CN110696395A - Contact lens compound die former - Google Patents

Abstract

The invention discloses a contact lens mold clamping and molding equipment, which belongs to the technical field of contact lens injection mold clamping and molding. A contact lens mold clamping and forming equipment, comprising a frame, on which are respectively connected a turntable device, a lower mold automatic discharge device, a lower mold reclaimer, a liquid injection device, an upper mold automatic discharge device, and an upper mold A reclaiming device, a clamping device, a jacking device, a discharging device and a tunnel oven device; the clamping device includes a clamping horizontal driving cylinder, a pressing and lifting servo, a spring and an upper mold suction nozzle; the contact lens provided by the present invention The automatic mold clamping and forming equipment realizes the automatic feeding of the upper mold and the lower mold for contact lens molding, automatic liquid injection, mold closing, and automatic baking molding, which realizes the automatic production of the contact lens molding process, and only needs one operator to supplement The upper mold and lower mold materials are enough, which greatly improves the production efficiency, reduces the labor intensity and saves the cost.

Description

A kind of contact lens clamping molding equipment

technical field

The invention relates to the technical field of contact lens injection mold clamping and molding, in particular to a contact lens mold clamping and molding equipment.

Background technique

In the production process of contact lenses, the contact lenses are formed by liquid injection, upper mold and lower mold clamping, and oven molding and curing. The existing equipment adopts semi-automatic machines, and the tooling is manually picked and placed, which is labor-intensive and productivity is relatively high. Low, unable to meet the needs of mass production, the existing equipment tunnel oven can not limit the workpiece, the defect rate is high.

SUMMARY OF THE INVENTION

The purpose of the present invention is to propose a contact lens clamping molding equipment in order to solve the problems existing in the prior art.

In order to achieve the above object, the present invention adopts the following technical solutions:

A contact lens mold clamping and forming device, comprising a frame, on which are respectively connected a turntable device, a lower mold automatic discharge device, a lower mold reclaimer, a liquid injection device, an upper mold automatic discharge device, and an upper mold A reclaiming device, a clamping device, a jacking device, a discharging device and a tunnel oven device, the lower die automatic discharging device is connected to and matched with the outer wall of the lower die automatic feeding device;

The clamping device includes a clamping horizontal driving cylinder, a pressing and lifting servo, a spring and an upper mould suction nozzle, the pressing and lifting servo is connected to the output end of the clamping horizontal driving cylinder, and the upper mould suction nozzle is connected to the pressing The output end of the lift servo.

Preferably, the turntable device mainly includes an indexing device and a turntable body, the turntable body is connected to the top outer wall of the indexing device, a turntable fixture is connected to the turntable body, and the outer wall of the indexing device is also connected to the dividing Dial drive motor.

Preferably, the lower mold automatic discharging device includes a lower mold automatic feeding device, an arrangement slideway, a platen cylinder, a lower mold material distributing fork cylinder and a lower mold positioning cylinder. Both the cylinder and the lower die positioning cylinder are connected to the arrangement slideway.

Preferably, the lower mold reclaiming device comprises a lower mold reclaiming extension cylinder, a suction head lifting cylinder and a lower mold suction head, the suction head lifting cylinder is connected to the output end of the lower mold reclaiming extension cylinder, and the lower mold lifting cylinder is connected. The die suction head is connected to the output end of the suction head lift cylinder.

Preferably, the liquid injection device includes a liquid injection needle, a liquid injection lift cylinder and a quantitative pump, and the liquid injection needle is connected to the output end of the liquid injection lift cylinder.

Preferably, the upper die automatic discharging device comprises an upper die automatic feeding device, an upper die arrangement with direct vibration, a belt conveyor line, an upper die separating fork cylinder and an upper die positioning cylinder. The upper mold positioning cylinders are all connected to the belt conveyor line.

Preferably, the upper die reclaiming device includes a reclaiming lift cylinder, a reclaiming rotary cylinder and a reclaiming suction head, and the reclaiming rotary cylinder and the reclaiming suction head are both connected to the output end of the reclaiming and lifting cylinder, and the The reclaiming suction head is connected to the output end of the reclaiming rotary cylinder.

Preferably, the jacking device includes a discharge jacking cylinder and a jacking rod, and the jacking rod is connected to an output end of the discharge jacking cylinder.

Preferably, the discharging device includes a discharging translation servo, a discharging translation cylinder, a discharging lifting cylinder and a reclaiming fork, and the discharging fork is connected to the output end of the discharging and lifting cylinder.

Preferably, the tunnel oven device includes an oven conveying line, an oven body, a receiving box, an upper mold body, an oven fixture and a lower mold body, the oven body is connected to the oven conveying line, and the oven body is also provided with There is an oven inlet and an oven outlet.

Compared with the prior art, the present invention provides a contact lens clamping molding equipment, which has the following beneficial effects:

The contact lens mold clamping and forming equipment, when working, firstly needs to do preparatory work, put the lower mold body into the lower mold automatic feeding device, put the upper mold body into the upper mold automatic feeding device, put The inlet tube of the dosing pump is placed into the contact lens-making liquid.

When the equipment is running, the lower die automatic feeding device automatically arranges the lower die body on the arrangement slideway. When 10 lower dies are supplied, the lower die automatic feeding device stops feeding, and the lower die separating fork cylinder retracts. The automatic feeding device of the lower die blows 10 lower die bodies into the end of the arrangement slideway at one time, the lower die positioning cylinder retracts, the lower die dividing fork cylinder extends, and the 10 lower die bodies are equally spaced apart. The distance between the suction heads of the lower die is equal, and then the platen cylinder is retracted, the lower die reclaimer extends out of the cylinder, and the suction head lift cylinder and the lower die suction head are extended together. Under the action of the vacuum generator, the lower mold body is sucked, then the suction head lift cylinder rises, the lower mold reclaimer extends out of the cylinder, the suction head lift cylinder descends, the lower mold body falls into the hole of the turntable fixture, and then the suction head The lifting cylinder and the lower die reclaimer extend out of the cylinder and return.

After the discharge of the lower die body is completed, the turntable body rotates one index under the action of the indexing plate drive motor and the indexing device. At this time, the lower die body turns to the right under the liquid injection device, the liquid injection lift cylinder descends, and then When the quantitative pump works, the injection needle injects the liquid into the lower mold body quantitatively. After the injection is completed, the turntable body rotates by one index, and the lower mold body rotates directly below the clamping device.

The upper die automatic feeding device automatically arranges the upper die body on the upper die arrangement, and the upper die arrangement directly vibrates to transport the upper die body to the belt conveyor line in turn. The fork cylinder is retracted, and the belt conveying line transports the 10 upper mold bodies to the upper mold positioning cylinder. The spacing is equal to the spacing of the reclaiming nozzles, then the upper mold separating fork cylinder is retracted, the reclaiming rotary cylinder is turned over to the reclaiming position, the reclaiming lifting cylinder is lowered, and the reclaiming nozzles simultaneously suck up 10 upper mold bodies, and then take The material lifting cylinder rises, the reclaiming rotary cylinder flips back, the clamping level drives the cylinder to drive the pressing lift servo and the upper mould suction nozzle to extend together, the pressing lift servo drives the upper mould suction nozzle to descend and absorb 10 upper mould bodies, and then The press-fit lift servo lifts, and the clamping level drives the cylinder to retract. After the press-fit lift servo drives the upper die body down, it is pressed into the lower die body on the turntable fixture. According to the elasticity of the spring, the press-fit lift servo adjusts the pressure. After the pressing is completed, the pressing and lowering servo rises and returns, and the turntable body rotates by one index. At this time, the clamping parts of the upper mold body and the lower mold body turn to the top of the jacking device.

The discharge jacking cylinder drives the jacking rod to rise, and lifts the upper and lower mold parts. The discharge lifting cylinder drives the reclaiming fork to descend. The material lifting cylinder rises, the reclaiming fork lifts the upper and lower mold parts, and the discharge translation servo drives the reclaiming fork and the upper and lower mold parts to extend forward, reaching the top of the hole of the oven conveying line, and the material is discharged. The lifting cylinder drives the reclaiming fork and the upper and lower mold parts to descend. After the material is in place, the discharge translation servo drives the reclaiming fork to retreat, and the upper and lower mold parts will fall into the holes of the oven fixture. At this time, the lower mold body Supported on the oven fixture, therefore, the upper and lower mold parts will not shake, to avoid product shaking and cause poor product molding. When putting down a group of upper and lower mold parts, the unloading translation cylinder moves to the other side, and then the upper and lower mold parts are moved to the other side. The mold parts are placed on the oven fixture, which increases the space utilization rate of the oven and shortens the distance of the oven. After the upper and lower mold parts are placed, the oven conveyor line moves a specified distance, and the upper and lower mold parts pass through the oven body. After baking and forming, the material is discharged from the outlet of the oven, and falls freely into the receiving box, and then the receiving box and the formed upper and lower mold parts are manually removed to enter the next process.

The parts not involved in the device are the same as the prior art or can be realized by using the prior art. The contact lens automatic mold clamping and forming equipment provided by the present invention realizes the automatic feeding of the upper mold and the lower mold for contact lens molding, and automatic injection. Liquid, mold clamping, and automatic baking molding realize the fully automatic production of contact lens molding process. Only one operator is needed to supplement the upper mold and lower mold materials, which greatly improves production efficiency, reduces labor intensity and saves costs. .

Description of drawings

Fig. 1 is the perspective view of contact lens clamping molding equipment provided by the present invention;

Fig. 2 is the top view of contact lens clamping molding equipment provided by the present invention;

Fig. 3 is the perspective view of the lower die automatic discharging device provided by the present invention;

4 is a perspective view of a lower die reclaimer provided by the present invention;

Fig. 5 is the front view of the liquid injection device provided by the present invention;

6 is a perspective view of the upper die automatic discharge device provided by the present invention;

7 is a perspective view of the upper die reclaiming device provided by the present invention;

8 is a perspective view of a mold clamping device provided by the present invention;

9 is a perspective view of the jacking device provided by the present invention;

10 is a perspective view of the discharging device provided by the present invention;

11 is a perspective view of the turntable device provided by the present invention;

12 is a perspective view of a tunnel oven device provided by the present invention;

13 is a partial schematic diagram of a fixture of the tunnel oven device provided by the present invention.

In the figure: 1. Turntable device; 2. Lower die automatic discharging device; 3. Lower die reclaiming device; 4. Liquid injection device; 5. Upper die automatic discharging device; 6. Upper die reclaiming device; 7. Clamping device; 8. Lifting device; 9. Discharging device; 10. Tunnel oven device; 11. Lower die automatic feeding device; 12. Arrangement slideway; 13. Platen cylinder; 14. Lower die dividing fork Cylinder; 15. Lower die positioning cylinder; 16. Lower die reclaiming cylinder; 17. Suction head lift cylinder; 18. Lower die suction head; 19. Liquid injection needle; 20. Liquid injection lift cylinder; 21. Quantitative pump ;22. Upper die automatic feeding device; 23. Upper die arrangement and direct vibration; 24. Belt conveyor line; 25. Upper die dividing fork cylinder; 26. Upper die positioning cylinder; Reclaiming rotary cylinder; 29. Reclaiming suction head; 30. Clamping horizontal drive cylinder; 31. Pressing lift servo; 32. Spring; 33. Upper die suction nozzle; 34. Discharging jacking cylinder; 35. Jacking Rod; 36. Discharging translation servo; 37. Discharging translation cylinder; 38. Discharging lifting cylinder; 39. Reclaiming fork; 40. Indexing plate drive motor; 41. Indexing device; 42. Turntable body; 43 , turntable fixture; 44, oven conveying line; 45, oven inlet; 46, oven body; 47, oven outlet; 48, receiving box; 49, upper mold body; 50, oven fixture; 51, lower mold body.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", " The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation are therefore not to be construed as limitations of the present invention.

Example:

Referring to Figures 1-13, a contact lens mold clamping and forming equipment includes a rack, and the rack is respectively connected with a turntable device 1, a lower mold automatic discharge device 2, a lower mold reclaiming device 3, a liquid injection device 4, an upper mold The mold automatic discharge device 5, the upper mold reclaimer 6, the mold clamping device 7, the jacking device 8, the discharge device 9 and the tunnel oven device 10, the lower mold automatic discharge device 2 is connected to the lower mold automatic feeding device 11. outer wall and cooperate with it;

The clamping device 7 includes a clamping horizontal driving cylinder 30, a pressing and lifting servo 31, a spring 32 and an upper mould suction nozzle 33. The pressing and lifting servo 31 is connected to the output end of the clamping horizontal driving cylinder 30, and the upper mould suction nozzle 33 is connected to At the output end of the press-fit lift servo 31 .

The turntable device 1 mainly includes an indexing device 41 and a turntable body 42, the turntable body 42 is connected to the top outer wall of the indexing device 41, a turntable fixture 43 is connected to the turntable body 42, and the outer wall of the indexing device 41 is also connected to the indexing disc drive. Motor 40.

The lower die automatic discharging device 2 includes the lower die automatic feeding device 11, the arrangement slideway 12, the pressure plate cylinder 13, the lower die material distribution fork cylinder 14, the lower die positioning cylinder 15, the pressure plate cylinder 13, the lower die material distribution fork Both the cylinder 14 and the lower mold positioning cylinder 15 are connected to the arrangement slideway 12 .

The lower mold reclaiming device 3 includes a lower mold reclaiming and extending cylinder 16, a suction head lifting cylinder 17 and a lower mold suction head 18. The suction head lifting cylinder 17 is connected to the output end of the lower mold reclaiming and extending cylinder 16. The lower mold suction head 18 is connected to the output end of the suction head lift cylinder 17 .

The liquid injection device 4 includes a liquid injection needle 19 , a liquid injection lift cylinder 20 and a quantitative pump 21 , and the liquid injection needle 19 is connected to the output end of the liquid injection lift cylinder 20 .

The upper die automatic discharging device 5 includes the upper die automatic feeding device 22, the upper die arrangement direct vibration 23, the belt conveying line 24, the upper die separating fork cylinder 25 and the upper die positioning cylinder 26, the upper die arrangement direct vibration 23 and The upper mold positioning cylinders 26 are all connected to the belt conveyor line 24 .

The upper die reclaiming device 6 includes a reclaiming lift cylinder 27, a reclaiming rotary cylinder 28 and a reclaiming suction head 29. The reclaiming rotary cylinder 28 and the reclaiming suction head 29 are both connected to the output end of the reclaiming and lifting cylinder 27, and the reclaiming The suction head 29 is connected to the output end of the reclaiming rotary cylinder 28 .

The jacking device 8 includes a discharging jacking cylinder 34 and a jacking rod 35 , and the jacking rod 35 is connected to the output end of the discharging jacking cylinder 34 .

The discharging device 9 includes a discharging translation servo 36 , a discharging translation cylinder 37 , a discharging lifting cylinder 38 and a reclaiming fork 39 , which is connected to the output end of the discharging and lifting cylinder 38 .

The tunnel oven device 10 includes an oven conveying line 44, an oven body 46, a receiving box 48, an upper mold body 49, an oven fixture 50 and a lower mold body 51. The oven body 46 is connected to the oven conveying line 44, and the oven body 46 is also connected to the oven conveying line 44. An oven inlet 45 and an oven outlet 47 are provided.

In the present invention, during the specific work, the manual first needs to do the preparatory work, put the lower mold body 51 into the lower mold automatic feeding device 11, put the upper mold body 49 into the upper mold automatic feeding device 22, and put the lower mold body 51 into the lower mold automatic feeding device 11. The inlet tube of the metering pump 21 is put into the contact lens preparation liquid.

When the equipment is running, the lower mold automatic feeding device 11 automatically arranges the lower mold body 51 on the arrangement slideway 12. When 10 lower molds are supplied, the lower mold automatic feeding device 11 stops feeding, and the lower mold is divided and dialed. The fork cylinder 14 is retracted, the lower mold automatic feeding device 11 blows 10 lower mold bodies 51 into the end of the arrangement slideway 12 at one time, the lower mold positioning cylinder 15 is retracted, and the lower mold material separating fork cylinder 14 is extended. The 10 lower mold bodies 51 are equally spaced, and the spacing is equal to that between the lower mold suction heads 18, then the platen cylinder 13 is retracted, and the lower mold reclaimer extends out of the cylinder 16 to drive the suction head lift cylinder 17 and the lower mold suction head. 18 are extended together. After the suction head lift cylinder 17 descends in place, the lower mold suction head 18 sucks the lower mold body 51 under the action of the vacuum generator, then the suction head lift cylinder 17 rises, and the lower mold reclaimer extends out of the cylinder 16. , the suction head lift cylinder 17 descends, the lower mold body 51 falls into the hole of the turntable fixture 43, and then the suction head lift cylinder 17 and the lower mold reclaimer extend out of the cylinder 16 to return to their positions.

After the lower mold body 51 is discharged, the turntable body 42 rotates by one index under the action of the indexing plate drive motor 40 and the indexing device 41. The liquid lifting cylinder 20 descends, then the quantitative pump 21 works, and the liquid injection needle 19 injects liquid into the lower mold body 51 quantitatively. Directly below.

The upper die automatic feeding device 22 automatically arranges the upper die body 49 on the upper die arrangement direct vibration 23, and the upper die arrangement direct vibration 23 transports the upper die body 49 to the belt conveyor line 24 in turn, and conveys 10 upper die bodies 49 Afterwards, the upper mold separating fork cylinder 25 is retracted, and the belt conveying line 24 transports 10 upper mold bodies 49 to the upper mold positioning cylinder 26. After the upper mold positioning cylinder 26 is in place, the upper mold positioning cylinder 26 is retracted, and the upper mold separating fork cylinder 25 is extended, and the 10 upper molds are equally spaced apart, and the spacing is equal to that of the reclaiming nozzle 29, then the upper mold separating fork cylinder 25 is retracted, the reclaiming rotary cylinder 28 is turned over to the reclaiming position, and the reclaiming and lifting cylinder 27 goes down, the reclaiming suction head 29 sucks 10 upper mold bodies 49 at the same time, then the reclaiming lifting cylinder 27 rises, the reclaiming rotary cylinder 28 is turned back, and the clamping horizontal driving cylinder 30 drives the pressing and lifting servo 31 and the upper mold suction. The nozzles 33 are extended together, and the pressing and lifting servo 31 drives the upper mold suction nozzle 33 to descend and absorb 10 upper mold bodies 49, and then the pressing and lifting servo 31 is lifted, and the clamping level drives the cylinder 30 to retract. After the pressing and lifting servo 31 is in place The upper die body 49 is driven down, and pressed into the lower die body 51 on the turntable fixture 43. According to the elastic force of the spring 32, the pressing and lifting servo 31 adjusts the pressing depth. After the pressing is completed, the pressing and lifting servo 31 rises. After returning, the turntable body 42 rotates by one index. At this time, the mold clamping parts of the upper mold body 49 and the lower mold body 51 are rotated to the top of the jacking device 8 .

The discharge jacking cylinder 34 drives the jacking rod 35 to lift up to lift the upper and lower mold parts, the discharge lifting cylinder 38 drives the reclaiming fork 39 to descend, and the discharge translation servo 36 drives the reclaiming fork 39 to insert into the lower mold Right below the main body 51, the discharging lift cylinder 38 rises, the reclaiming fork 39 holds up the upper and lower mold parts, and the discharge translation servo 36 drives the reclaiming fork 39 and the upper and lower mold parts to extend forward, reaching the Just above the hole of the oven conveying line 44, the discharging lift cylinder 38 drives the reclaiming fork 39 and the upper and lower mold parts to descend. It will fall into the hole of the oven jig 50. At this time, the lower mold body 51 is supported on the oven jig 50. Therefore, the upper and lower mold parts will not shake, so as to avoid product shaking and cause poor product molding, put down a set of upper and lower molds. When the mold parts are molded, the discharge translation cylinder 37 moves to the other side, and then the upper and lower mold parts are placed on the oven fixture 50, which increases the space utilization rate of the oven and shortens the distance of the oven. After the mold parts are molded, the oven conveying line 44 moves a specified distance, and the upper and lower mold parts are baked and formed through the oven body 46, discharged from the oven outlet 47, and freely dropped into the receiving box 48, and then the receiving box 48 is manually And the upper and lower mold parts after molding are taken away and entered into the next process.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (10)

1. A contact lens die assembly forming device comprises a rack, and is characterized in that the rack is respectively connected with a turntable device (1), a lower die automatic discharging device (2), a lower die material taking device (3), a liquid injection device (4), an upper die automatic discharging device (5), an upper die material taking device (6), a die assembly device (7), a jacking device (8), a discharging device (9) and a tunnel oven device (10), and the lower die automatic discharging device (2) is connected to the outer wall of the lower die automatic feeding device (11) and matched with the lower die automatic feeding device;

the mold closing device (7) comprises a mold closing horizontal driving cylinder (30), a pressing lifting servo (31), a spring (32) and an upper mold suction nozzle (33), wherein the pressing lifting servo (31) is connected to the output end of the mold closing horizontal driving cylinder (30), and the upper mold suction nozzle (33) is connected to the output end of the pressing lifting servo (31).

2. The mold closing and forming equipment for the contact lenses according to claim 1, wherein the turntable device (1) mainly comprises an indexing device (41) and a turntable body (42), the turntable body (42) is connected to the outer wall of the top of the indexing device (41), a turntable jig (43) is connected to the turntable body (42), and the outer wall of the indexing device (41) is further connected to an indexing disc driving motor (40).

3. The contact lens matched-die forming equipment according to claim 2, wherein the lower die automatic discharging device (2) comprises a lower die automatic feeding device (11), an arrangement slideway (12), a platen cylinder (13), a lower die distributing fork cylinder (14) and a lower die positioning cylinder (15), and the platen cylinder (13), the lower die distributing fork cylinder (14) and the lower die positioning cylinder (15) are all connected on the arrangement slideway (12).

4. A contact lens matched mold forming device according to claim 3, wherein the lower mold material taking device (3) comprises a lower mold material taking and extending cylinder (16), a suction head lifting cylinder (17) and a lower mold suction head (18), the suction head lifting cylinder (17) is connected to the output end of the lower mold material taking and extending cylinder (16), and the lower mold suction head (18) is connected to the output end of the suction head lifting cylinder (17).

5. A contact lens matched mold forming device according to claim 4, wherein the liquid injection device (4) comprises a liquid injection needle head (19), a liquid injection lifting cylinder (20) and a quantitative pump (21), and the liquid injection needle head (19) is connected to the output end of the liquid injection lifting cylinder (20).

6. The contact lens matched-die forming equipment according to claim 5, wherein the upper die automatic discharging device (5) comprises an upper die automatic feeding device (22), an upper die arrangement direct vibration device (23), a belt conveying line (24), an upper die distribution fork cylinder (25) and an upper die positioning cylinder (26), and the upper die arrangement direct vibration device (23) and the upper die positioning cylinder (26) are connected to the belt conveying line (24).

7. A contact lens matched mold forming device according to claim 6, wherein the upper mold material taking device (6) comprises a material taking lifting cylinder (27), a material taking rotating cylinder (28) and a material taking suction head (29), the material taking rotating cylinder (28) and the material taking suction head (29) are both connected to the output end of the material taking lifting cylinder (27), and the material taking suction head (29) is connected to the output end of the material taking rotating cylinder (28).

8. The mold closing and molding apparatus for contact lenses according to claim 1, wherein the lifting device (8) comprises an ejection lifting cylinder (34) and a lifting rod (35), and the lifting rod (35) is connected to the output end of the ejection lifting cylinder (34).

9. A contact lens matched mold forming device according to claim 8, wherein the discharging device (9) comprises a discharging translation servo (36), a discharging translation cylinder (37), a discharging lifting cylinder (38) and a taking fork (39), and the taking fork (39) is connected to the output end of the discharging lifting cylinder (38).

10. The contact lens matched-mold forming equipment according to claim 9, wherein the tunnel oven device (10) comprises an oven conveying line (44), an oven body (46), a material receiving box (48), an upper mold body (49), an oven fixture (50) and a lower mold body (51), the oven body (46) is connected to the oven conveying line (44), and an oven inlet (45) and an oven outlet (47) are further arranged on the oven body (46).

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