CN118706608A - A pressure testing device for canned food production - Google Patents

Abstract

The present invention discloses a pressure testing device for canned food production, comprising: a frame, both sides of the frame are fixedly connected with extension plates, the side of the frame away from the extension plates is fixedly connected with a support plate, and the bottom of the frame is fixedly connected with a bottom plate; a pressure device, the pressure device is used to squeeze the can to be tested; a temperature changing device, the temperature changing device is used to adjust the temperature of the can to be tested; the support plates are provided with two groups, the two groups of support plates are symmetrically distributed on both sides of the frame, and the outer side of the pressure device is fixedly connected to the side of the support plate. The present invention relates to the technical field of canned food production. The pressure testing device for canned food production can drive an arc-shaped extrusion rod to squeeze the outer wall of the can, and can squeeze the top of the can as well as the outer side of the can, so as to facilitate the detection of the tolerance of the can from different positions.

Description

A pressure testing device for canned food production

Technical Field

The invention relates to the technical field of canned food production, in particular to a pressure testing device for canned food production.

Background Art

Food canning is a method of preserving food by putting it into tinplate cans, glass cans or other packaging containers after certain treatment, sealing and sterilizing it, so that the food in the can is isolated from the outside world and no longer contaminated by microorganisms. At the same time, most of the microorganisms in the can are killed and the enzymes are inactivated, thereby eliminating the main cause of food spoilage and storing the food for a long time at room temperature. This kind of food that is sealed in a container and sterilized and can be stored for a long time at room temperature is called canned food, that is, canned food, also referred to as canned food. As one of the fast-moving consumer goods, canned food is becoming a favorite food of people day by day. Its delicious taste and attractive appearance make it difficult for people to resist its temptation. Canned food is usually an opaque metal can. In order to ensure the quality of canned food during transportation, after the canned food is produced, it is necessary to sample the batch of products for pressure testing to see if it is qualified.

When performing pressure testing on a tank body, the existing device can only apply pressure to the tank body from the top of the tank body, but cannot squeeze the tank body from the outside of the tank body, which is inconvenient for testing the tolerance of the tank body from different positions.

Summary of the invention

In order to solve the above technical problems, the present invention provides: a pressure testing device for canned food production, comprising:

A frame, wherein both sides of the frame are fixedly connected to extension plates, a side of the frame away from the extension plates is fixedly connected to a support plate, and the bottom of the frame is fixedly connected to a bottom plate;

A pressure-applying device, which is used to squeeze the can body to be inspected;

A temperature changing device, which is used to adjust the temperature of the tank to be tested;

The support plates are provided in two groups, and the two groups of support plates are symmetrically distributed on both sides of the frame, the outer side of the pressure device is fixedly connected to the side of the support plate, and the outer side of the temperature changing device is fixedly connected to the inner wall of the frame through the bracket;

Wherein, the pressure applying device comprises:

A pressing plate, a first electric push rod is fixedly connected to the top of the pressing plate, and an end of the first electric push rod away from the pressing plate is fixedly connected to the top plate;

The squeezing device is used to squeeze the outer wall of the tank body to be inspected. The first electric push rod pushes the pressing plate to move. When the pressing plate moves downward, it gradually approaches the tank body placed on the load-bearing plate. As the pressing plate continues to move, the pressing plate can squeeze the top of the tank body. By applying pressure to the top of the tank body by the pressing plate, the tolerance of the tank body can be observed and detected. Then the second electric push rod is turned on, and the moving plate is pushed by the second electric push rod. The moving plate can drive the arc-shaped squeezing rod to squeeze the outer wall of the tank body. It can squeeze the top of the tank body and the outside of the tank body at the same time, which is convenient for detecting the tolerance of the tank body from different positions and effectively expanding the detection range.

Preferably, both ends of the top plate are fixedly connected to the side of the support plate, the outer side of the first electric push rod is fixedly connected to the side of the top plate through a bracket, the pressing plate is arranged directly above the frame, and the outer side of the extrusion device is fixedly connected to the top of the bottom plate through a bracket.

Preferably, the extrusion device includes a driving motor, the output end of the driving motor is fixedly connected to a rotating column, the end of the rotating column away from the driving motor is fixedly connected to a rotating disk, a groove is provided on the rotating disk, the inner wall of the groove is slidably connected to a moving plate through a slider, the side of the moving plate away from the groove is fixedly connected to an arc-shaped extrusion rod, one side of the moving plate is fixedly connected to a second electric push rod, the side of the rotating disk away from the rotating column is rotatably connected to a load-bearing plate through a bearing, the driving motor drives the rotating column to rotate, the rotating column drives the rotating disk to rotate, and the rotating disk drives the second electric push rod to move through the bracket. The arc-shaped extrusion rod is driven to rotate by the second electric push rod. When the arc-shaped extrusion rod rotates, it presses the tank body against the load-bearing plate through the pressing plate to prevent the tank body from rotating. When the arc-shaped extrusion rod rotates to the specified position, the pressing plate is removed from the top of the tank body by the first electric push rod. As the arc-shaped extrusion rod rotates, the position of the arc-shaped extrusion rod for squeezing the tank body can be changed. When squeezing the outer wall of the can, the tank body can be squeezed from different positions on the outside of the tank body, thereby improving the accuracy of detection. In addition, the arc-shaped extrusion rod is driven to move when the second electric push rod is extended or shortened, so that tanks with different diameters can be squeezed. The adaptability of the device is relatively high.

Preferably, the grooves are provided in a plurality of groups, and the plurality of groups of the grooves are evenly distributed on the rotating disk, and the outer side of the second electric push rod is fixedly connected to the side surface of the rotating disk via a bracket.

Preferably, the outer side of the driving motor is fixedly connected to the top of the base plate through a bracket, the load-bearing plate is arranged directly below the pressing plate, and the movable plate and the arc-shaped extrusion rod are provided in multiple groups and correspond one-to-one to the grooves.

Preferably, the temperature-changing device comprises a heat-insulating sleeve, an arc-shaped opening is provided at the center of the outer side of the heat-insulating sleeve, an annular electric slide rail is fixedly connected to the inner wall of the heat-insulating sleeve near the arc-shaped opening, a movable sleeve is slidably connected to the interior of the annular electric slide rail via an electric slider, a ventilation pipe is passed through and fixedly connected to the inner wall of the movable sleeve, one end of the ventilation pipe is connected to an exhaust frame, an exhaust port is provided on one side of the exhaust frame, an annular sealing plate is passed through and fixedly connected to the end of the ventilation pipe away from the exhaust frame, and the outer side of the annular sealing plate is passed through The bearing is rotatably connected to an annular air pipe, and the two sides of the annular air pipe are respectively connected to a hot air blower and an air conditioner through air pipes. The hot air blower is turned on to discharge the heated gas into the air pipe, and then discharged into the annular air pipe through the air pipe. The gas enters the exhaust frame through the vent pipe, and finally blows to the surface of the tank through the exhaust port to heat the surface of the tank. The air conditioner can also be turned on to blow the cooled gas to the surface of the tank to cool the surface of the tank. Subsequently, a pressure device is used to apply pressure to the heated or cooled tank, which can simulate the changes in the tolerance of the tank at different temperatures.

Preferably, the outer side of the insulation sleeve is fixedly connected to the inner wall of the frame through a bracket, and two groups of arc-shaped openings are provided, and the two groups of arc-shaped openings are symmetrically distributed on the outer side of the insulation sleeve. Two groups of annular electric slide rails are provided, and the two groups of annular electric slide rails are symmetrically distributed on both sides of the arc-shaped opening. There are multiple groups of exhaust ports, and the electric slider inside the annular electric slide rail drives the movable sleeve to move along the arc-shaped opening, and the movable sleeve drives the ventilation pipe to move, and the ventilation pipe drives the annular sealing plate to move on the side of the annular air pipe. At the same time, the ventilation pipe drives the exhaust frame to move around the inner wall of the insulation sleeve, and the exhaust frame can drive the exhaust port to move, so as to change the outlet position of the exhaust port, and transfer hot air or cold air to different positions of the tank body, so as to change the overall temperature of the tank, and make the tank body cool and heated more evenly.

Preferably, two groups of movable sleeves are provided, both ends of the movable sleeves are penetrated by arc-shaped openings, one side of the annular air pipe is provided with an annular opening adapted to the annular sealing plate, and one end of the ventilation pipe away from the exhaust frame extends into the annular air pipe and is connected to the annular air pipe.

Preferably, the bottoms of the hot air blower and the cold air blower are fixedly connected to the top of the extension plate, and the hot air blower and the cold air blower are symmetrically distributed.

The present invention provides a pressure testing device for canned food production, which has the following beneficial effects:

1. A pressure testing device for canned food production, through the installation of a pressure device, a first electric push rod pushes the pressing plate to move, and the pressing plate gradually approaches the can body placed on the load-bearing plate when moving downward, and as the pressing plate continues to move, the pressing plate can squeeze the top of the can body, and by applying pressure to the top of the can body by the pressing plate, the tolerance of the can body can be observed and detected, and then the second electric push rod is turned on, and the moving plate is pushed by the second electric push rod, and the moving plate can drive the arc-shaped squeezing rod to squeeze the outer wall of the can body, which can squeeze the top of the can body and the outside of the can body, so as to facilitate the detection of the tolerance of the can body from different positions and effectively expand the detection range.

2. This kind of pressure testing device for canned food production, through the installation of the extrusion device, the driving motor drives the rotating column to rotate, the rotating column drives the rotating disk to rotate, the rotating disk drives the second electric push rod to move through the bracket, and the arc extrusion rod is driven to rotate by the second electric push rod. When the arc extrusion rod rotates, it presses the can body against the load-bearing plate through the pressing plate to prevent the can body from rotating therewith. When the arc extrusion rod rotates to the specified position, the pressing plate is removed from the top of the can body by the first electric push rod. As the arc extrusion rod rotates, the position of the arc extrusion rod squeezing the can body can be changed. When squeezing the outer wall of the can, the can body can be squeezed from different positions on the outside of the can body, thereby improving the accuracy of the detection. In addition, the second electric push rod drives the arc extrusion rod to move when it is extended and shortened, so that cans of different diameters can be squeezed. The adaptability of the device is relatively high.

3. This pressure testing device for canned food production, through the installation of a temperature variable device, turns on the hot air blower, discharges the heated gas into the gas pipe, and then discharges it into the annular gas pipe through the gas pipe. The gas enters the exhaust frame through the vent pipe, and finally blows to the surface of the tank through the exhaust port to heat the surface of the tank. The air conditioner can also be turned on to blow the cooled gas to the surface of the tank to cool the surface of the tank. Then, the pressure device is used to apply pressure to the heated or cooled tank, which can simulate the changes in the tolerance of the tank at different temperatures.

4. A pressure testing device for canned food production, through the installation of an annular electric slide rail and an exhaust frame, the electric slider inside the annular electric slide rail drives the movable sleeve to move along the arc-shaped mouth, the movable sleeve drives the vent pipe to move, the vent pipe drives the annular sealing plate to move on the side of the annular vent pipe, and at the same time the vent pipe drives the exhaust frame to move around the inner wall of the insulation sleeve, the exhaust frame can drive the exhaust port to move, and the exhaust port can be changed. The exhaust position, transfer hot air or cold air to different positions of the tank body, change the overall temperature of the tank, and make the tank body cool and heated more evenly.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a pressure testing device for canned food production according to the present invention;

FIG2 is a structural disassembly diagram of the top plate of the present invention;

FIG3 is a schematic structural diagram of a frame of the present invention;

FIG4 is a schematic structural diagram of a bottom plate of the present invention;

FIG5 is a schematic structural diagram of a rotating disk of the present invention;

FIG6 is a schematic structural diagram of a load-bearing plate according to the present invention;

FIG7 is a schematic diagram of the structure of the exhaust frame of the present invention;

FIG8 is a schematic structural diagram of the heat-insulating sleeve of the present invention.

In the figure: 1. frame; 2. extension plate; 3. support plate; 4. bottom plate; 5. pressure device; 51. pressing plate; 52. first electric push rod; 53. top plate; 54. extrusion device; 541. driving motor; 542. rotating column; 543. rotating disk; 544. groove; 545. moving plate; 546. arc-shaped extrusion rod; 547. second electric push rod; 548. load-bearing plate; 6. temperature-changing device; 61. insulation sleeve; 62. arc-shaped mouth; 63. annular electric slide rail; 64. movable sleeve; 65. ventilation pipe; 66. exhaust frame; 67. exhaust port; 68. annular sealing plate; 69. annular air pipe; 610. air supply pipe; 611. hot air blower; 612. air conditioner.

DETAILED DESCRIPTION

The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

In the first embodiment, please refer to FIG. 1 to FIG. 6 , the present invention provides a technical solution: a pressure testing device for canned food production, comprising:

A frame body 1, both sides of the frame body 1 are fixedly connected with extension plates 2, a side of the frame body 1 away from the extension plates 2 is fixedly connected with a support plate 3, and the bottom of the frame body 1 is fixedly connected with a bottom plate 4;

A pressure device 5, the pressure device 5 is used to squeeze the can body to be inspected;

A temperature changing device 6, which is used to adjust the temperature of the tank to be tested;

Two groups of support plates 3 are provided, and the two groups of support plates 3 are symmetrically distributed on both sides of the frame 1. The outer side of the pressure device 5 is fixedly connected to the side of the support plate 3, and the outer side of the temperature changing device 6 is fixedly connected to the inner wall of the frame 1 through the bracket;

Wherein, the pressure applying device 5 comprises:

A pressing plate 51, a first electric push rod 52 is fixedly connected to the top of the pressing plate 51, and a top plate 53 is fixedly connected to one end of the first electric push rod 52 away from the pressing plate 51;

The squeezing device 54 is used to squeeze the outer wall of the can body to be inspected.

Both ends of the top plate 53 are fixedly connected to the side of the support plate 3, the outer side of the first electric push rod 52 is fixedly connected to the side of the top plate 53 through a bracket, the pressing plate 51 is arranged directly above the frame 1, and the outer side of the extrusion device 54 is fixedly connected to the top of the bottom plate 4 through a bracket.

The extrusion device 54 includes a driving motor 541, the output end of the driving motor 541 is fixedly connected to a rotating column 542, the end of the rotating column 542 away from the driving motor 541 is fixedly connected to a rotating disk 543, a groove 544 is opened on the rotating disk 543, the inner wall of the groove 544 is slidably connected to a moving plate 545 through a slider, the side of the moving plate 545 away from the groove 544 is fixedly connected to an arc-shaped extrusion rod 546, one side of the moving plate 545 is fixedly connected to a second electric push rod 547, and the side of the rotating disk 543 away from the rotating column 542 is rotatably connected to a load-bearing plate 548 through a bearing.

There are multiple groups of grooves 544 , which are evenly distributed on the rotating disk 543 . The outer side of the second electric push rod 547 is fixedly connected to the side of the rotating disk 543 through a bracket.

The outer side of the driving motor 541 is fixedly connected to the top of the bottom plate 4 through a bracket, the load-bearing plate 548 is arranged directly below the pressing plate 51, and the moving plates 545 and the arc-shaped squeezing rods 546 are provided in multiple groups and correspond one-to-one to the grooves 544.

During use, the operator places the tank body on the load-bearing plate 548, and then turns on the first electric push rod 52. The pressing plate 51 is pushed to move by the first electric push rod 52. When the pressing plate 51 moves downward, it gradually approaches the tank body placed on the load-bearing plate 548. As the pressing plate 51 continues to move, the pressing plate 51 can squeeze the top of the tank body. By applying pressure to the top of the tank body by the pressing plate 51, the tolerance of the tank body can be observed and detected. Then, the second electric push rod 547 is turned on, and the moving plate 545 is pushed by the second electric push rod 547. The moving plate 545 can drive the arc-shaped squeezing rod 546 to squeeze the outer wall of the tank body, which can squeeze the top of the tank body and the outside of the tank body, so as to facilitate the detection of the tolerance of the tank body from different positions and effectively expand the detection range.

The driving motor 541 is turned on, and the driving motor 541 drives the rotating column 542 to rotate, and the rotating column 542 drives the rotating disk 543 to rotate. The rotating disk 543 drives the second electric push rod 547 to move through the bracket, and the arc extrusion rod 546 is driven to rotate by the second electric push rod 547. When the arc extrusion rod 546 rotates, it presses the can body against the load-bearing plate 548 through the pressing plate 51 to prevent the can body from rotating. When the arc extrusion rod 546 rotates to the specified position, the pressing plate 51 is removed from the top of the can body by the first electric push rod 52. As the arc extrusion rod 546 rotates, the position of the arc extrusion rod 546 to squeeze the can body can be changed. When squeezing the outer wall of the can, the can body can be squeezed from different positions on the outside of the can body, thereby improving the accuracy of detection. In addition, when the second electric push rod 547 is extended and shortened, it drives the arc extrusion rod 546 to move, so that cans with different diameters can be squeezed. The adaptability of the device is relatively high.

The second embodiment, please refer to Figures 1 to 8, the present invention provides a technical solution: on the basis of the first embodiment, the temperature changing device 6 includes a heat preservation sleeve 61, the outer side of the heat preservation sleeve 61 is provided with an arc-shaped opening 62 at the center position, the inner wall of the heat preservation sleeve 61 is fixedly connected with an annular electric slide rail 63 near the arc-shaped opening 62, the inner part of the annular electric slide rail 63 is slidably connected with a movable sleeve 64 through an electric slider, the inner wall of the movable sleeve 64 is penetrated and fixedly connected with a vent pipe 65, one end of the vent pipe 65 is connected with an exhaust frame 66, one side of the exhaust frame 66 is provided with an exhaust port 67, the end of the vent pipe 65 away from the exhaust frame 66 is penetrated and fixedly connected with an annular sealing plate 68, the outer side of the annular sealing plate 68 is rotatably connected with an annular air pipe 69 through a bearing, and the two sides of the annular air pipe 69 are respectively connected with a hot air blower 611 and an air conditioner 612 through air supply pipes 610.

The outer side of the insulation sleeve 61 is fixedly connected to the inner wall of the frame 1 through a bracket, two groups of arc-shaped openings 62 are provided, and the two groups of arc-shaped openings 62 are symmetrically distributed on the outer side of the insulation sleeve 61, two groups of annular electric slide rails 63 are provided, and the two groups of annular electric slide rails 63 are symmetrically distributed on both sides of the arc-shaped opening 62, and multiple groups of exhaust ports 67 are provided.

Two groups of movable sleeves 64 are provided, both ends of the movable sleeves 64 pass through the arc-shaped opening 62, one side of the annular air pipe 69 is provided with an annular opening adapted to the annular sealing plate 68, and one end of the ventilation pipe 65 away from the exhaust frame 66 extends into the annular air pipe 69 and is connected to the annular air pipe 69.

The bottoms of the hot air blower 611 and the cold air blower 612 are fixedly connected to the top of the extension plate 2, and the hot air blower 611 and the cold air blower 612 are symmetrically distributed.

During use, when the tank body is being tested, the hot air blower 611 is turned on to discharge the heated gas into the gas supply pipe 610, and then discharged into the annular air pipe 69 through the gas supply pipe 610. The gas enters the exhaust frame 66 through the vent pipe 65, and is finally blown to the surface of the tank body through the exhaust port 67 to heat the surface of the tank body. The air conditioner 612 can also be turned on to blow the cooled gas to the surface of the tank body to cool the surface of the tank body. Subsequently, the pressure device 5 is used to apply pressure to the heated or cooled tank body, thereby simulating the changes in the tolerance of the tank body at different temperatures.

Open the annular electric slide rail 63, and the electric slider inside the annular electric slide rail 63 drives the movable sleeve 64 to move along the arc-shaped opening 62, and the movable sleeve 64 drives the vent pipe 65 to move, and the vent pipe 65 drives the annular sealing plate 68 to move on the side of the annular air pipe 69. At the same time, the vent pipe 65 drives the exhaust frame 66 to move around the inner wall of the insulation sleeve 61, and the exhaust frame 66 can drive the exhaust port 67 to move, so as to change the outlet position of the exhaust port 67, transfer hot air or cold air to different positions of the tank body, change the overall temperature of the tank, and make the tank body cool and heated more evenly.

Working principle: The operator places the tank body on the load-bearing plate 548, then turns on the first electric push rod 52, and pushes the pressing plate 51 to move through the first electric push rod 52. When the pressing plate 51 moves downward, it gradually approaches the tank body placed on the load-bearing plate 548. As the pressing plate 51 continues to move, the pressing plate 51 can squeeze the top of the tank body. By applying pressure to the top of the tank body by the pressing plate 51, the tolerance of the tank body can be observed and tested. Then, the second electric push rod 547 is turned on, and the moving plate is pushed through the second electric push rod 547. 545, the movable plate 545 can drive the arc-shaped extrusion rod 546 to squeeze the outer wall of the tank, turn on the driving motor 541, and drive the rotating column 542 to rotate through the driving motor 541, and the rotating column 542 drives the rotating disk 543 to rotate, and the rotating disk 543 drives the second electric push rod 547 to move through the bracket, and drives the arc-shaped extrusion rod 546 to rotate through the second electric push rod 547. When the arc-shaped extrusion rod 546 rotates, the tank body is pressed against the load-bearing plate 548 through the pressing plate 51 to prevent the tank body from rotating. When the arc-shaped extrusion rod 546 rotates, After moving to the designated position, the pressing plate 51 is removed from the top of the tank body by the first electric push rod 52. When the tank body is being tested, the hot air blower 611 is turned on to discharge the heated gas into the gas delivery pipe 610, and then discharged into the annular gas pipe 69 through the gas delivery pipe 610. The gas enters the exhaust frame 66 through the vent pipe 65, and finally blows to the surface of the tank body through the exhaust port 67 to heat the surface of the tank body. The air cooler 612 can also be turned on to blow the cooled gas to the surface of the tank body to cool the surface of the tank body, and then the pressure device is used to apply the gas. Device 5 applies pressure to the heated or cooled tank body, opens the annular electric slide rail 63, and drives the movable sleeve 64 to move along the arc-shaped opening 62 through the electric slider inside the annular electric slide rail 63. The movable sleeve 64 drives the vent pipe 65 to move, and the vent pipe 65 drives the annular sealing plate 68 to move on the side of the annular air pipe 69. At the same time, the vent pipe 65 drives the exhaust frame 66 to move around the inner wall of the insulation sleeve 61. The exhaust frame 66 can drive the exhaust port 67 to move, thereby changing the exhaust position of the exhaust port 67 and transferring hot air or cold air to different positions of the tank body.

Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims (9)

1. A pressure testing device for the production of canned food, comprising:

the support comprises a support body (1), wherein extension plates (2) are fixedly connected to two sides of the support body (1), a support plate (3) is fixedly connected to one side, away from the extension plates (2), of the support body (1), and a bottom plate (4) is fixedly connected to the bottom of the support body (1);

the pressing device (5) is used for pressing the tank body to be detected;

the temperature changing device (6) is used for adjusting the temperature of the tank body to be detected;

the two groups of the support plates (3) are symmetrically distributed on two sides of the frame body (1), the outer side of the pressing device (5) is fixedly connected with the side face of the support plate (3), and the outer side of the temperature changing device (6) is fixedly connected with the inner wall of the frame body (1) through a bracket;

wherein the pressing device (5) comprises:

the device comprises a pressing plate (51), wherein a first electric push rod (52) is fixedly connected to the top of the pressing plate (51), and a top plate (53) is fixedly connected to one end, away from the pressing plate (51), of the first electric push rod (52);

And the extrusion device (54) is used for extruding the outer wall of the tank body to be detected.

2. A pressure testing device for the production of canned food according to claim 1, characterized in that: both ends of roof (53) all with the side fixed connection of backup pad (3), the outside of first electric putter (52) is through the side fixed connection of support and roof (53), press plate (51) set up directly over support body (1), the top fixed connection of extrusion device (54) outside through support and bottom plate (4).

3. A pressure testing device for the production of canned food according to claim 1, characterized in that: extrusion device (54) are including driving motor (541), the output fixedly connected with column spinner (542) of driving motor (541), one end fixedly connected with rotary disk (543) that driving motor (541) was kept away from to column spinner (542), set up fluted (544) on rotary disk (543), the inner wall of recess (544) is through slider sliding connection movable plate (545), one side fixedly connected with arc extrusion pole (546) that recess (544) was kept away from to movable plate (545), one side fixedly connected with second electric putter (547) of movable plate (545), one side that column spinner (542) was kept away from to rotary disk (543) is connected with bearing plate (548) through the bearing rotation.

4. A pressure testing device for the production of canned food according to claim 3, characterized in that: the grooves (544) are formed in multiple groups, the grooves (544) are uniformly distributed on the rotating disc (543), and the outer side of the second electric push rod (547) is fixedly connected with the side face of the rotating disc (543) through a support.

5. A pressure testing device for the production of canned food according to claim 3, characterized in that: the outside of driving motor (541) is through the top fixed connection of support and bottom plate (4), bearing plate (548) set up under pressing plate (51), movable plate (545) and arc extrusion pole (546) all are provided with the multiunit and with recess (544) one-to-one.

6. A pressure testing device for the production of canned food according to claim 1, characterized in that: the temperature changing device (6) comprises a heat preservation sleeve (61), an arc-shaped opening (62) is formed in the outer side of the heat preservation sleeve (61) at the center, an annular electric sliding rail (63) is fixedly connected to the inner wall of the heat preservation sleeve (61) close to the arc-shaped opening (62), a movable sleeve (64) is slidably connected to the inner wall of the annular electric sliding rail (63) through an electric sliding block, a vent pipe (65) is fixedly connected to the inner wall of the movable sleeve (64) in a penetrating mode, one end of the vent pipe (65) is communicated with an exhaust frame (66), an exhaust port (67) is formed in one side of the exhaust frame (66), one end, far away from the exhaust frame (66), of the vent pipe (65) is penetrated and fixedly connected with an annular sealing plate (68), the outer side of the annular sealing plate (68) is rotatably connected with an annular air pipe (69) through a bearing, and two sides of the annular air pipe (69) are respectively communicated with a hot air blower (611) and a cold air conditioner (612) through the air conveying pipe (610).

7. The pressure testing device for producing canned food of claim 6, wherein: the outside of heat preservation sleeve (61) is through the inner wall fixed connection of support and support body (1), two sets of arc mouth (62) have been seted up, two sets of arc mouth (62) symmetric distribution is in the outside of heat preservation sleeve (61), annular electronic slide rail (63) are provided with two sets of, two sets of annular electronic slide rail (63) symmetric distribution is in the both sides of arc mouth (62), multiunit has been seted up in gas vent (67).

8. The pressure testing device for producing canned food of claim 6, wherein: the movable sleeve (64) is provided with two groups, the two ends of the movable sleeve (64) penetrate through the arc-shaped opening (62), an annular opening matched with the annular sealing plate (68) is formed in one side of the annular air pipe (69), and one end, far away from the exhaust frame (66), of the air pipe (65) extends into the annular air pipe (69) and is communicated with the annular air pipe (69).

9. The pressure testing device for producing canned food of claim 6, wherein: the bottoms of the air heater (611) and the air conditioner (612) are fixedly connected with the top of the extension plate (2), and the air heater (611) and the air conditioner (612) are symmetrically distributed.