Pressure plate reflux pump

Abstract

According to the utility model, through the matching arrangement of the rotating assembly and the sealing assembly, the stable glue feeding and discharging effect can be realized, the glue backflow can be realized, and the glue discharging effect can be realized when the glue needs to be discharged, so that the integration of backflow, flow guide and glue discharging is realized according to the advantages of realizing the integration of backflow, flow guide and glue discharging. The power shaft and the power gear are matched with the driven shaft and the driven gear to complete glue feeding and discharging and backflow operation of glue, and the upper cover, the power middle cover and the glue feeding bottom cover are matched to play a role in sealing connection, so that the glue feeding bottom cover can be connected with a glue barrel below; the pressure plate reflux pump comprises a pressing cover plate, a sealing ring is connected to the bottom of the pressing cover plate in a bolted mode, a power shaft is installed on the inner side wall of the sealing ring, a key strip is fixedly installed on the outer side of the power shaft, a sealing assembly used for sealing is arranged at the bottom of the sealing ring, and a rotating assembly used for feeding and discharging glue is arranged in the sealing assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of glue pumps, in particular to a pressure plate reflux pump. Background Technique

[0002] Hot melt adhesive is a kind of plastic adhesive. Its physical state changes with the temperature within a certain temperature range, while its chemical properties remain unchanged. It is non-toxic and odorless, belonging to an environment-friendly chemical product. Because the product itself is solid, it is convenient for packaging, transportation, storage, solvent-free, pollution-free, and non-toxic; and it is favored because of its simple production process, high added value, large bonding strength, and fast speed. PUR hot melt adhesive is a 100% solid fusible polymer without solvent and moisture; it is solid at normal temperature and becomes a liquid that can flow and has a certain viscosity when heated and melted to a certain temperature. The melted PUR hot melt adhesive is light brown or white. PUR hot melt adhesive is composed of basic resin, tackifier, viscosity regulator, antioxidant and other components. Most of the pressure plate pumps on the market are high-pressure pressure plate pumps, which are composed of a pressure plate, a pressure rod, a glue supply cavity, a pneumatic motor, and a glue supply pipe. The pressure plate enters the material barrel and moves up and down with the glue surface. The glue in the barrel is lifted up and down by the pressure rod and enters the glue supply cavity. The one-way flow structure in the glue supply cavity restricts the glue from flowing back.

[0003] In view of the above technical problems, as disclosed in the patent with the publication number CN220444281U, a pressure plate pump is provided. During the operation of the pressure plate pump, in order to ensure the fluidity of the glue, a heating device is generally provided on the glue supply pipe. However, when the glue is in the pressure plate pump, the temperature drops rapidly, and the fluidity is poor, affecting the work efficiency. Through the setting of the first temperature measuring instrument and the first heating element, the first heating element generates heat, and the first temperature measuring instrument then detects the temperature of the heating sleeve in real time and feeds it back to the first heating element, thereby adjusting the temperature in real time and improving the accuracy of the temperature.

[0004] The above patent also has the following deficiencies: In the actual use process, the disadvantages of the inability to realize the integration of reflux, diversion, and glue discharging cannot be achieved, so that the effect of stable processing of hot melt adhesive cannot be achieved. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a pressure plate reflux pump, which has the advantage of being unable to realize the integration of reflux, diversion, and glue discharging of hot melt adhesive during the processing of hot melt adhesive, so that the control of hot melt adhesive can be achieved during its operation, in order to solve the problems raised in the above background technique.

[0006] To achieve the above object, the utility model provides the following technical solutions: a pressure plate reflux pump, including a pressing cover plate, a sealing ring is bolted to the bottom of the pressing cover plate, a power shaft is installed on the inner side wall of the sealing ring, a key bar is fixedly installed on the outer side of the power shaft, a sealing assembly for sealing is arranged at the bottom of the sealing ring, and a rotating assembly for glue inlet and outlet is arranged inside the sealing assembly;

[0007] The power gear in the rotating assembly is fixedly installed on the outer side of the power shaft, a driven gear is meshed with one side of the power shaft, and a driven shaft is fixedly installed on the inner side wall of the driven gear.

[0008] Preferably, the sealing assembly includes a glue outlet upper cover, and the glue outlet upper cover is bolted to the bottom end of the sealing ring.

[0009] Preferably, a power middle cover is bolted to the bottom of the glue outlet upper cover, and a glue inlet bottom cover is bolted to the bottom of the power middle cover.

[0010] Preferably, an air inlet hole is formed on the surface of the power middle cover, and fitting grooves are formed at both the top and the bottom of the power middle cover.

[0011] Preferably, one end of the power gear is located inside the fitting groove, and the driven gear is arranged at the other end of the inner cavity of the fitting groove.

[0012] Preferably, the bottom end of the power shaft is rotationally connected to the bottom end of the glue inlet bottom cover, the top end of the driven shaft is rotationally connected to the bottom of the glue outlet upper cover, and the bottom end of the driven shaft is rotationally connected to the glue inlet bottom cover.

[0013] Preferably, a pressure steel ball is embedded on one side of the glue outlet upper cover, and a pressure spring is fixedly installed at one end of the pressure steel ball.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] Through the combined setting of the rotating assembly and the sealing assembly, the utility model can achieve the function of stable glue inlet and outlet, can realize the reflux of the colloid, and can achieve the effect of glue outlet when glue outlet is required. Based on the above advantages of realizing reflux, diversion and glue outlet integration, the power shaft and the power gear cooperate with the driven shaft and the driven gear to complete the glue inlet, outlet and reflux operations of the colloid. The cooperation of the upper cover, the power middle cover and the glue inlet bottom cover is convenient for playing a role of sealing connection, so as to be connected with the glue bucket below.

[0016] Other features and advantages of the utility model will be described in the following specification, and, in part, will be obvious from the specification, or will be understood by implementing the utility model. The objectives and other advantages of the utility model can be realized and obtained by the structure pointed out in the specification and the drawings. Brief Description of the Drawings

[0017] Figure 1 This is a schematic structural diagram of the present utility model.

[0018] In the figure: 1. Compression cover plate; 2. Key strip; 3. Power shaft; 4. Sealing ring; 5. Glue outlet upper cover; 6. Pressure steel ball; 7. Pressure spring; 8. Power gear; 9. Driven gear; 10. Driven shaft; 11. Power middle cover; 12. Glue inlet bottom cover. Specific embodiments

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] The present utility model provides a pressure plate reflux pump, which includes a compression cover plate 1. A sealing ring 4 is bolted to the bottom of the compression cover plate 1. A power shaft 3 is installed on the inner side wall of the sealing ring 4. A key strip 2 is fixedly installed on the outer side of the power shaft 3. A sealing assembly for sealing is arranged at the bottom of the sealing ring 4, and a rotating assembly for inlet and outlet of glue is arranged inside the sealing assembly;

[0021] A power gear 8 in the rotating assembly is fixedly installed on the outer side of the power shaft 3. A driven gear 9 is meshed with one side of the power shaft 3. A driven shaft 10 is fixedly installed on the inner side wall of the driven gear 9.

[0022] It realizes the function of stable inlet and outlet of glue, and can realize the reflux of the colloid. At the same time, it realizes the effect of discharging glue when discharging glue is required. Based on the above advantages of realizing reflux, pressure plate and discharging glue integration, the cooperation of the power shaft and the power gear with the driven shaft and the driven gear is used to complete the inlet and outlet and reflux operations of the colloid. The cooperation of the upper cover, the power middle cover and the glue inlet bottom cover is convenient for playing a role in sealing connection, so as to be able to connect with the glue bucket below.

[0023] Among them, the sealing assembly includes a glue outlet upper cover 5. The glue outlet upper cover 5 is bolted to the bottom end of the sealing ring 4. The glue outlet upper cover 5 is used to play a role in connecting up and down, and can also play the advantage of discharging glue. A glue outlet hole is opened in the middle of the back surface of the glue outlet upper cover 5 for cutting and discharging glue operations.

[0024] As shown in the figure, a power middle cover 11 is bolted to the bottom of the glue outlet upper cover 5. An inlet glue bottom cover 12 is bolted to the bottom of the power middle cover 11. The power middle cover 11 is used to limit and adapt the power gear 8 and the driven shaft 10, and the inlet glue bottom cover 12 is beneficial to play a role in bottom connection.

[0025] Among them, air inlet holes are provided on the surface of the power middle cover 11, and fitting grooves are provided at both the top and bottom of the power middle cover 11. The air inlet holes are provided to communicate with an external inflating device, mainly to ensure the pressure balance in the barrel.

[0026] The air inlet holes can be assisted in air intake through a connecting pipe valve, so that the amount of intake air pressure can also be controlled through the pipe valve.

[0027] In addition, one end of the power gear 8 is located inside the fitting groove, and the driven gear 9 is arranged at the other end of the inner cavity of the fitting groove, which is convenient for the stable meshing between the power gear 8 and the driven gear 9, and at the same time, there is space for glue inlet, outlet and backflow.

[0028] In addition, the bottom end of the power shaft 3 is rotationally connected to the bottom end of the glue inlet bottom cover 12, the top end of the driven shaft 10 is rotationally connected to the bottom of the glue outlet upper cover 5, and the bottom end of the driven shaft 10 is rotationally connected to the glue inlet bottom cover 12, which is convenient for realizing the stable rotational support of the power shaft 3 and the driven shaft 10, so as to facilitate their stable operation.

[0029] Among them, a pressure steel ball 6 is embedded on one side of the glue outlet upper cover 5, and a pressure spring 7 is fixedly installed at one end of the pressure steel ball 6. The cooperation of the pressure steel ball 6 and the pressure spring 7 can play an elastic pushing and sealing role.

[0030] A motor is also provided at the top end of the key bar 2. Using the motor as the output power source, the power shaft 3 can be driven to rotate through the motor. During the rotation of the power shaft 3, the power gear 8 can be driven to rotate, and the power gear 8 can drive the driven gear 9 to rotate through the meshing connection relationship. During the rotation of the driven gear 9, the driven shaft 10 will be driven to rotate together. At this time, the glue outlet upper cover 5, the power middle cover 11 and the glue inlet bottom cover 12 are in a bolted installation state to ensure that there is no leakage during operation;

[0031] In addition, the glue inlet bottom cover 12 is mainly used to be installed on an external glue barrel. Through the pressure during gear rotation, it completes the functions of glue inlet, glue outlet and backflow. At this time, the glue should be discharged from the glue outlet hole on the back. The glue inlet bottom cover 12 is also provided with a glue inlet hole, which is mainly used to communicate with the glue barrel through a pipeline to realize its glue inlet operation;

[0032] When it is working and in a normal glue outlet state during the working process:

[0033] When the pressure inside the glue barrel is high, the colloid can return to the glue bucket through the backflow channel. When the bucket needs to be lifted, air is inflated into the bucket to balance the pressure inside and outside the bucket so that the bucket can be lifted;

[0034] In the actual working process based on the above, the driving of the motor causes the realization of the power output effect. Furthermore, the motor drives the power shaft 3 and the chain 2 to rotate together, thereby driving the power gear 8 to rotate. When the power gear 8 rotates, the driven gear 9 is driven to rotate through the engagement of the teeth. When the driven gear 9 and the power gear 8 rotate, according to the slots provided in the mating power middle cover 11 that are adapted to both of them, the effects of glue feeding, glue discharging, and reflux can be achieved during rotation, ensuring the integrated setting of glue feeding, glue discharging, guiding, and reflux. The above technical effects can be achieved without additionally configuring other equipment.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Pressure plate reflux pump, characterized in that: It includes a pressing cover plate (1). A sealing ring (4) is bolted to the bottom of the pressing cover plate (1). A power shaft (3) is installed on the inner side wall of the sealing ring (4). A key bar (2) is fixedly installed on the outer side of the power shaft (3). A sealing assembly for sealing is arranged at the bottom of the sealing ring (4). A rotating assembly for glue inlet and outlet is arranged inside the sealing assembly. A power gear (8) in the rotating assembly is fixedly installed on the outer side of the power shaft (3). A driven gear (9) is meshed with one side of the power shaft (3). A driven shaft (10) is fixedly installed on the inner side wall of the driven gear (9).

2. The pressure plate reflux pump according to claim 1, characterized in that: The sealing assembly includes a glue outlet upper cover (5). The glue outlet upper cover (5) is bolted to the bottom end of the sealing ring (4).

3. The pressure plate reflux pump according to claim 2, characterized in that: A power middle cover (11) is bolted to the bottom of the glue outlet upper cover (5). A glue inlet bottom cover (12) is bolted to the bottom of the power middle cover (11).

4. The pressure plate reflux pump according to claim 3, wherein: An air inlet hole is formed on the surface of the power middle cover (11). Matching grooves are formed at both the top and the bottom of the power middle cover (11).

5. The pressure plate reflux pump according to claim 4, characterized in that: One end of the power gear (8) is located inside the matching groove, and the driven gear (9) is arranged at the other end inside the cavity of the matching groove.

6. The pressure plate reflux pump according to claim 1, characterized in that: The bottom end of the power shaft (3) is rotationally connected to the bottom end of the glue inlet bottom cover (12). The top end of the driven shaft (10) is rotationally connected to the bottom of the glue outlet upper cover (5), and the bottom end of the driven shaft (10) is rotationally connected to the glue inlet bottom cover (12).

7. The pressure plate reflux pump according to claim 3, characterized in that: A pressure steel ball (6) is embedded in one side of the glue outlet upper cover (5). A pressure spring (7) is fixedly installed at one end of the pressure steel ball (6).

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