Improved stirring frame of electric ice cream machine

Abstract

The utility model discloses an improved stirring frame of an electric ice cream machine. A shaft sleeve hole is formed in the center of the bottom plate, the rotating shaft is sleeved with the shaft sleeve hole, the rotating shaft is fixed to a bolt at the upper end of the rotating shaft through a nut, the two ends of the bottom plate are each fixedly provided with a vertical plate, the upper middle portion and the lower middle portion of the first vertical plate are each provided with a notch, the upper middle portion and the lower middle portion of the second vertical plate are each provided with a notch, and each notch is provided with two hole channels. A clamping groove is formed in the outer end of the sleeve rod, a sleeve sealing ring is clamped on the clamping groove, the sleeve rod penetrates through the hole channel to clamp the scraper plate at the notch, and the scraper plate is a nylon PA6 plastic plate. The scraper is high in strength and good in toughness and wear resistance. The scraping plate can be tightly attached to the barrel wall for scraping, scraping is thorough and clean, stirring is uniform, and machine blocking is avoided.

Description

Technical Field

[0001] This utility model relates to a mixing rack, and more particularly to an improved mixing rack for an electric ice cream machine. Background Technology

[0002] The process of making ice cream using an electric ice cream machine is as follows: First, mix milk, eggs, sugar, and other seasonings and pour the mixture into the mixing bowl of the ice cream machine. Turn on the power, and the mixing rack inside the mixing bowl begins to rotate and mix. At the same time, the cooling device surrounding the mixing bowl also begins to cool. Mix for about 30 minutes to an hour, then remove and freeze in a refrigerator until set. My utility model patent (patent number 202320633315.4, a machine for making ice cream and shaved ice) is similar to existing electric ice cream machines in that the scraper of the mixing rack is made of steel. However, using a steel scraper requires a 1-2 mm gap between the mixing bowl wall and the steel scraper. If no gap is left, the steel scraper will be tightly pressed against the steel mixing bowl wall without any gap. Therefore, when the mixing rack rotates, the steel plate will rub against the steel bowl, producing not only a harsh noise but also damaging the mixing bowl wall. Furthermore, and more seriously, because there is a 1-2 mm gap between the mixing tank wall and the steel scraper, the ice cream mixture gradually sticks to and freezes onto the mixing tank wall. It cannot be scraped clean, and as the mixing and cooling time increases, it accumulates thicker and thicker. This not only prevents the entire ice cream mixture from being thoroughly and evenly mixed, but also, if the thickness exceeds the gap and it freezes solid, it can cause the mixing rack to become stuck and jam, affecting operation. Additionally, existing mixing racks are fixed to the top of the mixing tank via a vertical shaft, with a curved steel strip at the bottom. During mixing, a lot of ice cream sticks to the vertical shaft, affecting the mixing effect. The curved steel strip at the bottom can also easily cut hands when removing the ice cream after it's made. Summary of the Invention

[0003] The purpose of this invention is to provide a mixing rack for an electric ice cream machine that is made of engineering plastic, has good toughness, can thoroughly scrape clean, and does not jam.

[0004] The technical solution adopted by this utility model is as follows: the mixing rack of this improved electric ice cream machine has a base plate located at the bottom of the mixing tank. A bushing hole is provided in the center of the base plate, and a rotating shaft is fitted into the bushing hole. A nut is screwed onto the stud on the rotating shaft for fixation. A vertical plate is connected and fixed to each end of the base plate. A notch is provided in the upper middle and lower middle parts of the outer side of the first vertical plate, and a notch is provided in the upper middle and lower middle parts of the outer side of the second vertical plate. Two channels penetrating the vertical plate are provided inside each notch. Two sleeve rods are fixed to the inner side of each scraper. A spring is fitted on each sleeve rod. An annular groove is provided at the outer end of each sleeve rod. A rubber sealing ring is fitted on each annular groove. The two sleeve rods fitted with springs pass through the channels to lock the scraper in the notch. The rubber sealing ring is fitted on the annular groove exposed in the channel. The scraper is a food-grade engineering plastic plate made of nylon PA6.

[0005] Furthermore, vertical plate one and vertical plate two are not on the same plane, and there is an angle greater than zero degrees between them.

[0006] Furthermore, the upper recess of the first upright plate is positioned opposite to the upper and middle recesses of the second upright plate, and the lower recess of the first upright plate is positioned opposite to the middle and lower recesses of the second upright plate.

[0007] Due to the adoption of the above technical solution, this utility model has the following beneficial effects: First, the scraper is a food-grade engineering plastic sheet made of nylon PA6. Nylon PA6, also known as polyamide 6, is a common synthetic fiber and engineering plastic. Its performance characteristics include high strength, toughness, and wear resistance, enabling it to withstand significant external forces and impacts. It can be used at higher temperatures, with a heat distortion temperature of 150℃. It exhibits good resistance to many chemicals, such as oils and solvents. Nylon PA6 has a certain degree of hygroscopicity, which increases the material's toughness after absorbing moisture. Therefore, a food-grade engineering plastic sheet made of nylon PA6, used as a scraper, offers high strength, good toughness, and wear resistance. Secondly, the outer recesses of the first and second vertical plates of the mixing rack are equipped with two and three scrapers, respectively. Each scraper is secured in the recess by two spring-loaded sleeves passing through a through-hole. Simultaneously, a rubber sealing ring is fitted onto an annular groove protruding from the through-hole. Furthermore, the two scrapers on the first plate and the three scrapers on the second plate are staggered. This design ensures the scrapers are securely held in the recess, preventing dislodgement, and allows for flexible horizontal movement, eliminating any untouched areas. Under the spring force, the scrapers remain firmly against the bucket wall, effectively scraping away the ice cream mixture and preventing it from sticking or freezing to the mixing bucket wall. Thorough and clean scraping ensures complete and uniform mixing of all the ice cream mixture without jamming. Thirdly, the working efficiency is high, shortening the mixing and cooling time from over 30 minutes to less than 25 minutes. Fourthly, the structure is simple, easy to manufacture, and easy to install and disassemble. Fifth, the scraper is easy to replace, and it won't cut your hands when taking out the prepared ice cream. Attached Figure Description

[0008] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0009] Figure 1 This is a three-dimensional schematic diagram of the external appearance of the present invention as it is installed inside the mixing tank.

[0010] Figure 2 This is a three-dimensional view of the front appearance of this utility model;

[0011] Figure 3 This is an exploded perspective view of the structure of the scraper, sleeve rod, spring, rubber sealing ring, and stirring frame of this utility model;

[0012] Figure 4 A three-dimensional diagram showing the spring clip and rubber sealing ring fitted onto the sleeve rod on the scraper. Detailed Implementation

[0013] Example 1, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the mixing rack of this improved electric ice cream machine has a stainless steel base plate 1 at the bottom of the mixing tank 14. A bushing hole 2 is located in the center of the base plate 1, and a rotating shaft 12 is fitted into the bushing hole 2. A nut is screwed onto the stud 13 of the rotating shaft 12 for fixation. A stainless steel upright plate is connected and fixed to each end of the base plate 1. An upright plate 1 has a notch 5 on its outer side at the upper and lower middle sections, and an upright plate 2 has a notch 5 on its outer side at the upper, middle, and lower middle sections. Each notch 5 has two through-holes 6 inside. Two stainless steel sleeves 8 are fixed to the inner side of the scraper 7. A spring 9 is fitted on each sleeve 8. An annular groove 10 is provided at the outer end of each sleeve 8. A rubber sealing ring 11 is fitted on each annular groove 10. The two sleeves with springs pass through the hole 6 and hold the scraper 7 in the recess 5. The rubber sealing ring 11 is fitted on the annular groove 10 exposed in the hole 6. The function of the rubber sealing ring is to seal the spring and prevent the spring from moving outward and dislodging. The scraper 7 is a food-grade engineering plastic plate made of nylon PA6.

[0014] Example 2, an improved mixing rack for an electric ice cream machine as described in Example 1, wherein the first vertical plate 3 and the second vertical plate 4 are not on the same plane, and there is an angle greater than zero degrees between them. The purpose is to allow the scrapers on the first vertical plate 3 and the second vertical plate 4 to better adhere to the mixing tank wall, so that the scraping is more thorough and clean during mixing, the mixing range is larger, and the mixing is more uniform.

[0015] Example 3, an improved mixing rack for an electric ice cream machine as described in Example 1 or 2, wherein the upper recess of vertical plate 3 is positioned opposite to the upper and middle recesses of vertical plate 4, and the lower recess of vertical plate 3 is positioned opposite to the middle and lower recesses of vertical plate 4. The purpose is to offset the scrapers on vertical plates 3 and 4, allowing them to complement each other, avoiding overlapping scraping of the same area of ​​the mixing tank wall, eliminating dead corners, and achieving complete scraping of the mixing tank wall.

Claims

1. An improved mixing bowl for an electric ice cream maker, characterized by: The bottom plate (1) is located at the bottom of the mixing tank (14). A bushing hole (2) is provided in the center of the bottom plate (1). The rotating shaft (12) is fitted into the bushing hole (2). A nut is screwed onto the stud (13) on the rotating shaft (12) for fixation. A vertical plate is connected and fixed to each end of the bottom plate (1). A notch (5) is provided in the upper middle and lower middle parts of the outer side of the first vertical plate (3). A notch (5) is provided in the upper middle and lower middle parts of the outer side of the second vertical plate (4). Two through-holes (6) are provided inside each notch (5). Two sleeve rods (8) are fixed on the inner side of the scraper (7). A spring (9) is sleeved on each sleeve rod (8). An annular groove (10) is provided at the outer end of each sleeve rod (8). A rubber sealing ring (11) is sleeved on each annular groove (10). The two sleeve rods with springs pass through the hole (6) and clamp the scraper (7) in the notch (5). The rubber sealing ring (11) is sleeved on the annular groove (10) exposed in the hole (6). The scraper (7) is a food-grade engineering plastic plate made of nylon PA6.

2. An improved stirring frame for an electric ice cream maker as claimed in claim 1, wherein: The first vertical plate (3) and the second vertical plate (4) are not on the same plane, and there is an angle greater than zero degrees between them.

3. An improved mixing bowl for an electric ice cream maker as claimed in claim 1 or 2, wherein: The upper recess of the first upright plate (3) is positioned opposite to the upper and middle recesses of the second upright plate (4), and the lower recess of the first upright plate (3) is positioned opposite to the middle and lower recesses of the second upright plate (4).

Images