A rubber product production deburring device

Abstract

The utility model relates to rubber product deburring technical field, concretely relates to a deburring device for rubber product production. Including bottom plate. The utility model discloses, after the rubber sleeve of deburring is waited to be set on the cylindrical lateral wall of initial state, all inside bracing board is driven to move strictly synchronously to the direction of far away from the axis of carousel through the rotation screw rod, and the rubber sleeve can be realized even and steady support from inside with the help of enough number of inside bracing board, accurate synchronous movement control and the circular arc surface of accurate processing, at the same time, the self -locking function of screw rod has guaranteed the stable reliable of support state, has effectively maintained the high degree of circular of rubber sleeve circumferential lateral wall in the process of cutting off the burr, therefore, in the relative movement between the rotating rubber sleeve and the moving cutter, the burr on the rubber sleeve circumferential outer wall can be cut off efficiently and completely, and the quality of device cutting burr is improved.

Description

Technical Field

[0001] This utility model relates to the field of deburring technology for rubber products, specifically, to a deburring device for rubber product manufacturing. Background Technology

[0002] Deburring rubber products is an essential and crucial step after molding. Its core purpose is to precisely remove excess rubber material that overflows from the mold parting surface, venting holes, ejector pin holes, and other areas to ensure that the product has smooth edges, accurate dimensions, and an attractive appearance, thus meeting the final usage requirements.

[0003] As an extremely common and widely used industrial component, the core function of cylindrical rubber sleeves lies in making full use of the inherent properties of rubber materials and their tubular structure to provide effective protection, sealing, insulation, shock absorption, guidance, or connection for various application scenarios. These products are usually vulcanized by assembling two halves (or more pieces) of a mold. During the high-pressure vulcanization process, the rubber material will inevitably be squeezed into the gap (parting line) at the mold joint, resulting in a continuous and unevenly thick burr on the equatorial plane (i.e., the plane with the largest diameter perpendicular to the axis) of the entire circumference of the molded rubber sleeve.

[0004] The utility model with authorization announcement number CN219235895U provides a deburring device for rubber product manufacturing. By fitting a rubber ring onto the outer circumference of the right end of the limiting rotation mechanism in one go, the limiting rotation mechanism supports the rubber ring through a spring rod and two limiting plates, thus completing the internal support and fixation of the rubber ring.

[0005] However, in the aforementioned patent, before the rubber ring is fitted onto the two limiting plates, the operator must continuously press manually to bring the two limiting plates closer together, forcing the spring rod to contract. Only in this state can the rubber ring be fitted relatively easily. Once the operator releases the limiting plates, the spring rod will rebound, causing the limiting plates to reset and generate severe friction with the inner wall of the rubber ring, creating huge installation resistance. This greatly affects the smoothness of the fitting, making the operation time-consuming and laborious. At the same time, relying solely on two relatively far-spaced limiting plates to internally support and fix the rubber ring, since rubber itself is a soft material, the rubber ring is prone to non-uniform deformation when there are only two rigid support points with excessive spacing. Its equatorial outer wall, which should be an ideal circle, cannot maintain a uniform and stable circular contour. This deformation directly leads to the inability of the moving cutter and the rotating rubber ring to achieve precise and stable cooperation in subsequent processes. The cutter cannot maintain the best contact angle and pressure with the root of the burr on the entire circumference. The final result is that the burrs around the circumferential sidewall of the rubber ring cannot be completely and cleanly scraped off, reducing the precision of deburring and the quality of the final product. Utility Model Content

[0006] The purpose of this utility model is to provide a deburring device for rubber product manufacturing, so as to solve the problems mentioned in the background art above:

[0007] Existing technology relies solely on two widely spaced limiting plates to internally support and fix the rubber ring, which makes the rubber ring prone to uneven deformation, reducing the precision of deburring and the quality of the final product.

[0008] To address the above problems, the present invention aims to provide a deburring device for rubber product manufacturing, comprising a base plate, a servo motor fixedly mounted on the upper side wall of the base plate, a turntable coaxially fixedly connected to the output shaft of the servo motor, and a plurality of inner support plates slidably arranged in a circular array on the side of the turntable away from the servo motor, with a driving mechanism arranged between the inner support plates. The driving mechanism is used to drive all the inner support plates to move synchronously toward or away from the axis of the turntable. The side of the inner support plate away from the driving mechanism is set with an arc-shaped surface. When the driving mechanism drives the inner support plate to the position closest to the axis of the turntable, the arc-shaped surfaces of the inner support plates are joined together to form a cylindrical side wall. A cutting mechanism for removing the burrs from the rubber sleeve is provided on the upper side of the inner support plate.

[0009] As a further improvement to this technical solution, a slider is fixedly connected to the side of the inner support plate near the servo motor, and a movable groove is opened on the turntable corresponding to each slider, and the slider is slidably disposed inside the corresponding movable groove.

[0010] As a further improvement to this technical solution, the drive mechanism includes an internally threaded tube coaxially fixedly mounted on the side of the turntable away from the servo motor, and the internally threaded tube is connected to a threaded rod.

[0011] As a further improvement to this technical solution, one end of the threaded rod extends to the outside of the internally threaded tube and is coaxially fixedly connected to a bolt head. A rotating ring is coaxially rotatably connected to the threaded rod, and the rotating ring is located outside the internally threaded tube.

[0012] As a further improvement to this technical solution, the driving mechanism also includes a sleeve that is slidably fitted on the internally threaded tube, one end of which is fixedly connected to the rotating ring.

[0013] As a further improvement to this technical solution, the inner support plate is hinged to both ends near the axis of the sleeve, and the other end of the connecting rod is hinged to the outer circumference of the sleeve. The two connecting rods are parallel to each other and inclined. Several connecting rods located at one end of several inner support plates are distributed in a ring array around the sleeve.

[0014] As a further improvement to this technical solution, the side of the connecting rod away from the sleeve axis is arranged towards the turntable, and the side of the connecting rod near the sleeve axis is arranged away from the turntable.

[0015] As a further improvement to this technical solution, the cutting mechanism includes a mounting bracket fixedly installed on the side wall of the base plate. A lead screw slide is fixedly installed on the top side inside the mounting bracket. An electric telescopic rod is fixedly installed on the lower side wall of the lead screw slide. A cutting blade is fixedly installed on the lower end of the piston rod of the electric telescopic rod through a blade holder.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This deburring device for rubber product manufacturing, after the rubber sleeve to be deburred is placed on the cylindrical sidewall in its initial state, drives all the inner support plates to move strictly and synchronously away from the axis of the turntable by rotating the threaded rod. With a sufficient number of inner support plates, precise synchronous motion control, and a precisely machined arc-shaped surface, the device can achieve uniform and stable support from inside the rubber sleeve. At the same time, the self-locking function of the threaded rod ensures the stability and reliability of the support state, effectively maintaining the high roundness of the circumferential sidewall of the rubber sleeve during the deburring process. Therefore, in the relative motion generated between the rotating rubber sleeve and the moving cutter, the burrs on the outer circumference of the rubber sleeve can be efficiently and completely removed, improving the quality of the device's deburring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0020] Figure 3 For the present utility model Figure 2 A sectional view;

[0021] Figure 4 This is a second schematic diagram of a partial structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal support plate of this utility model;

[0023] Figure 6 This is an exploded view of part of the structure of this utility model.

[0024] The meanings of the labels in the diagram are as follows:

[0025] 1. Base plate; 2. Servo motor;

[0026] 3. Turntable; 31. Movable slot;

[0027] 4. Cutting mechanism; 41. Mounting bracket; 42. Lead screw slide; 43. Electric telescopic rod; 44. Cutting blade;

[0028] 5. Inner support plate; 51. Sliding block;

[0029] 6. Drive mechanism; 61. Internally threaded tube; 62. Threaded rod; 63. Rotating ring; 64. Sleeve; 65. Connecting rod. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example 1

[0032] Please see Figure 1 , Figure 2 and Figure 5 As shown, the purpose of this embodiment is to provide a deburring device for rubber product manufacturing, including a base plate 1. A servo motor 2 is fixedly installed on the upper side wall of the base plate 1. A turntable 3 is coaxially fixedly connected to the output shaft of the servo motor 2. Several inner support plates 5 are slidably arranged in a ring array on the side of the turntable 3 away from the servo motor 2. A slider 51 is fixedly connected to the side of the inner support plate 5 near the servo motor 2. A movable groove 31 is opened on the turntable 3 at the position corresponding to each slider 51. The slider 51 is slidably disposed in the corresponding movable groove 31. The mutual cooperation between the slider 51 and the movable groove 31 constrains the inner support plate 5 to move only in the direction close to or away from the axis of the turntable 3. A driving mechanism 6 is arranged between the several inner support plates 5. The driving mechanism 6 is used to drive all the inner support plates 5 to move synchronously in the direction close to or away from the axis of the turntable 3. The side of the inner support plate 5 away from the driving mechanism 6 is set as an arc-shaped surface. A cutting mechanism 4 for cutting off the burrs of the rubber sleeve is arranged on the upper side of the inner support plate 5.

[0033] The structure of the cutting mechanism 4 is described in detail below. The cutting mechanism 4 includes a mounting frame 41 fixedly installed on the upper side wall of the base plate 1. A lead screw slide 42 is fixedly installed on the top side inside the mounting frame 41. An electric telescopic rod 43 is fixedly installed on the lower side wall of the lead screw slide 42. A cutter 44 is fixedly installed on the lower end of the piston rod of the electric telescopic rod 43 through a cutter holder. The cutter 44 is located directly above the inner support plate 5.

[0034] In the initial state, the piston rod of the electric telescopic rod 43 is in the retracted state, ensuring that the distance between the lower end of the cutter 44 and the uppermost inner support plate 5 is greater than the thickness of the rubber sleeve to be processed, thus avoiding interference in the initial position. The drive mechanism 6 drives the inner support plate 5 to move to the position closest to the axis of the turntable 3. At this time, several inner support plates 5 are tightly fitted together, and the arc-shaped surfaces of several inner support plates 5 are spliced ​​together to form a cylindrical sidewall. The outer diameter of the cylindrical sidewall is smaller than the inner diameter of the rubber sleeve to be deburred.

[0035] The operation process is as follows: The operator first places the rubber sleeve to be deburred onto the cylindrical sidewall in its initial state. Then, the drive mechanism 6 drives all the inner support plates 5 to move precisely and synchronously away from the axis of the turntable 3. The arc-shaped surface of the inner support plates 5 evenly and stably supports the rubber sleeve from the inside. It is worth emphasizing that although gaps will naturally be generated when the inner support plates 5 expand and separate from each other, the rubber sleeve can be effectively supported by a sufficient number of inner support plates 5, strict synchronous motion control, precise machining of the arc-shaped surface, and reliable locking mechanism. This ensures that the circumferential sidewall of the rubber sleeve maintains a very high degree of roundness during dynamic cutting, and its roundness accuracy fully meets the process requirements for subsequent deburring.

[0036] Next, the servo motor 2 is started, and its output shaft drives the turntable 3 and the tightened rubber sleeve to rotate together. Then, the piston rod of the electric telescopic rod 43 is extended to drive the cutter 44 to move down until its blade precisely contacts and lightly presses on the outer circumference of the rotating rubber sleeve. Finally, the lead screw slide 42 is started, and its slide drives the electric telescopic rod 43 and the cutter 44 to move horizontally along the axis of the turntable 3 (i.e., the length direction of the rubber sleeve). The cutter 44 moves smoothly from one end of the rubber sleeve to the other end. By utilizing the relative motion between the rotating rubber sleeve and the moving cutter 44, the burrs on the outer circumference of the rubber sleeve are removed efficiently and continuously.

[0037] The structure of drive mechanism 6 is described in detail below, referring to... Figure 3 , Figure 4 and Figure 6The drive mechanism 6 includes an internally threaded tube 61 coaxially fixedly mounted on the side of the turntable 3 away from the servo motor 2. The internal threaded tube 61 is internally threaded with a threaded rod 62. One end of the threaded rod 62 extends to the outside of the internally threaded tube 61 and is coaxially fixedly connected with a bolt head. A rotating ring 63 is coaxially rotatably connected to the threaded rod 62. The rotating ring 63 is located outside the internally threaded tube 61. The drive mechanism 6 also includes a sleeve 64 slidably sleeved on the internally threaded tube 61. One end of the sleeve 64 is fixedly connected to the rotating ring 63. Connecting rods 65 are hinged to both ends of the inner support plate 5 near the axis of the sleeve 64. The other end of the connecting rod 65 is hinged to the outer circumference of the sleeve 64. The two connecting rods 65 are parallel to each other and inclined. Several connecting rods 65 located at one end of several inner support plates 5 are arranged in a circular array around the sleeve 64. Specifically, the side of the connecting rod 65 away from the axis of the sleeve 64 is set towards the turntable 3, and the side of the connecting rod 65 near the axis of the sleeve 64 is set away from the turntable 3.

[0038] When the operator uses a hand tool to rotate the threaded rod 62 (at which time the servo motor 2 is in the off state), the output shaft of the servo motor 2 is locked due to its own brake structure, which restricts the turntable 3 and the internal threaded tube 61 fixed thereto from rotating with the threaded rod 62. This constraint condition makes the threaded connection between the threaded rod 62 and the internal threaded tube 61 come into play: the threaded rod 62 is forced to move toward the turntable 3 along its own axis (i.e., screw in).

[0039] Meanwhile, the inner support plate 5 is restricted from rotating by the cooperation of its slider 51 and the movable groove 31. The inner support plate 5 further restricts the rotation of the sleeve 64 and the rotating ring 63 by the connecting rod 65. Therefore, the rotating ring 63 will not rotate with the threaded rod 62, but will be pushed to move synchronously with the axial movement of the threaded rod 62. The moving rotating ring 63 drives the sleeve 64 to move closer to the turntable 3.

[0040] The movement of the sleeve 64 drives one end of the connecting rod 65 hinged to it. Since the position of the inner support plate 5 is constrained (it can only translate), the other end of the connecting rod 65 pushes the inner support plate 5 away from the axis of the sleeve 64. The inner support plate 5, the two connecting rods 65 and the sleeve 64 together form a parallel four-bar linkage. This structural characteristic ensures that the inner support plate 5 always maintains a horizontal posture during the movement and will not deflect. As a result, all the inner support plates 5 move synchronously and smoothly away from the axis of the sleeve 64, thereby achieving effective internal support and fixation of the rubber sleeve. When the arc-shaped surfaces of all the inner support plates 5 are in close contact with the inner circumference of the rubber sleeve, and the effective internal support and fixation of the rubber sleeve is completed, the axis of the arc-shaped surface of the inner support plate 5 is collinear with the axis of the sleeve 64.

[0041] After the internal support is secured, the operator stops rotating the threaded rod 62. At this point, relying on the inherent self-locking property of the threaded connection between the threaded rod 62 and the internal threaded tube 61, the entire mechanism (including the position of the internal support plate 5) is reliably locked in its current position. This ensures that the rubber sleeve remains stable in subsequent operations and will not loosen.

[0042] It should be noted that the servo motor 2, the lead screw slide 42, and the electric telescopic rod 43 are all electrically connected to an external control device. The operator can flexibly control the start, stop, and speed of the servo motor 2, the travel and speed of the lead screw slide 42, and the extension and retraction position of the electric telescopic rod 43 through this control device. By visual operation combined with the control device, the operator can accurately control the downward pressing position of the electric telescopic rod 43 driving the cutter 44, as well as the path length of the lead screw slide 42 driving the cutter 44. This design gives the device good adaptability, enabling it to efficiently and accurately remove burrs from cylindrical rubber sleeves of different lengths and wall thicknesses.

[0043] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A deburring device for rubber product manufacturing, comprising a base plate (1), characterized in that: A servo motor (2) is fixedly installed on the upper side wall of the base plate (1). A turntable (3) is coaxially fixedly connected to the output shaft of the servo motor (2). Several inner support plates (5) are slidably arranged in a ring array on the side of the turntable (3) away from the servo motor (2). A driving mechanism (6) is arranged between the several inner support plates (5). The driving mechanism (6) is used to drive all the inner support plates (5) to move synchronously towards or away from the axis of the turntable (3). The side of the inner support plate (5) away from the driving mechanism (6) is set as an arc-shaped surface. When the driving mechanism (6) drives the inner support plate (5) to move to the position closest to the axis of the turntable (3), the arc-shaped surfaces of several inner support plates (5) are spliced ​​together to form a cylindrical side wall. A cutting mechanism (4) for cutting off the rough edges of the rubber sleeve is arranged on the upper side of the inner support plate (5).

2. The deburring device for rubber product manufacturing according to claim 1, characterized in that: The inner support plate (5) is fixedly connected to a slider (51) on the side near the servo motor (2). The turntable (3) has a movable groove (31) at the position corresponding to each slider (51). The slider (51) is slidably disposed inside the corresponding movable groove (31).

3. The deburring device for rubber product manufacturing according to claim 1, characterized in that: The drive mechanism (6) includes an internally threaded tube (61) coaxially fixed on the turntable (3) on the side away from the servo motor (2), and the internally threaded tube (61) is connected to a threaded rod (62).

4. The deburring device for rubber product manufacturing according to claim 3, characterized in that: One end of the threaded rod (62) extends to the outside of the internal threaded tube (61) and is coaxially fixedly connected to a bolt head. A rotating ring (63) is coaxially rotatably connected to the threaded rod (62), and the rotating ring (63) is located outside the internal threaded tube (61).

5. The deburring device for rubber product manufacturing according to claim 4, characterized in that: The drive mechanism (6) further includes a sleeve (64) that is slidably sleeved on the internal threaded tube (61), one end of which is fixedly connected to the rotating ring (63).

6. The deburring device for rubber product manufacturing according to claim 5, characterized in that: The inner support plate (5) is hinged to both ends on the side near the axis of the sleeve (64). The other end of the connecting rod (65) is hinged to the outer circumference of the sleeve (64). The two connecting rods (65) are parallel to each other and inclined. The connecting rods (65) located at one end of the inner support plate (5) are arranged in a ring array around the sleeve (64).

7. The deburring device for rubber product manufacturing according to claim 6, characterized in that: The connecting rod (65) is positioned with the side away from the axis of the sleeve (64) facing towards the turntable (3), and the connecting rod (65) is positioned with the side near the axis of the sleeve (64) facing away from the turntable (3).

8. The deburring device for rubber product manufacturing according to claim 1, characterized in that: The cutting mechanism (4) includes a mounting bracket (41) fixedly installed on the upper side wall of the base plate (1). A screw slide (42) is fixedly installed on the top side inside the mounting bracket (41). An electric telescopic rod (43) is fixedly installed on the lower side wall of the screw slide (42). A cutter (44) is fixedly installed on the lower end of the piston rod of the electric telescopic rod (43) through a cutter holder.

Images