Negative-pressure pigment subpackaging and metering device

Abstract

The utility model provides a pigment negative pressure subpackage metering device, which relates to the technical field of pigment subpackage and comprises a negative pressure suction tube, a U-shaped vertical frame is welded at the top end of a slip ring, and the top end of a piston rod is welded and fixed with a top side rod of the U-shaped vertical frame; a U-shaped handle frame is welded to the periphery of the negative pressure suction barrel, a vertical threaded shaft is rotationally installed in the U-shaped handle frame, a U-shaped driving frame is arranged on the vertical threaded shaft in a screwing and sleeving mode, and the U-shaped driving frame is matched with the matching insertion groove in an inserted connection mode; an arc-shaped sliding plate is slidably installed on a connecting block at the bottom of one vertical side rod of the U-shaped vertical frame in a penetrating mode, and the tail end of the arc-shaped sliding plate is of a bent and tilted structure. The part, away from the tail end, of the arc-shaped sliding plate is matched with the two positioning lug plates and the two L-shaped supporting plates of the U-shaped driving frame in a penetrating and inserting mode. According to the utility model, the trouble that the sliding ring and the U-shaped driving frame need to be tightened and loosened by screwing the bolts forwards and backwards for multiple circles when the rubber piston is extracted and replaced can be saved, and the extraction and replacement efficiency and convenience of the rubber piston can be improved.

Description

Technical Field

[0001] This utility model relates to the field of pigment dispensing technology, and in particular to a pigment negative pressure dispensing and metering device. Background Technology

[0002] In the field of pigment production and application, pigment dispensing and metering is a crucial step. Pigment dispensing is mostly carried out using negative pressure dispensing and metering devices.

[0003] The existing negative pressure suction metering device has an inadequately optimized connection structure between the piston rod and the threaded drive shaft that transmits driving force. This makes it difficult to disassemble the piston rod from the threaded drive shaft to remove and replace the piston. Utility Model Content

[0004] In view of this, the present invention provides a pigment negative pressure dispensing and metering device to solve the problem that the piston rod is inconvenient to disassemble and separate from the threaded propulsion shaft to extract and replace the piston on it.

[0005] The technical solution proposed by this utility model is: a pigment negative pressure dispensing and metering device, specifically including a negative pressure suction cylinder, wherein a piston rod is slidably installed inside the negative pressure suction cylinder, and a rubber piston is fitted at the bottom end of the piston rod;

[0006] The negative pressure suction cylinder is fitted with a notched slip ring. Two symmetrically arranged positioning lugs are bent at the notch of the slip ring, forming a mating slot between them. A U-shaped vertical frame is welded to the top of the slip ring, and the top of the piston rod is welded and fixed to the top side rod of the U-shaped vertical frame. A U-shaped handle frame is welded to the outer periphery of the negative pressure suction cylinder. A vertical threaded shaft is rotatably installed inside the U-shaped handle frame, and a U-shaped drive frame is screwed onto the vertical threaded shaft, engaging with the mating slot. An arc-shaped sliding plate is slidably installed through a connecting block at the bottom of one vertical side rod of the U-shaped vertical frame. The tail end of the arc-shaped sliding plate has a bent and upturned structure and is connected to the connecting block by a tension spring. The portion of the arc-shaped sliding plate away from its tail end engages with the two positioning lugs and two L-shaped support plates of the U-shaped drive frame.

[0007] Preferably, the center of the complete circle containing the arc-shaped sliding plate coincides with the slip ring, and the inner side of the arc-shaped sliding plate slides and fits against the outer periphery of the slip ring.

[0008] Preferably, a motor is fixedly installed at the top of the U-shaped handle frame, and the motor is connected to the vertical threaded shaft for transmission.

[0009] Preferably, when the slip ring slides upward to remove and replace the rubber piston, its mating slot is used for the passage of a motor.

[0010] Preferably, the outer periphery of the rubber piston is in frictional and compressive contact with the inner periphery of the negative pressure suction cylinder.

[0011] Preferably, a suction pipe is welded to the bottom of the negative pressure suction cylinder.

[0012] Preferably, the peripheral wall of the negative pressure suction cylinder is inlaid with a vertical strip-shaped viewing window with measuring scale.

[0013] The pigment negative pressure dispensing and metering device provided by this utility model has the following beneficial effects:

[0014] 1. The curved sliding plate is installed by sliding and positioned by pulling with a tension spring. Simply slide the curved sliding plate along the slip ring away from the U-shaped drive frame to remove the curved sliding plate from the U-shaped drive frame, loosen the slip ring, and disconnect the transmission connection between the slip ring, piston rod, and vertical threaded shaft. The rubber piston can then be removed, disassembled, and replaced via the piston rod. Compared to the existing technology where the curved sliding plate and U-shaped drive frame are connected by bolts, this eliminates the hassle of tightening the bolts multiple times in both directions to loosen or loosen the slip ring and U-shaped drive frame when removing and replacing the rubber piston, thus improving the efficiency and convenience of removing and replacing the rubber piston.

[0015] 2. When the slip ring slides upward to remove and replace the rubber piston, its mating slot is used for the motor to pass through. This ensures that when the slip ring is pulled up by the piston rod to replace the rubber piston, it can smoothly pass through the motor by relying on the mating slot, avoiding the motor from blocking the slip ring and affecting the normal removal and replacement of the rubber piston. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0017] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the present invention.

[0018] In the attached diagram:

[0019] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0020] Figure 2 A schematic diagram showing the installation position of the lobed drive frame in this utility model is provided.

[0021] Figure 3 This invention shows a half-section internal structure diagram of the negative pressure suction cylinder.

[0022] Figure 4 A schematic diagram showing the disassembled state of the slip ring and the U-shaped vertical frame in this utility model is shown.

[0023] Figure 5 The diagram shows the disassembled state of the arc-shaped sliding plate and the U-shaped drive frame in this utility model.

[0024] List of reference numerals in the attached diagram:

[0025] 1. Negative pressure suction cylinder; 101. Vertical strip-shaped viewing window; 102. Suction pipe; 103. U-shaped handle frame; 104. Vertical threaded shaft; 105. U-shaped drive frame;

[0026] 2. Slip ring; 201. U-shaped vertical frame; 202. Arc-shaped sliding plate; 203. Tension spring; 204. Positioning ear plate;

[0027] 3. Electric motor;

[0028] 4. Piston rod; 401. Rubber piston. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Please refer to Figures 1 to 5 ; Example

[0031] This utility model proposes a pigment negative pressure dispensing and metering device, including a negative pressure suction cylinder 1, a piston rod 4 is slidably installed inside the negative pressure suction cylinder 1, and a rubber piston 401 is fitted at the bottom end of the piston rod 4.

[0032] A notched slip ring 2 is slidably mounted on the negative pressure suction cylinder 1. Two symmetrically arranged positioning lugs 204 are bent at the notch of the slip ring 2, forming a mating slot between the two positioning lugs 204. A U-shaped vertical frame 201 is welded to the top of the slip ring 2, and the top of the piston rod 4 is welded and fixed to the top side rod of the U-shaped vertical frame 201. A U-shaped handle frame 103 is welded to the outer periphery of the negative pressure suction cylinder 1, and a vertical threaded shaft 104 is rotatably mounted inside the U-shaped handle frame 103. A U-shaped drive frame 105 is screwed onto the vertical threaded shaft 104, and the U-shaped drive frame 105 is inserted into the mating slot; an arc-shaped slide plate 202 is slidably installed on the connecting block at the bottom of the vertical side rod of the U-shaped vertical frame 201, the tail end of the arc-shaped slide plate 202 has a bent and raised structure, and a tension spring 203 is connected to the connecting block; the part of the arc-shaped slide plate 202 away from the tail end is inserted into the two positioning ear plates 204 and the two L-shaped support plates of the U-shaped drive frame 105.

[0033] Preferably, the center of the complete circle containing the arc-shaped sliding plate 202 coincides with the slip ring 2, and the inner side of the arc-shaped sliding plate 202 slides and fits against the outer periphery of the slip ring 2.

[0034] Preferably, a motor 3 is fixedly installed at the top of the U-shaped frame 103, and the motor 3 is connected to the vertical threaded shaft 104 for transmission.

[0035] Based on Example 1, Example 2:

[0036] The outer periphery of the rubber piston 401 is in frictional and extrusion contact with the inner periphery of the negative pressure suction cylinder 1; a suction pipe 102 is welded to the bottom of the negative pressure suction cylinder 1; a vertical strip-shaped viewing window 101 with measuring scale is embedded through the peripheral wall of the negative pressure suction cylinder 1.

[0037] The following is a detailed explanation and description of the specific details, implementation steps, functions and interrelationships of the above-mentioned features, and their roles in realizing this invention:

[0038] Because the rubber piston 401 will wear out excessively during long-term use, affecting the negative pressure suction effect formed inside the negative pressure suction cylinder 1, it needs to be replaced regularly. When replacing the rubber piston 401, it needs to be removed from the negative pressure suction cylinder 1 through the piston rod 4.

[0039] The curved sliding plate 202 can connect and fix the two positioning ear plates 204 and the U-shaped drive frame 105 together, so that the slip ring 2 and piston rod 4 are connected to the vertical threaded shaft 104. The curved sliding plate 202 is slidably installed and positioned by pulling with a tension spring 203. Simply slide the curved sliding plate 202 away from the slip ring 2 away from the U-shaped drive frame 105 to remove the curved sliding plate 202 from the U-shaped drive frame 105, loosen the slip ring 2, and disconnect the transmission connection between the slip ring 2, piston rod 4 and vertical threaded shaft 104. The rubber piston 401 can then be removed, disassembled and replaced by the piston rod 4. Compared with the existing technology where the curved sliding plate 202 and U-shaped drive frame 105 are connected by bolts, this eliminates the trouble of tightening the bolts multiple times in both directions to loosen or loosen the slip ring 2 and U-shaped drive frame 105 when removing and replacing the rubber piston 401, which helps to improve the efficiency and convenience of removing and replacing the rubber piston 401.

[0040] When the slip ring 2 slides upward to remove and replace the rubber piston 401, its mating slot is used to pass through the motor 3. This ensures that when the slip ring 2 is pulled up by the piston rod 4 to remove and replace the rubber piston 401, the slip ring 2 can smoothly pass through the motor 3 by relying on the mating slot, avoiding the motor 3 from blocking the slip ring 2 and affecting the normal removal and replacement of the rubber piston 401.

[0041] The working principle of this embodiment is as follows: When in use, the suction tube 102 is inserted into the pigment, and then the motor 3 is started and controlled to rotate forward. When the motor 3 rotates forward, the vertical threaded shaft 104 pushes the U-shaped drive frame 105, slip ring 2, U-shaped vertical frame 201, piston rod 4 and rubber piston 401 to slide upward. When the rubber piston 401 slides upward, a vacuum space is created inside the negative pressure suction cylinder 1. This vacuum space will generate a negative pressure suction effect. Through this negative pressure suction effect, the suction tube 102 can suck the pigment into the negative pressure suction cylinder 1. During the suction process, the quantitative suction of the pigment can be achieved by observing the metering scale on the vertical strip window 101.

[0042] After a certain amount of pigment is drawn into the negative pressure suction cylinder 1, the negative pressure suction cylinder 1 is transferred to the container for dispensing pigment and the motor 3 is controlled to reverse. When the motor 3 rotates forward, it can be pushed by the vertical threaded shaft 104 to drive the rubber piston 401 to slide downward, spraying the pigment in the negative pressure suction cylinder 1 into the container for dispensing pigment, thus completing the quantitative dispensing of pigment.

[0043] The following points should be noted in this article:

[0044] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0045] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0046] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A pigment negative pressure dispensing and metering device, comprising a negative pressure suction cylinder (1), wherein a piston rod (4) is slidably installed inside the negative pressure suction cylinder (1), and a rubber piston (401) is fitted at the bottom end of the piston rod (4). Its features are, The negative pressure suction cylinder (1) is fitted with a sliding ring (2) with a notch. Two symmetrically arranged positioning ear plates (204) are bent at the notch position of the sliding ring (2), and a matching slot is formed between the two positioning ear plates (204). A U-shaped vertical frame (201) is welded to the top of the sliding ring (2), and the top of the piston rod (4) is welded and fixed to the top side rod of the U-shaped vertical frame (201). A U-shaped handle frame (103) is welded to the outer periphery of the negative pressure suction cylinder (1), and a vertical threaded shaft (10) is rotatably installed inside the U-shaped handle frame (103). 4) A U-shaped drive frame (105) is screwed onto the vertical threaded shaft (104), and the U-shaped drive frame (105) is inserted into the mating slot; an arc-shaped slide plate (202) is slidably installed on the connecting block at the bottom of the vertical side rod of the U-shaped vertical frame (201), the tail end of the arc-shaped slide plate (202) is bent and raised, and a tension spring (203) is connected to the connecting block; the part of the arc-shaped slide plate (202) away from the tail end is inserted into the two positioning ear plates (204) and the two L-shaped support plates of the U-shaped drive frame (105).

2. The pigment negative pressure dispensing and metering device according to claim 1, characterized in that, The center of the complete circle containing the arc-shaped sliding plate (202) coincides with the slip ring (2), and the inner side of the arc-shaped sliding plate (202) slides and fits against the outer periphery of the slip ring (2).

3. The pigment negative pressure dispensing and metering device according to claim 1, characterized in that, A motor (3) is fixedly installed at the top of the scalloped frame (103), and the motor (3) is connected to the vertical threaded shaft (104) for transmission.

4. The pigment negative pressure dispensing and metering device according to claim 1, characterized in that, When the slip ring (2) slides upward to remove and replace the rubber piston (401), the mating slot on it is used for the motor (3).

5. The pigment negative pressure dispensing and metering device according to claim 1, characterized in that, The outer periphery of the rubber piston (401) comes into frictional and compressive contact with the inner periphery of the negative pressure suction cylinder (1).

6. The pigment negative pressure dispensing and metering device according to claim 1, characterized in that, The bottom of the negative pressure suction cylinder (1) is welded with a suction pipe (102).

7. The pigment negative pressure dispensing and metering device according to claim 1, characterized in that, The negative pressure suction cylinder (1) has a vertical strip window (101) with a measuring scale embedded through its peripheral wall.

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