A precise mixing device for homogeneous particleboard adhesive

Abstract

This utility model discloses a device for precise proportioning of homogeneous particleboard adhesive, comprising: a mixing drum, an internal mixing assembly, a hydraulic discharge assembly at the top of the mixing drum, an anti-clogging assembly and a one-way feeding valve assembly, the hydraulic discharge assembly including a dispensing cylinder, a pressure plate slidably mounted on the inner wall of the dispensing cylinder, a vertical rod fixedly mounted on the top of the pressure plate, an L-shaped plate fixedly mounted on the top of the vertical rod, a connecting rod fixedly mounted on the lower surface of one end of the L-shaped plate, an exhaust plate fixedly mounted on the bottom end of the connecting rod, a housing fixedly mounted on the top of the dispensing cylinder, and the exhaust plate slidably mounted on the inner wall of the housing. Through the above structure, precise proportioning of the adhesive is effectively achieved, while simultaneously ensuring smooth material output and improved performance.

Description

Technical Field

[0001] This utility model relates to the field of proportioning device technology, and in particular to a precise proportioning device for homogeneous particleboard adhesive. Background Technology

[0002] Particleboard is a type of wood-based panel product, also known as chipboard. It is made from branches, fast-growing wood, and wood chips cut into pieces of a certain size. It is mainly used in furniture manufacturing and construction industries. Particleboard has the characteristics of uniform structure and good processing performance.

[0003] Currently, in the production of particleboard, wood chips and adhesives are mixed and stirred, and then pressed at a certain temperature. When preparing the adhesive, a proportioning device is needed to measure the proportions of the raw materials. However, most proportioning devices do not have a complete and precise control device. Traditional proportioning devices determine the amount added by the opening time of an electric valve. This can easily lead to a decrease in the flow rate at the outlet as the raw materials in the mixing tank decrease. If the amount added is determined by the opening time of an electronic valve, the proportioning cannot be accurately measured, which greatly reduces the accuracy of the proportioning and results in poor performance. Utility Model Content

[0004] The purpose of this invention is to provide a precise proportioning device for homogeneous particleboard adhesive. This addresses the current problem in particleboard production, where wood chips and adhesives are mixed and stirred before being pressurized at a specific temperature. While a proportioning device is needed to measure the proportions of the raw materials, most traditional devices lack precise quantity control. Traditional devices determine the amount added by controlling the opening duration of an electric valve, which can lead to a decrease in the flow rate at the outlet as the amount of material in the mixing tank decreases. Furthermore, using an electronic valve to determine the amount adds results in inaccurate proportioning, significantly reducing the accuracy and leading to poor performance.

[0005] To achieve the above objectives, a device for precise proportioning of homogeneous particleboard adhesive is provided, comprising: a mixing drum, wherein a mixing component is provided inside the mixing drum, and a hydraulic discharge component is provided at the top of the mixing drum, wherein an anti-clogging component and a one-way feeding valve component are provided on the hydraulic discharge component;

[0006] The hydraulic discharge assembly includes a dispensing cylinder, a pressure plate slidably mounted on the inner wall of the dispensing cylinder, a vertical rod fixedly mounted on the top of the pressure plate, an L-shaped plate fixedly mounted on the top of the vertical rod, a connecting rod fixedly mounted on the lower surface of one end of the L-shaped plate, an exhaust plate fixedly mounted on the bottom of the connecting rod, a housing fixedly mounted on the top of the dispensing cylinder, the exhaust plate slidably mounted on the inner wall of the housing, an electric push rod fixedly mounted on the inner wall of the bottom of the housing, the output shaft of the electric push rod fixedly mounted on the bottom of the exhaust plate, an exhaust hole opened on the outer wall of the housing, the connecting rod passing through a through hole opened on the top of the housing, the vertical rod passing through a through hole opened on the top of the dispensing cylinder, an installation groove opened on the top of the mixing cylinder, the dispensing cylinder fixedly mounted on the inner wall of the installation groove, an electric valve provided at the discharge port at the bottom of the dispensing cylinder, and graduation lines provided on the outer wall of the dispensing cylinder.

[0007] According to the homogeneous particleboard adhesive precise proportioning device, the mixing assembly includes a motor, which is fixedly installed on the top of the mixing drum, a mixing rod is fixedly installed on the output shaft of the motor, and a mixing blade is fixedly installed on the side wall of the mixing rod.

[0008] According to the homogeneous particleboard adhesive precise mixing device, the anti-clogging component includes a protective cover and a drive rod. The protective cover is fixedly installed on the inner wall of the mixing cylinder by a support rod. A second bevel gear is rotatably installed on the inner top of the protective cover, and a long rod is fixedly installed on the outer wall of the second bevel gear.

[0009] According to the aforementioned homogeneous particleboard adhesive precise proportioning device, a ring is fixedly installed on the outer wall of the long rod, a feeding blade is fixedly installed on the outer wall of the ring, one end of the drive rod passes through a through hole opened on the side wall of the protective cover, the other end of the drive rod passes through a through hole opened on the side wall of the dispensing cylinder, and a first bevel gear is fixedly installed on one end of the drive rod.

[0010] According to the homogeneous particleboard adhesive precise mixing device, the first bevel gear and the second bevel gear are meshed together, a gear is fixedly installed at the other end of the drive rod, and a rack is fixedly installed on the lower surface of the other end of the L-shaped plate, and the rack is meshed with the gear.

[0011] According to the homogeneous particleboard adhesive precise proportioning device, the one-way feeding valve assembly includes a baffle, and a sealing ring, a tube and a spring rod are fixedly installed on the top of the baffle.

[0012] According to the aforementioned homogeneous particleboard adhesive precise proportioning device, a limiting ring is fixedly installed on the inner wall of the insertion tube, a discharge hole is opened on the outer wall of the insertion tube, a spring groove and a sealing groove are opened at the bottom of the pressure plate, and the top end of the spring rod is fixedly installed on the inner wall of the spring groove.

[0013] According to the homogeneous particleboard adhesive precise mixing device, the outer wall of the pressure plate is provided with a slot, and the inner wall of the slot is slidably connected to the outer wall of the insertion tube.

[0014] The above-mentioned solution has the following beneficial effects:

[0015] In this invention, a hydraulic discharge component is provided. This design effectively achieves precise control of the amount of adhesive during mixing. By uniformly pressurizing the mixing cylinder and using the scale lines on the outside of the mixing cylinder, the discharge amount is precisely controlled. This avoids the phenomenon that the flow rate at the discharge port slows down as the amount of raw material in the mixing cylinder decreases, thus preventing the discharge amount from being uncontrollable and greatly improving the accuracy of adhesive mixing.

[0016] In this invention, an anti-clogging component is provided. This design effectively agitates the material at the bottom of the discharging pipe of the mixing cylinder, thereby preventing the raw material from clogging the discharging pipe, improving the discharge efficiency, and further enhancing the accuracy of the adhesive ratio, resulting in good performance.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of a device for precisely proportioning homogeneous particleboard adhesive according to the present invention.

[0020] Figure 2 This is a perspective view of the mixing component in a homogeneous particleboard adhesive precise proportioning device of this utility model;

[0021] Figure 3 This is a cross-sectional view of the mixing cylinder and the housing in the homogeneous particleboard adhesive precise mixing device of this utility model;

[0022] Figure 4 This is a perspective view of the anti-clogging component in a homogeneous particleboard adhesive precise mixing device of the present invention.

[0023] Figure 5 This is a perspective view of the one-way feeding valve assembly in a homogeneous particleboard adhesive precise proportioning device of this utility model.

[0024] Legend:

[0025] 1. Mixing drum; 2. Mixing assembly; 21. Motor; 22. Mixing rod; 23. Mixing blade; 3. Hydraulic discharge assembly; 31. Batching cylinder; 32. Pressure plate; 33. Vertical rod; 34. L-shaped plate; 35. Connecting rod; 36. Exhaust plate; 37. Electric push rod; 38. Housing; 39. Exhaust hole; 4. Anti-clogging assembly; 41. Protective cover; 42. Rack; 43. Gear; 44. Drive rod; 45. First bevel gear; 46. Second bevel gear; 47. Long rod; 48. Ring; 49. Discharge blade; 5. One-way feeding valve assembly; 51. Slot; 52. Insert tube; 53. Limiting ring; 54. Discharge hole; 55. Baffle; 56. Sealing ring; 57. Spring rod. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-5 This utility model provides a device for precise proportioning of homogeneous particleboard adhesive, which includes: a mixing drum 1, a mixing component 2 inside the mixing drum 1, a hydraulic discharge component 3 on the top of the mixing drum 1, and an anti-clogging component 4 and a one-way feeding valve component 5 on the hydraulic discharge component 3.

[0028] The hydraulic discharge assembly 3 includes a dispensing cylinder 31. A pressure plate 32 is slidably mounted on the inner wall of the dispensing cylinder 31. A vertical rod 33 is fixedly mounted on the top of the pressure plate 32. An L-shaped plate 34 is fixedly mounted on the top of the vertical rod 33. A connecting rod 35 is fixedly mounted on the lower surface of one end of the L-shaped plate 34. An exhaust plate 36 is fixedly mounted on the bottom end of the connecting rod 35. A housing 38 is fixedly mounted on the top of the dispensing cylinder 31. The exhaust plate 36 is slidably mounted on the inner wall of the housing 38. A fixed plate 36 is mounted on the inner wall of the bottom of the housing 38. An electric push rod 37 is fixedly installed, and the output shaft of the electric push rod 37 is fixedly installed at the bottom of the exhaust plate 36. An exhaust hole 39 is opened on the outer wall of the housing 38. A connecting rod 35 passes through the through hole opened at the top of the housing 38. A vertical rod 33 passes through the through hole opened at the top of the mixing cylinder 31. An installation groove is opened at the top of the mixing cylinder 1. The mixing cylinder 31 is fixedly installed on the inner wall of the installation groove. An electric valve is installed at the discharge port at the bottom of the mixing cylinder 31. A scale line is set on the outer wall of the mixing cylinder 31.

[0029] In the homogeneous particleboard adhesive precise proportioning device of this utility model, the electric push rod 37 is installed at the bottom of the housing 38, and its output shaft is connected to the exhaust plate 36. When the electric push rod 37 starts and extends upward, the exhaust plate 36 slides upward in the housing 38, and drives the pressure plate 32 to move upward in the mixing cylinder 31 through the connecting rod 35, the L-shaped plate 34 and the vertical rod 33, so that the slot 51 coincides with the feed port at the top of the mixing cylinder 31, so that it can be fed. When it is necessary to discharge, the electric push rod 37 retracts, the exhaust plate 36 moves downward, and pushes the pressure plate 32 downward to squeeze the raw material. The stroke of the electric push rod 37 can be precisely adjusted. By controlling the downward pressing distance of the pressure plate 32, the volume of discharged material can be precisely controlled to achieve quantitative proportioning. Exhaust and pressure balance also play an important role in the whole process. The outer wall of the housing 38 is provided with an exhaust hole 39. When the exhaust plate 36 moves in the housing 38, air can be discharged through the exhaust hole 39, and the heat generated by the operation of the electric push rod 37 can be discharged from the exhaust hole 39.

[0030] The stirring assembly 2 includes a motor 21, which is fixedly installed on the top of the stirring drum 1. The output shaft of the motor 21 is fixedly installed with a stirring rod 22, and stirring blades 23 are fixedly installed on the side wall of the stirring rod 22.

[0031] In the homogeneous particleboard adhesive precise proportioning device of this utility model, when the device is running, the motor 21 installed on the top of the mixing drum 1 is powered on and started. The output shaft of the motor 21 converts electrical energy into mechanical energy, which drives the mixing rod 22 fixedly connected to it to rotate at high speed. The mixing blades 23 fixed on the side wall of the mixing rod 22 rotate synchronously with the rod body. Through the centrifugal force and shear force generated by the rotation, the adhesive raw materials in the mixing drum 1 are fully stirred.

[0032] The anti-clogging component 4 includes a protective cover 41 and a drive rod 44. The protective cover 41 is fixedly installed on the inner wall of the dispensing cylinder 31 by a support rod. A second bevel gear 46 is rotatably installed on the inner top of the protective cover 41. A long rod 47 is fixedly installed on the outer wall of the second bevel gear 46. A ring 48 is fixedly installed on the outer wall of the long rod 47. A material unloading blade 49 is fixedly installed on the outer wall of the ring 48. One end of the drive rod 44 passes through a through hole opened in the side wall of the protective cover 41, and the other end of the drive rod 44 passes through a through hole opened in the side wall of the dispensing cylinder 31. A first bevel gear 45 is fixedly installed on one end of the drive rod 44. The first bevel gear 45 and the second bevel gear 46 are meshed and connected. A gear 43 is fixedly installed on the other end of the drive rod 44. A rack 42 is fixedly installed on the lower surface of the other end of the L-shaped plate 34. The rack 42 and the gear 43 are meshed and connected.

[0033] In the homogeneous particleboard adhesive precise mixing device of this utility model, when the hydraulic discharge component 3 is working, the L-shaped plate 34 moves up and down with the extension and retraction of the electric push rod 37. The rack 42 fixed on the lower surface of the other end of the L-shaped plate 34 meshes with the gear 43 at the end of the drive rod 44. When the L-shaped plate 34 moves down, that is, during the process of the pressure plate 32 squeezing the raw material for discharge, the rack 42 drives the gear 43 to rotate. The rotation of the gear 43 is transmitted to the inside of the protective cover 41 through the drive rod 44. The first bevel gear 45 fixed at one end of the drive rod 44 rotatably mounts the second bevel gear 45 on the top inside the protective cover 41. The engagement of the 6-pinion gear drives the second bevel gear 46 to rotate. When the second bevel gear 46 rotates, the long rod 47 fixed on its outer wall will rotate accordingly. The ring 48 on the long rod 47 and the material unloading blade 49 also rotate around the axis. The material unloading blade 49 rotates near the discharge port of the mixing cylinder 31. Through mechanical disturbance, it unblocks the viscous adhesive that is about to clog the discharge port, ensuring that the material can be smoothly discharged from the electric valve at the bottom of the mixing cylinder 31 to the mixing cylinder 1. The entire anti-clogging component 4 does not require an additional power source. It cleverly utilizes the movement of the hydraulic component to achieve self-drive, which is both energy-saving and can avoid adhesive clogging problems in a timely and efficient manner.

[0034] The one-way feeding valve assembly 5 includes a baffle 55. A sealing ring 56, a tube 52, and a spring rod 57 are fixedly installed on the top of the baffle 55. A limit ring 53 is fixedly installed on the inner wall of the tube 52. A discharge hole 54 is opened on the outer wall of the tube 52. A spring groove and a sealing groove are opened at the bottom of the pressure plate 32. The top of the spring rod 57 is fixedly installed on the inner wall of the spring groove. A slot 51 is opened on the outer wall of the pressure plate 32. The inner wall of the slot 51 is slidably connected to the outer wall of the tube 52.

[0035] In the homogeneous particleboard adhesive precise proportioning device described in this utility model, during the raw material addition stage, the one-way feeding valve assembly 5 achieves controllable feeding through a unique mechanical structure. When it is necessary to add material to the mixing cylinder 31, the operator passes the feeding pipe through the slot 51 and precisely inserts it into the insertion cylinder 52, so that the pipe opening rests on the limiting ring 53 and maintains a certain distance from the upper surface of the baffle 55. At this time, pressure is applied to the baffle 55 inside the insertion cylinder 52 through the feeding pipe, pushing the baffle 55 to overcome the elastic force of the spring rod 57 and causing it to detach from the bottom of the pressure plate 32. As the baffle 55 moves down, the sealing ring 56 moves out of the sealing groove at the bottom of the pressure plate 32, and the discharge hole 54 on the previously blocked insertion tube 52 is exposed. Under the pressure of the feeding tube, the external raw material flows smoothly into the mixing tube 31 through the discharge hole 54, completing the feeding process. When the pressure is stopped, the elastic force of the spring rod 57 causes the baffle 55 to reset, the sealing ring 56 is re-embedded in the sealing groove, and the discharge hole 54 is closed to prevent material backflow, ensuring the accuracy and stability of each feeding, and providing a reliable basis for the subsequent quantitative mixing of adhesives.

[0036] Working principle: When the electric push rod 37 is activated, its output shaft drives the exhaust plate 36 to move downwards at a constant speed. Simultaneously, the exhaust plate 36 moves downwards, driving the L-shaped plate 34 downwards via the connecting rod 35. The L-shaped plate 34 then moves the vertical rod 33 downwards, which in turn moves the pressure plate 32 downwards. At the same time, the electric valve at the bottom outlet of the batching cylinder 31 is opened, allowing the raw materials in the batching cylinder 31 to be discharged from the outlet into the mixing cylinder 1. Then, the motor 21 is activated, and its output shaft drives the mixing rod 22 to rotate, causing the mixing blade 23 to rotate, thus thoroughly mixing the raw materials. As the L-shaped plate 34 moves downwards, it drives the rack 42 to move. The rack 42 meshes with the gear 43, causing the gear 43 to rotate. The gear 43, through the drive rod 44, drives the first bevel gear 45 to rotate. The first bevel gear 45 meshes with the second bevel gear 46. The first bevel gear 45 drives the second bevel gear 46 to rotate, which in turn drives the long rod 47 to rotate. As the long rod 47 rotates, it drives several material feeding blades 49 to rotate through the ring 48, which stirs the raw materials in the discharge pipe at the bottom of the mixing cylinder 31, promotes its flow, and avoids blockage. When it is necessary to add material to the mixing cylinder 31, simply pass the feeding pipe through the slot 51 and insert it into the insertion tube 52, with the pipe opening resting on the limiting ring 53, so that the pipe opening is a certain distance from the upper surface of the baffle 55. By applying pressure through the pipe, the pipe applies pressure to the baffle 55 through the insertion tube 52, causing the baffle 55 to separate from the bottom of the pressure plate 32. The sealing ring 56 on the baffle 55 moves out of the sealing groove at the bottom of the pressure plate 32, exposing the discharge hole 54 on the insertion tube 52, so that the mixing cylinder 31 can be fed.

[0037] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A precision proportioning device for a homogeneous particle board adhesive, comprising: A mixing drum (1) is characterized in that a mixing assembly (2) is provided inside the mixing drum (1), a hydraulic discharge assembly (3) is provided on the top of the mixing drum (1), and an anti-clogging assembly (4) and a one-way feeding valve assembly (5) are provided on the hydraulic discharge assembly (3). The hydraulic discharge assembly (3) includes a dispensing cylinder (31), a pressure plate (32) is slidably installed on the inner wall of the dispensing cylinder (31), a vertical rod (33) is fixedly installed on the top of the pressure plate (32), an L-shaped plate (34) is fixedly installed on the top of the vertical rod (33), a connecting rod (35) is fixedly installed on the lower surface of one end of the L-shaped plate (34), an exhaust plate (36) is fixedly installed on the bottom end of the connecting rod (35), a housing (38) is fixedly installed on the top of the dispensing cylinder (31), the exhaust plate (36) is slidably installed on the inner wall of the housing (38), and the bottom of the housing (38) An electric push rod (37) is fixedly installed on the inner wall of the container. The output shaft of the electric push rod (37) is fixedly installed at the bottom of the exhaust plate (36). An exhaust hole (39) is opened on the outer wall of the casing (38). The connecting rod (35) passes through the through hole opened at the top of the casing (38). The vertical rod (33) passes through the through hole opened at the top of the mixing cylinder (31). An installation groove is opened at the top of the mixing cylinder (1). The mixing cylinder (31) is fixedly installed on the inner wall of the installation groove. An electric valve is provided at the discharge port at the bottom of the mixing cylinder (31). A scale line is provided on the outer wall of the mixing cylinder (31).

2. A precise proportioning device for a homogeneous particle board adhesive according to claim 1, characterized in that The stirring assembly (2) includes a motor (21), which is fixedly installed on the top of the stirring drum (1). The output shaft of the motor (21) is fixedly installed with a stirring rod (22), and stirring blades (23) are fixedly installed on the side wall of the stirring rod (22).

3. A precise proportioning device for a homogeneous particle board adhesive according to claim 1, characterized in that, The anti-clogging component (4) includes a protective cover (41) and a drive rod (44). The protective cover (41) is fixedly installed on the inner wall of the dispensing cylinder (31) by a support rod. A second bevel gear (46) is rotatably installed on the inner top of the protective cover (41), and a long rod (47) is fixedly installed on the outer wall of the second bevel gear (46).

4. A precise proportioning device for a homogeneous particle board adhesive according to claim 3, characterized in that A ring (48) is fixedly installed on the outer wall of the long rod (47), and a feeding blade (49) is fixedly installed on the outer wall of the ring (48). One end of the drive rod (44) passes through a through hole opened on the side wall of the protective cover (41), and the other end of the drive rod (44) passes through a through hole opened on the side wall of the feeding cylinder (31). A first bevel gear (45) is fixedly installed on one end of the drive rod (44).

5. The homogeneous particleboard adhesive precise proportioning device according to claim 4, characterized in that, The first bevel gear (45) and the second bevel gear (46) are meshed together. A gear (43) is fixedly installed at the other end of the drive rod (44). A rack (42) is fixedly installed on the lower surface of the other end of the L-shaped plate (34). The rack (42) and the gear (43) are meshed together.

6. The device for precise proportioning of homogeneous particleboard adhesive according to claim 1, characterized in that, The one-way feeding valve assembly (5) includes a baffle (55), and a sealing ring (56), a tube sleeve (52) and a spring rod (57) are fixedly installed on the top of the baffle (55).

7. The homogeneous particleboard adhesive precise proportioning device according to claim 6, characterized in that, A limiting ring (53) is fixedly installed on the inner wall of the insertion tube (52), and a discharge hole (54) is opened on the outer wall of the insertion tube (52). A spring groove and a sealing groove are opened at the bottom of the pressure plate (32), and the top end of the spring rod (57) is fixedly installed on the inner wall of the spring groove.

8. The device for precise proportioning of homogeneous particleboard adhesive according to claim 1, characterized in that, The outer wall of the pressure plate (32) is provided with a slot (51), and the inner wall of the slot (51) is slidably connected to the outer wall of the insertion tube (52).

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