Bearing device

Abstract

The invention relates to a carrier device (1) for an inspection unit for inspecting parameters of parts produced by an injection molding machine, a punching machine, a deep-drawing machine or a thermoforming machine and conveyed through the inspection unit, comprising a carrier base element (2), the support base element (2) has at least two support profiles (3) which are oriented parallel to each other, at least two support ribs (4) which connect the at least two support profiles (3) to each other, are arranged perpendicular to a longitudinal axis of the support profiles (3) and are fixed to the support profiles (3), and at least two support plates (5) which are fixed to the at least two support ribs (4), wherein each carrier plate (5) is arranged on an end (6) of at least two carrier ribs (4), which are assigned to one of the at least two carrier profiles (3), and wherein the carrier device (1) further comprises a transport device (7) for the parts, which is fastened to at least two of the carrier plates (5).

Description

Technical Field

[0001] The invention relates to a carrier device of an inspection unit for inspecting parameters of parts produced by an injection molding machine, a stamping machine, a deep drawing machine or a thermoforming machine and conveyed through the inspection unit, in particular for online or post-sorting inspection. Background Art

[0002] During the production of molded parts - such as caps for beverage bottles - or other parts made of plastic or metal by injection molding, stamping or deep drawing or thermoforming, a large number of quality controls are carried out, which include checking each part for completeness and freedom from defects. The quality control of each part here mainly includes an optical inspection of its completeness and freedom from defects, but also quality control for color defects, undermolding, holes, burrs, injection points, etc. Parts that are defective in one or more aspects are subsequently rejected.

[0003] The number and type of control devices at different locations along the part production path significantly influences the floor space requirements of the production facility and, in particular, the production speed. The control processes must therefore be designed in such a way that they slow down the production process as little as possible, with current part-related processing speeds, especially in the case of injection molded parts, often exceeding 2,000 to 4,000 pieces per minute, so that less than 30 milliseconds are available per part for quality control at a certain location.

[0004] In addition to the speed required for quality control, it must also have the highest possible accuracy in order to avoid an unnecessarily large number of scraps or even the failure to identify defective parts as defective and to reject them later. However, in order to adapt the inspection unit to a high number of parts per minute, accuracy is often overlooked. In the prior art, for example, conveying devices such as vacuum conveyors, with which the parts are transported through the inspection unit, are usually fixed by means of sheet metal profiles or aluminum profiles by means of screw connections with through holes. These sheet metal profiles are also used to fix the inspection units (e.g. sensors), which are usually pre-calibrated under laboratory conditions. Due to this simple fixing, the belt of the conveyor is very convenient to replace and can be easily removed from the device. However, due to manufacturing tolerances of the sheet metal profiles and the fixing holes, as well as the inspection units that cannot be easily calibrated under the conditions of use, the quality control accuracy is reduced. Even if the calibration of the inspection unit is carried out for a newly installed conveyor belt, this additional process must always be repeated every time the belt is replaced or other maintenance work results in mechanical deviations from the previous state. Summary of the invention

[0005] Therefore, the object of the present invention is to provide a particularly precise carrier device for inspection units despite the high throughput requirements of in-line or post-sorting inspection devices and to solve the above-mentioned problems in the prior art.

[0006] This object is achieved by a carrier device of an inspection unit for inspecting parameters of parts produced by an injection molding machine, a stamping machine, a deep drawing machine or a hot forming machine and conveyed through the inspection unit, comprising a carrier base element, having at least two carrier profiles oriented parallel to each other, at least two carrier ribs connecting the at least two carrier profiles to each other, arranged perpendicular to the longitudinal axis of the carrier profiles and fixed to the carrier profiles, and at least two carrier plates fixed to the at least two carrier ribs, wherein each carrier plate is fixed to the ends of at least two carrier ribs, which are assigned to one of the at least two carrier profiles, wherein the carrier device also has a conveying device for the parts fixed to at least two of the carrier plates.

[0007] The following description will mainly focus on injection molded parts produced by an injection molding machine, but according to the present invention, other parts made of plastic or metal by injection molding, stamping, deep drawing or thermoforming are also included.

[0008] The carrying base element forms a base frame which establishes a connection between the substructure at the place of use and the test unit with its test element and which compensates for inaccuracies in the substructure according to the invention so that the test element can be inserted into the carrying base element according to the invention in a largely standardized and precalibrated manner and can be used directly without further calibration.

[0009] According to the invention, it is particularly important to reduce the error chain of the carrier base element as much as possible, since, for example, dimensional errors of the carrier ribs can influence the arrangement of the carrier profiles and the carrier plate connected thereto and thus the transport device and the test element directly or indirectly fastened to the carrier plate. The carrier plate, the transport device, the test element and their respective connecting elements are also sources of dimensional errors, which can accumulate. At the end of this error chain is the test unit and thus the quality of the control results of the test unit.

[0010] In addition to reducing errors, the invention also ensures the repeatability or repeatability of the measuring system. Repeatability refers to the accuracy of the system, thanks to which individual parts can be repositioned in the same position even when they are disassembled and reassembled (e.g. due to maintenance work, including replacement of components), which makes recalibration a great advantage or only necessary in exceptional cases.

[0011] According to the invention, the support profiles are arranged parallel to one another, which is achieved with high precision by means of support ribs, which are respectively connected to two support profiles and are respectively oriented perpendicularly to the support profiles. Two or more support profiles are particularly advantageous in order to protect the support base element against twisting and distortion of the support ribs. The support ribs according to the invention are high-precision, in particular milled components, i.e., they have the smallest possible dimensional tolerances due to their manufacturing method. According to the invention, the support ribs can be not one-piece, but multi-part, since this allows the manufacture of particularly stable and dimensionally precise support ribs. According to the meaning of the invention, "components" also include all parts of the device, which together form the support device of the invention. Likewise, all grooves, holes or similar structures of these components also have correspondingly low errors or are manufactured with low tolerances, so that a high overall accuracy of the device and thus a high accuracy of the inspection unit connected thereto is achieved.

[0012] Similar to this measure, the carrier plate fixed to the carrier ribs and its dimensions, recesses and holes are also processed with low tolerances, in particular milled. This low-tolerance production is especially carried out in the connection area between the components according to the invention.

[0013] A conveying device for conveying the parts, in particular injection-molded parts, through the inspection unit is located between the two carrier plates and is directly or indirectly connected to the carrier plates. The conveying device is preferably a vacuum conveyor belt, but can also be any other conveying device, for example a simple conveyor belt. In any case, according to the invention, the conveying device is also connected to the carrier plates with low tolerances so that it can be positioned in the carrier device in a reproducible and positionally accurate manner during replacement. It is also advantageous if the surface of the conveying device, on which the parts, in particular injection-molded parts, move, is located above the surface of the carrier plates, i.e. the surface of the carrier plates is sunken relative to the surface of the conveying device, so that objects located on the carrier plates cannot easily reach the conveying device and thus enter the part flow to be inspected.

[0014] In one embodiment of the invention, the bearing base element can be extended modularly, in particular coaxially on both sides of the bearing base element. In this way, it can be advantageously achieved that the inlet band and / or outlet band of the device according to the invention can be extended according to the requirements on site. For modular extension, the length of the bearing profile and the number of corresponding bearing ribs can be adjusted as required, wherein the basic structure of the bearing base element remains unchanged. Likewise, the bearing base element can be extended later, in particular by adding further bearing plates, bearing ribs and / or adapter plates connecting the bearing plates and / or bearing ribs. In order to ensure the stability of the extended bearing base element, it is appropriate to screw and pin the bearing ribs in the interface area of ​​the extension.

[0015] In a further development of the invention, the support rib is fastened to the support profile in two directions perpendicular to each other and perpendicular to the longitudinal axis of the support profile, in particular by means of a screw connection. This screw connection is a simple but precise and stable connection. By connecting the support rib and the support profile in two axes, i.e. two axes oriented perpendicularly to the longitudinal axis of the support profile, the stability and precision of the arrangement are advantageously increased. This double connection also stabilizes the orientation and position of the support profile, allowing the support profile to be aligned with the support rib, so that aluminum can also be used as the material for the support profile.

[0016] In one embodiment of the invention, dowel pins are provided between the carrier plate and the carrier ribs and / or between the carrier plate and the conveying device. The dowel pins serve to precisely align the connection of the components parallel to the respective connection surfaces. Thus, in a plane perpendicular to the longitudinal axis of the dowel pins, i.e. parallel to the connection surfaces, the components to be connected are prevented from moving relative to each other, whereas due to the presence of the connecting elements, such as screws, a movement parallel to the longitudinal axis of the dowel pins is prevented. As described above, the dowel pins and the recesses for accommodating the dowel pins in the carrier plate and the carrier ribs and the conveying device are particularly precisely machined, in particular as milled parts. As an alternative to arranging dowel pins between the carrier plate and the conveying device, according to the invention, centering can also be carried out by means of countersunk screws and possibly elongated holes, by means of which alignment of the conveying device can also be achieved, in particular parallel to the longitudinal axis of the carrier profile.

[0017] The carrier plates are preferably arranged relative to one another in a plane parallel to the plane spanned by the carrier profile, wherein the parallelism of the carrier plates relative to one another is achieved by the parallel construction of the individual contact surfaces with the carrier ribs. In this way, the carrier plates relative to one another have exactly the same height and a very high degree of parallelism due to their precise construction. According to the invention, the relative carrier plates can also be arranged staggered in height, but in this case at least one of the carrier plates has a connection to the conveyor device that is constructed in such a way that the surface of the conveyor device, on which the parts, in particular the injection molded parts, are conveyed, is oriented parallel to the surface of the carrier plate. However, compared to this construction, it is preferred that the carrier plates are arranged parallel in a common plane. In principle, the conveyor device is connected to the carrier base element, in particular to the carrier plate, in such a way that the conveyor device is arranged parallel to the carrier plate and parallel to the plane spanned by the carrier profile. This ensures that the alignment of the inspection element connected to the carrier plate is consistent with the alignment of the carrier plate and is thus simultaneously calibrated to the alignment of the parts, in particular the injection molded parts, on the conveyor device.

[0018] In one embodiment of the invention, the carrier plate and the conveyor have fixing elements corresponding to one another, which are arranged in particular in projections protruding from the carrier plate and from the conveyor or pass through these projections. The fixing elements are in particular screws and dowel pins. The projections corresponding to one another or their surfaces that are in contact in the connected state are exactly parallel to one another and, according to the invention, can also be arranged parallel to the carrier plate and the conveyor, in particular with regard to the available space. The direct connection of the carrier plate and the conveyor also minimizes the number of error sources in the system.

[0019] In a further development of the invention, it has a swivel frame which is positioned above the conveying device and is connected to the carrier plate, in particular by means of dowel pins and screws, wherein the swivel frame can be swiveled in such a way that the inspection element arranged on the swivel frame and the conveying device located below the swivel frame are accessible.

[0020] The swivel frame enables modular mounting of the test elements. Due to its swivelability, both the test unit / test element respectively mounted thereon and the conveyor device located thereunder are accessible. It is also important that the working position of the swivel frame, i.e. its unswiveled end position, is a reproducible position, i.e. the swivel frame can always be moved into exactly the same position.

[0021] The swivel frame has a swivel-supported part, which is fixed to the carrier plate at its end with the swivel axis. The other freely swivelable end, in the closed position of the swivel frame, in particular rests on a stop, which in turn is fixed to the carrier plate. For this purpose, it is particularly advantageous if the swivel frame has corresponding locking pins preloaded by spring force, which engage in corresponding locking openings in the stop in the closed position and lock the swivel frame in this precise closed position. This locking can be unlocked, for example, by a button on the free end of the swivel frame. In order to make the locking pins automatically slide into the locking holes when the swivel frame is closed, the stop has an introduction bevel.

[0022] The swivel frame is precisely fixed to the carrier plate, in particular by means of dowel pins and screws. The same applies to the stops. In a further development of the invention, a scale with markings is provided at each adjustable position, which makes repositioning clear and reproducible.

[0023] The swiveling part of the swiveling frame has a base frame for fixing possible inspection elements, which base frame has a positioning scale, which is formed by multiple, particularly preferably marked grooves. The positioning scale can therefore realize the reproducible setting of the inspection element. The inspection element can be installed in this base frame in any modular way. For this purpose, the inspection element is installed in a swiveling frame module, which has a positioning plate in addition to the inspection element, which can be detachably connected to the base frame of the swiveling frame. Similarly, the particularly precise structure of the base frame and the positioning plate is crucial in the present invention, and it is particularly advantageous to be connected to each other by positioning pins and screws. The positioning plate and the base frame are preferably provided with scales. The swiveling frame module makes it possible to use an inspection element, which can be modularly inserted into the base frame of the swiveling frame as a preassembled unit and replaced. The base frame accommodates one or more swiveling frame modules according to requirements. The swiveling frame can also accommodate other conveying devices, such as vacuum conveyors, instead of the inspection element, to convey the parts to be inspected through its top surface, so that its bottom surface can be freely approached for inspection.

[0024] In one embodiment of the invention, the swivel frame has at least one swivel force intensifier, in particular a gas pressure spring, and / or corresponding positioning radii, wherein the positioning radii are arranged in at least one stop of the swivel frame and in the swivelable free end of the swivel frame. The swivel force intensifier facilitates the user to move the heavy swivel frame when fully loaded without any particular effort. This also greatly reduces the risk of damage to delicate components of the swivel frame due to too violent handling, which is particularly suitable for damping the closing movement of the swivel frame. The positioning radius in the stop and the corresponding positioning radius in the free end of the swivel frame are preferably milled parts and are therefore components within the meaning of the invention, as described above.

[0025] In a further development of the invention, the carrier base element has at least one of the inspection elements, which is selected from the group consisting of: camera, objective lens, lighting device, sensor for part tracking, in particular triggering light barrier, sensor for part counting, in particular counting light barrier, conveyor belt, blow-off valve, discharge channel, separation device, stray light protection device, high-voltage test unit, unit for part measurement. In this case, the inspection element includes any element that can be used or is required for quality control of parts, in particular injection molded parts.

[0026] In one embodiment of the invention, the supporting ribs, the supporting plate and / or the fastening elements or parts thereof are designed as milled parts. If only the parts supporting ribs, the supporting plate and / or the fastening elements are designed as milled parts, then these parts are in particular connecting parts for connecting other components. Firstly, this minimizes the overall tolerances.

[0027] In a further development of the invention, the support base element is indirectly connected to a fixed substrate, in particular a workbench or a work cabinet, via a connecting element. The workbench or work cabinet itself is not necessarily part of the invention. Rather, any other substrate can be selected that can accommodate or support the support base element and that is present at the installation location or is to be used there. Due to this development of the invention, it is not necessary for the substrate dimensions to be particularly accurate. A particularly accurate support base element is not affected by an inaccurate substrate, since the connecting element compensates for these inaccuracies. For this purpose, the connecting element has an elongated hole.

[0028] According to the invention, the workbench or working table (hereinafter collectively referred to as "workbench") has, in addition to the base, two or more side walls. Furthermore, horizontally arranged transverse plates and vertically arranged intermediate walls are advantageous in order to increase the stability of the workbench. According to the invention, it is advantageous if the bearing base element is connected to the intermediate wall of the workbench, for example by screws, preferably directly or via the above-mentioned connecting element.

[0029] The support base elements are screwed directly to the intermediate walls via a fixing rib in each case. The support base elements intentionally do not rest against the side walls in order to prevent inaccuracies of the workbench from being transferred to the support base elements. The connection to the side walls is achieved by means of slotted holes in the connecting element, wherein a gap is always maintained between the side walls and the support base element. Since the support base element is only connected to two closely adjacent intermediate walls without compensation, the support base element does not bend even when it is fixed variably to the remaining side walls. A slight tilting of the support base element relative to the base has no effect on the accuracy and repeatability of the quality control, since, due to the precise support base element, the transport device and the inspection unit are arranged at the same angle relative to the base and therefore do not tilt relative to each other. Angular errors therefore do not affect the quality of the quality control.

[0030] Finally, in a further development, it is also provided that the workbench accommodates electrical cabinets and / or blowers and / or discharge containers which are necessary for the operation of the inspection unit and the conveyor device or for accommodating the sorted parts and which are provided at the point of use.

[0031] A cover on a carrier plate or a workbench can protect the inspection area from external influences. The cover can be detachably connected and / or at least partially pivotable so that the area underneath is accessible for maintenance work. The cover can have a door or a detachable wall.

[0032] It is also advantageous if all adjustable mechanical elements for checking the calibration have scales and / or mechanical guides which are in turn designed as accurately as possible according to the invention. Due to these scales and mechanical guides, errors in the calibration can be avoided and reproducibility is ensured in every variable element of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The invention will be described below by way of example in the form of a preferred embodiment with reference to the accompanying drawings, wherein further advantageous details can be gathered from the figures of the drawings.

[0034] Functionally identical components are denoted by the same reference numerals.

[0035] The accompanying drawings show in detail:

[0036] Figure 1a : A schematic diagram of a bearing base element according to the present invention,

[0037] Figure 1b : a cross-sectional view of a carrier base element according to the invention,

[0038] Figure 1c : Schematic diagram of a carrier base element according to the invention, with modular extensions,

[0039] Figure 2 : Schematic diagram of a carrier base element according to the invention with a transfer device in an unconnected state,

[0040] Figure 3a : A schematic diagram of a workbench according to the present invention,

[0041] Figure 3b : Schematic diagram of a workbench according to the invention with a carrier base element according to the invention in an unconnected state,

[0042] Figure 3c : Schematic diagram of a workbench according to the invention with a carrier base element according to the invention in a connected state,

[0043] Figure 4a : A schematic diagram of a swing frame in an open state according to the present invention,

[0044] Figure 4b : A schematic diagram of a closing mechanism of a swing frame according to the present invention,

[0045] Figure 5a : A schematic diagram of a swing frame according to the present invention in a closed state without a swing frame module installed,

[0046] Figure 5b : A schematic diagram of a first swivel frame module according to the invention,

[0047] Figure 5c : Schematic diagram of a second swivel frame module according to the present invention. DETAILED DESCRIPTION

[0048] Figure 1a The schematic diagram of a support base element 2 of a support device 1 according to the invention is shown. The support base element 2 consists of two parallel support profiles 3 and a plurality of support ribs 4 and a plurality of base plates 5. The support ribs 4 are arranged parallel to each other and perpendicular to the support profiles 3 and are connected to the support profiles 3, in particular in the bending area of ​​the support ribs 4 shown, so that all support ribs 4 have the same orientation. The support profiles 3 are ordinary aluminum profiles, and the support ribs 4 and the support plates 5 are milled parts, or are partially milled parts. The support plates 5 are mounted on the two free ends of the support ribs 4 and are arranged opposite to each other, so that the support plates 5 can be respectively assigned to one end of the support rib 4, or respectively assigned to one support profile 3. Here, the support plate 5 assigned to one of the support profiles 3 is opposite to the support plate 5 assigned to the other support profile 3. In addition, the support plates 5 opposite to each other are spaced apart from each other, so that a free area is formed between the opposite support plates 5. The support base element shown here has exactly six support plates 5 and six support ribs 4, wherein according to the invention, any number of support plates 5 and support ribs 4 is greater than or equal to two. While the two upper support plates 5 in the figure are connected to two support ribs 4, the two lower support plates 5 in the figure are connected to three support ribs 4. The two middle support plates 5 and the two upper support plates 5 share one support rib 4, and a total of four support plates 5 are fixed to the support rib 4. Here, all support plates 5 are always connected to at least two support ribs to ensure that the support plates 5 have sufficient stability. The grooves in the support plates 5 are used to accommodate different inspection units 12, which are not shown here, while the smaller holes are used to accommodate the fixing elements 9 or positioning pins 8 of the inspection units 12 that may be arranged on the support plates 5.

[0049] Figure 1b A sectional view of a support base element 2 according to the invention is shown. The support profile 3 and the support rib 4 are fixed to each other in the region of two corners of the support rib 4 by means of fixing elements 9. Here, the support rib 4 is screwed to the support profile 3 by means of two axes which are perpendicular to each other and to the longitudinal axis of the support profile 3, in particular using T-nuts. In addition, both the support rib 4 and the support plate 5 are designed as milled parts which have particularly low error tolerances. As a result, the support plates 5 which are respectively connected to the free ends 6 of the support rib 4 are oriented precisely parallel to each other. In addition, due to the positioning pins 8 and the fixing elements 9, which are not shown in detail here, their position in planes parallel to each other on the support plates 5 is again ensured. Here, the positioning pins 8 and / or the fixing elements 9 are turned parts, while the corresponding recesses in the support plate 5 are milled in order to have the smallest possible errors in the system.

[0050] Figure 1c A schematic diagram of a support base element 2 with a modular extension according to the invention is shown. Such added elements include two support plates 5, two support ribs 4 and two support profiles 3. Such extended support profiles 3 are arranged coaxially with the two original support profiles. Such extended support ribs 4 and support plates 5 are connected to the extended support profiles 3 here, wherein the same fixing elements 9 and dowel pins 8 as already used for the original support base element 2 are used. The connection between the original support base element 2 and the extended support base element 2 is formed by two support ribs 4 facing each other. They are connected to each other, in particular also by dowel pins 8 and fixing elements 9, to ensure that extremely low error tolerances can be achieved even here. According to the invention, an adapter plate can also be arranged between the support profiles 3, which can be connected to each other and / or can be matched to the length of the support profiles 3.

[0051] Figure 2 A schematic diagram of a carrier base element 2 according to the invention with a transfer device 7 in an unconnected state is shown. In the embodiment shown, the carrier device 7 is directly connected to the carrier plate 5 and is not in direct contact with the carrier ribs 4. In order to connect the transfer device 7 and the carrier plate 5, both parts have projections 10, whose mutual contact surfaces are milled or precisely configured in another way. The parallel arrangement of the carrier plates 5 is transferred to the transfer device 7 in this way, so that it is arranged exactly parallel to the two carrier plates 5. In addition, recesses for guiding the fixing elements 9 are provided in the protruding projections 10.

[0052] Figure 3a The schematic diagram of a workbench 17 according to the invention is shown. Such a workbench has, in addition to a base, two side walls 19 and two intermediate walls 20. Furthermore, the workbench 17 has horizontally arranged transverse plates 21 in two areas delimited by the side walls 19 and the intermediate walls 20, which, like the intermediate walls 20, increase the stability of the workbench 17. Also increasing the stability of the workbench 17 is an electrical cabinet 22, which is located between one intermediate wall 20 and one side wall 19. The inspection unit 12, which is then positioned on the workbench 17 by means of the support device 1, can be supplied with power via the electrical cabinet 22. The components of the workbench 17 do not necessarily need to be precisely designed here, since tolerances in the dimensions of the components can be compensated by means of a precise support base element 2 and the connection between the support base element 2 and the workbench 17.

[0053] Figure 3bA schematic diagram of a workbench or work cabinet 17 according to the invention is shown with a supporting base element 2 according to the invention in an unconnected state. The workbench 17 is at least indirectly connected to the supporting base element 2 arranged above it via side walls 19 and intermediate walls 20. In the embodiment shown, the supporting base element 2 is directly connected to the two intermediate walls 20 of the workbench 17 via its supporting ribs 4, in particular directly screwed, wherein the outer supporting ribs 4 of the supporting base element 2 are only indirectly connected via connecting elements 18. Since the supporting base element 2 is directly connected to exactly two intermediate walls 20, the possibility of deformation or bending of the supporting base element 2 due to different heights of the intermediate walls 20 is excluded and at most results in a uniform tilting of the entire supporting base element 2. This tilting is not critical because all devices fixed to the supporting base element 2 have the same inclination with the base and therefore cannot tilt relative to each other.

[0054] Figure 3c 1 shows a schematic diagram of a workbench 17 according to the invention with a carrier base element 2 according to the invention in a connected state. Figure 3b An enlarged view of the connection between the side wall 19 of the workbench 17 and the supporting rib 4 of the supporting base element 2 is shown. The connection between the side wall 19 and the supporting rib 4 is indirectly realized via a connecting element 18. The connecting element 18 has a recess for accommodating a fixing element, in this case a screw, for the supporting rib 4 and the side wall 19. In this case, only the recess assigned to one of the two parts to be connected, here the supporting rib 4, is not designed as an elongated hole. In contrast, the recess assigned to the side wall 19 is an elongated hole to achieve position compensation. The supporting rib 4 and the side wall 19 do not have to touch each other, and a gap between them is permitted.

[0055] Figure 4a The schematic diagram of the swivel frame 11 according to the invention in the open state is shown. The swivel frame 11 consists essentially of a swivelable part and two stops 15 here. The stops 15 constitute a precise limitation of the swivel movement of the swivelable part of the swivel frame 11. The swivelable part has a free end 16, which in the closed state of the swivel frame 11 rests on the stop 15 or is accommodated by the stop 15. The swivel frame 11 is used to accommodate one or more test elements 12, which, due to the swivelability of the swivel frame 11, can be moved between an operating state and an accessible state (for example for maintenance work or replacement of the test element 12). The gas pressure spring 13 facilitates the opening and closing of the swivel frame 11, thereby protecting the stop 15 from damage.

[0056] Figure 4bA schematic diagram of the closing mechanism of the swivel frame 11 according to the invention is shown. The figure shows the two stops 15 and the swivel free end 16 of the swivel frame 11, which rests on the stops 15 or is accommodated by the stops 15 in the closed position. The surfaces that are in contact with each other in the closed state - here the positioning radii 14 that correspond to each other - are components in the sense of the invention and are therefore manufactured with minimal tolerances, in particular milled. The free end 16 of the swivel frame 11 has locking pins 23 on the side, which engage in locking openings 24 of the stops 15 in the closed state of the swivel frame 11, so that the swivel frame 11 is locked in the closed position. For release, a locking pin such as a stop is provided at the free end 16 of the swivel frame 11. Figure 5a The user can operate the button to retract the spring-prestressed locking pin 23 and pull it out of the locking opening 24. In order to make it easy for the locking pin 23 to automatically slide into the locking opening 24 when closing, the stopper 15 has inclined guide surfaces (introduction slopes), through which the locking pins 23 are gradually pressed in when closing the swivel frame 11 until they are located above the locking opening 24 and return to the locking opening.

[0057] Figure 5a The schematic diagram of the swivel frame 11 according to the invention in the closed state and without the swivel frame module 29 installed is shown. Therefore, the basic structure of the swivel frame 11 is mainly composed of a base frame 25, which is supported in the swivel part of the swivel frame 11. All required test elements 12 can be installed in a modular manner on this base frame 25 as required. In addition, the test element 12 can be replaced at any time as required. This replacement is also repeatable and does not require calibration. This is achieved in particular by the precise structure of the base frame 25 with the smallest possible error tolerance. In addition, the base frame 25 also has a positioning scale 26 as a supplement, through which the test element 12 or the swivel frame module 29 can always be installed in the same position on the base frame 25, without the need for complex documentation to record the structure of the test device. Accordingly, the swivel frame module 29 is mainly limited to being connected to the base frame 25 via this positioning scale 26 and its grooves to ensure the repeatability of the test device. Likewise, the recess of the positioning scale 26 also has the smallest possible error tolerances, which can be achieved, for example, by manufacturing the base frame 25 as a milled part.

[0058] Figure 5bA schematic diagram of a first swivel frame module 29 according to the invention is shown. The swivel frame module 29 shown consists of an inspection element 12 (a camera in the example shown) and a support, by means of which the swivel frame module 29 can be mounted on the base frame 25 of the swivel frame 11. For this purpose, the swivel frame module 29 has two positioning plates 27, which are mounted with their two ends 28 on positioning scales 26 of the base frame 25 of the swivel frame 11. Here, the positioning plates 27 are also designed particularly precisely so that the connection between the swivel frame module 29 and the base frame 25 of the swivel frame 11 is as precise and reproducible as possible. In addition, the positioning plates 27 have fixing means at their ends 28, which are oriented along the longitudinal axis of the positioning plates 27 and perpendicular to the longitudinal axis, so that the most precise connection with the base frame 25 can be established. Likewise, the positioning plates 27 each have a positioning scale 26. In this example, the inspection element 12 is indirectly connected to the positioning plates 27 via a guide rail 30. The guide rail 30 here not only allows a precise mounting of the test element 12 , but also an adjustable mounting of the test element 12 which is adjustable in height due to the mechanical guidance of the guide rail 30 .

[0059] Figure 5c A schematic diagram of a second swivel frame module 29 according to the invention is shown. This swivel frame module also has the previously described positioning plate 27 for reproducible connection with the base frame 25 of the swivel frame 11. In this embodiment, however, the swivel frame module 29 carries a conveyor 7, which can, for example, convey parts (in particular injection molded parts) from above for inspection of their bottom. Depending on the size of the parts to be inspected (in particular injection molded parts), it is also meaningful to support the conveyor 7 at an adjustable height. For this purpose, a height-adjustable adjustment unit 31 is provided. In order to further ensure the reproducibility of the arrangement, the adjustment unit 31 is connected to the positioning scale 26 of the positioning plate 27 by means of a transverse support in addition to being freely movable. As before, both the positioning plate 27 and the adjustment unit 31 are constructed with the smallest possible error tolerances.

[0060] Reference numerals list

[0061] 1 Carrying device

[0062] 2 Carrying base element

[0063] 3 Load-bearing profiles

[0064] 4 Load-bearing ribs

[0065] 5 Loading plate

[0066] 6 End of load-bearing rib

[0067] 7 Conveyor

[0068] 8 Locating pin

[0069] 9 Fixing elements

[0070] 10 Protruding protrusion

[0071] 11 Swing frame

[0072] 12 Check components

[0073] 13 Gas spring

[0074] 14 Positioning radius

[0075] 15 Stop

[0076] 16 Free end of the swing frame

[0077] 17 Workbench / Work Cabinet

[0078] 18 Connecting elements

[0079] 19 Sidewall

[0080] 20 Middle wall

[0081] 21 Horizontal plate

[0082] 22 Electrical cabinet

[0083] 23 Locking pin

[0084] 24 Locking port

[0085] 25 Base frame

[0086] 26 Positioning scale

[0087] 27 Positioning plate

[0088] 28 End of positioning plate

[0089] 29 Swivel frame module

[0090] 30 Guide Rail

[0091] 31 Adjustment unit

Claims

1. A carrier device (1) for an inspection unit, the inspection unit being used to inspect parameters of a part produced by an injection molding machine, a stamping machine, a deep drawing machine or a thermoforming machine and conveyed through the inspection unit, comprising: - a bearing base element (2) having: at least two supporting profiles (3) oriented parallel to one another, at least two supporting ribs (4) connecting the at least two supporting profiles (3) to one another, arranged perpendicularly to the longitudinal axis of the supporting profiles (3) and fixed to the supporting profiles (3), and at least two supporting plates (5) fixed to the at least two supporting ribs (4), wherein each carrier plate (5) is arranged at the end (6) of at least two carrier ribs (4), which are assigned to one of the at least two carrier profiles (3), - wherein the carrier device (1) further comprises a conveying device (7) for the parts fixed on at least two of the carrier plates (5).

2. The carrying device (1) according to claim 1, characterized in that: The support rib (4) is fixed to the support profile (3) in two directions perpendicular to each other and perpendicular to the longitudinal axis of the support profile (3), in particular by means of screw connections.

3. The carrying device (1) according to claim 1, characterized in that: Positioning pins (8) are arranged between the carrying plate (5) and the carrying rib (4) and / or between the carrying plate (5) and the conveying device (7).

4. The carrying device (1) according to claim 1, characterized in that: The carrier plates (5) are arranged in a common plane, wherein the plane is parallel to the plane spanned by the carrier profiles (3).

5. The carrying device (1) according to claim 1, characterized in that: The carrier plate (5) and the conveying device (7) have corresponding fixing elements (9), which are in particular arranged in projections (10) protruding from the carrier plate (5) or the conveying device (7) or pass through the projections.

6. The carrying device (1) according to claim 1, characterized in that: The carrier device (1) has a swivel frame (11), which is positioned above the conveying device (7) and is connected to the carrier plate (5), in particular via the positioning pins (8) and screws, wherein the swivel frame (11) can be swiveled in such a way that the inspection element (12) arranged thereon and the conveying device (7) located therebelow are accessible.

7. The carrying device (1) according to claim 1, characterized in that: The swivel frame (11) has at least one swivel force intensifier, in particular a gas pressure spring (13), and / or mutually corresponding positioning radii (14), wherein the positioning radii (14) are arranged in at least one stop (15) for the swivel frame (11) and in a swivelable free end (16) of the swivel frame (11).

8. The carrying device (1) according to claim 1, characterized in that: The carrier base element (2) has at least one inspection element (12) selected from the group consisting of: a camera, an objective lens, an illumination device, a sensor for part tracking, in particular a triggering light barrier, a sensor for part counting, in particular a counting light barrier, a conveyor belt, a blow valve, a discharge channel, a separation device, a stray light protection device, a high-voltage inspection unit, a unit for part measurement.

9. The carrying device (1) according to claim 1, characterized in that: The supporting rib (4), the supporting plate (5) and / or the fastening element (9) or parts thereof are designed as milled parts.

10. The carrying device (1) according to claim 1, characterized in that: The carrier base element (2) is indirectly connected to a fixed substrate, in particular a workbench (17) or a work cabinet, via a connecting element (18).

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