Plunger type device for filling

Abstract

The utility model discloses a plunger type device for filling, which comprises a fixing frame, an air cylinder is arranged on one side of the fixing frame, a piston rod of the air cylinder vertically extends downwards into the fixing frame, the lower end of the piston rod of the air cylinder is connected with a synchronous block, the synchronous block is connected with the fixing frame in a sliding mode, and the synchronous block is connected with the fixing frame in a sliding mode. A plurality of plunger barrels are arranged on the fixing frame, each plunger barrel is connected with a pump cylinder body, each pump cylinder body is provided with a feeding port and a discharging port, a plurality of plungers matched with the corresponding plunger barrels are arranged on the synchronous block, the plungers are supported by the plunger barrels to move in a reciprocating mode, and the plunger barrels are connected with the synchronous block. The synchronous block drives the plungers to synchronously reciprocate in the corresponding plunger barrels, so that liquid suction and liquid drainage are achieved, and the air cylinder is provided with a flow adjusting mechanism used for adjusting the telescopic stroke of the piston rod. The problem that a traditional filling device cannot accurately control the filling amount is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of filling, in particular to a plunger type device for filling. Background Art

[0002] In the filling process, plunger pumps are a common filling machine with a simple mechanical structure, high long-term reliability, and resistance to damage. The plunger pump shown in patent CN201710130592.2 is one such example. This patent uses a bolt to control the plunger's stroke to achieve control of the filling volume. However, this adjustment method suffers from poor adjustment accuracy, making it impossible to accurately control the filling volume and inconvenient to operate. Utility Model Content

[0003] In view of the above defects in the prior art, the utility model provides a plunger-type filling device to accurately control the filling volume.

[0004] The utility model is implemented by the following technical solutions:

[0005] A plunger-type device for filling, comprising a fixed frame, a cylinder is provided on one side of the fixed frame, the piston rod of the cylinder extends vertically downward into the interior of the fixed frame, the lower end of the piston rod of the cylinder is connected to a synchronous block, the synchronous block is slidably connected to the fixed frame, a plurality of plunger barrels are provided on the fixed frame, each plunger barrel is connected to a pump cylinder body, the pump cylinder body is provided with a feed port and a discharge port, a plurality of plungers are provided on the synchronous block that cooperate with the corresponding plunger barrels, the plunger barrels support the plungers so that they can move back and forth, so as to drive each plunger to reciprocate synchronously in the corresponding plunger barrel through the synchronous block, thereby realizing liquid suction and discharge, and the cylinder is provided with a flow regulating mechanism for adjusting the telescopic stroke of the piston rod.

[0006] Furthermore, the flow regulating mechanism includes an adjusting rod, one end of which extends laterally to the inner cavity of the cylinder and can contact the end of the piston rod, and the other end of the adjusting rod is located outside the cylinder. The adjusting rod can be extended and retracted in the inner cavity of the cylinder and the extension and retraction stroke is adjustable, thereby controlling the stroke of the piston rod.

[0007] Furthermore, one end of the adjusting rod is threadably connected to the interior of the cylinder.

[0008] Furthermore, a rotating sleeve is provided on the outside of the other end of the adjusting rod, the rotating sleeve is threadedly connected to the adjusting rod, and a scale is provided on the outer peripheral wall of the rotating sleeve.

[0009] Furthermore, each of the plungers and the synchronization block can be detachably connected.

[0010] Furthermore, the synchronization block is provided with a plurality of fine-tuning mechanisms, which correspond one-to-one to the plurality of plungers. The fine-tuning mechanisms are used to adjust the position of the plunger in the synchronization block to change the stroke of the plunger in the plunger cylinder.

[0011] Furthermore, the fine-tuning mechanism is a fine-tuning screw, and a through hole is provided on the synchronization block. After the fine-tuning screw passes through the through hole, it can press the plunger, so that the position of the plunger can be adjusted by adjusting the fine-tuning screw, so that the stroke of the plunger in the plunger cylinder is adjustable.

[0012] Furthermore, the fine-tuning screw vertically presses the plunger.

[0013] Furthermore, a guide post is provided in the fixing frame, and the synchronization block is provided with a guide through hole that is slidably matched with the guide post.

[0014] Furthermore, a slider is provided in the guide through hole and is slidably engaged with the guide post.

[0015] Compared with the prior art, the beneficial effects of the present invention include at least:

[0016] The utility model drives the synchronous block to move up and down through the cylinder, and the synchronous block drives multiple plungers to move synchronously in the corresponding plunger barrels, thereby realizing the synchronous suction and discharge of liquid by multiple pump cylinders, thereby realizing one-time filling of multiple containers; the telescopic stroke of the piston rod is accurately controlled by the flow regulating mechanism, thereby accurately adjusting the filling volume. The utility model is easy to install, simple to operate, and has greatly improved practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of a plunger-type filling device according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of a plunger-type filling device according to an embodiment of the present invention;

[0019] In the figure: 1. Fixed frame; 11. Guide column; 2. Cylinder; 21. Piston rod; 3. Synchronous block; 41. Plunger barrel; 42. Pump cylinder; 43. Plunger; 44. Feed port; 45. Discharge port; 5. Flow regulating mechanism; 51. Adjusting rod; 52. Rotating sleeve; 6. Fine-tuning screw. DETAILED DESCRIPTION

[0020] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures denote identical or similar structures, and thus repeated descriptions thereof will be omitted.

[0021] The words expressing positions and directions described in this utility model are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of this utility model.

[0022] like Figure 1 and Figure 2 As shown, a plunger-type filling device provided by the utility model includes a fixed frame 1, a cylinder 2 is provided on one side of the fixed frame 1, and the piston rod 21 of the cylinder 2 extends vertically downward into the inside of the fixed frame 1, and the lower end of the piston rod 21 of the cylinder 2 is connected to a synchronous block 3, and the synchronous block 3 is slidably connected to the fixed frame 1, and a plurality of plunger barrels 41 are provided on the fixed frame 1, each plunger barrel 41 is connected to a pump cylinder body 42, and the pump cylinder body 42 is provided with a feed port 44 and a discharge port 45, and a plurality of plungers 43 are provided on the synchronous block 3 that cooperate with the corresponding plunger barrels 41, and the plunger barrels 41 support the plungers 43 so that they can move back and forth, so as to drive each plunger 43 to move back and forth synchronously in the corresponding plunger barrel 41 through the synchronous block 3, thereby realizing liquid suction and discharge, and the cylinder 2 is provided with a flow regulating mechanism 5 for adjusting the telescopic stroke of the piston rod 21.

[0023] In this embodiment, the cylinder 2 drives the synchronous block 3 to move up and down, and the synchronous block 3 drives multiple plungers 43 to move synchronously in the corresponding plunger tubes 41, so as to realize the synchronous liquid suction and discharge of multiple pump cylinders 42, thereby realizing one-time filling of multiple containers; the flow regulating mechanism 5 adjusts the telescopic stroke of the piston rod 21 to realize precise control of the filling volume. The specific principle is as follows: when the piston rod 21 moves upward, the synchronous block 3 is driven to move upward, which drives each plunger 43 to move synchronously in the corresponding plunger tube 41, so that the filling liquid is sucked into the plunger tube 41 from the feed port 44, and then the piston rod 21 moves upward. The piston rod 21 moves downward, driving the synchronous block 3 to move downward, driving each plunger 43 to move synchronously in the corresponding plunger barrel 41, so as to fill the filling liquid in the plunger barrel 41 into the container from the discharge port 45. Therefore, the telescopic stroke of the piston rod 21 determines the stroke of the plunger 43 in the plunger barrel 41, and the stroke of the plunger 43 in the plunger barrel 41 determines the volume of the plunger barrel 41. The volume of the plunger barrel 41 determines the amount of liquid sucked and discharged. Therefore, by controlling the telescopic stroke of the piston rod 21 through the flow regulating mechanism 5, the amount of liquid sucked and discharged by the plunger barrel 41 can be accurately controlled, thereby realizing accurate control of the filling amount.

[0024] It should be noted that the feed port 44 and the discharge port 45 of this embodiment are both equipped with a one-way valve. The present invention adopts a plunger pump for filling, which has higher precision, more stability and smaller volume.

[0025] As a preferred embodiment, the flow regulating mechanism 5 includes an adjusting rod 51, one end of which extends horizontally to the inner cavity of the cylinder 2 and can contact the end of the piston rod 21, and the other end of the adjusting rod 51 is located outside the cylinder 2. The adjusting rod 51 can be extended and retracted in the inner cavity of the cylinder 2 and the extension and retraction stroke is adjustable, thereby controlling the stroke of the piston rod 21.

[0026] In this embodiment, by controlling the telescopic stroke of the adjusting rod 51 in the inner cavity of the cylinder 2, the position of the piston rod 21 in the inner cavity of the cylinder 2 can be limited, thereby realizing the control of the telescopic stroke of the piston rod 21, and then realizing the precise control of the filling flow rate. The structure is simple and the adjustment is convenient.

[0027] As a preferred embodiment, one end of the adjusting rod 51 is connected to the inner thread of the cylinder 2. In this way, the telescopic movement of the adjusting rod 51 can be achieved by rotation, which has a simple structure and is easy to operate.

[0028] As a preferred embodiment, the other end of the adjusting rod 51 is externally sleeved with a rotating sleeve 52, which is threadedly connected to the adjusting rod 51. The outer peripheral wall of the rotating sleeve 52 is provided with a scale. The rotating sleeve 52 drives the adjusting rod 51 to rotate, thereby adjusting the extension and retraction stroke of the adjusting rod 51 within the inner cavity of the cylinder 2, thereby precisely controlling the stroke of the piston rod 21. The scale on the rotating sleeve 52 allows for more precise adjustment, thereby precisely adjusting the filling volume.

[0029] As a preferred embodiment, each plunger 43 is detachably connected to the synchronization block 3. In this way, when one of the plunger pumps is damaged, the plunger 43 can be removed and then replaced without replacing the entire plunger pump, thus avoiding waste. This solves the problem that current plunger pumps are all integrated and inconvenient to disassemble. When one component is damaged, the entire plunger pump needs to be replaced, resulting in waste.

[0030] As a preferred embodiment, the synchronization block 3 is also provided with multiple fine-tuning mechanisms, which correspond one-to-one to the multiple plungers 43. The fine-tuning mechanisms are used to adjust the position of the plunger 43 in the synchronization block 3 to change the stroke of the plunger 43 in the plunger cylinder 41.

[0031] In this embodiment, the flow rate of the plunger barrel 41 can be adjusted by changing the stroke of the plunger 43 in the plunger barrel 41 through the fine-tuning mechanism; since each plunger 43 is equipped with a fine-tuning mechanism, the flow rate of each plunger barrel 41 can be fine-tuned individually, which is highly flexible and can meet different filling requirements.

[0032] As a preferred embodiment, the fine-tuning mechanism is a fine-tuning screw 6, and a through hole is provided on the synchronization block 3. After the fine-tuning screw 6 passes through the through hole, it can press the plunger 43, so that the position of the plunger 43 can be adjusted by adjusting the fine-tuning screw 6, so that the stroke of the plunger 43 in the plunger cylinder 41 can be adjusted.

[0033] In this embodiment, when the plunger 43 needs to be adjusted, the fine-tuning screw 6 is loosened and the position of the plunger 43 is manually adjusted. This allows the travel distance of the plunger 43 within the plunger barrel 41 to be adjusted, allowing the flow rate of each plunger barrel 41 to be adjusted individually, providing greater flexibility. After adjustment, the fine-tuning screw 6 is tightened to lock the plunger 43, making operation simple and convenient.

[0034] As a preferred embodiment, the fine-tuning screw 6 vertically presses the plunger 43. The piston of this embodiment moves in the first direction ( Figure 1 The fine-tuning screw 6 moves back and forth in the direction indicated by the arrow F), and presses the plunger 43 perpendicularly to the first direction. On the one hand, it is convenient for the operator to adjust the fine-tuning screw 6, and on the other hand, it can improve the locking effect.

[0035] As a preferred embodiment, a guide post 11 is provided in the fixing frame 1, and the synchronizer block 3 is provided with a guide through hole that slides with the guide post 11. The guide post 11 guides the movement of the synchronizer block 3 and also provides support, thereby improving the stability and reliability of the movement of the synchronizer block 3.

[0036] As a preferred embodiment, a slider is provided in the guide through hole and is in sliding cooperation with the guide post 11. The synchronizing block 3 is in sliding cooperation with the guide post 11 through the slider, which further improves the smoothness of the reciprocating movement of the synchronizing block 3.

[0037] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A plunger-type filling device, characterized in that: The invention comprises a fixed frame (1), a cylinder (2) is provided on one side of the fixed frame (1), a piston rod (21) of the cylinder (2) extends vertically downward to the inside of the fixed frame (1), a synchronous block (3) is connected to the lower end of the piston rod (21) of the cylinder (2), and the synchronous block (3) is slidably connected to the fixed frame (1), a plurality of plunger cylinders (41) are provided on the fixed frame (1), each plunger cylinder (41) is connected to a pump cylinder body (42), and the pump cylinder body (42) is provided with a plurality of plunger cylinders (41). There is a feed port (44) and a discharge port (45), the synchronization block (3) is provided with a plurality of plungers (43) matched with corresponding plunger cylinders (41), the plunger cylinders (41) support the plungers (43) so as to be able to move back and forth, so as to drive each plunger (43) to move back and forth synchronously in the corresponding plunger cylinder (41) through the synchronization block (3), thereby realizing liquid suction and discharge, and the cylinder (2) is provided with a flow regulating mechanism (5) for regulating the telescopic stroke of the piston rod (21) The flow regulating mechanism (5) includes an adjusting rod (51), one end of which extends transversely to the inner cavity of the cylinder (2) and can contact the end of the piston rod (21), and the other end of which is located outside the cylinder (2). The adjusting rod (51) can be extended and retracted in the inner cavity of the cylinder (2) and the extension stroke is adjustable, thereby controlling the stroke of the piston rod (21). One end of the adjusting rod (51) is connected to the inner thread of the cylinder (2). The other end of the adjusting rod (51) is externally sleeved with a rotating sleeve (52), the rotating sleeve (52) is threadedly connected to the adjusting rod (51), and a scale is provided on the outer peripheral wall of the rotating sleeve (52); the synchronous block (3) is also provided with a plurality of fine-tuning mechanisms, the plurality of fine-tuning mechanisms corresponding to the plurality of plungers (43) one by one, and the fine-tuning mechanisms are used to adjust the position of the plunger (43) in the synchronous block (3) to change the stroke of the plunger (43) in the plunger cylinder (41).

2. The plunger-type filling device according to claim 1, characterized in that: Each plunger (43) and the synchronization block (3) can be detachably connected.

3. The plunger-type filling device according to claim 1, characterized in that: The fine-tuning mechanism is a fine-tuning screw (6), and a through hole is provided on the synchronization block (3). After the fine-tuning screw (6) passes through the through hole, it can press the plunger (43), so that the position of the plunger (43) can be adjusted by adjusting the fine-tuning screw (6), so that the stroke of the plunger (43) in the plunger cylinder (41) can be adjusted.

4. The plunger-type filling device according to claim 3, characterized in that: The fine-tuning screw (6) vertically presses against the plunger (43).

5. The plunger-type filling device according to claim 1, characterized in that: A guide post (11) is provided in the fixing frame (1), and a guide through hole is provided in the synchronization block (3) for sliding engagement with the guide post (11).

6. The plunger-type filling device according to claim 5, characterized in that: A sliding block is provided in the guide through hole and is in sliding engagement with the guide post (11).

Images