Automatic dosing machine using pneumatic control diaphragm pump

Abstract

The utility model relates to an automatic dosing machine using a pneumatic control diaphragm pump, which belongs to the technical field of dosing equipment and comprises an L-shaped support, the pneumatic control diaphragm pump and a dosing nozzle. The pneumatic control diaphragm pump comprises a first diaphragm pump bin, a second diaphragm pump bin, an adjusting mechanism, a diaphragm and a pneumatic control assembly. The first diaphragm pump bin and the second diaphragm pump bin are connected through the adjusting mechanism, the pneumatic control assembly is arranged on the adjusting mechanism and used for driving the adjusting mechanism to change the expansion and contraction states of the diaphragms, and the two diaphragms are symmetrically arranged in the first diaphragm pump bin and the second diaphragm pump bin and connected through the adjusting mechanism. According to the automatic dosing machine adopting the scheme, the distance between the limiting sliding table and the sealing partition plate is changed through the pneumatic control assembly and the linkage control adjusting mechanism, the expansion amplitude of the diaphragm is precisely limited, and alternate quantitative medicine pumping is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dosing equipment technical field, especially related to a kind of automatic dosing machine of application pneumatic diaphragm pump. BACKGROUND

[0002] In the automatic dosing process in industrial and medical fields, the accuracy and continuity of quantitative dosing directly affect production efficiency and product quality. Traditional dosing equipment often uses plunger pump, peristaltic pump or ordinary diaphragm pump as conveying unit, but has the following technical defects:

[0003] 1. Insufficient quantitative accuracy: traditional pump body relies on mechanical limit or manual adjustment, which is prone to cause single pumping volume fluctuation due to mechanical wear or human error, and is difficult to meet the demand of high-precision dosing.

[0004] 2. High complexity of adjustment: the pumping volume adjustment of existing equipment is usually achieved by replacing parts or repeatedly adjusting mechanical structure, which is cumbersome and cannot dynamically adapt to different working condition requirements.

[0005] In recent years, some improvement schemes try to improve control accuracy through electronic sensors or servo motors, but have problems such as high cost, weak anti-interference ability (such as failure in electromagnetic interference environment) and so on. In addition, although pneumatic control has advantages such as cleanliness and explosion-proof, the existing pneumatic pump body still lacks precise linkage adjustment mechanism for diaphragm stroke, making it difficult to balance the demand for high precision and high reliability.

[0006] Therefore, there is an urgent need for an automatic dosing equipment with simple structure, convenient adjustment and high-precision continuous dosing to overcome the defects of inaccurate dosing and complex adjustment in the prior art. INVENTION CONTENTS

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an automatic dosing machine using pneumatic diaphragm pump, comprising: L-shaped support, pneumatic diaphragm pump, medicine injection nozzle;

[0008] The pneumatic diaphragm pump is fixedly installed on the L-shaped support, one end of the pneumatic diaphragm pump is communicated with the medicine storage bin, and the other end is connected with the medicine injection nozzle; the pneumatic diaphragm pump is used for quantitatively pumping medicine in the medicine storage bin and conveying to the medicine injection nozzle;

[0009] The pneumatic diaphragm pump comprises a base, the base is fixedly arranged on the L-shaped support, a three-hole water inlet channel is fixedly arranged on the base, two output ends of the three-hole water inlet channel are respectively fixedly connected with the input ends of the first diaphragm pump bin and the second diaphragm pump bin, and the input ends are communicated with the medicine storage bin; the output ends of the first diaphragm pump bin and the second diaphragm pump bin are respectively connected with the input ends of the three-hole water outlet channel, and the output end of the three-hole water outlet channel is communicated with the medicine injection nozzle;

[0010] The first diaphragm pump chamber and the second diaphragm pump chamber are connected through an adjusting mechanism, two diaphragms are symmetrically arranged on the adjusting mechanism and are respectively fixedly arranged in the first diaphragm pump chamber and the second diaphragm pump chamber;

[0011] A pneumatic control assembly is fixedly arranged on the adjusting mechanism.

[0012] As a further improvement of the utility model, the adjusting mechanism comprises:

[0013] A connecting pump chamber is fixedly and communicatively arranged between the first diaphragm pump chamber and the second diaphragm pump chamber, two sealing partitions are symmetrically and fixedly arranged in the connecting pump chamber, the connecting pump chamber and the two sealing partitions form a mechanical chamber, and a gear set is arranged in the mechanical chamber.

[0014] The input end of the gear set is connected with the pneumatic control assembly, the two output ends are coaxially provided with adjusting connecting rods, the adjusting connecting rods are slidingly and sealingly arranged on the sealing partitions, one end of the adjusting connecting rods is connected with the gear set, and the other end of the adjusting connecting rods is fixedly connected with the diaphragms.

[0015] As a further improvement of the utility model, the adjusting connecting rods comprise limiting sliding rods, the limiting sliding rods are coaxially and slidingly arranged on the output ends of the gear set, and sealing sliding platforms are fixedly arranged on the limiting sliding rods and slidingly and sealingly arranged on the sealing partitions.

[0016] One end of a lead screw is fixedly arranged on the sealing sliding platform, the other end of the lead screw is provided with a second bearing, a top platform is arranged on the second bearing, and the top platform is connected with the diaphragm.

[0017] As a further improvement of the utility model, a limiting sliding platform is arranged on the lead screw in a threaded and rotating mode, and the limiting sliding platform is slidingly arranged in the connecting pump chamber.

[0018] As a further improvement of the utility model, the gear set comprises:

[0019] A main bevel gear is rotatably arranged in the mechanical chamber and connected with the pneumatic control assembly.

[0020] Two auxiliary bevel gears are symmetrically and rotatably arranged in the mechanical chamber and meshed with the main bevel gear, the auxiliary bevel gears are provided with a plurality of limiting grooves at the shaft centers, and the limiting sliding rods are coaxially and slidingly sleeved in the auxiliary bevel gears through the limiting grooves.

[0021] As a further improvement of the utility model, the gear set further comprises a first bearing.

[0022] The limiting sliding rods of the two adjusting connecting rods are connected through the first bearing.

[0023] As further improvement of the utility model, the pneumatic control assembly comprises: pneumatic deployment bin, connecting pipeline, adjusting knob;

[0024] The pneumatic deployment bin is fixedly arranged on the connecting pump bin, two connecting pipelines are arranged on the pneumatic deployment bin, and the two connecting pipelines are communicated with the first diaphragm pump bin and the second diaphragm pump bin respectively.

[0025] The adjusting knob is rotationally arranged on the pneumatic deployment bin and is connected with the main bevel gear.

[0026] Compared with the prior art, the utility model has the beneficial effects that:

[0027] In the operation of intermittently adding medicine water in a fixed amount, according to the requirement of medicine water addition, the adjusting knob is rotated to drive the gear set, the gear set drives the limiting slide rod to rotate in the rotating process, the limiting slide rod rotates to synchronously rotate the lead screw, the lead screw changes the relative position of the limiting slide table in the rotating process, that is, changes the relative distance between the limiting slide table and the sealing partition plate, thereby affecting the expansion and contraction interval of the diaphragm, controlling the size of the medicine water pump, realizing the accurate control of the pump amount of medicine water each time, and improving the stability and continuity of the medicine injection of the medicine injection nozzle. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a whole schematic view of an automatic dosing machine applying a pneumatic control diaphragm pump.

[0029] Figure 2 It is a schematic view of a pneumatic control diaphragm pump of an automatic dosing machine applying a pneumatic control diaphragm pump.

[0030] Figure 3 It is a schematic view of an adjusting mechanism structure of an automatic dosing machine applying a pneumatic control diaphragm pump.

[0031] Figure 4 It is an enlarged schematic view of a gear set connection of an automatic dosing machine applying a pneumatic control diaphragm pump.

[0032] Figure 5 It is a schematic view of a gear set of an automatic dosing machine applying a pneumatic control diaphragm pump.

[0033] Figure 6 It is a schematic view of an adjusting connecting rod structure of an automatic dosing machine applying a pneumatic control diaphragm pump.

[0034] Figure 7 It is a schematic view of a pneumatic control assembly of an automatic dosing machine applying a pneumatic control diaphragm pump.

[0035] Wherein, 1, L-shaped support; 2, air control diaphragm pump; 21, base; 22, three-hole water inlet channel; 23, first diaphragm pump compartment; 24, diaphragm; 25, three-hole water outlet channel; 26, adjusting mechanism; 261, connecting pump compartment; 262, sealing partition; 263, adjusting connecting rod; 2631, limiting sliding rod; 2632, sealing sliding table; 2633, lead screw; 2634, second bearing; 2635, top table; 264, mechanical compartment; 265, limiting sliding table; 266, gear set; 2661, main bevel gear; 2662, auxiliary bevel gear; 2663, first bearing; 2664, limiting groove; 27, pneumatic control assembly; 271, pneumatic adjustment compartment; 272, connecting pipeline; 274, adjusting knob; 28, second diaphragm pump compartment; 3, medicine injection nozzle. DETAILED DESCRIPTION

[0036] Referring to Figures 1 to 7 The automatic dosing machine using air control diaphragm pump is characterized by comprising: L-shaped support 1, air control diaphragm pump 2, and medicine injection nozzle 3.

[0037] The air control diaphragm pump 2 is fixedly installed on the L-shaped support 1, one end of the air control diaphragm pump 2 is in communication with a medicine storage compartment, and the other end is connected with the medicine injection nozzle 3; the air control diaphragm pump 2 is used for quantitatively pumping medicine in the medicine storage compartment and delivering the medicine to the medicine injection nozzle 3.

[0038] The air control diaphragm pump 2 comprises a base 21, the base 21 is fixedly arranged on the L-shaped support 1, a three-hole water inlet channel 22 is fixedly arranged on the base 21, two output ends of the three-hole water inlet channel 22 are respectively fixedly connected with input ends of a first diaphragm pump compartment 23 and a second diaphragm pump compartment 28, the input ends are in communication with the medicine storage compartment; output ends of the first diaphragm pump compartment 23 and the second diaphragm pump compartment 28 are respectively connected with input ends of a three-hole water outlet channel 25, and an output end of the three-hole water outlet channel 25 is in communication with the medicine injection nozzle 3.

[0039] The first diaphragm pump compartment 23 and the second diaphragm pump compartment 28 are connected through an adjusting mechanism 26, two diaphragms 24 are symmetrically arranged on the adjusting mechanism 26, and the two diaphragms 24 are respectively sealingly and fixedly arranged in the first diaphragm pump compartment 23 and the second diaphragm pump compartment 28.

[0040] A pneumatic control assembly 27 is fixedly arranged on the adjusting mechanism 26.

[0041] The pneumatic control assembly 27 is started, and the diaphragm 24 in the first diaphragm pump chamber 23 and the second diaphragm pump chamber 28 is alternately contracted and expanded under the action of the adjusting mechanism 26. In the process of alternately contracting and expanding, the diaphragm 24 pumps the medicine in the storage chamber through the three-hole water inlet channel 22, and finally quantitatively delivers the medicine to the medicine injection nozzle 3 through the three-hole water outlet channel 25.

[0042] In the operation of intermittently adding medicine, according to the requirement of adding medicine, the adjusting mechanism 26 is adjusted by the pneumatic control assembly 27, so as to limit the contraction and expansion range of the diaphragm 24, that is, to accurately control the amount of medicine pumped by the first diaphragm pump chamber 23 and the second diaphragm pump chamber 28 each time.

[0043] As a preferred embodiment, the adjusting mechanism 26 comprises:

[0044] The connecting pump chamber 261 is fixedly connected between the first diaphragm pump chamber 23 and the second diaphragm pump chamber 28, two sealing partitions 262 are symmetrically and fixedly arranged in the connecting pump chamber 261, the two sealing partitions 262 and the connecting pump chamber 261 form a mechanical chamber 264, and a gear set 266 is arranged in the mechanical chamber 264.

[0045] The input end of the gear set 266 is connected with the pneumatic control assembly 27, both output ends are coaxially arranged with adjusting connecting rods 263, the adjusting connecting rods 263 are slidingly and sealingly arranged on the sealing partitions 262, one end is connected with the gear set 266, and the other end is fixedly connected with the diaphragm 24.

[0046] When adjusting the amount of medicine pumped by the first diaphragm pump chamber 23 and the second diaphragm pump chamber 28 each time, the pneumatic control assembly 27 drives the gear set 266 to rotate, the gear set 266 drives the adjusting connecting rod 263 to rotate, the adjusting connecting rod 263 changes the abutting position with the sealing partition 262 in the rotating process, so as to change the maximum expansion distance of the diaphragm 24, so as to control the size of the medicine pumping amount, realize the accurate control of the medicine pumping amount each time, and improve the stability and continuity of the medicine injection nozzle 3.

[0047] It should be noted that the gear set 266 and the adjusting connecting rod 263 are combined to control the expansion distance of the diaphragm 24 in the first diaphragm pump chamber 23 and the second diaphragm pump chamber 28, that is, to control the amount of medicine pumped each time.

[0048] As a preferred embodiment, the adjusting connecting rod 263 comprises a limiting sliding rod 2631, the limiting sliding rod 2631 is coaxially and slidingly arranged on the output end of the gear set 266; a sealing sliding table 2632 is fixedly arranged on the limiting sliding rod 2631, and the sealing sliding table 2632 is slidingly and sealingly arranged on the sealing partition 262;

[0049] One end of a screw rod 2633 is fixedly arranged on the sealing slide platform 2632, the other end of the screw rod 2633 is arranged with a second bearing 2634, and a top platform 2635 is arranged on the second bearing 2634, and the top platform 2635 is connected with the diaphragm 24.

[0050] A limiting slide platform 265 is arranged on the screw rod 2633 through threaded rotation connection, and the limiting slide platform 265 is slidingly arranged in the connecting pump chamber 261.

[0051] During rotation of the gear set 266, the limiting slide rod 2631 is driven to rotate, the limiting slide rod 2631 is rotated to synchronously rotate the screw rod 2633, and the screw rod 2633 changes the relative position of the limiting slide platform 265 during rotation, that is, changes the relative distance between the limiting slide platform 265 and the sealing partition plate 262, so as to affect the expansion and contraction interval of the diaphragm 24.

[0052] When the diaphragm 24 expands to pump the medicine, two adjusting connecting rods 263 are connected through the gear set 266, so that the diaphragm 24 in the second diaphragm pump chamber 28 is synchronously contracted to extrude and discharge the medicine in it, and finally the medicine in the second diaphragm pump chamber 28 is guided to the medicine injection nozzle 3 through the three-hole water outlet channel 25, and the automatic quantitative medicine injection work is completed by the medicine injection nozzle 3.

[0053] It should be noted that, during expansion of the diaphragm 24, the top platform 2635 is connected with the diaphragm 24, so that the limiting slide platform 265 synchronously slides in the connecting pump chamber 261 with the diaphragm 24. When the diaphragm 24 expands to a set amount of pumped medicine, the limiting slide platform 265 and the sealing partition plate 262 form an abutting state, thereby preventing the limiting slide platform 265 from continuing to slide, that is, preventing the diaphragm 24 from continuing to expand to pump the medicine.

[0054] As a preferred embodiment, the gear set 266 comprises:

[0055] A main bevel gear 2661 is rotationally arranged in the mechanical chamber 264 and connected with the pneumatic control assembly 27;

[0056] Two auxiliary bevel gears 2662 are symmetrically rotationally arranged in the mechanical chamber 264 and meshed with the main bevel gear 2661; the auxiliary bevel gear 2662 is coaxially slidingly sleeved in the auxiliary bevel gear 2662 through a plurality of limiting grooves 2664 formed in the axis of the auxiliary bevel gear 2662.

[0057] The gear set 266 further comprises a first bearing 2663;

[0058] The limiting slide rod 2631 of the two adjusting connecting rods 263 is connected through the first bearing 2663.

[0059] The main bevel gear 2661 rotates to drive the two secondary bevel gears 2662 to rotate, and the secondary bevel gears 2662 rotate synchronously with the limiting slide rod 2631 through the limiting groove 2664, that is, the relative distance between the limiting slide platform 265 and the sealing partition plate 262 is changed, so that the pumping amount of the medicine pump is accurately controlled.

[0060] When one of the diaphragms 24 expands (pumping medicine), the two adjusting connecting rods 263 synchronously make the other diaphragm 24 contract (delivering medicine) under the connection of the first bearing 2663.

[0061] The limiting groove 2664 cooperates with the limiting slide rod 2631 to realize the synchronous rotation state of the adjusting connecting rod 263 and the secondary bevel gear 2662, and also realizes the relative sliding between the adjusting connecting rod 263 and the secondary bevel gear 2662.

[0062] As a preferred embodiment, the pneumatic control assembly 27 comprises a pneumatic adjusting bin 271, a connecting pipeline 272 and an adjusting knob 274.

[0063] The pneumatic adjusting bin 271 is fixedly arranged on the connecting pump bin 261, two connecting pipelines 272 are arranged on the pneumatic adjusting bin 271, and the two connecting pipelines 272 are respectively communicated with the first diaphragm pump bin 23 and the second diaphragm pump bin 28.

[0064] The adjusting knob 274 is rotatably arranged on the pneumatic adjusting bin 271 and connected with the main bevel gear 2661, and rotating the adjusting knob 274 drives the main bevel gear 2661 to rotate, so that the relative distance between the limiting slide platform 265 and the sealing partition plate 262 is changed, thereby realizing the control of the expansion and contraction amplitude of the diaphragm 24, that is, the accurate control of the pumping and delivering amount of the medicine pump.

[0065] The pneumatic adjusting bin 271 delivers compressed gas to the first diaphragm pump bin 23 and the second diaphragm pump bin 28 through the connecting pipeline 272, so as to realize the contraction and expansion of the diaphragm 24.

[0066] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An automatic dosing machine using a pneumatically controlled diaphragm pump, characterized in that: include: L-shaped support (1), pneumatic diaphragm pump (2), injection nozzle (3); The pneumatic diaphragm pump (2) is fixedly installed on the L-shaped support (1). One end of the pneumatic diaphragm pump (2) is connected to the drug storage chamber, and the other end is connected to the injection nozzle (3). The pneumatic diaphragm pump (2) is used to pump out the drug in the drug storage chamber in a metering manner and deliver it to the injection nozzle (3). The pneumatically controlled diaphragm pump (2) includes a base (21), which is fixedly mounted on the L-shaped support (1). A three-hole water inlet channel (22) is fixedly mounted on the base (21). The two output ends of the three-hole water inlet channel (22) are respectively fixedly connected to the input ends of the first diaphragm pump chamber (23) and the second diaphragm pump chamber (28), and the input ends are connected to the drug storage chamber. The output ends of the first diaphragm pump chamber (23) and the second diaphragm pump chamber (28) are respectively connected to the input ends of the three-hole water outlet channel (25), and the output end of the three-hole water outlet channel (25) is connected to the drug injection nozzle (3). The first diaphragm pump chamber (23) and the second diaphragm pump chamber (28) are connected by an adjustment mechanism (26). Two diaphragms (24) are symmetrically arranged on the adjustment mechanism (26). The two diaphragms (24) are respectively sealed and fixed in the first diaphragm pump chamber (23) and the second diaphragm pump chamber (28). The pneumatic control assembly (27) is fixedly mounted on the adjustment mechanism (26).

2. An automatic dosing machine using a pneumatically controlled diaphragm pump according to claim 1, characterized in that: The adjustment mechanism (26) includes: A connecting pump chamber (261) is fixedly connected between the first diaphragm pump chamber (23) and the second diaphragm pump chamber (28). Two sealing partitions (262) are symmetrically and fixedly installed in the connecting pump chamber (261). The two sealing partitions (262) and the connecting pump chamber (261) constitute a mechanical chamber (264). A gear set (266) is installed in the mechanical chamber (264). The input end of the gear set (266) is connected to the pneumatic control component (27), and the two output ends are coaxially provided with adjusting rods (263). The sliding seal of the adjusting rod (263) is provided on the sealing partition (262), and one end is connected to the gear set (266), and the other end is fixedly connected to the diaphragm (24).

3. An automatic dosing machine using a pneumatically controlled diaphragm pump according to claim 2, characterized in that: The adjusting linkage (263) includes a limiting slide rod (2631), which is coaxially and slidably disposed on the output end of the gear set (266); a sealing slide (2632) is fixedly disposed on the limiting slide rod (2631), and the sealing slide (2632) is slidably and sealingly disposed on the sealing partition (262); One end of a lead screw (2633) is fixedly mounted on the sealing slide (2632), and a second bearing (2634) is mounted on the other end of the lead screw (2633). A top platform (2635) is mounted on the second bearing (2634), and the top platform (2635) is connected to the diaphragm (24).

4. An automatic dosing machine using a pneumatically controlled diaphragm pump according to claim 3, characterized in that: A limiting slide (265) is provided on the lead screw (2633) by means of a threaded rotation, and the limiting slide (265) is slidably disposed in the connecting pump chamber (261).

5. An automatic dosing machine using a pneumatically controlled diaphragm pump according to claim 3, characterized in that: The gear set (266) includes: The main bevel gear (2661) is rotatably disposed in the mechanical compartment (264) and connected to the pneumatic control assembly (27); Two secondary bevel gears (2662) are symmetrically rotated and arranged in the mechanical compartment (264) and mesh with the main bevel gear (2661); the secondary bevel gear (2662) has multiple limiting grooves (2664) on its shaft, and the limiting slide rod (2631) is coaxially slidably sleeved in the secondary bevel gear (2662) through the limiting grooves (2664).

6. An automatic dosing machine using a pneumatically controlled diaphragm pump according to claim 5, characterized in that: The gear set (266) also includes a first bearing (2663); The limiting slides (2631) of the two adjusting links (263) are connected by the first bearing (2663).

7. An automatic dosing machine using a pneumatically controlled diaphragm pump according to claim 5, characterized in that: The pneumatic control assembly (27) includes: a pneumatic mixing chamber (271), a connecting pipe (272), and an adjustment knob (274); The pneumatic mixing chamber (271) is fixedly installed on the connecting pump chamber (261). Two connecting pipes (272) are provided in the pneumatic mixing chamber (271). The two connecting pipes (272) are respectively connected to the first diaphragm pump chamber (23) and the second diaphragm pump chamber (28). The adjustment knob (274) is rotatably mounted in the pneumatic mixing chamber (271) and connected to the main bevel gear (2661).

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