Flaring positioning mechanism for carton loading

Abstract

The utility model relates to a flaring positioning mechanism for carton loading, which comprises a support base (9) and a mechanism body (1) supported by the support base, the mechanism body comprises a pair of body half parts which are opposite to each other and spaced apart from each other, and a carton to be loaded is received in an accommodating space (S) between the body half parts. The mechanism body is provided with a roller line (7) and at least one positioning assembly (6), wherein the roller line (7) is constructed to be used for receiving and conveying cartons to be loaded in the containing space, and the positioning assembly (6) is constructed to be used for positioning the cartons received and conveyed by the roller line in the containing space. And at least one flaring assembly (5) configured for flaring the top opening of the carton positioned by the positioning assembly. The flaring positioning mechanism for carton loading is simple in structure, practical and convenient to operate and capable of conveniently conducting positioning operation on a carton and conducting flaring operation on the top of the carton, improves boxing efficiency and reduces boxing faults.

Description

Technical Field

[0001] The utility model relates to the field of carton loading, and more specifically, to a carton loading expansion positioning mechanism. Background Art

[0002] In production processes that require carton loading, the existing packing method is usually manual packing, which has a low degree of automation, low packing efficiency and high labor costs, which has an adverse impact on the actual production process. Taking the packing of cigarette cartons as an example, after the cigarette rods come out of the rolling and packaging machine, they are delivered to the manual cigarette picking platform through a slideway through a belt conveyor, a blocking mechanism, a cigarette pushing mechanism, etc. At the cigarette picking platform, it is necessary to manually position the carton, open the carton, and then put the sorted cigarette rods into the carton in order and arrange them neatly. The process of manually positioning the carton and opening the carton is cumbersome and time-consuming, resulting in low loading efficiency.

[0003] To this end, carton loading technology needs to be improved. Utility Model Content

[0004] In order to solve at least one of the above problems existing in the prior art, the applicant has proposed and developed a new expansion and positioning mechanism for carton loading.

[0005] According to the utility model, the expansion and positioning mechanism for carton loading includes a support base and a mechanism body supported by the support base, characterized in that the mechanism body includes a pair of body halves that are opposite to each other and spaced from each other, the carton to be loaded is received in the storage space between the pair of body halves, and a roller line configured to receive and transmit the carton to be loaded in the storage space, at least one positioning assembly configured to position the carton received and transmitted by the roller line in the storage space, and at least one expansion assembly configured to expand the top opening of the carton positioned by the positioning assembly is arranged on the mechanism body. According to the utility model, the expansion and positioning mechanism for carton loading has a simple structure, is practical and convenient to operate, and can conveniently perform positioning operations on the carton and expansion operations on the top of the carton. As a result, the cigarette strips can be conveniently and quickly stacked neatly inside the carton that has been positioned and expanded. When the carton is accurately positioned and expanded, the packing efficiency of the robot can be greatly improved, the failures in the packing process can be reduced, and the scratches on the cigarette strips can be reduced as much as possible.

[0006] According to a preferred embodiment, the positioning assembly includes a first positioning frame, a first positioning rod supporting the first positioning frame, a second positioning frame, and a second positioning rod supporting the second positioning frame. The first positioning frame and the second positioning frame are arranged opposite to each other and are configured to abut and clamp the outer side of the carton.

[0007] According to a preferred embodiment, in the accommodation space between the pair of body halves, the first positioning frame and the first positioning rod are arranged on one of the pair of body halves, and the second positioning frame and the second positioning rod are arranged on the other of the pair of body halves.

[0008] According to a preferred embodiment, at least one of the first positioning rod and the second positioning rod can be telescopic relative to each other, thereby being able to clamp the carton between the first positioning frame and the second positioning frame and thereby position the carton according to the specific size of the carton.

[0009] According to a preferred embodiment, the first positioning frame is connected to the first positioning rod by bolts, and the second positioning frame is connected to the second positioning rod by bolts. This connection method is simple and convenient.

[0010] According to a preferred embodiment, at least one of the first positioning frame and the second positioning frame is an L-shaped positioning frame, thereby facilitating a more stable clamping of the corner of the carton from the outside of the carton.

[0011] According to a preferred embodiment, the expansion assembly includes an expansion frame configured to extend to the inside of the carton and abut against one of the corners of the carton, and an expansion adjustment rod configured to adjust the position of the expansion frame, wherein the expansion adjustment rod is configured to be pivotable.

[0012] According to a preferred embodiment, the flaring assembly further comprises a flaring base and a flaring adjuster, the flaring adjuster is pivotally arranged on the flaring base, and the flaring adjustment rod is pivotally connected to the flaring adjuster. The pivotable flaring adjustment rod and the flaring adjuster can be used together to adjust the position of the flaring frame.

[0013] According to a preferred embodiment, the flaring regulator is connected to the flaring base by bolts, and the flaring regulator is connected to the flaring adjustment rod by bolts. This connection method is simple and convenient.

[0014] According to a preferred embodiment, the expansion frame is an L-shaped component. Thus, the expansion frame can better abut against the right-angle corner of the carton.

[0015] According to a preferred embodiment, the expansion and positioning mechanism for loading a carton further comprises a dust suction mechanism disposed on one of the pair of body halves, the dust suction mechanism being provided with a dust suction pipe configured to extend into the carton for dust suction operations.

[0016] According to a preferred embodiment, the dust collection mechanism further includes a positioning cylinder, a telescopic rod, a compressor and a dust collection box, wherein the positioning cylinder is arranged on the half of the body, the telescopic rod is telescopically arranged between the positioning cylinder and the compressor, the dust collection box is arranged at the end of the compressor, and the dust collection pipe is arranged at the bottom of the dust collection box in communication with the dust collection box. This dust collection mechanism is also called an adjustable dust collection mechanism.

[0017] According to a preferred embodiment, one of the pair of body halves of the mechanism body is further provided with an observation window configured to observe the accommodation space inside the mechanism body, thereby facilitating manual visual inspection of the operation of the expansion and positioning mechanism for carton loading.

[0018] According to a preferred embodiment, the expansion and positioning mechanism for carton loading is provided with four expansion assemblies, two of which are arranged on the top of each body half.

[0019] Further features of the present invention will become apparent from the following description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will now be described in detail below with reference to the accompanying drawings. It should be understood that the drawings are not necessarily drawn to scale; in addition, for ease of illustration, components shown in a particular drawing may be omitted in other views. The accompanying drawings are only used to illustrate exemplary embodiments of the present invention and should not be considered as limiting the scope of the present invention. In the accompanying drawings:

[0021] Figure 1 The utility model is a schematic diagram of the overall structure of the expansion positioning mechanism for carton loading.

[0022] Figure 2 The utility model is a side view of the expansion positioning mechanism for carton loading.

[0023] Figure 3 It is a front view of the expansion positioning mechanism for carton loading according to the utility model.

[0024] Figure 4 It is a top view of the expansion positioning mechanism for carton loading according to the utility model.

[0025] Figure 5 It is an enlarged view of the B portion of the expansion positioning mechanism for carton loading according to the utility model.

[0026] Figure 6 It is an enlarged view of the A part of the expansion positioning mechanism for carton loading according to the utility model.

[0027] Figure 7 The utility model is a schematic structural diagram of an adjustable dust collecting mechanism in a carton loading expansion positioning mechanism.

[0028] List of reference numerals:

[0029] 1——Mechanism body; 2——Dust collection mechanism; 3——Clamping mechanism;

[0030] 4——Clamp connecting rod; 5——Expansion assembly; 6——Positioning assembly;

[0031] 7——Drum line; 8——Observation window; 9——Support base;

[0032] 10——first positioning frame; 11——first positioning rod; 12——second positioning frame;

[0033] 13——second positioning rod; 14——expansion frame; 15——expansion adjustment rod;

[0034] 16——Expansion base; 17——Expansion regulator; 18——Positioning cylinder;

[0035] 19——telescopic rod; 20——compressor; 21——dust collection box;

[0036] 22——Dust suction pipe; S——Accommodation space DETAILED DESCRIPTION

[0037] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative and is in no way intended to limit the present disclosure and its application or use. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present disclosure thorough and complete and to fully express the scope of the present disclosure to those skilled in the art. Based on the embodiments in the present utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present utility model. If the specific conditions are not specified in the embodiments, they shall be carried out under normal conditions or conditions recommended by the manufacturer. The instruments used without indicating the manufacturer are all conventional products that can be purchased commercially.

[0038] In the present disclosure, it should be noted that the relative arrangements of components and steps, components of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely illustrative rather than limiting unless specifically stated otherwise.

[0039] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] All terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as those understood by ordinary technicians in the field to which the present disclosure belongs, unless otherwise specified. It should also be understood that terms defined in general dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0042] Technologies, methods, and apparatuses known to ordinary technicians in the relevant art or irrelevant to the inventive points of this application may not be discussed in detail, but where appropriate, the technologies, methods, and apparatuses should be considered as part of the specification.

[0043] The following will refer to Figures 1 to 7 , describing the specific structure of the expansion and positioning mechanism for carton loading. The following description will be made by taking a common carton with four right-angled corners as an example. Note that before the carton is conveyed to the expansion and positioning mechanism for carton loading, multiple sealing flaps (for example, four sealing flaps are common) at the top opening of the carton have been opened outward in an upstream process, so that the top opening of the carton is open. The specific structure of the carton is well known in the carton field and will not be described in detail here.

[0044] like Figure 1 As shown, the expansion and positioning mechanism for carton loading as a whole includes a mechanism body 1 and a support base 9 provided at the bottom of the mechanism body 1. The support base 9 is configured to support the mechanism body 1. As a non-limiting example, the mechanism body 1 may include a pair of body halves that are opposite to each other and spaced apart from each other, and a receiving space S is defined between the pair of body halves. The carton to be loaded will be received in the receiving space S.

[0045] On the mechanism body 1, a roller line 7 configured to receive and convey cartons to be loaded in the accommodating space S may be provided. Figure 1 , 4 The roller line 7 is a well-known term in the field of cigarette packaging, and is a conveying mechanism for conveying cartons to be loaded. Preferably, the roller line 7 can be arranged at the approximate bottom of the mechanism body 1 in the accommodating space S. However, other arrangement positions are also feasible.

[0046] On the mechanism body 1, at least one positioning component 6 configured to position the cartons received and conveyed by the roller line 7 in the accommodation space S may also be provided. Figure 1 , 2 , 5. Preferably, the positioning assembly 6 can be arranged at a substantially middle portion of the mechanism body 1 in the accommodation space S. However, other arrangement positions are also feasible.

[0047] As a non-limiting example, Figure 5 As shown in the partial enlarged view of the embodiment, the positioning assembly 6 may include a first positioning frame 10, a first positioning rod 11 supporting the first positioning frame 10, a second positioning frame 12, and a second positioning rod 13 supporting the second positioning frame 12. The first positioning frame 10 and the second positioning frame 12 are arranged relative to each other and are configured to abut and clamp the outer side of the carton. Preferably, in the accommodating space S between the pair of body halves, the first positioning frame 10 and the first positioning rod 11 can be arranged on one body half, and the second positioning frame 12 and the second positioning rod 13 can be arranged relatively on the other body half. Specifically, one end of the first positioning rod 11 is connected to the first positioning frame 10, and the other end of the first positioning rod 11 is arranged on the body half. One end of the second positioning rod 13 is connected to the second positioning frame 12, and the other end of the second positioning rod 13 is arranged on the other body half. As a non-limiting example, the first positioning frame 10 and the first positioning rod 11 can be connected by bolts, and the second positioning frame 12 and the second positioning rod 13 can also be connected by bolts. This connection method is simple and convenient.

[0048] Further preferably, at least one of the first positioning rod 11 and the second positioning rod 13 (for example, either one or both) can be telescopic relative to each other, so as to clamp the carton between the first positioning frame 10 and the second positioning frame 12 according to the specific size of the carton and thereby position the carton. In addition, further preferably, at least one of the first positioning frame 10 and the second positioning frame 12 can be an L-shaped positioning frame (not shown in the figure). Thereby, it is convenient to clamp the corner of the carton more firmly from the outside of the carton. The specific number of the positioning components 6 is not particularly limited, for example, it can be one, two or more.

[0049] On the mechanism body 1, at least one expanding component 5 configured to expand the top opening of the carton that has been positioned by the positioning component 6 may also be provided. Figure 1 , 2 , 6. Here, "expansion" can be generally understood as opening the top of the carton to prevent the carton from collapsing inwards. Preferably, the expansion assembly 5 can be arranged at the top of the mechanism body 1.

[0050] As a non-limiting example, Figure 6As shown in the partial enlarged view of the flaring assembly 5, the flaring assembly 5 may include a flaring frame 14 configured to abut against one of the corners of the carton on the inner side of the carton, and a flaring adjustment rod 15 configured to adjust the position of the flaring frame 14, and the flaring adjustment rod 15 is configured to be pivotable. The flaring adjustment rod 15 enables the flaring frame 14 to extend into the carton through the top opening of the carton to abut against the carton so as to flare the carton. The flaring frame 14 may be arranged at the end of the flaring adjustment rod 15. Preferably, the flaring assembly 5 may also include a flaring base 16 and a flaring adjuster 17. The flaring adjuster 17 is pivotally arranged on the flaring base 16, and then the flaring adjustment rod 15 is pivotally connected to the flaring adjuster 17. The flaring adjustment rod 15 can be pivotally adjusted on the inner side of the flaring adjuster 17, etc. For example, the expansion regulator 17 can be connected to the expansion base 16 by bolts, and the expansion regulator 17 can be connected to the expansion adjustment rod 15 by bolts. In addition, the expansion frame 14 can also be connected to the expansion adjustment rod 15 by bolts. This connection method is simple and convenient. The pivotable expansion adjustment rod 15 and the expansion regulator 17 can be used together to adjust the position of the expansion frame 14, so that the expansion frame 14 can extend to the inside of the carton and abut against the carton, so as to expand the carton. Here, the expansion assembly 5 does not have to be provided with the expansion adjustment rod 15, the expansion regulator 17 and the expansion base 16. For example, any one or both of the expansion adjustment rod 15, the expansion regulator 17 and the expansion base 16 can be appropriately omitted, as long as the function of making the expansion frame 14 extend to the inside of the carton and abut against the carton can be achieved.

[0051] Preferably, the expansion frame 14 can be an L-shaped component so as to better abut against the right-angled corner of the carton. Further preferably, as Figure 4 As shown in the top view of the carton loading expansion and positioning mechanism, four expansion components 5 can be provided, and two expansion components 5 are provided on the top of each body half. The expansion components 5 are arranged in pairs, and are used to abut against the four corners of the carton on the inner side of the carton respectively.

[0052] Preferably, the carton loading expansion positioning mechanism may further include a dust collecting mechanism 2 disposed on either of the pair of body halves, such as Figure 1 , 7 For example, the dust suction mechanism 2 may be arranged on the top of the mechanism body 1. The dust suction mechanism 2 may be provided with a dust suction pipe 22 configured to extend into the carton to perform a dust suction cleaning operation.

[0053] As a non-limiting example, Figure 7As shown in the enlarged view of , the dust collection mechanism 2 may also include a positioning cylinder 18, a telescopic rod 19, a compressor 20 and a dust collection box 21. The positioning cylinder 18 may be arranged on the top of the half of the body. The telescopic rod 19 may be telescopically arranged between the positioning cylinder 18 and the compressor 20. The dust collection box 21 may be arranged at the end of the compressor 20. The dust collection pipe 22 may be arranged at the bottom of the dust collection box 21 in communication with the dust collection box 21. The telescopic rod 19, the compressor 20, etc. enable the dust collection pipe 22 to extend into cartons of different sizes, and enable the dust collection pipe 22 to remove dust and clean different parts of the cartons. Here, the dust collection mechanism 2 is also referred to as an adjustable dust collection mechanism. In addition, the dust collection mechanism 2 does not have to include all of the above components, but one or more of them may be omitted. For example, the dust collection box 21, etc. may not be provided in the dust collection mechanism 2.

[0054] Preferably, one of the pair of body halves of the mechanism body 1 may also be provided with an observation window 8 configured to be used for observing the accommodation space S inside the mechanism body 1, such as Figure 1 , 3 The observation window 8 is convenient for manual visual inspection of the operation of the expansion and positioning mechanism for carton loading.

[0055] In addition, additional mechanisms or components may be provided on the mechanism body 1 according to specific needs. For example, a clamp mechanism 3 may be provided on the top of the mechanism body 1. A clamp connecting rod 4 may also be provided on the top of the clamp mechanism 3, such as Figure 1 , 3 The clamp connecting rod 4 can be connected with other required components. The clamp mechanism 3 and the clamp connecting rod 4 are not the focus of this application, and their specific structures and functions will not be described in detail here.

[0056] In addition, a control system (not shown in the figure) for controlling the entire carton loading expansion positioning mechanism may also be provided on the mechanism body 1. The control system may be any control system that can achieve its intended function.

[0057] The working principle of the expansion and positioning mechanism for carton loading according to the utility model will be described below. When loading the carton, the carton enters the accommodating space S of the mechanism body 1 through the roller line 7. When the transported carton passes the position of the positioning assembly 6, the first positioning frame 10 and the second positioning frame 12 move under the telescopic operation of the first positioning rod 11 and the second positioning rod 13 according to the specific size of the carton, thereby supporting the outer side of the carton from both sides to fix the carton. At the same time, the top opening of the carton is expanded by the expansion assembly 5, and the expansion adjustment rod 15 adjusts the position of the expansion frame 14 so that the expansion frame 14 enters the inside of the carton and abuts the four corners of the top of the carton, thereby expanding the carton. After positioning and expanding, the telescopic rod 19, the compressor 20, etc. can drive the dust suction pipe 22 to extend into the inside of the carton, and the dust suction pipe 22 sucks the dust inside the carton into the inside of the dust suction box 21.

[0058] The expansion and positioning mechanism for loading a carton according to the utility model has a simple structure, is practical and convenient to operate, and can conveniently perform positioning operations on the carton and expansion operations on the top of the carton. As a result, the cigarette strips can be neatly stacked inside the positioned and expanded carton quickly and easily. When the carton is accurately positioned and expanded, the packing efficiency of the robot can be greatly improved, the failures during the packing process can be reduced, and the scratches on the cigarette strips can be minimized. In addition, according to the expansion and positioning mechanism for loading a carton according to the utility model, it is also convenient to perform cleaning operations such as dust removal inside the carton.

[0059] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

[0060] Although the present invention has been described with reference to exemplary embodiments, it should be understood that the present invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims

1. A carton loading expansion and positioning mechanism, comprising a support base (9) and a mechanism body (1) supported by the support base (9), characterized in that: The mechanism body (1) comprises a pair of body halves which are opposite to each other and spaced apart from each other, and the cartons to be loaded are received in a storage space (S) between the pair of body halves. The mechanism body (1) is provided with a roller line (7) configured to receive and convey the cartons to be loaded in the storage space (S), at least one positioning component (6) configured to position the cartons received and conveyed by the roller line (7) in the storage space (S), and at least one expanding component (5) configured to expand the top opening of the carton positioned by the positioning component (6).

2. The expansion and positioning mechanism for carton loading according to claim 1, characterized in that: The positioning assembly (6) includes a first positioning frame (10), a first positioning rod (11) supporting the first positioning frame (10), a second positioning frame (12), and a second positioning rod (13) supporting the second positioning frame (12), wherein the first positioning frame (10) and the second positioning frame (12) are arranged opposite to each other and are configured to abut and clamp the outer side of the carton.

3. The expansion and positioning mechanism for carton loading according to claim 2, characterized in that: In the accommodating space (S) between the pair of body halves, the first positioning frame (10) and the first positioning rod (11) are arranged on one of the pair of body halves, and the second positioning frame (12) and the second positioning rod (13) are arranged on the other of the pair of body halves.

4. The expansion and positioning mechanism for carton loading according to claim 3, characterized in that: At least one of the first positioning rod (11) and the second positioning rod (13) is capable of telescoping relative to each other.

5. The expansion and positioning mechanism for carton loading according to claim 2, characterized in that: The first positioning frame (10) and the first positioning rod (11) are connected via bolts, and the second positioning frame (12) and the second positioning rod (13) are connected via bolts.

6. The expansion and positioning mechanism for carton loading according to claim 2, characterized in that: At least one of the first positioning frame (10) and the second positioning frame (12) is an L-shaped positioning frame.

7. The carton loading expansion and positioning mechanism according to any one of claims 1 to 6, characterized in that: The expansion assembly (5) comprises an expansion frame (14) configured to extend to the inner side of the carton and abut against the corner of the carton, and an expansion adjustment rod (15) configured to adjust the position of the expansion frame (14), wherein the expansion adjustment rod (15) is configured to be pivotable.

8. The expansion and positioning mechanism for carton loading according to claim 7, characterized in that: The flaring assembly (5) further comprises a flaring base (16) and a flaring adjuster (17), wherein the flaring adjuster (17) is pivotally arranged on the flaring base (16), and the flaring adjustment rod (15) is pivotally connected to the flaring adjuster (17).

9. The expansion and positioning mechanism for carton loading according to claim 8, characterized in that: The flaring adjuster (17) is connected to the flaring base (16) via bolts, and the flaring adjuster (17) is connected to the flaring adjustment rod (15) via bolts.

10. The expansion and positioning mechanism for carton loading according to claim 7, characterized in that: The expansion frame (14) is an L-shaped component.

11. The carton loading expansion and positioning mechanism according to any one of claims 1 to 6, characterized in that: The carton loading expansion and positioning mechanism further comprises a dust suction mechanism (2) arranged on one of the pair of body halves, wherein the dust suction mechanism (2) is provided with a dust suction pipe (22) configured to extend into the carton to perform dust suction operations.

12. The expansion and positioning mechanism for loading a carton according to claim 11, characterized in that: The dust collection mechanism (2) further comprises a positioning cylinder (18), a telescopic rod (19), a compressor (20) and a dust collection box (21); the positioning cylinder (18) is arranged on a half portion of the main body; the telescopic rod (19) is telescopically arranged between the positioning cylinder (18) and the compressor (20); the dust collection box (21) is arranged at the end of the compressor (20); and the dust collection pipe (22) is arranged at the bottom of the dust collection box (21) in communication with the dust collection box (21).

13. The carton loading expansion and positioning mechanism according to any one of claims 1 to 6, characterized in that: One of the pair of body halves of the mechanism body (1) is also provided with an observation window (8) configured to be used for observing the accommodation space (S) inside the mechanism body (1).

14. The carton loading expansion and positioning mechanism according to any one of claims 1 to 6, characterized in that: The carton loading expansion and positioning mechanism is provided with four expansion components (5), and two expansion components (5) are arranged on the top of each body half.

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