Slurry adding machine for vinyl

Abstract

The utility model relates to a slurry adding machine for vinyl. The slurry adding machine comprises a rack, the material barrel is mounted on one side of the rack; the material barrel is used for containing slurry; the pumping assembly is mounted on the other side of the rack; the pumping assembly comprises a feeding pipe, a check valve, a pump body and an air cylinder. The pump body comprises a pump cylinder, a piston valve, a lower shaft body and an upper shaft body; the piston valve comprises a valve body, a limiting ring and a ball; a plurality of lower axial flow holes and a plurality of upper axial flow holes are formed in the positions, corresponding to the two opposite sides of the limiting ring, of the valve body in a circumferential array mode. The lower cavity and the upper cavity are communicated through the lower axial flow hole, the interior of the valve body and the upper axial flow hole. The slurry adding machine for vinyl is simple in structure and convenient to use, the piston valve divides the interior of the pump cylinder into the lower cavity and the upper cavity, the lower cavity is used for pumping in slurry, the upper cavity is used for pumping out slurry, the slurry enters the upper cavity from the lower cavity through the lower axial flow hole, the interior of the valve body and the upper axial flow hole, heat can be effectively dissipated, aging of a sealing ring is prevented, and the service life of the slurry adding machine is prolonged. Sealing performance is ensured, and slurry leakage is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry adding machines, in particular to a slurry adding machine for vinyl. Background Art

[0002] The slurry feeder is a key equipment used in the vinyl process. It is mainly used to accurately and efficiently deliver pre-mixed slurry (such as PVC paste, colorant, etc.) to the mold of the vinyl machine.

[0003] Traditional slurry feeders may not have been designed with sufficient consideration for the thermal stability of the piston seal under prolonged, high-speed friction. As slurry is continuously pumped, friction between the piston seal and the pump body increases, leading to a significant accumulation of heat energy in the seal. This heat buildup accelerates aging of the seal, causing it to gradually lose its elasticity and sealing effectiveness. This ultimately damages the pump's sealing properties, leading to slurry leaks and compromising production continuity and product quality. Utility Model Content

[0004] Based on this, the utility model provides a slurry adding machine for enameling, which has a simple structure and is easy to use. The piston valve separates the interior of the pump barrel into a lower chamber and an upper chamber. The lower chamber is used to pump in the slurry, and the upper chamber is used to pump out the slurry. The slurry enters the upper chamber from the lower chamber through the lower axial flow hole, the interior of the valve body, and the upper axial flow hole, which can effectively dissipate heat, prevent aging of the sealing ring, ensure sealing performance, and prevent leakage of slurry.

[0005] In order to achieve the purpose of the present invention, the present invention adopts the following technical solutions:

[0006] A slurry adding machine for vinyl bonding, comprising:

[0007] frame;

[0008] A material barrel installed on one side of the frame; the material barrel is used to hold slurry; and

[0009] The pump assembly is installed on the other side of the frame; the pump assembly includes a feed pipe connected to the bottom of the barrel, a check valve installed inside the feed pipe, a pump body connected to the feed pipe, and a cylinder installed on the top of the frame; the pump body includes a pump barrel, a piston valve coaxially installed inside the pump barrel, a lower shaft connected to the bottom end of the piston valve, and an upper shaft connected to the top end of the piston valve; the bottom end of the pump barrel is connected to the feed pipe downward, and the top end of the pump barrel is connected to the discharge pipe outward; the piston valve includes a valve body arranged in a hollow cylinder, a radially extending inner wall of the valve body, and a plurality of A limit ring protruding inward and a ball installed inside the upper end of the valve body; the valve body has multiple lower axial flow holes and upper axial flow holes in a circumferential array on opposite sides corresponding to the limit ring; the lower axial flow hole corresponds to the lower chamber, and the upper axial flow hole corresponds to the upper chamber; the lower chamber and the upper chamber are connected through the lower axial flow hole, the interior of the valve body, and the upper axial flow hole; the ball is used to abut the limit ring, and the diameter of the ball is larger than the inner diameter of the limit ring to cut off the passage inside the valve body, thereby controlling the connection and disconnection between the lower chamber and the upper chamber.

[0010] The above-mentioned slurry adding machine for enamel has a simple structure and is easy to use. The piston valve separates the interior of the pump barrel into a lower chamber and an upper chamber. The lower chamber is used to pump in the slurry, and the upper chamber is used to pump out the slurry. The slurry enters the upper chamber from the lower chamber through the lower axial flow hole, the interior of the valve body, and the upper axial flow hole, which can effectively dissipate heat, prevent aging of the sealing ring, ensure sealing performance, and prevent leakage.

[0011] In one embodiment, the piston valve also includes a wear-resistant ring coaxially sleeved on the outer wall of the valve body, and sealing rings arranged at opposite ends of the wear-resistant ring; the wear-resistant ring and the limit ring are arranged opposite to each other, and the outer walls of the wear-resistant ring and the sealing ring are used to abut the inner wall of the pump barrel.

[0012] In one embodiment, the pump barrel includes a barrel body, a lower end cover installed at the bottom end of the barrel body, and an upper end cover installed at the top end of the barrel body; the outer walls of the wear-resistant ring and the sealing ring are used to abut the inner wall of the barrel body, the lower shaft body passes through the lower end cover, and the upper shaft body passes through the upper end cover and is upwardly connected to the piston rod of the cylinder.

[0013] In one embodiment, the lower end cover is connected downwardly to the feed pipe, and the upper end cover is connected outwardly to the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional schematic diagram of a slurry adding machine for vinyl bonding according to one embodiment of the present invention;

[0015] Figure 2 for Figure 1 A three-dimensional schematic diagram of a slurry adding machine for vinyl bonding shown in another perspective;

[0016] Figure 3 for Figure 1 The exploded schematic diagram of the pump body in the slurry adding machine for rubber enameling is shown;

[0017] Figure 4 for Figure 3 The schematic diagram of the comparison of the piston valve, lower shaft and upper shaft in the slurry adding machine for varnishing rubber is shown;

[0018] Figure 5 for Figure 4 An enlarged schematic diagram of circle A is shown;

[0019] Figure 6 for Figure 3 The cross-sectional view of the pump body in the slurry adding machine for varnishing rubber is shown in the state where the piston valve is moved upward;

[0020] Figure 7 for Figure 6 An enlarged schematic diagram of circle B is shown;

[0021] Figure 8 for Figure 3 The cross-sectional view of the pump body in the slurry adding machine for varnishing rubber is shown in the state where the piston valve is moved downward;

[0022] Figure 9 for Figure 8 An enlarged schematic diagram of circle C is shown.

[0023] Description of the accompanying drawings:

[0024] 10- rack;

[0025] 20-barrel;

[0026] 30-pumping assembly, 31-feed pipe, 32-cylinder, 33-pump barrel, 331-barrel body, 332-lower end cover, 333-upper end cover, 34-piston valve, 341-valve body, 342-limiting ring, 343-ball, 345-wear-resistant ring, 346-sealing ring, 347-lower axial flow hole, 348-upper axial flow hole, 35-lower shaft body, 36-upper shaft body, 37-discharge pipe, 38-support frame. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to facilitate a more thorough and comprehensive understanding of the disclosure of the present invention.

[0028] It should be noted that when an element is referred to as being “fixed to” another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or there may be an intermediate element.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art 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.

[0030] See also Figures 1 to 9 , is a slurry feeding machine for vinyl glue according to one embodiment of the present invention, comprising a frame 10, a material barrel 20 mounted on one side of the frame 10, and a pumping assembly 30 mounted on the other side of the frame 10. The material barrel 20 is used to hold the slurry, and the pumping assembly 30 is used to extract the slurry from the material barrel 20 and transfer it to other workstations.

[0031] The pumping assembly 30 includes a feed pipe 31 connected to the bottom end of the barrel 20, a check valve (not shown) installed inside the feed pipe 31, a pump body connected to the feed pipe 31, and a cylinder 32 installed on the top end of the frame 10; the cylinder 32 is connected downwardly to the pump body to extract the slurry.

[0032] Specifically, the pump body comprises a pump barrel 33, a piston valve 34 coaxially mounted within the pump barrel 33, a lower shaft 35 connected to the bottom end of the piston valve 34, and an upper shaft 36 connected to the top end of the piston valve 34. The bottom end of the pump barrel 33 is downwardly connected to the feed pipe 31, while the top end of the pump barrel 33 is outwardly connected to the discharge pipe 37. The lower shaft 35 is configured to penetrate the bottom end of the pump barrel 33, while the upper shaft 36 is configured to penetrate the top end of the pump barrel 33. The piston valve 34 divides the interior of the pump barrel 33 into a lower chamber and an upper chamber, which are connected or blocked by the piston valve 34.

[0033] like Figures 3 to 5 As shown, the piston valve 34 includes a valve body 341 in the form of a hollow cylinder, a retaining ring 342 projecting radially inward from the inner wall of the valve body 341, a ball 343 mounted within the upper end of the valve body 341, a wear ring 345 coaxially sleeved on the outer wall of the valve body 341, and sealing rings 346 disposed at opposite ends of the wear ring 345. The wear ring 345 is disposed opposite the retaining ring 342, and the outer walls of the wear ring 345 and the sealing ring 346 are both configured to abut the inner wall of the pump barrel 33. The ball 343 abuts the retaining ring 342. The diameter of the ball 343 is larger than the inner diameter of the retaining ring 342, thereby blocking the passage within the valve body 341 and thereby controlling the flow between the lower chamber and the upper chamber.

[0034] Specifically, valve body 341 has a plurality of lower axial holes 347 and upper axial holes 348 arranged in a circumferential array on opposite sides of retaining ring 342. Lower axial holes 347 correspond to the lower chamber, while upper axial holes 348 correspond to the upper chamber. The lower and upper chambers are connected via lower axial holes 347, the interior of valve body 341, and upper axial holes 348. Therefore, the ball bearing 343 can control the flow between the lower and upper chambers.

[0035] In this embodiment, the pump barrel 33 includes a barrel body 331, a lower end cover 332 installed at the bottom end of the barrel body 331, and an upper end cover 333 installed at the top end of the barrel body 331; the outer walls of the wear-resistant ring 345 and the sealing ring 346 are used to abut the inner wall of the barrel body 331, the lower shaft body 35 passes through the lower end cover 332, and the upper shaft body 36 passes through the upper end cover 333 and is upwardly connected to the piston rod of the cylinder 32, so that the cylinder 32 can drive the piston valve 34 to move inside the pump barrel 33.

[0036] like Figure 1 and Figure 2 As shown, the lower end cover 332 is connected downwardly to the feed pipe 31 , and the upper end cover 333 is connected outwardly to the discharge pipe 37 .

[0037] In this embodiment, if Figure 2 As shown, the pump body is connected to the frame 10 via a support frame 38 .

[0038] like Figure 6 and Figure 7 As shown, when the piston valve 34 moves upward, the check valve is open, the ball 343 is in an overweight state, and the ball 343 abuts the limit ring 342 to cut off the passage inside the valve body 341, thus isolating the lower chamber from the upper chamber. As the piston valve 34 gradually rises to the top, the pressure inside the upper chamber increases and pumps out the slurry, while the negative pressure inside the lower chamber draws the slurry and accumulates it inside the lower chamber.

[0039] like Figure 8 and Figure 9 As shown, when the piston valve 34 moves downward, the check valve closes, the ball 343 is in a weightless state, and the ball 343 moves away from the limit ring 342 to open the passage inside the valve body 341, thereby connecting the lower chamber and the upper chamber. As the piston valve 34 is gradually pressed down to the bottom, the piston valve 34 squeezes the slurry accumulated inside the lower chamber. Because the check valve is closed, the slurry can only flow upward along the lower axial flow hole 347, the interior of the valve body 341, and the upper axial flow hole 348 to enter the interior of the upper chamber. At this time, when the piston valve 34 moves upward in the opposite direction, the pressure inside the upper chamber increases and the slurry is pumped out, while the negative pressure inside the lower chamber draws the slurry and accumulates it inside the lower chamber.

[0040] In summary, the reciprocating motion of piston valve 34 allows slurry to be pumped into the lower chamber and out of the upper chamber, completing the entire pumping process. During the pumping process, the slurry repeatedly passes through piston valve 34, removing a large amount of heat. This effectively prevents heat accumulation in sealing ring 346, preventing aging of sealing ring 346, ensuring sealing performance, and preventing slurry leakage.

[0041] Furthermore, in this embodiment, wear-resistant rings and sealing rings are installed between the lower end cover 332 and the lower shaft body 35, and between the upper end cover 333 and the upper shaft body 36, so as to improve the movement smoothness and sealing between the lower end cover 332 and the lower shaft body 35, and between the upper end cover 333 and the upper shaft body 36, and effectively prevent leakage of slurry.

[0042] The above-mentioned slurry adding machine for enamel glue has a simple structure and is easy to use. The piston valve 34 separates the interior of the pump barrel 33 into a lower chamber and an upper chamber. The lower chamber is used to pump in the slurry, and the upper chamber is used to pump out the slurry. The slurry enters the upper chamber from the lower chamber through the lower axial flow hole 347, the interior of the valve body 341, and the upper axial flow hole 348, which can effectively dissipate heat, prevent aging of the sealing ring, ensure sealing performance, and prevent leakage of slurry.

[0043] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A slurry adding machine for vinyl, characterized in that: include: frame; A material barrel installed on one side of the frame; the material barrel is used to hold slurry; and The pump assembly is installed on the other side of the frame; the pump assembly includes a feed pipe connected to the bottom of the barrel, a check valve installed inside the feed pipe, a pump body connected to the feed pipe, and a cylinder installed on the top of the frame; the pump body includes a pump barrel, a piston valve coaxially installed inside the pump barrel, a lower shaft connected to the bottom end of the piston valve, and an upper shaft connected to the top end of the piston valve; the bottom end of the pump barrel is connected to the feed pipe downward, and the top end of the pump barrel is connected to the discharge pipe outward; the piston valve includes a valve body arranged in a hollow cylinder, a radially extending inner wall of the valve body, and a plurality of A limit ring protruding inward and a ball installed inside the upper end of the valve body; the valve body has multiple lower axial flow holes and upper axial flow holes in a circumferential array on opposite sides corresponding to the limit ring; the lower axial flow hole corresponds to the lower chamber, and the upper axial flow hole corresponds to the upper chamber; the lower chamber and the upper chamber are connected through the lower axial flow hole, the interior of the valve body, and the upper axial flow hole; the ball is used to abut the limit ring, and the diameter of the ball is larger than the inner diameter of the limit ring to cut off the passage inside the valve body, thereby controlling the connection and disconnection between the lower chamber and the upper chamber.

2. The slurry adding machine for vinyl glue according to claim 1, characterized in that: The piston valve also includes a wear-resistant ring coaxially sleeved on the outer wall of the valve body and sealing rings arranged at opposite ends of the wear-resistant ring; the wear-resistant ring and the limit ring are arranged opposite to each other, and the outer walls of the wear-resistant ring and the sealing ring are used to abut the inner wall of the pump barrel.

3. The slurry adding machine for vinyl glue according to claim 2, characterized in that: The pump barrel includes a barrel body, a lower end cover installed at the bottom of the barrel body, and an upper end cover installed at the top of the barrel body; the outer walls of the wear-resistant ring and the sealing ring are used to abut the inner wall of the barrel body, the lower shaft body passes through the lower end cover, and the upper shaft body passes through the upper end cover and is connected to the piston rod of the cylinder upward.

4. The slurry adding machine for vinyl glue according to claim 3, characterized in that: The lower end cover is connected to the feed pipe downwards, and the upper end cover is connected to the discharge pipe outwards.

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