Plunger quick-mounting type fixing mechanism of drip casting machine
By employing a butterfly nut bolt clamping design with upper and lower clamping plates and a quick-install bracket in the plunger fixing mechanism, the problem of cumbersome plunger installation and disassembly in the existing technology is solved, achieving efficient plunger assembly and easy operation.
Patent Information
- Application Number
- CN202423265605.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing plunger fixing mechanism is cumbersome to install and disassemble, resulting in low plunger assembly efficiency and a heavy workload for workers.
The upper and lower clamping plates of the rectangular frame are used to clamp the front and rear panels with butterfly bolts. A quick-release bracket is designed, and the plunger can be easily fixed and disassembled by using the plunger positioning plate and the limit plate, eliminating the need to tighten the nuts on both sides of the plunger.
It improves the efficiency of plunger installation and removal, reduces the workload of workers, and simplifies the operation process.
Smart Images

Figure CN223549578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a quick-release fixing mechanism for a drip irrigation machine. Background Technology
[0002] The plunger servo drive mechanism is the core mechanism of drip casting machines currently used in the production of chocolate products. It typically includes a plunger, a plunger fixing mechanism, and a servo screw mechanism. The front end of the plunger extends into the plunger cavity located within the distributing valve body of the drip casting machine, while its rear end is fixed by the plunger fixing mechanism. The plunger fixing mechanism is then fixed to the lead screw of the servo screw mechanism, enabling the servo screw mechanism to drive the plunger fixing mechanism and the plunger thereon to move back and forth. This pushes the material in the valve cavity, which is connected to the plunger cavity, into the distribution plate assembly below the distributing valve body, completing the casting operation.
[0003] Existing plunger fixing mechanisms are all frame-type fixing frames. The main body is a rectangular frame consisting of four panels (front, rear, top, and bottom) fixed with screws. The front panel of the rectangular frame is used to fix the plunger by opening a through hole for the rear end of the plunger to pass through, and then screwing locking nuts on the plunger sections on both sides of the through hole to clamp the front panel from both sides, thereby fixing the plunger axially. The rear panel of the rectangular frame is used to connect and fix the lead screw of the servo lead screw mechanism.
[0004] However, in practice, the current design of this plunger fixing mechanism has the following drawbacks:
[0005] Installing the plunger requires first removing the screws to take off the front panel, and then installing the plunger on it. Since the plunger needs to be tightened by screwing nuts from both sides, the operation is time-consuming and cumbersome. In addition, during actual installation, the front panel often has multiple rows of plungers arranged vertically, with each row consisting of 10 to 20 plungers spaced apart. Therefore, workers need to spend a lot of time and effort to carry out the installation, resulting in low plunger assembly efficiency of the equipment and a heavy workload for the workers.
[0006] Similarly, when it is necessary to disassemble, maintain or replace the plunger, there are also disadvantages such as low work efficiency and heavy workload for workers. Utility Model Content
[0007] The purpose of this invention is to address the problem mentioned in the background art regarding the inconvenience of plunger installation and disassembly in existing plunger fixing mechanisms, and to provide a quick-installation plunger fixing mechanism for drip irrigation machines, which can improve the efficiency of plunger installation and disassembly and reduce the burden on workers.
[0008] The technical solution of this utility model is: a quick-release fixing mechanism for a plunger of a drip irrigation machine, comprising a rectangular frame and a plurality of plungers. The rectangular frame includes a front panel and a rear panel, the rear panel being used to connect the lead screw of the servo lead screw mechanism of the drip irrigation machine; characterized in that the rectangular frame further includes an upper clamping plate and a lower clamping plate, both of which are locked together with butterfly nut bolts to clamp the front panel and the rear panel; simultaneously, a quick-release bracket for fixing the plungers is provided at the front of the front panel, the quick-release bracket including a plunger positioning plate and a plunger limiting insert plate, the plunger positioning plate being placed... The lower clamp plate is located at the front of the front panel. The plunger positioning plate is provided with a positioning hole for the plunger end to be inserted, and the plunger is provided with a limiting journal exposed in front of the positioning hole. The plunger limiting insert plate is inverted L-shaped, with a longitudinal part and a transverse part. The longitudinal part is attached to the front of the plunger positioning plate, while the transverse part is located on the upper part of the plunger positioning plate and is clamped and tightened together with the plunger positioning plate by the upper clamp plate and the lower clamp plate. The lower part of the longitudinal part has an inverted U-groove that mates with the limiting journal on the plunger, which is used to insert into the limiting journal to axially lock the plunger.
[0009] Furthermore, in this utility model, the left and right sides of the horizontal portion of the plunger limiting insert plate extend out of the upper clamping plate to form an extension portion. A plate locking screw is longitudinally inserted through the extension portion. The plate locking screw cooperates with the screw hole provided on the top of the plunger positioning plate to press the extension portions on both sides of the horizontal portion of the plunger limiting insert plate tightly onto the top of the plunger positioning plate.
[0010] Furthermore, the quick-install bracket described in this utility model also includes a base plate fixed to the bottom of the plunger positioning plate by a positioning plate locking screw. The base plate is provided with a slot located at the front of the plunger positioning plate for the bottom end of the longitudinal part of the plunger limiting insert to be inserted.
[0011] Furthermore, the upper clamping plate of this utility model is provided with two upper slots for the top of the front panel and the rear panel to be respectively embedded.
[0012] Furthermore, the lower clamping plate of this utility model is provided with two lower recesses for the bottom of the front panel and the rear panel to be embedded respectively.
[0013] Furthermore, in this utility model, the plungers are arranged in two rows, one above the other, with each row consisting of several plungers arranged at equal intervals laterally, and the positioning holes on the plunger positioning plate correspond one-to-one with the number of plungers.
[0014] Furthermore, in this utility model, the plunger positioning plate and the front panel are locked together by connecting screws.
[0015] The advantages of this utility model are:
[0016] The rectangular frame in this invention uses upper and lower clamping plates and butterfly bolts to clamp the front and rear panels, making disassembly of the front and rear panels very convenient. Furthermore, it features a quick-release bracket. This bracket uses a plunger positioning plate to position the plunger end, and a plunger limiting plate, clamped together with the plunger positioning plate by the upper and lower clamping plates, locks the plunger axially. Compared to conventional technology, there is no need to use nuts on both sides of the plunger for locking, thus making the plunger assembly and disassembly operations very simple and convenient, effectively improving plunger assembly efficiency and reducing the workload of workers. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0018] Figure 1 This is a three-dimensional exploded structural diagram of the present invention;
[0019] Figure 2 This is a cross-sectional view of the assembly structure of this utility model on a drip irrigation machine.
[0020] The components are: 1. Plunger; 101. Limiting journal; 2. Front panel; 3. Rear panel; 4. Upper clamping plate; 401. Upper groove; 5. Lower clamping plate; 501. Lower groove; 6. Butterfly cap bolt; 7. Plunger positioning plate; 701. Positioning hole; 8. Plunger limiting insert plate; 801. Longitudinal part; 801a. U-groove; 802. Horizontal part; 9. Insert plate locking screw; 10. Positioning plate locking screw; 11. Base plate; 11a. Slot; 12. Servo screw mechanism; 1201. Screw; 13. Distribution cavity; 1301. Plunger cavity. Detailed Implementation
[0021] Example: The following is combined with Figure 1 and Figure 2 The specific implementation of the quick-release fixing mechanism for the plunger of the drip irrigation machine provided by this utility model is described below:
[0022] The quick-release fixing mechanism of this drip irrigation machine, like conventional technology, has a rectangular frame and several plungers 1. The rectangular frame is composed of a front panel 2, a rear panel 3, an upper clamping plate 4, and a lower clamping plate 5. The upper clamping plate 4 and the lower clamping plate 5 are locked together using two butterfly nut bolts 6 to secure the front panel 2 and the rear panel 3. The rear panel 3 is used to connect the lead screw 1201 of the servo lead screw mechanism 12 of the drip irrigation machine, combined with... Figure 2 As shown, the front end of the plunger 1 extends into the plunger cavity 1301 of the distribution valve body 13 of the drip irrigation machine.
[0023] Further integration Figure 1 and Figure 2As shown, in this embodiment, the front panel 2 is also provided with a quick-release bracket for fixing the plunger 1. The quick-release bracket is composed of a plunger positioning plate 7, a plunger limiting insert plate 8, and a bottom support plate 11. The plunger positioning plate 7 is placed on the lower clamping plate 5 and located at the front of the front panel 2. The plunger positioning plate 7 is provided with a positioning hole 701 for the end of the plunger 1 to be inserted, and the plunger 1 is provided with a limiting journal 101 exposed in front of the positioning hole 701. The plunger limiting insert plate 8 is inverted L-shaped, with a longitudinal part 801 and a transverse part 802. The longitudinal part 801 is attached to the front of the plunger positioning plate 7, while the transverse part 802 is located on the upper part of the plunger positioning plate 7 and is clamped and tightened together with the plunger positioning plate 7 by the upper clamping plate 4 and the lower clamping plate 5. The lower part of the longitudinal part 801 has an inverted U-groove 801a that mates with the limiting journal 101 on the plunger 1, which is used to insert into the limiting journal 101 to axially lock the plunger 1.
[0024] Combination Figure 1 and Figure 2 As shown, the left and right sides of the horizontal portion 802 of the plunger limiting insert plate 8 extend out of the upper clamping plate 4 to form extension portions. The extension portions are longitudinally provided with insert plate locking screws 9. The insert plate locking screws 9 cooperate with the screw holes (not marked in the figure) provided on the top of the plunger positioning plate 7 to press the extension portions on both sides of the horizontal portion 802 of the plunger limiting insert plate 8 against the top of the plunger positioning plate 7.
[0025] The base plate 11 is fixed to the bottom of the plunger positioning plate 7 by two positioning plate locking screws 10. The base plate 11 is provided with a slot 11a located at the front of the plunger positioning plate 7 for the bottom end of the longitudinal part 801 of the plunger limiting insert plate 8 to be inserted.
[0026] Furthermore, in this embodiment, the upper clamping plate 4 is provided with two upper grooves 401 for the top of the front panel 2 and the rear panel 3 to be inserted respectively, and the lower clamping plate 5 is provided with two lower grooves 501 for the bottom of the front panel 2 and the rear panel 3 to be inserted respectively.
[0027] And as Figure 1 As shown, in this embodiment, the plunger positioning plate 7 and the front panel 2 are locked together by four connecting screws (notation omitted in the figure).
[0028] Combination Figure 1 As shown, in this embodiment, the plungers 1 are arranged in two rows, one above the other, with each row consisting of 16 plungers 1 arranged horizontally at equal intervals. The positioning holes 701 on the plunger positioning plate 7 correspond one-to-one with the number of plungers 1.
[0029] In this invention, the rectangular frame uses an upper clamping plate 4, a lower clamping plate 5, and a butterfly cap bolt 6 to clamp the front panel 2 and the rear panel 3, making disassembly of the front panel 2 and the rear panel 3 very convenient. Furthermore, it incorporates a quick-release bracket. This bracket uses a plunger positioning plate 7 to position the end of the plunger 1, and a plunger limiting insert plate 8, clamped together with the plunger positioning plate 7 by the upper clamping plate 4 and the lower clamping plate 5, to lock the axial direction of the plunger 1. Compared to conventional technology, there is no need to use nuts on both sides of the plunger 1 for locking, thus making the disassembly and assembly of the plunger 1 very simple and convenient, effectively improving the assembly efficiency of the plunger 1 and reducing the workload of workers.
[0030] Of course, the above embodiments are only for illustrating the technical concept and features of this utility model, and their purpose is to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the protection scope of this utility model. All modifications made in accordance with the spirit and essence of the main technical solution of this utility model should be covered within the protection scope of this utility model.
Claims
1. A quick-release fixing mechanism for a drip irrigation machine, comprising a rectangular frame and a plurality of plungers (1), the rectangular frame comprising a front panel (2) and a rear panel (3), the rear panel (3) being used to connect the lead screw (1201) of the servo lead screw mechanism (12) of the drip irrigation machine; characterized in that The rectangular frame also includes an upper clamping plate (4) and a lower clamping plate (5), which are locked together with butterfly bolts (6) to clamp the front panel (2) and the rear panel (3); at the same time, the front panel (2) is provided with a quick-release bracket for fixing the plunger (1), which includes a plunger positioning plate (7) and a plunger limiting insert (8). The plunger positioning plate (7) is placed on the lower clamping plate (5) and located at the front of the front panel (2). The plunger positioning plate (7) is provided with a positioning hole (701) for the end of the plunger (1) to be inserted, and the plunger (1) is provided with a front end protruding from the positioning hole (701). The limiting journal (101) of the part; the plunger limiting insert (8) is inverted L-shaped, with a longitudinal part (801) and a transverse part (802). The longitudinal part (801) is attached to the front of the plunger positioning plate (7), while the transverse part (802) is located on the upper part of the plunger positioning plate (7) and is clamped and tightened together with the plunger positioning plate (7) by the upper clamping plate (4) and the lower clamping plate (5); the lower part of the longitudinal part (801) has an inverted U-groove (801a) that mates with the limiting journal (101) on the plunger (1), which is used to insert into the limiting journal (101) to axially lock the plunger (1).
2. The plunger quick-release fixing mechanism of the drip irrigation machine according to claim 1, characterized in that... The horizontal portion (802) of the plunger limiting insert (8) extends out of the upper clamping plate (4) on both the left and right sides to form an extension portion. A plate locking screw (9) is longitudinally inserted on the extension portion. The plate locking screw (9) cooperates with the screw hole on the top of the plunger positioning plate (7) to press the extension portions on both sides of the horizontal portion (802) of the plunger limiting insert (8) against the top of the plunger positioning plate (7).
3. The quick-release fixing mechanism for the plunger of the drip irrigation machine according to claim 1, characterized in that... The quick-release bracket also includes a base plate (11) fixed to the bottom of the plunger positioning plate (7) by a positioning plate locking screw (10). The base plate (11) has a slot (11a) located at the front of the plunger positioning plate (7) for the bottom end of the longitudinal part (801) of the plunger limiting insert plate (8) to be inserted.
4. The quick-release fixing mechanism for the plunger of the drip irrigation machine according to claim 1, characterized in that... The upper clamping plate (4) is provided with two upper slots (401) for the top of the front panel (2) and the rear panel (3) to be inserted respectively.
5. The quick-release fixing mechanism for the plunger of the drip irrigation machine according to claim 1, characterized in that... The lower clamping plate (5) is provided with two lower slots (501) for the bottom of the front panel (2) and the rear panel (3) to be embedded respectively.
6. The quick-release fixing mechanism for the plunger of the drip irrigation machine according to claim 1, characterized in that... The plungers (1) are arranged in two rows, one above the other. Each row consists of several plungers (1) arranged horizontally at equal intervals. The number of positioning holes (701) on the plunger positioning plate (7) corresponds one-to-one with the number of plungers (1).
7. The plunger quick-release fixing mechanism of the drip irrigation machine according to claim 1, characterized in that... The plunger positioning plate (7) is locked and fixed to the front panel (2) by connecting screws.