Device for injection molding of molded parts with inserts

Abstract

The invention relates to a device for injection molding a molded part with an insert, and comprises: a mold with a mold cavity; an insert loading device with an insert push rod for positioning the insert in the mold cavity; a storage magazine with inserts arranged side by side and aligned with the insert push rod; an insert feed channel terminating in the mold cavity, and the insert aligned with the insert push rod can be pushed from the storage magazine into the insert feed channel by the insert push rod. According to the invention, it is provided that: the storage magazine has a horizontally aligned insert receiving surface, which has adjacent storage positions for the inserts that match the insert contour; the storage magazine has a loading area, which has at least one freely accessible storage position so that the loading area can be mechanically loaded with the insert; in order to position the insert in the storage position aligned with the insert push rod, at least one insert stored in the loading area can be moved in the direction of the adjacent insert by a displacement device, wherein the inserts on the insert receiving surface can be pushed into the corresponding adjacent storage positions one after another.

Description

Technical Field

[0001] The invention relates to a device for injection molding a molded part having an insert. Background Art

[0002] A general form of such a device is known from DE 31 35 259 A1.

[0003] The device is an injection molding device, which has a mold with a mold cavity composed of two half molds. A metal shaft is inserted into the mold cavity as an insert through the mold and overmolded with plastic to produce a plastic gear. The molded part produced by injection molding is ejected by an ejector when the mold is opened, and a cylindrical insert located between the mold cavity and the ejector is coaxially arranged with the overmolded insert located in the mold cavity. The molded part is ejected by the feed movement of the ejector, and the insert is inserted into the position of the ejected overmolded insert in the mold cavity. Therefore, the duration of the two operations of "ejecting the molded part" and "inserting the insert" is significantly shortened, because under the action of the inserted insert, the movement of the ejector first causes the ejection of the injection-molded molded part, and then the inserted insert itself is pushed into the mold cavity.

[0004] In this known device according to DE 31 35 259 A1, a plurality of inserts are ready in feed channels of magazines extending vertically or obliquely to the vertical. In these feed channels, the inserts are arranged in rows one above the other parallel to the ejectors so that the inserts move under the effect of gravity in the direction of an ejection station at the lower end of the feed channels, where the inserts are aligned with the ejectors. To load the magazines with the inserts, the magazines are connected to a separation device via a flexible line.

[0005] In order to ensure safe operation of the device known from DE 31 35 259 A1, it is proposed to assign the piston rod of the pneumatic working cylinder to the upper end of the magazine feed channel so that the piston rod stacked on the rod-shaped inserts located in the magazine feed channel exerts feed pressure on the top insert in the working position. This is to prevent the insert from blocking its path along the feed channel under unfavorable circumstances.

[0006] In the device known from DE 31 35 259 A1, a plurality of cavities can be realized in a mold, wherein each individual cavity requires a magazine for receiving an insert.

[0007] A disadvantage of the known device according to DE 31 35 259 A1 is that, although the piston rod acts on the top insert in the magazine feed channel, jamming of the insert cannot be ruled out.

[0008] Furthermore, US 4 443 173 A describes a device for injection molding a molded part with an insert, wherein a funnel connected to the mold by a flange is filled with the insert in a random manner, wherein the ends of the funnel are parallely transformed into a plurality of channels, each of which ends in a cavity of the mold. The insert slides out of the funnel and into each channel, wherein the feed of the insert into the corresponding cavity is controlled by a mechanical device, which is activated by closing the two mold halves.

[0009] In the known device according to US Pat. No. 4,443,173 A, it is also not possible to exclude the possibility that the insert will get stuck when it enters the respective channel assigned to the mold cavity. Summary of the invention

[0010] The object of the present invention is therefore to provide a device of the type mentioned above which prevents jamming of inserts in the magazine with a high degree of reliability while still keeping the overall processing time of the injection-molded moulding short.

[0011] The object is achieved by a device according to one aspect of the present invention.

[0012] The device for injection molding a molded part with an insert comprises:

[0013] - a mold having two mold halves and at least one mold cavity,

[0014] - an insert loading device having at least one insert pusher for positioning an insert in the at least one mold cavity,

[0015] - at least one magazine having inserts arranged side by side in a row, wherein the inserts are aligned with the at least one insert push rod; and

[0016] An insert feed channel which ends in the at least one mold cavity and into which an insert aligned with the at least one insert pusher can be pushed from the at least one magazine by the insert pusher.

[0017] According to the present invention:

[0018] the magazine has a horizontally aligned insert receiving surface with adjacent storage locations for inserts, wherein the storage locations have a storage contour that matches the contour of the insert,

[0019] - the magazine has a loading area with at least one freely accessible storage location for mechanically loading the loading area with inserts; and

[0020] In order to position the insert in a storage position aligned with the insert push rod, at least one insert stored in the loading area can be moved by a displacement device in the direction of an adjacent insert, wherein the inserts on the insert receiving surface can be pushed successively into respective adjacent storage positions.

[0021] In the device according to the invention, the insert receiving surface of the magazine is mechanically loaded with inserts into a storage position provided for this purpose, wherein the insert receiving surface is aligned horizontally with respect to the mold, whereby the risk of the inserts getting stuck is significantly reduced. In order to ensure a safe position of the individual inserts on the insert receiving surface and at the same time allow each insert to be pushed into an immediately adjacent storage position, the storage position has a storage contour that matches the contour of the insert when releasing the storage position aligned with the insert push rod on the insert receiving surface.

[0022] The horizontal alignment of the insert receiving surface allows a plurality of mould cavities to be arranged in the plane of the insert receiving surface. Thus, only one storage cassette is required for a plurality of such mould cavities.

[0023] The individual inserts are pushed one after the other in a functionally reliable manner into respective adjacent storage locations, the distance between which is preferably designed such that the inserts stored in these adjacent storage locations touch one another. In the case of cylindrical inserts, which preferably have a circular cross section, this means that the distance between adjacent storage locations corresponds to the diameter of such an insert.

[0024] Due to the horizontal alignment of the insert receiving surface, loading of the insert receiving surface can be performed easily and quickly, for example mechanically by a robot, because the loading area of ​​the magazine is freely accessible, i.e. for example the loading area extends outside the mold and can therefore be reached unhindered by a robot arm.

[0025] In order to prevent the inserts from being pushed onto each other when being pushed further into the respective adjacent storage positions, it is provided according to a further embodiment that:

[0026] - the storage magazine is arranged in a fixed molded part,

[0027] - the insert receiving surface of the magazine forms a magazine inlet together with the partition wall of the fixed molded part, and

[0028] The minimum distance between the insert receiving surface and the partition wall is a few 1 / 10 mm, in particular 3 / 10 mm to 5 / 10 mm, greater than the extension of the insert perpendicular to the partition wall.

[0029] This means that, for example, in the case of a cylindrical insert with a circular cross section, the minimum distance between the insert receiving surface and the partition wall is only a few tenths of a mm greater than the diameter of such a cylindrical insert.

[0030] In a further development of the invention, the insert receiving surface has a corrugated surface structure formed by corrugation troughs and corrugation peaks, wherein the corrugation troughs are each adapted to the contour of the insert as storage contours.

[0031] The matching of the wave surface structure is carried out in such a way that the radius of the wave crest is at most equal to the radius of the wave valley, ie the wave valley representing the depression does not become too flat, thereby preventing the insert from rolling out.

[0032] An alternative to the proposed wavy surface structure comprises a sawtooth surface structure with a gently rising side and a steeply falling side, wherein the insert is arranged between the steeply falling side and the gently rising side as a storage contour on the insert receiving surface matching the contour of the insert. Preferably, the angle of the gently rising side of the sawtooth surface structure of the insert receiving surface is between 20° and 30°.

[0033] Another advantageous further development of the invention provides that

[0034] the mold has at least one further cavity which is arranged adjacent to the at least one cavity in the plane of the insert receiving surface,

[0035] - the insert loading device has at least one further insert pusher for positioning the insert in the further mould cavity, and

[0036] An insert feed channel is provided which ends in the further mold cavity, and an insert aligned with the further insert push rod can be pushed from the magazine into the insert feed channel which ends in the further mold cavity by means of the further insert push rod.

[0037] In this way, multiple mould cavities can be supplied with inserts simultaneously from a single storage cassette, wherein only the insert loading device has other insert push rods.On the contrary, according to the known device in the prior art of DE 31 35 259 A1, a storage cassette is needed for the mould cavity of each mould.

[0038] Another advantageous embodiment provides that

[0039] the mold has at least one further mold cavity, which is arranged in a plane parallel to the plane of the insert receiving surface of the at least one magazine, and

[0040] - Further magazines are arranged in the mold in parallel planes.

[0041] Therefore, there are several rows of cavities arranged in parallel and overlapping in the mold, so that a magazine is required for each row extending horizontally. Each of these magazines has a freely accessible loading area and can be loaded with inserts mechanically, for example by a single robot.

[0042] According to a further solution of the present invention, the insert loading device is designed as an ejection device, wherein the insert push rod is an ejector.

[0043] After the insert is pushed into the mold cavity by the insert pusher and the injection molding process is completed, the insert pusher ejects the injection-molded molded part from the mold by the insert pusher as an ejector when the mold is opened.

[0044] As an alternative to the last-mentioned further development, a removal device is provided, preferably a removal robot, by which the injection-moulded moulding can be removed from the mould when the mould is open.

[0045] The advantage of this device is to prevent the damage caused by falling of the molded parts. If a plurality of mold cavities are provided, these mold cavities can be stored in a nested separation (nestgetrennt) manner by this removal robot. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The present invention is described in detail below according to embodiments with reference to the accompanying drawings. In the drawings:

[0047] Figures 1 to 5 1. perspective sectional views showing a device with a mould according to a first embodiment of the present invention at different process stages of moulding,

[0048] Figure 6 Show according to Figures 1 to 5 A perspective view of a storage cassette of a device,

[0049] Figure 7 Shown in the mold according to Figures 1 to 5 A partial view of the installed cassette, and

[0050] Figure 8 Schematic diagram showing an insert receiving surface of a magazine having a sawtooth surface structure. DETAILED DESCRIPTION

[0051] according to Figures 1 to 5 , for injection molding with a cylindrical insert 11 (see Figure 5) comprises: a mold 2 with two mold halves 2.1 and 2.2 as a central component, a handling tool 20 designed as a feeding robot 20.1, the mold 2 with the insert 11 is loaded by the handling tool, a conveying device 30 for providing the insert 11 to the feeding robot 20.1, and a removal device 9 designed as a removal robot 9.1, which removes the injection molded part 10 from the opened mold 2 (see Figure 5 ).

[0052] The listed components of the device 1, namely the mold 2, the feeding robot 20.1, the conveying device 30 and the removal robot 9.1, are located in the same Figures 1 to 5 On the supporting surface corresponding to the xy plane of the coordinate system shown.

[0053] The mold 2 has two rows of three cavities (also called mold sets), namely a first horizontal row with cavities 3.11, 3.12 and 3.13, and a second row below and parallel to the first row with respect to the vertical direction (z direction) with cavities 3.21, 3.22 and 3.23. These cavities are designed as cylindrical cavities, wherein the insert 11 is aligned with the cylindrical axis of the cavity.

[0054] The mold cavities 3.11, 3.12, 3.13, 3.21, 3.22 and 3.23 are basically composed of Figure 1 The mold 2 shown is formed of a fixed mold half 2.2. The mold half 2.1 is the moving part of the mold 2.

[0055] Aligned with the cylindrical axes of the cavities 3.11, 3.12, 3.13, 3.21, 3.22 and 3.23, horizontal insert feed channels 7, 7.1 and 7.2 lead to the cavities respectively, wherein the feed channels of the cavities 3.21, 3.22 and 3.23 are not Figures 1 to 5 If the side of the mold half 2.1 with the mold cavities 3.11, 3.12, 3.13, 3.21, 3.22 and 3.23 is designated as the front, the insert feed channels 7, 7.1 and 7.2 as well as the insert feed channels for the mold cavities 3.21, 3.2 and 3.23 end at the rear of the mold half 2.2 of the mold 2.

[0056] The fixed mold half 2.2 has an insert loading device 4 which is slidable along the insert feeding channels 7, 7.1 and 7.2 (hereinafter also including the insert feeding channels of the mold cavities 3.21, 3.22 and 3.23), and the insert loading device has an insert push rod 4.1, 4.2, 4.3 for each of the insert feeding channels 7, 7.1 and 7.2, and also has an insert push rod ( Figures 1 to 5Using the inlay device 4 in the y direction, the inlay push rods 4.1, 4.2 and 4.3 are pushed into the inlay feed channels 7, 7.1 and 7.2 to insert the insert 11 into the mold cavities 3.11, 3.12 and 3.13 and / or to eject the injection molded part 10 from the mold cavities 3.11, 3.12 and 3.13 as described below (the same applies to the mold cavities 3.21, 3.22 and 3.23).

[0057] In order to feed the inserts 10, the half mold 2.2 has a storage box 5 for the first row of cavities 3.1, 3.12 and 3.13 and another storage box 6 for the cavities 3.21, 3.22 and 3.23 in the plane of the insert feed channels 7, 7.1 and 7.2 and in the plane of the insert supply channels of the cavities 3.21, 3.22 and 3.23, respectively, and the cavities are loaded with multiple cylindrical inserts 11.

[0058] The advantage of the horizontally aligned magazines 5 and 6 is that the magazines 5 and 6 can each be equipped with a plurality of adjacent moulding cavities 3.11, 3.12 and 3.13, and 3.21, 3.22 and 3.23.

[0059] The magazines 5 and 6 have a rectangular contour in the xy plane with two longitudinal sides and two short sides, wherein the longitudinal sides are aligned perpendicularly to the direction of the insert feed channels 7, 7.1 and 7.2. The two magazines 5 and 6 protrude on the end face 2.10 of the mold half 2.2 above the mold 2. This part of the magazine 5 protruding on the end face 2.10 forms a loading area 5.13, in which the inserts 11 from the conveyor device 30 are stored by the feed robot 20.1. The same applies to the other magazines 6.

[0060] When the magazine 5 is built into the mold half 2.2, the inserts 11 are installed in the magazine 5 in such a way that the inserts 11 are aligned with the insert feed channels 7, 7.1 and 7.2, respectively. Therefore, the inserts 11 stored in these positions can be pushed into the mold cavities 3.11, 3.12 and 3.13, respectively, through the insert feed channels 7, 7.1 and 7.2, respectively, by means of the insert push rods 4.1, 4.2 and 4.3, respectively. The same applies to the other magazines 6.

[0061] Figure 6 The storage box 5 is shown in detail (the same applies to the other storage boxes 6), and Figure 7 The state in which the storage cassette is built into the mold half 2.2 is shown in detail.

[0062] according to Figure 6 and Figure 7The storage box 5 comprises a support plate 5.2 with an insert receiving surface 5.1, on which the inserts 11 are stored. This insert receiving surface 5.1 provides a storage location 5.11 for each insert 11, each storage location having a storage contour 5.12 matching the outer contour of the insert 11, so that the inserts 11 are directly adjacent to each other. For this purpose, the insert receiving surface 5.1 has a surface structure formed by troughs and crests, wherein the troughs as the storage contours 5.12 of the storage locations 5.11 are adapted to the contour of the insert 11, i.e. a part of the outer surface of the insert 11 is located in the groove formed by the troughs.

[0063] The wave troughs and the wave crests therebetween have a geometry such that directly adjacent inserts 11 are adjacent to each other and in contact with each other. Thus, the distance a1 between two adjacent storage locations 5.11 corresponds to the diameter 2r of the insert 11, as Figure 7 shown.

[0064] The spacing between the cavities 3.11, 3.12 and 3.13 is an integral multiple of the diameter 2r of the insert 11, so that the insert push rods 4.2 and 4.3 are precisely aligned with the storage position 5.11 of the insert 11, that is, aligned with the valley as the storage contour 5.12.

[0065] The troughs as storage contour 5.12 are formed by circular arc-shaped troughs with radius R1 for producing the wavy surface structure of the insert receiving surface 5.1, and the crests are likewise circular arc-shaped with radius R2. In order to ensure that the grooves formed by the troughs on the insert receiving surface 5.1 do not become too flat, and thus there is a risk of the insert 11 rolling, the crests between the troughs must not be too low, because the radius R2 of the crests must not be greater than the radius R1 of the troughs (R2≤R1).

[0066] according to Figure 7 When the storage box 5 is built into the fixed half mold 2.2, a storage box inlet 2.3 is formed together with the side wall 2.30, so that the inserts 11 can start from the loading area 5.13 of the storage box 5 and be pushed from the storage position 5.11 to the adjacent storage position 5.11 through the wave crests of the surface structure via the insert receiving surface 5.1.

[0067] In order to ensure that the stroke that the insert 11 has to overcome when pushing into the adjacent storage location 5.11 does not become too large, the radius R2 of the wave crest cannot be too small. Therefore, the tangent slope of the transition from the wave trough to the wave crest should be less than 45°. Therefore, the thrust required to push the insert 11 into the adjacent storage location 5.11 should act in the direction of the sliding movement of the insert 11.

[0068] As an alternative to the corrugated surface structure, the insert receiving surface 5.1 may have a Figure 8The sawtooth surface structure shown comprises a steeply descending side and a gently ascending side, wherein the insert 11 is arranged respectively between the steeply descending side and the gently ascending side on the insert receiving surface 5.1 as a storage profile 5.12 matching the profile of the insert 11. The angle β of the gently ascending side determines the positional stability and the driving force of the insert 11 and should be between 20° and 30°. The insert 11 should be deep enough in the sawtooth profile to prevent it from rolling away, even if the tool movement causes vibrations. The tips S of the saw teeth of the sawtooth surface structure of the insert receiving surface 5.1 are rounded to avoid wear of the insert receiving surface 5.1.

[0069] In the following, within the framework of the description of the production of the molded part 10 , the loading of the magazine 5 with the inserts 11 will also be described.

[0070] Figure 1 The state of the device 1 with the open mold 1 is shown, wherein the injection molded part 10 ( Figure 1 ) are previously removed from the mold cavities 3.11, 3.12, 3.13, 3.21, 3.22 and 3.23 by the removal robot 9.1.

[0071] In the storage position 5.11 aligned with the insert feed channels 7, 7.1 and 7.2, according to Figure 1 There is no storage for insert 11. These storage locations 5.11 are in Figure 1 For clarity, the three inserts 11 are marked in “black”.

[0072] In a subsequent production step or in a subsequent processing stage, the insert 11 is pushed from the loading area 5.13 into the magazine inlet 2.3 by the displacement device 8.1 for the magazine 5, so that the insert push rods 4.1, 4.2 and 4.3 are aligned. Figure 1 The empty storage location 5.11 shown is filled with inserts 11. The same applies to the magazine 6. The inserts 11 stored there are pushed from the loading area of ​​the magazine 6 into the corresponding magazine inlet by a further displacement device 8.2.

[0073] The two displacement devices 8.1 and 8.2 have longitudinal actuators 8.11 and 8.21 and transverse actuators 8.12 and 8.22, respectively.

[0074] By means of two transverse actuators 8.12 and 8.22, the longitudinal actuators 8.21 and 8.22 are respectively moved in the y direction, i.e. in the direction of the insert push rods 4.1, 4.2 and 4.3, so that the two longitudinal actuators 8.11 and 8.21 respectively have a storage box 5 or 6, and are therefore transverse to the insert feed channels 7, 7.1 and 7.2.

[0075] By means of the longitudinal actuator 8.11, a force-locking pressure is applied to the edge side, i.e., in the direction of the adjacent inserts 11, to the last inserted insert 11, so that the respective subsequent inserts 11 are pushed successively into the adjacent storage positions 5.11 until the storage positions 5.11 aligned with the insert push rods 4.1, 4.2 and 4.3 are respectively filled with inserts 11. The same applies to the longitudinal actuator 8.21. As a result, there are no inserts 11 in the loading area 5.13 of the magazine 5 and in the corresponding loading areas of the further magazines 6. Figure 2 This state of the mold 2 is shown.

[0076] The further pushing of the insert 11 by means of the longitudinal actuator 8 . 11 is achieved by a corresponding dimensioning of the magazine inlet 2 . 3 and the corrugated surface structure of the insert receiving surface 5 . 1 of the magazine 5 and a corresponding arrangement of the further magazine 6 .

[0077] To this end, according to Figure 7 The distance a2 between the crest of the storage position 5.11 and the side wall 2.30 limiting the height in the z direction of the magazine inlet 2.3 corresponds to the diameter 2r of the circular surface of the cylindrical insert 11, so that the insert 11 can enter the adjacent storage position 5.11 via the crest. The distance a2 is only slightly larger than the diameter 2r of the insert 11, i.e. only a few 1 / 10 mm, in particular 3 / 10 mm to 5 / 10 mm.

[0078] In the case of reloading the insert 11 in the storage position 5.11, the mold 2 is closed (see Figure 3 ), the injection molding process begins, and at the same time the inserts 11 for the magazine 5 and the inserts 11 for the further magazine 6 are removed from the collecting plate 30.10 in the screw conveyor 30.1 of the conveying device 30 by the robot arm 20.2 of the feeding robot 20.1, and are respectively inserted into the loading area 5.13 of the magazine 5 and the corresponding loading area of ​​the further magazine 6, and repeated until the loading areas of the two magazines 5 and 6 are completely equipped. Prior to this, the shifting devices 8.1 and 8.2 are activated, so that the two transverse actuators 8.12 and 8.22 move the two longitudinal actuators 8.11 and 8.21 in the y direction, that is, relative to the half mold 2.2 of the mold 2, so that the feeding robot 20.1 can freely enter the loading area 5.13 of the magazine 5 and the corresponding loading area of ​​the further magazine 6.

[0079] In order to check whether both magazines 5 and 6 are completely filled with inserts 11, only a sensor is required, which monitors the last storage position 5.11 on the insert receiving surface 5.1. This last storage position 5.11 is located at the opposite end of the magazine 5 relative to the loading area 5.13. The same applies to the other magazines 6. As soon as such a sensor detects an insert 11 in the last storage position 5.11, all storage positions 5.11 in both magazines 5 and 6 must be filled with an insert 11.

[0080] The insert 11 is fed to the screw conveyor 30 . 1 by the linear feed device 30 . 2 of the conveying device 30 .

[0081] according to Figure 4 , the insert loading device 4 moves toward the half mold 2.2, whereby the insert push rods 4.1, 4.2 and 4.3 and the corresponding insert push rods of the mold cavities 3.21, 3.22 and 3.23 enter the corresponding insert feed channels 7, 7.1 and 7.2 provided for the mold cavities 3.21, 3.22 and 3.23, so that the insert 11 is pushed into the mold cavities 3.11, 3.12, 3.13, 3.21, 3.22 and 3.23 from the storage position aligned with the corresponding insert push rod. This state of the mold 2 is also as shown in FIG. Figure 4 shown.

[0082] When the injection molding process is completed, the injection molded part 10 is ejected together with the insert push rods 4.1, 4.2 and 4.3 and the corresponding insert push rods for the mold cavities 3.21, 3.22 and 3.23 using the insert loading device 4. To this end, the insert loading device 4 is configured as an ejection device having the insert push rods 4.1, 4.2 and 4.3 and the corresponding insert push rods for the mold cavities 3.21, 3.22 and 3.23 as ejectors.

[0083] according to Figure 4 The insert push rods 4.1, 4.2 and 4.3 and the corresponding insert push rods for the mold cavities 3.21, 3.22 and 3.23 are designed so that the insert loading device 4 is not completely moved into the mold half 2.2 ( Figure 4 2.2), while the distance between the insert loading device 4 and the mold half 2.2 still exists. This intermediate position is defined by a push-back pin (not shown in the figure), which is supported on the fixed mold half 2.2 when the mold 2 is closed. This limits the position of the insert loading device 4. In order to eject the molded part 10 when the mold 2 is open, the insert loading device 4 is fully moved to the mold half 2.2 by overcoming the above-mentioned distance, whereby the molded part 10 is ejected, for example, onto a conveyor belt by means of the insert push rods 4.1, 4.2 and 4.3 and the corresponding insert push rods for the mold cavities 3.21, 3.22 and 3.23.

[0084] Subsequently, the insert loading device 4 is moved in the opposite direction to the mold half 2.2, whereby the insert push rods 4.1, 4.2 and 4.3 are pulled out of the insert feed channels 7, 7.1 and 7.2 (and the corresponding insert push rods for the mold cavities 3.21, 3.22 and 3.23), so that the storage locations 5.11 aligned with these insert push rods are empty, i.e. without inserts 11. These free storage locations 5.11 are Figure 5 The area marked in black.

[0085] If the ejection distance of the insert push rods 4.1, 4.2 and 4.3 and the corresponding insert push rods for the mold cavities 3.21, 3.22 and 3.23 is shortened, the molded parts 10 are not ejected onto the conveyor belt, but are removed from the mold cavities 3.11, 3.12, 3.13, 3.21, 3.22 and 3.23 by the removal robot 9.1. For this purpose, the removal robot 9.1 has a removal adapter 9.2, by which six molded parts 10 can be removed from the mold half 2.2 at the same time.

[0086] Reference numerals list

[0087] 1Injection molding device

[0088] 2 Mould

[0089] 2.1 Half mold of mold 2

[0090] 2.10 Side wall of half mold 2.1

[0091] 2.2 Half mold of mold 2

[0092] 2.3 Storage box inlet for half mold 2.1

[0093] 2.30 Side wall of the half mold 2.1 defining the inlet 2.3 of the storage cassette

[0094] 3.11 Cavity of Mold 2

[0095] 3.12 Additional Cavities

[0096] 3.13 Additional Cavities

[0097] 3.21 Additional Cavity

[0098] 3.22 Additional Cavity

[0099] 3.23 Additional Cavity

[0100] 4Insert loading device

[0101] 4.1 Insert push rod of insert loading device 4

[0102] 4.2 Insert push rod of insert loading device 4

[0103] 4.3 Insert push rod of insert loading device 4

[0104] 5 Storage Boxes

[0105] 5.1 Insert receiving surface

[0106] 5.11 Storage location of insert receiving surface 5.1

[0107] 5.12 Storage location 5.11 Storage profile

[0108] 5.13 Loading area of ​​magazine 5

[0109] 5.2 Support plate of storage box 5

[0110] 6 additional storage boxes

[0111] 7 Insert feed channel

[0112] 7.1 Additional insert feed channels

[0113] 7.2 Additional insert feed channels

[0114] 8.1 Shifting device

[0115] 8.11 Longitudinal actuator of displacement device 8.1

[0116] 8.12 Transverse actuator of displacement device 8.1

[0117] 8.2 Additional shifting devices

[0118] 8.21 Longitudinal actuator of the additional displacement device 8.2

[0119] 8.22 Additional displacement device 8.2 Transverse actuator

[0120] 9Remove the device

[0121] 9.1 Removing a robot

[0122] 9.2 Removing the adapter

[0123] 10 Molded parts

[0124] 11 Insert of molded part 10

[0125] 20 Operation tools

[0126] 20.1 Feeding Robot

[0127] 20.2 Feeding robot 20.1 Robot arm

[0128] 30Conveying device

[0129] 30.1 Screw conveyor of conveying device 30

[0130] 30.10 Collection plate of screw conveyor 30.1

[0131] 30.2 Linear feed device of conveying device

[0132] a1 distance

[0133] a2 distance

[0134] a3 distance

[0135] R1 Radius of the trough

[0136] R2 The radius of the peak

[0137] r Radius of insert 11

[0138] The tip of the sawtooth profile of the S insert receiving surface 5.1

[0139] βThe angle of the gently rising side of the sawtooth profile.

Claims

1. A device (1) for injection molding a molded part (10) having an insert (11), comprising: - a mould comprising two mould halves (2.1, 2.2) and having at least one mould cavity (3.1), - an insert loading device (4) having at least one insert push rod (4.1) for positioning an insert (11) in at least one mold cavity (3.11), - at least one storage magazine (5) having inserts (11) arranged side by side in a row, wherein the inserts (11) are aligned with the at least one insert push rod (4.1); as well as - an insert feed channel (7) which ends in the at least one mold cavity (3.11) and into which an insert (11) aligned with the at least one insert pusher (4.1) can be pushed from the at least one storage magazine (5) by means of the insert pusher (4.1), It is characterized in that - the magazine (5) has a horizontally aligned insert receiving surface (5.1) with an adjacent storage location (5.11) for an insert (11), wherein the storage location (5.11) is designed with a storage contour (5.12) that matches the contour of the insert (11), - the magazine has a loading area (5.13) with at least one freely accessible storage location (5.11) for mechanically loading the loading area with inserts (11), and – In order to position an insert (11) in a storage position (5.11) aligned with the insert push rod (4.1), at least one insert (11) stored in the loading area (5.13) can be moved in the direction of an adjacent insert (11) by a displacement device (8.1), wherein the inserts (11) on the insert receiving surface (5.1) can be pushed successively into corresponding adjacent storage positions (5.11).

2. The device (1) according to claim 1, It is characterized in that The distance (a1) between adjacent storage locations (5.11) is designed so that the inserts (11) stored in the adjacent storage locations (5.11) are in contact with each other.

3. The device (1) according to claim 1 or 2, It is characterized in that - the storage cassette (5) is arranged in a fixed molded part, - the insert receiving surface (5.1) of the magazine (5) forms a magazine inlet (2.3) together with the partition wall (2.30) of the fixed molded part, and - the minimum distance between the insert receiving surface (5.1) and the partition wall (2.30) is a plurality of 1 / 10 mm greater than the extension of the insert (11) perpendicular to the partition wall (2.30).

4. The device (1) according to claim 3, It is characterized in that The minimum distance between the insert receiving surface (5.1) and the partition wall (2.30) is 3 / 10 mm to 5 / 10 mm greater than the extension of the insert (11) perpendicular to the partition wall (2.30).

5. The device (1) according to claim 1, It is characterized in that The insert receiving surface (5.1) has a corrugated surface structure consisting of wave valleys and wave peaks, wherein the wave valleys serve as storage contours (5.12) and match the contour of the insert (11).

6. The device (1) according to claim 5, It is characterized in that The radius (R2) of the wave crest of the wave surface structure of the insert receiving surface (5.1) is at most equal to the radius (R1) of the wave trough.

7. The device (1) according to claim 1, It is characterized in that The insert receiving surface (5.1) has a sawtooth surface structure with a gently rising side and a steeply falling side, wherein the inserts (11) are arranged between the steeply falling side and the gently rising side of a storage contour (5.12) on the insert receiving surface (5.1) that matches the contour of the insert (11).

8. The device (1) according to claim 7, It is characterized in that The gently rising side of the sawtooth surface structure of the insert receiving surface (5.1) is between 20° and 30°.

9. The device (1) according to claim 1, It is characterized in that the mold (2) has at least one further mold cavity (3.12), which is arranged adjacent to the at least one mold cavity (3.11) in the plane of the insert receiving surface (5.1), - the insert loading device (4) has at least one further insert pusher (4.2) for positioning the insert (11) in the further mould cavity (3.12), and An insert feed channel (7.1) terminating in the further mold cavity (3.12) is provided, and an insert (11) aligned with the further insert push rod (4.2) can be pushed from the storage magazine (5) into the insert feed channel terminating in the further mold cavity by means of the further insert push rod (4.2).

10. The device (1) according to claim 1, It is characterized in that - the mold (2) has at least one further mold cavity (3.21), which is arranged in a plane parallel to the plane of the insert receiving surface (5.1) of the at least one magazine (5), and A further storage magazine (6) is arranged in the mold (2) in the parallel plane.

11. The device (1) according to claim 1, It is characterized in that The insert loading device (4) is designed as an ejection device, wherein the insert push rods (4.1, 4.2) are ejectors.

12. The device (1) according to claim 1, It is characterized in that A removal device (9) is provided, by means of which the injection-molded molded part (10) can be removed from the mold (2) when the mold (2) is open.

13. The device (1) according to claim 1, It is characterized in that The insert (11) is designed to be cylindrical.

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