EE01573U1 - Apple crusher - Google Patents

Abstract

The apple crusher belongs to the field of household electric crushers. The base frame 1 of the apple crusher provides an angle of 45 degrees to the ground for the electric motor 2 and the crushing chamber 3 connected to it together with the feed pipe 4. The crushing of the apples takes place with a compact assembly consisting of a crushing disc 5, a cutting blade 6 and a mixing blade 7; the cutting teeth 6.1 of the cutting blade 6 are being located asymmetrically with respect to the center of the crushing disc 5. The degree of crushing is adjusted by changing the diameter of the outlet 8 by means of the lower end of the feed tube 4. For this purpose, there are several groups of notches 4.2 of different depths at the lower end of the feed pipe 4, the notch 4.2 of selected depth from each notch group being supported on the respective support cam 3.3 in the inner wall of the crushing chamber 3. The deeper are selected notches 4.2, the greater part of the outlet 8 is covered by the lower end of the feed pipe 4, the greater the degree of crushing of the apples and vice versa. The maintenance of the lower end of the feed pipe 4 at a suitable height inside the crushing chamber 3 is ensured by the interaction of the clamping slit 3.1 of the crushing chamber 3 and the clamping rod with the clamping rod locking clip 3.2 around the outer wall of the crushing chamber 3.

Description

 Technical field

The invention belongs to the field of household electric crushers. More specifically, the invention describes an apple crusher.

State of the art

In Estonia, the most common electric apple crusher manufactured in the former Pärnu Machine Factory is the one in which the crushed mass is directed to a vertically rotating cutting disc at a small angle. The main parts of this apple crusher are the base frame, the electric motor, the feed hopper, which is tapered downwards towards the crushing chamber and connected to the crushing chamber by means of a joint, the crushing chamber, which contains a vertically arranged cutting disc, which has a number of cutting edges pressed above the plane of the cutting disc, and an outlet at the bottom of the crushing chamber. The cutting disc allows the apples to be crushed into a mass of thin chips, from which the juice is then squeezed out with a juicer. The degree of crushing can only be adjusted by replacing the cutting disc with a cutting disc whose cutting edges on the cutting disc differ in height, size and position from the cutting edges of the replaceable cutting disc.

All known apple crushers described below are such that the mass to be crushed moves perpendicularly to the cutting disc with the plane of the cutting disc, with crushers with lower productivity containing a cutting disc, but crushers with higher productivity containing a cutting blade and a mixing blade. Apple Press Ltd. electric apple crusher ES-055 (https://applepresses.com/et/elektriline-ounapurostaja-es-055) and ES-018 (https://applepresses.com/et/elektriline-ounapurostaja-es-018) are known. which differ in that the ES-055 has a funnel at the upper end of the feed tube, but the ES-018 does not. Apple Press Ltd. crushers include a base frame, a vertically arranged electric motor, a crushing chamber horizontally attached to the shaft of the electric motor, which includes an outlet with a drain chute, and a horizontally arranged cutting disc. The feed tube is mounted vertically on the crushing chamber, with the imaginary vertical axis of the feed tube passing through the center of the crushing chamber and the cutting disc. The cutting disc has a number of cutting edges pressed above the plane of the cutting disc. The degree of crushing cannot be adjusted without replacing the cutting disc with a cutting disc whose cutting edge height, size and position on the cutting disc differ from the cutting edges of the replacement cutting disc.

The Fruit Shark B1600 fruit crusher, manufactured in the Czech Republic, is well-known.

(https://mahlapress.ee/kodutarbiia/purustaiad/elektrilised-purustaiad/elektrilineounapurustaja-fruit-shark). which includes a base frame on which a support plate is attached, which has a hole in the middle, an electric motor that is attached vertically to the lower side of the base frame support plate so that the end of the electric motor shaft extends through the hole in the base frame support plate, a crushing chamber that is attached horizontally to the upper side of the base frame support plate and includes a crushing disc, a cutting blade, a mixing blade and an outlet with a drain chute; a feed pipe equipped with a funnel mounted vertically on the crushing chamber and a barrier plate inside the feed pipe, whereby the imaginary vertical axis of the feed pipe passes through the center of the crushing chamber, the crushing disc and the crushing blade; a cutting blade with a smooth cutting edge is attached to the crushing disc at a cut made along one radius. The degree of crushing cannot be adjusted.

The closest solution is the apple crusher M50 (https://realrent.ee/shop/rent/abiseadmed-ja-muudseadmed/ounapurustaja-puuviljapurustaja-rent/), which includes a base frame with four support legs, the rear support legs of which are inclined forward and longer than the front support legs, which is why the crusher is inclined 4-6 degrees relative to the ground, which ensures that the crushed mass flows out of the crushing chamber outlet along the drainage chute, with a support plate with a hole in the middle attached to the upper ends of the support legs; an electric motor attached to the lower side of the support plate so that the end of the electric motor shaft extends through the hole in the support plate of the base frame; the crushing chamber, which is attached to the upper side of the support plate of the base frame, includes a crushing disc and one cutting blade with a smooth cutting edge, which is attached to the crushing disc at a cut made along one of the radiuses of the crushing disc; an inverted V-shaped mixing blade attached to the end of the electric motor shaft; A 700 mm long feed pipe with an internal diameter of 240 mm, detachably connected to the crushing chamber, containing spirally arranged baffle plates and an inlet funnel with an internal diameter of 330 mm.

Filling the feed tube of this well-known apple crusher is inconvenient because the inlet is located high above the ground. The spirally arranged baffle plates in the feed tube do not allow the full capacity of the feed tube to be used. The feed tube cannot be filled at once because in a fully loaded feed tube, the apples are prevented from sliding from one baffle plate to the next. As a result, the productivity of this apple crusher is low. Disassembling, cleaning and assembling the main working unit of the apple crusher is time-consuming and inconvenient. The degree of crushing of the apples cannot be adjusted.

The essence of the invention

The goal of the solution is to develop an apple crusher that is easy to manufacture, safe, efficient, easy to handle and maintain, which allows the feeding tube to be conveniently and completely filled and the degree of crushing of apples to be adjusted.

To achieve this goal, an apple crusher has been developed, which includes a base frame with four support legs, the rear support legs of which are inclined forward and longer than the first support legs, an electric motor, a crushing chamber with a crushing disc, a cutting blade and a mixing blade, a feed pipe with an inner diameter of 240 mm detachably connected to the crushing chamber, the imaginary longitudinal axis of which coincides with the imaginary longitudinal axis of the crushing chamber and is perpendicular to the surface of the crushing disc, an outlet in the lower part of the crushing chamber wall and a drain chute connected to the outlet, wherein the base frame provides the electric motor and the crushing chamber connected thereto together. with a feed pipe at an angle of 45 degrees to the ground, which is why the length of the front support legs of the base frame is 390-420 mm and the length of the rear support legs is 560-590 mm, the angle between the front support legs and the rear support legs is 60-70 degrees, with two intermediate beams 380-420 mm long between the rear support legs, to which an electric motor is attached; a feed pipe that is without barrier plates on the inside and long enough to ensure a safe distance from the end of the feed pipe to the crushing disc, which must be at least 850 mm for a feed pipe with a diameter of more than 120 mm without barrier plates (EN ISO 13857). In this solution, the length of the feed tube measured from the shortest point is 850 mm, the feed tube inlet opening is cut at a 45 degree angle, the lower end of the feed tube is placed inside the crushing chamber, and there are three groups of notches on the lower edge of the feed tube, each group having four notches of different depths, one selected notch of each notch group being supported on a corresponding support cam inside the crushing chamber. The crushing chamber is supplemented with three support cams located on one perimeter inside the crushing chamber, on which one selected notch of the feed tube from each of the three notch groups is supported. Wherein, the deeper the notch is selected, the greater part of the outlet opening is covered by the end of the feed tube and the greater the degree of crushing of the apples and vice versa. In addition, the crushing chamber is equipped with tension slots and a tension rod around the outer wall of the crushing chamber and a tension rod locking clip, which together allow the diameter of the upper part of the crushing chamber to be reduced by compressing the tension slots and thereby ensuring that the lower end of the feed pipe remains at a selected height inside the crushing chamber. The crushing disc, the cutting blade and the mixing blade are connected inseparably into one compact assembly, in which the cutting blade is welded into a diagonal rectangular slot made for this purpose in the crushing disc so that the cutting blade

the lower edge and the lower surface of the crushing disc are in the same plane; the cutting blade is provided with cutting teeth that are perpendicular to the plane of the crushing disc and asymmetrically to an imaginary vertical axis passing through the center of the crushing disc, the mixing blade being an inverted U-shaped part of the cutting blade without cutting teeth in the center of the cutting blade.

List of illustrations

The structure of the present invention is described in detail in Figures 1 to 4, which are attached to the exemplary embodiment. The invention is not limited to the presented example, but only to the accompanying claims.

Fig 1. General view of the apple crusher.

Fig 2. A compact assembly comprising a crushing disc with a cutting blade equipped with cutting teeth and a mixing blade in the middle of the cutting blade.

Fig 3. A crushing chamber equipped with tension slots, three support lugs located on one of the inner perimeters of the crushing chamber, and an outlet and drain chute in the lower part of the crushing chamber.

Fig 4. A feed tube with an insertion opening cut at a 45 degree angle and three groups of grooves on the lower edge, each group containing four grooves of different depths.

Example

The invention will now be described more fully with reference to the accompanying drawings, in which a preferred embodiment of the invention is shown. However, the present invention is capable of various variations, and the illustrations should not be construed as the only possible embodiment. Rather, the embodiments are illustrated to provide a complete and comprehensive overview of the invention and its scope of application to those skilled in the art.

Figure 1 shows an apple crusher, which includes a base frame 1 with four support legs, the rear support legs of which are inclined forward and longer than the first support legs, an electric motor 2, a crushing chamber 3, which includes a crushing disc 5 (Fig. 2), a cutting blade 6 and a mixing blade 7, and a feed pipe 4 with an inner diameter of 240 mm, detachably connected to the crushing chamber 3, the imaginary longitudinal axis of which coincides with the imaginary longitudinal axis of the crushing chamber 3 and is perpendicular to the surface of the crushing disc 5, and an outlet 8 in the lower part of the side wall of the crushing chamber 3 and a drain chute 9 connected to the outlet 8 (Fig. 3). The task of the base frame 1 is to ensure that the electric motor 2, the crushing chamber 3 and the feed pipe 4 are at an angle of 45 degrees to the ground. This is so that when the apple crusher is operating

Without barrier plates, pieces of apple would not fly out of the end of the feed tube 4 and the feed tube 4 would be able to be filled completely and conveniently. Accordingly, the length of the first support legs 1.1 of the base frame 1 is 413 mm and the length of the rear support legs 1.2 is 575 mm, the angle between the first support legs 1.1 and the rear support legs 1.2 is 65 degrees, whereas between the rear support legs 1.2 there are two intermediate beams 1.3 with a length of 380-420 mm, to which the electric motor 2 is attached. A crushing chamber 3 is connected to the shaft of the electric motor 2, which includes a crushing disk 5 with a cutting blade 6 and a mixing blade 7 connected in one compact assembly (Fig. 2), wherein the cutting blade 6 is connected to the crushing disk 5 in such a way that the cutting blade 6 is welded into a diagonal rectangular slot 5.1 in the crushing disk 5 so that the lower edge of the cutting blade 6 and the lower surface of the crushing disk 5 are in the same plane, wherein the cutting blade The part with cutting teeth 6.1 consists of two parts of equal length, one part of which is located on one side of the opening in the middle of the crushing disc 5 and the other part on the other side of the opening in the middle of the crushing disc 5, and the cutting teeth 6.1 of the cutting blade 6 are perpendicular to the plane of the crushing disc 5 and are located asymmetrically with respect to the imaginary vertical axis passing through the center of the crushing disc 5, and the mixing blade 7 is an inverted U-shaped part of the cutting blade 6 without cutting teeth in the middle of the cutting blade 6. On the perimeter of the inner wall of the crushing chamber 3 there are three support lugs 3.3 (Fig. 3), on which the feed tube 4 (Fig. 4) is supported by a notch 4.2 of a selected depth from each group of notches. The wall of the crushing chamber 3 has tension slots 3.1 and the crushing chamber 3 includes a tension rod with a tension rod locking clip 3.2 (Fig. 1). If there is no baffle plate in a vertically positioned feed pipe with a diameter of more than 120 mm, then to meet safety requirements, the length of the feed pipe from the inlet opening to the crushing disc must be at least 850 mm (EN ISO 13857). In order for the inlet opening 4.1 of the feed tube 4 (Fig. 4) to perform the same function as a funnel and prevent apple pieces from flying out of the end of the feed tube 4, the inlet opening 4.1 of the feed tube is cut at a 45 degree angle and the length of the feed tube 4 measured from the shortest point is 850 mm, whereas the lower end of the feed tube 4 (Fig. 1) is placed inside the crushing chamber 3 so that the imaginary longitudinal axis of the feed tube 4 passes through the center of the crushing chamber 3, the crushing disc 5, as well as the cutting blade 6 and the mixing blade 7, which ensures that the mass to be crushed enters the crushing disc 5 perpendicular to the surface of the crushing disc 5, and using the lower end of the feed tube 4, it is possible to adjust the diameter of the outlet opening 8 and thus the degree of crushing. For this purpose, there are three groups of notches 4.2 at the lower edge of the feed tube 4 (Fig. 4), each group having four notches of different depths. The three notches 4.2 of the same depth at the lower edge of the feed tube 4 are supported on three support lugs 3.3 inside the crushing chamber 3. The deeper the notch is selected, the higher the degree of crushing.

is achieved and vice versa. In order to ensure that the feed pipe 4 remains at a selected height inside the crushing chamber 3, the crushing chamber 3 is equipped with tension slots 3.1 and a tension rod around the outer wall of the crushing chamber 3 and a tension rod locking clip 3.2 (Fig. 1), which in combination allow the diameter of the upper part of the crushing chamber 3 to be reduced by compressing the tension slots 3.1 and thereby ensure that the lower end of the feed pipe 4 remains at a selected height inside the crushing chamber 3.

The apple crusher (Fig. 1) works as follows. The feed tube 4 is placed on the crushing chamber 3 so that the lower end of the feed tube 4 is inside the crushing chamber 3. In order to adjust the diameter of the outlet opening 7 and thus the degree of crushing, the lower end of the feed tube 4 must be fixed at a suitable height inside the crushing chamber 3. To do this, one notch 4.2 of suitable depth is selected from each of the three groups of notches of different depths on the lower edge of the feed tube 4 (Fig. 4) and the feed tube 4 is rotated around its imaginary longitudinal axis so that the three blocks 4.2 of the selected depth rest on the three support lugs 3.3 located inside the crushing chamber 3 (Fig. 3). In order for the feed tube 4 to remain in the selected position inside the crushing chamber 3, the crushing chamber 3 is surrounded by a tension rod and the tension rod locking clip 3.2 belonging to it, by means of which the tension slots 3.1 in the upper part of the crushing chamber 3 are compressed together, as a result of which the diameter of the upper part of the crushing chamber 3 decreases and the feed tube 4 is pressed motionlessly into the grip of the crushing chamber 3 (Fig. 1). Then the electric motor 2 is started and the washed apples are poured into the feed tube 4 (Fig. 1). The apples slide down along the feed tube 4 and fall onto a rotating compact assembly formed by the crushing disc 5, the cutting blade 6 and the mixing blade 7 (Fig. 2). After one full revolution of the cutting blade 6 with asymmetrical cutting teeth 6.1, no uncut areas remain on the cutting surface of the mass to be crushed. The mixing blade 7 disperses the load created by the mass to be crushed onto the crushing disc 5 and the cutting blade 6. The crushed mass is thrown from the crushing disc 5 into the outlet 8 and from there into the drain chute 9 (Fig. 1) by centrifugal force. Depending on the diameter of the outlet 8, which is regulated by the height of the lower end of the feed tube 4 in the crushing chamber 3, either larger or smaller pieces of crushed apple mass or apple puree are obtained. The deeper the selected notches 4.2, the greater part of the outlet 8 is covered by the lower end of the feed tube 4 and the greater the degree of crushing of the apples and vice versa.

The apple crusher is designed to operate on a 220 V power supply. The engine power of the apple crusher is 2200 W, the productivity is 3600 liters of apples per hour. However, if the apple crusher is operated by two people, one of whom constantly loads the apples into the feed tube and the other is engaged in the crushing of the apples,

By removing the containers filled with mass and replacing them with empty containers, the productivity can be increased to 6000 liters of apples per hour. The apples can be poured directly from the bucket into the feed chute. The weight of the apple crusher is 35 kg. The crushing disc is made of 3 mm stainless steel and the cutting blade and mixing blade are made of 5 mm thick stainless steel. The rotation speed of the compact assembly consisting of the crushing disc, cutting blade and mixing blade is 2800 rpm. The compact assembly is maintenance-free. The feed chute, crushing chamber and drain chute are made of plastic specially designed for the food industry. The manufacturer and distributor of the apple crusher is Masito OÜ.

List of symbols

1-base frame

1.1-First support legs of the base frame

1.2-subframe rear support legs

1.3-intermediate beam

2-electric motor

3-crushing chamber

3.1-tension slots

3.2-tensioning strap with tensioning strap locking clip

3.3-supporting cams inside the crushing chamber

4-feed pipe

4.1-feed tube inlet

4.2-notches at the lower end of the feed tube

5-crushing disc

5.1-Diagonal rectangular slot made in the crushing disc

6- cutting blade

6.1-Incisors

7-mixing blade

8-outlet

9-drainage channel

Claims (10)

1. An apple crusher comprising a base frame (1) with four support legs, the rear support legs of which are inclined forward and longer than the first support legs, an electric motor (2), a crushing chamber (3) comprising a crushing disc (5), a cutting blade (6) and a mixing blade (7), and a feed pipe (4) with an inner diameter of 240 mm detachably connected to the crushing chamber (3), the imaginary longitudinal axis of which coincides with the imaginary longitudinal axis of the crushing chamber (3) and is perpendicular to the surface of the crushing disc (5), and an outlet (8) in the lower part of the wall of the crushing chamber (3) and a drain chute (9) connected to the outlet (8), characterized in that the angle of inclination of the electric motor (2) and the crushing chamber (3) connected to the electric motor (2) and the feed pipe (4) connected to the crushing chamber (4) with respect to the ground is 45 degrees; the inlet opening (4.1) of the feed tube (4) is cut at a 45 degree angle and the length of the feed tube (4) measured from the shortest point is 850 mm and the lower edge of the feed tube (4) has several groups of notches of different depths (4.2); on one perimeter of the inner side of the crushing chamber (3) there are support lugs (3,3), on which the notches of the same depth (4.2) in the lower edge of the feed tube (4) are supported; in the upper part of the crushing chamber (3) there are tension slots (3.1) and around the outer wall of the crushing chamber (3) there is a tension rope with a tension rope locking clip (3.2), which in combination allow the diameter of the upper part of the crushing chamber (3) to be reduced by compressing the tension slots (3.1) and thereby ensure that the lower end of the feed tube (4) remains at a selected height inside the crushing chamber (3); The crushing disc (5), cutting blade (6) and mixing blade (7) are integrally connected into one compact assembly. 2. Apple crusher according to claim 1, characterized in that the length of the first support legs (1.1) of the base frame (1) is 390-420 mm and the length of the rear support legs (1.2) is 560-590 mm, and the angle between the first support legs (1.1) and the rear support legs (1.2) is 60-70 degrees. 3. Apple crusher according to claim 1, characterized in that the lower edge of the feed tube (4) has three groups of notches, each group having four notches (4.2) of different depths. 4. An apple crusher according to claim 1, characterized in that the inner wall of the crushing chamber (3) has three support lugs (3.3) on the perimeter. 5. Apple crusher according to claim 1, characterized in that the cutting blade (6) is welded into a diagonal rectangular slot (5.1) made for this purpose in the crushing disc (5) so that the lower edge of the cutting blade (6) and the lower surface of the crushing disc (5) are in the same plane. 6. Apple crusher according to claims 1 and 4, characterized in that the mixing aid (7) is an inverted U-shaped part of the cutting blade (6) without cutting teeth in the middle of the cutting blade (6). 7. Apple crusher according to claims 1 and 5, characterized in that the cutting blade (6) is provided with cutting teeth (6.1). 8. Apple crusher according to claim 1, 5 and 7, characterized in that the cutting teeth (6.1) of the cutting blade (6) are perpendicular to the plane of the crushing disc (5) and asymmetrically to the imaginary vertical axis passing through the center of the crushing disc (5). 9. Apple crusher according to claims 1 and 2, characterized in that there are two intermediate beams (1.3) between the rear support legs (1.2) for attaching the electric motor (2). 10. Apple crusher according to claim 1, 2 and 9, characterized in that the two intermediate beams (1.3) have a length of 380-420 mm.