Steam shrinking machine

Abstract

The utility model discloses a steam shrinking machine which comprises a steam shrinking mechanism, a plate type material conveying mechanism is arranged in an inner cavity of the steam shrinking mechanism, a steam generator is installed on the surface of the bottom of the steam shrinking mechanism, and a box wall scale scraping assembly is arranged in an inner cavity of the steam generator. According to the utility model, the plate type material conveying mechanism is used for replacing a traditional roller type conveying mechanism, so that products can be stably placed, and meanwhile, the products are prevented from being clamped in the gaps of the rotating rollers in the process of being conveyed to the steam tunnel, and the problem of direction deviation is avoided; therefore, each part of the product packaging film can be in effective contact with steam to shrink; meanwhile, a tank wall scale scraping assembly is arranged in the water tank of the shrinking machine, a servo electric cylinder is used for pulling a movable plate to move left and right, a frosted strip making contact with the inner wall of the water tank is forced to scrape off scale on the inner wall of the water tank under elastic supporting of a hard rubber strip, and therefore the phenomenon that the water tank is burnt out due to local overheating caused by scaling in the water tank is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steam shrink machine auxiliary equipment, in particular to a steam shrink machine. Background Art

[0002] A steam shrink machine is a packaging device that uses steam as a heat source and utilizes the characteristics of steam being easy to diffuse and heat source being evenly distributed to shrink the film layer and wrap the product. It is suitable for the film packaging of some combined sales products. Since most traditional steam shrink machines use a roller transport mechanism to transport products, the roller transport mechanism drives the product to move by driving the roller shaft to rotate. Driven by the roller shaft, the product is easy to deviate from the original transport direction, and there are gaps between the rollers. The workpiece placed on the roller is easy to get stuck in the gap between the rollers, resulting in the outer film of the product not being evenly heated during the steam shrinking process and deforming. At the same time, since the heat source of the steam shrink machine comes from steam, and the aqueous solution inside the water tank of the steam shrink machine is usually a consumable, scale accumulates inside the water tank under long-term evaporation operation. However, since the water tank is difficult to disassemble and clean, it is easy for the water tank to be locally overheated and damaged due to scale accumulation. Utility Model Content

[0003] The utility model aims to provide a steam shrinking machine to solve the problems raised in the background technology in view of the shortcomings of the prior art.

[0004] To achieve this purpose, the utility model adopts the following technical solutions:

[0005] A steam shrinking machine comprises a steam shrinking mechanism, a plate-type material transport mechanism is arranged in the inner cavity of the steam shrinking mechanism, a steam generator is installed on the bottom surface of the steam shrinking mechanism, and a box wall scale scraping assembly is arranged in the inner cavity of the steam generator; the steam shrinking mechanism comprises a frame, a steam tunnel fixed on the top of the frame, and a steam conveying pipeline connected to the steam generator and penetrating into the inner cavity of the steam tunnel.

[0006] The plate-type material transport mechanism comprises a driving shaft rotatably connected to the right side of the steam tunnel cavity, a driven shaft rotatably connected to the left side of the steam tunnel cavity, and chains arranged on both sides of the driven shaft and the driving shaft, and chain plates are arranged between the chains;

[0007] The steam generator includes a water tank containing an aqueous solution and two groups of electric heating rods fixed in the inner cavity of the water tank; wherein the tank wall scale scraping assembly includes a movable plate movably arranged in the inner cavity of the water tank, grooves opened on the surface of the movable plate around the movable plate, and frosting strips fixed in the grooves; a servo electric cylinder is installed on the right side wall of the water tank, and the telescopic rod of the servo electric cylinder penetrates into the inner cavity of the water tank and is connected to the right side wall of the movable plate.

[0008] As a preferred solution of the steam shrink machine, the movable plate is vertically placed in the inner cavity of the water tank, and the vertical cross-sectional shape of the movable plate is coupled with the vertical cross-sectional shape of the water tank.

[0009] As a preferred solution of the steam shrink machine, two through holes for power supply and heating rods are provided at the front and rear positions inside the movable plate, and hard rubber strips are fixed in the inner cavity of the groove to allow the frosted strip to have a clearance to move inward and outward, wherein the side of the frosted strip away from the groove contacts the inner cavity side wall of the water tank.

[0010] As a preferred solution of the steam shrink machine, a bracket is fixed on the right side wall of the water tank, the left surface of the bracket is fixedly connected to the right surface of the bottom of the servo electric cylinder, and a circular hole is opened on the right side wall of the water tank for the servo electric cylinder telescopic rod to pass through and move, and a dynamic sealing ring is arranged inside the circular hole.

[0011] As a preferred solution of the steam shrink machine, connection holes for the steam delivery pipeline to pass through are opened at the front and rear positions of the top surface of the water tank, so as to supply the steam generated inside the water tank to enter the inner cavity of the steam tunnel along the steam delivery pipeline.

[0012] As a preferred solution of the steam shrinking machine, a blower is installed on the top surface of the steam tunnel to extract excess steam inside the steam tunnel, and a plurality of leather curtains are fixed to the left and right ports of the steam tunnel by adhesive.

[0013] As a preferred solution of the steam shrink machine, the front and rear ends of the driven shaft are rotatably connected to the front and rear side walls of the inner cavity of the steam tunnel, the rear end of the driving shaft is rotatably connected to the rear side wall of the inner cavity of the steam tunnel, and the front end of the driving shaft passes through the steam tunnel; wherein, sprockets are fixed on the front and rear sections of the outer rings of the driving shaft and the driven shaft, and the chain is installed on the sprockets.

[0014] As a preferred solution of the steam shrink machine, a drive motor is installed on the front side wall of the steam tunnel, and the output shaft of the drive motor is fixedly connected to the end of the drive shaft located at the front side of the steam tunnel through a coupling.

[0015] As a preferred solution of the steam shrink machine, each of the chain plates is hinged to each other front and back, the left and right ends of the chain plates are connected to the side of the chain close to each other, and the products to be shrunk are placed on the upper surface of the chain plates.

[0016] Beneficial effects of the utility model:

[0017] The utility model replaces the traditional roller transport mechanism with a plate material transport mechanism, so that the product can be placed stably, and at the same time ensures that the product will not be stuck in the gap between the rollers and will not have the problem of directional deviation during the transportation to the steam tunnel, so that all parts of the product packaging film can effectively contact the steam for shrinkage; at the same time, the utility model arranges a box wall scale scraping component in the water tank of the shrinking machine, uses a servo electric cylinder to pull the movable plate to move left and right, and forces the frosted strip in contact with the inner wall of the water tank to scrape off the scale on the inner wall of the water tank under the elastic support of the hard rubber strip, thereby preventing scaling inside the water tank from burning out due to local overheating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the embodiments of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work.

[0019] Figure 1 It is a schematic diagram of the overall structure of the steam shrinking machine described in the utility model.

[0020] Figure 2 It is a structural schematic diagram of the plate-type material transport mechanism described in the utility model.

[0021] Figure 3 It is a structural schematic diagram of the steam contraction mechanism described in the utility model.

[0022] Figure 4 It is a cross-sectional structural schematic diagram of the steam generator described in the utility model.

[0023] Figure 5 It is a structural schematic diagram of the box wall scale scraping assembly described in the utility model.

[0024] In the figure:

[0025] 1. Steam contraction mechanism; 11. Frame; 12. Steam delivery pipeline; 13. Steam tunnel; 14. Blower; 15. Leather blind; 2. Plate material transport mechanism; 21. Drive shaft; 22. Drive motor; 23. Chain; 24. Driven shaft; 25. Chain plate; 3. Steam generator; 31. Water tank; 32. Scale scraping assembly for tank wall; 321. Movable plate; 322. Through hole; 323. Groove; 324. Frosted strip; 325. Hard rubber strip; 33. Bracket; 34. Servo electric cylinder; 35. Electric heating rod. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term 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, it can be the internal connection of two components or the interaction relationship between 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.

[0030] like Figures 1 to 5 As shown, the utility model provides a steam shrinking machine, comprising a steam shrinking mechanism 1 , a plate-type material transporting mechanism 2 is arranged in the inner cavity of the steam shrinking mechanism 1 , and a steam generator 3 is installed on the bottom surface of the steam shrinking mechanism 1 .

[0031] Specifically, the steam shrinkage mechanism 1 of this embodiment includes a frame 11, a steam tunnel 13 fixed on the top of the frame 11, and a steam delivery pipeline 12 connected to the steam generator 3 and penetrating into the inner cavity of the steam tunnel 13. A blower 14 is installed on the top surface of the steam tunnel 13 to extract excess steam inside the steam tunnel 13, and a plurality of leather curtains 15 are adhered and fixed to the left and right ports of the steam tunnel 13 by adhesive.

[0032] The plate-type material transport mechanism 2 includes a driving shaft 21 rotatably connected to the right side of the steam tunnel 13, a driven shaft 24 rotatably connected to the left side of the steam tunnel 13, and chains 23 arranged on both sides of the driven shaft 24 and the driving shaft 21, and chain plates 25 are arranged between the chains 23.

[0033] The steam generator 3 further comprises a water tank 31 containing an aqueous solution, a tank wall scale scraping assembly 32 and two sets of electric heating rods 35 arranged in the inner cavity of the water tank 31, and a servo electric cylinder 34 is installed on the right side wall of the water tank 31;

[0034] Among them, the tank wall scale scraping assembly 32 includes a movable plate 321 movably arranged in the inner cavity of the water tank 31, grooves 323 opened on the surface of the movable plate 321 around, and a frosting strip 324 fixed inside the groove 323. The telescopic rod of the servo electric cylinder 34 penetrates into the inner cavity of the water tank 31 and is connected to the right side wall of the movable plate 321.

[0035] More specifically, the movable plate 321 is vertically placed in the inner cavity of the water tank 31, and the vertical cross-sectional shape of the movable plate 321 is coupled with the vertical cross-sectional shape of the water tank 31; at the same time, two through holes 322 for the power supply and heating rods 35 to pass through are opened at the front and rear positions inside the movable plate 321, and hard rubber strips 325 are fixed in the inner cavity of the groove 323 to allow the frosted strip 324 to have a clearance to move inward and outward, wherein the side of the frosted strip 324 away from the groove 323 is in contact with the inner cavity side wall of the water tank 31.

[0036] A bracket 33 is fixed on the right side wall of the water tank 31, and the left side surface of the bracket 33 is fixedly connected to the right side surface of the bottom of the servo electric cylinder 34. A round hole is provided on the right side wall of the water tank 31 for the telescopic rod of the servo electric cylinder 34 to pass through and move, and a dynamic sealing ring is provided inside the round hole. Connection holes for the steam delivery pipeline 12 to pass through are provided at the front and rear positions of the top surface of the water tank 31, which are used to supply the steam generated inside the water tank 31 to enter the inner cavity of the steam tunnel 13 along the steam delivery pipeline 12.

[0037] The front and rear ends of the driven shaft 24 are both rotatably connected to the front and rear side walls of the inner cavity of the steam tunnel 13, the rear end of the driving shaft 21 is rotatably connected to the rear side wall of the inner cavity of the steam tunnel 13, and the front end of the driving shaft 21 passes through the steam tunnel 13; wherein, sprockets are fixed on the front and rear sections of the outer rings of the driving shaft 21 and the driven shaft 24, and the chain 23 is installed on the sprockets; a driving motor 22 is installed on the front side wall of the steam tunnel 13, and the output shaft of the driving motor 22 is fixedly connected to one end of the driving shaft 21 located on the front side of the steam tunnel 13 through a coupling, and each chain plate 25 is hinged to each other front and back, and the left and right ends of the chain plate 25 are connected to the side of the chain 23 close to each other, and the upper surface of the chain plate 25 is placed with the product to be shrink-wrapped.

[0038] According to the above-mentioned preferred technical solution, the workflow of the technical solution is described as follows:

[0039] The utility model replaces the traditional roller transport mechanism with a plate material transport mechanism 2. After the product is coated on the surface of the product by the coating mechanism, it is transmitted to the chain plate 25. The driving motor 22 provides a rotational force for the driving shaft 21, driving the chain 23 to drive the driven shaft 24 and the chain plate 25 to operate, so that the product can be stably placed on the chain plate 25. At the same time, it is ensured that the product will not be stuck in the gap between the rollers and will not have the problem of direction deviation during the transportation to the steam tunnel 13. The aqueous solution inside the water tank 31 is converted into steam under the heating effect of the electric heating rod 35. The steam enters the steam tunnel 13 along the steam conveying pipeline 12, so that each part of the product packaging film can effectively contact the steam for shrinkage, and the effect of uniform coating is achieved.

[0040] After the steam shrinking machine of the utility model has been used for a period of time, cleaning liquid can be added to the water tank 31 through the water inlet. At the same time, the movable plate 321 is pulled left and right along the inside of the water tank 31 by the telescopic traction of the servo electric cylinder 34, forcing the frosting strip 324 to scrape the scale on the inner wall of the water tank 31 under the elastic support of the hard rubber strip 325. After multiple reciprocating scrubbing, the dirt and waste water can be discharged through the drain port, and then new aqueous solution is added to the water tank 31, thereby avoiding scaling inside the water tank 31 and causing the water tank 31 to burn out due to local overheating.

[0041] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A steam shrink machine, characterized in that: It comprises a steam contraction mechanism (1), a plate-type material transport mechanism (2) is arranged in the inner cavity of the steam contraction mechanism (1), a steam generator (3) is installed on the bottom surface of the steam contraction mechanism (1), and a box wall scale scraping component (32) is arranged in the inner cavity of the steam generator (3); The steam shrinkage mechanism (1) comprises a frame (11), a steam tunnel (13) fixed on the top of the frame (11), and a steam delivery pipeline (12) connected to the steam generator (3) and penetrating into the inner cavity of the steam tunnel (13); The plate-type material transport mechanism (2) comprises a driving shaft (21) rotatably connected to the right side of the inner cavity of the steam tunnel (13), a driven shaft (24) rotatably connected to the left side of the inner cavity of the steam tunnel (13), and chains (23) arranged on both sides of the driven shaft (24) and the driving shaft (21), and chain plates (25) are arranged between the chains (23); The steam generator (3) comprises a water tank (31) containing an aqueous solution, and two groups of electric heating rods (35) fixed in the inner cavity of the water tank (31); wherein the tank wall scale scraping assembly (32) comprises a movable plate (321) movably arranged in the inner cavity of the water tank (31), grooves (323) provided on the surface of the movable plate (321) around the movable plate (321), and a frosting strip (324) fixed in the groove (323); a servo electric cylinder (34) is installed on the right side wall of the water tank (31), and the telescopic rod of the servo electric cylinder (34) penetrates into the inner cavity of the water tank (31) and is connected to the right side wall of the movable plate (321).

2. The steam shrinking machine according to claim 1, characterized in that: The movable plate (321) is vertically placed in the inner cavity of the water tank (31), and the vertical cross-sectional shape of the movable plate (321) is coupled with the vertical cross-sectional shape of the water tank (31).

3. The steam shrinking machine according to claim 1, characterized in that: The movable plate (321) is provided with two through holes (322) for passing two power supply heating rods (35), and a hard rubber strip (325) is fixed in the inner cavity of the groove (323) to allow the frosted strip (324) to have a clearance for moving inward and outward, wherein the side of the frosted strip (324) away from the groove (323) contacts the inner cavity side wall of the water tank (31).

4. The steam shrinking machine according to claim 1, characterized in that: A bracket (33) is fixed on the right side wall of the water tank (31), the left side surface of the bracket (33) is fixedly connected to the right side surface of the bottom of the servo electric cylinder (34), and a circular hole for the telescopic rod of the servo electric cylinder (34) to penetrate and move is opened on the right side wall of the water tank (31), and a dynamic sealing ring is arranged inside the circular hole.

5. The steam shrinking machine according to claim 1, characterized in that: The top surface of the water tank (31) is provided with connection holes for the steam delivery pipeline (12) to pass through at front and rear positions, so as to allow the steam generated inside the water tank (31) to enter the inner cavity of the steam tunnel (13) along the steam delivery pipeline (12).

6. The steam shrinking machine according to claim 1, characterized in that: A blower (14) is installed on the top surface of the steam tunnel (13) for extracting excess steam from the steam tunnel (13), and a plurality of leather blinds (15) are fixed to the left and right ends of the steam tunnel (13) by adhesive.

7. The steam shrinking machine according to claim 1, characterized in that: The front and rear ends of the driven shaft (24) are both rotatably connected to the front and rear side walls of the inner cavity of the steam tunnel (13), the rear end of the driving shaft (21) is rotatably connected to the rear side wall of the inner cavity of the steam tunnel (13), and the front end of the driving shaft (21) passes through the steam tunnel (13); wherein sprockets are fixed on the front and rear sections of the outer rings of the driving shaft (21) and the driven shaft (24), and the chain (23) is mounted on the sprockets.

8. The steam shrinking machine according to claim 1, characterized in that: A driving motor (22) is installed on the front side wall of the steam tunnel (13), and the output shaft of the driving motor (22) is fixedly connected to one end of the driving shaft (21) located on the front side of the steam tunnel (13) through a coupling.

9. The steam shrinking machine according to claim 1, characterized in that: Each of the chain plates (25) is hinged to each other front and back, the left and right ends of the chain plate (25) are connected to the side of the chain (23) close to each other, and the product to be shrink-wrapped is placed on the upper surface of the chain plate (25).

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