Extrusion die for plastic plate

Abstract

The utility model relates to the technical field of plastic plate production equipment, in particular to an extrusion die for a plastic plate. The extrusion die comprises an upper die frame and a lower die frame, the upper die frame and the lower die frame are fixedly connected through a plurality of bolts, a lower die plate is installed on the lower die frame through the bolts, an upper die plate is arranged on the upper die frame, and a handle plate is installed on the upper die frame and used for carrying the whole extrusion die. The top end of the first adjusting screw rod penetrates through the handle plate and is in threaded connection with the handle plate, and the distance between the upper die plate and the lower die plate can be adjusted by rotating the first adjusting screw rod under the action of threaded rotation so as to adapt to different plastic plate extrusion thicknesses. According to the extrusion die, the upper die frame and the lower die frame are arranged in a split mode, the lower die plate and the upper die plate can be conveniently installed, the distance between the upper die plate and the lower die plate can be adjusted under the action of the first adjusting screw rod, and therefore the extrusion die can meet the extrusion requirements of different plastic plates, and the use range of the whole extrusion die is widened.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plastic board production equipment technical field especially relates to a kind of extrusion mould for plastic board. BACKGROUND

[0002] Plastic board is the material that monomer raw material is polymerized by synthesis or condensation reaction, is composed of synthetic resin and filler, plasticizer, stabilizer, lubricant, colorant and other additives, and its main component is synthetic resin, and the production process of plastic board has the following steps: raw material preparation, hot melt extrusion, cooling and shaping, cutting and edging, detection and quality control and packaging and warehousing etc., and in hot melt extrusion process, it needs to be assisted by extrusion die.

[0003] The existing plastic board extrusion die is mostly integrally formed, that is, the die plate is processed into the required extrusion die by mechanical processing, and such die can mostly only extrude the same type of plastic board during use, although the precision is very high, but lacks diversity, that is, die making and replacement are needed when processing each different size of plastic board, which increases the production cost of plastic board. SUMMARY

[0004] In view of the problems in the background art, an extrusion die for plastic board is provided.

[0005] The utility model provides an extrusion die for plastic board, which comprises an upper die frame and a lower die frame, the upper die frame and the lower die frame are fixedly connected by a plurality of bolts, a lower die plate is installed on the lower die frame by bolts, an upper die plate is arranged on the upper die frame, a handle plate is installed on the upper die frame for carrying the entire extrusion die, an adjusting screw one is rotatably installed on the upper die plate, the top end of the adjusting screw one penetrates through the handle plate and is threadedly connected with the handle plate, by rotating the adjusting screw one, the distance between the upper die plate and the lower die plate can be adjusted under the action of thread rotation, so as to adapt to different plastic board extrusion thicknesses.

[0006] Preferably, a receiving groove is formed in the bottom of the upper die plate, an adjusting plate is arranged in the groove, an adjusting screw two is rotatably installed on the adjusting plate, the top end of the adjusting screw two penetrates through the upper die plate and is threadedly connected with the upper die plate, a limiting column is installed on the adjusting plate, the top end of the limiting column penetrates through the upper die plate and is slidably connected with the upper die plate, a limiting disc is installed at the top end of the limiting column, the height of the adjusting plate can be adjusted by the adjusting screw two and the limiting column.

[0007] Preferably, a rotating wheel is arranged on each of the adjusting screw one and the adjusting screw two, so as to facilitate the operator to operate and rotate.

[0008] Preferably, a scale is arranged on the limiting column, and the top of the upper die plate is taken as a reference, so as to accurately know the moving size of the adjusting plate.

[0009] Preferably, the upper die plate is arranged in an L shape, and the L-shaped protruding edge is located at the outlet of the extrusion die, so that the stress on the extrusion die can be applied to the upper die plate, reducing the impact on the adjusting plate.

[0010] Preferably, the inner side edge of the L-shaped protruding edge of the upper die plate and the side edge of the adjusting plate are both arranged in a slope, which can reduce the extrusion impact on the die.

[0011] Compared with the prior art, the utility model has the beneficial technical effects that:

[0012] By adopting the split type arrangement of the upper die frame and the lower die frame, the lower die plate and the upper die plate can be conveniently installed, and the distance between the upper die plate and the lower die plate can be adjusted under the action of the adjusting screw one, so that different plastic plate extrusion requirements can be met, and the use range of the entire extrusion die is improved.

[0013] Under the joint action of the adjusting screw two and the adjusting plate, when the surface of the plastic plate appears flaws during the extrusion process, the adjusting plate can be adjusted to the position flat with the bottom of the upper die plate in time, since the extrusion wear of the adjusting plate is low during work, after the adjustment of the adjusting plate is completed, the extrusion quality of the plastic plate can be guaranteed, the plastic plate extrusion work can be normally carried out until the extrusion die is replaced or repaired after the plastic plate extrusion work is stopped, and the processing efficiency of the plastic plate is guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic view of the utility model;

[0015] Fig. 2 It is an exploded structural schematic view of the utility model;

[0016] Fig. 3 It is a structural schematic view of the upper die frame, the upper die plate and the adjusting plate of the utility model.

[0017] Mark: 1, upper die frame; 2, lower die frame; 3, lower die plate; 4, upper die plate; 5, handle plate; 6, adjusting screw one; 7, adjusting plate; 8, adjusting screw two; 9, limiting column. DETAILED DESCRIPTION

[0018] As Figs. 1-3As shown, the utility model provides a kind of extrusion mould for plastic board, it includes: upper die frame 1 and lower die frame 2, upper die frame 1 and lower die frame 2 are fixedly connected using multiple bolts, lower die plate 3 is installed on lower die frame 2 by bolt, upper die plate 4 is provided on upper die frame 1, handle plate 5 is installed on upper die frame 1, for the handling of entire extrusion mould, adjusting screw one 6 is rotatably installed on upper die plate 4, rotating round seat is installed on upper die plate 4 by bolt, the bottom end of adjusting screw one 6 is rotatably connected with rotating round seat, so adjusting screw one 6 can be separated from upper die plate 4 by the mode of disassembling bolt, guarantee the detachability of upper die plate 4, the top end of adjusting screw one 6 penetrates handle plate 5 and is threadedly connected with handle plate 5, by rotating adjusting screw one 6, under the action of screw rotation, the distance between upper die plate 4 and lower die plate 3 can be adjusted, adapt to different plastic board extrusion thickness, threaded hole one is opened in handle plate 5, adjusting screw one 6 penetrates threaded hole one and is threadedly connected with threaded hole one.

[0019] As Figs. 1-3 As shown, the bottom of upper die plate 4 is provided with receiving groove, adjusting plate 7 is arranged in the groove, adjusting screw two 8 is rotatably installed on adjusting plate 7, the top end of adjusting screw two 8 penetrates upper die plate 4 and is threadedly connected with upper die plate 4, threaded hole two is opened in upper die plate 4, adjusting screw two 8 penetrates threaded hole two and is threadedly connected with threaded hole two, limiting column 9 is installed on adjusting plate 7, the top end of limiting column 9 penetrates upper die plate 4 and is slidably connected with upper die plate 4, limiting disc is installed on the top end of limiting column 9, the height of adjusting plate 7 can be adjusted by adjusting screw two 8 and limiting column 9, limiting column 9 is provided with scale, and the top of upper die plate 4 is as reference, for accurately understanding the moving size of adjusting plate 7, adjusting screw one 6 and adjusting screw two 8 are all provided with rotating wheel, to facilitate operator to operate rotation, in the embodiment, the number of adjusting plate 7 is multiple, and the corresponding adjusting screw two 8 and rotating wheel are all corresponding with the number of adjusting plate 7, the extrusion pressure in entire extrusion mould can also be adjusted by adjusting the distance between adjusting plate 7 and lower die plate 3, to provide better guarantee for the extrusion quality of plastic board.

[0020] As Fig. 3 As shown, upper die plate 4 is L-shaped, and L-shaped protruding edge is located at extrusion mould outlet, so that stress acting on extrusion mould can act on upper die plate 4, to reduce the impact on adjusting plate 7, the side edge of upper die plate 4 L-shaped protruding edge close to inside and the side edge of adjusting plate 7 are all provided with inclined surface, by the setting of inclined surface, the extrusion impact on mould can be reduced.

[0021] In use, in the embodiment, appropriate lower die plate 3 and upper die plate 4 are selected and installed on lower die frame 2 and upper die frame 1 respectively, then upper die frame 1 and lower die frame 2 are fixedly connected through a plurality of bolts, forming a complete extrusion die, then the extrusion die is installed in an extrusion device through bolts, and extrusion operation is performed, when performing plastic plate extrusion operation, the distance between upper die plate 4 and lower die plate 3 can be adjusted by rotating adjusting screw rod one 6, so as to cope with different plastic plate extrusion thickness requirements, improve the application range of the whole die, and when it is found that the surface of the extruded plastic plate has defects during use of the die, adjusting screw rod two 8 is rotated in sequence, driving the corresponding adjusting plate 7 to descend and be in the same plane with the lowest part of upper die plate 4, since adjusting plate 7 is not subjected to great impact during use, thereby the wear of adjusting plate 7 can be reduced, in this case, by adjusting adjusting plate 7 to be in the same plane with the bottom of upper die plate 4, the surface flatness during plastic plate extrusion can be ensured, so that the plastic plate extrusion operation can be normally performed, until the extrusion operation stops working and then maintenance is performed.

[0022] The embodiment of the utility model is described in detail above in combination with the drawings, but the utility model is not limited to this, various changes can be made within the knowledge range possessed by the technical personnel in the technical field, without departing from the purpose of the utility model.

Claims

1. An extrusion die for a plastic sheet comprising: The upper die frame (1) and the lower die frame (2) are fixedly connected by a plurality of bolts, characterized in that, The lower die frame (2) is provided with a lower die plate (3) mounted by bolts, the upper die frame (1) is provided with an upper die plate (4), and the upper die frame (1) is provided with a handle plate (5) for carrying the whole extrusion die; The upper die plate (4) is provided with an adjusting screw (6) rotatably mounted on the upper die plate (4), the top end of the adjusting screw (6) penetrates the handle plate (5) and is threadedly connected with the handle plate (5), and by rotating the adjusting screw (6), the distance between the upper die plate (4) and the lower die plate (3) can be adjusted under the action of the threaded rotation, so as to adapt to different plastic plate extrusion thicknesses.

2. An extrusion die for a plastic sheet according to claim 1, wherein The bottom of the upper die plate (4) is provided with a receiving groove, the receiving groove is provided with an adjusting plate (7), the adjusting plate (7) is provided with an adjusting screw (8) rotatably mounted on the adjusting plate (7), the top end of the adjusting screw (8) penetrates the upper die plate (4) and is threadedly connected with the upper die plate (4), the adjusting plate (7) is provided with a limiting column (9), the top end of the limiting column (9) penetrates the upper die plate (4) and is slidably connected with the upper die plate (4), the top end of the limiting column (9) is provided with a limiting disc, and the height of the adjusting plate (7) can be adjusted by the adjusting screw (8) and the limiting column (9).

3. An extrusion die for a plastic sheet according to claim 2, wherein The adjusting screw (6) and the adjusting screw (8) are provided with rotating wheels, which are convenient for operators to operate and rotate.

4. An extrusion die for a plastic sheet according to claim 2, wherein The limiting column (9) is provided with a scale, and the top of the upper die plate (4) is taken as a reference for accurately understanding the moving size of the adjusting plate (7).

5. An extrusion die for plastic sheeting as defined in claim 2, wherein, The upper die plate (4) is provided in an L shape, and the L-shaped protruding edge is located at the outlet of the extrusion die, so that the stress acting on the extrusion die can act on the upper die plate (4), thereby reducing the impact on the adjusting plate (7).

6. An extrusion die for a plastic sheet according to claim 5, wherein The side edge of the L-shaped protruding edge of the upper die plate (4) and the side edge of the adjusting plate (7) are provided in an inclined surface, and the inclined surface can reduce the extrusion impact on the die.

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