Double-station plastic forming automatic pressing machine

Abstract

When the double-station plastic forming automatic pressing machine is used, firstly, a movable bearing table is driven by a driving assembly in the forward direction, a second lower mold is driven to be located above a second demolding station table, a first lower mold is driven to be located under an upper mold, and an operator puts a to-be-pressed plastic material into the first lower mold; the automatic press body is started to press the plastic material, in the pressing process, an operator can place the material to be pressed in the second lower mold, after pressing is completed, the driving assembly reversely drives the bearing table to drive the first lower mold to be located above the first demolding station table and drive the second lower mold to be located under the upper mold, and the press is started to press the plastic material; an operator takes out a formed workpiece in the first lower mold, a plastic material is put in the formed workpiece, after pressing is completed, the driving assembly drives the bearing table in the forward direction, the second light barrier is induced, and the operation is repeated. In this way, taking-out of the formed plastic workpiece and putting-in of the to-be-pressed material are synchronous with pressing forming, and the machining efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of plastic molding equipment, and in particular to a double-station automatic plastic molding press. Background Art

[0002] An automatic plastic molding press is a device used in the production of plastic products. It molds plastic materials into the desired shape by applying pressure. This machine is usually used to produce plastic parts, packaging materials and other plastic products. Most existing automatic plastic molding presses use single-station operation, which has certain defects. During use, the operator needs to first remove the already pressed plastic workpiece from the mold, and then put the plastic material to be pressed into the mold. Only after completing these steps can the automatic plastic molding press press the newly placed plastic material. This process causes a long pause between each operation, reducing the overall processing efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of this application is to provide a double-station automatic plastic molding press to solve the problems raised in the above background technology.

[0004] According to one aspect of the present application, a double-station plastic molding automatic press comprises an automatic press body, a first demolding station, a second demolding station, a linear slide, a movable bearing platform, a driving assembly, a first lower mold, a second lower mold and an upper mold, the first demolding station and the second demolding station are fixedly provided on both sides of the plastic molding station of the automatic press body, and the upper table of the plastic molding station is flush with the upper tables of the first demolding station and the second demolding station, and the upper tables of the three are connected to form an integral processing and molding table, a linear slide is fixedly provided on the processing and molding table along its length direction, a movable bearing platform is slidably provided on the linear slide, the movable bearing platform is connected to the driving assembly, the driving assembly can drive the movable bearing platform to move along the linear slide above the processing and molding table, the driving assembly is fixedly installed on the processing and molding table, and the upper surface of the movable bearing platform is installed with a first lower mold along its moving direction A mold and a second lower mold, and the first lower mold and the second lower mold are both fixedly installed on the upper surface of the movable supporting platform through a fixing component 1, a lower pressing plate is arranged above the plastic molding station table of the automatic press body, the lower pressing plate is connected to the hydraulic system of the automatic press body, an upper mold is fixedly installed on the lower surface of the lower pressing plate through a fixing component 2, the upper mold is adapted to the first lower mold and the second lower mold, and a sensing component is also installed on the processing and molding table, the sensing component is used to sense and detect the position of the movable supporting platform, when working, when the sensing component senses and detects that the movable supporting platform drives the second lower mold to move to the surface of the second demolding station table, the first lower mold is located directly below the upper mold, and when the sensing component senses and detects that the movable supporting platform drives the first lower mold to move to the surface of the first demolding station table, the second lower mold is located directly below the upper mold.

[0005] Preferably, three of the linear slide rails are fixedly provided at the middle position of the processing and forming table, and the three linear slide rails are equidistantly and parallelly distributed along the width direction of the processing and forming table, a plurality of sliders are evenly and equidistantly fixedly provided at the bottom of the movable supporting platform, and the movable supporting platform is slidably connected to the linear slide rails through the sliders.

[0006] Preferably, two groups of the driving components are symmetrically installed on the processing and forming table on both sides of the linear slide rail, and the two groups of the driving components are connected to the movable supporting platform, and the two groups of the driving components are synchronously driven.

[0007] Preferably, the driving assembly includes a driving motor, a lead screw and a threaded sleeve. The driving motor is fixedly installed on one end of the processing and forming table through a mounting plate. The output shaft of the driving motor is fixedly connected to one end of the lead screw. The other end of the lead screw extends to the other end of the processing and forming table, and the axial direction of the lead screw is parallel to the axial direction of the linear slide rail. Both ends of the lead screw are installed on the processing and forming table through a supporting seat. A threaded sleeve is threadedly connected to the lead screw, and the threaded sleeve is fixedly arranged on the bottom of the movable supporting platform.

[0008] Preferably, the first lower mold and the second lower mold are symmetrically distributed and respectively close to the two end portions of the movable supporting platform, and the upper surface of the movable supporting platform is located in the installation area position of the first lower mold and the second lower mold, and a plurality of T-shaped slide grooves 1 are equidistant and parallel, each of the T-shaped slide grooves 1 runs through the two side edges in the width direction of the movable supporting platform, and each of the T-shaped slide grooves 1 is symmetrically slidably arranged with two groups of the fixing components 1, and the lower surface of the lower pressure plate is provided with T-shaped slide grooves 2 at its four corners, and each of the T-shaped slide grooves 2 extends from the side position of the lower pressure plate to its center position, and each of the T-shaped slide grooves 2 is slidably arranged with the fixing component 2.

[0009] Preferably, the fixing component 1 and the fixing component 2 have the same structure; the fixing component 1 comprises a T-shaped sliding block, a threaded column and a clamping plate, the T-shaped sliding block is slidably arranged in the T-shaped sliding groove, a threaded column is vertically fixed on the T-shaped sliding block, and an end portion of the threaded column extends beyond the T-shaped sliding groove and passes through the clamping plate, and the end portion of the threaded column passes through the clamping plate and is threadedly connected with a locking nut, and the clamping plate is used to fix the first lower mold and the second lower mold; the fixing component 2 comprises a T-shaped sliding block, a threaded column and a clamping plate, the T-shaped sliding block is slidably arranged in the T-shaped sliding groove, a threaded column is vertically fixed on the T-shaped sliding block, and the two ends of the threaded column extend beyond the T-shaped sliding groove and pass through the clamping plate, and the two ends of the threaded column pass through the clamping plate and are threadedly connected with a locking nut, and the clamping plate is used to fix the upper mold.

[0010] Preferably, the sensing component includes photoelectric sensor 1, photoelectric sensor 2, light baffle 1 and light baffle 2, and the photoelectric sensor 1 and the photoelectric sensor 2 are respectively installed on the surfaces of the first demolding station and the second demolding station at one end away from the plastic molding station through a mounting support plate, and the movable supporting platform is respectively fixed with light baffle 1 and light baffle 2 at both ends along its moving direction, and the light baffle 1 is arranged close to the photoelectric sensor 1, and the light baffle 2 is arranged close to the photoelectric sensor 2. During operation, when the photoelectric sensor 1 senses and detects the light baffle 1, the first lower mold is located on the surface of the first demolding station and the second lower mold is located directly below the upper mold, and when the photoelectric sensor 2 senses and detects the light baffle 2, the second lower mold is located on the surface of the second demolding station and the first lower mold is located directly below the upper mold.

[0011] The advantages of the present application compared with the prior art are: a double-station plastic molding automatic press of the present application, when in use, first drives the mobile carrier table forwardly through the driving component so that the light shielding plate 2 on it is detected by the photoelectric sensor 2, at this time the second lower mold is located above the second demolding station and the first lower mold is located directly below the upper mold, then the operator places the plastic material to be pressed in the first lower mold, and then starts the automatic press body so that its hydraulic system pushes the lower pressure plate downward to drive the upper mold and the first lower mold to assemble and cooperate to press and mold the plastic material, during this pressing process, the operator can place the plastic material to be pressed in the second lower mold, when the first lower mold and the upper mold are pressed and molded, the hydraulic system of the automatic press body pulls the lower pressure plate upward to drive the upper mold to separate from the first lower mold, and then the driving component drives the mobile carrier table in the reverse direction so that the light shielding plate 1 on it is detected by the photoelectric sensor 1, at this time the first lower mold is located above the first demolding station and the second lower mold is located directly below the upper mold, and then starts the automatic press. The main body causes its hydraulic system to push the lower pressure plate downward to drive the upper mold and the second lower mold to assemble and cooperate to press the plastic material into shape. During this pressing process, the operator takes out the plastic workpiece formed in the first lower mold and replaces the plastic material to be pressed in the first lower mold. When the second lower mold and the upper mold are pressed and molded, the hydraulic system of the automatic press body pulls the lower pressure plate upward to drive the upper mold to separate from the second lower mold. Then the driving component drives the mobile carrier forward so that the light baffle 2 on it is again detected by the photoelectric sensor 2. At this time, the second lower mold is located above the second demolding station and the first lower mold is located directly below the upper mold. Then the operator operates through the above steps again, and repeats this cycle. Therefore, the processing operation flow of the device can synchronize the removal of the molded plastic workpiece and the placement of the plastic material to be pressed with the pressing and molding process of the plastic material, reducing the time for the operator to take out the molded plastic workpiece from the mold and then put in the plastic material to be pressed before pressing and molding, thereby improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of a double-station automatic plastic molding press according to an embodiment of the present application.

[0013] Figure 2 This is a front view of a double-station automatic plastic molding press according to an embodiment of the present application.

[0014] Figure 3 It is a side view of a double-station automatic plastic molding press according to an embodiment of the present application.

[0015] Figure 4 It is a three-dimensional diagram of a movable supporting platform of a double-station automatic plastic molding press according to an embodiment of the present application.

[0016] Figure 5 This is another perspective of a three-dimensional diagram of a double-station automatic plastic molding press according to an embodiment of the present application.

[0017] Figure 6 It is a three-dimensional diagram of a lower pressing plate of a double-station automatic plastic molding press according to an embodiment of the present application.

[0018] Figure 7 This is a three-dimensional diagram of a movable supporting platform of a double-station automatic plastic molding press after movement according to an embodiment of the present application.

[0019] Figure numerals: 1, automatic press body; 101, plastic molding station; 2, first demoulding station; 3, second demoulding station; 4, linear slide; 5, mobile carrier; 501, slider; 502, T-shaped slide; 6, drive assembly; 601, drive motor; 602, lead screw; 603, threaded sleeve; 604, mounting plate; 7, first lower mold; 8, second lower mold; 9, upper mold; 10, processing and molding table; 11, fixed assembly Part one; 1101, T-shaped sliding block one; 1102, threaded column one; 1103, clamping plate one; 12, lower pressure plate; 1201, T-shaped slide groove two; 13, fixing component two; 1301, T-shaped sliding block two; 1302, threaded column two; 1303, clamping plate two; 14, sensing component; 1401, photoelectric sensor one; 1402, photoelectric sensor two; 1403, light shielding plate one; 1404, light shielding plate two; 1405, installation support plate. DETAILED DESCRIPTION

[0020] In order to make the content of this application easier to understand, the technical solutions in the embodiments of this application will be described clearly and completely in conjunction with the drawings in the embodiments of this application. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the attached drawings. Figure 2 In the context of the present invention, the words "inside" and "outside" refer to directions toward or away from the geometric center of a particular component, respectively. In addition, the terms "first", "second", etc. are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] like Figure 1 to Figure 7As shown, a double-station plastic molding automatic press comprises an automatic press body 1, a first demoulding station platform 2, a second demoulding station platform 3, a linear slide 4, a movable bearing platform 5, a driving assembly 6, a first lower mold 7, a second lower mold 8 and an upper mold 9. The first demoulding station platform 2 and the second demoulding station platform 3 are fixedly provided on both sides of the plastic molding station platform 101 of the automatic press body 1, and the upper surface of the plastic molding station platform 101 is flush with the upper surfaces of the first demoulding station platform 2 and the second demoulding station platform 3, and the upper surfaces of the three are connected to form an integral processing and molding table 10. Three linear slides 4 are fixedly provided on the processing and molding table 10 along its length direction. The three linear slides 4 are arranged on the processing and molding table The three linear slide rails 4 are evenly and evenly distributed in parallel along the width direction of the processing and forming table 10. A plurality of sliders 501 are evenly and equidistantly fixed at the bottom of the mobile carrier 5, and the mobile carrier 5 is slidably connected to the linear slide rails 4 through the sliders 501. The arrangement of the three linear slide rails 4 can better support the mobile carrier 5 to withstand the downward pressure applied by the upper and lower molds during pressing and forming; two sets of driving components 6 are symmetrically installed on both sides of the linear slide rails 4 on the processing and forming table 10, and the two sets of driving components 6 are connected to the mobile carrier 5, and the two sets of driving components 6 are synchronously driven, so that the mobile carrier 5 can be driven more stably and quickly, and the driving component 6 can drive the mobile carrier 5 The movable carrier 5 moves above the processing and forming table 10 along the linear slide rail 4; the upper surface of the movable carrier 5 is installed with a first lower mold 7 and a second lower mold 8 along its moving direction, and the first lower mold 7 and the second lower mold 8 are symmetrically distributed and respectively close to the two ends of the movable carrier 5, and the upper surface of the movable carrier 5 is located at the installation area of ​​the first lower mold 7 and the second lower mold 8. A plurality of T-shaped slide grooves 502 are equidistantly and parallelly provided, and each T-shaped slide groove 502 runs through both sides of the width direction of the movable carrier 5, and two sets of fixing components 11 are symmetrically slidably provided in each T-shaped slide groove 502, and the first lower mold 7 and the second lower mold 8 are fixedly installed by the fixing component 11 On the upper surface of the movable carrier platform 5; a lower pressing plate 12 is arranged above the plastic molding station 101 of the automatic press body 1, and the lower pressing plate 12 is connected to the hydraulic system of the automatic press body 1, and the lower surface of the lower pressing plate 12 is provided with two T-shaped slide grooves 1201 at its four corners, and each of the two T-shaped slide grooves 1201 extends from the side position of the lower pressing plate 12 to its center position, and each of the two T-shaped slide grooves 1201 is slidably provided with a fixing component 13, and an upper mold 9 is fixedly installed on the lower surface of the lower pressing plate 12 through the fixing component 13, and the upper mold 9 is adapted to the first lower mold 7 and the second lower mold 8, so that the first lower mold 7 and the second lower mold 8 can be pressed and formed with the upper mold 9;A sensing component 14 is also installed on the processing and molding table 10. The sensing component 14 is used to sense and detect the position of the mobile carrier 5. Specifically, the sensing component 14 includes a photoelectric sensor 1401, a photoelectric sensor 2 1402, a light baffle 1403 and a light baffle 2 1404. The photoelectric sensor 1401 and the photoelectric sensor 2 1402 are respectively installed on the first demolding station 2 and the second demolding station 3 through the mounting support plate 1405. The end of the table away from the plastic molding station 101, the two ends of the mobile carrier 5 along its moving direction are respectively fixed with a light baffle 1403 and a light baffle 2, and the light baffle 1403 is close to the photoelectric sensor. The first photoelectric sensor 1401 is provided, and the second light shielding plate 1404 is provided near the second photoelectric sensor 1402. When working, when the first photoelectric sensor 1401 senses and detects the first light shielding plate 1403, the first lower mold 7 is located on the first demolding station table 2 and the second lower mold 8 is located directly below the upper mold 9, so that the second lower mold 8 and the upper mold 9 are assembled to press and mold the plastic material. When the second photoelectric sensor 1402 senses and detects the second light shielding plate 1404, the second lower mold 8 is located on the second demolding station table 3 and the first lower mold 7 is located directly below the upper mold 9, so that the first lower mold 7 and the upper mold 9 are assembled to press and mold the plastic material. ;

[0022] In one embodiment, in combination Figure 1 to Figure 7 The driving assembly 6 includes a driving motor 601, a lead screw 602 and a threaded sleeve 603. The driving motor 601 is fixedly installed on one end of the processing and forming table 10 through a mounting plate 604. The output shaft of the driving motor 601 is fixedly connected to one end of the lead screw 602. The other end of the lead screw 602 extends to the other end of the processing and forming table 10, and the axial direction of the lead screw 602 is parallel to the axial direction of the linear slide 4. Both ends of the lead screw 602 are installed on the processing and forming table 10 through a supporting seat. The lead screw 602 is threadedly connected with a threaded sleeve 603, and the threaded sleeve 603 is fixedly arranged on the bottom of the movable supporting platform 5. In a specific implementation, the driving motor 601 can drive the lead screw 602 to rotate, and then drive the threaded sleeve 603 to move along the lead screw 602, so that the movable supporting platform 5 can move on the processing and forming table 10 along the linear slide 4, and then can drive the first lower mold 7 and the second lower mold 8 to move to the processing position.

[0023] In one embodiment, referring to Figures 4 to 6, the fixing assembly 11 and the fixing assembly 2 13 have the same structure; specifically, the fixing assembly 11 includes a T-shaped sliding block 1101, a threaded column 1102 and a clamping plate 1103, the T-shaped sliding block 1101 is slidably arranged in the T-shaped sliding groove 502, a threaded column 1102 is vertically fixed on the T-shaped sliding block 1101, and the end of the threaded column 1102 extends beyond the T-shaped sliding groove 502 and passes through the clamping plate 1103, and the end of the threaded column 1102 passes through After passing through the clamping plate 1103, a locking nut 1 is threadedly connected. The clamping plate 1103 is used to fix the first lower mold 7 and the second lower mold 8. During installation, the first lower mold 7 and the second lower mold 8 used are respectively placed in the corresponding installation areas on the movable carrier 5, and then the T-shaped sliding block 1101 is slid toward the side of the first lower mold 7 and the second lower mold 8, and then the clamping plate 1103 is pressed on the side of the first lower mold 7 and the second lower mold 8, and tightened and locked. Nut 1, so that the clamping plate 1103 fixedly connects the first lower mold 7 and the second lower mold 8 to the movable carrier 5; the fixing assembly 13 includes a T-shaped sliding block 1301, a threaded column 1302 and a clamping plate 1303, the T-shaped sliding block 1301 is slidably arranged in the T-shaped slide groove 1201, the T-shaped sliding block 1301 is vertically fixed with a threaded column 1302, and the end of the threaded column 1302 extends beyond the T-shaped slide groove 1201 and passes through the clamping plate 1303. 1303, and the end of the threaded column 1302 passes through the clamping plate 1303 and is threadedly connected with a locking nut 1303. The clamping plate 1303 is used to fix the upper mold 9. During installation, the upper mold 9 used is aligned with the lower surface of the lower pressure plate 12, and then the T-shaped sliding block 1301 is slid toward the side of the upper mold 9, the clamping plate 1303 is pressed on the side of the upper mold 9, and the locking nut 1303 is tightened so that the clamping plate 1303 fixes the upper mold 9 and the lower pressure plate 12.

[0024] Working principle: First, the first lower mold 7, the second lower mold 8 and the upper mold 9 to be used are installed on the movable carrier 5 and the lower pressing plate 12 respectively. When in use, the movable carrier 5 is first driven forward by the driving component 6 so that the light shielding plate 1404 thereon is sensed and detected by the photoelectric sensor 1402. At this time, the second lower mold 8 is located above the second demoulding station 3 and the first lower mold 7 is located directly below the upper mold 9. Then the operator places the plastic material to be pressed in the first lower mold 7 (such as Figure 1As shown), the automatic press body 1 is then started so that its hydraulic system pushes the lower pressing plate 12 downward to drive the upper mold 9 to assemble and cooperate with the first lower mold 7 to press and form the plastic material. During this pressing process, the operator can place the plastic material to be pressed in the second lower mold 8. When the first lower mold 7 and the upper mold 9 are pressed and formed, the hydraulic system of the automatic press body 1 pulls the lower pressing plate 12 upward to drive the upper mold 9 to separate from the first lower mold 7. Then the driving component 6 drives the mobile carrier 5 in reverse so that the light shielding plate 1403 thereon is detected by the photoelectric sensor 1401. At this time, the first lower mold 7 is located above the first demolding station 2 and the second lower mold 8 is located directly below the upper mold 9 (as shown in FIG. Figure 7 As shown), then start the automatic press body 1 so that its hydraulic system pushes the lower pressing plate 12 downward to drive the upper mold 9 and the second lower mold 8 to assemble and cooperate to press the plastic material. During this pressing process, the operator takes out the plastic workpiece formed in the first lower mold 7 and replaces the plastic material to be pressed in the first lower mold 7. When the second lower mold 8 and the upper mold 9 are pressed and molded, the hydraulic system of the automatic press body 1 pulls the lower pressing plate 12 upward to drive the upper mold 9 to separate from the second lower mold 8. Then the driving component 6 drives the mobile carrier 5 forward so that the light blocking plate 1404 thereon is again detected by the photoelectric sensor 1402. At this time, the second lower mold 8 is located above the second demolding station 3 and the first lower mold 7 is located directly below the upper mold 9. Then the operator operates again through the above steps, and repeats this cycle. Therefore, the processing operation flow of the device can synchronize the removal of the molded plastic workpiece and the placement of the plastic material to be pressed with the pressing and molding process of the plastic material, reducing the time for the operator to take out the molded plastic workpiece from the mold and then put in the plastic material to be pressed before pressing and molding, thereby improving the overall processing efficiency.

[0025] The above embodiments are only used to illustrate the technical solutions of the embodiments of the present application, rather than to limit them. Although the embodiments of the present application are described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents, without departing from the spirit and scope defined by the claims of the present application.

Claims

1. A double-station plastic molding automatic press, comprising an automatic press body (1), a first demoulding station (2), a second demoulding station (3), a linear slide rail (4), a movable bearing platform (5), a drive assembly (6), a first lower mold (7), a second lower mold (8) and an upper mold (9), characterized in that: A first demoulding station (2) and a second demoulding station (3) are fixedly provided on both sides of the plastic molding station (101) of the automatic press body (1), and the upper surface of the plastic molding station (101) is flush with the upper surfaces of the first demoulding station (2) and the second demoulding station (3), and the upper surfaces of the three are connected to form an integral processing and molding table (10), and a linear slide rail (4) is fixedly provided on the processing and molding table (10) along its length direction, and a movable bearing platform (5) is slidably provided on the linear slide rail (4), and the processing and molding table (10) is provided with a plurality of movable bearing platforms (5) on the plurality of movable bearing platforms (5). The movable carrier (5) is connected to a driving component (6), and the driving component (6) can drive the movable carrier (5) to move along the linear slide rail (4) above the processing and forming table (10). The driving component (6) is fixedly installed on the processing and forming table (10). The upper surface of the movable carrier (5) is provided with a first lower mold (7) and a second lower mold (8) along its moving direction, and the first lower mold (7) and the second lower mold (8) are both fixedly installed on the movable carrier through a fixing component (11). (5) upper surface, a lower pressing plate (12) is arranged above the plastic molding station (101) of the automatic press body (1), the lower pressing plate (12) is connected to the hydraulic system of the automatic press body (1), an upper mold (9) is fixedly installed on the lower surface of the lower pressing plate (12) through a fixing component 2 (13), the upper mold (9) is compatible with the first lower mold (7) and the second lower mold (8), and a sensing component (14) is also installed on the processing and molding table (10), and the sensing component (14) is used to sense The position of the movable support platform (5) is detected. When the sensing component (14) senses and detects that the movable support platform (5) drives the second lower mold (8) to move to the surface of the second demolding station (3), the first lower mold (7) is located directly below the upper mold (9); when the sensing component (14) senses and detects that the movable support platform (5) drives the first lower mold (7) to move to the surface of the first demolding station (2), the second lower mold (8) is located directly below the upper mold (9).

2. A double-station automatic plastic molding press according to claim 1, characterized in that: Three linear slide rails (4) are fixedly provided at a central position on the processing and forming table (10), and the three linear slide rails (4) are equidistantly and parallelly distributed along the width direction of the processing and forming table (10); a plurality of sliding blocks (501) are evenly and equidistantly fixedly provided at the bottom of the movable support platform (5), and the movable support platform (5) is slidably connected to the linear slide rails (4) via the sliding blocks (501).

3. A double-station automatic plastic molding press according to claim 2, characterized in that: Two groups of the driving components (6) are symmetrically installed on the processing and forming table (10) on both sides of the linear slide rail (4), and the two groups of the driving components (6) are connected to the movable supporting platform (5), and the two groups of the driving components (6) are synchronously driven.

4. A double-station automatic plastic molding press according to claim 3, characterized in that: The driving assembly (6) comprises a driving motor (601), a lead screw (602) and a threaded sleeve (603); the driving motor (601) is fixedly mounted on one end of the processing and forming table (10) via a mounting plate (604); the output shaft of the driving motor (601) is fixedly connected to one end of the lead screw (602); the other end of the lead screw (602) extends to the other end of the processing and forming table (10); and the axial direction of the lead screw (602) is parallel to the axial direction of the linear guide rail (4); both ends of the lead screw (602) are mounted on the processing and forming table (10) via a supporting seat; a threaded sleeve (603) is threadedly connected to the lead screw (602); and the threaded sleeve (603) is fixedly mounted on the bottom of the movable support platform (5).

5. A double-station automatic plastic molding press according to claim 1, characterized in that: The first lower mold (7) and the second lower mold (8) are symmetrically distributed and respectively close to the two end portions of the movable supporting platform (5). The upper surface of the movable supporting platform (5) is provided with a plurality of T-shaped slide grooves (502) equidistantly and parallelly at the installation area of ​​the first lower mold (7) and the second lower mold (8). Each of the T-shaped slide grooves (502) runs through both sides of the width direction of the movable supporting platform (5), and each of the T-shaped slide grooves (502) is symmetrically slidably arranged with two groups of the fixing components (11). The lower surface of the lower pressure plate (12) is provided with T-shaped slide grooves (1201) at the four corners thereof. Each of the T-shaped slide grooves (1201) extends from the side of the lower pressure plate (12) to its center, and each of the T-shaped slide grooves (1201) is slidably arranged with the fixing component (13).

6. A double-station automatic plastic molding press according to claim 5, characterized in that: The fixing component 1 (11) and the fixing component 2 (13) have the same structure; The fixing assembly (11) comprises a T-shaped sliding block (1101), a threaded column (1102) and a clamping plate (1103), wherein the T-shaped sliding block (1101) is slidably arranged in the T-shaped sliding groove (502), a threaded column (1102) is vertically fixedly arranged on the T-shaped sliding block (1101), and an end of the threaded column (1102) extends beyond the T-shaped sliding groove (502) and passes through the clamping plate (1103), and the end of the threaded column (1102) passes through the clamping plate (1103) and is threadedly connected with a locking nut, and the clamping plate (1103) is used to fix the first lower mold (7) and the second lower mold (8); The second fixing component (13) includes a second T-shaped sliding block (1301), a second threaded column (1302) and a second clamping plate (1303). The second T-shaped sliding block (1301) is slidably arranged in the second T-shaped sliding groove (1201). The second T-shaped sliding block (1301) is vertically fixed with a second threaded column (1302). The end of the second threaded column (1302) extends beyond the second T-shaped sliding groove (1201) and passes through the second clamping plate (1303). The end of the second threaded column (1302) passes through the second clamping plate (1303) and is threadedly connected with a second locking nut. The second clamping plate (1303) is used to fix the upper mold (9).

7. A double-station automatic plastic molding press according to claim 1, characterized in that: The sensing component (14) comprises a photoelectric sensor 1 (1401), a photoelectric sensor 2 (1402), a light shield 1 (1403) and a light shield 2 (1404); the photoelectric sensor 1 (1401) and the photoelectric sensor 2 (1402) are respectively installed on the table surface of the first demoulding station (2) and the second demoulding station (3) via an installation support plate (1405) at one end away from the plastic molding station (101); the light shield 1 (1403) and the light shield 2 are respectively fixedly provided at both ends of the movable supporting platform (5) along its moving direction, and the light shield 1 (1403) is close to the photoelectric sensor. One (1401) is set, and the light baffle two (1404) is set close to the photoelectric sensor two (1402). During operation, when the photoelectric sensor one (1401) senses and detects the light baffle one (1403), the first lower mold (7) is located on the table of the first demolding station (2) and the second lower mold (8) is located directly below the upper mold (9); when the photoelectric sensor two (1402) senses and detects the light baffle two (1404), the second lower mold (8) is located on the table of the second demolding station (3) and the first lower mold (7) is located directly below the upper mold (9).

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