Sausage fresh-keeping packaging machine

Abstract

The sausage fresh-keeping packaging machine comprises a vacuum upper die, a vacuum lower die and a tensioning mechanism, the tensioning mechanism comprises two oppositely-arranged positioning assemblies, the two positioning assemblies are located on the two opposite sides of the vacuum upper die respectively, each positioning assembly comprises a positioning insertion needle, a sliding needle base and an upper rebound reset piece, and the positioning insertion needles are located on the two opposite sides of the vacuum lower die. The positioning contact pins are fixedly arranged on the lower surfaces of the sliding needle seats, the positioning contact pins on the two sliding needle seats are used for correspondingly puncturing the edges of the two sides of a preservative film coiled material respectively, and the sliding needle seats are in sliding connection with the vacuum upper mold; the sliding direction of the sliding needle seats is consistent with the arrangement direction of the two positioning assemblies, and the upper springback reset piece is used for preventing the two sliding needle seats from moving and approaching each other. According to the sausage packaging device, the shrinkage deformation amplitude of the packaging film can be controlled, so that sausage packaging is more compact.

Description

Technical Field

[0001] The present application relates to the field of food packaging technology, and in particular to a sausage fresh-keeping packaging machine. Background Art

[0002] Sausage is a common daily food. In the modern food industry, in order to store sausages for a long time, they are often sealed and preserved in vacuum packaging.

[0003] The vacuum packaging of sausages is generally carried out using a stretch film vacuum packaging machine. The stretch film vacuum packaging machine in the prior art mainly includes a reeling device, a forming upper mold, a forming lower mold, a vacuum upper mold, a vacuum lower mold, a transverse cutting knife and a longitudinal cutting knife. When the stretch film vacuum packaging machine is packaging sausages, the upper and lower layers of packaging film coils are unwound under the drive of the reeling device, and the forming lower mold moves upward to jointly shape the packaging film of the lower layer with the forming upper mold to form a recessed area for placing the sausage. When the sausage placed on the lower packaging film moves between the vacuum upper mold and the vacuum lower mold, the vacuum upper mold moves downward to jointly vacuumize the space around the sausage between the upper and lower packaging films with the vacuum lower mold, and seal the upper and lower packaging films. The longitudinal cutting knife and the transverse cutting knife cut and separate the sausage together with the sealed parts of the upper and lower packaging films from the upper and lower packaging films.

[0004] When the stretch film vacuum packaging machine vacuum packs sausages, the packaging film will shrink and deform in order to fit the surface of the sausage as much as possible. When multiple sausages are placed side by side, the surface flatness of the sausages as a whole is poor, so the packaging film is prone to large shrinkage and deformation after sealing, affecting the appearance of the sausages after packaging. Utility Model Content

[0005] In order to reduce the degree of shrinkage and deformation of the packaging film during vacuum packaging of sausages, the present application provides a sausage fresh-keeping packaging machine.

[0006] The sausage fresh-keeping packaging machine provided in this application adopts the following technical solution:

[0007] A sausage fresh-keeping packaging machine comprises a vacuum upper mold, a vacuum lower mold and a tensioning mechanism, the tensioning mechanism comprises two relatively arranged positioning components, the two positioning components are respectively located on two opposite sides of the vacuum upper mold, the positioning components comprise positioning pins, a sliding needle seat and an upper rebound reset member, the positioning pins are fixedly arranged on the lower surface of the sliding needle seat, the positioning pins on the two sliding needle seats are used to respectively correspond to puncture the two side edges of the cling film coil, the sliding needle seat is slidably connected to the vacuum upper mold, the sliding direction of the sliding needle seat is consistent with the arrangement direction between the two positioning components, and the upper rebound reset member is used to prevent the two sliding needle seats from moving close to each other.

[0008] By adopting the above technical solution, when packaging sausages, the sausages and the packaging film move between the vacuum upper mold and the vacuum lower mold, the vacuum lower mold moves downward close to the packaging film and the sausages, the positioning pins of the two positioning components pierce the side edges of the packaging film, and as the vacuum upper mold and the vacuum lower mold vacuum-pack the sausages, the packaging film shrinks and holds the sausages tightly. During this process, the packaging film drives the two positioning components to approach each other. When the two positioning components approach each other, the upper rebound reset part generates a reverse tensioning force on the shrinkage and deformation of the packaging film, which is beneficial to controlling the shrinkage and deformation amplitude of the packaging film, making the packaging of the sausages tighter, and is beneficial to ensuring the vacuum degree of the sausages after packaging.

[0009] After the sausage packaging action is completed, as the vacuum upper mold moves upward and backward, the positioning pin is separated from the packaging film and moves and resets under the action of the upper reset spring to wait for the next puncture positioning action on the packaging film.

[0010] Optionally, the sliding needle seat is provided with a magnet, and there is a magnetic attraction between the magnet and the vacuum upper mold, and the sliding needle seat is attached to the vacuum upper mold through the magnetic attraction between the magnet and the vacuum upper mold.

[0011] By adopting the above technical solution, the sliding needle seat is attached to the vacuum upper mold through magnetic attraction, making the installation of the sliding needle seat more convenient.

[0012] Optionally, the upper rebound reset member is a horizontally arranged compression spring, and the sliding needle seat is provided with a positioning hole for avoiding the upper rebound reset member.

[0013] By adopting the above technical solution, the positioning hole of the sliding needle seat can position the end of the upper rebound reset member, so that the installation state of the upper rebound reset member is more reliable. In addition, the positioning hole can provide a larger installation space for the upper rebound reset member, so as to facilitate the installation of a longer upper rebound reset member.

[0014] Optionally, a plurality of gaskets are provided between the bottom of the positioning hole and the upper rebound reset member.

[0015] By adopting the above technical solution and changing the thickness and number of the gaskets, the deformation state of the upper rebound reset member can be changed, thereby changing the tensioning force of the positioning assembly on the packaging film.

[0016] Optionally, the vacuum lower mold is provided with an avoidance hole for avoiding the positioning pin, the avoidance hole is a long hole, and the length direction of the avoidance hole is consistent with the sliding direction of the sliding needle seat.

[0017] By adopting the above technical solution, the avoidance pin hole can avoid the positioning pin and can guide the movement of the avoidance pin.

[0018] Optionally, the positioning assembly also includes a lower slider and a lower rebound reset member, the lower slider is slidably connected to the vacuum lower mold, the sliding direction of the lower slider is consistent with the sliding direction of the sliding needle seat, and the lower slider is provided with a positioning pin hole for avoiding the positioning pin; the upper rebound reset member is used to prevent the two sliding needle seats from moving closer to each other.

[0019] By adopting the above technical solution, after the positioning pin pierces the packaging film, it is inserted into the positioning pin hole, so that the upper and lower ends of the positioning pin are subject to strong constraints, so that the positioning pin can better withstand the reverse pulling force from the packaging film. The lower slider can move with the movement of the positioning pin, and when the positioning pin leaves the positioning hole, it can be reset under the action of the elastic force of the upper rebound reset member.

[0020] Optionally, the lower slider is provided with a ejector pin and a vertical compression spring, the ejector pin and the vertical compression spring are located in the positioning pin hole, the upper end of the ejector pin is lower than the upper end of the positioning pin hole, the vertical compression spring is located below the ejector pin, and the maximum compression amount of the vertical compression spring is greater than the fitting length between the positioning pin and the positioning pin hole.

[0021] By adopting the above technical solution, the ejector pin can cover the opening of the positioning pin hole and reduce the entry of impurities into the positioning pin hole. When the positioning pin is inserted into the positioning pin hole, the vertical compression spring can avoid the ejector pin that moves downward with the positioning pin. When the positioning pin exits the positioning pin hole, the vertical compression spring forces the ejector pin to reset to close the opening of the positioning pin hole.

[0022] Optionally, a threaded hole is provided at the lower end of the lower slider, the threaded hole is communicated with the positioning pin hole, the lower slider is connected with a set screw through the threaded hole, and the lower end of the vertical compression spring abuts against the set screw.

[0023] By adopting the above technical solution, the height positions of the vertical compression spring and the ejector pin can be adjusted by adjusting the height position of the set screw.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. When packaging sausages, the positioning pins of the two positioning components pierce the side edges of the packaging film. As the vacuum upper mold and the vacuum lower mold vacuum-pack the sausages, the packaging film shrinks and holds the sausages tightly. During this process, the packaging film drives the two positioning components to approach each other. When the two positioning components approach each other, the upper rebound reset part generates a reverse tensioning force on the shrinkage and deformation of the packaging film, which is beneficial to control the shrinkage and deformation amplitude of the packaging film and make the sausage packaging more compact.

[0026] 2. The sliding needle seat of the positioning component is attached to the vacuum upper mold by magnetic attraction, making the installation of the sliding needle seat more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the vacuum upper mold and the vacuum lower mold of the sausage fresh-keeping packaging machine of Example 1.

[0028] Figure 2 It is a schematic diagram of the working state of the vacuum upper mold and the vacuum lower mold in Example 1.

[0029] Figure 3 It is a structural schematic diagram of the vacuum upper mold and the vacuum lower mold of the sausage fresh-keeping packaging machine in Example 2.

[0030] Figure 4 yes Figure 3 A magnified partial view of point A in the middle.

[0031] Description of reference numerals:

[0032] 1. Vacuum upper mold; 11. Upper sliding groove; 2. Vacuum lower mold; 21. Avoidance hole; 22. Lower sliding groove; 3. Tensioning mechanism; 31. Positioning assembly; 311. Positioning pin; 312. Sliding needle seat; 3121. Positioning hole; 3122. Gasket; 313. Upper rebound reset member; 314. Magnet; 315. Lower slider; 3151. Positioning pin hole; 3152. Ejector pin; 3153. Vertical compression spring; 3154. Threaded hole; 3155. Set screw; 316. Lower rebound reset member. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] Example 1

[0035] The present application embodiment discloses a sausage fresh-keeping packaging machine. Figure 1 and Figure 2 The sausage fresh-keeping packaging machine includes a vacuum upper mold 1, a vacuum lower mold 2 and a tensioning mechanism 3. The vacuum upper mold 1 and the vacuum lower mold 2 together serve as a vacuum packaging device of the sausage fresh-keeping packaging machine. The vacuum upper mold 1 and the vacuum lower mold 2 together vacuum the upper and lower layers of plastic used to package the sausage, and seal the two layers of packaging film around the sausage; the tensioning mechanism 3 is used to apply tensioning force to the sealing part between the two layers of packaging film to reduce the shrinkage of the packaging film after sealing.

[0036] In this embodiment, the vacuum packaging device can be used as the main structure of the sausage fresh-keeping packaging equipment or can be used together with other functional components to form a sausage fresh-keeping packaging production line.

[0037] Reference Figure 1The tensioning mechanism 3 includes two relatively arranged positioning components 31, and the two positioning components 31 are respectively located at two opposite sides of the vacuum upper mold 1. The positioning component 31 includes a positioning pin 311, a sliding needle seat 312 and an upper rebound reset member 313. The sliding needle seat 312 is slidably connected to the vacuum upper mold 1. The sliding direction of the sliding needle seat 312 is consistent with the arrangement direction between the two positioning components 31. The positioning pin 311 is fixedly arranged on the lower surface of the sliding needle seat 312. The positioning pins 311 on the two sliding needle seats 312 are used to puncture the two side edges of the cling film roll respectively. The vacuum lower mold 2 is provided with an avoidance hole 21 for avoiding the positioning pin 311. The avoidance hole 21 is a long hole, and the length direction of the avoidance hole 21 is consistent with the sliding direction of the sliding needle seat 312.

[0038] The number of positioning pins 311 of each positioning component 31 can be set to multiple as needed, the number and position of the avoidance holes 21 are adapted to the positioning pins 311 , and the arrangement direction of the positioning pins 311 of the same positioning component 31 is perpendicular to the sliding direction of the sliding needle seat 312 .

[0039] Reference Figure 1 The upper rebound reset member 313 is a horizontally arranged compression spring, and the upper rebound reset member 313 is used to prevent the two sliding needle seats 312 from moving closer to each other. The vacuum upper mold 1 is provided with an upper sliding groove 11 for accommodating the sliding needle seat 312 and the upper rebound reset member 313, and the notch of the upper sliding groove 11 faces downward. The vacuum upper mold 1 is slidably connected with the sliding needle seat 312 through the upper sliding groove 11. A magnet 314 is embedded on the upper surface of the sliding needle seat 312. There is a magnetic attraction between the magnet 314 and the bottom of the upper sliding groove 11. The sliding needle seat 312 is attached to the vacuum upper mold 1 through the magnetic attraction between the magnet 314 and the vacuum upper mold 1.

[0040] Reference Figure 1 The sliding needle seat 312 is provided with a positioning hole 3121 for avoiding the upper rebound reset member 313, and a plurality of gaskets 3122 are provided between the bottom of the positioning hole 3121 and the upper rebound reset member 313. By changing the thickness and number of the gaskets 3122, the pre-pressure of the upper rebound reset member 313 can be changed, thereby changing the tensioning force of the tensioning mechanism 3.

[0041] The implementation principle of a sausage fresh-keeping packaging machine in an embodiment of the present application is as follows: when packaging sausages, the sausages and the packaging film move between the vacuum upper mold 1 and the vacuum lower mold 2, the vacuum lower mold 2 moves downward close to the packaging film and the sausages, and the positioning pins 311 of the two positioning components 31 pierce the side edges of the packaging film. As the vacuum upper mold 1 and the vacuum lower mold 2 vacuum-pack the sausages, the packaging film shrinks and holds the sausages tightly. During this process, the packaging film drives the two positioning components 31 to approach each other. When the two positioning components 31 approach each other, the upper rebound reset component 313 generates a reverse tensioning force on the shrinkage and deformation of the packaging film, which is beneficial to controlling the shrinkage and deformation amplitude of the packaging film, making the packaging of the sausages tighter, and ensuring the vacuum degree of the sausages after packaging.

[0042] Example 2

[0043] Reference Figure 3 and Figure 4 , the difference between this embodiment and the embodiment is that the vacuum lower mold 2 in this embodiment is not provided with the avoidance hole 21. The positioning assembly 31 in this embodiment also includes a lower slider 315 and a lower rebound reset member 316. The vacuum lower mold 2 is provided with a lower sliding groove 22. The lower slider 315 is slidably connected with the lower sliding groove 22. The sliding direction of the lower slider 315 is consistent with the sliding direction of the sliding needle seat 312. The lower slider 315 is provided with a positioning pin hole 3151 for avoiding the positioning pin 311; the lower rebound reset member is a horizontally arranged compression spring, and the upper rebound reset member 313 is used to prevent the two sliding needle seats 312 from moving closer to each other.

[0044] Reference Figure 4 The lower slider 315 is provided with a pin 3152 and a vertical compression spring 3153. The pin 3152 and the vertical compression spring 3153 are located in the positioning pin hole 3151. The upper end of the pin 3152 is lower than the upper end of the positioning pin hole 3151. The vertical compression spring 3153 is located below the pin 3152. The maximum compression amount of the vertical compression spring 3153 is greater than the matching length between the positioning pin 311 and the positioning pin hole 3151. The lower end of the lower slider 315 is provided with a threaded hole 3154. The threaded hole 3154 is connected to the positioning pin hole 3151. The lower slider 315 is connected with a set screw 3155 through the threaded hole 3154. The lower end of the vertical compression spring 3153 abuts against the set screw 3155.

[0045] After the positioning pin 311 pierces the packaging film, it is inserted into the positioning pin hole 3151, and the ejector pin 3152 retreats downward to avoid the positioning pin 311. The lower end of the positioning pin 311 is positioned by the positioning pin hole 3151, so that both the upper and lower ends of the positioning pin 311 are strongly constrained, so that the positioning pin 311 can better withstand the reverse pulling force from the packaging film. The lower slider 315 can move with the movement of the positioning pin 311. When the positioning pin 311 leaves the positioning hole, it can be reset under the elastic force of the upper rebound reset member 313; at the same time, it can be reset under the elastic force of the lower rebound reset member 316 when it slides down.

[0046] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sausage fresh-keeping packaging machine, characterized in that: The invention comprises a vacuum upper mould (1), a vacuum lower mould (2) and a tensioning mechanism (3), wherein the tensioning mechanism (3) comprises two positioning components (31) arranged opposite to each other, wherein the two positioning components (31) are respectively located at two opposite sides of the vacuum upper mould (1), wherein the positioning components (31) comprise a positioning pin (311), a sliding pin seat (312) and an upper rebound reset member (313), wherein the positioning pin (311) is fixedly arranged on the lower surface of the sliding pin seat (312), wherein the positioning pins (311) on the two sliding pin seats (312) are used to respectively correspond to puncture the two side edges of the cling film roll, wherein the sliding pin seat (312) is slidably connected to the vacuum upper mould (1), wherein the sliding direction of the sliding pin seat (312) is consistent with the arrangement direction between the two positioning components (31), and the upper rebound reset member (313) is used to prevent the two sliding pin seats (312) from moving closer to each other.

2. The sausage fresh-keeping packaging machine according to claim 1, characterized in that: The sliding needle seat (312) is provided with a magnet (314), and there is a magnetic attraction between the magnet (314) and the vacuum upper mold (1), and the sliding needle seat (312) is attached to the vacuum upper mold (1) through the magnetic attraction between the magnet (314) and the vacuum upper mold (1).

3. The sausage fresh-keeping packaging machine according to claim 1, characterized in that: The upper rebound reset member (313) is a horizontally arranged compression spring, and the sliding needle seat (312) is provided with a positioning hole (3121) for avoiding the upper rebound reset member (313).

4. The sausage fresh-keeping packaging machine according to claim 3, characterized in that: A plurality of gaskets (3122) are provided between the bottom of the positioning hole (3121) and the upper rebound reset member (313).

5. The sausage fresh-keeping packaging machine according to claim 1, characterized in that: The vacuum lower mold (2) is provided with an avoidance hole (21) for avoiding the positioning pin (311); the avoidance hole (21) is a long hole, and the length direction of the avoidance hole (21) is consistent with the sliding direction of the sliding needle seat (312).

6. The sausage fresh-keeping packaging machine according to claim 1, characterized in that: The positioning assembly (31) further comprises a lower slider (315) and a lower rebound reset member (316); the lower slider (315) is slidably connected to the vacuum lower mold (2); the sliding direction of the lower slider (315) is consistent with the sliding direction of the sliding needle seat (312); the lower slider (315) is provided with a positioning pin hole (3151) for avoiding the positioning pin (311); the upper rebound reset member (313) is used to prevent the two sliding needle seats (312) from moving closer to each other.

7. The sausage fresh-keeping packaging machine according to claim 6, characterized in that: The lower slider (315) is provided with a ejector pin (3152) and a vertical compression spring (3153), the ejector pin (3152) and the vertical compression spring (3153) are located in the positioning pin hole (3151), the upper end of the ejector pin (3152) is lower than the upper end of the positioning pin hole (3151), the vertical compression spring (3153) is located below the ejector pin (3152), and the maximum compression amount of the vertical compression spring (3153) is greater than the matching length between the positioning pin (311) and the positioning pin hole (3151).

8. The sausage fresh-keeping packaging machine according to claim 7, characterized in that: A threaded hole (3154) is provided at the lower end of the lower slider (315), the threaded hole (3154) is communicated with the positioning pin hole (3151), the lower slider (315) is connected to a set screw (3155) via the threaded hole (3154), and the lower end of the vertical compression spring (3153) abuts against the set screw (3155).

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