body end of the first plunger pump 4 can be moved along the frame 1 and is positionally connected to the frame 1. It can be understood that by moving the pump body of the first plunger pump 4 along the length direction of the frame 1, the distance between the first plunger pump 4 and the hinge point of the connecting rod mechanism 2 and the frame 1 becomes longer, and the longer the stroke of the reciprocating motion of the plunger in the first plunger pump 4 is pushed by the connecting rod mechanism 2 during the swinging process, the more material can be pumped by a single reciprocating motion when the diameter of the first plunger pump 4 remains unchanged.

[0034] Specifically, a waist groove 11 is arranged along the length direction of the frame 1, and the pump body of the first plunger pump 4 is slidably connected in the waist groove 11, and a fastener is arranged between the pump body of the first plunger pump 4 and the frame 1, so as to position the pump body of the first plunger pump 4 at a certain position of the waist groove 11. It can be understood that in this embodiment, the fastener is a screw, and in other embodiments, the fastener can also be a bolt or other mechanism or component that can fix and position the first plunger pump 4 on the frame 1. When it is necessary to adjust the ratio of the materials pumped by the first plunger pump 4 and the second plunger pump 5, the fastener can be removed, and the first plunger pump 4 can be slid along the waist groove 11. When it slides to a certain set position, the first plunger pump 4 is fixed to the set position on the frame 1 by the fastener. At this time, the position of the first plunger pump 4 relative to the frame 1 changes, and the distance that the connecting rod mechanism 2 drives the plunger on the first plunger pump 4 to move back and forth also changes, thereby changing the material pumping amount of the first plunger pump 4 in a reciprocating stroke. When it is necessary to increase the pumping volume of the first plunger pump 4 in a single reciprocating motion, the first plunger pump 4 is moved away from the hinge point between the connecting rod mechanism 2 and the frame 1 arranged corresponding to the first plunger pump 4, and when it is necessary to reduce the pumping volume of the first plunger pump 4 in a single reciprocating motion, it is moved in the opposite direction. The first plunger pump 4 can be positioned at any position of the waist-shaped groove 11, so the amount of material pumped by the first plunger pump 4 in a single reciprocating motion can be infinitely adjusted.

[0035] Furthermore, the internal diameters of the first plunger pump 4 and the second plunger pump 5 are arranged in proportion. It can be understood that when the reciprocating distances of the first plunger pump 4 and the second plunger pump 5 are the same, the volume of material discharged by a single reciprocating motion of the first plunger pump 4 and the second plunger pump 5 is related to the diameters of the first plunger pump 4 and the second plunger pump 5, and the larger the diameter, the larger the volume of material discharged by a single reciprocating motion. When the material ratio requirement cannot be met by adjusting the relative position of the first plunger pump 4 and the frame 1, the relative diameters of the first plunger pump 4 and the second plunger pump 5 are changed to control the material pumped by the first plunger pump 4 and the second plunger pump 5 within a set range. Specifically, the ratio of the diameter of the first plunger pump 4 to the diameter of the second plunger pump 5 is 1 to 1 or 2 to 1, or other ratios.

[0036] In another embodiment of the present application, a plurality of workstations are arranged along the length direction of the frame 1, and the pump body end of the first plunger pump 4 can be detachably connected to any workstation. It can be understood that when it is necessary to adjust the volume ratio of the materials discharged by the first plunger pump 4 and the second plunger pump 5, the first plunger pump 4 is located at a suitable workstation by adjusting the relative position of the first plunger pump 4 and the frame 1, so that the volume ratio of the materials discharged between the first plunger pump 4 and the second plunger pump 5 is within a set range.

[0037] In another embodiment of the present application, the connecting rod mechanism 2 includes a first rod group 21, the first rod group 21 includes a first connecting rod 211, a second connecting rod 212 and a slider 213, one end of the first connecting rod 211 is hinged on the frame 1, the other end of the first connecting rod 211 is hinged to the first end of the second connecting rod 212, the second end of the second connecting rod 212 is hinged to the driving mechanism 3, the second connecting rod 212 is above the first plunger pump 4, the slider 213 is slidably and positionally connected to the second connecting rod 212, the plunger end of the first plunger pump 4 is hinged to the slider 213, and the pump body end of the first plunger pump 4 is hinged to the frame 1. Specifically, the slider 213 is positioned and connected to the second connecting rod 212 by screws. When the relative position of the slider 213 and the second connecting rod 212 needs to be adjusted, the screws are loosened, the slider 213 is slid to the set position, and the slider 213 is repositioned by tightening the screws. It can be understood that when the driving mechanism 3 drives the connecting rod mechanism 2 to swing back and forth, the positions of the slider 213 and the second connecting rod 212 are fixed. During the operation of the first plunger pump 4, the slider 213 swings with the second connecting rod 212 and pulls the plunger in the first plunger pump 4 to move. During the movement, the pump body of the first plunger pump 4 swings around the hinge point between the first plunger pump 4 and the frame 1. When it is necessary to adjust the volume of the material pumped by the single reciprocating movement of the plunger of the first plunger pump 4, the screw used for positioning the slider 213 is loosened, the slider 213 is slid to the position set by the second connecting rod 212, and the screw is tightened again. At this time, the position of the slider 213 on the second connecting rod 212 changes. When the second connecting rod 212 drives the plunger of the first plunger pump 4 to move through the slider 213, the stroke of the reciprocating motion of the plunger changes. The closer the slider 213 is to the first connecting rod 211 after adjustment, the smaller the volume of the material discharged by the single reciprocating movement of the plunger of the first plunger pump 4, and vice versa. Thus, by adjusting the relative position of the slider 213 on the second connecting rod 212, the ratio of the material discharged by the first plunger pump 4 and the second plunger pump 5 is adjusted to ensure that the ratio of the material pumped by the first plunger pump 4 and the second plunger pump 5 is within the set range, so that the emulsified explosive can proceed smoothly during the emulsification process.

[0038] The working principle of the technical solution of the utility model is as follows:

[0039] The reciprocating driving end of the driving mechanism 3 drives the second plunger of the second plunger pump 5 to reciprocate in a first stroke, and at the same time, the reciprocating driving end of the driving mechanism 3 drives the connecting rod mechanism 2 to swing around the hinge axis with the frame 1, thereby driving the first plunger of the first plunger pump 4 to reciprocate in a second stroke, so that the amount of objects pumped by the first plunger pump 4 and the second plunger pump 5 each time is fixed, thereby ensuring that the amount pumped by the first plunger pump 4 and the second plunger pump 5 is in a constant proportional relationship, the first plunger pump 4 is used to pump oil phase materials, and the second plunger pump 5 is used to pump water phase materials, so as to achieve The ratio of the oil phase material and the water phase material is precisely controlled to prevent an imbalance in the ratio of the oil phase material and the water phase material, which may lead to insufficient emulsification of the mixed emulsion explosive; in addition, when the first plunger pump 4 and the second plunger pump 5 are connected and arranged at different positions, the movement strokes of the first plunger pump 4 and the second plunger pump 5 will be different. When the inner diameters of the first plunger pump 4 and the second plunger pump 5 are the same, the longer the reciprocating movement stroke, the larger the volume of the material pumped by a single reciprocating movement. Therefore, the ratio of the materials pumped by the first plunger pump 4 and the second plunger pump 5 is controlled by adjusting the relative positions between the first plunger pump 4 and the second plunger pump 5 and the hinge point.

[0040] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A plunger type batching and feeding device, characterized in that: The invention comprises a frame (1), a connecting rod mechanism (2), a driving mechanism (3), a first plunger pump (4) and a second plunger pump (5), wherein the first plunger pump (4) and the second plunger pump (5) are both mounted on the frame (1), and the first plunger pump (4) is located to the side of the second plunger pump (5). The driving mechanism (3) is arranged on the frame (1), the reciprocating driving end of the driving mechanism (3) is connected to the second plunger pump (5), the first end of the connecting rod mechanism (2) is hinged to the reciprocating driving end of the driving mechanism (3), the second end of the connecting rod mechanism (2) is hinged to the frame (1), the connecting rod mechanism (2) is arranged across the first plunger pump (4) and is movably connected to the first plunger pump (4), The reciprocating drive end of the driving mechanism (3) drives the second plunger pump (5) to work in the first stroke by reciprocating motion, while driving the connecting rod mechanism (2) to swing around the hinge axis with the frame (1) to drive the first plunger pump (4) to work in the second stroke.

2. A plunger type batching and feeding device according to claim 1, characterized in that: The connecting rod mechanism (2) comprises a first rod group (21), the first rod group (21) comprises a first connecting rod (211), a second connecting rod (212) and a sliding block (213), one end of the first connecting rod (211) is hinged on the frame (1), the other end of the first connecting rod (211) is hinged to the first end of the second connecting rod (212), and the second end of the second connecting rod (212) is hinged to the driving mechanism (3), The second connecting rod (212) is located above the first plunger pump (4), the sliding block (213) is movably arranged along the extension direction of the second connecting rod (212), and the sliding block (213) is hinged to the first plunger pump (4).

3. A plunger type batching and feeding device according to claim 2, characterized in that: The two first plunger pumps (4) are arranged oppositely on both sides of the second plunger pump (5). The connecting rod mechanism (2) and the first plunger pump (4) are arranged in a one-to-one correspondence.

4. A plunger type batching and feeding device according to any one of claims 1 to 3, characterized in that: The pump body end of the first plunger pump (4) can move along the frame (1) and is connected to the frame (1) in a positionable manner.

5. A plunger type batching and feeding device according to claim 4, characterized in that: A plurality of workstations are arranged along the length direction of the frame (1), and the pump body end of the first plunger pump (4) can be detachably connected to any of the workstations.

6. A plunger type batching and feeding device according to claim 4, characterized in that: A waist-shaped groove (11) is arranged along the length direction of the frame (1), and the pump body of the first plunger pump (4) is slidably connected in the waist-shaped groove (11), and a fastener is arranged between the pump body of the first plunger pump (4) and the frame (1) to position the pump body of the first plunger pump (4) at a certain position of the waist-shaped groove (11).

7. The plunger type batching and feeding device according to claim 1, characterized in that: The connecting rod mechanism (2) comprises a first rod group (21), the first rod group (21) comprises a first connecting rod (211), a second connecting rod (212) and a sliding block (213), one end of the first connecting rod (211) is hinged on the frame (1), the other end of the first connecting rod (211) is hinged to the first end of the second connecting rod (212), and the second end of the second connecting rod (212) is hinged to the driving mechanism (3), The second connecting rod (212) is located above the first plunger pump (4), the slider (213) is slidably and positionally connected to the second connecting rod (212), the plunger end of the first plunger pump (4) is hinged to the slider (213), and the pump body end of the first plunger pump (4) is hinged to the frame (1).

8. A plunger type batching and feeding device according to any one of claims 1 to 3, characterized in that: The driving mechanism (3) is a reciprocating linear driving component, which drives the connecting rod mechanism (2) to swing back and forth.

9. A plunger type batching and feeding device according to any one of claims 1 to 3, characterized in that: The first plunger pump (4) is arranged in proportion to the inner diameter of the second plunger pump (5).

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