Thermal insulation structure in greenhouse

Abstract

The utility model discloses a heat preservation structure in a greenhouse, which relates to the technical field of agricultural greenhouse heat preservation, and comprises two groups of end surface heat preservation components, two groups of side surface heat preservation components and a top surface heat preservation layer, each group of end surface heat preservation component comprises an end surface heat preservation film, an end surface mounting part, an end surface film rolling rod and an end surface film rolling device, the end face heat preservation film can be hung on a beam on the end face of the greenhouse through the end face installation part, and the end face film rolling device can drive the end face film rolling rod to fold or unfold the end face heat preservation film. Each side face heat preservation assembly comprises a side face heat preservation film, a side face installation part, a side face film rolling rod and a side face film rolling device, the side face heat preservation films can be hung on cross beams on the side faces of the greenhouse through the side face installation parts, and the side face film rolling devices can drive the side face film rolling rods to fold or unfold the side face heat preservation films. The top face heat preservation layer is used for being laid on the top face of the greenhouse, and the top face heat preservation layer, the two end face heat preservation films and the two side face heat preservation films can form a closed greenhouse heat preservation area.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural greenhouse insulation, in particular to a greenhouse insulation structure. Background Art

[0002] With the continuous development of modern agriculture in my country, the status and role of facility agriculture are becoming increasingly prominent. During the winter production of facility agriculture, it is necessary to regulate the microenvironment temperature in the greenhouse through reasonable insulation measures to ensure the environmental conditions required for crop growth.

[0003] At present, adding a layer of thermal insulation film in the greenhouse is a common method of greenhouse insulation in winter. The thermal insulation film can effectively reduce the heat loss in the greenhouse.

[0004] However, the laying of the insulation film in the prior art is mostly done manually by fixing the insulation film on the beams of the greenhouse through linear materials such as iron wire or cotton thread, which is time-consuming and labor-intensive. Not only is the workload extremely large, but it is also difficult to quickly and completely uncover the insulation film when the temperature in the greenhouse is high during the day, which can easily have an adverse effect on the growth of crops. At the same time, during non-winter production, all the insulation films need to be removed manually, and during the next winter production, the film needs to be laid manually again. Such repetitive labor is obvious, resulting in low labor productivity. Utility Model Content

[0005] The purpose of the utility model is to provide a heat preservation structure in a greenhouse to solve the problems existing in the above-mentioned prior art. The heat preservation film around the greenhouse is rolled up or unfolded in a film-rolling manner. The operation is simple and efficient. While ensuring a good heat preservation effect, it saves manpower and improves production efficiency.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a heat preservation structure in a greenhouse, comprising an end surface heat preservation component, a side surface heat preservation component and a top surface heat preservation layer, wherein the end surface heat preservation component comprises an end surface heat preservation film, an end surface mounting portion, an end surface film rolling rod and an end surface film rolling device, wherein the end surface heat preservation film can be hung on a crossbeam at the end surface of the greenhouse through the end surface mounting portion, the end surface film rolling rod is arranged at a side of the end surface heat preservation film away from the end surface mounting portion, the end surface film rolling device is arranged at the end of the end surface film rolling rod and can drive the end surface film rolling rod to retract or unfold the end surface heat preservation film; the side surface heat preservation component comprises a side surface heat preservation film, a side surface mounting portion, a side surface film rolling rod and a side surface film rolling device, wherein the side surface heat preservation film can be hung on a crossbeam at the end surface of the greenhouse through the end surface mounting portion, the end surface film rolling rod is arranged at a side of the end surface heat preservation film away from the end surface mounting portion, the end surface film rolling device is arranged at the end of the end surface film rolling rod and can drive the end surface film rolling rod to retract or unfold the end surface heat preservation film; the side surface heat preservation component comprises a side surface heat preservation film, a side surface mounting portion, a side surface film rolling rod and a side surface film rolling device, The mounting portion is suspended on the crossbeam on the side of the greenhouse, the side film rolling rod is arranged on the side of the side insulation film away from the side mounting portion, the side film rolling device is arranged at the end of the side film rolling rod, and can drive the side film rolling rod to retract or unfold the side insulation film; the end surface insulation components are provided with two groups, and the two groups of end surface insulation components are respectively arranged on the front end surface and the rear end surface of the greenhouse; the side insulation components are provided with two groups, and the two groups of side insulation components are respectively arranged on the left side and the right side of the greenhouse; the top surface insulation layer is used for laying on the top surface of the greenhouse, and the top surface insulation layer, the two groups of the end surface insulation films and the two groups of the side insulation films can form a closed greenhouse insulation area.

[0008] Preferably, the end face mounting portion includes a first clamping groove and a first clamping spring, and the first clamping groove is provided with a plurality of first clamping hooks, and all the first clamping hooks are evenly arranged along the length direction of the first clamping groove, so that the first clamping groove can be fixed on the crossbeam of the end face of the greenhouse; the first clamping spring is used for the end face thermal insulation film to be wrapped and connected, and is clamped in the first clamping groove to connect the end face thermal insulation film with the first clamping groove.

[0009] Preferably, the end surface thermal insulation film is wound around and connected to the end surface film rolling rod at a side away from the first retaining spring, and is fixedly connected to the end surface film rolling rod via a plurality of first buckles.

[0010] Preferably, the side mounting portion includes a second slot and a second retaining spring, and the second slot is provided with a plurality of second hooks, and all the second hooks are evenly arranged along the length direction of the second slot so that the second slot can be fixed on the crossbeam on the side of the greenhouse; the second retaining spring is used for the side insulation film to be wrapped and connected, and is clamped in the second slot to connect the side insulation film and the second slot.

[0011] Preferably, the side insulation film of the side surface away from the second retaining spring is wound and connected to the side film rolling rod, and is fixedly connected to the side film rolling rod through a plurality of second buckles.

[0012] Preferably, the end face insulation film of at least one group of the end face insulation components is a structure formed by splicing multiple sections of insulation films, and the end face film rolling rod is a structure formed by detachably connecting multiple sections of film rolling rods, and the insulation films are arranged in a one-to-one correspondence with the film rolling rods.

[0013] Preferably, the adjacent film-rolling film-rolling rods can be plug-connected, and the plug-connected positions of the adjacent film-rolling film-rolling rods can be fixed by set screws.

[0014] Preferably, the end face insulation component also includes an end face film pressing part, the end face film pressing part includes a first film pressing line and a first ground nail, one end of the first film pressing line can be fixed to the beam of the end face of the greenhouse, and the other end can be fixed to the ground through the first ground nail, and the end face film pressing part is provided with multiple groups, when the end face insulation film is unfolded, all the first film pressing lines can be evenly pressed on the outside of the end face insulation film; the side insulation component also includes a side film pressing part, the side film pressing part includes a second film pressing line and a second ground nail, one end of the second film pressing line can be fixed to the beam of the side face of the greenhouse, and the other end can be fixed to the ground through the second ground nail, and the side film pressing part is provided with multiple groups, when the side insulation film is unfolded, all the second film pressing lines can be evenly pressed on the outside of the side insulation film.

[0015] Preferably, the insulation structure in the greenhouse also includes a temperature sensor and a controller. The temperature sensor, the end film roller and the side film roller are all electrically connected to the controller. The temperature sensor is used to monitor the temperature in the insulation area of ​​the greenhouse, and the controller is used to control the start and stop of the end film roller and the side film roller.

[0016] Preferably, the end film rolling machine and the side film rolling machine are both manual-automatic integrated film rolling machines.

[0017] Compared with the prior art, the utility model has achieved the following technical effects:

[0018] The utility model provides a greenhouse insulation structure, comprising two groups of end surface insulation components, two groups of side surface insulation components and a top surface insulation layer, the two groups of end surface insulation components are respectively arranged on the front end surface and the rear end surface of the greenhouse, each group of end surface insulation components comprises an end surface insulation film, an end surface mounting portion, an end surface film rolling rod and an end surface film rolling device, the two groups of side surface insulation components are respectively arranged on the left side and the right side of the greenhouse, each group of side surface insulation components comprises a side surface insulation film, a side surface mounting portion, a side surface film rolling rod and a side surface film rolling device, when in use, each group of end surface insulation films is hung on the corresponding crossbeam of the greenhouse end face through the end surface mounting portion, each group of side surface insulation films is hung on the corresponding crossbeam of the greenhouse side face through the side surface mounting portion, and the top surface insulation layer is laid on the top surface of the greenhouse, so that the top surface insulation layer, the two groups of end surface insulation films and the two groups of side surface insulation films can form a closed greenhouse insulation area, and the installation is simple and convenient.

[0019] When producing in winter, each group of end film rolls drives the end film roll rod to unfold the end insulation film, and each group of side film rolls drives the side film roll rod to unfold the side insulation film, so as to achieve the insulation of the greenhouse; when producing outside the winter, each group of end film rolls drives the end film roll rod to retract the end insulation film, and each group of side film rolls drives the side film roll rod to retract the side insulation film, so as to achieve the folding of the insulation film around the greenhouse without manually removing the insulation film and supporting materials, thus avoiding repetitive labor and not affecting agricultural production. The utility model retracts or unfolds the insulation film around the greenhouse by rolling the film, which is simple and efficient to operate. While ensuring a good insulation effect, it saves manpower and improves production efficiency, which is of great significance to facility agricultural production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of a greenhouse insulation structure provided by an embodiment of the utility model installed on a multi-span steel frame greenhouse;

[0022] Figure 2 A schematic diagram of an end surface mounting portion provided by an embodiment of the utility model being installed on a crossbeam on an end surface of a greenhouse;

[0023] Figure 3 A schematic diagram of the insertion and fixation of adjacent film-rolling rods provided in an embodiment of the utility model.

[0024] In the figure: 01-column, 02-arch rod, 03-crossbeam of greenhouse end face, 1-top surface insulation layer, 2-end surface insulation film, 3-end surface mounting part, 301-first slot, 302-first retaining spring, 303-first hook, 4-end surface film rolling rod, 401-film rolling rod, 402-setting screw, 5-end surface film rolling device, 6-side film rolling device, 7-first film pressing line, 8-first ground nail, 9-temperature sensor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The purpose of the utility model is to provide a heat preservation structure in a greenhouse to solve the problems existing in the prior art. The heat preservation film around the greenhouse is rolled up or unfolded in a film-rolling manner. The operation is simple and efficient. While ensuring a good heat preservation effect, it saves manpower and improves production efficiency.

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] This embodiment provides a greenhouse insulation structure, such as Figure 1As shown, in this embodiment, this structure is applied to a multi-span steel frame greenhouse, wherein the multi-span steel frame greenhouse is constructed by conventional steel structures such as columns 01, arch rods 02, and beams. Technical personnel in this field can also apply this structure to glass greenhouses, etc. as needed; the greenhouse insulation structure provided in this embodiment includes an end surface insulation component, a side insulation component and a top surface insulation layer 1, and the end surface insulation component includes an end surface insulation film 2, an end surface mounting portion 3, an end surface film rolling rod 4 and an end surface film rolling device 5. The end surface insulation film 2 can be hung on the beam 03 of the end surface of the greenhouse through the end surface mounting portion 3, the end surface film rolling rod 4 is arranged on the side of the end surface insulation film 2 away from the end surface mounting portion 3, and the end surface film rolling device 5 is arranged at the end of the end surface film rolling rod 4, and can drive the end surface film rolling rod 4 to retract or unfold the end surface insulation Thermal film 2; the side insulation component includes a side insulation film, a side mounting portion, a side film rolling rod and a side film rolling device 6, the side insulation film can be hung on the crossbeam on the side of the greenhouse through the side mounting portion, the side film rolling rod is arranged on the side of the side insulation film away from the side mounting portion, the side film rolling device 6 is arranged at the end of the side film rolling rod, and can drive the side film rolling rod to retract or unfold the side insulation film; two groups of end surface insulation components are arranged, and the two groups of end surface insulation components are respectively arranged on the front end surface and the rear end surface of the greenhouse; two groups of side insulation components are arranged, and the two groups of side insulation components are respectively arranged on the left side and the right side of the greenhouse; the top surface insulation layer 1 is used to be laid on the top surface of the greenhouse, and the top surface insulation layer 1, the two groups of end surface insulation films 2 and the two groups of side insulation films can form a closed greenhouse insulation area.

[0029] When production is in winter, each group of end film rollers 5 drives the end film rolling rod 4 to unfold the end insulation film 2, and each group of side film rollers 6 drives the side film rolling rod to unfold the side insulation film, so as to achieve insulation of the greenhouse; when production is not in winter, each group of end film rollers 5 drives the end film rolling rod 4 to retract the end insulation film 2, and each group of side film rollers 6 drives the side film rolling rod to retract the side insulation film, so as to achieve the retraction of the insulation film around the greenhouse without manually removing the insulation film and supporting materials, which not only avoids repetitive labor but also does not affect agricultural production.

[0030] In this embodiment, if Figure 2As shown, the end surface mounting portion 3 includes a first clamping groove 301 and a first clamping spring 302. The first clamping groove 301 is bolted with a plurality of first hooks 303 (the size of the first hooks 303 matches the size of the cross beam 03 on the end surface of the greenhouse). All the first hooks 303 are evenly arranged along the length direction of the first clamping groove 301 so that the first clamping groove 301 can be fixed on the cross beam 03 on the end surface of the greenhouse; the first clamping spring 302 is used for the end surface thermal insulation film 2 to be wrapped and connected, and is clamped in the first clamping groove 301 to connect the end surface thermal insulation film 2 with the first clamping groove 301; during installation, first wrap one side of the end surface thermal insulation film 2 around the first clamping spring 302 for several turns, then clamp the first clamping spring 302 in the first clamping groove 301, and then, the first clamping groove 301 together with the end surface thermal insulation film 2 is hung and fixed on the cross beam 03 on the end surface of the greenhouse through the first clamping hook 303. The installation is simple and convenient, and the installation of the side thermal insulation film is similar.

[0031] In this embodiment, the side of the end surface insulation film 2 away from the first retaining spring 302 is wound and connected to the end surface film rolling rod 4, and is fixedly connected to the end surface film rolling rod 4 through multiple first buckles. The first buckles in this embodiment are preferably plastic buckles.

[0032] Furthermore, the end face insulation component also includes an end face film pressing part, which includes a first film pressing line 7 and a first ground nail 8. One end of the first film pressing line 7 can be fixed on the beam 03 of the end face of the greenhouse, and the other end can be fixed to the ground through the first ground nail 8. The end face film pressing part is provided with multiple groups. When the end face insulation film 2 is unfolded, all the first film pressing lines 7 can be evenly pressed on the outside of the end face insulation film 2, that is, on the outside of the end face insulation film 2, multiple first film pressing lines 7 are arranged at a certain interval. The first film pressing lines 7 in a tensioned state prevent the end face insulation film 2 from fluttering and causing heat loss in the greenhouse.

[0033] In this embodiment, the side mounting portion includes a second slot and a second retaining spring, and a plurality of second hooks are provided on the second slot (the size of the second hooks matches the size of the crossbeam on the side of the greenhouse), and all the second hooks are evenly arranged along the length direction of the second slot so that the second slot can be fixed on the crossbeam on the side of the greenhouse; the second retaining spring is used for the side insulation film to be wrapped and connected, and is clamped in the second slot to connect the side insulation film and the second slot.

[0034] In this embodiment, the side of the side insulation film away from the second retaining spring is wound and connected to the side film rolling rod, and is fixedly connected to the side film rolling rod through a plurality of second buckles. The second buckles in this embodiment are preferably plastic buckles.

[0035] Furthermore, the side insulation component also includes a side film pressing part, which includes a second film pressing line and a second ground nail. One end of the second film pressing line can be fixed on the beam on the side of the greenhouse, and the other end can be fixed to the ground through the second ground nail. There are multiple groups of side film pressing parts. When the side insulation film is unfolded, all the side film pressing parts can be evenly pressed on the outside of the side insulation film, that is, on the outside of the side insulation film, multiple second film pressing lines are arranged at a certain interval, and the tensioned second film pressing lines prevent the side insulation film from fluttering and causing heat loss in the greenhouse.

[0036] In this embodiment, in order to facilitate the staff to enter and exit the greenhouse insulation area, the end face insulation film 2 and the end face film rolling rod 4 of at least one group of end face insulation components are set as a segmented structure, that is, the end face insulation film 2 of at least one group of end face insulation components is a structure composed of multiple segments of insulation films, and the end face film rolling rod 4 is a structure composed of multiple segments of film rolling rods 401 that are detachably connected, and the insulation films and the film rolling rods 401 are set one by one.

[0037] Furthermore, if Figure 3 As shown, adjacent film-rolling rods 401 can be plugged in and connected, and the positions where adjacent film-rolling rods 401 are plugged in can be fixed by set screws 402 to prevent slipping.

[0038] After all sections of the film rolling rods 401 are connected and fixed, an end film rolling device 5 is used to roll up the multi-span thermal insulation film; when the staff needs to go in and out frequently, the sections of the film rolling rods 401 are disconnected, so that the end film rolling device 5 only rolls up the thermal insulation film of the side span, preventing the entire thermal insulation film from being rolled up over a large area and causing excessive heat loss in the greenhouse, thereby ensuring the convenience of the staff in managing the greenhouse and the good thermal insulation effect of the greenhouse to the greatest extent.

[0039] In this embodiment, the insulation structure in the greenhouse also includes a temperature sensor 9 and a controller. The temperature sensor 9, the end film roller 5 and the side film roller 6 are all electrically connected to the controller. The temperature sensor 9 is used to monitor the temperature in the insulation area of ​​the greenhouse, and the controller is used to control the start and stop of the end film roller 5 and the side film roller 6.

[0040] When the temperature sensor 9 detects that the temperature in the greenhouse insulation area is higher or lower than the set value, the controller will trigger the film roller to perform an action - automatically retract or unfold the corresponding insulation film, providing favorable temperature conditions for crop growth; when the two groups of end insulation films 2 and the two groups of side insulation films are unfolded (that is, the film rolling rods around the greenhouse are all located at the bottom of the greenhouse), a closed greenhouse insulation area is formed in cooperation with the top surface insulation layer 1 laid on the top surface of the greenhouse; when the two groups of end insulation films 2 and the two groups of side insulation films are retracted, the insulation films around the greenhouse are tightly wound around the corresponding film rolling rods and are all located in the upper part of the greenhouse, which will not cause adverse effects on the light required for crops, staff operation and management, etc., and also avoid repetitive labor such as manual film laying and unloading during seasons, saving manpower and improving production efficiency.

[0041] In this embodiment, the end film roller 5 and the side film roller 6 are both manual-automatic integrated film rollers, which can also be operated manually in the event of a power outage; the film roller is an existing mature technology, and its structure and working principle will not be described in detail here.

[0042] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A greenhouse insulation structure, characterized in that: The invention comprises an end surface heat-insulating component, a side surface heat-insulating component and a top surface heat-insulating layer, wherein the end surface heat-insulating component comprises an end surface heat-insulating film, an end surface mounting portion, an end surface film-rolling rod and an end surface film-rolling device, wherein the end surface heat-insulating film can be hung on the crossbeam of the end surface of the greenhouse through the end surface mounting portion, the end surface film-rolling rod is arranged on the side of the end surface heat-insulating film away from the end surface mounting portion, the end surface film-rolling device is arranged at the end of the end surface film-rolling rod and can drive the end surface film-rolling rod to retract or unfold the end surface heat-insulating film; the side surface heat-insulating component comprises a side surface heat-insulating film, a side surface mounting portion, a side surface film-rolling rod and a side surface film-rolling device, wherein the side surface heat-insulating film can be hung on the crossbeam of the end surface of the greenhouse through the side surface mounting portion On the side crossbeam, the side film rolling rod is arranged on the side of the side insulation film away from the side mounting portion, and the side film rolling device is arranged at the end of the side film rolling rod, and can drive the side film rolling rod to retract or unfold the side insulation film; the end surface insulation components are provided with two groups, and the two groups of end surface insulation components are respectively arranged on the front end surface and the rear end surface of the greenhouse; the side insulation components are provided with two groups, and the two groups of side insulation components are respectively arranged on the left side surface and the right side surface of the greenhouse; the top surface insulation layer is used to be laid on the top surface of the greenhouse, and the top surface insulation layer, the two groups of the end surface insulation films and the two groups of the side insulation films can form a closed greenhouse insulation area.

2. The greenhouse insulation structure according to claim 1, characterized in that: The end face mounting portion includes a first clamping groove and a first clamping spring. The first clamping groove is provided with a plurality of first clamping hooks, and all the first clamping hooks are evenly arranged along the length direction of the first clamping groove so that the first clamping groove can be fixed on the crossbeam of the end face of the greenhouse; the first clamping spring is used for the end face thermal insulation film to be wrapped and connected, and is clamped in the first clamping groove to connect the end face thermal insulation film and the first clamping groove.

3. The greenhouse insulation structure according to claim 2, characterized in that: The end surface thermal insulation film is wound and connected to the end surface film rolling rod at one side away from the first clamping spring, and is fixedly connected to the end surface film rolling rod through a plurality of first buckles.

4. The greenhouse thermal insulation structure according to claim 1, characterized in that: The side mounting portion includes a second slot and a second retaining spring, and the second slot is provided with a plurality of second hooks, and all the second hooks are evenly arranged along the length direction of the second slot so that the second slot can be fixed on the crossbeam on the side of the greenhouse; the second retaining spring is used for the side insulation film to be wrapped and connected, and is clamped in the second slot to connect the side insulation film and the second slot.

5. The greenhouse thermal insulation structure according to claim 4, characterized in that: The side of the side insulation film away from the second clamping spring is wound and connected to the side film rolling rod, and is fixedly connected to the side film rolling rod through a plurality of second buckles.

6. The greenhouse thermal insulation structure according to claim 1, characterized in that: The end surface insulation film of at least one group of the end surface insulation components is a structure formed by splicing multiple sections of insulation films, and the end surface film rolling rod is a structure formed by detachably connecting multiple sections of film rolling rods, and the insulation films are arranged in a one-to-one correspondence with the film rolling rods.

7. The greenhouse thermal insulation structure according to claim 6, characterized in that: The adjacent film-rolling rods can be plug-connected, and the positions where the adjacent film-rolling rods are plugged in can be fixed by set screws.

8. The greenhouse thermal insulation structure according to claim 1, characterized in that: The end face insulation component also includes an end face film pressing part, which includes a first film pressing line and a first ground nail. One end of the first film pressing line can be fixed on the beam of the end face of the greenhouse, and the other end can be fixed to the ground through the first ground nail. The end face film pressing part is provided with multiple groups. When the end face insulation film is unfolded, all the first film pressing lines can be evenly pressed on the outside of the end face insulation film; the side insulation component also includes a side film pressing part, which includes a second film pressing line and a second ground nail. One end of the second film pressing line can be fixed on the beam of the side face of the greenhouse, and the other end can be fixed to the ground through the second ground nail. The side film pressing part is provided with multiple groups. When the side insulation film is unfolded, all the second film pressing lines can be evenly pressed on the outside of the side insulation film.

9. The greenhouse thermal insulation structure according to claim 1, characterized in that: The heat preservation structure in the greenhouse also includes a temperature sensor and a controller. The temperature sensor, the end film roller and the side film roller are all electrically connected to the controller. The temperature sensor is used to monitor the temperature in the heat preservation area of ​​the greenhouse, and the controller is used to control the start and stop of the end film roller and the side film roller.

10. The greenhouse thermal insulation structure according to claim 1, characterized in that: The end film rolling machine and the side film rolling machine are both manual-automatic integrated film rolling machines.

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