Knob hot stamping apparatus suitable for different side slopes

Abstract

This invention discloses a knob hot stamping device suitable for different side angles, relating to the field of hot stamping technology. It includes a first mounting base, a first mounting frame, a left-right moving mechanism, a printing die, and a tilt angle adjustment mechanism mounted on the first mounting base. The first mounting base is provided with a bearing seat that can be adjusted left-right. Multiple knob pins spaced apart along the left-right direction are rotatably mounted on the bearing seat, with different front-to-back tilt angles on each knob pin. The tilt angle adjustment mechanism has a tilt angle adjustment end, on which a second mounting frame is mounted. The second mounting frame is provided with a front-to-back moving mechanism, which adjusts the tilt angle of the second mounting frame. A face pressing head is rotatably connected to the moving end of the front-to-back moving mechanism to press the knob against the corresponding knob pin. Without changing the printing die, the device can be expanded to accommodate knobs with different side angles for hot stamping according to increased demand.

Description

Technical Field

[0001] This invention relates to the field of hot stamping technology, specifically to a knob hot stamping device suitable for different side angles. Background Technology

[0002] Currently, the equipment used for hot stamping knobs has a structure similar to the Chinese invention "A Method and Equipment for Hot Stamping" with authorization announcement number CN102381016B. After the knob is fixed on the knob sleeve, the driving device drives the knob to rotate. After the character mold guide body drives the printing mold to press on the knob, the rotation transmission part on the knob sleeve drives the printing mold to move linearly to achieve hot stamping.

[0003] The structure of the knob used is as follows: Figure 1 As shown, there is a cap 11, and the outer side of the cap 11 (the cap body 11 part) is the area that needs to be hot-stamped.

[0004] As user needs continue to improve and products are constantly being upgraded, the design of the side slope of the knob has broken through the traditional single type, and knobs with different side slopes have appeared.

[0005] Different lateral slopes mean that the slope of the outer side of the cap is different. For example... Figure 1 As shown, for example, when the slope is 0°, the outer side (body part) of the cap 11 resembles a cylindrical structure; as Figure 2 As shown, for example, when the slope is greater than 0°, the outer side (body part) of the cap 11 resembles a frustum structure, which is inclined towards the central axis.

[0006] Since the printing mold is rarely replaced, the equipment currently used for hot stamping knobs is limited by its own structure, which means it can only be applied to knobs with one side slope and cannot be expanded to be applied to knobs with different side slopes according to the expansion needs. Summary of the Invention

[0007] To overcome the shortcomings mentioned above, this invention aims to provide a knob hot stamping device that can be expanded to be applied to knobs with different side angles according to expansion needs without changing the printing mold.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a knob hot stamping device suitable for different side slopes, comprising a first mounting base, a first mounting frame, a left-right moving mechanism, a printing die, a tilt angle adjustment mechanism, and a front-back moving mechanism; the first mounting base is mounted on the moving end of the left-right moving mechanism, and the first mounting base is provided with a bearing seat that can be adjusted left and right; a plurality of knob inserts are rotatably arranged on the bearing seat at intervals along the left-right direction, and at least some of the knob inserts have a different front-back tilt angle than others; the front end of the knob insert has a positioning slot for insertion and positioning with the knob rod, and the rear end of the knob insert has a rotation transmission part; the first mounting frame has a horizontal receiving part that is in transmission contact with the rotation transmission part, used to transmit the rotation... The left and right displacement of the transmission unit is converted into a rotation angle; the printing mold is located above the knob that has been inserted into the knob post, and the printing mold is set left and right. The printing mold is driven by a vertical moving mechanism to press the hot stamping medium located between the printing mold and the knob onto the side of the knob; the tilt angle adjustment mechanism is installed on the first mounting base. The tilt angle adjustment mechanism has a tilt angle adjustment end, and a second mounting bracket is installed on the tilt angle adjustment end. The front and rear moving mechanism is set on the second mounting bracket. The tilt angle adjustment mechanism is used to adjust the tilt of the second mounting bracket, thereby adjusting the tilt of the front and rear moving mechanism and the end face pressing head installed on it; the moving end of the front and rear moving mechanism is rotatably connected to an end face pressing head for pressing the knob onto the corresponding knob post.

[0009] As a further aspect of the present invention, it also includes a feeding mechanism; the feeding mechanism includes a third mounting frame, a front and rear feeding assembly, and a top and bottom feeding assembly, the front and rear feeding assembly and the top and bottom feeding assembly are combined to drive the third mounting frame to move back and forth and up and down; a first rotation adjustment device is mounted on the third mounting frame, the rotation axis of the rotating end of the first rotation adjustment device is set to the left and right direction, a fourth mounting frame is mounted on the rotating end of the first rotation adjustment device, and a knob pneumatic gripper is provided on the fourth mounting frame, the knob pneumatic gripper has two gripping fingers that can approach each other for gripping the knob.

[0010] As a further aspect of the present invention: the direction of movement of the piston of the cylinder of the knob pneumatic gripper is perpendicular to the direction of rotation of the rotation axis of the first rotation adjustment device, and the direction in which the two grippers approach each other is perpendicular to the direction of movement of the piston of the cylinder of the knob pneumatic gripper.

[0011] As a further aspect of the present invention: a clamping seat is connected to the clamping finger, and a clamping plate is rotatably connected to the clamping seat. The clamping plate rotates in the direction of approaching / moving away from the other clamping finger. The clamping seat is also provided with a reset member for resetting the clamping plate to rotate in the direction of approaching the other clamping finger.

[0012] As a further aspect of the present invention: the bottom of the clamping plate is rotatably connected to the clamping seat, and the clamping seat has a stop portion that restricts the top of the clamping plate from rotating excessively.

[0013] As a further aspect of the present invention: the inner top surface of the knob cap also has a positioning part; a second rotation adjustment device is installed on the fourth mounting bracket, the rotation axis of the rotating end of the second rotation adjustment device is perpendicular to the rotation axis of the rotating end of the first rotation adjustment device, the knob pneumatic gripper is installed on the rotating end of the second rotation adjustment device, and the moving direction of the piston of the cylinder of the knob pneumatic gripper is the same as the orientation of the rotation axis of the rotating end of the second rotation adjustment device; the feeding mechanism also includes a knob direction positioning device; the knob direction positioning device includes a fifth mounting bracket installed on the machine base, a first positioning seat is installed on the fifth mounting bracket, and a second positioning seat is slidably arranged on the first positioning seat; an elastic reset member is provided between the first positioning seat and the second positioning seat, which is used to elastically deform when the second positioning seat slides downward, so as to drive the second positioning seat to reset upward; The second positioning seat has a first slot formed for the guide rod of the knob to be inserted; a position sensor is installed on the fifth mounting bracket; a spring positioning groove is formed on the top side of the first positioning seat, and a connecting groove penetrating the bottom side of the spring positioning groove is formed on the bottom side of the first positioning seat; the knob direction positioning device also includes a connecting rod, the middle section of which is located in the spring positioning groove and is fitted with a detection reset spring, the upper end of which has a spring anti-disengagement part, and the lower end of which passes downward through the connecting groove and is connected to an upward limiting member, which is used to resist the first positioning seat and thus limit the excessive upward movement of the connecting rod; the upper end of the connecting rod is connected to a top post that presses upward with the positioning part of the knob, and the lower end of the connecting rod is connected to a trigger for cooperating with the position sensor; when the knob rod is inserted into the first slot and pressed down, causing the positioning part of the knob to press down on the top post accordingly, the trigger is driven downward to the sensing trigger area of ​​the position sensor.

[0014] As a further aspect of the present invention: a vacuum nozzle for sucking up the end face of the knob is installed on the fourth mounting bracket.

[0015] As a further aspect of the present invention, the feeding mechanism also includes a knob-feeding vibratory feeder, the outlet of which is arranged through the structure of the knob's rod.

[0016] As a further aspect of the present invention: the tilt angle adjustment mechanism has a second mounting base disposed on the first mounting base, and a tilt angle adjustment pad is replaceably disposed on the second mounting base. The top side of the tilt angle adjustment pad is the angle adjustment side. The tilt angle adjustment end of the tilt angle adjustment mechanism is a connecting block located above the angle adjustment side. The connecting block is detachably connected to the second mounting base, and the tilt angle of the connecting block relative to the second mounting base is adjusted by the angle adjustment side of the replaceable tilt angle adjustment pad.

[0017] As a further aspect of the present invention: a connecting screw hole is formed on the second mounting base; a first mounting hole corresponding to the connecting screw hole is formed through the tilt angle adjustment pad vertically; a second mounting hole corresponding to the first mounting hole is formed through the connecting block vertically; the second mounting hole extends front to back; a third mounting hole is formed at the end of the second mounting hole away from the tilt angle adjustment pad; an arc-shaped connecting surface recessed towards the second mounting hole is formed at the connection between the third mounting hole and the second mounting hole; a connecting rod is provided; one end of the connecting rod has a threaded portion that passes through the third mounting hole, the second mounting hole, and the first mounting hole and mates with the connecting screw hole; the other end of the connecting rod has a limiting portion for restricting the connecting rod from completely passing through the second mounting hole; the side of the limiting portion facing the threaded portion has an arc-shaped abutting surface that mates with the arc-shaped connecting surface; wherein, the front-to-back width of the third mounting hole is greater than the front-to-back width of the limiting portion.

[0018] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the knob, with a side slope of 0°.

[0021] Figure 2 This is another structural diagram of the knob, with a side slope greater than 0°;

[0022] Figure 3 This is a schematic diagram of the structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the printing mold structure in this invention;

[0024] Figure 5 This is a schematic diagram of the left-right movement mechanism and the tilt angle adjustment mechanism in this invention;

[0025] Figure 6 This is a cross-sectional view of the connecting rod in this invention;

[0026] Figure 7 This is a schematic diagram of the bearing housing structure in this invention;

[0027] Figure 8This is a schematic diagram of a knob inserted into a knob post. In the diagram, the top of the cap of the knobs with different side slopes is horizontal.

[0028] Figure 9 This is a schematic diagram of the feeding mechanism in this invention;

[0029] Figure 10 This is a schematic diagram of the knob direction positioning device in this invention;

[0030] Figure 11 This is a cross-sectional view of the knob direction positioning device in this invention;

[0031] Figure 12 This is a schematic diagram of the structure of the knob-operated pneumatic gripper in this invention. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1-12 A knob hot stamping device suitable for different side slopes, capable of hot stamping various knobs (1a, 1b) with different side slopes.

[0034] The structure of the knob used is as follows: Figure 1 , 2 As shown, there is a cap 11, and the outer side of the cap 11 (the cap body 111 part) is the area to be hot-stamped.

[0035] Different lateral slopes mean that the slope of the outer surface of the cap 11 is different. For example, when the slope is 0°, such as Figure 1 As shown, the outer side (body portion) of the cap 11 resembles a cylindrical structure. For example, when the slope is greater than 0°, as... Figure 2 As shown, the outer side (body part) of the cap 11 resembles a frustum structure, which is inclined towards the central axis.

[0036] The inner top surface (top 112 portion) of the cap 11 has a rod 12. The length direction of the rod 12 is the same as the length direction or height direction of the outer side of the cap 11 when it is similar to a cylindrical structure, and the rod 12 is usually located on the central axis of the cap body 111.

[0037] One use of the lever 12 is to enable the knob 1 to be mounted on a corresponding device or mechanical structure.

[0038] The cross-sectional shape of the outer side of the pole 12 is an elliptical structure composed of two straight sides and two semi-circular sides. In track and field, this type of track is also directly referred to as an ellipse.

[0039] This knob hot stamping device 2 includes a first mounting base 21, a first mounting frame 22, a left-right moving mechanism 23, a printing mold 24, a tilt angle adjustment mechanism 25, and a front-back moving mechanism 26.

[0040] like Figure 4 , 5 As shown, the left and right moving mechanism 23 can be a hydraulic push rod slider moving mechanism that guides left and right movement. The hydraulic push rod slider moving mechanism has left and right guide rails 231 mounted on the machine base 28. A first slider 232 is slidably mounted on the left and right guide rails 231. The piston rod of the hydraulic push rod 233 of the hydraulic push rod slider moving mechanism is connected to the first slider 232, which drives the first slider 232 to move left and right accordingly. The moving end of the left and right moving mechanism can be the first slider 232 of the hydraulic push rod slider moving mechanism.

[0041] The first mounting base 21 is provided with a bearing seat 211 that can be adjusted left and right for its mounting position. Multiple knob posts 212 are rotatably provided on the bearing seat 211 and spaced apart in the left and right direction.

[0042] like Figure 5 , 7 As shown, the installation position can be adjusted left or right in the following ways:

[0043] A third mounting base 213 is mounted on the first mounting base 21. A left-right sliding rail 214 is formed on the third mounting base 213. A second slider 215 is slidably mounted on the sliding rail 214. A bearing seat 211 is mounted on the second slider 215. The top of the second slider 215 extends upward beyond the sliding rail 214 and is connected to the bearing seat 211.

[0044] The slide rail 214 is preferably an inverted T-shaped anti-slip device.

[0045] The third mounting base 213 has multiple limiting positions 216 spaced apart on the left and right. The limiting positions 216 are used for the detachable installation of the position limiting block 217. The second slider 215 is positionally limited by the corresponding position limiting block 217 to limit the second slider 215 to the corresponding position on the slide rail 214. The position of the second slider 215 can be changed by the detachable installation of the position limiting block 217, so that the bearing seat 211 installed on the second slider 215 can be adjusted left and right to adjust its installation position.

[0046] The spacing of the limiting position 216 is related to the spacing of the knob socket 212.

[0047] At least some of the knob posts have a different front-to-back tilt angle than other knob posts.

[0048] The front end of the knob insert 212 has a positioning slot 218 for insertion and positioning with the knob rod 12. The knob can be pre-positioned by inserting the rod 12 into the positioning slot 218.

[0049] The rear end of the knob plug 212 has a rotation transmission part 219; the first mounting bracket 22 has a horizontal receiving part 221 that is in transmission contact with the rotation transmission part 219, which converts the left and right displacement of the rotation transmission part 219 into a rotation angle, so that the knob plug 212 rotates simultaneously when the knob plug 212 moves left and right with the bearing seat 211 driven by the left and right moving mechanism 23.

[0050] The rotation transmission unit 219 can be a gear connected to the rear end of the knob plug 212, and the horizontal transmission unit 221 corresponds to a rack mounted on the first mounting bracket 22. The rack is arranged left and right. When the knob plug 212 is driven to move left and right, the rack remains stationary. The force applied by the rack to the gear causes the knob plug 212 to be simultaneously subjected to force and rotate on the bearing seat 211.

[0051] The printing mold 24 is located above the knob that has been inserted into the knob post 212. The printing mold 24 is arranged left and right. The printing mold 24 is driven by a vertical moving mechanism 241, which is used to press the hot stamping medium located between the printing mold 24 and the knob onto the side of the knob.

[0052] The up-and-down moving mechanism 241 can be a hydraulic moving mechanism, a motor screw moving mechanism, an electric push rod moving mechanism, or other electrically controlled up-and-down moving mechanism installed on the machine base 28. The printing mold 24 is installed on the moving end of the up-and-down moving mechanism 241. When the up-and-down moving mechanism 241 drives the printing mold 24 to move downward, the printing mold 24 can press the hot stamping medium located between the printing mold 24 and the knob onto the outer surface of the knob.

[0053] The printing die 24 is connected to a heat source, enabling it to perform hot stamping. The hot stamping medium can be a plastic film, which is pressed onto the outer surface of the knob by the printing die 24. Figure 4 As shown, the machine base has an unwinding frame 242 and a rewinding frame 243 located on the left and right sides of the printing mold 24, which are used to unwind and rewind the hot stamping medium after hot stamping.

[0054] With the printing mold 24 unchanged, the different front and rear tilt angles of the knob insert 212 allow knobs with different side tilt angles to be inserted into the corresponding knob insert positioning slots via their rods, such as... Figure 8As shown, the top of the cap of the knob (1a, 1b) in the plugged state is set horizontally so that it can be matched with the printing mold 24 for hot stamping.

[0055] During hot stamping, the rotating knob pin 212 drives the knob 1 to rotate. Even knobs with different side angles can be adjusted in position by multiple knob pins with the same front and rear angles, so that the printing mold 24 is always pressed on the top of the knob in the plugged state, that is, the horizontal part, ensuring that knobs with different side angles can be successfully hot stamped.

[0056] The tilt angle adjustment mechanism 25 is mounted on the first mounting base 21. The tilt angle adjustment mechanism 25 has a tilt angle adjustment end, and a second mounting bracket 252 is mounted on the tilt angle adjustment end.

[0057] The forward and backward moving mechanism 26 is mounted on the second mounting bracket 252. The moving end of the forward and backward moving mechanism 26 is rotatably connected to an end face pressing head 261 for pressing the knob 1 onto the corresponding knob post 212. Under the drive of the forward and backward moving mechanism 26, the knob 1 is pressed onto the corresponding knob post 212.

[0058] The tilt angle adjustment mechanism 25 is used to adjust the tilt of the second mounting bracket 252, thereby adjusting the tilt of the front and rear moving mechanism 25 and the end face pressing head 261 mounted thereon, so that the end face pressing head 261 can press the end face (outer side of the cap top 112) of the knob inserted into the knob plug with different front and rear tilt angles.

[0059] When the left and right moving mechanism 23 drives the first mounting base 21 to move left and right, the bearing seat 211 and the end face pressing head 261 are also driven to move left and right accordingly. When the knob plug 212 rotates, the end face pressing head 261, whose front and rear tilt has been adjusted by the tilt angle adjustment mechanism 25, can rotate with the knob plug 212, ensuring that the rotating knob can be pressed against the knob plug with different front and rear tilt angles.

[0060] like Figure 5 As shown, the tilt angle adjustment mechanism has a second mounting base 253 disposed on the first mounting base 21, and a tilt angle adjustment pad 254 is replaceably disposed on the second mounting base 253. The top side of the tilt angle adjustment pad 254 is the angle adjustment side 2541.

[0061] The tilt angle adjustment end of the tilt angle adjustment mechanism 25 is a connecting block 251 located above the angle adjustment side 2541. The connecting block 251 is detachably connected to the second mounting base 253, and the tilt angle of the connecting block 251 relative to the second mounting base 253 is adjusted by the angle adjustment side 2541 of the replaceable tilt angle adjustment pad 254.

[0062] like Figure 6 As shown, the detachable connection between the connecting block 251 and the second mounting base 253 can be:

[0063] The second mounting base 253 has a connecting screw hole 2531 formed on it. The tilt angle adjustment pad 254 has a first mounting hole 2542 corresponding to the connecting screw hole 2531 running through it vertically. The connecting block 251 has a second mounting hole 2511 corresponding to the first mounting hole 2542 running through it vertically. The second mounting hole 2511 extends back and forth. The end of the second mounting hole 2511 away from the tilt angle adjustment pad 254 is expanded to form a third mounting hole 2512. At the connection between the third mounting hole 2512 and the second mounting hole 2511, an arc-shaped connecting surface 2513 is formed that is recessed towards the second mounting hole 2511.

[0064] The device is equipped with a connecting rod 255. One end of the connecting rod 255 has a threaded portion 2551 that passes through the third mounting hole 2512, the second mounting hole 2511, and the first mounting hole 2542 and mates with the connecting screw hole 2531. The other end of the connecting rod 255 has a limiting portion 2552 that restricts the connecting rod 255 from completely passing through the second mounting hole 2511. The limiting portion 2552 has an arc-shaped abutting surface 2553 that mates with the arc-shaped connecting surface 2513 on the side facing the threaded portion 2551. The front-to-back width of the third mounting hole 2512 is greater than the front-to-back width of the limiting portion 2552.

[0065] The connecting rod 255 can simultaneously connect the tilt angle adjustment pad 254 and the connecting block 251 to the second mounting base 253, ensuring that the tilt angle adjustment pad 254 is not prone to displacement or detachment.

[0066] The setting of the limiting part 2552, the arc-shaped abutting surface 2553, the third mounting hole 2512 and the arc-shaped connecting surface 2513 ensures that the tight fit between the limiting part 2552 and the connecting block 251 can still be well maintained when different tilt angle adjustment pads are replaced, thus ensuring the stability of the connection between the connecting block 251 and the second mounting base 253.

[0067] Different tilt angle adjustment pads indicate different front and rear tilt angles on the aforementioned angle adjustment side.

[0068] Preferably, a pressure head avoidance moving mechanism 256 is installed on the second mounting bracket 252, and the front and rear moving mechanism 26 is installed on the moving end of the pressure head avoidance moving mechanism 256. The moving end of the pressure head avoidance moving mechanism 256 moves perpendicular to the pressure direction of the end face pressure head on the knob.

[0069] Figure 4 , 5As shown, the pressing head avoidance movement mechanism 256 is a cylinder slider avoidance movement mechanism mounted on the second mounting bracket 252. This cylinder slider movement mechanism drives the slider to move up and down. The forward and backward movement mechanism 26 is a cylinder forward and backward movement mechanism mounted on the slider that moves up and down. The piston rod of the cylinder forward and backward movement mechanism extends backward and is connected to a connector. The end face pressing head is rotatably connected to the connector. The forward and backward movement mechanism drives the end face pressing head backward to press the knob onto the corresponding knob insert.

[0070] The clamping head displacement mechanism 256 can drive the front and rear moving mechanism 26 and the end face clamping head 261 to move up and down as a whole to form a clearance action, so that the front of the knob insert 212 can have a large operating space after the aforementioned clearance, which facilitates operations such as inserting the knob into the knob insert for loading, and removing the hot-stamped knob from the knob insert for unloading.

[0071] In this embodiment of the invention, the knob hot stamping device 2 also includes a feeding mechanism 27.

[0072] The feeding mechanism 27 includes a third mounting frame 271, a front and rear feeding assembly 272, and an upper and lower feeding assembly 273. The front and rear feeding assembly 272 and the upper and lower feeding assembly 273 are combined to drive the third mounting frame 271 to move back and forth and up and down.

[0073] like Figure 9 As shown, the upper and lower feeding assembly 273 can be a motor screw assembly for the upper and lower driving slider mounted on the machine base. The slider of the upper and lower feeding assembly 273 has a mounting plate. The front and rear feeding assembly 272 can be a motor screw assembly for the front and rear driving slider mounted on the mounting plate. The third mounting bracket 271 is connected to the slider of the front and rear feeding assembly 272.

[0074] The third mounting bracket 271 is equipped with a first rotation adjustment device 274, which can be a rotation adjustment device using an electric motor as a power source. The rotation axis of the rotating end of the first rotation adjustment device 274 is oriented left and right.

[0075] A fourth mounting bracket 275 is installed on the rotating end of the first rotation adjustment device 274. A knob pneumatic gripper 276 is provided on the fourth mounting bracket 275. The knob pneumatic gripper 276 has two gripping fingers 2761 that can approach each other to grip the knob 1. When the two gripping fingers approach each other, they can clamp the cap of the knob.

[0076] The first rotation adjustment device 274 is used to drive the fourth mounting bracket 275 to rotate up and down. On the one hand, it can adjust the front and back tilt of the rod when the knob 1 is finally inserted into the corresponding knob post 212, so as to enable the knob to be inserted and fed with knob posts with different front and back tilts. On the other hand, it can adjust the position of the knob pneumatic gripper 276 to facilitate the gripping of the knob from the material area with the knob.

[0077] The first rotation adjustment device 274, together with the front and rear feeding components 272 and the upper and lower feeding components 273, enables the knob pneumatic gripper 276 to grip the knob 1 from the front material area and move it backward to finally insert it into the corresponding knob plug 212.

[0078] The direction of piston movement of the cylinder of the knob pneumatic gripper 276 is perpendicular to the orientation of the rotation axis of the rotating end of the first rotation adjustment device 274.

[0079] The direction in which the two gripper fingers 2761 approach each other is perpendicular to the direction of movement of the piston of the cylinder of the rotary pneumatic gripper 276.

[0080] To accommodate knobs with different lateral inclinations, a clamping seat 2762 is connected to the clamping finger 2761. A clamping plate 2763 is rotatably connected to the clamping seat 2762. The clamping plate 2763 rotates toward / away from the other clamping finger. The clamping seat 2762 is also provided with a reset element for rotating the clamping plate 2763 toward the other clamping finger. The reset element can be a torsion spring set on the rotating shaft of the clamping plate 2763.

[0081] When the clamp 2763 rotates in a direction away from the other finger, the rotation state of the clamp can also be understood as outward turning; when the clamp 2763 rotates in a direction closer to the other finger, the rotation state of the clamp can also be understood as inward turning.

[0082] like Figure 12 As shown, the bottom of the clamping plate 2763 is rotatably connected to the clamping seat 2762, and the clamping seat 2762 has a stop portion 2764 that limits the excessive rotation of the top of the clamping plate 2763.

[0083] When the knob is clamped with a side slope of 0°, the two clamping plates flip outward to the maximum working angle; the maximum side slope that can be clamped is determined by the position of the stop part 2764 when the stop plate 2763 is reset.

[0084] The two rotatable clamps on the two fingers combine to accommodate the clamping of knobs with different side angles.

[0085] The feeding mechanism 27 also includes a knob-feeding vibratory feeder 277, the outlet 2771 of which is arranged through the structure of the knob rod 12.

[0086] The outlet 2771 of the knob-feeding vibratory feeder 277 has an arrangement track that mates with the two straight sides (the two straight edges in the cross-sectional shape of the outer side of the rod) of the rod 12, so that the knobs are arranged sequentially. The knobs being discharged at this time have two possibilities: one is arranged in a forward direction, and the other is arranged in a reverse direction. The forward and reverse arrangement indicates that the two semi-circular sides (the two semi-circular edges in the cross-sectional shape of the outer side of the rod) are discharged in different orders.

[0087] When the pattern to be hot-stamped is asymmetrical, that is, when it is necessary to distinguish the hot-stamping position:

[0088] The inner top surface of the cap 11 also has a positioning part 13; a second rotation adjustment device 278 is installed on the fourth mounting bracket 275, the rotation axis of the rotating end of the second rotation adjustment device 278 is perpendicular to the rotation axis of the rotating end of the first rotation adjustment device 274, the knob pneumatic gripper 276 is installed on the rotating end of the second rotation adjustment device 278, the movement direction of the piston of the cylinder of the knob pneumatic gripper 276 is the same as the orientation of the rotation axis of the rotating end of the second rotation adjustment device 278; the feeding mechanism 27 also includes a knob direction positioning device 279.

[0089] like Figure 10 , 11 As shown, the knob direction positioning device 279 includes a fifth mounting bracket 2791 mounted on the machine base. A first positioning seat 2792 is mounted on the fifth mounting bracket 2791. A second positioning seat 2793 is slidably disposed on the first positioning seat 2792. An elastic reset member 2794 is disposed between the first positioning seat 2792 and the second positioning seat 2793. When the second positioning seat 2793 slides downward, the elastic reset member 2794 will elastically deform to drive the second positioning seat 2793 to reset upward. The elastic reset member 2794 can be a compression spring.

[0090] The second positioning base 2793 has a first slot 2795 formed on it for inserting the lever guide of the knob.

[0091] Position sensor 2796 is installed on the fifth mounting bracket 2791.

[0092] The top side of the first positioning seat 2792 is formed with a spring positioning groove 2797, and the bottom side of the spring positioning groove 2797 is formed with a connecting groove 2798 that penetrates the bottom side of the first positioning seat 2792.

[0093] The knob direction positioning device 279 also includes a connecting rod 2799. The middle section of the connecting rod 2799 is located in the spring positioning groove 2797 and is fitted with a detection and reset spring 27910. The upper end of the connecting rod 2799 has a spring anti-disengagement part 27911. The lower end of the connecting rod 2799 passes downward through the connecting groove 2798 and is connected to an upward limiting member 27912, which is used to block the first positioning seat 2792 to limit the excessive upward movement of the connecting rod 2799.

[0094] The upper end of the connecting rod 2799 is connected to a top post 27913 that presses upward against the positioning part 13 of the knob, and the lower end of the connecting rod 2799 is connected to a trigger 27914 for cooperating with the position sensor 2796.

[0095] When the knob lever is inserted into the first slot 2795 and pressed down so that the knob positioning part 13 corresponds to the pressing top post 27913, the trigger 27914 is driven down to the sensing trigger area of ​​the position sensor 2796.

[0096] The position sensor 2796 can be a switch slot type optocoupler sensor.

[0097] The fourth mounting bracket 275 is equipped with a vacuum nozzle 27915, which faces downwards to pick up the end face of the knob, making it easy to remove the knob from the outlet 2771 of the knob feeding vibratory plate.

[0098] After the knob feeding vibratory plate 277 arranges the knob 1 to the outlet 2771, the vacuum nozzle 27915 is first controlled to suck the upper end face of the knob 1 tightly. Then, the upper and lower feeding assembly 273 drives the knob 1 to move out of the outlet 2771 of the knob feeding vibratory plate. Next, the front and rear feeding assembly 272 drives the knob 1 to move to the first slot 2795 above the second positioning seat 2793. The upper and lower feeding assembly 273 drives the knob rod 12 to be inserted into the first slot 2795, and controls the knob to be pressed down.

[0099] When the position sensor 2796 is triggered by the trigger 27914, it is identified that the current direction of the knob 1 is positive; when the position sensor 2796 is not triggered, it is identified that the current direction of the knob 1 is negative. At this time, the knob pneumatic gripper 276 clamps the knob 1, and the upper and lower feeding assembly 273 drives the knob 1 to disengage from the first slot 2795. Then, the second rotation adjustment device 278 rotates the knob pneumatic gripper 276, thereby adjusting the knob 1 to the positive direction.

[0100] After being adjusted to the positive direction, the feeding mechanism can insert knob 1 into the corresponding knob post according to the preset program.

[0101] Preferably, when the second rotation adjustment device 278 rotates the knob pneumatic gripper 276 to adjust the knob 1 to the positive direction, the upper and lower feeding assembly 273 also drives the knob rod to be inserted into the first slot and press down the knob to reposition and confirm.

[0102] Preferably, the knob insert 212 has a second slot 2110 corresponding to the positioning part, which constitutes multi-point positioning of the knob.

[0103] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A knob hot stamping device suitable for different side angles, characterized in that, It includes a first mounting base, a first mounting frame, a left and right moving mechanism, a printing mold, a tilt angle adjustment mechanism, and a front and back moving mechanism; The first mounting base is installed on the moving end of the left and right moving mechanism. The first mounting base is provided with a bearing seat that can be adjusted left and right. Multiple knob pins are rotatably provided on the bearing seat and spaced apart in the left and right direction. At least some of the knob pins have a different front and back tilt angle than other knob pins. The front end of the knob post has a positioning slot for inserting and positioning with the knob rod, and the rear end of the knob post has a rotation transmission part. The first mounting bracket has a horizontal receiving part that is in transmission contact with the rotation transmission part, which is used to convert the left and right displacement of the rotation transmission part into a rotation angle. The printing mold is located above the knob that has been inserted into the knob post. The printing mold is set to the left and right. The printing mold is driven by a vertical moving mechanism to press the hot stamping medium located between the printing mold and the knob onto the side of the knob. The tilt angle adjustment mechanism is installed on the first mounting base. The tilt angle adjustment mechanism has a tilt angle adjustment end, and a second mounting bracket is installed on the tilt angle adjustment end. The front and rear moving mechanism is set on the second mounting bracket. The tilt angle adjustment mechanism is used to adjust the tilt of the second mounting bracket, thereby adjusting the tilt of the front and rear moving mechanism and the end face pressing head installed on it. The moving end of the forward and backward moving mechanism is rotatably connected to an end face pressing head for pressing the knob onto the corresponding knob post.

2. The knob hot stamping device suitable for different side angles according to claim 1, characterized in that, It also includes the feeding mechanism; The feeding mechanism includes a third mounting frame, front and rear feeding components, and upper and lower feeding components. The front and rear feeding components and the upper and lower feeding components are combined to drive the third mounting frame to move back and forth and up and down. The third mounting bracket is equipped with a first rotation adjustment device. The rotation axis of the rotating end of the first rotation adjustment device is set to the left and right. The rotating end of the first rotation adjustment device is equipped with a fourth mounting bracket. The fourth mounting bracket is equipped with a knob pneumatic gripper. The knob pneumatic gripper has two gripping fingers that can approach each other to grip the knob.

3. The knob hot stamping device suitable for different side angles according to claim 2, characterized in that, The direction of movement of the piston of the cylinder of the knob-operated pneumatic gripper is perpendicular to the direction of rotation of the rotating end of the first rotation adjustment device, and the direction in which the two gripping fingers approach each other is perpendicular to the direction of movement of the piston of the cylinder of the knob-operated pneumatic gripper.

4. A knob hot stamping device suitable for different side angles according to claim 2 or 3, characterized in that, A clamping base is connected to the clamping finger, and a clamping plate is rotatably connected to the clamping base. The clamping plate rotates in the direction of moving closer to / away from the other clamping finger. The clamping base is also provided with a reset element for resetting the clamping plate to rotate closer to the other clamping finger.

5. A knob hot stamping device suitable for different side angles according to claim 4, characterized in that, The bottom of the clamp is rotatably connected to the clamp seat, which has a stop to prevent the top of the clamp from rotating too much.

6. A knob hot stamping device suitable for different side angles according to claim 2, 3, or 5, characterized in that, The inner top surface of the knob cap also has a positioning part; The fourth mounting bracket is equipped with a second rotation adjustment device. The rotation axis of the rotation end of the second rotation adjustment device is perpendicular to the rotation axis of the rotation end of the first rotation adjustment device. The knob pneumatic gripper is installed on the rotation end of the second rotation adjustment device. The piston of the cylinder of the knob pneumatic gripper moves in the same direction as the rotation axis of the rotation end of the second rotation adjustment device. The feeding mechanism also includes a knob orientation positioning device; The knob direction positioning device includes a fifth mounting bracket mounted on a machine base, a first positioning seat mounted on the fifth mounting bracket, and a second positioning seat slidably mounted on the first positioning seat. An elastic reset member is provided between the first and second positioning seats, which is used to elastically deform when the second positioning seat slides downward, thereby driving the second positioning seat to return to its original position upward. A first slot is formed on the second positioning seat for guiding the knob rod to be inserted. A position sensor is mounted on the fifth mounting bracket. A spring positioning groove is formed on the top side of the first positioning seat, and a connecting groove penetrating the bottom side of the first positioning seat is formed on the bottom side of the spring positioning groove. The knob direction positioning device also includes a connecting rod. The middle section of the connecting rod is located in the spring positioning groove and is fitted with a detection and reset spring. The upper end of the connecting rod has a spring anti-disengagement part. The lower end of the connecting rod passes downward through the connecting groove and is connected to an upward limiting member, which is used to block the first positioning seat to limit the excessive upward movement of the connecting rod. The upper end of the connecting rod is connected to a top post that presses against the positioning part of the knob. The lower end of the connecting rod is connected to a trigger for cooperating with the position sensor. When the knob is inserted into the first slot and pressed down, causing the positioning part of the knob to press down on the top post, the trigger is driven downward to the sensing trigger area of ​​the position sensor.

7. A knob hot stamping device suitable for different side angles according to claim 6, characterized in that, The fourth mounting bracket is equipped with a vacuum nozzle for sucking up the end face of the knob.

8. A knob hot stamping device suitable for different side angles according to claim 7, characterized in that, The feeding mechanism also includes a knob-feeding vibratory feeder, the outlet of which has an arrangement track that cooperates with the lever of the knob so that the knobs are arranged sequentially.

9. A knob hot stamping device suitable for different side angles according to claim 1, 2, 3, 5, 7, or 8, characterized in that, The tilt angle adjustment mechanism has a second mounting base disposed on the first mounting base, and a tilt angle adjustment pad is replaceably disposed on the second mounting base, the top side of the tilt angle adjustment pad being the angle adjustment side; The tilt angle adjustment end of the tilt angle adjustment mechanism is a connecting block located above the angle adjustment side. The connecting block is detachably connected to the second mounting base, and the tilt angle of the connecting block relative to the second mounting base is adjusted by the angle adjustment side of the replaceable tilt angle adjustment pad.

10. A knob hot stamping device suitable for different side angles according to claim 9, characterized in that, The second mounting base has a connecting screw hole formed on it. The tilt angle adjustment pad has a first mounting hole corresponding to the connecting screw hole running through it vertically. The connecting block has a second mounting hole corresponding to the first mounting hole running through it vertically. The second mounting hole extends forward and backward. The end of the second mounting hole away from the tilt angle adjustment pad is expanded outward to form a third mounting hole. An arc-shaped connecting surface that is recessed towards the second mounting hole is formed at the connection between the third mounting hole and the second mounting hole. A connecting rod is provided on the connecting screw hole. One end of the connecting rod has a threaded part that passes through the third mounting hole, the second mounting hole, and the first mounting hole and mates with the connecting screw hole. The other end of the connecting rod has a limiting part for limiting the connecting rod to completely pass through the second mounting hole. The limiting part has an arc-shaped abutting surface that mates with the arc-shaped connecting surface on the side facing the threaded part. The front-to-back width of the third mounting hole is greater than the front-to-back width of the limiting part.

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