CN202199394U - Plastic crusher - Google Patents

Abstract

The utility model discloses a plastic crusher, which comprises a crushing box, a fixed knife and a rotary knife mechanism. The rotary knife mechanism includes a combined knife and a main shaft on which the combined knife is fixed. Composed of a rotary blade and a cross-cutting blade, the rotational projections of the edge of the cross-cutting blade and the cutting edge of the rotary blade on a plane passing through the axis of the main shaft are perpendicular to each other. A plastic crusher of the utility model adopts such a structure. When cutting a large piece of soft plastic, the tip of the rotary blade knife cuts into the plastic at intervals, that is, after the first rotary blade cuts, the second rotary blade cuts into the plastic. The plastic is in the process of being bent at the moment before, due to the action of the cross-cutting blade, the plastic is slide-cut without support at the bending point, and at the same time, the cutting depth of the rotating blade can be appropriately reduced to improve the productivity of crushing large pieces of plastic and reduce the plastic waste. The number of cycles in the chassis improves the crushing capacity of the crusher for bulk materials and reduces costs.

Description

A plastic crusher

technical field

The utility model relates to a plastic crusher.

Background technique

Nowadays, plastics are widely used in various industrial fields, especially in the automotive industry. A large part of thermoplastics can be recycled and reused. Plastic crushers are the most commonly used mechanical equipment in the plastic recycling process. The existing plastic crusher includes a crushing box, a fixed knife and a rotary knife mechanism. The rotary knife mechanism includes a combined knife and a main shaft on which the combined knife is fixed. The combined knife is a plurality of rotating blades arranged at intervals. The crushing ability is poor and the cost is high.

Utility model content

The technical problem to be solved by the utility model is: to provide a plastic crusher, which can improve the crushing ability for bulk materials and reduce the cost.

To solve this technical problem, the technical solution of the utility model is: a plastic crusher, including a crushing box, a fixed knife and a rotary knife mechanism, the rotary knife mechanism includes a combined knife and a main shaft on which the combined knife is fixed, and the The combined knife is composed of a plurality of rotating blades and cross-cutting blades arranged at staggered intervals on the main shaft. The cutting edges of the cross-cutting blades and the rotating projections of the cutting edges of the rotating blades on the plane passing through the axis of the main shaft are perpendicular to each other.

The cross-cutting blade is detachably connected with the main shaft.

A plastic crusher of the utility model adopts such a structure. When cutting a large piece of soft plastic, the tip of the rotary blade knife cuts into the plastic at intervals, that is, after the first rotary blade cuts, the second rotary blade cuts into the plastic. The plastic is in the process of being bent at the moment before, due to the effect of the cross-cutting blade, the plastic is slide-cut without support at the bending point, and at the same time, the cutting depth of the rotating blade can be appropriately reduced to improve the productivity of crushing large pieces of plastic and reduce the plastic The number of cycles in the chassis improves the crushing capacity of the crusher for bulk materials and reduces costs.

Description of drawings

Below in conjunction with accompanying drawing, a kind of plastic breaker of the present utility model is described in further detail;

Fig. 1 is the structural representation of a kind of plastic breaker of the present utility model;

Fig. 2 is the mutual position A-A view of the rotary blade and the cutting blade blade reflecting the rotary knife mechanism;

Figure 3 is a front view of the rotary blade;

Figure 4 is a front view of the cross-cutting blade.

In Fig. 1, Fig. 2, Fig. 3, and Fig. 4, 1. Crushing box; 2. Movable adjustment baffle; 3. Screw; 4. Fixed knife; 5. Sieve plate; 6. Discharge port; 7. Motor ; 8. Pulley; 9. Rotary blade; 10. Cross-cutting blade; 11. Main shaft; 12. Feeding port.

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the plastic crusher includes a crushing box 1, a fixed knife 4, a rotary knife mechanism, a sieve plate 5, a motor 7 and a pulley 8, and the rotary knife mechanism includes a combination knife and a fixed The main shaft 11 of the combined knife is composed of a plurality of rotating blades 9 and cross-cutting blades 10 arranged at staggered intervals on the main shaft 11. The planar shape of the cross-cutting blades 10 is basically the same as that of the rotating blades, and only protrudes slightly at the cutting edge , the cutting edge of the cross-cutting blade 10 and the rotation projection of the cutting edge of the rotating blade 9 on the plane passing through the axis of the main shaft are perpendicular to each other, and the cross-cutting blade 10 and the main shaft 11 are detachably connected. Have bearing hole on the two end faces of casing, the main shaft 11 that is fixed with combination knife is installed in two bearing holes by bearing, and one end of main shaft 11 is designed with belt pulley 8, is connected with motor 7 by belt. There is a fixed knife 4 on the box seat in the box, and a movable adjustment baffle 2 is installed on the top of the fixed knife 4 opposite to the feed port. spacing.

A plastic crusher of the utility model adopts such a structure. When cutting a large piece of soft plastic, the tip of the rotary blade knife cuts into the plastic at intervals, that is, after the first rotary blade cuts, the second rotary blade cuts into the plastic. The plastic is in the process of being bent at the moment before, due to the effect of the cross-cutting blade, the plastic is slide-cut without support at the bending point, and at the same time, the cutting depth of the rotating blade can be appropriately reduced to improve the productivity of crushing large pieces of plastic and reduce the plastic The number of cycles in the chassis improves the crushing capacity of the crusher for bulk materials and reduces costs.

Claims (2)

1. plastic breaker; Comprise crush box, dead knife and rotating knife mechanism; Described rotating knife mechanism comprises combination cutter and the main shaft that is fixed with the combination cutter; It is characterized in that: described combination cutter is made up of staggered spaced apart a plurality of rotating blades and crosscut blade on the main shaft, and the cutting edge of described crosscut blade is vertical each other at the rotating and projection that passes through on the plane of main-shaft axis with the rotating blade cutting edge.

2. a kind of plastic breaker according to claim 1 is characterized in that: described crosscut blade and main shaft removably connect.

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