Double-group glue preparation equipment

Abstract

The invention relates to the technical field of glass fiber tube manufacturing, in particular to double-group glue preparation equipment which comprises a stirring driving mechanism and a mixing reaction cavity mechanism. The stirring driving mechanism is mounted on the mixing reaction cavity mechanism, the stirring driving mechanism and the mixing reaction cavity mechanism are matched to realize low-bubble stirring and mixing of resin and a compounding agent through mechanical linkage, intermittent accurate injection of the compounding agent is controlled at the same time, and anti-deposition stirring is performed on materials in a lower cavity. Bubbles are reduced and low-speed efficiency loss is made up through cooperation of low-speed stirring and annular multi-time injection, small-amount multi-time uniform injection of a compounding agent is achieved through vertical movement of the stirring assembly, the bottom stirring paddle scrapes the bottom to avoid deposition, and the mixing effect is comprehensively improved.

Description

Technical Field

[0001] The invention relates to the technical field of glass fiber tube manufacturing, in particular to a double-component glue dispensing device. Background Art

[0002] In the manufacture of FRP pipes, resin and compounding agents (curing agent and accelerator) need to be mixed. The quality of the mixture directly determines the mechanical properties and density of the product. Existing glue mixing equipment has the following technical pain points:

[0003] To improve mixing efficiency, traditional equipment often uses high-speed stirring, but high-speed shearing can easily cause turbulent air entrainment, resulting in a large number of bubbles mixed into the resin glue; if low-speed stirring is used, although bubbles can be reduced, the mixing efficiency is low and uneven dispersion of the compounding agent is likely to occur; existing equipment mostly uses a one-time centralized injection of the compounding agent. Due to the high viscosity of the resin, the compounding agent is prone to local aggregation to form a high concentration area, resulting in large differences in the curing reaction rate, and the final product is locally over-cured (brittle) or under-cured (insufficient strength); the current stirring effect is poor for the resin glue at the bottom. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a two-component glue mixing equipment to solve the problem raised in the above-mentioned background technology that the mixing bubbles in the glue used in the manufacture of glass fiber reinforced plastic pipes affect the subsequent manufacturing and the injection of the compounding agent is prone to local over-concentration.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A double-component glue dispensing equipment, which includes: a stirring drive mechanism and a mixing reaction chamber mechanism; the stirring drive mechanism is installed on the mixing reaction chamber mechanism, and the two cooperate to achieve low-bubble stirring and mixing of the resin and the compounding agent through mechanical linkage, while controlling the intermittent and precise injection of the compounding agent, and performing anti-sedimentation stirring on the material in the lower cavity; the stirring drive mechanism includes an upper cover body, a motor seat is installed on the upper cover body, a low-speed motor is installed on the top of the motor seat, a spline rod is connected to the working end of the low-speed motor, a guide assembly is provided on the outside of the spline rod, a tension spring reset assembly is connected to the outside of the guide assembly, the tension spring reset assembly is connected between the guide assembly and the upper cover body for resetting the guide assembly, and the bottom of the guide assembly is fixedly connected There is a stirring assembly, which includes a stirring shaft, a bottom stirring paddle and a middle stirring paddle. The stirring shaft is provided with a spline sleeve corresponding to the spline rod, and the stirring shaft is connected to the spline rod through the spline sleeve; the mixing reaction chamber mechanism includes a lower cavity, a base is installed at the bottom of the lower cavity, and a temporary storage chamber is formed between the lower cavity and the base. A control valve disc is in sliding contact with the base, and a vertical rod is connected to the center position of the control valve disc, and the vertical rod is in sliding contact with the stirring shaft. The edge of the control valve disc is in contact with a liquid injection piece, and the liquid injection piece is installed at the bottom of the lower cavity, the control valve disc is connected to the liquid injection piece, and the pin is inserted into the liquid injection piece. The side of the base is connected to a liquid inlet valve, and the outside of the liquid inlet valve is connected to a mixer for compounding agents.

[0007] The upper cover body and the lower cavity body are connected by bolts. The lower cavity body is used to contain resin and compounding agents that need to be stirred and mixed. The guide assembly includes a guide plate and a guide roller. The guide plate is provided with an arc-shaped guide rail, and the guide plate is in sliding contact with the guide roller through the arc-shaped guide rail.

[0008] When the stirring assembly and the spline rod are driven to rotate by the low-speed motor, the arc-shaped guide rail and the guide roller of the guide plate cooperate to make the stirring assembly move up and down regularly. Moreover, since the stirring main shaft is connected to the spline sleeve and the spline rod, the stirring assembly is still driven to rotate by the low-speed motor when it moves up and down.

[0009] The tension spring reset assembly includes an upper spring ring and a lower spring ring. A plurality of tension spring members are connected between the upper spring ring and the lower spring ring, and the plurality of tension spring members are annularly distributed between the upper spring ring and the lower spring ring.

[0010] The upper spring ring is rotatably connected to the guide plate, the lower spring ring is rotatably connected to the upper cover body, and the tension spring reset assembly is used for always pulling the arc guide rail of the guide plate to contact the guide roller.

[0011] The middle stirring paddle and the bottom stirring paddle are fixedly connected to the surface of the stirring main shaft. The middle stirring paddle and the bottom stirring paddle are used to stir in the lower cavity when the stirring main shaft rotates, and the bottom stirring paddle is used to scrape off the material deposited on the bottom of the inner wall of the lower cavity when the stirring main shaft moves up and down. The stirring main shaft is in sliding contact with the upper cover body through the through hole.

[0012] A spring is provided between the control valve disc and the base, and the spring is used to reset the control valve disc.

[0013] The lower cavity is provided with a groove corresponding to the stirring main shaft, and a rubber ring for sealing is provided in the groove. The liquid injection pieces are provided in multiple groups, and the multiple groups of liquid injection pieces are distributed in a ring shape at the bottom of the inner wall of the lower cavity.

[0014] When the edge of the control valve disc contacts the bottom of the liquid injection piece and the pin is inserted into the liquid injection piece, the temporary storage chamber is not connected with the space inside the lower cavity. When the control valve disc is pushed downward by the stirring main shaft, the edge of the control valve disc is separated from the contact with the liquid injection piece, and the pin is pulled out of the liquid injection piece. At this time, the temporary storage chamber is connected with the space inside the lower cavity.

[0015] The liquid inlet valve is used to inject the compounding agent in the compounding agent mixer into the temporary storage chamber, and the pressure of the compounding agent in the temporary storage chamber is greater than the pressure in the lower cavity.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The stirring assembly is driven by a low-speed motor to rotate, and the annularly distributed liquid injection parts are used to achieve uniform injection of the compounding agent, avoiding the turbulent air entrainment caused by traditional high-speed stirring or centralized pouring. At the same time, the low-speed characteristic of the stirring assembly reduces the air entrapment during the shearing process, significantly reducing the bubble content in the resin glue, and providing a dense matrix structure for the FRP pipe fittings. Although the low-speed stirring loses the stirring efficiency, the multiple injections of the compounding agent in the annular shape have a good mixing effect, can improve the stirring efficiency, and make up for the defects of low-speed stirring;

[0018] 2. Relying on the periodic up and down movement of the stirring component and the on and off control of the valve disc through mechanical linkage, the compounding agent is injected into the resin in a "small amount and multiple times" manner, avoiding the problem of local excessive concentration caused by a large amount of injection at one time. The annular distribution of the liquid injection parts ensures that the compounding agent is evenly diffused along the bottom of the cavity. Combined with the instant stirring of the bottom stirring paddle, the mixing uniformity of the compounding agent and the resin is greatly improved, and the local differences in the curing reaction are reduced;

[0019] 3. The bottom stirring paddle in the stirring assembly moves up and down with the stirring main shaft, and can rotate directly in contact with the bottom of the lower cavity to thoroughly scrape off the deposited resin and filler, avoiding the uneven mixing caused by the static deposition of the bottom material in traditional stirring equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the overall bottom of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the guide assembly part of the present invention;

[0023] Figure 4 It is a structural schematic diagram of the tension spring reset assembly part of the present invention;

[0024] Figure 5 The structure of the overall cross-section of the present invention is schematically shown Figure 1 ;

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at A in the middle;

[0026] Figure 7 The structure of the overall cross-section of the present invention is schematically shown Figure 2 ;

[0027] Figure 8 The structure of the overall cross-section of the present invention is schematically shown Figure 3 ;

[0028] Figure 9 For the present invention Figure 8 Schematic diagram of the structure at point B.

[0029] In the figure: 1. stirring drive mechanism; 11. upper cover; 12. motor base; 13. low-speed motor; 14. spline rod; 15. guide assembly; 151. guide plate; 152. guide roller; 16. tension spring reset assembly;

[0030] 161. Upper spring ring; 162. Lower spring ring; 163. Tension spring; 17. Stirring assembly; 171. Bottom stirring paddle;

[0031] 172. Middle stirring paddle; 173. Stirring main shaft; 2. Mixing reaction chamber mechanism; 21. Lower chamber; 22. Base; 23. Control valve disc; 24. Temporary storage chamber; 241. Liquid inlet valve; 25. Latch; 26. Liquid injection fitting. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] An embodiment provided by the present invention:

[0034] refer to Figure 1 - Figure 3 As shown, a two-component glue dispensing device, which includes:

[0035] The stirring drive mechanism 1 and the mixing reaction chamber mechanism 2 cooperate to achieve low-bubble stirring and mixing of the resin and the compounding agent through mechanical linkage, thereby completing the precise preparation of the two-component (resin and compounding agent) rubber material, while controlling the intermittent precise injection of the compounding agent and performing anti-sedimentation stirring on the material in the lower cavity 21;

[0036] refer to Figure 3 and Figure 4 As shown, the stirring drive mechanism 1 is installed on the mixing reaction chamber mechanism 2, and the stirring drive mechanism 1 is used to stir the resin and the compounding agent. The stirring drive mechanism 1 includes an upper cover body 11, a motor base 12 is installed on the upper cover body 11, and a low-speed motor 13 is installed on the top of the motor base 12. The working end of the low-speed motor 13 is connected to a spline rod 14, and a guide assembly 15 is provided on the outside of the spline rod 14. The outside of the guide assembly 15 is connected to a tension spring reset assembly 16, and the tension spring reset assembly 16 is connected between the guide assembly 15 and the upper cover body 11 for resetting the guide assembly 15. A stirring assembly 17 is fixedly connected to the bottom of the guide assembly 15, and the stirring assembly 17 includes a stirring main shaft 173, a bottom stirring paddle 171 and a middle stirring paddle 172. The stirring main shaft 173 is provided with a spline sleeve corresponding to the spline rod 14, and the stirring main shaft 173 is connected to the spline rod 14 through the spline sleeve;

[0037] refer to Figure 5 and Figure 6 As shown, the mixing reaction chamber mechanism 2 includes a lower cavity 21, a base 22 is installed at the bottom of the lower cavity 21, and a temporary storage chamber 24 is formed between the lower cavity 21 and the base 22. A control valve disc 23 is in sliding contact with the base 22, and a vertical rod is connected to the center position of the control valve disc 23, and the vertical rod is in sliding contact with the stirring main shaft 173. The edge of the control valve disc 23 is in contact with a liquid injection piece 26, and the liquid injection piece 26 is installed at the bottom of the lower cavity 21. The control valve disc 23 is connected to the liquid injection piece 26, and the pin 25 is inserted into the liquid injection piece 26. The side of the base 22 is connected to a liquid inlet valve 241, and the outside of the liquid inlet valve 241 is connected to a mixer for the compounding agent.

[0038] The upper cover 11 and the lower cavity 21 are connected by bolts. The lower cavity 21 is used to contain resin and compounding agents that need to be stirred and mixed. The guide assembly 15 includes a guide plate 151 and a guide roller 152. The guide plate 151 is provided with an arc-shaped guide rail, and the guide plate 151 is in sliding contact with the guide roller 152 through the arc-shaped guide rail. When the stirring assembly 17 and the spline rod 14 are driven to rotate by the low-speed motor 13, the arc-shaped guide rail and the guide roller 152 of the guide plate 151 cooperate to make the stirring assembly 17 move up and down regularly. Since the stirring main shaft 173 is connected to the spline sleeve and the spline rod 14, the stirring assembly 17 is still driven to rotate by the low-speed motor 13 when it moves up and down.

[0039] The tension spring reset assembly 16 includes an upper spring ring 161 and a lower spring ring 162. A plurality of tension spring members 163 are connected between the upper spring ring 161 and the lower spring ring 162. The plurality of tension spring members 163 are annularly distributed between the upper spring ring 161 and the lower spring ring 162. The upper spring ring 161 is rotatably connected to the guide plate 151, and the lower spring ring 162 is rotatably connected to the upper cover 11. The tension spring reset assembly 16 is used to always pull the curved guide rail of the guide plate 151 to contact the guide roller 152.

[0040] The middle stirring paddle 172 and the bottom stirring paddle 171 are fixedly connected to the surface of the stirring main shaft 173. The middle stirring paddle 172 and the bottom stirring paddle 171 are used to stir in the lower cavity 21 as the stirring main shaft 173 rotates, and the bottom stirring paddle 171 is used to scrape up the material deposited on the bottom of the inner wall of the lower cavity 21 as the stirring main shaft 173 moves up and down. The stirring main shaft 173 is in sliding contact with the upper cover body 11 through the through hole.

[0041] A spring is provided between the control valve disc 23 and the base 22, and the spring is used to reset the control valve disc 23. A groove is provided in the lower cavity 21 corresponding to the stirring main shaft 173, and a rubber ring for sealing is provided in the groove. There are multiple groups of liquid injection pieces 26, and the multiple groups of liquid injection pieces 26 are distributed in a ring shape at the bottom of the inner wall of the lower cavity 21.

[0042] When the edge of the control valve disc 23 contacts the bottom of the liquid injection piece 26 and the latch 25 is inserted into the liquid injection piece 26, the temporary storage chamber 24 is not connected with the space in the lower cavity 21. When the control valve disc 23 is pushed downward by the stirring main shaft 173, the edge of the control valve disc 23 is separated from the contact with the liquid injection piece 26, and the latch 25 is pulled out of the liquid injection piece 26. At this time, the temporary storage chamber 24 is connected with the space in the lower cavity 21. The liquid inlet valve 241 is used to inject the compounding agent in the compounding agent mixer into the temporary storage chamber 24. The pressure of the compounding agent in the temporary storage chamber 24 is greater than the pressure in the lower cavity 21.

[0043] Working principle:

[0044] Before starting the equipment, resin must be injected directly into the lower cavity 21. The curing agent and accelerator (compounding agent) are premixed in the pre-mixer and then transferred to the temporary storage chamber 24 through the liquid inlet valve 241 for standby use. At this time, the stirring drive mechanism 1 is bolted to the lower cavity 21 via the upper cover 11 to form a closed mixing space. The control valve disc 23 is pushed up by the spring built into the base 22, and its edge is tightly attached to the bottom of the liquid injection pipe 26. The latch 25 is inserted into the liquid injection pipe 26, completely isolating the temporary storage chamber 24 from the lower cavity 21, ensuring that the compounding agent is temporarily stored without leakage.

[0045] After the low-speed motor 13 is started, power is transmitted to the stirring main shaft 173 via the splined rod 14 (the splined sleeve and splined rod 14 cooperate to ensure torque transmission while allowing axial relative movement), driving the stirring assembly 17 to rotate as a whole. During this process, the guide plate 151 rotates synchronously with the stirring main shaft 173, and its curved guide rail is always in close contact with the guide roller 152 (maintained by the pulling force of the tension spring reset assembly 16, and the annular tension spring member 163 between the upper spring ring 161 and the lower spring ring 162 provides continuous tension), forcing the stirring assembly 17 to periodically move up and down along the axial direction while rotating:

[0046] When the stirring assembly 17 is in the upper position (such as Figure 5 ), the bottom stirring paddle 171 maintains a certain gap with the bottom wall of the lower cavity 21, and the middle stirring paddle 172 performs preliminary stirring on the resin to avoid static sedimentation;

[0047] As the guide plate 151 rotates, the arc-shaped guide rail changes its trajectory and pushes the stirring assembly 17 downward gradually. The lower end of the stirring main shaft 173 contacts the central vertical rod of the control valve disc 23 and continuously applies pressure (such as Figure 7 );

[0048] When the stirring assembly 17 reaches the lower position (such as Figure 8 ), the bottom stirring paddle 171 directly contacts the bottom wall of the lower cavity 21, thoroughly scraping away the deposited resin during rotation. Simultaneously, the stirring spindle 173 pushes the control valve disc 23 downward, overcoming the elastic force of the spring on the base 22. At this point, the edge of the control valve disc 23 disengages from the liquid injection passage 26, and the latch 25 is withdrawn from the liquid injection passage 26. The temporary storage chamber 24 is connected to the lower cavity 21 via the annular liquid injection passage 26. Because the pre-stored pressure of the compounding agent in the temporary storage chamber 24 is greater than the resin pressure in the lower cavity 21, the compounding agent is evenly sprayed into the lower cavity 21 along the annular liquid injection passage 26, falling directly into the stirring area of ​​the bottom stirring paddle 171, and rapidly blending with the resin under the action of the rotating shear force.

[0049] After completing one injection, the arc-shaped guide rail of the guide plate 151 enters the lifting section as it rotates, and the stirring assembly 17 moves upward and resets under the tension of the tension spring reset assembly 16: the stirring main shaft 173 is released from the pressure on the control valve disc 23, and the control valve disc 23 rises under the action of the spring of the base 22, and the pin 25 is reinserted into the injection passage 26, the temporary storage chamber 24 is closed again, and the injection stops.

[0050] When the above process is cyclically carried out, the low speed characteristic of the low-speed motor 13 (to avoid high-speed stirring from involving bubbles) is combined with the up and down movement of the stirring assembly 17 (to solve the bottom sedimentation), so that the resin is always in a gentle and comprehensive stirring state; and the compounding agent is "intermittently injected" (triggered once each time it moves down) through the annular liquid injection passage 26, which not only realizes the precise addition of "small amounts and multiple times", but also greatly improves the uniformity of the compounding agent and the resin by virtue of the instant mixing of the annularly distributed injection points and the bottom stirring paddle 171. Compared with the traditional centralized pouring or single-point dripping, this design optimizes the mixing effect from three dimensions: annular liquid injection avoids excessive local concentration, low-speed rotation reduces turbulent bubbles, and up and down movement scrapes the bottom to solve the filler sedimentation, and finally provides the FRP pipe fittings with bubble-free and uniformly cured resin glue.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A two-component glue dispensing device, characterized in that: include: A stirring drive mechanism and a mixing reaction chamber mechanism; the stirring drive mechanism is mounted on the mixing reaction chamber mechanism, and the two cooperate through mechanical linkage to achieve low-bubble stirring and mixing of the resin and the compounding agent, while controlling the intermittent and precise injection of the compounding agent and performing anti-sedimentation stirring on the material in the lower chamber; The stirring drive mechanism includes an upper cover body, a motor seat is installed on the upper cover body, a low-speed motor is installed on the top of the motor seat, a working end of the low-speed motor is connected to a spline rod, a guide assembly is provided on the outside of the spline rod, a tension spring reset assembly is connected to the outside of the guide assembly, the tension spring reset assembly is connected between the guide assembly and the upper cover body for resetting the guide assembly, a stirring assembly is fixedly connected to the bottom of the guide assembly, the stirring assembly includes a stirring main shaft, a bottom stirring paddle and a middle stirring paddle, the stirring main shaft is provided with a spline sleeve corresponding to the spline rod, and the stirring main shaft is connected to the spline rod through the spline sleeve; The mixing reaction chamber mechanism includes a lower cavity, a base is installed at the bottom of the lower cavity, a temporary storage cavity is formed between the lower cavity and the base, a control valve disc is in sliding contact with the base, the center position of the control valve disc is connected to a vertical rod, and the vertical rod is in sliding contact with the stirring main shaft, the edge of the control valve disc is in contact with a liquid injection piece, the liquid injection piece is installed at the bottom of the lower cavity, the control valve disc is connected to the liquid injection piece, and the pin is inserted into the liquid injection piece, the side of the base is connected to a liquid inlet valve, and the outside of the liquid inlet valve is connected to a mixer for compounding agents.

2. A two-component glue dispensing device according to claim 1, characterized in that: The upper cover body and the lower cavity body are connected by bolts. The lower cavity body is used to contain resin and compounding agents that need to be stirred and mixed. The guide assembly includes a guide plate and a guide roller. The guide plate is provided with an arc-shaped guide rail, and the guide plate is in sliding contact with the guide roller through the arc-shaped guide rail.

3. The double-component glue dispensing equipment according to claim 1, characterized in that: When the stirring assembly and the spline rod are driven to rotate by the low-speed motor, the arc-shaped guide rail and the guide roller of the guide plate cooperate to make the stirring assembly move up and down regularly. Moreover, since the stirring main shaft is connected to the spline sleeve and the spline rod, the stirring assembly is still driven to rotate by the low-speed motor when it moves up and down.

4. The double-component glue dispensing equipment according to claim 1, characterized in that: The tension spring reset assembly includes an upper spring ring and a lower spring ring. A plurality of tension spring members are connected between the upper spring ring and the lower spring ring, and the plurality of tension spring members are annularly distributed between the upper spring ring and the lower spring ring.

5. The double-component glue dispensing equipment according to claim 4, characterized in that: The upper spring ring is rotatably connected to the guide plate, the lower spring ring is rotatably connected to the upper cover body, and the tension spring reset assembly is used for always pulling the arc guide rail of the guide plate to contact the guide roller.

6. The two-component glue dispensing equipment according to claim 1, characterized in that: The middle stirring paddle and the bottom stirring paddle are fixedly connected to the surface of the stirring main shaft. The middle stirring paddle and the bottom stirring paddle are used to stir in the lower cavity when the stirring main shaft rotates, and the bottom stirring paddle is used to scrape off the material deposited on the bottom of the inner wall of the lower cavity when the stirring main shaft moves up and down. The stirring main shaft is in sliding contact with the upper cover body through the through hole.

7. The double-component glue dispensing equipment according to claim 1, characterized in that: A spring is provided between the control valve disc and the base, and the spring is used to reset the control valve disc.

8. The two-component glue dispensing equipment according to claim 1, characterized in that: The lower cavity is provided with a groove corresponding to the stirring main shaft, and a rubber ring for sealing is provided in the groove. The liquid injection pieces are provided in multiple groups, and the multiple groups of liquid injection pieces are distributed in a ring shape at the bottom of the inner wall of the lower cavity.

9. The double-component glue dispensing equipment according to claim 1, characterized in that: When the edge of the control valve disc contacts the bottom of the liquid injection piece and the pin is inserted into the liquid injection piece, the temporary storage chamber is not connected with the space inside the lower cavity. When the control valve disc is pushed downward by the stirring main shaft, the edge of the control valve disc is separated from the contact with the liquid injection piece, and the pin is pulled out of the liquid injection piece. At this time, the temporary storage chamber is connected with the space inside the lower cavity.

10. The double-component glue dispensing equipment according to claim 9, characterized in that: The liquid inlet valve is used to inject the compounding agent in the compounding agent mixer into the temporary storage chamber, and the pressure of the compounding agent in the temporary storage chamber is greater than the pressure in the lower cavity.

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