Novel cold knife for cold pressing

Abstract

The utility model provides a novel cold knife for cold pressing, which relates to the technical field of food packaging bag processing and comprises a main body, a cold pressing head in contact with a packaging bag is arranged on the bottom surface of the main body, and a water storage tank is arranged in the main body. The main body is provided with a water inlet and a water outlet which are communicated with the water storage tank, the inner wall of the water storage tank is provided with a plurality of cooling fins extending towards the interior of the water storage tank, the main body comprises a water tank plate and a top cover, and the water tank plate is fixedly connected with the top cover through a fastener; the inner wall of the water storage tank is provided with a plurality of cooling fins extending towards the interior of the water storage tank, the water inlet is formed in the center of the top of the top cover, the water outlets are formed in the two ends of the water tank plate, the heat dissipation area of the main water storage tank is increased, the heat dissipation effect is improved, the inner wall of the water storage tank leaks out by disassembling the top cover, and water scale is convenient to clean.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging bag processing, in particular to a new type of cold knife used for cold pressing. Background Art

[0002] Packaging bags are ubiquitous in daily life due to their low cost and ease of use. They can be used to package various snacks such as spicy strips, biscuits, nuts, etc. During the packaging bag processing process, the packaging bags are rolled on the film rack shaft. During the packaging bag transportation process, they are heat-sealed with a hot knife, then cold-pressed with a cold knife to shape, and finally cut into individual packaging bags.

[0003] A Chinese patent with authorization announcement number CN212448378U discloses a packaging bag edge sealing cooling device, in which an annular groove is opened inside the cold knife, one end of which is for water intake and the other end is for drainage. However, the cooling effect of this cold knife design is poor, especially under the action of the annular groove, the cooling water enters from one end of the annular channel, and its flow direction will undergo multiple changes, which creates a large resistance to the water, making it inconvenient to quickly discharge the water and unable to quickly absorb the heat of the cold knife itself. Utility Model Content

[0004] The utility model aims to provide a novel cold knife for cold pressing, aiming to solve the problem of poor cooling effect of the cold knife in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a new type of cold knife for cold pressing, including a main body, a cold pressing head in contact with the packaging bag is provided on the bottom surface of the main body, a water storage tank is provided inside the main body, a water inlet and a water outlet connected to the water storage tank are provided on the main body, and a plurality of heat sinks are formed on the inner wall of the water storage tank and extend toward the inside of the water storage tank.

[0006] A further technical solution of the utility model is that the main body comprises a water tank plate and a top cover, and the water tank plate and the top cover are fixedly connected by fasteners.

[0007] A further technical solution of the utility model is that the water inlet is arranged at the top center of the top cover, and the water outlet is arranged at both ends of the water tank plate.

[0008] A further technical solution of the utility model is that a plurality of heat sinks are evenly spaced and distributed on the inner bottom wall of the water storage tank.

[0009] A further technical solution of the utility model is that the cold pressing head can be slidably connected to the bottom of the main body along the length direction of the main body.

[0010] A further technical solution of the utility model is that a long groove which is slidably matched with the cold pressing head is provided at the bottom of the main body.

[0011] A further technical solution of the utility model is that the long groove is provided with a first limiting portion, and the cold pressing head is provided with a second limiting portion, and the first limiting portion and the second limiting portion cooperate with each other to limit the cold pressing head from sliding toward one end of the main body.

[0012] A further technical solution of the utility model is that the first limiting portion is a protrusion arranged on the opposite side wall of the long groove, and the second limiting portion is a groove opened on the opposite outer wall of the cold pressing head and the protrusion is embedded in it.

[0013] A further technical solution of the utility model is that the cold pressing head has a cold pressing surface in contact with the packaging bag, and the width of the cold pressing surface is smaller than the width of the main body.

[0014] A further technical solution of the utility model is that the cross section of the cold pressing head is T-shaped.

[0015] The beneficial effects of the utility model are:

[0016] 1. The inner wall of the water tank is provided with a plurality of heat sinks extending toward the inside of the water tank, thereby increasing the heat dissipation area of ​​the main water tank and improving the heat dissipation effect.

[0017] 2. By removing the top cover, the inner wall of the water tank can be exposed, making it easier to clean the scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model in the front view direction;

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model in the side view direction;

[0021] Figure 4 It is a schematic diagram of the exploded structure of the top cover and the water tank plate of the utility model;

[0022] Figure 5 It is a schematic diagram of the exploded structure of the main body and the cold pressing head of the utility model;

[0023] Figure 6 It is a three-dimensional structural schematic diagram of the cold pressing head of the utility model;

[0024] Figure 7 It is a side structural schematic diagram of the main body of the utility model.

[0025] In the figure: 10, main body; 101, water tank plate; 102, top cover; 11, water storage tank; 12, water inlet; 13, water outlet; 14, heat sink; 15, fastener; 16, long groove; 161, first limiting part; 17, water flow channel; 20, cold pressing head; 20a, cold pressing surface; 21, second limiting part. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.

[0027] like Figure 1 and Figure 2 As shown, a new type of cold knife for cold pressing includes a main body 10, and a cold pressing head 20 in contact with the packaging bag is arranged on the bottom surface of the main body 10, wherein the material of the main body 10 and the cold pressing head 20 is selected as a heat-conducting material, preferably aluminum, aluminum alloy (such as silicon aluminum alloy) or stainless steel, a water storage tank 11 is opened inside the main body 10, and a water inlet 12 and a water outlet 13 connected to the water storage tank 11 are opened on the main body 10, a water pipe is connected to the water inlet 12, cooling water is pumped into the water storage tank 11, and the cooling water is discharged from the water outlet 13, and the inner wall of the water storage tank 11 is provided with a plurality of heat sinks 14 extending toward the inside of the water storage tank 11, thereby increasing the heat dissipation area of ​​the water storage tank 11 of the main body 10, and when the cold pressing head 20 contacts the packaging bag after hot pressing and generates pressure, the heat on the packaging bag is transferred to the cold pressing head 20, and when the water in the main body 10 circulates, it absorbs the heat on the main body 10, thereby achieving the effect of rapid heat dissipation.

[0028] like Figure 4 As shown, the main body 10 includes a water tank plate 101 and a top cover 102, and the water tank plate 101 and the top cover 102 are fixedly connected by fasteners 15. The fasteners 15 are bolts. Threaded holes that match the bolt threads are opened on both ends of the water tank plate 101. Cooling water enters the water tank 11 for a long time, and scale is formed on the side wall of the water tank, which will reduce the cooling effect. By removing the top cover 102, the inner wall of the water tank 11 leaks out, which is convenient for cleaning the scale.

[0029] Specifically, the water inlet 12 is arranged at the top center of the top cover 102 , and the water outlets 13 are arranged at both ends of the water tank plate 101 .

[0030] like Figure 3 As shown, a plurality of heat sinks 14 are evenly spaced on the inner bottom wall of the water tank 11 and form a water flow channel 17 with the water tank 11. When the cooling water in the water tank 11 needs to be drained, the water between two adjacent heat sinks 14 can be discharged from the water flow channel 17.

[0031] Specifically, the cold pressing head 20 can be slidably connected to the bottom of the main body 10 along the length direction of the main body 10, so that the cold pressing head 20 can be easily disassembled and assembled.

[0032] like Figures 5 to 7 As shown, the bottom of the main body 10 is provided with a long groove 16 that slidably cooperates with the cold pressing head 20.

[0033] Specifically, the long groove 16 has a first limiting portion 161 , and the cold pressing head 20 is provided with a second limiting portion 21 . The first limiting portion 161 and the second limiting portion 21 cooperate with each other to limit the cold pressing head 20 from sliding toward one end of the main body 10 .

[0034] Specifically, the first limiting portion 161 is a protrusion arranged on the opposite side wall of the long groove 16, and the second limiting portion 21 is a groove opened on the opposite outer wall of the cold pressing head 20 and allowing the protrusion to be embedded. The shapes of the protrusion and the groove are both trapezoidal, rectangular, etc.

[0035] Specifically, the cold pressing head 20 has a cold pressing surface 20a in contact with the packaging bag, wherein the width of the cold pressing surface 20a is smaller than the width of the main body 10. During the cold pressing process, a cylinder is mostly used as a driving source to drive a cold knife to cold press the packaging bag. The pressure generated on the packaging bag is roughly constant. However, in the actual production process, the packaging film after hot pressing with a hot knife is prone to wrinkles. In order to eliminate this phenomenon, by replacing the cold pressing head 20 with a narrower width, the wrinkled bottom surface of the packaging film can be flattened. In other words, by changing the contact area between the cold pressing surface 20a and the packaging bag, the problem of wrinkles on the packaging film can be avoided. The narrower the width of the cold pressing head 20, the more obvious the pressure effect on the packaging bag.

[0036] Specifically, the cross section of the cold pressing head 20 is T-shaped. The T-shaped cold pressing head 20 has a large contact area with the main body 10 and a good heat dissipation effect, and can flatten the wrinkles of the packaging bag.

[0037] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new type of cold knife for cold pressing, characterized by: The invention comprises a main body (10), wherein a cold pressing head (20) in contact with a packaging bag is provided on the bottom surface of the main body (10), a water storage tank (11) is provided inside the main body (10), a water inlet (12) and a water outlet (13) in communication with the water storage tank (11) are provided on the main body (10), and a plurality of heat sinks (14) are provided on the inner wall of the water storage tank (11) and extend toward the inside of the water storage tank (11).

2. A new type of cold knife for cold pressing according to claim 1, characterized in that: The main body (10) comprises a water tank plate (101) and a top cover (102), wherein the water tank plate (101) and the top cover (102) are fixedly connected via a fastener (15).

3. A new type of cold knife for cold pressing according to claim 2, characterized in that: The water inlet (12) is arranged at the top center of the top cover (102), and the water outlet (13) is arranged at both ends of the water tank plate (101).

4. A new cold knife for cold pressing according to any one of claims 1 to 3, characterized in that: A plurality of heat sinks (14) are distributed at equal intervals on the inner bottom wall of the water storage tank (11), and form a water flow channel (17) with the water storage tank (11).

5. A new cold knife for cold pressing according to any one of claims 1 to 3, characterized in that: The cold pressing head (20) can be slidably connected to the bottom of the main body (10) along the length direction of the main body (10).

6. A new type of cold knife for cold pressing according to claim 5, characterized in that: The bottom of the main body (10) is provided with a long groove (16) that slidably cooperates with the cold pressing head (20).

7. A new type of cold knife for cold pressing according to claim 6, characterized in that: The long groove (16) is provided with a first limiting portion (161), and the cold pressing head (20) is provided with a second limiting portion (21), and the first limiting portion (161) and the second limiting portion (21) cooperate with each other to limit the cold pressing head (20) from sliding toward one end of the main body (10).

8. A new type of cold knife for cold pressing according to claim 7, characterized in that: The first limiting portion (161) is a protrusion arranged on the side wall opposite to the long groove (16), and the second limiting portion (21) is a groove opened on the outer wall opposite to the cold pressing head (20) and into which the protrusion is embedded.

9. A new type of cold knife for cold pressing according to claim 6, characterized in that: The cold pressing head (20) comprises a cold pressing surface (20a) in contact with the packaging bag, and the width of the cold pressing surface (20a) is smaller than the width of the main body (10).

10. A new type of cold knife for cold pressing according to claim 9, characterized in that: The cross section of the cold pressing head (20) is T-shaped.

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