Crushing shell for aluminum-containing PVC (polyvinyl chloride) plastic package

Abstract

The utility model discloses a crushing shell for aluminum-containing PVC (polyvinyl chloride) plastic package, which comprises a shell, an inner cavity of the shell comprises a crushing cavity, a static cutter holder is fixedly mounted on the inner wall of the crushing cavity, and a static crushing cutter is detachably and fixedly mounted on the static cutter holder; a crushing groove is formed in the outer side surface of the static crushing cutter and extends up and down, and the groove wall of the crushing groove comprises a first groove wall extending towards the interior of the crushing cavity in the rotating direction of the crushing roller and a second groove wall extending towards the interior of the crushing cavity in the direction opposite to the rotating direction of the crushing roller; a first included angle between the second groove wall and the inner wall of the crushing cavity is smaller than a second included angle between the first groove wall and the inner wall of the crushing cavity, and the crushing roller rotates from the second groove wall to the first groove wall; in this way, under the action of the smashing rollers, the materials can enter the smashing groove more easily, and therefore the smashing efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a smashing shell, especially a smashing shell of smashing device of aluminium-containing PVC plastic package. BACKGROUND

[0002] In the plastic recycling industry, the smashing treatment of aluminium-containing PVC (polyvinyl chloride) plastic packaging materials is a challenging task. Such materials are usually composed of a PVC matrix combined with an aluminum foil layer, widely used in food packaging, medicine packaging and other fields, with excellent barrier properties and mechanical strength. However, due to its composite material characteristics, there is a high production safety risk in the smashing process because of the flammable and explosive characteristics of aluminum powder. Although there are some products for smashing aluminium-containing PVC plastic packaging materials, there are still improvements to be made in key components such as the shell. For example, in the shell structure of the smashing device, the design of the static knife is often not reasonable, and it is not easy to disassemble, which increases the difficulty of subsequent maintenance and affects the overall use efficiency and life of the device. Moreover, the smashing efficiency of the existing static knife needs to be further improved. SUMMARY

[0003] To make up for the above shortcomings, the utility model provides a smashing shell of aluminium-containing PVC plastic package which can effectively improve the smashing efficiency and make it easier to maintain and repair the static knife.

[0004] The technical scheme of the utility model is: a smashing shell of aluminium-containing PVC plastic package, comprising a shell, the inner cavity of the shell comprises a smashing chamber, a static knife seat is fixedly installed on the inner wall of the smashing chamber, and a static smashing knife is detachably and fixedly installed on the static knife seat; a smashing groove is provided on the outer surface of the static smashing knife, the smashing groove extends upward and downward, the groove wall of the smashing groove comprises a first groove wall extending into the interior of the smashing chamber along the rotation direction of the smashing roller and a second groove wall extending into the interior of the smashing chamber against the rotation direction of the smashing roller, the first included angle between the second groove wall and the inner wall of the smashing chamber is smaller than the second included angle between the first groove wall and the inner wall of the smashing chamber, and the rotation direction of the smashing roller is from the second groove wall to the first groove wall.

[0005] As a preferred technical scheme, the inner wall of the shell is provided with a vertical groove, the upper end of the vertical groove extends to the upper end face of the shell, the cross section of the static knife seat is trapezoidal, the upper base edge of the trapezoid is attached to the inner wall of the shell, the static smashing knife is provided with a clamping groove matched with the static knife seat, and the upper end of the shell is fixedly installed with a pressing block pressing down on the upper end of the static knife.

[0006] Preferably, the lower part of the shell is provided with a feeding cavity, a partition plate is arranged between the feeding cavity and the crushing cavity, and the partition plate is provided with a feeding hole.

[0007] Preferably, an annular shell is arranged between the partition plate and the bottom of the shell, the annular shell, the partition plate and the bottom of the shell form the feeding cavity, and the shell is provided with a feeding port communicating with the feeding cavity.

[0008] Preferably, the bottom of the shell corresponding to the feeding port is provided with an inclined surface inclined upward along the feeding direction.

[0009] Preferably, the same static crushing knife is provided with three crushing grooves, which are a first crushing groove, a second crushing groove and a third crushing groove along the rotating direction of the crushing roller, the depth of the first crushing groove is greater than that of the second crushing groove, and the depth of the second crushing groove is greater than that of the third crushing groove.

[0010] By adopting the above technical scheme, the crushing shell for aluminum-containing PVC plastic packaging includes a shell, an inner cavity of the shell includes a crushing cavity, an inner wall of the crushing cavity is fixedly installed with a static knife seat, and a static crushing knife is detachably and fixedly installed on the static knife seat; an outer surface of the static crushing knife is provided with a crushing groove, the crushing groove extends upward and downward, a groove wall of the crushing groove includes a first groove wall extending to the inside of the crushing cavity along the rotating direction of a crushing roller and a second groove wall extending to the inside of the crushing cavity against the rotating direction of the crushing roller, a first included angle between the second groove wall and the inner wall of the crushing cavity is smaller than a second included angle between the first groove wall and the inner wall of the crushing cavity, and the rotating direction of the crushing roller is from the second groove wall to the first groove wall; thus, under the action of the crushing roller, the material is more easily entered into the crushing groove, and the crushing efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0012] Figure 1 is a structural schematic view of a crushing host in the embodiments of the present application;

[0013] Figure 2 is Figure 1 is an enlarged view of part I in the crushing host;

[0014] Figure 3 is Figure 1 a sectional view;

[0015] Figure 4 is Figure 3 a partial enlarged view at II in

[0016] Figure 5 is a use state reference drawing of an embodiment of the utility model;

[0017] Figure 6 is a structure schematic view of a static crushing knife in an embodiment of the utility model. DETAILED DESCRIPTION

[0018] As Figures 1 to 5 shown, a crushing shell for aluminum-containing PVC plastic packaging includes a shell 1, an inner cavity of the shell 1 includes a crushing cavity 2, an inner wall of the crushing cavity 2 is fixedly installed with a static knife holder 3, and a static crushing knife 23 is detachably and fixedly installed on the static knife holder 3; an outer side surface of the static crushing knife 23 is provided with a crushing groove, the crushing groove extends upward and downward, a groove wall of the crushing groove includes a first groove wall 7 extending to the inside of the crushing cavity 2 along a rotating direction of a crushing roller 6 and a second groove wall 8 extending to the inside of the crushing cavity 2 against the rotating direction of the crushing roller 6, a first included angle 9 between the second groove wall 8 and the inner wall of the crushing cavity 2 is smaller than a second included angle 10 between the first groove wall 7 and the inner wall of the crushing cavity, and the rotating direction of the crushing roller 6 is from the second groove wall 8 to the first groove wall 7. In this way, the material is more easily entered into the crushing groove under the action of the crushing roller, so that the crushing efficiency is effectively improved.

[0019] As Figure 1 and Figure 2 shown, an inner wall of the shell 1 is provided with a vertical groove 11, an upper end of the vertical groove 11 extends to an upper end face of the shell 1, a cross section of the static knife holder 4 is trapezoidal, an upper base edge 12 of the trapezoid is attached to the inner wall of the shell 1, the static crushing knife 23 is provided with a clamping groove matched with the static knife holder 4, and a lower pressing block 13 is fixedly installed on the upper end of the static knife and presses downward. The lower pressing block presses the static knife downward, the static knife holder cooperates with the clamping groove on the static crushing knife 23, and the cross section of the static knife holder 4 is trapezoidal, so that the installation and positioning of the static crushing knife 23 are more reliable.

[0020] As Figure 5 shown, a lower part of the shell 1 is provided with a feeding cavity 14, a partition plate 15 is arranged between the feeding cavity 14 and the crushing cavity 2, and a material passing hole 16 is arranged on the partition plate 15. The material passes through the crushing cavity from bottom to top, and the safety hidden danger caused by the accumulation of the material in the crushing cavity is avoided.

[0021] As Figure 5As shown, the partition plate 15 and the bottom of the shell 1 are provided with an annular shell 17, the annular shell 17, the partition plate 15 and the bottom of the shell 1 form the feeding cavity 14, and the shell 1 is provided with a feeding port 18 communicating with the feeding cavity 14.

[0022] As shown in the drawings, Figure 5 As shown, the bottom of the shell corresponding to the feeding port 18 is provided with an inclined surface 19 inclined upward along the feeding direction. The arrangement of the inclined surface makes the material entering from the feeding port move upward along the inclined surface, so as to further accelerate the movement speed of the material and avoid the accumulation of the material in the feeding cavity.

[0023] As shown in the drawings, Figure 6 As shown, the same static crushing knife is provided with three crushing grooves, which are a first crushing groove 20, a second crushing groove 21 and a third crushing groove 22 along the rotating direction of the crushing roller. The depth of the first crushing groove 20 is greater than that of the second crushing groove 21, and the depth of the second crushing groove 21 is greater than that of the third crushing groove 22. The material stays in the first crushing groove 20 for a long time, and is fully crushed. At the same time, the large depth of the first crushing groove 20 effectively buffers the material, avoiding too much material directly entering the second crushing groove 21 and the third crushing groove 22. Similarly, the second crushing groove 21 can also buffer the amount of material entering the third crushing groove 22. Due to the buffering of the first crushing groove 20 and the second crushing groove 21 and the shallow depth of the third crushing groove 22, the material can be fully crushed through the third crushing groove 22. The material passing through adjacent static crushing knives will successively pass through the first crushing groove, the second crushing groove and the third crushing groove of adjacent static crushing knives, so as to effectively improve the crushing efficiency.

[0024] The above shows and describes the basic principle, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A crushing shell for aluminum-containing PVC plastic packaging, characterized in that, The device includes a housing, the inner cavity of which includes a grinding chamber. A stationary blade holder is fixedly installed on the inner wall of the grinding chamber, and a stationary grinding blade is detachably and fixedly installed on the stationary blade holder. A grinding groove is provided on the outer surface of the stationary grinding blade. The grinding groove extends vertically, and the groove wall includes a first groove wall extending into the grinding chamber along the rotation direction of the grinding roller and a second groove wall extending into the grinding chamber against the rotation direction of the grinding roller. A first included angle between the second groove wall and the inner wall of the grinding chamber is smaller than a second included angle between the first groove wall and the inner wall of the grinding chamber. The rotation direction of the grinding roller is from the second groove wall to the first groove wall.

2. The crushing shell of the aluminum-containing PVC plastic packaging as described in claim 1, characterized in that, The inner wall of the housing is provided with a vertical groove, the upper end of which extends to the upper end face of the housing. The cross-section of the stationary blade holder is trapezoidal, and the upper base edge of the trapezoid is attached to the inner wall of the housing. The stationary pulverizing blade is provided with a slot that mates with the stationary blade holder. A pressing block is fixedly installed at the upper end of the housing to press down on the upper end of the stationary blade.

3. The crushing shell of the aluminum-containing PVC plastic packaging as described in claim 2, characterized in that, The lower part of the shell is provided with a feeding chamber, and a partition is provided between the feeding chamber and the crushing chamber. The partition is provided with a material passage hole.

4. The crushing shell of the aluminum-containing PVC plastic packaging as described in claim 3, characterized in that, An annular shell is provided between the partition and the bottom of the housing. The annular shell, the partition, and the bottom of the housing form the feeding chamber. The housing is provided with a feeding port that communicates with the feeding chamber.

5. The crushing shell of the aluminum-containing PVC plastic packaging as described in claim 4, characterized in that, The bottom of the housing corresponding to the feed inlet is provided with an inclined surface that slopes upward along the feed direction.

6. The crushing shell of the aluminum-containing PVC plastic packaging as described in any one of claims 1 to 5, characterized in that, The same static pulverizer is provided with three pulverizing grooves, which are respectively the first pulverizing groove, the second pulverizing groove and the third pulverizing groove along the rotation direction of the pulverizing roller. The depth of the first pulverizing groove is greater than the depth of the second pulverizing groove, and the depth of the second pulverizing groove is greater than the depth of the third pulverizing groove.

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