Plastic adhesive resin pretreatment device and its treatment method

Abstract

This invention relates to the field of plastic pretreatment technology, and in particular to a plastic adhesive resin pretreatment device and method, comprising: a positioning component, including a base, an assembly groove on the top surface of the base, a pressing block at the bottom of the assembly groove, and clamping blocks around the assembly groove; a grinding component, including a pressure plate on the base, a guide groove on the top surface of the pressure plate, a positioning slider inside the guide groove, a frosting plate at the bottom of the positioning slider, and a through hole on the bottom surface of the guide groove for the frosting plate to penetrate; a transmission component, including columns on the top of both ends of the pressure plate, an eccentric wheel at the bottom of the columns, a transmission frame between the eccentric wheel and the frosting plate, a push plate on the upper end of the columns, a threaded groove on the outer surface of the columns, and a guide slider inside the push plate, the guide slider being located inside the threaded groove and slidingly engaged; and a drive component, including a telescopic cylinder on the top of the push plate.

Description

Technical Field

[0001] This invention relates to the field of plastic pretreatment technology, and in particular to a plastic adhesive resin pretreatment device and method. Background Technology

[0002] Plastic products are widely used in industrial production for structural components, housings, and functional parts. In practice, resin adhesives are often used to bond plastic components together or with other materials. Because plastic surfaces are typically smooth, and some plastics have low surface energy, direct bonding can lead to insufficient adhesive penetration, resulting in weak bonds and affecting product reliability. Therefore, pretreatment of the bonding surfaces is usually necessary before bonding to improve surface condition and enhance bonding quality.

[0003] In existing technologies, the pretreatment of plastic bonding surfaces is mostly done by manual grinding or simple mechanical grinding. Manual grinding relies on the operator's experience, and it is difficult to keep the grinding trajectory and force consistent, which can easily lead to unstable pretreatment results. Although some mechanical grinding devices can achieve automatic grinding, they still have shortcomings in the positioning, clamping and grinding trajectory control of plastic blanks. Especially when the plastic blanks are small in size or have a high degree of regularity in shape, uneven grinding or a single surface texture direction can easily occur, thus affecting the consistency of subsequent bonding results. Summary of the Invention

[0004] In view of the problem in the above or existing technology of how to achieve uniform grinding of the bonding surface of the plastic blank during the pretreatment process before plastic bonding, so as to obtain a consistent surface condition and meet the requirements of subsequent resin bonding, the present invention is proposed.

[0005] Therefore, the purpose of this invention is to provide a plastic adhesive resin pretreatment device and a treatment method thereof.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] A plastic adhesive resin pretreatment device, comprising:

[0008] The positioning component includes a base, an assembly groove formed on the top surface of the base, a pressing block disposed at the bottom of the assembly groove, and clamping blocks disposed around the assembly groove; and,

[0009] The grinding assembly includes a pressure plate disposed above the base, a guide groove disposed on the top surface of the pressure plate, a positioning slider disposed inside the guide groove, a grinding plate disposed at the bottom of the positioning slider, and a through hole formed in the bottom surface of the guide groove for the grinding plate to penetrate; and,

[0010] The transmission assembly includes columns disposed at the top of both ends of the pressure plate, an eccentric wheel disposed at the bottom of the columns, a transmission frame disposed between the eccentric wheel and the frosted plate, a push plate disposed at the upper end of the columns, a threaded groove formed on the outer surface of the columns, and a guide slider disposed inside the push plate, the guide slider being located inside the threaded groove and slidingly engaged; and...

[0011] The drive assembly includes a telescopic cylinder disposed above the push plate; wherein,

[0012] The lifting and lowering of the push plate is driven by the rotation of the column through the threaded slide groove. The rotation of the column is driven by the transmission frame to drive the grinding plate to reciprocate linearly. The linear motion of the grinding plate is achieved by the guide slide groove to achieve simultaneous lateral reciprocating motion. The lifting and lowering of the pressure plate is driven by the top pressure block to drive the clamping block to rotate.

[0013] In a preferred embodiment of the plastic adhesive resin pretreatment device of the present invention, the inner bottom surface of the assembly groove is provided with a circular groove for accommodating the top pressing block, and the four sides of the base are provided with square grooves communicating with the circular groove. The clamping block is installed inside the square groove, and the lower middle outer wall of the clamping block is rotatably connected to the inner wall of the square groove. A supporting spring is provided between the bottom surface of the top pressing block and the inner bottom of the circular groove, and the top surface of the top pressing block protrudes from the bottom surface of the assembly groove.

[0014] As a preferred embodiment of the plastic adhesive resin pretreatment device of the present invention, the clamping block has an "L" shaped outline, the top pressing block has an "I" shaped outline in side view, the end of the clamping block is located inside the outer edge of the top pressing block, the top surface of the upper end of the clamping block is provided with a deformation groove, and the inner side surface of the upper end of the clamping block is provided with an anti-slip pad.

[0015] In a preferred embodiment of the plastic adhesive resin pretreatment device of the present invention, the inner sidewall of the guide slide is continuously S-shaped, the end of the positioning slider is rotatably provided with a roller that fits against the inner wall of the guide slide, and the top of the pressure plate is provided with a cover plate that covers the guide slide.

[0016] In a preferred embodiment of the plastic adhesive resin pretreatment device of the present invention, the pressure plate is provided with fixing rods on both sides of the column, the two ends of the push plate are sleeved on the outer surface of the fixing rods and are slidably connected up and down, a return spring is provided between the bottom of the two ends of the push plate and the top surface of the pressure plate, the return spring is wound around the outer surface of the fixing rod, a sleeve hole for the column to pass through is opened on the outer wall of the middle part of the push plate, and the guide slider is provided on the inner wall of the sleeve hole.

[0017] In a preferred embodiment of the plastic adhesive resin pretreatment device of the present invention, the top surface of the frosted plate is provided with a movable groove, a connecting seat is slidably arranged inside the movable groove, the transmission frame is connected between the eccentric wheel and the connecting seat, and both ends of the transmission frame are rotatably connected.

[0018] As a preferred embodiment of the plastic adhesive resin pretreatment device of the present invention, a support frame is provided above the base, the telescopic cylinder is installed on the top of the support frame, the tops of the push plates at both ends are connected to a connecting frame, the telescopic end of the telescopic cylinder is connected to the connecting frame, the inner walls on both sides of the support frame are provided with a track frame, and the outer walls at both ends of the pressure plate are provided with a limiting slider located inside the track frame.

[0019] A method for pretreating plastic adhesive resin includes the following steps:

[0020] Step 1: Place the plastic blank to be bonded into the assembly groove 12 of the base 11, with the bonding surface of the plastic blank facing upwards.

[0021] Step 2: Drive the pressure plate 21 downward to make the bottom surface of the pressure plate fit against the bonding surface of the plastic blank, and continue to push the plastic blank downward to make the bottom surface of the plastic blank fit against the bottom surface of the assembly groove 12.

[0022] Step 3: During the process of the plastic blank being pushed downward, the plastic blank pushes the top pressure block 18 downward and compresses the support spring 19. At the same time, the side edge of the top pressure block 18 applies pressure to the clamping block 15, causing the clamping block 15 to rotate and clamp the side wall of the plastic blank.

[0023] Step 4: After the pressure plate 21 can no longer move downward, continue to drive the push plate 32 to move downward, so that the push plate 32 is displaced relative to the pressure plate 21, and the column 31 is driven to rotate through the guide cooperation between the push plate 32 and the column 31.

[0024] Step 5: The rotation of the column 31 drives the eccentric wheel 36 to rotate, and the motion of the eccentric wheel 36 is transmitted to the grinding plate 24 through the transmission frame 34, so that the grinding plate 24 performs linear reciprocating motion.

[0025] Step 6: While the frosting plate 24 is moving in a straight line, the frosting plate 24 and the guide groove 29 work together to make the frosting plate 24 move in the second direction simultaneously, thereby polishing the bonding surface of the plastic blank in both directions and forming an interlaced polishing texture.

[0026] Step 7: After the grinding pretreatment is completed, drive the pressure plate 21 to rise, so that the top pressure block 18 moves upward under the reset action of the support spring 19 and pushes the plastic blank out of the assembly slot 12, thereby completing the pretreatment and taking out the plastic blank.

[0027] In a preferred embodiment of the pretreatment method for plastic adhesive resin of the present invention, the clamping block 15 undergoes elastic deformation through the deformation groove 16 during the clamping process of the plastic blank, so as to limit the clamping force and avoid damage to the plastic blank.

[0028] As a preferred embodiment of the pretreatment method for plastic adhesive resin of the present invention, the inner wall of the guide groove 29 is a continuous curved structure, so that the frosted plate 24 generates periodic lateral displacement during the movement.

[0029] The beneficial effects of the plastic bonding resin pretreatment device and its treatment method of the present invention are as follows: The present invention achieves stable positioning and uniform pretreatment of the bonding surface of the plastic blank by cooperating with the positioning component, the grinding component, the transmission component and the driving component. First, through the linkage of the assembly groove, the top pressure block and the clamping block, the plastic blank can be simultaneously positioned in the vertical direction and clamped in the horizontal direction during the pressing process of the pressure plate, so as to form a stable and reliable fixed state before entering the grinding stage and avoid displacement during the grinding process.

[0030] Secondly, under the action of the drive component and the transmission component, the sanding plate can reciprocate along the preset path while applying pressure to the bonding surface of the plastic blank, and form a bidirectional superimposed motion trajectory under the constraint of the guide structure, so that the sanding action covers the entire bonding area and obtains a relatively uniform surface treatment.

[0031] Furthermore, after pretreatment, the plastic blank is automatically ejected from the assembly slot using elastic reset, making it easy to remove and proceed to the next process, which helps improve the continuity of the overall operation. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1This is a schematic diagram of the overall structure of the plastic adhesive resin pretreatment device and its treatment method.

[0034] Figure 2 A schematic diagram of the base structure of the plastic adhesive resin pretreatment device and its treatment method.

[0035] Figure 3 A schematic diagram of the positioning component structure of the plastic adhesive resin pretreatment device and its treatment method.

[0036] Figure 4 This is a schematic diagram of the pressure plate structure of the plastic adhesive resin pretreatment device and its treatment method.

[0037] Figure 5 A schematic diagram of a frosted plate structure for a plastic adhesive resin pretreatment device and its treatment method.

[0038] Figure 6 A schematic diagram of the grinding component structure of a plastic adhesive resin pretreatment device and its treatment method.

[0039] Figure 7 A schematic diagram of the column structure of the plastic adhesive resin pretreatment device and its treatment method.

[0040] Figure 8 A schematic diagram of the transmission component structure of the plastic adhesive resin pretreatment device and its treatment method.

[0041] Among them, 1. Positioning component; 11. Base; 12. Assembly slot; 13. Square slot; 14. Round slot; 15. Clamping block; 16. Deformation slot; 17. Anti-slip pad; 18. Top pressure block; 19. Support spring;

[0042] 2. Grinding assembly; 21. Pressure plate; 22. Limiting slider; 23. Through hole; 24. Frosting plate; 25. Positioning slider; 26. Roller; 27. Movable groove; 28. Connecting seat; 29. ​​Guide groove;

[0043] 3. Transmission assembly; 31. Column; 32. Push plate; 33. Fixed rod; 34. Transmission frame; 35. Threaded groove; 36. Eccentric wheel; 37. Sleeve hole; 38. Guide slider; 39. Return spring;

[0044] 4. Drive assembly; 41. Support frame; 42. Telescopic cylinder; 43. Connecting frame; 44. Track frame. Detailed Implementation

[0045] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0046] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0047] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0048] Reference Figures 1 to 8 This is the first embodiment of the present invention. This embodiment provides a plastic bonding resin pretreatment device, which includes a positioning component 1, a grinding component 2, a transmission component 3 and a driving component 4.

[0049] Specifically, the positioning component 1 includes a base 11, an assembly groove 12 formed on the top surface of the base 11, a pressing block 18 disposed at the bottom of the assembly groove 12, and clamping blocks 15 disposed around the assembly groove 12. The assembly groove 12 carries the plastic blank and defines its planar position. The pressing block 18 applies support and pushing force to the plastic blank in the vertical direction, and the clamping blocks 15 clamp and fix the plastic blank in the horizontal direction.

[0050] The polishing assembly 2 includes a pressure plate 21 disposed above the base 11, a guide groove 29 disposed on the top surface of the pressure plate 21, a positioning slider 25 disposed inside the guide groove 29, a frosting plate 24 disposed at the bottom of the positioning slider 25, and a through hole 23 opened on the bottom surface of the guide groove 29 for the frosting plate 24 to penetrate. Under the driving action, the pressure plate 21 abuts against the bonding surface of the plastic blank, the frosting plate 24 polishes the bonding surface of the plastic blank, and the guide groove 29 restricts and guides the movement path of the frosting plate 24.

[0051] The transmission assembly 3 includes a column 31 disposed at the top of both ends of the pressure plate 21, an eccentric wheel 36 disposed at the bottom of the column 31, a transmission frame 34 disposed between the eccentric wheel 36 and the frosted plate 24, a push plate 32 disposed at the upper end of the column 31, a threaded groove 35 opened on the outer surface of the column 31, and a guide slider 38 disposed inside the push plate 32. The guide slider 38 is located inside the threaded groove 35 and slides in contact with it.

[0052] The drive assembly 4 includes a telescopic cylinder 42 disposed above the push plate 32.

[0053] A support frame 41 is provided above the base 11. A telescopic cylinder 42 is installed on the top of the support frame 41. The tops of the push plates 32 at both ends are connected to a connecting frame 43. The telescopic end of the telescopic cylinder 42 is connected to the connecting frame 43. Track frames 44 are provided on the inner walls of both sides of the support frame 41. Limiting sliders 22 located inside the track frames 44 are provided on the outer walls of both ends of the pressure plate 21.

[0054] The lifting and lowering of the push plate 32 drives the column 31 to rotate via the threaded slide groove 35. The rotation of the column 31 drives the grinding plate 24 to reciprocate linearly via the transmission frame 34. The linear motion of the grinding plate 24 is simultaneously achieved by the guide slide groove 29 to achieve lateral reciprocating motion. The lifting and lowering of the pressure plate 21 drives the clamping block 15 to rotate via the top pressure block 18.

[0055] In use, the plastic blank is placed in the assembly groove 12 of the base 11 with the bonding surface of the plastic blank facing upwards. The telescopic cylinder 42 is activated and drives the pressure plate 21 to move downwards through the connecting frame 43 and the transmission assembly 3 until the bottom surface of the pressure plate 21 is in contact with the bonding surface of the plastic blank, and pushes the bottom surface of the plastic blank to the bottom surface of the assembly groove 12. Under the push of the plastic blank, the top pressure block 18 compresses the support spring 19 and retracts into the interior of the circular groove 14. The top pressure block 18 presses one end of the top pressure block 18 through the side edge, and the clamping block 15 moves inwards based on the lever principle to clamp the side wall of the plastic blank. The clamping end of the clamping block 15 can be elastically deformed through the deformation groove 16 to avoid the clamping block 15 from over-clamping the plastic blank and causing damage. The anti-slip pad 17 increases the frictional resistance in contact with the plastic blank, and the clamping block 15 clamps the plastic blank more stably.

[0056] When the pressure plate 21 comes into contact with the bonding surface of the plastic blank, it can no longer move downward. At this time, the push plate 32 is driven by the connecting frame 43 to continue moving downward. The push plate 32 compresses the return spring 39 and moves downward along the fixed rod 33. When the push plate 32 moves downward along the column 31 through the sleeve hole 37, the guide slider 38 on the inner wall of the sleeve hole 37 moves along the threaded groove 35 on the outer surface of the column 31. The column 31 is passively rotated and drives the eccentric wheel 36 to rotate. The eccentric wheel 36 pushes and pulls the connecting seat 28 through the transmission frame 34 to realize the linear reciprocating motion of the frosting plate 24.

[0057] The frosting plate 24 moves linearly along the guide groove 29 via the positioning slider 25 and polishes the bonding surface of the plastic blank through the through hole 23. During the linear movement, the frosting plate 24 slides along the inner wall of the guide groove 29 via the roller 26. Since the inner wall of the guide groove 29 is a continuous S-shape, the roller 26 pushes the frosting plate 24 to move laterally back and forth through the undulation of the inner wall of the guide groove 29. The frosting plate 24 moves laterally back and forth synchronously during the linear movement, realizing dual-direction polishing of the bonding surface of the plastic blank. The scratches will intersect, overlap and interweave with each other, forming a complex mesh texture. The final surface does not have a single dominant direction, and the texture is isotropic, achieving a uniform matte or frosted effect, which is crucial for subsequent bonding. It provides a uniform surface area and anchor points, making it easier for liquids to penetrate the entire surface. After curing, it can generate stronger mechanical interlocking force. After the plastic blank is pre-treated, the telescopic cylinder 42 lifts the pressure plate 21, and the top pressure block 18, without external force, presses down and then pops out of the circular groove 14 under the reset action of the support spring 19. The top pressure block 18 pushes the plastic blank out of the assembly groove 12, which is conducive to removing the plastic blank from the base 11 and entering the cycle.

[0058] In summary, by setting the assembly slot 12, the top pressure block 18, and the clamping block 15 on the base 11, and coordinating the work of the drive assembly 4, the transmission assembly 3, and the grinding assembly 2, the plastic blank can be automatically centered, automatically clamped, and stably positioned before entering the grinding stage. On this basis, by using the single vertical driving force provided by the telescopic cylinder 42, and through the transmission conversion of the push plate 32, the column 31, and the eccentric wheel 36, the grinding plate 24 forms a predetermined composite motion trajectory while applying pressure to the bonding surface of the plastic blank, thereby achieving uniform surface grinding treatment. Example 2

[0059] Reference Figures 1 to 8 This is the second embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a positioning component 1, a grinding component 2, and a transmission component 3 for a plastic adhesive resin pretreatment device.

[0060] Specifically, the inner bottom surface of the assembly groove 12 is provided with a circular groove 14 to accommodate the top pressing block 18, and the four sides of the base 11 are provided with square grooves 13 that communicate with the circular groove 14. The clamping block 15 is installed inside the square groove 13, and the lower middle outer wall of the clamping block 15 is rotatably connected to the inner wall of the square groove 13. A support spring 19 is provided between the bottom surface of the top pressing block 18 and the inner bottom of the circular groove 14, and the top surface of the top pressing block 18 protrudes from the bottom surface of the assembly groove 12.

[0061] The clamping block 15 has an "L" shaped outline, and the top pressing block 18 has an "I" shaped outline when viewed from the side. The end of the clamping block 15 is located inside the outer edge of the top pressing block 18. A deformation groove 16 is provided on the top surface of the upper end of the clamping block 15, and an anti-slip pad 17 is provided on the inner side of the upper end of the clamping block 15.

[0062] Furthermore, the inner sidewall of the guide slide 29 is a continuous S-shape, and the end of the positioning slider 25 is rotatably equipped with a roller 26 that fits against the inner wall of the guide slide 29. The top of the pressure plate 21 is detachably equipped with a cover plate that covers the guide slide 29, and the cover plate is used to prevent dust from entering the guide slide 29.

[0063] The pressure plate 21 is provided with fixing rods 33 on both sides of the column 31. The two ends of the push plate 32 are sleeved on the outer surface of the fixing rods 33 and are slidably connected up and down. The bottom of the two ends of the push plate 32 is provided with a return spring 39 between the bottom of the pressure plate 21 and the top surface of the pressure plate 21. The return spring 39 is wrapped around the outer surface of the fixing rod 33. The middle outer wall of the push plate 32 is provided with a sleeve hole 37 for the column 31 to pass through. The guide slider 38 is provided on the inner wall of the sleeve hole 37.

[0064] The top surface of the frosted plate 24 has a horizontally open movable groove 27. A connecting seat 28 is slidably arranged inside the movable groove 27. The transmission frame 34 is connected between the eccentric wheel 36 and the connecting seat 28. Both ends of the transmission frame 34 are rotatably connected.

[0065] The rest of the structure is the same as in Example 1.

[0066] In use, the plastic blank is first placed in the assembly groove 12 of the base 11 with its bonding surface facing upward. Since the bottom of the assembly groove 12 is provided with a circular groove 14 and a top pressure block 18 that can move up and down, the plastic blank can obtain stable vertical support in the initial placement state. After the telescopic cylinder 42 is activated, the pressure plate 21 moves downward under the guidance of the track frame 44 and gradually contacts the bonding surface of the plastic blank. During the downward pressing process, the plastic blank pushes the top pressure block 18 to compress the support spring 19 and enter the circular groove 14. As the top pressure block 18 moves downward, its side edge forms a continuous pressing on the clamping block 15, causing the clamping block 15 to rotate around its rotation connection point and clamp the side wall of the plastic blank. Since the clamping block 15 is provided with a deformation groove 16 and an anti-slip pad 17, it can ensure the clamping force while avoiding squeezing damage to the plastic blank during the clamping process.

[0067] When the pressure plate 21 can no longer move downward, the push plate 32 continues to move downward under the state of the return spring 39 being compressed. Through the cooperation of the guide slider 38 and the threaded groove 35, the column 31 is driven to rotate, and further drives the eccentric wheel 36 and the transmission frame 34, so that the grinding plate 24 begins to pre-process and grind the plastic blank.

[0068] In summary, by further optimizing the structure of positioning component 1, grinding component 2, and transmission component 3, the circular groove 14 and square groove 13 make the movement direction of the top pressure block 18 and clamping block 15 clearer. The continuous S-shaped guide groove 29, combined with the structure of the roller 26, makes the movement of the grinding plate 24 smoother and more reliable during the grinding process. At the same time, the movable groove 27 and connecting seat 28 enable the transmission frame 34 to have a certain displacement compensation capability during the eccentric drive process, which helps to reduce the additional load between the structures. Without changing the clamping method of the plastic blank and the grinding principle, the stability and reliability of the device in the repeated operation process are improved. Example 3

[0069] Reference Figures 1 to 8 This is the third embodiment of the present invention. Unlike the previous embodiment, this embodiment provides a method for pretreating plastic adhesive resin, which includes the following steps:

[0070] First, the plastic blank to be pre-treated is placed in the assembly groove 12 of the base 11, and the placement posture of the plastic blank is adjusted so that the bonding surface of the plastic blank is facing upward. In this step, the plastic blank is in an unpressurized and unclamped state, and the assembly groove 12 is used to initially limit the position of the plastic blank.

[0071] Subsequently, the drive assembly 4 is activated. The drive assembly 4 drives the pressure plate 21 to move downward in the vertical direction through the connecting frame 43 and the transmission assembly 3, so that the bottom surface of the pressure plate 21 gradually approaches and finally adheres to the bonding surface of the plastic blank. The pressure plate 21 continues to apply downward force, so that the plastic blank moves downward as a whole and adheres to the bottom surface of the assembly groove 12, thereby completing the positioning of the plastic blank in the vertical direction.

[0072] As the plastic blank is pushed downward, it exerts a downward force on the top pressure block 18, causing the top pressure block 18 to compress the support spring 19 and retract downward into the circular groove 14.

[0073] At the same time, the side edge of the top pressure block 18 exerts pressure on one end of the clamping block 15, causing the clamping block 15 to rotate around its rotation connection point. The other end of the clamping block 15 moves toward the inside of the assembly groove 12 and clamps the side wall of the plastic blank, thereby completing the clamping and fixing of the plastic blank in the horizontal direction.

[0074] When the pressure plate 21 comes into contact with the bonding surface of the plastic blank and can no longer move downward, the drive assembly 4 continues to output driving force, causing the push plate 32 to continue to move downward relative to the pressure plate 21.

[0075] During this process, the push plate 32 compresses the return spring 39 and maintains a stable downward movement under the guidance of the fixed rod 33. When the push plate 32 moves downward along the column 31 through the sleeve hole 37 in its middle, the guide slider 38 provided on the inner wall of the sleeve hole 37 slides along the threaded groove 35 on the outer surface of the column 31, thereby driving the column 31 to rotate. After the column 31 rotates, it drives the eccentric wheel 36 provided at its bottom end to rotate synchronously.

[0076] During rotation, the eccentric wheel 36 generates a periodic pushing and pulling action on the connecting seat 28 through the transmission frame 34, causing the grinding plate 24 to reciprocate linearly in the longitudinal direction. While the grinding plate 24 is reciprocating linearly, it slides along the guide groove 29 through the positioning slider 25 set at its upper end.

[0077] Since the inner wall of the guide groove 29 is a continuous S-shaped structure, the roller 26 at the end of the positioning slider 25 is guided by the undulating changes when it rolls along the inner wall of the guide groove 29, so that the abrasive plate 24 simultaneously generates a transverse reciprocating motion while performing longitudinal linear reciprocating motion. Therefore, when the abrasive plate 24 polishes the bonding surface of the plastic blank, it moves back and forth in both longitudinal and transverse directions at the same time, realizing bidirectional polishing pretreatment of the bonding surface of the plastic blank.

[0078] After the pre-treatment of the bonding surface of the plastic blank is completed by grinding, the drive component 4 reverses and drives the pressure plate 21 to rise. As the pressure plate 21 rises, the downward force of the plastic blank on the top pressure block 18 is released. Under the reset action of the support spring 19, the top pressure block 18 pops out of the circular groove 14 and pushes the plastic blank out of the assembly groove 12. Finally, the pre-treated plastic blank is taken out from the base 11, thus completing one plastic bonding resin pre-treatment process, and can proceed to the next bonding process or the next cycle.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A plastic adhesive resin pretreatment device, characterized in that, include: The positioning component (1) includes a base (11), an assembly groove (12) formed on the top surface of the base (11), a pressing block (18) disposed at the bottom of the assembly groove (12), and clamping blocks (15) disposed around the assembly groove (12); and, The polishing assembly (2) includes a pressure plate (21) disposed above the base (11), a guide groove (29) disposed on the top surface of the pressure plate (21), a positioning slider (25) disposed inside the guide groove (29), a sanding plate (24) disposed at the bottom of the positioning slider (25), and a through hole (23) opened on the bottom surface of the guide groove (29) for the sanding plate (24) to penetrate; and, The transmission assembly (3) includes columns (31) disposed at the top of both ends of the pressure plate (21), an eccentric wheel (36) disposed at the bottom of the column (31), a transmission frame (34) disposed between the eccentric wheel (36) and the frosted plate (24), a push plate (32) disposed at the upper end of the column (31), a threaded groove (35) formed on the outer surface of the column (31), and a guide slider (38) disposed inside the push plate (32), wherein the guide slider (38) is located inside the threaded groove (35) and slides in contact with it; and, The drive assembly (4) includes a telescopic cylinder (42) disposed above the push plate (32); wherein, The push plate (32) can be raised and lowered and drive the column (31) to rotate through the threaded slide (35). The rotation of the column (31) drives the sanding plate (24) to perform linear reciprocating motion through the transmission frame (34). While the sanding plate (24) performs linear reciprocating motion, it achieves lateral reciprocating motion through the guide slide (29). The pressure plate (21) can be raised and lowered and drive the clamping block (15) to rotate through the top pressure block (18).

2. The plastic adhesive resin pretreatment device as described in claim 1, characterized in that: The inner bottom surface of the assembly groove (12) is provided with a circular groove (14) for accommodating the top pressing block (18). The four sides of the base (11) are provided with square grooves (13) that communicate with the circular groove (14). The clamping block (15) is installed inside the square groove (13). The lower middle outer wall of the clamping block (15) is rotatably connected to the inner wall of the square groove (13). A support spring (19) is provided between the bottom surface of the top pressing block (18) and the inner bottom of the circular groove (14). The top surface of the top pressing block (18) protrudes from the bottom surface of the assembly groove (12).

3. The plastic adhesive resin pretreatment device as described in claim 2, characterized in that: The clamping block (15) has an "L" shaped outline, and the top pressing block (18) has an "I" shaped outline in its side view. The end of the clamping block (15) is located inside the outer edge of the top pressing block (18). A deformation groove (16) is provided on the top surface of the upper end of the clamping block (15), and an anti-slip pad (17) is provided on the inner side of the upper end of the clamping block (15).

4. The plastic adhesive resin pretreatment device as described in claim 3, characterized in that: The inner sidewall of the guide groove (29) is a continuous S-shape. The end of the positioning slider (25) is rotatably provided with a roller (26) that fits against the inner wall of the guide groove (29). The top of the pressure plate (21) is provided with a cover plate that covers the guide groove (29).

5. The plastic adhesive resin pretreatment device as described in claim 4, characterized in that: The pressure plate (21) is provided with fixing rods (33) on both sides of the column (31). The two ends of the push plate (32) are sleeved on the outer surface of the fixing rods (33) and are slidably connected up and down. The bottom of the two ends of the push plate (32) and the top surface of the pressure plate (21) are provided with a return spring (39). The return spring (39) is wrapped around the outer surface of the fixing rod (33). The middle outer wall of the push plate (32) is provided with a sleeve hole (37) for the column (31) to pass through. The guide slider (38) is provided on the inner wall of the sleeve hole (37).

6. The plastic adhesive resin pretreatment device as described in claim 5, characterized in that: The top surface of the frosted plate (24) is provided with a horizontal movable groove (27), and a connecting seat (28) is slidably arranged inside the movable groove (27). The transmission frame (34) is connected between the eccentric wheel (36) and the connecting seat (28), and both ends of the transmission frame (34) are rotatably connected.

7. The plastic adhesive resin pretreatment device as described in claim 6, characterized in that: A support frame (41) is provided above the base (11). The telescopic cylinder (42) is installed on the top of the support frame (41). The tops of the push plates (32) at both ends are connected to a connecting frame (43). The telescopic end of the telescopic cylinder (42) is connected to the connecting frame (43). Track frames (44) are provided on the inner walls of both sides of the support frame (41). Limiting sliders (22) located inside the track frames (44) are provided on the outer walls of both ends of the pressure plate (21).

8. A method for pretreating plastic adhesive resin, using the plastic adhesive resin pretreating apparatus according to claim 7, characterized in that, Includes the following steps: S1. Place the plastic blank to be bonded into the assembly slot (12) of the base (11) with the bonding surface of the plastic blank facing upward. S2. Drive the pressure plate (21) downward to make the bottom surface of the pressure plate fit against the bonding surface of the plastic blank, and continue to push the plastic blank downward to make the bottom surface of the plastic blank fit against the bottom surface of the assembly groove (12). S3. During the process of the plastic blank being pushed downward, the plastic blank pushes the top pressure block (18) downward and compresses the support spring (19). At the same time, the side edge of the top pressure block (18) applies a pressing force to the clamping block (15), causing the clamping block (15) to rotate and clamp the side wall of the plastic blank. S4. After the pressure plate (21) can no longer move downward, the push plate (32) is driven to move downward, so that the push plate (32) is displaced relative to the pressure plate (21), and the column (31) is driven to rotate through the guide cooperation between the push plate (32) and the column (31). S5. The rotation of the column (31) drives the eccentric wheel (36) to rotate, and the motion of the eccentric wheel (36) is transmitted to the grinding plate (24) through the transmission frame (34), so that the grinding plate (24) performs linear reciprocating motion. S6. While the frosting plate (24) is moving in a straight line, the frosting plate (24) and the guide groove (29) work together to make the frosting plate (24) move in a horizontal direction in a synchronous manner, thereby polishing the bonding surface of the plastic blank in both directions and forming an interlaced polishing texture. S7. After the grinding pretreatment is completed, the driving pressure plate (21) is raised, so that the top pressure block (18) moves upward under the reset action of the support spring (19) and pushes the plastic blank out of the assembly slot (12), thereby completing the pretreatment and taking out the plastic blank.

9. The pretreatment method for plastic adhesive resin as described in claim 8, characterized in that: The clamping block (15) undergoes elastic deformation through the deformation groove (16) during the clamping process of the plastic blank, so as to limit the clamping force and avoid damage to the plastic blank.

10. The pretreatment method for plastic adhesive resin as described in claim 9, characterized in that: The inner wall of the guide groove (29) is a continuous curve structure, which causes the frosted plate (24) to generate periodic lateral displacement during the movement.

Images