Star wheel core pressing tool

Abstract

The utility model discloses a kind of star wheel core pressing tool, it is related to stripping tool technical field, including: bottom plate, sliding seat, fixed link, adjusting seat, lower pressing mechanism. Sliding seat is slidably arranged on bottom plate, and the upper end of sliding seat is detachably provided with positioning part, and the upper end of positioning part is provided with positioning groove for embedding and positioning the lower end of star wheel;Fixed link is vertically arranged on bottom plate;Adjusting seat is installed on fixed link and can be adjusted in position up and down;Lower pressing mechanism is connected to adjusting seat;Among them, sliding seat has ejection position and feeding position, when sliding seat is located in ejection position, lower pressing mechanism can push the core block on the star wheel in positioning groove to move downward, when sliding seat is located in feeding position, positioning groove is avoided in vertical direction to lower pressing mechanism.The utility model can be adapted to different models star wheel.

Description

Technical Field

[0001] This utility model relates to the field of demolding tooling technology, and in particular to a star wheel pressing tooling. Background Technology

[0002] In rubber star wheels, after vulcanization, the central core wheel adheres strongly to the star wheel after demolding, making it difficult to separate the core mold from the product. Current technology typically uses fixed positioning structures for core pressing fixtures. Different star wheel models have dimensional differences, requiring the disassembly and replacement of the entire positioning mold when switching product models, significantly increasing production costs and changeover time. Furthermore, operators need to manually align the pressing mechanism, resulting in high labor intensity. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a star wheel pressing core tooling that can be adapted to different types of star wheels.

[0004] A star wheel core pressing fixture according to a first aspect of this utility model includes: a base plate, a sliding seat, a fixed rod, an adjusting seat, and a pressing mechanism. The sliding seat is slidably disposed on the base plate, and a positioning part is detachably provided at the upper end of the sliding seat. The positioning part has a positioning groove at its upper end for the lower end of the star wheel to be embedded and positioned. The fixed rod is vertically disposed on the base plate. The adjusting seat is mounted on the fixed rod and is adjustable in position up and down. The pressing mechanism is connected to the adjusting seat. The sliding seat has a demolding position and a loading position. When the sliding seat is in the demolding position, the pressing mechanism can push the core block on the star wheel located in the positioning groove downwards. When the sliding seat is in the loading position, the positioning groove avoids the pressing mechanism in the vertical direction.

[0005] According to an embodiment of the present invention, a star wheel pressing core tooling has at least the following beneficial effects: it can process star wheels of different shapes and sizes and replace the corresponding positioning parts, and the pressing mechanism can adjust the pressing stroke according to star wheels of different heights. Through the replaceable positioning parts, the adjustable pressing mechanism and the movable sliding seat, the technical effect of adapting to star wheels of multiple sizes is achieved, and the versatility and flexibility of the tooling are improved.

[0006] According to some embodiments of the present invention, the adjusting seat is provided with an adjusting hole, the fixing rod passes through the adjusting hole, and the adjusting seat is horizontally provided with a set bolt, which can abut against the fixing rod to fix the fixing rod.

[0007] According to some embodiments of this utility model, the pressing mechanism is detachably connected to the adjusting seat, and the pressing mechanism is a push-pull type quick clamp.

[0008] According to some embodiments of the present invention, the pressing mechanism includes a vertical rod and a horizontal rod, the horizontal rod is connected to the vertical rod, the adjusting seat has a vertically opening operating hole for the vertical rod to pass through, and an elastic element is sleeved on the vertical rod, one end of the elastic element abuts against the adjusting seat and the other end abuts against the horizontal rod.

[0009] According to some embodiments of the present invention, a limiting part is provided on the base plate, and the limiting part is used to limit the travel of the sliding seat.

[0010] According to some embodiments of the present invention, a driving mechanism is provided on the base plate, the driving mechanism is connected to the sliding seat in a transmission manner, and the driving mechanism is used to drive the sliding seat to switch between the demolding position and the loading position.

[0011] According to some embodiments of the present invention, a locking cylinder is provided at the upper end of the sliding seat, the locking cylinder is for the lower end of the positioning part to be embedded in, and a locking bolt is provided through the side wall of the locking cylinder, the locking bolt abutting against the side wall of the positioning part to fix the positioning part.

[0012] According to some embodiments of this utility model, the positioning part is provided with a first dropping hole vertically, the sliding seat is provided with a second dropping hole, and the base plate is provided with a third dropping hole. When the sliding seat is in the mold exit position, the first dropping hole, the second dropping hole and the third dropping hole are aligned in the vertical direction and can allow the core block to pass through.

[0013] According to some embodiments of the present invention, a collection box is provided below the base plate, and the collection box is used to store the fallen core blocks.

[0014] According to some embodiments of the present invention, a material inlet is provided on one side of the collection box, and a guide plate inclined toward the material inlet is provided inside the collection box.

[0015] Additional aspects and advantages of this 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

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the structure of the sliding seat in the first embodiment of the present invention when it is in the demolding position;

[0018] Figure 2 This is a schematic diagram of the sliding seat in the feeding position according to the first embodiment of the present invention;

[0019] Figure 3This is a schematic diagram of the installation of the positioning part according to the first embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the base plate according to the first embodiment of the present utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the collection box according to the first embodiment of the present utility model;

[0022] Figure 6 This is an exploded view of the pressing mechanism of the first embodiment of the present invention;

[0023] Figure 7 This is an exploded view of the star wheel and core block according to the first embodiment of the present invention.

[0024] Icon labels:

[0025] Base plate 100, limiting part 110, drive mechanism 120, third discharge hole 130;

[0026] Sliding seat 200, positioning part 210, positioning groove 211, first discharge hole 212, locking cylinder 220, locking bolt 221, second discharge hole 230;

[0027] Star Wheel 300;

[0028] Fixed rod 400;

[0029] Adjusting seat 500, adjusting hole 510, set bolt 511, operating hole 520;

[0030] The pressing mechanism 600, the vertical rod 610, the elastic element 611, and the horizontal rod 620 are included.

[0031] Chip 700;

[0032] Collection box 800, material dispensing port 810, guide plate 820. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0036] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0037] Reference Figures 1 to 7As shown, a star wheel pressing core tooling according to the first embodiment of this utility model includes: a base plate 100, a sliding seat 200, a fixed rod 400, an adjusting seat 500, and a pressing mechanism 600. The base plate 100 is an alloy steel plate, which provides a sturdy, stable, and non-deformable support platform. The base plate 100 is horizontally set, and two parallel linear guide rails are bolted to the upper end of the base plate 100. The sliding seat 200 is slidably set on the base plate 100 through the linear guide rails. The sliding seat 200 can move horizontally along the linear guide rails. A positioning part 210 is detachably provided at the upper end of the sliding seat 200. The upper end of the positioning part 210 is provided with a positioning groove 211 for the lower end of the star wheel 300 to be embedded and positioned. The shape of the positioning groove 211 matches the shape of the lower end of the star wheel 300 so that the star wheel 300 will not shake after being placed on the positioning part 210. Processing star wheels 300 of different shapes and sizes only requires replacing the corresponding positioning part 210 to achieve fast and accurate positioning, without replacing the entire tooling, thus improving compatibility with different models of star wheels 300. The fixing rod 400 is vertically mounted on the base plate 100, and is connected to the base plate 100 by bolts or welding. The adjusting seat 500 is vertically adjustable and mounted on the fixing rod 400; the pressing mechanism 600 is connected to the adjusting seat 500; the pressing mechanism 600 is mounted via the adjustable seat 500, allowing it to be adjusted according to star wheels 300 of different heights, ensuring the accuracy of the stroke and force of the driving core block 700, and adapting to star wheels 300 of different heights. The sliding seat 200 has a demolding position and a loading position. When the sliding seat 200 is in the demolding position, the pressing mechanism 600 can push the core block 700 on the star wheel 300 located in the positioning groove 211 downward. When the sliding seat 200 is in the loading position, the positioning groove 211 avoids the pressing mechanism 600 in the vertical direction. The function of the sliding seat 200 is to avoid the pressing mechanism 600 during loading. When the star wheel 300 is large in size and weight, it is easy to place it on the positioning part 210. It is foreseeable that for the small, light, and easy-to-place star wheel 300, the sliding seat 200 can be fixedly locked in the demolding position, eliminating the step of moving the sliding seat 200 back and forth, simplifying the operation process, and improving production efficiency. Through the replaceable positioning part 210, the height-adjustable pressing mechanism 600, and the movable sliding seat 200, the technical effect of adapting to star wheels 300 of multiple sizes is achieved, improving the tooling versatility and flexibility.

[0038] Reference Figure 6As shown, in a star wheel pressure core tooling according to the first embodiment of this utility model, it can be understood that the adjusting seat 500 has a vertical adjusting hole 510, the fixing rod 400 is a smooth cylinder, the fixing rod 400 passes through the adjusting hole 510, and the adjusting seat 500 is horizontally fitted with a set bolt 511, which is threadedly connected to the adjusting seat 500 and extends into the adjusting hole 510. The set bolt 511 is an adjustable set screw, the specific structure of which is prior art and will not be described in detail. The set bolt 511 can abut against the fixing rod 400 to fix the fixing rod 400. When the set bolt 511 is tightened, the bolt end directly abuts against the side of the fixing rod 400. By applying a preload through the set bolt 511, a large static friction force is generated between the inner wall of the adjusting seat 500 and the fixing rod 400. This ensures a stable fixation of the adjusting seat 500 and the fixing rod 400. Loosening the set screw 511 allows the adjusting seat 500 to slide up and down along the smooth fixed rod 400, achieving stepless height adjustment. The operation is quick and effortless. Only a vertical adjusting hole 510 and a horizontal threaded hole need to be machined on the adjusting seat 500, making the machining requirements for the parts relatively low.

[0039] In a star wheel pressing tooling according to the second embodiment of this utility model, the pressing mechanism 600 is detachably connected to the adjusting seat 500. The pressing mechanism 600 is a push-pull quick clamp. Push-pull quick clamps are commonly used components with low procurement costs. Utilizing the lever principle, a simple push-pull action from the operator is sufficient to push the core block 700 downwards, and the operator only needs to apply a small force to generate a large clamping force, significantly reducing the operator's labor intensity. The push-pull quick clamp itself has a relatively compact structure, occupies little space, and is installed via bolt connections, making maintenance and disassembly convenient. Since push-pull quick clamps are existing technology, the second embodiment is not shown in the accompanying drawings.

[0040] Reference Figure 2 and Figure 6As shown, in a star wheel pressing tooling according to the first embodiment of this utility model, the pressing mechanism 600 does not use a push-pull quick clamp, but instead uses an L-shaped or T-shaped rod. The pressing mechanism 600 includes a vertical rod 610 and a horizontal rod 620. The horizontal rod 620 is connected to the vertical rod 610. The adjusting seat 500 has a vertically opening operating hole 520 for the vertical rod 610 to pass through. An elastic element 611 is sleeved on the vertical rod 610. One end of the elastic element 611 abuts against the adjusting seat 500, and the other end abuts against the horizontal rod 620. The horizontal rod 620 serves as the part held by the operator. During operation, the operator holds the horizontal rod 620 and presses down. The vertical rod 610 is guided by the operating hole 520 and moves vertically downward to push the core block 700 to separate from the star wheel 300. The elastic element 611 is compressed during the downward movement of the vertical rod 610. When the operator releases the pressure, the elastic element 611 pushes the horizontal rod 620 upward to reset, allowing the vertical rod 610 to move to a height that does not affect the removal of the star wheel 300. It is foreseeable that the thrust generated by the operator using the horizontal rod 620 and vertical rod 610 is relatively small, but this structure allows the vertical rod 610 to operate with a large displacement. For the small, lightweight, and easily accessible star wheel 300, the sliding seat 200 can be fixedly locked in the demolding position. In this case, the structure using the horizontal rod 620 and vertical rod 610 provides a larger vertical space for easy removal of the star wheel 300. This structure is not suitable when the star wheel 300 is large and the core block 700 requires a large force to push.

[0041] Reference Figure 1 and Figure 2 As shown, in a star wheel pressing core tooling according to the first embodiment of this utility model, it can be understood that a limiting part 110 is provided on the base plate 100, which is used to limit the travel of the sliding seat 200. The limiting part 110 is an L-shaped plate bolted to the upper end of the base plate 100. The limiting part 110 includes a horizontal plate and a vertical plate, which are integrally bent. The horizontal plate is bolted to the horizontal base plate 100, and the vertical plate is located on the travel path of the sliding seat 200. The vertical plate limits the travel of the sliding seat 200 by abutting against it. There are two limiting parts 110, which respectively limit the left and right travel of the sliding seat 200.

[0042] Reference Figure 1 and Figure 2As shown, in a star wheel pressing core tooling according to the first embodiment of this utility model, it can be understood that a drive mechanism 120 is provided on the base plate 100. The drive mechanism 120 is connected to the sliding seat 200 for transmission. The drive mechanism 120 is used to drive the sliding seat 200 to switch between the demolding position and the loading position. The drive mechanism 120 adopts a common combination of stepper motor and synchronous belt. The synchronous belt is bolted to the side of the sliding seat 200. The stepper motor drives the synchronous belt to move through the synchronous pulley, thereby driving the sliding seat 200 to move. The transmission form of stepper motor and synchronous belt has the advantages of long stroke, fast movement speed and small size. The movement speed of the sliding seat 200 is usually selected as 0.3m / s. The drive mechanism 120 replaces the manual pushing and pulling operation of the sliding seat 200 for positioning, reducing labor intensity. The switching process is automatically completed by the drive mechanism 120, which is faster and more accurate in position. It shortens the processing time of a single piece and improves the overall production efficiency. The combination of stepper motor and synchronous belt can also accurately position, ensuring the accuracy and quality stability of the pressing core action. It is foreseeable that the drive mechanism 120 can also be a cylinder, electric push rod or other structure.

[0043] Reference Figure 1 refer to Figure 3 As shown, in a star wheel pressure core tooling according to the first embodiment of this utility model, it can be understood that a locking cylinder 220 is provided at the upper end of the sliding seat 200. The locking cylinder 220 is directly welded to the upper end of the sliding seat 200, eliminating the need for additional connecting plates, resulting in a simple and compact structure. The locking cylinder 220 is for the lower end of the positioning part 210 to be embedded. The lower end of the positioning part 210 is provided with an embedding part, the outer diameter of which matches the inner diameter of the locking cylinder 220, so that the embedding part can be inserted into the locking cylinder 220 without shaking. A locking bolt 221 is provided through the side wall of the locking cylinder 220. The locking bolt 221 abuts against the side wall of the positioning part 210 to fix the positioning part 210. The locking bolt 221 is located on the side wall, so even if the locking bolt 221 is accidentally loosened, the positioning part 210 will still be stuck in the cylinder and will not easily fall off, avoiding production accidents. Only a single locking bolt 221 needs to be tightened to fix the positioning part 210, shortening the replacement time of the positioning part 210 and improving replacement efficiency. All positioning parts 210 only need to be designed with the same size insert end to fit the same locking cylinder 220.

[0044] Reference Figure 3As shown, in a star wheel core pressing fixture according to the first embodiment of this utility model, it can be understood that the positioning part 210 has a first discharge hole 212 vertically formed, the sliding seat 200 has a second discharge hole 230, and the base plate 100 has a third discharge hole 130. When the sliding seat 200 is in the demolding position, the first discharge hole 212, the second discharge hole 230, and the third discharge hole 130 are aligned vertically and can allow the core block 700 to pass through. The pressed-out core block 700, under the action of gravity, passes through the first discharge hole 212, the second discharge hole 230, and the third discharge hole 130 in sequence, solving the problem of material discharge after pressing the core block 700. The dimensions of the first discharge hole 212, the second discharge hole 230, and the third discharge hole 130 are all larger than the dimensions of the core block 700 to avoid damage to the equipment due to the core block 700 getting stuck.

[0045] Reference Figure 4 and Figure 5 As shown, in a star wheel core pressing fixture according to the first embodiment of this utility model, it can be understood that a collection box 800 is provided below the base plate 100, and the collection box 800 is used to store the fallen core blocks 700. After the core blocks 700 fall into the collection box 800 through the material discharge channel formed by the first discharge hole 212, the second discharge hole 230 and the third discharge hole 130, the core blocks 700 fall into the collection box 800. The process of collecting the core blocks 700 does not require manual material removal and transfer intervention. A weighing sensor can be installed inside the collection box 800 to calculate the real-time output based on the weight of the core blocks 700. The inner wall of the collection box 800 is lined with a wear-resistant plate made of plastic or rubber to reduce the noise of the core blocks 700 falling and to improve the service life of the box.

[0046] Reference Figure 4 and Figure 5 As shown, in a star wheel core pressing fixture according to the first embodiment of this utility model, it can be understood that a material inlet 810 is provided on one side of the collection box 800, and a guide plate 820 inclined towards the material inlet 810 is provided inside the collection box 800. The inclination angle of the guide plate 820 is greater than 35 degrees, so that the core block 700 always automatically slides towards the material inlet 810 in the box, making it convenient for the operator to take out the core block 700. A transparent polycarbonate door is provided at the material inlet 810 to reduce the entry of external debris into the collection box 800. Depending on the material of different core blocks 700, the material of the guide plate 820 can be Teflon-coated steel plate, stainless steel, and rubber lining plate, etc.

[0047] Operating Procedures: Before operation, replace the positioning part 210 with the matching one according to the current star wheel 300 model. Embed the positioning part 210 into the locking cylinder 220 at the upper end of the sliding seat 200 and tighten the locking bolt 221 to fix it. If the star wheel 300 is large or heavy, the drive mechanism 120 will move the sliding seat 200 to the loading position of the base plate 100, so that the positioning groove 211 avoids being directly below the pressing mechanism 600, and the star wheel 300 is placed in the positioning groove 211. If the star wheel 300 is small, it can be loaded directly at the demolding position. Then push the sliding seat 200 to the demolding position, ensuring that the core block 700 of the star wheel 300 is aligned with the pressing mechanism 600. The operator adjusts the height of the adjusting seat 500 on the fixed rod 400, so that the pressing head of the pressing mechanism 600 and the core block 700 of the star wheel 300 are left with an appropriate distance, and then tightens the locking bolt 511. Operate the pressing mechanism 600 to smoothly press the core block 700 into the star wheel 300. At this time, the pressed-out core block 700 falls into the collection box 800 below through the first drop hole 212, the second drop hole 230, and the third drop hole 130. After the large star wheel 300 completes the core pressing, it moves back to the sliding seat 200 to the loading position for easy part removal. The small star wheel 300 can be directly removed from the mold exit position. Periodically open the material removal port 810 on the side of the collection box 800 to remove the core block 700.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A star wheel core pressing tool, characterized in that, include: Base plate (100); A sliding seat (200) is slidably disposed on the base plate (100). The upper end of the sliding seat (200) is detachably provided with a positioning part (210). The upper end of the positioning part (210) is provided with a positioning groove (211) for the lower end of the star wheel (300) to be embedded and positioned. A fixing rod (400) is vertically installed on the base plate (100). An adjustable seat (500) is mounted on the fixed rod (400) and its position can be adjusted up and down. A pressing mechanism (600) is connected to the adjusting seat (500); The sliding seat (200) has a demolding position and a loading position. When the sliding seat (200) is in the demolding position, the pressing mechanism (600) can push the core block (700) on the star wheel (300) located in the positioning groove (211) to move downward. When the sliding seat (200) is in the loading position, the positioning groove (211) avoids the pressing mechanism (600) in the vertical direction.

2. The star wheel core pressing tooling according to claim 1, characterized in that: The adjusting seat (500) is provided with an adjusting hole (510), the fixing rod (400) passes through the adjusting hole (510), and the adjusting seat (500) is horizontally provided with a set bolt (511), which can abut against the fixing rod (400) to fix the fixing rod (400).

3. The star wheel core pressing fixture according to claim 2, characterized in that: The pressing mechanism (600) is detachably connected to the adjusting seat (500), and the pressing mechanism (600) is a push-pull type quick clamp.

4. The star wheel pressing core tooling according to claim 2, characterized in that: The pressing mechanism (600) includes a vertical rod (610) and a horizontal rod (620). The horizontal rod (620) is connected to the vertical rod (610). The adjusting seat (500) has a vertically opening operating hole (520) for the vertical rod (610) to pass through. An elastic element (611) is sleeved on the vertical rod (610). One end of the elastic element (611) abuts against the adjusting seat (500), and the other end abuts against the horizontal rod (620).

5. The star wheel pressing core tooling according to claim 1, characterized in that: A limiting part (110) is provided on the base plate (100), and the limiting part (110) is used to limit the travel of the sliding seat (200).

6. The star wheel core pressing tooling according to claim 1, characterized in that: A drive mechanism (120) is provided on the base plate (100). The drive mechanism (120) is connected to the sliding seat (200) for transmission. The drive mechanism (120) is used to drive the sliding seat (200) to switch between the demolding position and the loading position.

7. The star wheel core pressing tooling according to claim 6, characterized in that: The upper end of the sliding seat (200) is provided with a locking cylinder (220), the lower end of the positioning part (210) is inserted into the locking cylinder (220), and a locking bolt (221) is provided through the side wall of the locking cylinder (220). The locking bolt (221) abuts against the side wall of the positioning part (210) to fix the positioning part (210).

8. The star wheel core pressing tooling according to claim 7, characterized in that: The positioning part (210) is vertically provided with a first discharge hole (212), the sliding seat (200) is provided with a second discharge hole (230), and the base plate (100) is provided with a third discharge hole (130). When the sliding seat (200) is in the mold exit position, the first discharge hole (212), the second discharge hole (230) and the third discharge hole (130) are aligned in the vertical direction and can allow the core block (700) to pass through.

9. The star wheel pressing core tooling according to claim 1, characterized in that: A collection box (800) is provided below the base plate (100) for storing the fallen core block (700).

10. The star wheel core pressing tooling according to claim 9, characterized in that: The collection box (800) has a material inlet (810) on one side, and a guide plate (820) inclined toward the material inlet (810) is provided inside the collection box (800).

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