Automatic consumable boxing equipment

Abstract

The utility model discloses automatic consumable boxing equipment, which comprises a consumable bearing assembly, a variable pitch assembly, a boxing mechanism and an area detection device, the consumable bearing assembly comprises a plurality of bearing parts arranged along a first direction, and each bearing part is provided with a plurality of bearing positions which are distributed along a second direction and are used for bearing consumables; the first direction is perpendicular to the second direction. The distance changing assembly is connected with the consumable bearing assembly and used for changing the distance between the adjacent consumables on the adjacent bearing pieces in the first direction. And the boxing mechanism is used for boxing the multiple consumables after distance changing. The area detection device is arranged beside the bearing pieces and used for detecting whether consumables exist at the positions of the bearing pieces or not. According to the automatic boxing equipment for the consumables, the boxing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of cartoning equipment technology, and in particular to an automatic cartoning equipment for consumables. Background Technology

[0002] When consumables need to be repackaged, the processed consumables are usually collected together. The operator then manually sorts the collected consumables and packs them into the packaging boxes according to the spacing requirements within the packaging boxes.

[0003] However, the manual packaging of consumables and the manual control of the spacing between consumables result in operators wasting a lot of time and having low packaging efficiency.

[0004] Therefore, how to improve boxing efficiency is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide an automatic boxing device for consumables to improve boxing efficiency.

[0006] The automatic cartoning equipment for consumables provided in this application includes:

[0007] A consumable carrying assembly includes a plurality of carrying members arranged along a first direction, each carrying member having a plurality of carrying positions distributed along a second direction for carrying consumables, the first direction and the second direction being perpendicular to each other;

[0008] A pitch-changing assembly, which is connected to the consumable carrier assembly, is used to change the spacing between adjacent consumables on adjacent carrier components along a first direction;

[0009] A boxing mechanism, which is used to box multiple consumables after the pitch change;

[0010] A region detection device is disposed on the side of the carrier and is used to detect whether consumables are present at multiple locations of the carrier.

[0011] Optionally, in the above-mentioned automatic consumable packaging equipment, the area detection device includes a transmitter and a receiver for receiving signals from the transmitter. The transmitter and the receiver are located at opposite ends of the consumable storage space formed by all the carriers, and the coverage area of ​​the transmitter includes the consumable storage space.

[0012] Optionally, in the above-mentioned automatic cartoning equipment for consumables, the pitch-changing component includes:

[0013] Telescopic cylinder;

[0014] A sliding module includes multiple sliding plates arranged sequentially along the direction of the carrier members. The carrier members are formed at the upper end of the sliding plates, and the carrier positions are disposed on the sliding plates. Adjacent sliding plates are slidably connected sequentially through independently provided connectors. A telescopic cylinder is fixedly connected to a sliding plate at one end of the sliding module to drive all the sliding plates to slide.

[0015] The limiting block and the telescopic cylinder are located on opposite sides of the sliding module along the arrangement direction of the sliding plate. When the pitch-changing component changes pitch, the telescopic cylinder extends to push the sliding module to abut against the limiting block.

[0016] Optionally, the above-mentioned automatic consumable packaging equipment also includes a consumable receiving space disposed below the carrier for receiving consumables that are not loaded into the carrier.

[0017] Optionally, in the above-mentioned automatic packaging equipment for consumables, the sliding plate forms a hollow U-shaped structure, and when two adjacent sliding plates abut, the corresponding adjacent bearing members on the two adjacent sliding plates change distance and are in place.

[0018] Projected from top to bottom, all the bearing positions on the sliding plates are located within the projection range of the consumable accommodating space.

[0019] Optionally, the above-mentioned automatic consumable packaging equipment also includes a consumable container, which passes through the hollow part of the U-shaped structure and is located in the consumable storage space. The top of the consumable container is open and faces the carrier, and is used to receive consumables that are not loaded into the carrier.

[0020] Optionally, the above-mentioned automatic consumable packaging equipment further includes a box detection device for detecting whether the consumable container is installed in the consumable storage space. The consumable container has a drawer-type structure and can be pulled out of the consumable storage space.

[0021] Optionally, the above-mentioned automatic consumable boxing equipment also includes a support frame, and the box detection device and the consumable container are both installed on the support frame. The box detection device is used to detect the distance between the drawer end of the consumable container and the support frame.

[0022] Optionally, the above-mentioned automatic consumable packaging equipment further includes a support frame and a box connecting device. The box connecting device and the consumable container are both installed on the support frame, and the box connecting device is used for detachable connection between the consumable container and the support frame.

[0023] Optionally, in the above-mentioned automatic consumable boxing equipment, the box connecting device includes a magnetic suction device, and the support frame and the consumable container are connected by the magnetic suction device; the magnetic suction device is disposed between the support frame and the drawer end of the consumable container.

[0024] Optionally, the above-mentioned automatic consumable packaging equipment also includes a protective cover, which is disposed on the outer periphery of the variable pitch structure, and the protective cover is provided with an opening above the carrier for the consumable to enter and exit.

[0025] In the above technical solution, the automatic consumable packaging equipment provided by this utility model includes a consumable carrying component, a pitch-changing component, a packaging mechanism, and a region detection device. The consumable carrying component includes multiple carrier members arranged along a first direction, and each carrier member is provided with multiple carrier positions distributed along a second direction for carrying consumables. The first and second directions are perpendicular. The pitch-changing component is connected to the consumable carrying component and is used to change the spacing between adjacent consumables on adjacent carrier members along the first direction. The packaging mechanism is used to package the multiple consumables after pitch change. The region detection device is located beside the carrier members and is used to detect whether consumables are present at the positions of the multiple carrier members. When the automatic consumable packaging equipment is needed, the region detection device first detects whether consumables are present at the positions of the carrier members. If so, the consumables are removed; otherwise, they are placed in the preset positions of the carrier members. Then, the pitch-changing component changes the spacing between adjacent consumables within adjacent carrier members. After the pitch change is completed, the packaging mechanism packages the multiple consumables after pitch change.

[0026] As described above, the automatic consumable boxing equipment provided in this application uses a zone detection device to detect the presence of consumables at the carrier position, avoiding conflicts between consumables at the carrier position and subsequently installed consumables when they are not uniformly installed at the carrier position. A pitch-changing component uniformly adjusts the spacing of the consumables to meet the boxing requirements. By using a boxing mechanism to box the consumables, the automatic consumable boxing equipment provided in this application improves boxing efficiency compared to manual boxing by an operator. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of the automatic consumable packaging equipment provided in an embodiment of the present utility model;

[0029] Figure 2 for Figure 1 The diagram shows the structure of the automatic consumable packaging equipment along the AA direction;

[0030] Figure 3 for Figure 1 Enlarged view of section B of the automatic consumables boxing equipment shown;

[0031] Figure 4 This is a front view of the position of the pitch component provided in an embodiment of the present invention;

[0032] Figure 5 A top view showing the position of the pitch component provided in an embodiment of this utility model;

[0033] Figure 6 A three-dimensional structural diagram of the second suction member provided in an embodiment of this utility model;

[0034] Figure 7 This is a front view of the second suction member provided in an embodiment of the present utility model;

[0035] Figure 8 A top view of the second suction member provided in an embodiment of the present utility model;

[0036] Figure 9 This is a side view of the second suction member provided in an embodiment of the present utility model.

[0037] in Figure 1-9 middle:

[0038] 1-Variable pitch assembly, 101-Telescopic cylinder, 102-Sliding plate, 103-Limit block, 104-Connector, 105-Guide rail;

[0039] 2-Consumables storage box, 201-Drawer end, 202-Handle, 203-Drawer head;

[0040] 3-Area detection device, 301-Transmitter, 302-Receiver, 303-Fiber optic amplifier;

[0041] 4-Protective cover, 5-Matrix sensor, 6-Transverse movement module, 8-Box detection device, 9-Support frame;

[0042] 10-Box body connecting device, 1001-First suction component, 1002-Second suction component, 1003-Positioning cavity;

[0043] 11-Bearing component;

[0044] 12-Slot-type photoelectric;

[0045] 13-Materials. Detailed Implementation

[0046] The core of this utility model is to provide an automatic boxing device for consumables to improve boxing efficiency.

[0047] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0048] Please refer to Figures 1 to 9 .

[0049] In one specific embodiment, the automatic consumable packaging equipment provided by this utility model includes a consumable carrying component, a pitch-changing component 1, a packaging mechanism, and a region detection device 3. The consumable carrying component includes multiple carrying members 11 arranged along a first direction. Each carrying member 11 is provided with multiple carrying positions distributed along a second direction for carrying consumables. The number of carrying positions on each carrying member 11 is equivalent to the number of rows of consumables 13, and there is a one-to-one correspondence between the consumables 13 and the carrying positions. The number of carrying members 11 needs to be equivalent to the number of rows of consumables 13 they carry. For example, when the consumables 13 are arranged in eight rows, there are eight carrying members 11. The consumables 13 can be the nozzles of medical devices.

[0050] The first direction and the second direction are perpendicular. To facilitate the placement of material 13, preferably, both the first direction and the second direction extend horizontally.

[0051] The pitch-changing assembly 1 is connected to the consumable carrier assembly and is used to change the spacing between adjacent consumables on adjacent carriers 11 along the first direction. Through the pitch-changing assembly 1, the material 13 with the changed pitch meets the spacing requirements for subsequent boxing or assembly. Specifically, the pitch-changing assembly 1 can drive the carrier assembly to move via a linear motor.

[0052] The boxing mechanism is used to box multiple consumables after the pitch change. Specifically, the boxing mechanism can be a robotic arm equipped with a suction nozzle. After the consumables are pitched, they are sucked out by the suction nozzle for boxing.

[0053] The area detection device 3 is located beside the support member 11 and is used to detect whether consumables are present at multiple locations of the support member 11. Specifically, the area detection device 3 can perform detection by light; for example, the area detection device 3 is a matrix sensor 5.

[0054] In one specific embodiment, the area detection device 3 includes a transmitting unit 301 and a receiving unit 302 for receiving signals from the transmitting unit 301. The transmitting unit 301 and the receiving unit 302 are disposed at opposite ends of the consumable accommodating space formed by all the carrier members 11, and the coverage area of ​​the transmitting unit 301 includes the consumable accommodating space. To facilitate detection of the entire material 13 area, preferably, at least two transmitting units 301 and at least two receiving units 302 are provided, and the transmitting units 301 and at least two receiving units 302 correspond one-to-one along a first direction.

[0055] Specifically, of course, the transmitter 301 and receiver 302 can also be arranged along the second direction.

[0056] In one specific embodiment, the transmitting unit 301 and the receiving unit 302 are connected to the fiber optic amplifier 303 to amplify the signal. The area detection device 3 is connected to the control module, and the control module is connected to the alarm module. If the gun head is not removed, the area detection device 3 identifies the transmitted signal value and controls the control module to trigger an alarm. At this time, the vehicle stops moving to prevent the risk of collision.

[0057] When the automatic consumable packaging equipment is needed, the area detection device 3 first detects whether there are consumables at the position of the carrier 11. If there are, the consumables are removed; otherwise, they are placed in the preset position on the carrier 11. Then, the spacing between adjacent consumables on adjacent carriers 11 is changed by the pitch-changing component 1. After the pitch is changed, the packaging mechanism packages the multiple consumables after the pitch change into boxes.

[0058] As described above, in the automatic consumable boxing equipment provided in the specific embodiments of this application, the area detection device 3 detects whether consumables exist at the position of the carrier 11, avoiding conflicts between consumables at the carrier 11 position and subsequently installed consumables when consumables are not uniformly installed at the carrier 11 position. The spacing of the consumables is uniformly changed to meet the boxing requirements by the pitch-changing component 1. The automatic consumable boxing equipment provided in this application improves boxing efficiency compared to manual boxing by an operator.

[0059] In one specific embodiment, the pitch-changing assembly 1 includes a telescopic cylinder 101, a sliding module, and a limiting block 103. Specifically, the telescopic cylinder 101 can be a hydraulic cylinder or a pneumatic cylinder, for example, a rodless pneumatic cylinder. The sliding module includes multiple sliding plates 102, which are arranged sequentially along the arrangement direction of the support member 11. The support member 11 is formed at the upper end of the sliding plate 102, and a support position is provided on the sliding plate 102. Specifically, the support position can be a material mounting hole provided on the sliding plate 102. To enable each sliding plate 102 to slide smoothly, a guide rail 105 is also included, which is provided at the bottom end of the sliding plate 102 and slides in cooperation with the sliding plate 102. Preferably, two guide rails 105 are arranged parallel to each other along the second direction.

[0060] Adjacent sliding plates 102 are slidably connected in sequence by independently provided connectors 104. Specifically, the rod of the connector 104 is slidably connected to the sliding plate 102, and the end of the rod is provided with a limiting block 103 that abuts against the sliding plate 102. When the limiting block 103 abuts against the sliding plate 102, it drives the sliding plate 102 to slide.

[0061] The telescopic cylinder 101 is fixedly connected to the sliding plate 102 at one end of the sliding module to drive all the sliding plates 102 to slide. Specifically, the automatic consumable boxing equipment also includes slotted photoelectric sensors 12. Two slotted photoelectric sensors 12 are provided. The slotted photoelectric sensors 12 are connected to the telescopic cylinder 101. The sliding plate 102, which is fixedly connected to the telescopic cylinder 101, is located between the two slotted photoelectric sensors 12. When the sliding plate 102 touches the slotted photoelectric sensor 12, the sliding module changes pitch to the correct position or returns to its initial working position, and the telescopic cylinder 101 stops working.

[0062] The limiting block 103 and the telescopic cylinder 101 are located on opposite sides of the sliding module along the arrangement direction of the sliding plate 102. When the pitch-changing component 1 changes pitch, the telescopic cylinder 101 extends and pushes the sliding module to abut against the limiting block 103. Specifically, two limiting blocks 103 can be provided, and the two limiting blocks 103 are respectively located on opposite sides of the sliding module in the first direction. When the sliding plate 102 abuts against the limiting block 103, the corresponding sliding plate 102 no longer slides.

[0063] Considering that consumables may fall during installation and subsequent removal, the automatic consumable boxing equipment also includes a consumable holding space located below the carrier 11. This space receives consumables that are not placed inside the carrier 11. After a period of use, consumables that have fallen into the consumable holding space can be removed. The volume of the consumable holding space can be set as needed. To facilitate the removal of the consumables 13, the bottom wall of the consumable holding space is angled downwards towards the outlet, allowing staff to remove fallen consumables from the outlet.

[0064] In one specific embodiment, the sliding plate 102 forms a hollow U-shaped structure. When two adjacent sliding plates 102 abut, the corresponding adjacent bearing members 11 on the two adjacent sliding plates 102 are adjusted to their positions, that is, when the two adjacent sliding plates 102 abut, the material 13 on the sliding plate 102 is adjusted to its position. By forming the sliding plate 102 into a hollow U-shaped structure, the overall sliding stability of the sliding plate 102 is improved.

[0065] Projected from top to bottom, the bearing positions on all sliding plates 102 are located within the projection range of the consumable storage space. This arrangement facilitates the consumable storage space in accommodating consumables that fall from each sliding plate 102, thereby preventing consumables from falling to other positions and interfering with the normal operation of the equipment.

[0066] In one specific embodiment, the automatic consumable packaging equipment further includes a consumable container 2, which passes through the hollow part of the U-shaped structure and is located in the consumable storage space. The top of the consumable container 2 is open and directly opposite the carrier 11, for receiving consumables that are not loaded into the carrier 11. Simultaneously, the consumable container 2 prevents materials 13 from falling into the guide rail 105 through the gaps, thus preventing jamming due to pitch variation.

[0067] In one specific embodiment, the automatic consumable packaging equipment further includes a box detection device 8, which is used to detect whether the consumable container 2 is installed in the consumable storage space. The consumable container 2 has a drawer-type structure and can be pulled out of the consumable storage space. For ease of pulling out, preferably, a handle 202 is provided at the drawer head 203 of the consumable container 2.

[0068] Specifically, the consumables container 2 can be a rectangular box structure with an opening at the top.

[0069] In one specific embodiment, the automatic consumable packaging equipment further includes a support frame 9, and the box detection device 8 and the consumable container 2 are both mounted on the support frame 9. Specifically, the consumable container 2 is detachably connected to the support frame 9, and specifically, the consumable container 2 is slidably disposed on the support frame 9.

[0070] The box detection device 8 is used to detect the distance between the drawer end 201 of the consumable container 2 and the support frame 9. Specifically, the box detection device 8 can be a distance detection device. For example, when the distance between the drawer end 201 and the support frame 9 is less than or equal to a preset value, it indicates that the consumable container 2 is installed in place.

[0071] The box detection device 8 can also be connected to the alarm device and the whole machine control device. When the whole machine control device controls the automatic consumable boxing equipment to work, if the distance between the drawer tail 201 and the support frame 9 is greater than the preset value, the alarm device will be controlled to sound an alarm, thereby providing staff with information to check whether the consumable container box 2 is installed and whether the consumable container box 2 is installed in place.

[0072] Of course, the guide rail 105 and the slotted photoelectric sensor 12 can also be installed on the support frame 9 to improve the integration effect of the automatic consumable packaging equipment.

[0073] In one specific embodiment, the automatic consumable packaging equipment further includes a box body connecting device 10. Both the box body connecting device 10 and the consumable container 2 are mounted on the support frame 9. The box body connecting device 10 is used for a detachable connection between the consumable container 2 and the support frame 9. Specifically, the box body connecting device 10 can be a snap-fit. During use, the snap-fit ​​is engaged, and the consumable container 2 is engaged with the support frame 9. When it is necessary to disassemble the consumable container 2, the snap-fit ​​is disassembled, and the consumable container 2 can be pulled out.

[0074] In one specific embodiment, the box connecting device 10 includes a magnetic attraction device, and the support frame 9 and the box connecting device 10 are connected by the magnetic attraction device; the magnetic attraction device is disposed between the support frame 9 and the drawer end 201 of the consumable container 2. The connection between the support frame 9 and the box connecting device 10 is achieved by the magnetic attraction device, which is simple to operate and does not require personnel to operate the box connecting device 10.

[0075] Specifically, the magnetic attraction device includes a first attraction member 1001 and a second attraction member 1002 capable of engaging with the first attraction member 1001, wherein at least one of the first attraction member 1001 and the second attraction member 1002 is a magnet. In arrangement, one of the first attraction member 1001 and the second attraction member 1002 is mounted on the support frame 9, and the other is mounted on the consumable storage box 2. To facilitate positioning of the consumable storage box 2, one of the first attraction member 1001 and the second attraction member 1002 is provided with a positioning cavity 1003, and the other is provided with a positioning post inserted into the positioning cavity 1003. When the first attraction member 1001 and the second attraction member 1002 engage, the positioning post is inserted into the positioning cavity 1003.

[0076] To facilitate the sliding of the positioning pin into the positioning cavity 1003, the opening of the positioning cavity 1003 forms an outwardly expanding guide surface.

[0077] In one specific embodiment, the automatic consumable packaging equipment further includes a protective cover 4, which covers the outer periphery of the variable-pitch structure. The protective cover 4 has an opening above the support member 11 for the consumables to enter and exit. To facilitate observation of the internal working conditions, the protective cover 4 is preferably a transparent protective cover, for example, made of glass or transparent plastic.

[0078] To facilitate understanding, the working principle and process are explained below using a specific implementation method: After the automatic consumable packaging equipment receives the material 13, the pitch-changing component 1 changes pitch, and the leverless cylinder pulls the sliding plate 102 to one side, stopping when it touches the limit block 103. At this time, adjacent sliding plates 102 abut against each other, and the distance between adjacent materials 13 along the first direction is a preset 9mm. Then, the automatic consumable packaging equipment can be pushed to the filter cartridge pressing station by the transverse module 6. Specifically, the transverse module 6 includes a slide rail, and the support frame 9 is installed on the slide rail.

[0079] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0080] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic boxing device for consumables, characterized in that, include: The consumable carrying assembly includes a plurality of carrying members (11) arranged along a first direction, each of the carrying members (11) being provided with a plurality of carrying positions distributed along a second direction for carrying consumables, the first direction and the second direction being perpendicular; A pitch-changing assembly (1) is connected to the consumable carrier assembly and is used to change the spacing of adjacent consumables on adjacent carriers (11) along a first direction; A boxing mechanism, which is used to box multiple consumables after the pitch change; A region detection device (3) is disposed on the side of the carrier (11) and is used to detect whether there are consumables at the positions of multiple carriers (11).

2. The automatic consumable packaging equipment according to claim 1, characterized in that, The area detection device (3) includes a transmitter (301) and a receiver (302) for receiving signals from the transmitter (301). The transmitter (301) and the receiver (302) are disposed at opposite ends of the consumable storage space formed by all the carriers (11). The coverage area of ​​the transmitter (301) includes the consumable storage space.

3. The automatic consumable packaging equipment according to claim 1, characterized in that, The pitch control assembly (1) includes: Telescopic cylinder (101); A sliding module includes multiple sliding plates (102) arranged sequentially along the arrangement direction of the support member (11). The support member (11) is formed at the upper end of each sliding plate (102), and the support position is set on the sliding plate (102). Adjacent sliding plates (102) are sequentially slidably connected by independently provided connectors (104). The telescopic cylinder (101) is fixedly connected to the sliding plate (102) at one end of the sliding module to drive all the sliding plates (102) to slide. The limiting block (103) and the telescopic cylinder (101) are located on opposite sides of the sliding module along the arrangement direction of the sliding plate (102). When the pitch-changing component (1) changes pitch, the telescopic cylinder (101) extends to push the sliding module to abut against the limiting block (103).

4. The automatic consumable packaging equipment according to claim 3, characterized in that, It also includes a consumable accommodating space disposed below the carrier (11) for receiving consumables not loaded into the carrier (11).

5. The automatic consumable packaging equipment according to claim 4, characterized in that, The sliding plate (102) forms a hollow square structure. When two adjacent sliding plates (102) abut, the corresponding adjacent bearing members (11) on the two adjacent sliding plates (102) change distance and are in place. Projected from top to bottom, all the bearing positions on the sliding plates (102) are located within the projection range of the consumable accommodating space.

6. The automatic consumable packaging equipment according to claim 5, characterized in that, It also includes a consumable container (2), which passes through the hollow part of the U-shaped structure. The consumable container (2) is located in the consumable storage space. The top of the consumable container (2) is open and faces the carrier (11) to receive consumables that are not installed in the carrier (11).

7. The automatic consumable packaging equipment according to claim 6, characterized in that, It also includes a box detection device (8) for detecting whether the consumable container (2) is installed in the consumable storage space. The consumable container (2) has a drawer-type structure and can be pulled out of the consumable storage space.

8. The automatic consumable packaging equipment according to claim 7, characterized in that, It also includes a support frame (9), the box detection device (8) and the consumable container (2) are both installed on the support frame (9), and the box detection device (8) is used to detect the distance between the drawer end (201) of the consumable container (2) and the support frame (9).

9. The automatic consumable packaging equipment according to claim 6, characterized in that, It also includes a support frame (9) and a box connecting device (10). The box connecting device (10) and the consumable container (2) are both installed on the support frame (9). The box connecting device (10) is used for the consumable container (2) to be detachably connected to the support frame (9).

10. The automatic consumable packaging equipment according to claim 9, characterized in that, The box connection device (10) includes a magnetic suction device, and the support frame (9) and the consumable container (2) are connected by the magnetic suction device; the magnetic suction device is disposed between the drawer end (201) of the support frame (9) and the consumable container (2).

11. The automatic cartoning equipment for consumables according to claim 1, characterized in that, It also includes a protective cover (4), which covers the outer periphery of the pitch assembly (1), and the protective cover (4) is provided with an opening for consumables to enter and exit above the support member (11).

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