Feeding structure for a molding press

Abstract

The utility model discloses a kind of feeding structures for moulding press, including feeding base, guiding positioning assembly is equipped on feeding base, elastic buffer assembly is equipped on the side of the guiding positioning assembly, driving assembly is equipped on the one end of the feeding base, adjustable limiting component is equipped in the feeding base, the utility model cooperates with guiding positioning assembly and driving assembly by feeding base, so that guiding vertical plate can only move linearly along length direction and avoid lateral deviation, solve the problem that positioning accuracy is insufficient when workpiece is pushed and easily produces lateral deviation, cooperate adjustable limiting component and the mechanical adjustment of the initial position of guiding vertical plate, solve the problem that traditional fixed limiting structure is difficult to adapt to when different workpiece sizes demand different feeding initial positions, reach the effect of improving workpiece positioning accuracy, forming size stability and high production switching efficiency of multi-specification workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of molding presses, in particular to a feeding structure for a molding press. Background Art

[0002] Existing molding presses are manufactured and applied to the production of mobile phone lens sheets, and further enhance the optical-level precision control and micro-structure forming capability through the molding process. As precision optical elements, mobile phone lens sheets have extremely strict requirements on the surface finish, curvature precision, material uniformity and dimensional stability of the lens sheets, which need to be realized by the closed-loop temperature control system, nano-level pressure regulating device and high-precision molds matched with the molding press, so as to directly form complex optical surfaces such as aspheric surfaces and free-form surfaces, meet the requirements of the mobile phone camera module for the concentricity and optical performance consistency of multi-lens combination, and are compatible with the efficient forming of different optical materials such as glass and resin. It has become one of the supporting technologies for the manufacture of micro optical elements in the consumer electronics field, and forms technical complementarity with the high-precision molding demands of the automotive, medical equipment and other industries, jointly promoting the diversified development of the molding process in the process of industrial automation.

[0003] The prior art has the problems that lateral deviation is prone to occur when components are pushed, and the traditional fixed limiting structure is difficult to adapt to the different requirements for the initial feeding position of different lens frame sizes, resulting in insufficient positioning precision of the lens frame and poor stability of the forming dimension, which affects the product quality, and the production switching efficiency of multi-specification lens frames is low due to the inconvenient adjustment of the initial position. Contents of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a feeding structure for a molding press. Through the sliding engagement of two parallel guide grooves along the length of the top surface of the feeding base with the T-shaped slider at the bottom of the guide plate in the guide positioning assembly, and the lead screw and lead screw nut transmission connection in the drive assembly, the guide plate can only move linearly along the length direction, avoiding lateral offset. This solves the problem of insufficient positioning accuracy caused by lateral offset during workpiece pushing. Simultaneously, in conjunction with the threaded connection between the adjusting screw and the side wall of the feeding base in the adjustable limit assembly, and the fixed connection between the adjusting block and the limit baffle, rotating the adjusting handle drives the adjusting screw in or out, achieving the initial positioning of the guide plate. The mechanical adjustment of the position solves the problem that traditional fixed limiting structures cannot adapt to the different initial feeding position requirements of different workpiece sizes, thus improving the workpiece positioning accuracy, forming size stability, and production switching efficiency of multi-specification workpieces. Through the sliding insertion of the buffer plate at both ends of the elastic buffer assembly with the buffer groove of the guide plate, the elastic connection of the buffer spring at both ends with the buffer groove and the buffer plate respectively, and the soft contact interface of the rubber buffer pad on the side wall of the buffer plate, the impact force is absorbed by the elastic deformation of the buffer spring and the deformation of the rubber buffer pad itself when the workpiece is positioned and pushed. This solves the problem that traditional hard contact positioning is prone to workpiece deformation, thus achieving the effect of protecting the surface quality of the workpiece and improving the forming qualification rate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A feeding structure for a molding machine includes a feeding base, a guide and positioning component on the feeding base, an elastic buffer component on one side of the guide and positioning component, a driving component at one end of the feeding base, and an adjustable limiting component inside the feeding base. The feeding base is a horizontally arranged rectangular plate with two parallel guide grooves along its length on its top surface, and a mounting groove between the two guide grooves. The guide and positioning component includes two guide plates symmetrically arranged on the feeding base and a slider on the bottom surface of each guide plate. The slider slides... The drive assembly includes a drive motor, a converter, a lead screw, and a lead screw nut. The converter converts the vertical rotational power of the drive motor into the parallel rotational power of the lead screw. The drive motor is fixedly mounted on one end of the feeding base via a motor encoder plate. The lead screw is horizontally positioned in the mounting groove of the feeding base. One end of the lead screw is connected to the output shaft of the drive motor via the converter, and the other end is rotatably connected to the feeding base via a bearing seat. The lead screw nut is sleeved on the lead screw and threadedly connected to it. The top end of the lead screw nut is fixedly connected to the bottom surface of one of the guide plates.

[0007] The guide groove has a T-shaped cross-section, and the slider has a T-shaped cross-section that matches the guide groove.

[0008] The adjustable limiting component includes a limiting baffle and an adjusting screw. The limiting baffle is vertically installed at the end of the feeding base away from the drive motor, and the limiting baffle is fixedly connected to another guide plate.

[0009] An adjusting block is fixedly connected to the bottom surface of the limiting baffle. The adjusting block is slidably engaged in the mounting groove. The adjusting screw is horizontally inserted through the side wall of the feeding base and threadedly connected to the feeding base. One end of the adjusting screw extends into the mounting groove and is rotatably connected to the adjusting block through a ball bearing.

[0010] An adjustment handle is fixedly connected to the end of the adjusting screw away from the adjusting block.

[0011] The elastic buffer assembly includes a buffer plate, a horizontal support plate, and a buffer spring, with the buffer plate vertically disposed on one side of the guide plate.

[0012] The inner wall of the guide plate is provided with a buffer groove along the height direction, and both ends of the buffer plate extend to one side into the buffer groove.

[0013] One end of the buffer spring is fixedly connected to the bottom of the buffer groove, and the other end is fixedly connected to the end of the buffer plate.

[0014] The buffer plate has rubber buffer pads on its side walls.

[0015] One side of the guide plate is fixedly connected to one side of the horizontal support plate.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. By using two parallel guide grooves opened along the length direction on the top surface of the feeding base to slide and engage with the T-shaped slider at the bottom of the guide plate in the guide positioning assembly, and the lead screw and lead screw nut in the drive assembly to drive the guide plate to move only in a straight line along the length direction and avoid lateral offset, the problem of insufficient positioning accuracy caused by lateral offset during workpiece pushing in the background technology is solved. At the same time, with the threaded connection between the adjusting screw and the side wall of the feeding base in the adjustable limit assembly, and the fixed connection between the adjusting block and the limit baffle, the mechanical adjustment of the initial position of the guide plate is achieved by rotating the adjusting handle to drive the adjusting screw to screw in or out. This solves the problem that the traditional fixed limit structure is difficult to adapt to the different initial position requirements of different workpiece sizes, and achieves the effect of improving workpiece positioning accuracy, forming size stability and high efficiency of production switching of multi-specification workpieces.

[0018] 2. By sliding the buffer plate at both ends of the elastic buffer assembly into the buffer groove of the guide plate, and with the elastic connection of the buffer spring at both ends to the buffer groove and the buffer plate respectively, as well as the soft contact interface of the rubber buffer pad on the side wall of the buffer plate, the impact force is absorbed by the elastic deformation of the buffer spring and the deformation of the rubber buffer pad itself when the workpiece is positioned and pushed. This solves the problem that traditional hard contact positioning is prone to workpiece deformation, and achieves the effect of protecting the surface quality of the workpiece and improving the forming qualification rate. Attached Figure Description

[0019] Figure 1 This is one of the perspective views of this utility model.

[0020] Figure 2 This is the second perspective view of this utility model.

[0021] Figure 3 This is a cross-sectional view of the present invention.

[0022] Figure 4 This is the third perspective view of this utility model.

[0023] Figure 5 This is a cross-sectional view of the elastic buffer component of this utility model.

[0024] Explanation of icon numbers:

[0025] 1-Feeding base, 10-Rectangular plate, 11-Guide slide, 12-Mounting slot, 2-Guide positioning assembly, 20-Guide upright plate, 200-Buffer groove, 21-Slider, 3-Elastic buffer assembly, 30-Buffer plate, 31-Horizontal support plate, 32-Buffer spring, 33-Rubber buffer pad, 4-Drive assembly, 40-Drive motor, 41-Converter, 42-Lead screw, 43-Lead screw nut, 44-Motor code plate, 45-Bearing seat, 5-Adjustable limit assembly, 50-Limit baffle, 51-Adjusting screw, 52-Adjusting block, 53-Ball bearing, 54-Adjusting handle. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings:

[0027] Example 1:

[0028] like Figure 1-5As shown, this utility model relates to a feeding structure for a molding machine, including a feeding base 1, a guide and positioning component 2 on the feeding base 1, an elastic buffer component 3 on one side of the guide and positioning component 2, a driving component 4 at one end of the feeding base 1, and an adjustable limiting component 5 inside the feeding base 1. The feeding base 1 is a horizontally arranged rectangular plate 10, with two parallel guide grooves 11 opened along the length direction on its top surface, and an installation groove 12 between the two guide grooves 11. The guide and positioning component 2 includes two guide plates 20 symmetrically arranged on the feeding base 1 and a slider 21 on the bottom surface of each guide plate 20. The slider 21 slides and locks... The drive assembly 4 includes a drive motor 40, a converter 411, a lead screw 42, and a lead screw nut 43, which is connected within the guide groove 11. The drive assembly 4 includes a drive motor 40, a converter 411, a lead screw 42, and a lead screw nut 43. The converter 41 converts the vertical rotational power of the drive motor 40 into the parallel rotational power of the lead screw. The drive motor 40 is fixedly mounted on one end of the feeding base 1 via a motor encoder 44. The lead screw 42 is horizontally positioned in the mounting groove 12 of the feeding base 1. One end of the lead screw 42 is connected to the output shaft of the drive motor 40 via the converter 41, and the other end is rotatably connected to the feeding base 1 via a bearing seat 45. The lead screw nut 43 is sleeved on the lead screw 42 and threadedly connected to the lead screw. The top end of the lead screw nut 43 is connected to one of the guide rails. The bottom surface of plate 20 is fixedly connected; the cross-section of guide groove 11 is T-shaped, and the cross-section of slider 21 is T-shaped to match the guide groove; the adjustable limiting component 5 includes a limiting baffle 50 and an adjusting screw 51. The limiting baffle 50 is vertically set at the end of the feeding base 1 away from the drive motor 40, and the limiting baffle 50 is fixedly connected to another guide plate 20; an adjusting block 52 is fixedly connected to the bottom surface of the limiting baffle 50, and the adjusting block 52 is slidably engaged in the mounting groove 12. The adjusting screw 51 is horizontally inserted into the side wall of the feeding base 1 and threadedly connected to the feeding base. One end of the adjusting screw 51 extends into the mounting groove 12 and is connected to the adjusting block 52 via a ball bearing. The bearing 53 is rotatably connected; the end of the adjusting screw 51 away from the adjusting block 52 is fixedly connected to the adjusting handle 54; the elastic buffer assembly 3 includes a buffer plate 30, a horizontal support plate 31 and a buffer spring 32, the buffer plate 30 is vertically arranged on one side of the guide plate 20; a buffer groove 200 is opened along the height direction on the inner side wall of the guide plate 20, and both ends of the buffer plate 30 extend to one side into the buffer groove 200; one end of the buffer spring 32 is fixedly connected to the bottom of the buffer groove 200, and the other end is fixedly connected to the end of the buffer plate 30; a rubber buffer pad 33 is provided on the side wall of the buffer plate 30; one side of the guide plate 20 is fixedly connected to one side of the horizontal support plate 31.

[0029] Example 2:

[0030] like Figure 1-5As shown, a feeding structure for a molding machine includes a feeding base 1, on which a guide and positioning component 2 is provided. The guide and positioning component 2 is used to guide and position the workpiece transferred to the workstation by the robot arm. An elastic buffer component 3 is provided on one side of the guide and positioning component 2 to buffer the workpiece during positioning and pushing. A drive component 4 is provided at one end of the feeding base 1 to provide driving force for the guide and positioning component 2 to push the workpiece. An adjustable limiting component 5 is provided inside the feeding base 1 to adjust the initial position of the guide and positioning component 2. The feeding base 1 is a horizontally arranged rectangular plate 10, with its top surface along... Two parallel guide grooves 11 are provided along the length direction, and a mounting groove 12 is provided between the two guide grooves 11; the guide positioning assembly 2 includes two guide plates 20 symmetrically arranged on the feeding base 1 and a slider 21 provided at the bottom of each guide plate 20. The slider 21 is slidably engaged in the guide groove 11. The cross-section of the guide groove 11 is T-shaped, and the cross-section of the slider 21 is T-shaped to match the guide groove 11; the drive assembly 4 includes a drive motor 40, a converter 41, a lead screw 42, and a lead screw nut 43. The converter 41 is composed of a mounting box, a worm gear, and a worm wheel; the converter 41 is used to convert the vertical rotational power of the drive motor 40 into the (horizontal) parallel rotation of the lead screw 42. Power: The drive motor 40 is fixedly installed at one end of the feeding base 1 via the motor encoder 44. The lead screw 42 is horizontally set in the mounting groove 12 of the feeding base 1. One end of the lead screw 42 is connected to the output shaft of the drive motor 40 via the converter 41, and the other end is rotatably connected to the feeding base 1 via the bearing seat 45. The lead screw nut 43 is sleeved on the lead screw 42 and threadedly connected to the lead screw 42. The top end of the lead screw nut 43 is fixedly connected to the bottom surface of one of the guide plates 20. The feeding base 1 is used to install the feeding mechanism on the molding machine. Two parallel guide grooves 11 opened along the length of its top surface form a sliding engagement with the T-shaped section of the slider 21 in the guide positioning assembly 2, so that... The guide plate 20 moves stably along its length. The guide plate 20 is used to cooperate with the guide groove 11 through the bottom slider 21. The buffer groove 200 opened on its side forms a sliding plug connection with the two ends of the buffer plate 30 of the elastic buffer assembly 3, so that the buffer plate 30 can reciprocate along the buffer groove 200 of the guide plate 20 to absorb positioning impact. The drive motor 40 is fixedly installed above one end of the feeding base 1 through the motor code plate 44. The lead screw 42 is connected to the output shaft of the drive motor 40 through the converter 41. The other end is rotatably connected to the feeding base 1 through the bearing seat 45. The lead screw nut 43 is fixedly connected to the guide plate 20 to form a lead screw pair transmission connection.The lead screw nut 43 is fitted onto the lead screw 42 and threadedly connected to it. When the lead screw 42 rotates, the threaded engagement causes the lead screw nut 43 to drive the guide plate 20 to slide along the guide groove 11, thereby completing the workpiece pushing action. This, in conjunction with the guide plate 20 and buffer plate 30 of the feeding base 1 at the other end, completes the workpiece positioning.

[0031] like Figure 1-4 As shown, the adjustable limiting assembly 5 includes a limiting baffle 50 and an adjusting screw 51. The limiting baffle 50 is vertically disposed at the end of the feeding base 1 away from the drive motor 40, and the limiting baffle 50 is fixedly connected to another guide plate 20. An adjusting block 52 is fixedly connected to the bottom surface of the limiting baffle 50, and the adjusting block 52 is slidably engaged in the mounting groove 12. The adjusting screw 51 is horizontally inserted through the side wall of the feeding base 1 and threadedly connected to the feeding base 1. One end of the adjusting screw 51 extends into the mounting groove and is rotatably connected to the adjusting block 52 through a ball bearing 53. An adjusting handle 54 is fixedly connected to the end of the adjusting screw 51 away from the adjusting block 52.

[0032] like Figure 1-5 As shown, the elastic buffer assembly 3 includes a buffer plate 30, a horizontal support plate 31, and a buffer spring 32. The buffer plate 30 is vertically disposed on one side of the guide plate 20. A buffer groove 200 is formed on the inner side wall of the guide plate 20 along the height direction. Both ends of the buffer plate 30 extend to one side into the buffer groove 200. One end of the buffer spring 32 is fixedly connected to the bottom of the buffer groove 200, and the other end is fixedly connected to the end of the buffer plate 30. A rubber buffer pad 33 is provided on the side wall of the buffer plate 30. One side of the guide plate 20 is fixedly connected to one side of the horizontal support plate 31. Each of the two guide plates 20 has a height difference between its horizontal support plates 31. When the drive motor 40 is started, causing one guide plate 20 to move closer to the other guide plate 20, the two horizontal support plates 31 can cross each other.

[0033] Working principle: Two parallel guide grooves 11 on the top surface of the feeding base 1 slide and engage with the T-shaped slider 21 at the bottom of the guide plate 20, allowing the guide plate 20 to move only in a straight line along its length, avoiding lateral offset and providing a guiding path for subsequent workpiece pushing; the buffer groove 200 on the inner wall of the guide plate 20 slides into the buffer plate 30 of the elastic buffer assembly 3, with the buffer spring 32 fixed at both ends to the bottom of the buffer groove 200 and the end of the buffer plate 30, respectively, and the rubber buffer pad 33 adhering to the side wall of the buffer plate 30 to form a soft contact interface, absorbing impact force during positioning to protect the workpiece and prevent... Its deformation; the drive motor 40 in the drive assembly 4 is rigidly fixed to the end of the feeding base 1 through the motor code plate 44. The worm and worm wheel of the converter 41 mesh in the mounting box to form a power steering mechanism, which converts the vertical rotation power of the motor into the parallel rotation power of the lead screw 42. The lead screw 42 is horizontally inserted into the mounting groove 12 of the feeding base 1, and is supported by the bearing seat 45. The lead screw nut 43 is threaded onto the lead screw 42 and fixed to the bottom surface of the guide plate 20 by bolts, forming a lead screw pair transmission connection, realizing the conversion of rotational motion to linear motion; the adjustable limit assembly 5 has a limit stop. The plate 50 is slidably engaged with the mounting groove 12 via the bottom adjusting block 52. The adjusting screw 51 passes through the threaded hole on the side wall of the feeding base 1 and is rotatably connected to the ball bearing 53 at the end of the adjusting block 52. The adjusting handle 54 is fixed to the outer end of the adjusting screw 51. By rotating the adjusting handle 54, the adjusting screw 51 is screwed into or out of the mounting groove 12, causing the adjusting block 52 to move, thereby mechanically adjusting the initial position of the guide plate 20 connected to the limit baffle 50. When the drive motor 40 starts, its output shaft meshes with the worm gear and worm wheel in the converter 41 to rotate vertically. The force is converted into the parallel rotational power of the lead screw 42. The rotation of the lead screw 42 drives the lead screw nut 43 to move axially. Since the lead screw nut 43 is fixedly connected to the guide plate 20, it drives the T-shaped slider 21 at the bottom of the guide plate 20 to slide along the guide groove 11, realizing the pushing action of the workpiece and accurately pushing the workpiece to the pressing machine station. During this process, the buffer plate 30 of the elastic buffer assembly 3 moves synchronously with the guide plate 20. The buffer spring 32 absorbs the impact force generated at the moment of positioning through elastic deformation. The rubber buffer pad 33 further buffers the hard contact of the workpiece through its own deformation to prevent the workpiece from deforming.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.

Claims

1. A feeding structure for a molding machine, comprising a feeding base, characterized in that: The feeding base is equipped with a guide positioning component, an elastic buffer component on one side of the guide positioning component, a drive component at one end of the feeding base, and an adjustable limiting component inside the feeding base. The feeding base is a horizontally arranged rectangular plate with two parallel guide grooves along its length on its top surface, and an installation groove between the two guide grooves. The guide positioning component includes two guide plates symmetrically arranged on the feeding base and a slider on the bottom surface of each guide plate. The slider is slidably engaged in the guide groove. The drive component includes a drive motor, a converter, a lead screw, and a lead screw nut. The converter converts the vertical rotational power of the drive motor into the parallel rotational power of the lead screw. The drive motor is fixedly installed at one end of the feeding base via a motor encoder. The lead screw is horizontally arranged in the installation groove of the feeding base. One end of the lead screw is connected to the output shaft of the drive motor via the converter, and the other end is rotatably connected to the feeding base via a bearing seat. The lead screw nut is sleeved on the lead screw and threadedly connected to the lead screw. The top end of the lead screw nut is fixedly connected to the bottom surface of one of the guide plates.

2. The feeding structure for a molding machine according to claim 1, characterized in that: The guide groove has a T-shaped cross-section, and the slider has a T-shaped cross-section that matches the guide groove.

3. The feeding structure for a molding machine according to claim 1, characterized in that: The adjustable limiting component includes a limiting baffle and an adjusting screw. The limiting baffle is vertically installed at the end of the feeding base away from the drive motor, and the limiting baffle is fixedly connected to another guide plate.

4. The feeding structure for a molding machine according to claim 3, characterized in that: An adjusting block is fixedly connected to the bottom surface of the limiting baffle. The adjusting block is slidably engaged in the mounting groove. The adjusting screw is horizontally inserted through the side wall of the feeding base and threadedly connected to the feeding base. One end of the adjusting screw extends into the mounting groove and is rotatably connected to the adjusting block through a ball bearing.

5. The feeding structure for a molding machine according to claim 4, characterized in that: An adjustment handle is fixedly connected to the end of the adjusting screw away from the adjusting block.

6. The feeding structure for a molding machine according to claim 1, characterized in that: The elastic buffer assembly includes a buffer plate, a horizontal support plate, and a buffer spring, with the buffer plate vertically disposed on one side of the guide plate.

7. The feeding structure for a molding machine according to claim 6, characterized in that: The inner wall of the guide plate is provided with a buffer groove along the height direction, and both ends of the buffer plate extend to one side into the buffer groove.

8. The feeding structure for a molding machine according to claim 6, characterized in that: One end of the buffer spring is fixedly connected to the bottom of the buffer groove, and the other end is fixedly connected to the end of the buffer plate.

9. A feeding structure for a molding machine according to claim 6, characterized in that: The buffer plate has rubber buffer pads on its side walls.

10. A feeding structure for a molding machine according to claim 6, characterized in that: One side of the guide plate is fixedly connected to one side of the horizontal support plate.

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