A casing drying oven with an extrusion structure

Abstract

The present invention relates to the technical field of casing drying, and in particular to a casing drying box with an extrusion structure. It comprises a box body, a rectangular array of connectors fixedly connected to the box body, a spaced-apart fixing piece slidably connected to the connector, a drying tube fixedly connected to the spaced-apart fixing piece, and a support switching unit provided on the drying tube; the support switching unit comprises a first support airbag distributed in a circumferential array, the first support airbags distributed in a circumferential array are all provided on the drying tube, the drying tube is provided with a second support airbag distributed in a circumferential array, and the drying tube is fixed with a first air supply pipe and a second air supply pipe. The present invention switches the support of the casing by the first support airbag and the second support airbag, and while cooperating with the box body to dry the inner and outer sides of the casing at the same time, it prevents the contact position of the casing inner wall from remaining unchanged during the drying process, thereby improving the drying uniformity and reducing the probability of water vapor retention.

Description

Technical Field

[0001] The present invention relates to the technical field of sausage casing drying, in particular to a sausage casing drying box with an extrusion structure. Background Art

[0002] Casings, the wrapping material for sausages and other meat products, can be divided into two categories: natural and synthetic. Natural casings are made from the intestines of animals such as pigs, cattle, and sheep. They are processed into dry casings through processes such as mucosal stripping, deep cleaning, and dehydration.

[0003] In the existing technology, the casings are usually dried by washing the casings and then putting them on a cylindrical pipe with a gauze attached to the surface. The pipe with the casings is then placed on a rack for drying. However, during the existing drying process, the inner wall of the casing and the gauze on the pipe are always in a relatively static state. That is, the contact point between the inner wall of the casing and the gauze on the pipe requires a longer drying time, and it is more likely to accumulate water vapor generated by drying in other positions, resulting in slow drying of the contact surface and water vapor retention. Under long-term influence, there is even a risk of bacterial growth, which directly affects the sanitary safety level of the casings. Summary of the Invention

[0004] In order to overcome the above disadvantages, the present invention provides a casing drying box with an extrusion structure.

[0005] The technical solution is: a casing drying box with an extrusion structure, comprising a box body, an air inlet pipe and an air outlet pipe provided on the box body, a rectangular array of connectors fixedly connected to the box body, spaced-apart fixing members slidably connected to the connectors, the spaced-apart fixing members being commonly fixedly connected to a drying tube, and a support switching unit provided on the drying tube;

[0006] The support switching unit includes first support airbags distributed in a circumferential array, and the first support airbags distributed in the circumferential array are all arranged on the drying tube. The drying tube is provided with second support airbags distributed in a circumferential array, and the first support airbags distributed in the circumferential array and the second support airbags distributed in the circumferential array are staggered. The drying tube is fixed with a first air pipe and a second air pipe, and the first air pipe is communicated with the second support airbags distributed in the circumferential array, and the second air pipe is communicated with the first support airbags distributed in the circumferential array. The box is provided with a disassembly mechanism for disassembling the drying tube, and the box is provided with an extrusion mechanism for extruding the casing.

[0007] Preferably, the air inlet pipe is located above the air outlet pipe.

[0008] Preferably, the first support airbag and the second support airbag are both provided with exhaust holes distributed at intervals.

[0009] Preferably, the first support airbag and the second support airbag are both spiral-shaped.

[0010] Preferably, the disassembly mechanism includes fixed seats distributed in a rectangular array, the fixed seats distributed in a rectangular array are all fixedly connected to the box body, and the fixed seats distributed in a rectangular array correspond one-to-one to the drying tubes distributed in a rectangular array, the fixed seats slide and the rotating ring is connected to a sliding sleeve, the drying tube is fixed with a connecting piece, and the connecting piece is threadedly connected to the sliding sleeve.

[0011] Preferably, transfer cavities are provided at both ends of the drying tube, and the drying tube is provided with air inlets in a circumferential array and symmetrically distributed, and the air inlets distributed in the circumferential array are connected to the adjacent transfer cavities, and two pipes are provided on the drying tube, and the two pipes on the drying tube are respectively connected to the adjacent transfer cavities.

[0012] Preferably, the exhaust holes distributed at intervals on the first support airbag are located in the middle thereof, and the exhaust holes distributed at intervals on the second support airbag are located in the middle thereof.

[0013] Preferably, the extrusion mechanism includes a fixed rod, which is fixed in the box body, a lead screw is rotatably connected in the box body, the fixed rod is slidably connected to a sliding frame, the sliding frame is threadedly connected to the lead screw, the sliding frame is fixed with rings distributed in a rectangular array, the rings distributed in the rectangular array correspond one-to-one to the drying tubes distributed in the rectangular array, a connecting pipe group is fixed to the sliding frame, the connecting pipe group is fixed and connected with symmetrical diverter pieces distributed in a rectangular array, the diverter pieces pass through adjacent rings, the symmetrically distributed diverter pieces are rotatably connected together and connected with symmetrically distributed extrusion airbags, and the extrusion airbags are located in the rings.

[0014] Preferably, a flexible member is fixedly connected inside the collar, the flexible member and the extrusion airbag are squeezed against each other, and the diverter passes through the adjacent flexible member.

[0015] Preferably, mirror-image-distributed flow guides are fixedly connected to the drying tube, and a side of the connecting member close to an adjacent flow guide is configured as a conical surface.

[0016] Compared with the prior art, the present invention has the following advantages: the present invention switches the support of the casing by the first supporting airbag and the second supporting airbag, and while cooperating with the box to simultaneously dry the inner and outer sides of the casing, prevents the contact position of the inner wall of the casing from remaining unchanged during the drying process, thereby improving the drying uniformity and reducing the probability of water vapor retention; by uniformly expanding the extrusion airbag in the circumferential direction, the casing, the first supporting airbag and the flexible member are squeezed at the same time, so that the flow area of the spiral gas flow channel is reduced at the squeezed part, forming a throat structure. According to the Venturi effect, the gas flow velocity in the spiral flow channel increases when the restricted flow passes through the reduced flow cross-section. According to Bernoulli's principle, the increase in flow velocity is accompanied by a decrease in fluid pressure. In this way, the high-speed flow of the airflow at the throat enhances the convective heat exchange on the surface of the casing and accelerates water evaporation. At the same time, the low pressure at the throat can actively absorb moisture, reducing the probability of water vapor retention on the surface of the casing. The rotating flow of the spiral flow channel can enhance the shear force of the airflow in the throat, further destroying the steam layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a three-dimensional structural diagram of the internal structure of the box body of the present invention;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the box body and the connector of the present invention;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the first support airbag and the second support airbag of the present invention;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the connector and the fixing member of the present invention;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the drying tube and the first supporting airbag of the present invention;

[0023] Figure 7 Schematic diagram of the three-dimensional structure of the drying tube and the flow guide member of the present invention;

[0024] Figure 8 Schematic diagram of the three-dimensional structure of the fixed rod, the lead screw and the sliding frame of the present invention;

[0025] Figure 9 It is a sectional view of the three-dimensional structure of the extruded airbag and the flexible member of the present invention.

[0026] Among them: 1-box, 2-air inlet pipe, 3-air outlet pipe, 4-connector, 5-fixing part, 6-drying tube, 7-first supporting airbag, 8-second supporting airbag, 9-first air supply pipe, 10-second air supply pipe, 11-fixing seat, 12-sliding sleeve, 13-connecting part, 131-flow guide, 14-transfer chamber, 15-air inlet, 16-fixing rod, 17-screw, 18-sliding frame, 19-ring, 20-connecting pipe group, 21-diverter, 22-squeezing airbag, 23-flexible part. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to specific embodiments. It should be noted that, unless otherwise specified or limited, terms such as "disposed" and "connected" should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; or it may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific contexts.

[0028] Example 1

[0029] The present embodiment discloses a casing drying box with an extrusion structure, which is used to continuously switch the support position of the casing during drying to achieve uniform drying.

[0030] like Figures 1-6As shown, the drying box includes a box body 1, and two symmetrically distributed sealed doors are provided on the front side of the box body 1, and glass is provided on the sealed doors to facilitate observation of the drying condition of the casings inside the box body 1. An air inlet pipe 2 and an air outlet pipe 3 are provided on the box body 1, and the air inlet pipe 2 is located above the air outlet pipe 3. In this way, when the box body 1 starts working, the hot air gradually and evenly fills the box body 1 from top to bottom to ensure the drying efficiency. A gas distribution module is provided on the side of the box body 1 near the air inlet pipe 2 (the gas distribution module is a prior art and is used to evenly disperse the hot air, which is not shown in the figure). The air inlet pipe 2 is connected to the gas distribution module, the gas distribution module is connected to the box body 1, and the air outlet pipe 3 is connected to the box body 1. Eight connectors 4 distributed in a rectangular array are fixed to the left side wall of the box body 1, and the sliding connection on the connector 4 There are spaced fixing parts 5, and the spaced fixing parts 5 are jointly fixed with a drying tube 6. The connector 4 and the fixing part 5 are cross-connected to ensure the stability of the drying tube 6 after plugging. A support switching unit is provided on the drying tube 6; the support switching unit includes four first support airbags 7 distributed in a circumferential array. The four first support airbags 7 are all provided on the drying tube 6. The drying tube 6 is provided with four second support airbags 8 distributed in a circumferential array. The four first support airbags 7 and the four second support airbags 8 are staggered. The number of the first support airbags 7 and the second support airbags 8 is only shown in the figure. The number of the two can be adjusted in real time according to demand. The expansion state of the first support airbag 7 and the second support airbag 8 and the first support airbag 7 and the second support airbag The contraction states of 8 are the same. The first supporting airbag 7 and the second supporting airbag 8 are both provided with exhaust holes distributed at intervals. The first supporting airbag 7 and the second supporting airbag 8 are both spiral. Taking a drying tube 6 as an example, when the first supporting airbag 7 is in an expanded state to support the casing, the four first supporting airbags 7, the drying tube 6 and the casing together form four spiral flow channels. The hot air in the first supporting airbag 7 is discharged into the spiral flow channel through the exhaust holes distributed at intervals thereon. When the gas flows along the spiral path, centrifugal force is generated to form a complex secondary flow (such as vortex or swirl), which enhances the turbulent effect, improves the convective heat transfer and moisture diffusion efficiency of the casing surface, thereby improving the drying effect of the inner wall of the casing. The first supporting airbag 7 and the second supporting airbag 8 are small in size. The heat-capacity elastic airbag facilitates the transfer of air temperature to the casing and the spiral flow channel. The first air pipe 9 and the second air pipe 10 are fixedly connected to the drying tube 6. The first air pipe 9 is connected to the second supporting airbags 8 distributed in a circumferential array, and the second air pipe 10 is connected to the first supporting airbags 7 distributed in a circumferential array. The first air pipe 9 and the second air pipe 10 are connected to the external hot air supply module through a pipeline, which is used to inject hot air into the first supporting airbag 7 and the second supporting airbag 8, and at the same time control the expansion state of the two according to the injection pressure. When the first supporting airbag 7 and the second supporting airbag 8 are in a contracted state, the air holes on the two are blocked by the drying tube 6. The box body 1 is provided with a disassembly mechanism for disassembling the drying tube 6, and the box body 1 is provided with an extrusion mechanism for extruding the casing.

[0031] like Figure 3 、 Figure 6 and Figure 7 As shown, the disassembly mechanism includes eight fixing seats 11 distributed in a rectangular array. The eight fixing seats 11 are all fixed to the right side wall of the box body 1, and the eight fixing seats 11 correspond to the eight drying tubes 6 one by one. The fixing seats 11 are slidably and rotatably connected to a sliding sleeve 12. The left part of the sliding sleeve 12 is provided with a thread. The drying tube 6 is fixed with a connector 13. The right part of the connector 13 is provided with a thread. The connector 13 is threadedly connected to the sliding sleeve 12. After the casing is put on the drying tube 6, the left side of the drying tube 6 is plugged into the plug-in member 4 through the four fixing members 5, and then the sliding sleeve 12 is pulled to the left until it contacts the connector 13. The connector 13 and the threads on the sliding sleeve 12 are gradually engaged. At the same time, the sliding sleeve 12 is rotated, and the sliding sleeve 12 gradually moves to the left along with the thread. After the engagement is completed, the installation is completed.

[0032] like Figure 4-Figure 7 As shown, both ends of the drying tube 6 are provided with a transfer cavity 14, and the transfer cavity 14 is annular. The drying tube 6 is provided with air inlets 15 distributed in a circumferential array, and the air inlets 15 distributed in the circumferential array are communicated with adjacent transfer cavities 14. Two pipes are provided on the drying tube 6, and the two pipes on the drying tube 6 are respectively communicated with adjacent transfer cavities 14. The air inlets 15 distributed in the circumferential array are staggered with the first support airbag 7 and the second support airbag 8. The exhaust holes distributed at intervals on the first support airbag 7 are located in the middle thereof, and the exhaust holes distributed at intervals on the second support airbag 8 are located in the middle thereof. In this way, when the casing is dried, the hot air in the spiral flow channel flows from the middle to the left and right sides, thereby reducing the probability of moisture precipitated from the casing accumulating in the middle of the casing.

[0033] like Figure 3 、 Figure 8 and Figure 9As shown, the extrusion mechanism includes a fixed rod 16, which is fixed in the box body 1, and a screw 17 is rotatably connected in the box body 1. The screw 17 is connected to an external power for driving the screw 17 to rotate. The fixed rod 16 is slidably connected to a sliding frame 18, and the sliding frame 18 is threadedly connected to the screw 17. The sliding frame 18 is fixed with a ring 19 distributed in a rectangular array. Initially, the sliding frame 18 and the ring 19 thereon are both located on the left side of the drying tube 6 distributed in a rectangular array. The rings 19 distributed in the rectangular array correspond to the drying tube 6 distributed in a rectangular array one by one, and the ring 19 coincides with the axis of the adjacent drying tube 6. A connecting pipe group 20 is fixed on the sliding frame 18. The connecting pipe group 20 is connected to the external air supply module for controlling the internal pressure of the connecting pipe group 20 to be stable. The connecting pipe group 20 is fixed and connected to The diverter 21 is called and distributed in a rectangular array. The diverter 21 passes through the adjacent rings 19. The symmetrically distributed diverter 21 rotates together and is connected to the extrusion airbags 22 that are symmetrically distributed above and below. The extrusion airbags 22 are semicircular, and elastic forming ribs are provided in the extrusion airbags 22 so that the shape of the extrusion airbags 22 is always maintained in a semicircular shape. When the pressure in the connecting tube group 20 increases, the extrusion airbags 22 expand. When the pressure in the connecting tube group 20 decreases, the extrusion airbags 22 contract. The extrusion airbags 22 are located in the ring 19. A flexible member 23 is fixed in the ring 19. There is a smooth contact surface between the flexible member 23 and the extrusion airbags 22, and the flexible member 23 is used to support the extrusion airbags 22. The flexible member 23 and the extrusion airbags 22 squeeze each other, and the diverter 21 passes through the adjacent flexible members 23.

[0034] The working process of the drying oven in this embodiment is as follows:

[0035] Drying preparation:

[0036] Rotate the sliding sleeve 12 to disconnect it from the connecting piece 13. After the casing is initially squeezed out of water, gradually put it on the drying tube 6 from right to left. After the installation is completed, the first air pipe 9 and the second air pipe 10 are connected to the external hot air supply module through pipes, and the transfer chamber 14 is connected to the external processing module through pipes. According to the above, casings are put on all drying tubes 6 and connected to the pipes (fix the two ends of the casings to the two ends of the drying tube 6), the connector 4 is docked with the fixing piece 5, and the connecting piece 13 is connected to the sliding sleeve 12. Then, the air inlet pipe 2 is connected to the external hot air supply module, and the air outlet pipe 3 is connected to the external processing module. The preparation work is completed.

[0037] Drying process:

[0038] Start the external hot air supply module and the external processing module. The external hot air supply module injects hot air into the air inlet pipe 2 and the second air delivery pipe 10. The hot air gradually and evenly fills the box body 1 from top to bottom through the air inlet pipe 2. The original gas in the box body 1 is discharged from the air outlet pipe 3 to the external processing module. Taking a drying tube 6 as an example, the hot air is injected into the four first supporting air bags 7 through the second air delivery pipe 10. The first supporting air bags 7 gradually expand and prop up the casing. The hot air in the first supporting air bags 7 is discharged into the spiral flow channel through the exhaust holes spaced apart thereon. When the gas flows along the spiral path, centrifugal force is generated to form a complex secondary flow (such as vortex or swirl), which enhances the turbulent effect and improves the convective heat transfer and water content on the surface of the casing. The diffusion efficiency is improved, thereby drying the inner wall of the casing, and the hot air in the box body 1 simultaneously dries the outer wall of the casing. After drying for a period of time (this event is the set switching time), the external hot air supply module injects hot air into the first air pipe 9, and the second supporting air bag 8 gradually expands, thereby supporting the casing. At the same time, the external hot air supply module controls the first supporting air bag 7 to shrink through the second air pipe 10, thereby losing contact with the inner wall of the casing. At this time, the spiral flow channel between the two adjacent second supporting air bags 8 completely includes the part of the inner wall of the casing that is in contact with the first supporting air bag 7, preventing the contact position of the inner wall of the casing from remaining unchanged during the drying process, thereby improving the drying uniformity and reducing the probability of water vapor retention.

[0039] During the above-mentioned drying process, the hot air discharged from the exhaust holes on the first supporting airbag 7 flows from the middle of the spiral flow channel to the left and right ends, and the water vapor dried from the inner wall of the casing moves synchronously to the left and right ends driven by the hot air, and flows into the transfer chamber 14 through the air inlet 15 distributed in the circumferential array. Then, the hot air containing water vapor (water vapor) flows through the pipeline to the external processing module to prevent the hot air containing water vapor from mixing into the box body 1, thereby affecting the overall drying environment of the box body 1.

[0040] During the casing drying process, the precipitated water vapor will form a steam layer near the surface, or precipitate grease, which will adhere to the casing and affect the drying efficiency of the casing. In order to solve the above problem, the external power is started to drive the screw 17 to rotate, and the screw 17 drives the sliding frame 18 and the parts thereon to move to the right. Taking a ring 19 as an example (and taking the expansion of the first supporting airbag 7 as an example), the ring 19 drives the extrusion airbag 22 to move to the right until it contacts the casing. The external air supply module injects pressure into the two extrusion airbags 22 through the connecting pipe group 20 and the diverter 21. The extrusion airbag 22 expands evenly in the circumference and squeezes the casing and the first supporting airbag 7 at the same time. A supporting air bag 7 and a flexible member 23 reduce the flow area of the spiral gas flow channel at the squeezed part, forming a throat structure. According to the Venturi effect, the gas flow velocity in the spiral flow channel increases when the air flow passes through the reduced flow cross-section under restricted flow. According to Bernoulli's principle, the increase in flow velocity is accompanied by a decrease in fluid pressure. In this way, the high-speed flow of the air flow at the throat enhances the convective heat exchange on the surface of the casing and accelerates water evaporation. At the same time, the low pressure at the throat can actively absorb moisture and reduce the probability of water vapor retaining on the surface of the casing. In addition, the rotating flow of the spiral flow channel can enhance the shear force of the air flow in the throat and further destroy the steam layer.

[0041] As the extrusion airbag 22 continues to move to the right, the throat structure area of the spiral gas flow channel moves to the right synchronously, thereby ensuring uniform drying of the casing. In addition, the extrusion airbag 22 rotates synchronously during the rightward movement, so that there is rolling friction between the casing and the extrusion airbag 22, thereby reducing the probability of casing damage. When the extrusion airbag 22 moves to the right end of the casing, the external power controls the lead screw 17 to reverse, so that the sliding frame 18 drives the extrusion airbag 22 to move to the left and reset.

[0042] After the casings are dried, the user removes the casings from the drying tube 6 and takes them out of the box 1 one by one.

[0043] Example 2

[0044] This embodiment discloses a casing drying oven with an extrusion structure, which is further improved on the basis of the first embodiment.

[0045] The structure, connection relationship and working process of the detection device in Example 1 will not be described in detail. The working principle of the following structure will be explained in detail, and the same applies to subsequent embodiments.

[0046] like Figure 4-Figure 7As shown, mirror-image-distributed guide members 131 are fixedly connected to the drying tube 6. The guide members 131 are electric fans that are connected to the outside world when the drying tube 6 is installed. When the guide members 131 are in operation, they guide the gas to flow from left to right, and the hot air in the box 1 maintains the temperature of the drying tube 6 itself stable, thereby making the casing drying more stable. The left side of the connecting member 13 is set as a cone. After the hot air has completed the heat exchange with the drying tube 6, it impacts the cone surface on the left side of the guide member 131 under the guidance of the right-side guide member 131 and is dispersed, thereby improving the mixing degree of the gas in the box 1 (temperature uniformity).

[0047] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the embodiments of the present invention and should not be construed in any way as limiting the scope of protection of the embodiments of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific implementations of the embodiments of the present invention without inventive effort, and such implementations will fall within the scope of protection of the embodiments of the present invention.

Claims

1. A casing drying oven with an extrusion structure, characterized by: The invention comprises a box body (1), the box body (1) is provided with an air inlet pipe (2) and an air outlet pipe (3), the box body (1) is fixed with connectors (4) distributed in a rectangular array, the connectors (4) are slidably connected with fixed parts (5) distributed at intervals, the fixed parts (5) distributed at intervals are commonly fixed with a drying pipe (6), and the drying pipe (6) is provided with a support switching unit; The support switching unit includes first support airbags (7) distributed in a circumferential array, the first support airbags (7) distributed in a circumferential array are all arranged on the drying tube (6), the drying tube (6) is provided with second support airbags (8) distributed in a circumferential array, the first support airbags (7) distributed in a circumferential array and the second support airbags (8) distributed in a circumferential array are staggered, the drying tube (6) is fixed with a first air supply pipe (9) and a second air supply pipe (10), the first air supply pipe (9) is communicated with the second support airbags (8) distributed in a circumferential array, the second air supply pipe (10) is communicated with the first support airbags (7) distributed in a circumferential array, the box (1) is provided with a disassembly mechanism for disassembling the drying tube (6), and the box (1) is provided with an extrusion mechanism for extruding the casing; The extrusion mechanism includes a fixed rod (16), the fixed rod (16) is fixed in the box body (1), a lead screw (17) is rotatably connected in the box body (1), the fixed rod (16) is slidably connected to a sliding frame (18), the sliding frame (18) is threadedly connected to the lead screw (17), the sliding frame (18) is fixed with rings (19) distributed in a rectangular array, the rings (19) distributed in a rectangular array correspond one to one with the drying tubes (6) distributed in a rectangular array, the sliding frame (18) is fixed with a connecting pipe group (20), the connecting pipe group (20) is fixed and connected with symmetrical and rectangular array diverter pieces (21), the diverter pieces (21) pass through adjacent rings (19), the symmetrically distributed diverter pieces (21) are rotatably connected together and connected with symmetrically distributed extrusion air bags (22), and the extrusion air bags (22) are located in the rings (19); A flexible member (23) is fixedly connected inside the collar (19), the flexible member (23) and the extrusion airbag (22) are mutually extruded, and the diverter member (21) passes through the adjacent flexible member (23).

2. The casing drying oven with an extrusion structure according to claim 1, characterized in that: The air inlet pipe (2) is located above the air outlet pipe (3).

3. The casing drying oven with an extrusion structure according to claim 2, characterized in that: The first supporting airbag (7) and the second supporting airbag (8) are both provided with exhaust holes distributed at intervals.

4. The casing drying oven with an extrusion structure according to claim 3, characterized in that: The first supporting airbag (7) and the second supporting airbag (8) are both spiral-shaped.

5. The casing drying oven with an extrusion structure according to claim 4, characterized in that: The disassembly mechanism comprises fixed seats (11) distributed in a rectangular array, the fixed seats (11) distributed in a rectangular array are all fixedly connected to the box body (1), and the fixed seats (11) distributed in a rectangular array correspond one to one with the drying tubes (6) distributed in a rectangular array, the fixed seats (11) slide and the rotating ring is connected to a sliding sleeve (12), the drying tube (6) is fixedly connected to a connecting piece (13), and the connecting piece (13) is threadedly connected to the sliding sleeve (12).

6. The casing drying oven with an extrusion structure according to claim 5, characterized in that: Transfer cavities (14) are provided at both ends of the drying tube (6). Air inlets (15) are arranged in a circumferential array and symmetrically distributed on the drying tube (6). The air inlets (15) distributed in the circumferential array are communicated with the adjacent transfer cavities (14). Two pipes are provided on the drying tube (6), and the two pipes on the drying tube (6) are respectively communicated with the adjacent transfer cavities (14).

7. The casing drying oven with an extrusion structure according to claim 6, characterized in that: The exhaust holes distributed at intervals on the first supporting airbag (7) are located in the middle thereof, and the exhaust holes distributed at intervals on the second supporting airbag (8) are located in the middle thereof.

8. The casing drying oven with an extrusion structure according to claim 7, characterized in that: Mirror-distributed flow guides (131) are fixedly connected to the drying tube (6), and a side of the connecting member (13) adjacent to the flow guide (131) is configured as a conical surface.

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