Crayfish vacuum packaging device

Abstract

The utility model discloses a crayfish vacuum packaging device, and belongs to the field of crayfish processing. The device mainly comprises a workbench, two sets of containing grooves are symmetrically formed in the workbench, and four sets of packaging grooves are symmetrically formed in the containing grooves; the pressing and holding assembly comprises two sets of supporting strips symmetrically installed in the containing groove, pressing and holding grooves are formed in the supporting strips, inner grooves are formed in the two sides of the inner wall of each pressing and holding groove, pressing parts are arranged on the two sides of the two sets of supporting strips and comprise guide columns arranged on the two sides of the two sets of supporting strips, and a pressing strip is connected between the two sets of horizontally-arranged guide columns in a sleeved mode. Silica gel strips are arranged on two sides of the pressing strip; two sets of connecting rods are connected between the two sets of pressing strips, and fixing pins are inserted into the side faces of the supporting strips and provided with two sets of elastic anti-disengaging parts. According to the crayfish vacuum packaging device, the multiple grooves are formed to synchronously contain multiple bags of crayfish, bag openings are synchronously pressed on the two sides of the pressing assembly, and the problem that traditional step-by-step pressing is low in efficiency is solved.

Description

Technical Field

[0001] This utility model relates to the field of crayfish processing technology, and in particular to a crayfish vacuum packaging device. Background Technology

[0002] In the crayfish processing industry, vacuum packaging is a core step in extending product shelf life and preserving flavor and quality. Currently, crayfish vacuum packaging mainly relies on traditional single-station vacuum packaging machines. The core operation process involves pressing and fixing the bag opening area, sealing the bag opening, starting a vacuum pump to extract air from the bag, and finally using a heating strip to complete the sealing.

[0003] Currently, traditional crayfish vacuum packaging equipment mostly adopts a single-bag placement and single-side clamping operation mode: operators need to place the packaging bags containing crayfish one by one into the equipment's working area, and then operate the clamping mechanisms on both sides of the working area to press the bag opening in stages—first pressing down one side of the clamping mechanism to fix one end of the bag opening, then operating the other side mechanism to complete the seal, and finally starting the vacuuming and sealing process. However, the staged pressing is inefficient, and completing the pressing of the packaging bags on both sides requires two independent operations, which is quite time-consuming. Therefore, a crayfish vacuum packaging device needs to be designed.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0005] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a crayfish vacuum packaging device to solve the problems of low efficiency and long time consumption caused by the traditional crayfish vacuum packaging equipment adopting the mode of placing one bag at a time and pressing one side step by step, which requires two operations on the clamping mechanisms on both sides.

[0006] The technical solution adopted by this application to solve its technical problem is: a vacuum packaging device for crayfish. It includes a vacuum packaging component, a pressing component, and a limiting component. The vacuum packaging component includes a worktable with two sets of symmetrically arranged placement slots. Four sets of symmetrically arranged packaging slots are formed on the placement slots, and the packaging slots and the surface of the placement slots form a sunken structure. The pressing component includes two sets of symmetrically arranged support bars installed in the placement slots. Each support bar has a pressing slot, and the inner wall of the pressing slot has recessed grooves on both sides. Pressing parts are provided on both sides of the two sets of support bars. Each pressing part includes guide posts on both sides of the two sets of support bars. A pressing strip adapted to the pressing slot is sleeved between the two horizontally arranged guide posts. Silicone strips adapted to the recessed grooves are provided on both sides of the pressing strip. Two sets of connecting rods connect between the two sets of pressing strips. A fixing pin is inserted into the side of each support bar, and the fixing pin has two sets of elastic anti-detachment parts.

[0007] Furthermore, the limiting component includes pads installed on the placement groove and located on both sides of the support strip. The pads are elongated and parallel to the support strip, with their top surface slightly higher than the upper surface of the support strip, forming a temporary support platform for the bag opening.

[0008] Two sets of side blocks are installed on the side of the pad near the support strip at both ends. A fixing rod is installed through the side block. A pressure rod is connected between one end of the two sets of fixing rods. A spring is sleeved on the fixing rod. One end of the spring is connected to the pressure rod and the other end is connected to the side block. The spring is in a pre-stretched state by default and continuously applies a pulling force toward the side of the pad to the pressure rod, so that the pressure rod always tends to move toward the pad. The pressure rod is suitable for contacting the opening of the packaging bag.

[0009] Furthermore, two sets of parallel fixed shafts are vertically mounted on the side of the workbench. The two sets are parallel and spaced apart. Rotating shafts are fixedly sleeved at both ends of each fixed shaft. The four rotating shafts are distributed in a rectangular shape. A sealing cover is provided between one end of each of the four sets of rotating shafts. Two sets of connecting shafts are installed at both ends of the sealing cover. The sealing cover is movably sleeved with one end of the rotating shaft through the connecting shaft.

[0010] Furthermore, a drive component is fixedly mounted at one end of one of the fixed shafts, and the drive component is directly fixed to the side of the worktable.

[0011] Furthermore, the side of the sealing cover is connected to an air extraction port for connecting to an external vacuum extraction device. Two sets of heat sealing units are installed on the bottom surface of the inner wall of the sealing cover. The heat sealing unit consists of a heating strip, a heat insulation base, and a temperature control system.

[0012] Furthermore, two sets of handles are integrated and installed on the sealing cover. The two sets of handles are located on both sides of the top of the sealing cover and are horizontally symmetrically distributed.

[0013] Furthermore, a silicone anti-slip pad is provided at the contact point between the pressure strip and the packaging bag.

[0014] Furthermore, the connecting rod and the two sets of pressure strips form a frame structure.

[0015] The beneficial effects of this application are as follows: The crayfish vacuum packaging device provided by this application can simultaneously accommodate multiple bags of crayfish through two sets of placement slots and four sets of packaging slots on the worktable, eliminating the need for individual bag operation and reducing the time-consuming process of repeated placement. The pressing component utilizes connecting rods to form a frame-type pressing strip structure, which, together with guide columns, fixing pins, and silicone strips, can simultaneously press the openings of multiple bags on both sides. The double-extrusion design of the silicone strip embedded in the inner groove replaces the traditional single-side step-by-step operation, completing the double-side limiting of multiple bags with a single press, significantly reducing the pressing time. At the same time, the integrated design of the sealing cover linkage drive, air extraction interface, and heat sealing unit enables the continuous execution of the sealing, vacuuming, and heat sealing processes, reducing manual intervention. From multi-bag loading to finished product removal, a highly efficient and automated process is formed, effectively solving the problem of low efficiency in the step-by-step pressing of traditional equipment.

[0016] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is an overall schematic diagram of a crayfish vacuum packaging device according to this application;

[0019] Figure 2 for Figure 1 A schematic diagram of a partial structure;

[0020] Figure 3 for Figure 1 Schematic diagram of medium-voltage support component structure;

[0021] Figure 4 for Figure 3 Enlarged view of point A;

[0022] Figure 5 for Figure 1 Bottom structure diagram;

[0023] Figure label:

[0024] 1. Vacuum packaging assembly; 11. Workbench; 12. Placement slot; 13. Packaging slot; 15. Fixed shaft; 151. Rotating shaft; 152. Connecting shaft; 16. Sealing cover; 17. Handle; 18. Air extraction port; 19. Heat sealing unit; 2. Pressing assembly; 21. Support bar; 22. Pressing groove; 23. Inner groove; 24. Guide post; 25. Pressure strip; 26. Silicone strip; 27. Connecting rod; 28. Fixing pin; 281. Anti-detachment part; 3. Limiting assembly; 31. Pad strip; 32. Side block; 33. Fixed rod; 34. Spring; 35. Pressure rod. Detailed Implementation

[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] Reference Figures 1 to 5 As shown in the figure, this utility model embodiment provides a crayfish vacuum packaging device, which mainly includes a vacuum packaging component 1, a pressing component 2, and a limiting component 3.

[0028] The vacuum packaging assembly 1 includes a workbench 11, on which two sets of placement slots 12 are symmetrically arranged, and four sets of packaging slots 13 are symmetrically arranged on the placement slots 12. The packaging slots 13 and the surface of the placement slots 12 form a sunken structure, and are suitable for placing and storing crayfish packaging bags. At the same time, the bottom of the packaging slots 13 has a vacuum hole that connects to the vacuum channel inside the workbench 11 to ensure that the gas is evenly discharged during the vacuuming process.

[0029] The pressing assembly 2 includes two sets of symmetrically arranged support bars 21 fixedly installed in the placement groove 12. The two sets of support bars 21 are arranged on both sides of four symmetrically opened packaging grooves 13. The support bars 21 are provided with pressing grooves 22. The inner walls of the pressing grooves 22 are provided with inner grooves 23 on both sides. The two sets of support bars 21 are provided with pressing parts on both sides. The pressing parts include guide posts 24 arranged on both sides of the two sets of support bars 21. A horizontally arranged pressing strip 25 is sleeved between the two sets of horizontally arranged guide posts 24. The size of the pressing strip 25 is adapted to the size of the pressing groove 22. At the same time, a flexible silicone strip 26 is provided on both sides of the pressing strip 25. The silicone strip 26 is adapted to the inner groove 23, so that it can be embedded into the inner groove 23 to form a double compression when pressed down. It can not only tightly fit the surface of the packaging bag through the elastic deformation of silicone, but also restrict the displacement of the bag opening by utilizing the groove structure, thereby improving the pressing effect.

[0030] Meanwhile, two sets of connecting rods 27 are fixed between the two sets of pressure strips 25. The two sets of connecting rods 27 and the two sets of pressure strips 25 form a frame structure so as not to affect the normal placement of the packaging bag containing crayfish in the packaging slot 13. A fixing pin 28 is inserted into the side of the support strip 21. The fixing pin 28 has two sets of elastic anti-detachment parts 281. This structure allows the elastic anti-detachment parts 281 to deform flexibly during the insertion of the fixing pin 28. After passing through the pressure strip 25 and the guide post 24, it automatically pops open, thereby firmly locking the pressure strip 25 in the predetermined position and preventing loosening due to vibration or air pressure during the pressing process.

[0031] In this application, a silicone anti-slip pad can be provided at the contact position between the pressure strip 25 and the packaging bag;

[0032] During vacuum packaging, first place the bag containing the crayfish into the packaging trough 13, allowing the crayfish to sink into the recessed structure. Then, smoothly overlap the bag opening, extending it over the support strip 21. Slide the pressure strip 25 down along the guide post 24, so that the silicone strip 26 covers the bag opening and is embedded in the inner groove 23. At this time, the anti-slip pad made of silicone increases the friction with the bag opening through its surface texture, preventing displacement. Then, insert the fixing pin 28, and use the automatic locking function of the elastic anti-detachment part 281 to fix the pressure strip 25.

[0033] In some embodiments, such as Figure 1 and Figure 5As shown, two sets of parallel fixed shafts 15 are vertically mounted on the side of the workbench 11. The two sets are parallel and spaced apart. Rotating shafts 151 are fixedly sleeved at both ends of the fixed shafts 15. The four rotating shafts 151 are distributed in a rectangular shape. At the same time, a sealing cover 16 is provided between one end of the four sets of rotating shafts 151. The sealing cover 16 is used to cover the working area of ​​the equipment. Two sets of connecting shafts 152 are fixedly installed at both ends of the sealing cover 16. The sealing cover 16 is movably sleeved with one end of the rotating shaft 151 through the connecting shafts 152, so that the sealing cover 16 can rotate around the axis of the fixed shaft 15.

[0034] A drive component (the specific structure is not shown in the figure, but it can be understood as a motor or other power component) is fixedly installed at one end of one of the fixed shafts 15. This drive component is directly fixed to the side of the worktable 11. When the drive component is running, it can drive the fixed shaft 15 connected to it to rotate. Since the two sets of fixed shafts 15 are linked with the sealing cover 16 through the rotating shaft 151 and the connecting shaft 152, the rotation of the fixed shaft 15 will synchronously drive the sealing cover 16 to flip, thereby realizing the switching between the open state and the closed state of the sealing cover 16 on the two sets of placement slots 12. After closing, it can cooperate with the worktable 11 and the placement slots 12 to form a relatively closed sealed space, providing a sealed environment for vacuum packaging operations.

[0035] In other embodiments, such as Figure 1 As shown, two sets of handles 17 are integrated on the sealing cover 16. The two sets of handles 17 are located on both sides of the top of the sealing cover 16 and are horizontally symmetrically distributed. The handles 17 adopt an ergonomic structural design, and their shape is adapted to the curvature of the hand, making it easy for the operator to grip and apply force during the opening or closing of the sealing cover 16, helping to easily control the opening and closing of the sealing cover 16 and improving the convenience of equipment operation.

[0036] In some other embodiments, such as Figure 1 and Figures 4-5 As shown, the sealing cover 16 has an air extraction port 18 connected to its side for connecting to an external vacuum extraction device to create a vacuum environment in the sealed space. At the same time, two sets of heat sealing units 19 are fixedly installed on the bottom surface of the inner wall of the sealing cover 16. The heat sealing unit 19 consists of a heating strip, a heat insulation base and a temperature control system. The heating strip is made of high-temperature resistant alloy material and can be heated to the set heat sealing temperature to achieve heat sealing by fitting it to the opening of the packaging bag.

[0037] The limiting component 3 includes padding strips 31 fixedly installed on the placement groove 12 and located on both sides of the support strip 21. The padding strips 31 are elongated structures, parallel to the support strips 21, with their top surfaces slightly higher than the upper surfaces of the support strips 21, forming a temporary support platform for the bag opening. When the crayfish packaging bag is placed into the packaging groove 13, the crayfish body sinks into the sunken packaging groove 13 due to gravity, and the bag opening naturally unfolds and overlaps the support strips 21, extending above the padding strips 31. The height difference of the padding strips 31 is used to initially limit the bag opening.

[0038] Furthermore, two sets of side blocks 32 are fixedly installed on the side of the pad strip 31 near the support strip 21 at both ends. A fixing rod 33 is provided through the side block 32. A pressure rod 35 is connected between one end of the two sets of fixing rods 33. A spring 34 is sleeved on the fixing rod 33. One end of the spring 34 is connected to the pressure rod 35, and the other end is connected to the side block 32. The spring 34 is in a pre-stretched state by default and continuously applies a lateral pulling force towards the pad strip 31 to the pressure rod 35, so that the pressure rod 35 always tends to move towards the pad strip 31. The pressure rod 35 is suitable for contacting the opening of the packaging bag.

[0039] After the bag opening passes the padding strip 31, the pressure rod 35, under the action of the spring 34, automatically adheres to the upper surface of the bag opening and presses the bag opening against the side of the padding strip 31 away from the support strip 21. At this time, the pressure rod 35 and the padding strip 31 form a clamping state, pre-fixing the bag opening to prevent displacement of the bag opening during vacuuming or heat sealing.

[0040] When the sealing cover 16 is closed, the heat-sealing unit 19 on the bottom of its inner wall is simultaneously pressed down. The heating strip of the heat-sealing unit 19 first contacts the pre-pressed bag opening, continues to apply pressure, and cooperates with the pad strip 31 to form a heat-sealing support surface. Since the bag opening has been pre-fixed by the pressure rod 35, the bag opening will not slide during the heat sealing process, ensuring that the heating strip is in full contact with the bag opening and achieving a uniform and firm heat seal. After the heat sealing is completed, the sealing cover 16 is lifted, and the spring 34 drives the pressure rod 35 to return to its original position, making it easy to remove the finished packaging bag.

[0041] In this application, a threaded groove can be provided on the guide post 24 at a certain position, and a fastener is screwed into the threaded groove. When it is necessary to press the bag opening, the fastener is rotated to make it slide down along the guide post 24, thereby pushing the pressure strip 25 to move down synchronously until the bag opening of the packaging bag is tightly pressed onto the pressure groove 22.

[0042] Working principle: The operator places the packaging bag containing crayfish into the packaging slot 13 of the workbench 11. Utilizing the sunken structure of the packaging slot 13, the crayfish naturally sink into the slot. The bag opening, due to gravity, forms a positional relationship with the support strip 21 and the pad strip 31: the bag opening first passes over the support strip 21 and then extends above the pad strip 31. At this time, the pad strip 31 initially limits the bag opening due to the height difference. At the same time, the pressure strip 25 of the pressing component 2 slides down along the guide post 24, the silicone strip 26 is embedded in the inner groove 23 of the pressing slot 22, the silicone anti-slip pad adheres to the bag opening, and is locked in place with the elastic anti-detachment part 281 of the fixing pin 28, completing the mechanical pre-pressing of the bag opening. Under the tension of the spring 34, the pressure rod 35 of the limiting component 3 presses the bag opening a second time onto the surface of the pad strip 31. The double pre-fixing ensures that the bag opening does not shift in subsequent processes.

[0043] The drive unit starts, causing the fixed shaft 15 to rotate. Through the linkage of the rotating shaft 151 and the connecting shaft 152, the sealing cover 16 rotates around the fixed shaft 15 and covers the placement slot 12. The sealing cover 16 fits tightly with the workbench 11 and the placement slot 12. The air extraction port 18 is connected to a vacuum device. The vacuum hole at the bottom of the packaging slot 13 is used to connect to the vacuum channel inside the workbench 11, quickly extracting air from the sealed space and creating a vacuum environment, providing the basic conditions for vacuum packaging of crayfish.

[0044] After the sealing cover 16 is closed, the heat-sealing unit 19 on the bottom surface of the inner wall is pressed down simultaneously. The heating strip of the heat-sealing unit 19 contacts the bag opening pre-fixed by the pressure rod 35, and can be heated by the high-temperature resistant alloy heating strip, forming a heat-sealing support surface with the pad strip 31. Since the bag opening is doubly limited by the pressure rod 35 and the pressure strip 25, the heating strip can fully contact the bag opening, and under the control of the temperature control system, a uniform and firm heat seal is achieved at the bag opening; the heat-insulating base effectively blocks heat conduction, preventing the sealing cover 16 and the equipment from overheating.

[0045] After heat sealing, the drive unit rotates in reverse, causing the sealing cover 16 to flip and open around the fixed shaft 15. During the lifting of the sealing cover 16, the spring 34 of the limiting component 3 drives the pressure rod 35 to reset, releasing the clamp on the bag opening; the operator can then pull out the fixing pin 28, slide the pressure strip 25 upwards, and remove the vacuum-sealed crayfish packaging bag. At this point, all components return to their initial state, ready for the next packaging operation, realizing a continuous and automated crayfish vacuum packaging process.

[0046] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A vacuum packaging device for crayfish, comprising a vacuum packaging component (1), a pressing component (2), and a limiting component (3), characterized in that: The vacuum packaging assembly (1) includes a workbench (11), on which two sets of placement slots (12) are symmetrically opened, and four sets of packaging slots (13) are symmetrically arranged on the placement slots (12). The packaging slots (13) and the surfaces of the placement slots (12) form a sunken structure. The pressing assembly (2) includes two sets of support bars (21) symmetrically arranged in the placement groove (12). The support bars (21) are provided with pressing grooves (22). The inner walls of the pressing grooves (22) are provided with inner grooves (23) on both sides. The two sets of support bars (21) are provided with pressing parts on both sides. The pressing parts include guide posts (24) provided on both sides of the two sets of support bars (21). The two sets of guide posts (24) arranged horizontally are fitted with pressing strips (25) adapted to the pressing grooves (22). The pressing strips (25) are provided with silicone strips (26) adapted to the inner grooves (23) on both sides. Two sets of connecting rods (27) are connected between the two sets of pressure strips (25), and a fixing pin (28) is inserted into the side of the support strip (21). The fixing pin (28) has two sets of elastic anti-detachment parts (281).

2. The crayfish vacuum packaging device according to claim 1, characterized in that: The limiting component (3) includes a pad (31) installed on the placement groove (12) and located on both sides of the support strip (21). The pad (31) is a long strip structure and is arranged parallel to the support strip (21). Its top surface is slightly higher than the upper surface of the support strip (21) to form a temporary support platform for the bag opening. Two sets of side blocks (32) are installed on the side of the pad (31) near the support bar (21) at both ends. A fixing rod (33) is provided through the side block (32). A pressure rod (35) is connected between one end of the two sets of fixing rods (33). A spring (34) is sleeved on the fixing rod (33). One end of the spring (34) is connected to the pressure rod (35), and the other end is connected to the side block (32). The spring (34) is in a pre-stretched state by default and continuously applies a pulling force toward the side of the pad (31) to the pressure rod (35), so that the pressure rod (35) always tends to move toward the pad (31). The pressure rod (35) is suitable for contacting the opening of the packaging bag.

3. The crayfish vacuum packaging device according to claim 2, characterized in that: Two sets of parallel fixed shafts (15) are vertically mounted on the side of the workbench (11). The two sets are parallel and spaced apart. Rotating shafts (151) are fixedly sleeved at both ends of each fixed shaft (15). The four rotating shafts (151) are arranged in a rectangular shape. A sealing cover (16) is provided between one end of each of the four sets of rotating shafts (151). Two sets of connecting shafts (152) are installed at both ends of the sealing cover (16). The sealing cover (16) is movably sleeved with one end of the rotating shaft (151) through the connecting shaft (152).

4. The crayfish vacuum packaging device according to claim 3, characterized in that: A drive component is fixedly mounted on one end of a set of fixed shafts (15), and the drive component is directly fixed to the side of the worktable (11).

5. The crayfish vacuum packaging device according to claim 4, characterized in that: The sealing cover (16) has an air extraction port (18) connected to its side for connecting to an external vacuum extraction device. Two sets of heat sealing units (19) are installed on the bottom surface of the inner wall of the sealing cover (16). The heat sealing unit (19) consists of a heating strip, a heat insulation base and a temperature control system.

6. The crayfish vacuum packaging device according to claim 5, characterized in that: Two sets of handles (17) are integrated on the sealing cover (16). The two sets of handles (17) are located on the top two sides of the sealing cover (16) and are horizontally symmetrically distributed.

7. A crayfish vacuum packaging device according to claim 5, characterized in that: The contact area between the pressure strip (25) and the packaging bag is provided with a silicone anti-slip pad.

8. A crayfish vacuum packaging device according to claim 6, characterized in that: The two sets of connecting rods (27) and the two sets of pressure strips (25) form a frame structure.

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