A filling and packaging apparatus for hot-melt adhesive raw material

Abstract

This invention belongs to the field of particulate matter screening technology, specifically referring to a filling and packaging equipment for hot melt adhesive raw materials. It includes an anti-clogging vibrating screen assembly, a vibrating assembly, a limiting assembly, a wrapping angle increasing assembly, a side feeding assembly, and a frame assembly. The anti-clogging vibrating screen assembly is located within the frame assembly, and the vibrating assembly and the limiting assembly are symmetrically arranged within the anti-clogging vibrating screen assembly. The vibrating assembly and the limiting assembly are driven by the wrapping angle increasing assembly. This invention proposes a frustum-shaped portion that mates with the screening holes, maintaining the continuity of the screening holes by inserting from the bottom. Furthermore, through the reduction ratio design of the vibrating assembly and the limiting assembly, the rotational speed of the limiting cam is significantly lower than that of the vibrating cam, thereby achieving the technical objective that the frustum-shaped portion can insert into the screening hole once for every several vibrations of the vibrating plate.

Description

Technical Field

[0001] This invention belongs to the field of particulate matter screening technology, specifically referring to a filling and packaging equipment for hot melt adhesive raw materials. Background Technology

[0002] Hot melt adhesive raw materials are mostly granular. After the raw materials are produced, they need to be screened and packaged according to particle size for use in different processes and to match different subsequent parameters. Vibrating screens are the most commonly used screens for sieving particles of different sizes. However, the difference between hot melt adhesive raw materials and ordinary granules is that elastic hot melt adhesive raw material particles may get stuck in the screening holes, affecting the sustainability of screening. Summary of the Invention

[0003] In view of the above situation, the present invention provides a filling and packaging device for hot melt adhesive raw materials. In order to solve the problem of clogging of the sieve hole, the present invention proposes a frustum portion that cooperates with the sieve hole, and maintains the continuity of the sieve hole by inserting from the bottom. Furthermore, by designing the reduction ratio of the vibration component and the limiting component, the rotation speed of the limiting cam can be significantly lower than that of the vibration cam, thereby achieving the technical objective that the truncated cone can be inserted into the screening hole once for every few vibrations of the vibrating plate. The intermittent cleaning of the screening hole by the truncated cone can avoid both clogging of the screening hole and the problem of affecting screening efficiency caused by the truncated cone being inserted into the screening hole every time.

[0004] The technical solution adopted by the present invention is as follows: The present invention proposes a filling and packaging equipment for hot melt adhesive raw materials, including an anti-clogging vibrating screen assembly, a vibrating assembly, a limiting assembly, a wrapping angle increasing assembly, a side feeding assembly, and a frame assembly. The anti-clogging vibrating screen assembly is disposed in the frame assembly, the vibrating assembly is located in the frame assembly, the vibrating assembly and the limiting assembly are symmetrically disposed in the anti-clogging vibrating screen assembly, and the vibrating assembly and the limiting assembly are driven by the wrapping angle increasing assembly. The side discharge assembly is symmetrically arranged on both sides of the anti-clogging vibrating screen assembly, and the side discharge assembly is located in the frame assembly; The anti-clogging vibrating screen assembly includes a screening base plate, a vibrating plate, and a connecting spring, wherein the connecting spring is located between the screening base plate and the vibrating plate.

[0005] Preferably, the vibrating plate is provided with an array of screening holes, and the screening base plate is provided with an array of frustum-shaped portions corresponding to the screening holes. When the frustum-shaped portions are inserted into the screening holes, they can push out the particles that are blocked in the screening holes. The screening base plate is provided with a guide plate one, and the vibrating plate is provided with a guide plate two corresponding to the guide plate one.

[0006] During the screening process, the material blocked in the screening holes can be pushed out by inserting the conical part into the screening holes, thereby avoiding the problem of elastic granular material blocking the screening holes.

[0007] As a further preferred embodiment of the present invention, the top surface of the vibrating plate is a convex arc-shaped surface, so the material on the vibrating plate will move towards both sides when vibrating; the top surface of the screening bottom plate is a concave arc-shaped surface, so the material on the screening bottom plate will move towards the center when vibrating.

[0008] The micro-curved arc surface design of the upper surface of the screening bottom plate and the vibrating plate can guide the lateral movement of particles during vibration, enabling the material to move along a preset trajectory.

[0009] Furthermore, the vibration assembly includes a vibration bracket, a vibration shaft, a vibration cam, and a pulley. The vibration bracket is mounted on the screening base plate, the vibration shaft is rotatably mounted in the vibration bracket, and the vibration cam and pulley are fixedly connected to both ends of the vibration shaft.

[0010] The vibration plate is driven to reciprocate up and down by the impact of the rotating cam on the vibrating plate.

[0011] Furthermore, the limiting component includes a limiting bracket, a limiting input shaft, a limiting cam, and a second pulley. The limiting bracket is fixedly connected to the screening base plate, the limiting input shaft is rotatably disposed in the limiting bracket, and the limiting cam and the second pulley are fixedly connected to the limiting input shaft.

[0012] By controlling the rotation direction of the limiting cam, the lowest movement position of the vibrating plate can be controlled, thereby making the lowest movement position of the vibrating plate change periodically, which reduces the frequency of the cone part extending into the screening hole and improves the screening efficiency.

[0013] By designing the diameter and structure of pulley one and pulley two, the rotational speed of the limiting cam can be made significantly lower than that of the vibrating cam, thereby achieving the technical objective that the truncated cone can be inserted into the screening hole once for every few vibrations of the vibrating plate.

[0014] Furthermore, the side feeding assembly includes a side box, a side baffle, and front and rear baffles. The side box is fixed to the side of the anti-clogging vibrating screen assembly, and the side baffle is fixed between the anti-clogging vibrating screen assembly and the side box. The upper part of the side baffle is provided with side holes, and the front and rear baffles are fixed to the screening bottom plate, the vibrating plate, and the side box, respectively.

[0015] Preferably, the side discharge assembly further includes a side discharge pipe and a middle discharge pipe. The side discharge pipe is fixed to the lower part of the side box and communicates with the side box. The middle discharge pipe is fixed to the lower part of the screening bottom plate. The screening bottom plate is also provided with a discharge hole. The screening bottom plate and the middle discharge pipe communicate with each other through the discharge hole.

[0016] Large particles that cannot pass through the screening holes will enter the side chamber through the side holes, and then enter the feed bag through the side feed pipe, where they will be screened together with the small particles that enter the feed bag through the middle feed pipe.

[0017] Furthermore, the wrap angle increasing component includes an idler shaft and a transmission belt. The idler shaft is disposed on the screening base plate, and the transmission belt meshes with pulley one and pulley two respectively for transmission.

[0018] The stability of belt drives can be improved by using an idler shaft.

[0019] Furthermore, the frame assembly includes a housing, a hopper, and a bag. The screening base plate is fixed in the housing. A transparent observation window is provided on the side of the housing. The hopper is located above the housing. The bag is located below the side discharge pipe and the middle discharge pipe.

[0020] The beneficial effects achieved by the present invention using the above structure are as follows: (1) During the screening process of the vibrating plate reciprocating up and down, the material blocked in the screening hole can be pushed out by inserting the cone part into the screening hole, thereby avoiding the problem of elastic granular material blocking the screening hole.

[0021] (2) The micro-curved arc surface design of the upper surface of the screening bottom plate and the vibrating plate can guide the lateral movement of the particles during the vibration process, so that the material can move along the preset trajectory.

[0022] (3) The vibration plate can be driven to reciprocate up and down by the impact of the vibration cam during the rotation process.

[0023] (4) By controlling the rotation direction of the limiting cam, the lowest movement position of the vibrating plate can be controlled, thereby making the lowest movement position of the vibrating plate change periodically, thus reducing the frequency of the cone part extending into the screening hole and improving the screening efficiency.

[0024] (5) By designing the diameter and structure of pulley one and pulley two, the rotation speed of the limiting cam can be significantly less than that of the vibrating cam, thereby achieving the technical objective that the cone part can be inserted into the screening hole once for every few vibrations of the vibrating plate.

[0025] (6) Large particles that cannot pass through the screening holes will enter the side box through the side holes, and then enter the feed bag through the side feed pipe, where they will be screened together with small particles that enter the feed bag through the middle feed pipe. Attached Figure Description

[0026] Figure 1 This is a perspective view of a filling and packaging device for hot melt adhesive raw materials proposed in this invention; Figure 2 This is a front view of a filling and packaging device for hot melt adhesive raw materials proposed in this invention; Figure 3 for Figure 2 A cross-sectional view along the cutting line AA; Figure 4 for Figure 3 A cross-sectional view along the cutting line BB; Figure 5 for Figure 4 A cross-sectional view along the section line CC; Figure 6 This is an exploded structural diagram of a filling and packaging device for hot melt adhesive raw materials proposed in this invention. Figure 7 for Figure 3 A magnified view of a section at point I; Figure 8 for Figure 4 Enlarged view of a section at point II; Figure 9 for Figure 5 Enlarged view of a section at point III; Figure 10 for Figure 6 A magnified view of a section at point IV.

[0027] The components include: 1. Anti-clogging vibrating screen assembly; 2. Vibrating assembly; 3. Limiting assembly; 4. Wrap angle enlarging assembly; 5. Side feeding assembly; 6. Frame assembly; 11. Screening bottom plate; 12. Vibrating plate; 13. Connecting spring; 21. Vibrating bracket; 22. Vibrating shaft; 23. Vibrating cam; 24. Belt pulley one; 31. Limiting bracket; 32. Limiting input shaft; 33. Limiting cam; 34. Belt pulley two; 41. Idler shaft; 42. Transmission belt; 51. Side box; 52. Side baffle; 53. Front and rear baffles; 54. Side feeding pipe; 55. Middle feeding pipe; 61. Machine casing; 62. Feed hopper; 63. Feed bag; 111. Conical part; 112. Guide plate one; 113. Feed hole; 121. Screening hole; 122. Guide plate two; 521. Side hole; 611. Transparent observation window.

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] like Figures 1-10 As shown, the present invention proposes a filling and packaging equipment for hot melt adhesive, including an anti-clogging vibrating screen assembly 1, a vibrating assembly 2, a limiting assembly 3, a wrapping angle increasing assembly 4, a side feeding assembly 5, and a frame assembly 6. The anti-clogging vibrating screen assembly 1 is disposed in the frame assembly 6, the vibrating assembly 2 is located in the frame assembly 6, the vibrating assembly 2 and the limiting assembly 3 are symmetrically disposed in the anti-clogging vibrating screen assembly 1, and the vibrating assembly 2 and the limiting assembly 3 are driven by the wrapping angle increasing assembly 4. The side discharge assembly 5 is symmetrically arranged on both sides of the anti-clogging vibrating screen assembly 1, and the side discharge assembly 5 is located in the frame assembly 6; The anti-clogging vibrating screen assembly 1 includes a screening base plate 11, a vibrating plate 12, and a connecting spring 13, with the connecting spring 13 located between the screening base plate 11 and the vibrating plate 12.

[0032] The vibrating plate 12 is provided with an array of screening holes 121, and the screening base plate 11 is provided with an array of frustum portions 111 corresponding to the screening holes 121. When the frustum portions 111 are inserted into the screening holes 121, they can push out the particles that are blocked in the screening holes 121. The screening base plate 11 is provided with a guide plate 112, and the vibrating plate 12 is provided with a guide plate 122 corresponding to the guide plate 112.

[0033] During the screening process of the vibrating plate 12 reciprocating up and down, the material blocked in the screening hole 121 can be pushed out by inserting the conical part 111 into the screening hole 121, thereby avoiding the problem of elastic granular material blocking the screening hole 121.

[0034] The top surface of the vibrating plate 12 is a convex arc surface, so the material on the vibrating plate 12 will move to both sides when vibrating; the top surface of the screening bottom plate 11 is a concave arc surface, so the material on the screening bottom plate 11 will move towards the center when vibrating.

[0035] The micro-curved arc surface design of the upper surface of the screening bottom plate 11 and the vibrating plate 12 can guide the lateral movement of particles during vibration, enabling the material to move along a preset trajectory.

[0036] The vibration assembly 2 includes a vibration bracket 21, a vibration shaft 22, a vibration cam 23, and a pulley 24. The vibration bracket 21 is mounted on the screening base plate 11, the vibration shaft 22 is rotatably mounted in the vibration bracket 21, and the vibration cam 23 and the pulley 24 are fixedly connected to both ends of the vibration shaft 22.

[0037] The vibration plate 12 is driven to reciprocate up and down by the impact of the vibration cam 23 during its rotation.

[0038] The limiting component 3 includes a limiting bracket 31, a limiting input shaft 32, a limiting cam 33, and a second pulley 34. The limiting bracket 31 is fixedly connected to the screening base plate 11, the limiting input shaft 32 is rotatably disposed in the limiting bracket 31, and the limiting cam 33 and the second pulley 34 are fixedly connected to the limiting input shaft 32.

[0039] By controlling the rotation direction of the limiting cam 33, the lowest movement position of the vibrating plate 12 can be controlled, thereby making the lowest movement position of the vibrating plate 12 change periodically, thus reducing the frequency of the cone portion 111 extending into the screening hole 121 and improving the efficiency of screening.

[0040] By designing the diameter and structure of pulley 24 and pulley 34, the rotational speed of the limiting cam 33 can be made significantly lower than that of the vibrating cam 23, thereby achieving the technical objective that the cone portion 111 can be inserted into the screening hole 121 once for every few vibrations of the vibrating plate 12.

[0041] The side discharge assembly 5 includes a side box 51, a side baffle 52, and front and rear baffles 53. The side box 51 is fixed to the side of the anti-clogging vibrating screen assembly 1. The side baffle 52 is fixed between the anti-clogging vibrating screen assembly 1 and the side box 51. The upper part of the side baffle 52 is provided with side holes 521. The front and rear baffles 53 are fixed to the screening bottom plate 11, the vibrating plate 12, and the side box 51, respectively.

[0042] The side discharge assembly 5 also includes a side discharge pipe 54 and a middle discharge pipe 55. The side discharge pipe 54 is fixed to the bottom of the side box 51 and communicates with the side box 51. The middle discharge pipe 55 is fixed to the bottom of the screening bottom plate 11. The screening bottom plate 11 is also provided with a discharge hole 113. The screening bottom plate 11 and the middle discharge pipe 55 communicate with each other through the discharge hole 113.

[0043] Large particles that cannot pass through the screening hole 121 will enter the side box 51 through the side hole 521, and then enter the feed bag 63 through the side feed pipe 54, where they will be screened together with the small particles that enter the feed bag 63 through the middle feed pipe 55.

[0044] The wrap angle increasing component 4 includes an idler shaft 41 and a transmission belt 42. The idler shaft 41 is located on the screening bottom plate 11, and the transmission belt 42 meshes with pulley 24 and pulley 34 respectively.

[0045] The idler shaft 41 can improve the stability of the transmission belt 42.

[0046] The frame assembly 6 includes a housing 61, a hopper 62, and a bag 63. The screening base plate 11 is fixed in the housing 61. A transparent observation window 611 is provided on the side of the housing 61. The hopper 62 is located above the housing 61, and the bag 63 is located below the side discharge pipe 54 and the middle discharge pipe 55.

[0047] In practical use, the user first needs to pour the granular hot melt adhesive raw material onto the vibrating plate 12 through the hopper 62, and at the same time start the motor to drive the limit input shaft 32 to rotate through the external motor. While the limit input shaft 32 rotates, it will drive the limit cam 33 to rotate on the one hand, and drive the vibration shaft 22 and the vibration cam 23 to rotate on the other hand through the transmission belt 42 and the pulley 24. The time taken for the limit cam 33 to rotate one revolution is significantly longer than the time taken for the vibration cam 23 to rotate one revolution. In other words, the limit cam 33 will only rotate one revolution for every several revolutions of the vibration cam 23.

[0048] During the rotation of the vibration cam 23, it will impact and push the vibration plate 12, causing it to rise against the tension of the connecting spring 13. After the vibration cam 23 leaves the vibration plate 12, the vibration plate 12 will fall back under the tension of the connecting spring 13. Through the continuous rotation of the vibration cam 23, the vibration plate 12 can be driven to vibrate periodically. Since the limiting cam 33 only rotates once for every several rotations of the vibrating cam 23, the reciprocating position of the vibrating plate 12 decreases as the limiting cam 33 rotates. When the notch of the pulley 2 34 faces upward, the vibrating plate 12 can reach the lowest position when it descends. At this time, the truncated cone 111 can be inserted into the screening hole 121 to push out the elastic particles blocked in the screening hole 121. This achieves the technical objective that the truncated cone 111 can be inserted into the screening hole 121 once for every several vibrations of the vibrating plate 12.

[0049] By intermittently cleaning the screening holes 121 with the conical part 111, it is possible to avoid clogging of the screening holes 121 and avoid the problem of affecting screening efficiency caused by the conical part 111 being inserted into the screening holes 121 every time.

[0050] After the material falls onto the vibrating plate 12, it will spread to both sides with the vibration. Particles with a diameter smaller than that of the sieve hole 121 will enter the sieve bottom plate 11 through the vibrating plate 12, and then converge toward the center under the action of the curved surface of the sieve bottom plate 11. They will then enter the middle feed pipe 55 through the feed hole 113 and fall into the feed bag 63 located in the middle. Particles larger than the sieve hole 121 will enter the side box 51 through the side hole 521 after reaching both sides along the vibrating plate 12, and fall into the feed bags 63 on both sides through the side feed pipe 54; thus realizing the screening and filling of raw materials.

[0051] In one embodiment of the present invention: the particle size range of the raw material is about 3~5mm, and the material is screened based on whether it is greater than 4mm or less than 4mm; The machine has a width of 1000mm, a front-to-back depth of 600mm, and a height of 1500mm.

[0052] Main parameters of the screening component: The top surface of the vibrating plate 12 is an arc surface with a radius of curvature of 10m, and the diameter of the screening hole 121 is 4mm (positive tolerance). The upper surface of the screening base plate 11 is a spherical surface with a radius of curvature of 10m, a maximum diameter of 5mm at the truncated cone (the maximum part will not enter the screening hole 121), a height of 80mm, and a taper of 5°. The diameter of the side hole 521 is 10mm.

[0053] Key parameters of transmission components: The diameter of pulley 34 is 60mm and the diameter of pulley 24 is 12mm, that is, the transmission ratio between the two is 5:1. The cone part 111 is inserted into the screening hole 121 once every 5 vibration cycles of the vibrating plate 12. The vibrating plate 12 vibrates 5 times as one cycle, of which the first 4 times are used for screening and feeding, and the 5th time is used for clearing blockages.

[0054] The lifting stroke of the limiting cam 33 is 5mm, and the lifting stroke of the vibrating cam 23 is 10mm. That is, the minimum vibration amplitude of the vibrating plate 12 is 5mm, and the maximum vibration amplitude is 10mm (ignoring inertia). When the vibrating plate 12 reaches the maximum vibration amplitude, the cone part 111 can be inserted into the screening hole 121.

[0055] The vibration shaft 22 rotates at 180 r / min, corresponding to a vibration frequency of 3 Hz, while the limit input shaft 32 rotates at 36 r / min, corresponding to a vibration frequency of 0.6 Hz. This ensures timely cleaning of clogged holes without affecting screening efficiency due to excessive cleaning.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0057] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention. The embodiments are merely feasible parameters for this solution and do not constitute a limitation on the solution. The actual structure is not limited to these. In conclusion, if those skilled in the art are inspired by this description and, without departing from the spirit of the invention, design similar structures and embodiments to this technical solution, all such designs should fall within the protection scope of the present invention.

Claims

1. A filling and packaging apparatus for hot-melt adhesive raw material, comprising a vibrating assembly (2) and a frame assembly (6), the vibrating assembly (2) being located in the frame assembly (6), characterized in that: It also includes an anti-blocking vibrating screen assembly (1), a limiting assembly (3), a wrap angle increasing assembly (4), and a side feeding assembly (5). The anti-blocking vibrating screen assembly (1) is located in the frame assembly (6). The vibrating assembly (2) and the limiting assembly (3) are symmetrically located in the anti-blocking vibrating screen assembly (1). The vibrating assembly (2) and the limiting assembly (3) are driven by the wrap angle increasing assembly (4). The side feeding assembly (5) is symmetrically arranged on both sides of the anti-clogging vibrating screen assembly (1), and the side feeding assembly (5) is located in the frame assembly (6); The anti-clogging vibrating screen assembly (1) includes a screening base plate (11), a vibrating plate (12) and a connecting spring (13), wherein the connecting spring (13) is located between the screening base plate (11) and the vibrating plate (12).

2. The filling and packaging apparatus for hot-melt adhesive raw materials according to claim 1, characterized in that: The vibrating plate (12) is provided with an array of screening holes (121), and the screening base plate (11) is provided with an array of frustum portions (111) corresponding to the screening holes (121). When the frustum portions (111) are inserted into the screening holes (121), they can push out the particles blocked in the screening holes (121). The screening base plate (11) is provided with a guide plate one (112), and the vibrating plate (12) is provided with a guide plate two (122) corresponding to the guide plate one (112).

3. The filling and packaging apparatus for hot-melt adhesive raw material according to claim 2, characterized in that: The top surface of the vibrating plate (12) is a convex arc surface, so the material on the vibrating plate (12) will move to both sides when vibrating; the top surface of the screening bottom plate (11) is a concave arc surface, so the material on the screening bottom plate (11) will move towards the middle when vibrating.

4. The filling and packaging apparatus for hot-melt adhesive raw material according to claim 3, characterized in that: The vibration assembly (2) includes a vibration bracket (21), a vibration shaft (22), a vibration cam (23), and a pulley (24). The vibration bracket (21) is mounted on the screening base plate (11), the vibration shaft (22) is rotatably mounted in the vibration bracket (21), and the vibration cam (23) and the pulley (24) are fixed to both ends of the vibration shaft (22).

5. The filling and packaging apparatus for hot-melt adhesive raw material according to claim 4, characterized in that: The limiting component (3) includes a limiting bracket (31), a limiting input shaft (32), a limiting cam (33), and a second pulley (34). The limiting bracket (31) is fixedly connected to the screening base plate (11). The limiting input shaft (32) is rotatably disposed in the limiting bracket (31). The limiting cam (33) and the second pulley (34) are fixedly connected to the limiting input shaft (32).

6. The filling and packaging apparatus for hot-melt adhesive raw material according to claim 5, characterized in that: The side feeding assembly (5) includes a side box (51), a side baffle (52), and front and rear baffles (53). The side box (51) is fixed to the side of the anti-clogging vibrating screen assembly (1). The side baffle (52) is fixed between the anti-clogging vibrating screen assembly (1) and the side box (51). The upper part of the side baffle (52) is provided with side holes (521). The front and rear baffles (53) are fixed to the screening bottom plate (11), the vibrating plate (12), and the side box (51), respectively.

7. A filling and packaging device for hot melt adhesive raw materials according to claim 6, characterized in that: The side discharge assembly (5) further includes a side discharge pipe (54) and a middle discharge pipe (55). The side discharge pipe (54) is fixed to the bottom of the side box (51) and communicates with the side box (51). The middle discharge pipe (55) is fixed to the bottom of the screening base plate (11). The screening base plate (11) is also provided with a discharge hole (113). The screening base plate (11) and the middle discharge pipe (55) communicate with each other through the discharge hole (113).

8. A filling and packaging device for hot melt adhesive raw materials according to claim 7, characterized in that: The wrap angle increasing component (4) includes an idler shaft (41) and a transmission belt (42). The idler shaft (41) is located on the screening bottom plate (11), and the transmission belt (42) meshes with pulley one (24) and pulley two (34) respectively.

9. A filling and packaging device for hot melt adhesive raw materials according to claim 8, characterized in that: The frame assembly (6) includes a housing (61), a hopper (62) and a bag (63). The screening base plate (11) is fixed in the housing (61). A transparent observation window (611) is provided on the side of the housing (61). The hopper (62) is located above the housing (61), and the bag (63) is located below the side discharge pipe (54) and the middle discharge pipe (55).

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