A connector detection device

Abstract

This utility model discloses a connector testing device, comprising: a frame; a transmission track disposed on the frame; a carrier disposed on the transmission track and used to carry the connector; a lower detection mechanism for detecting the position of the lower end of the center pin; an upper detection mechanism for detecting the position of the upper end of the center pin; and a main body shaping mechanism for correcting the opening degree of the mating connecting elastic pieces at the upper end of the main body. The main body structure includes an opening component and a closing component. The opening component extends into the mating connecting elastic pieces and opens the openings of the mating connecting elastic pieces to a uniform size. The closing component forces the opened mating connecting elastic pieces to close to a uniform size. Through the above method, this utility model can detect whether the position of the center pin in the assembled connector conforms to the specified range, ensuring that the opening degree of the six mating connecting elastic pieces is within the specified range.

Description

Technical Field

[0001] This utility model relates to the field of connector testing, and in particular to a connector testing device. Background Technology

[0002] A connector is an electrical contact element used to connect electronic devices and circuits. It enables functions such as connecting, disconnecting, branching, conducting, and isolating circuits. Connectors transmit current through the contact between metal conductors, allowing various circuit components to be electrically connected and enabling the transmission of signals and power. The connector terminal is one of the components of a machine.

[0003] like Figure 1 The diagram shows an exploded view of a communication RF connector, comprising a main body and an insulated outer layer. The upper part of the main body has six mating elastic tabs, which serve to facilitate mating and connection with other connectors. The insulated outer layer consists of an outer insulator encasing a central pin. After assembling the insulated outer layer into the main body, it is necessary to check whether the position of the central pin is within a specified range and to ensure that the opening degree of the six mating elastic tabs is within a specified range. Therefore, a connector testing device is urgently needed. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a connector testing device that can detect whether the position of the center pin in the assembled connector conforms to the fixed condition and ensures that the opening degree of the six mating connecting elastic pieces is within the specified range.

[0005] To solve the above-mentioned technical problems, the present invention provides a connector testing device, comprising: a frame;

[0006] The transfer track is mounted on the rack.

[0007] The carrier is set on the transport track and is used to carry the connector;

[0008] The lower detection mechanism is mounted on the frame and is used to detect the position of the lower end of the center needle.

[0009] The upper detection mechanism is mounted on the frame and is used to detect the position of the upper end of the center needle.

[0010] The main body shaping mechanism is mounted on the frame and is used to correct the opening degree of the mating connecting elastic plates at the upper end of the main body. The main body overall mechanism includes a spreading component and a shrinking component. The spreading component extends into the mating connecting elastic plates and spreads the openings of the mating connecting elastic plates to a uniform size. The shrinking component forces the spread mating connecting elastic plates to shrink to a uniform size.

[0011] Preferably, the spreading component includes a spreading drive and a spreading column disposed on the spreading drive. The end of the spreading column near the transmission track extends into a frustum. The spreading drive drives the frustum to extend into or away from the mating connecting elastic pieces on the main body. The diameter of the end of the frustum near the transmission track is smaller than the diameter of the end of the frustum away from the transmission track. When the frustum extends into the space between the mating connecting elastic pieces on the main body, it spreads the openings of the mating connecting elastic pieces to a uniform size.

[0012] Preferably, the narrowing assembly includes a narrowing drive and a narrowing post disposed on the narrowing drive. The end of the narrowing post near the transmission track has a tapered hole. The diameter of the tapered hole near the transmission track is larger than the diameter of the end of the tapered hole away from the transmission track. The narrowing drive causes the tapered hole to cover the outer edge of the mating connecting elastic sheet on the main body and forces the mating connecting elastic sheet after it has been stretched to narrow to a uniform size or causes the tapered hole to move away from the mating connecting elastic sheet on the main body.

[0013] Preferably, the lower detection mechanism includes a lower detection drive and a lower displacement sensor disposed on the lower detection drive. The lower detection drive drives the lower displacement sensor to extend into the lower end of the connector and contact the lower end of the center pin, thereby detecting the position of the lower end of the center pin.

[0014] Preferably, a first flipping component is provided on one side of the lower detection mechanism. The first flipping component includes a first driving member, a first flipping cylinder provided on the first driving member, and a first gripper provided on the first flipping cylinder. The first driving member is used to adjust the height position of the first gripper. After the first gripper clamps the connector, it flips the connector 180° under the action of the first flipping cylinder.

[0015] Preferably, a first CCD detection mechanism is provided between the lower detection mechanism and the main body shaping mechanism. The first CCD detection mechanism includes a first CCD driver and a first CCD camera. The first CCD camera is mounted on the first CCD driver and faces the transmission track. The first CCD camera is used to detect the concentricity between the lower end of the center needle and the lower end of the main body.

[0016] Preferably, a second flipping component is provided on one side of the first CCD detection mechanism. The second flipping component includes a second driving member, a second flipping cylinder disposed on the second driving member, and a second gripper disposed on the second flipping cylinder. The second driving member is used to adjust the height position of the second gripper. After the second gripper clamps the connector, it flips the connector 180° under the action of the second flipping cylinder.

[0017] Preferably, the upper detection mechanism includes an upper detection drive and an upper displacement sensor disposed on the upper detection drive. The upper detection drive drives the upper displacement sensor to extend into the upper end of the connector and contact the upper end of the center pin, thereby detecting the position of the upper end of the center pin.

[0018] Preferably, a second CCD detection mechanism is provided on one side of the upper detection mechanism. The second CCD detection mechanism includes a second CCD driver and a second CCD camera. The second CCD camera is mounted on the second CCD driver and faces the transmission track. The second CCD camera is used to detect the concentricity between the upper end of the center needle and the upper end of the main body.

[0019] Preferably, a feeding gripper is provided on one side of the second CCD detection mechanism.

[0020] The beneficial effects of this utility model are as follows: By setting up an integrated transmission track, carrier, lower detection mechanism, upper detection mechanism, main body shaping mechanism, and supporting flipping component and CCD detection mechanism, a fully automated assembly line operation for connector inspection is achieved. The main body shaping mechanism adopts a unique "expansion-reduction" dual-component collaborative design (the expansion component forcibly expands the opening through a conical frustum, and the reduction component uniformly reduces the opening through a conical inclined surface), efficiently and accurately correcting the opening degree of the mating connecting elastic plates, ensuring their consistency; the displacement sensor directly contacts the upper and lower ends of the center pin for position detection, combined with a CCD camera for non-contact visual measurement of the concentricity between the center pin and the main body, significantly improving the reliability of positional accuracy and fit tolerance detection; the flexible intervention of the flipping component adapts to the connector orientation requirements of different workstations, while the unloading gripper achieves automatic classification. The overall device has a compact structure and smooth process connections, greatly improving inspection efficiency and product yield, and effectively solving the problem of standardized control of connector center pin position and elastic plate opening. Attached Figure Description

[0021] Figure 1 This is an exploded view of the connector that needs to be tested in this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 3 yes Figure 2 Enlarged diagram of section A in the middle;

[0024] Figure 4 yes Figure 2 Enlarged schematic diagram of section B in the middle;

[0025] Figure 5 This is a structural schematic diagram of the spreading component and the narrowing component in this utility model.

[0026] The components in the attached diagram are labeled as follows:

[0027] 1. Frame; 11. Conveyor rail; 12. Carrier; 13. Unloading gripper;

[0028] 2. Lower detection mechanism; 21. Lower detection drive component; 22. Lower displacement sensor;

[0029] 3. Upper detection mechanism; 31. Upper detection drive component; 32. Upper displacement sensor;

[0030] 4. Spreading component; 41. Spreading drive component; 42. Spreading column; 421. Frustum;

[0031] 5. Narrowing assembly; 51. Narrowing drive component; 52. Narrowing post; 521. Tapered hole;

[0032] 62. First tilting cylinder; 63. First gripper;

[0033] 7. First CCD testing mechanism; 71. First CCD driver; 72. First CCD camera;

[0034] 82. Second tilting cylinder; 83. Second gripper;

[0035] 9. Second CCD inspection mechanism; 91. Second CCD driver; 92. Second CCD camera;

[0036] 1000, Main body; 1001, Pairing connecting elastic sheet;

[0037] 2000, Rubber-coated parts; 2001, Insulators; 2002, Center pins. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0044] Unless otherwise specified, physical quantities in formulas should be understood as basic quantities of SI base units, or derived quantities derived from basic quantities through mathematical operations such as multiplication, division, differentiation, or integration.

[0045] Example:

[0046] refer to Figures 1-5 A connector testing device includes: a frame 1;

[0047] Transmission rail 11 is mounted on frame 1;

[0048] Carrier 12 is mounted on transmission track 11. Carrier 12 is used to carry connectors. Transmission track 11 drives carrier 12 to move back and forth in a cyclical manner to reach different workstations.

[0049] and arranged sequentially on the frame 1 along the transmission track 11

[0050] Lower detection mechanism 2 is installed on frame 1 and is used to detect the position of the lower end of center needle 2002.

[0051] Upper detection mechanism 3 is installed on frame 1 and is used to detect the position of the upper end of center needle 2002.

[0052] The main body shaping mechanism is mounted on the frame 1. The main body shaping mechanism is used to correct the opening degree of the mating connecting elastic sheet 1001 at the upper end of the main body 1000. The main body overall mechanism includes a spreading component 4 and a narrowing component 5. The spreading component 4 extends into the mating connecting elastic sheet 1001 and spreads the opening of the mating connecting elastic sheet 1001 to a uniform size. The narrowing component 5 forces the spread mating connecting elastic sheet 1001 to narrow to a uniform size, thereby controlling the size of the same opening degree of the mating connecting elastic sheet 1001.

[0053] refer to Figure 1 and Figure 5The spreading component 4 includes a spreading drive 41 and a spreading column 42 mounted on the spreading drive 41. The spreading drive 41 can be a linear motor module, a lead screw module, a cylinder, or a hydraulic cylinder, etc., which can drive the spreading column 42 to move up and down. A linear motor module is preferred because it has high precision and stable operation. The end of the spreading column 42 near the transmission rail 11 extends into a frustum 421. The spreading drive 41 drives the frustum 421 to extend into or away from the mating connecting elastic pieces 1001 on the main body 1000. The diameter of the end of the frustum 421 near the transmission rail 11 is smaller than the diameter of the end of the frustum 421 away from the transmission rail 11. When the frustum 421 extends into the mating connecting elastic pieces 1001 on the main body 1000, it opens the opening of the mating connecting elastic pieces 1001 to a uniform size. In order to avoid the position of the center pin 2002, an avoidance hole can be opened at the end of the frustum 421 near the transmission rail 11.

[0054] The necking assembly 5 includes a necking drive 51 and a necking post 52 mounted on the necking drive 51. The necking drive 51 can be a linear motor module, a lead screw module, a cylinder, or a hydraulic cylinder, etc., which can drive the necking post 52 to move up and down. A linear motor module is preferred because it has high precision and stable operation. The end of the necking post 52 near the transmission rail 11 has a tapered hole 521. The diameter of the tapered hole 521 near the transmission rail 11 is larger than the diameter of the end of the tapered hole 521 away from the transmission rail 11. The necking drive 51 drives the tapered hole 521 to cover the outer edge of the paired connecting elastic piece 1001 on the main body 1000 and uses the tapered slope of the tapered hole 521 to force the paired connecting elastic pieces 1001 to narrow to a uniform size after being opened, or after completing the necking action, it drives the tapered hole 521 away from the paired connecting elastic piece 1001 on the main body 1000. By first arranging the spreading component 4 to expand the mating connecting elastic pieces 1001 to a uniform size opening, and then uniformly shrinking them using the shrinking component 5, unified control of the opening of the mating connecting elastic pieces 1001 is achieved. This avoids the situation where, if the shrinking component 5 is arranged first and then the spreading component 4, the mating connecting elastic pieces 1001 may shrink too small due to their own limitations, preventing the spreading post 42 from extending and expanding.

[0055] refer to Figure 2 and Figure 3 The lower detection mechanism 2 includes a lower detection drive component 21 and a lower displacement sensor 22 mounted on the lower detection drive component 21. The lower detection drive component 21 can be a linear motor module, a lead screw module, a cylinder, or a hydraulic cylinder, etc., which can drive the lower displacement sensor 22 to move up and down. A linear motor module is preferred because it has high precision and stable operation. The lower detection drive component 21 drives the lower displacement sensor 22 to extend into the lower end of the connector and contact the lower end of the center pin 2002, thereby detecting the position of the lower end of the center pin 2002.

[0056] refer to Figure 2 and Figure 3 A first flipping assembly is provided on one side of the lower detection mechanism 2. The first flipping assembly includes a first driving component, a first flipping cylinder 62 mounted on the first driving component, and a first gripper 63 mounted on the first flipping cylinder 62. The first driving component can be a linear motor module, a lead screw module, a cylinder, or a hydraulic cylinder, etc., which can drive the first flipping cylinder 62 to move up and down. The first driving component is used to adjust the height position of the first gripper 63. After the first gripper 63 clamps the connector, it flips the connector 180° under the action of the first flipping cylinder 62. Thus, when the carrier 12 carries the connector to the lower detection mechanism 2, if its upper end is facing up, the connector can be flipped by the first flipping assembly. Also, if the subsequent workstation mechanism needs to inspect the upper end of the connector, the lower detection mechanism 2 can inspect the lower end of the connector and then flip the connector so that its upper end faces up by the first flipping assembly.

[0057] refer to Figure 2 and Figure 3 A first CCD detection mechanism 7 is arranged between the lower detection mechanism 2 and the main body shaping mechanism. The first CCD detection mechanism 7 is mounted on the frame 1. The first CCD detection mechanism 7 includes a first CCD driver 71 and a first CCD camera 72. The first CCD camera 72 is mounted on the first CCD driver 71. The first CCD driver 71 can be a linear motor module, a lead screw module, a cylinder, or a hydraulic cylinder, etc., which can drive the first CCD camera 72 to move up and down. The first CCD camera 72 is arranged facing the transmission track 11. The first CCD camera 72 is used to detect the concentricity between the lower end of the center needle 2002 and the lower end of the main body 1000.

[0058] refer to Figure 2 and Figure 3 A second flipping assembly is arranged on one side of the first CCD inspection mechanism 7. The second flipping assembly is mounted on the frame 1 and includes a second drive component, a second flipping cylinder 82 mounted on the second drive component, and a second gripper 83 mounted on the second flipping cylinder 82. The second drive component can be a linear motor module, a lead screw module, a cylinder, or a hydraulic cylinder, etc., capable of driving the second flipping cylinder 82 to move up and down. The second drive component is used to adjust the height position of the second gripper 83. After the second gripper 83 clamps the connector, it flips the connector 180° under the action of the second flipping cylinder 82. If the subsequent workstation mechanism needs to inspect the upper end of the connector, the upper end of the connector should be adjusted to face upwards in advance.

[0059] refer to Figure 2 and Figure 4The upper detection mechanism 3 includes an upper detection drive unit 31 and an upper displacement sensor 32 mounted on the upper detection drive unit 31. The upper detection drive unit 31 can be a linear motor module, a lead screw module, a cylinder, or a hydraulic cylinder, etc., which can drive the lower displacement sensor 22 to move up and down. A linear motor module is preferred because it has high precision and stable operation. The upper detection drive unit 31 drives the upper displacement sensor 32 to extend into the upper end of the connector and contact the upper end of the center pin 2002, thereby detecting the position of the upper end of the center pin 2002.

[0060] refer to Figure 2 and Figure 4 A second CCD detection mechanism 9 is installed on one side of the upper detection mechanism 3. The second CCD detection mechanism 9 includes a second CCD driver 91 and a second CCD camera 92. The second CCD camera 92 is mounted on the second CCD driver 91. The second CCD driver 91 can be a linear motor module, a lead screw module, a cylinder, or a hydraulic cylinder, etc., which can drive the second CCD camera 92 to move up and down. The second CCD camera 92 is arranged facing the transmission track 11. The second CCD camera 92 is used to detect the concentricity between the upper end of the center needle 2002 and the upper end of the main body 1000.

[0061] refer to Figure 2 The second CCD inspection mechanism 9 has a feeding gripper 13 on one side, which feeds the connectors after inspection and sorts them for placement.

[0062] Testing process: The carrier 12, carrying the connector to be tested, first reaches the lower testing mechanism 2 to test the position and height of the lower end of the center pin 2002 in the connector. Then, the first CCD testing mechanism 7 tests the concentricity between the lower end of the center pin 2002 and the lower end of the main body 1000. Then, the spreading component 4 extends into the mating connection elastic sheet 1001 and spreads the opening of the mating connection elastic sheet 1001 to a uniform size. Then, the shrinking component 5 forces the spread mating connection elastic sheet 1001 to shrink to a uniform size. Then, the upper testing mechanism 3 tests the position and height of the upper end of the center pin 2002 in the connector. Then, the second CCD testing mechanism 9 tests the concentricity between the upper end of the center pin 2002 and the upper end of the main body 1000. Finally, the unloading gripper 13 sorts and unloads the tested connectors.

[0063] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A connector detection device characterized by comprising: include: Rack (1); A transmission track (11) is mounted on a frame (1); A carrier (12) is disposed on a transmission track (11) and is used to carry a connector; The lower detection mechanism (2) is mounted on the frame (1) and is used to detect the position of the lower end of the center needle (2002). Upper detection mechanism (3) is set on the frame (1) and is used to detect the position of the upper end of the center needle (2002); The main body shaping mechanism is mounted on the frame (1). The main body shaping mechanism is used to correct the opening degree of the mating connecting elastic sheet (1001) at the upper end of the main body (1000). The main body (1000) overall mechanism includes a spreading component (4) and a narrowing component (5). The spreading component (4) extends into the mating connecting elastic sheet (1001) and spreads the opening of the mating connecting elastic sheet (1001) to a uniform size. The narrowing component (5) forces the spread mating connecting elastic sheet (1001) to narrow to a uniform size.

2. The connector testing device according to claim 1, characterized in that: The spreading component (4) includes a spreading drive (41) and a spreading column (42) disposed on the spreading drive (41). The spreading column (42) has a frustum (421) extending from one end near the transmission track (11). The spreading drive (41) drives the frustum (421) to extend into or away from the mating connecting elastic pieces (1001) on the main body (1000). The diameter of the end of the frustum (421) near the transmission track (11) is smaller than the diameter of the end of the frustum away from the transmission track (11). When the frustum (421) extends into the mating connecting elastic pieces (1001) on the main body (1000), it spreads the opening of the mating connecting elastic pieces (1001) to a uniform size.

3. The connector testing device according to claim 2, characterized in that: The narrowing assembly (5) includes a narrowing drive (51) and a narrowing post (52) disposed on the narrowing drive (51). The narrowing post (52) has a tapered hole (521) at one end near the transmission track (11). The diameter of the tapered hole (521) at the end near the transmission track (11) is larger than the diameter of the tapered hole (521) away from the transmission track (11). The narrowing drive (51) drives the tapered hole (521) to cover the outer edge of the mating connecting elastic piece (1001) on the main body (1000) and forces the mating connecting elastic piece (1001) after it is stretched open to narrow to a uniform size or drives the tapered hole (521) away from the mating connecting elastic piece (1001) on the main body (1000).

4. The connector testing device according to claim 1, characterized in that: The lower end detection mechanism (2) includes a lower end detection drive (21) and a lower end displacement sensor (22) disposed on the lower end detection drive (21). The lower end detection drive (21) drives the lower end displacement sensor (22) to extend into the lower end of the connector and contact the lower end of the center pin (2002), thereby detecting the position of the lower end of the center pin (2002).

5. A connector testing device according to claim 4, characterized in that: The lower detection mechanism (2) is provided with a first flipping component on one side. The first flipping component includes a first driving member, a first flipping cylinder (62) provided on the first driving member, and a first gripper (63) provided on the first flipping cylinder (62). The first driving member is used to adjust the height position of the first gripper (63). After the first gripper (63) clamps the connector, it flips the connector 180° under the action of the first flipping cylinder (62).

6. A connector testing device according to claim 5, characterized in that: A first CCD detection mechanism (7) is provided between the lower detection mechanism (2) and the main body shaping mechanism. The first CCD detection mechanism (7) includes a first CCD driver (71) and a first CCD camera (72). The first CCD camera (72) is mounted on the first CCD driver (71) and faces the transmission track (11). The first CCD camera (72) is used to detect the concentricity between the lower end of the center needle (2002) and the lower end of the main body (1000).

7. A connector testing device according to claim 6, characterized in that: A second flipping component is provided on one side of the first CCD detection mechanism (7). The second flipping component includes a second driving member, a second flipping cylinder (82) provided on the second driving member, and a second gripper (83) provided on the second flipping cylinder (82). The second driving member is used to adjust the height position of the second gripper (83). After the second gripper (83) clamps the connector, it flips the connector 180° under the action of the second flipping cylinder (82).

8. A connector testing device according to claim 1, characterized in that: The upper detection mechanism (3) includes an upper detection drive (31) and an upper displacement sensor (32) disposed on the upper detection drive (31). The upper detection drive (31) drives the upper displacement sensor (32) to extend into the upper end of the connector and contact the upper end of the center pin (2002), thereby detecting the position of the upper end of the center pin (2002).

9. A connector testing device according to claim 1, characterized in that: A second CCD detection mechanism (9) is provided on one side of the upper detection mechanism (3). The second CCD detection mechanism (9) includes a second CCD driver (91) and a second CCD camera (92). The second CCD camera (92) is mounted on the second CCD driver (91) and faces the transmission track (11). The second CCD camera (92) is used to detect the concentricity between the upper end of the center needle (2002) and the upper end of the main body (1000).

10. A connector testing device according to claim 9, characterized in that: The second CCD detection mechanism (9) is provided with a feeding gripper (13) on one side.

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