CN114955536B

CN114955536B - Material taking system of plastic product hot-press forming machine

Info

Publication number: CN114955536B
Application number: CN202210599333.5A
Authority: CN
Inventors: 徐刚; 汤强; 张国峰; 高慧杰
Original assignee: Shaoxing Pengsheng Plastic Industry Co ltd
Current assignee: Shaoxing Pengsheng Plastic Industry Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2023-09-22
Anticipated expiration: 2042-05-30
Also published as: CN114955536A

Abstract

The invention discloses a material taking system of a plastic product hot-press forming machine, which comprises a transverse frame, a movable bin, a power device, a longitudinal beam, a movable seat, a first driving cylinder, a vertical arm, a telescopic arm, a second driving cylinder, an adjusting plate and a plurality of vacuum suckers, wherein the transverse frame is arranged on the movable bin; be provided with the spiral involute hole on the regulating plate, a plurality of vacuum chuck sliding connection is on the spiral involute hole, is provided with the spacing release mechanism that is used for spacing or unblock vacuum chuck removal between vacuum chuck and the regulating plate. The invention has the following advantages and effects: according to the scheme, a new mechanical structure is utilized, and the adjusting plate is provided with the spiral involute hole, the vacuum chuck is connected to the spiral involute in a sliding manner, so that vacuum chucks of proper plastics can be selected and the installation positions of the vacuum chucks can be adjusted according to products of different types, and then negative pressure adsorption is carried out on different plastic products in a matching manner; and meanwhile, the limiting unlocking mechanism can realize limiting or unlocking of the movement of the vacuum chuck, so that the position of the vacuum chuck can be conveniently adjusted.

Description

Material taking system of plastic product hot-press forming machine

Technical Field

The invention relates to the field of plastic processing equipment, in particular to a material taking system of a plastic product hot-press forming machine.

Background

The plastic product is attached to the mold after hot press molding, and the plastic product needs to be removed from the mold by a material taking system and then transported to a conveyor belt. The execution end of the existing material taking system is provided with a plurality of vacuum chucks so as to realize that plastic products are sucked through the vacuum chucks.

But the shapes of different plastic products are different, thereby putting a limit on the installation position of the vacuum chuck. The position of the vacuum chuck of the existing execution end is usually designed for a certain plastic product, and the position of the vacuum chuck is fixed and cannot be adjusted, so that the vacuum chuck is not suitable for the use of the rest plastic products, and therefore, the vacuum chuck has the defects in use.

Disclosure of Invention

The invention aims to provide a material taking system of a plastic product hot-press forming machine, which has the function of conveniently adjusting the position of a vacuum chuck to adapt to different plastic products for use.

The technical aim of the invention is realized by the following technical scheme: the utility model provides a material taking system of plastic products hot briquetting machine, including being used for setting up the crossbearer above the organism of hot briquetting machine, remove the movable storage of setting on the crossbearer, the power device of setting between crossbearer and movable storage, the longeron that sets up on the movable storage and the extending direction is perpendicular with the crossbearer extending direction, remove the movable seat of setting on the longeron, both ends set up the first actuating cylinder between longeron and movable seat, the vertical arm that sets up at the movable seat and extend along vertical decurrent direction, flexible arm that stretches out and draws back and set up on the vertical arm, both ends set up the second actuating cylinder between vertical arm and flexible arm, the regulating plate of setting at flexible arm lower extreme, a plurality of vacuum chuck that set up on the regulating plate; the adjusting plate is provided with a spiral involute hole, a plurality of vacuum chucks are slidably connected to the spiral involute hole, and a limiting unlocking mechanism for limiting or unlocking the movement of the vacuum chucks is arranged between the vacuum chucks and the adjusting plate.

The invention is further provided with: the vacuum chuck comprises a negative pressure chuck, a joint, a middle pipe and a locking knob, wherein the middle pipe and the locking knob are communicated between the negative pressure chuck and the joint, a limiting ring is arranged at one end, close to the negative pressure chuck, of the middle pipe, an external thread for realizing threaded connection after the locking knob passes through the joint is arranged at the peripheral side, close to the other end, of the negative pressure chuck, of the middle pipe, and the limiting ring and the locking knob are distributed at two sides of the adjusting plate; the limiting unlocking mechanism comprises a limiting sleeve which is arranged on the spiral involute hole in a relative sliding mode and used for enabling one end of the middle pipe, close to the joint, to pass through, and a compression spring which is sleeved on the middle pipe, two ends of the compression spring are abutted between the limiting sleeve and the limiting ring, and the limiting sleeve can be fixed at any position of the adjusting plate in the sliding process.

The invention is further provided with: the utility model discloses a regulating plate, including adjusting plate, first cover body, second cover body, first cover body is provided with the regulation plate is close to the end face of negative pressure sucking disc on being provided with the spiral involute groove that parallels with spiral involute hole, the limit cover includes that the cross-section is the first cover body of "L", the cross-section is the second cover body of falling "L" and with first cover body threaded connection, be provided with the embedding on the first cover body in order to restrict first cover body pivoted spacing axle at spiral involute hole, support respectively after first cover body and the second cover body threaded connection and tightly at the both surfaces of regulating plate, first cover body and second cover body supply the intermediate tube to pass.

The invention is further provided with: the surface of the second sleeve body far away from the first sleeve body is provided with a regular polygon positioning groove, and the locking knob is provided with a positioning block which is used for being embedded in the positioning groove.

The invention is further provided with: the stop collar supports tightly on the terminal surface that the locking knob was kept away from to the regulating plate under compression spring's effect, the embedding is provided with the rubber strip that is close to spiral involute hole inboard on the terminal surface that the regulating plate is close to negative pressure sucking disc, the embedding is provided with the soft magnetic stripe that is close to spiral involute hole outside on the terminal surface that the regulating plate is close to negative pressure sucking disc, be provided with a plurality of iron needles that are used for stabbing in the rubber strip on the stop collar, be provided with the magnet that is used for magnetic adsorption on soft magnetic stripe on the stop collar.

The invention is further provided with: one end of the adjusting plate is rotatably connected to the lower end of the telescopic arm, and a third driving cylinder for driving the adjusting plate to rotate downwards to a vertical state or upwards to a horizontal state is hinged between the telescopic arm and the adjusting plate.

The invention is further provided with: the end face, far away from the negative pressure sucker, of the adjusting plate is detachably provided with a wind guide sleeve through a screw, and the wind guide sleeve is provided with a cooling fan used for blowing air in the wind guide sleeve and cooling plastic parts through a screw involute hole.

The invention is further provided with: the power device comprises a rack arranged on the side face of the transverse frame, a driving motor arranged on the moving bin and a gear which is arranged on an output shaft of the driving motor and meshed with the rack.

In summary, the invention has the following beneficial effects:

1. the adjusting plate is provided with the spiral involute hole, the vacuum chuck is connected to the spiral involute in a sliding manner, at the moment, the vacuum chuck of proper plastic can be selected according to products of different types, and the installation position of the vacuum chuck is adjusted, so that the vacuum chuck is suitable for negative pressure adsorption of different plastic products; meanwhile, the limiting unlocking mechanism can realize limiting or unlocking of the movement of the vacuum chuck, so that the position of the vacuum chuck can be conveniently adjusted;

2. when the position of the vacuum chuck needs to be adjusted, the position of the rear limit sleeve can be fixed by adjusting the position of the rear limit sleeve, so that the position of the vacuum chuck can be adjusted; the vacuum chuck comprises a negative pressure chuck, a joint, a middle pipe and a locking knob, wherein the middle pipe and the locking knob are communicated between the negative pressure chuck and the joint, and a compression spring of a shaft-limiting unlocking mechanism of the vacuum chuck is abutted between a limiting sleeve and a limiting ring, so that when the negative pressure chuck of the vacuum chuck contacts with a plastic product, the deformation of the compression spring can be used for buffering, and the collision is reduced; meanwhile, the initial elasticity of the compression spring can be adjusted by changing the position of the locking knob on the external thread, so that the distance between the negative pressure sucker and the adjusting plate can be adjusted, and the situation that the adsorption point parts of plastic products are on the same plane can be adapted;

3. the limiting sleeve comprises a first sleeve body and a second sleeve body, and the first sleeve body and the second sleeve body are respectively abutted against the two surfaces of the adjusting plate after being in threaded connection, so that the limiting sleeve is fixed, and the problem of limiting the vacuum chuck is solved; meanwhile, a limiting shaft embedded in the spiral involute hole to limit the rotation of the first sleeve body is arranged on the first sleeve body, and the first sleeve body and the second sleeve body are conveniently unscrewed when the second sleeve body is rotated at the moment, so that the position of the limiting sleeve on the spiral involute hole is adjusted;

3. the surface of the second sleeve body, which is far away from the first sleeve body, is provided with the regular polygon positioning groove, the locking knob is provided with the positioning block which is used for being embedded in the positioning groove, at the moment, the second sleeve body can be driven to be screwed or unscrewed when the locking knob is rotated, and the compression spring can be used for realizing the state that the positioning block is kept embedded in the positioning groove, so that the second sleeve body can be conveniently driven to rotate through the locking knob; meanwhile, when the position of the locking knob on the external thread needs to be changed, the positioning block is separated from the positioning groove by pressing the compression spring, so that the locking knob is rotated again to adjust the position;

4. the end face, close to the negative pressure sucker, of the adjusting plate is embedded with a rubber strip, close to the inner side of the spiral involute hole, the end face, close to the negative pressure sucker, of the adjusting plate is embedded with a soft magnetic strip, close to the outer side of the spiral involute hole, the limiting sleeve is provided with a plurality of iron needles used for penetrating into the rubber strip, and the limiting sleeve is provided with a magnet used for being magnetically adsorbed on the soft magnetic strip; when the position of the limit sleeve needs to be adjusted, the magnet is separated from the soft magnetic strip by applying acting force towards the negative pressure sucker to the limit sleeve, so that the iron needle is separated from the rubber strip, and the limit sleeve can be moved at the moment; meanwhile, after the position of the limiting sleeve is adjusted, the iron needle can be inserted into the rubber strip, so that the magnet and the soft magnetic strip are adsorbed to fix the position of the limiting sleeve;

5. one end of the adjusting plate is rotationally connected to the lower end of the telescopic arm, a third driving cylinder for driving the adjusting plate to rotate downwards to a vertical state or to rotate upwards to a horizontal state is hinged between the telescopic arm and the adjusting plate, and at the moment, the angle of the plastic product during transportation can be adjusted according to the shape of the plastic product, so that the maximum end face of the plastic product can be downward as far as possible, and the plastic product can fall off when being conveniently transported to the conveyor belt;

6. the temperature of the plastic product after hot press molding is higher, and at the moment, cold air can pass through the spiral involute hole to realize air cooling of the plastic product through the arrangement of the air guide sleeve and the cooling fan.

Drawings

Fig. 1 is a schematic structural view of embodiment 1;

FIG. 2 is a schematic view of the structure of the conditioning disk and vacuum chuck in example 1;

FIG. 3 is a schematic view of the structure of the vacuum chuck and the limiting unlocking mechanism in embodiment 1 (the spring is not deformed again);

FIG. 4 is a partial sectional view of the adjusting disk, vacuum chuck, and limit unlocking mechanism of embodiment 1;

fig. 5 is a partial sectional view of the structure of the adjusting disk, the vacuum chuck and the limit unlocking mechanism in embodiment 2.

Reference numerals: 1. a cross frame; 2. moving the bin; 3. a power device; 31. a rack; 32. a driving motor; 33. a gear; 4. a longitudinal beam; 5. a movable seat; 6. a first driving cylinder; 7. a vertical arm; 8. a telescoping arm; 9. a second driving cylinder; 10. an adjusting plate; 101. a spiral involute hole; 102. a spiral involute slot; 103. a rubber strip; 104. a soft magnetic stripe; 11. a vacuum chuck; 111. a negative pressure suction cup; 112. a joint; 113. a middle tube; 114. a locking knob; 1141. a positioning block; 115. a limiting ring; 116. an external thread; 12. a limiting unlocking mechanism; 121. a limit sleeve; 1211. a first sleeve; 12111. a limiting shaft; 1212. a second sleeve; 12121. a positioning groove; 1213. an iron needle; 1214. a magnet; 122. a compression spring; 13. a third driving cylinder; 14. an air guiding sleeve; 15. and a cooling fan.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example 1: the utility model provides a taking system of plastic products hot briquetting machine, as shown in fig. 1, including being used for setting up the crossbearer 1 in hot briquetting machine's organism top, remove the movable storage 2 that sets up on crossbearer 1, the power device 3 of setting between crossbearer 1 and movable storage 2, the longeron 4 that sets up on movable storage 2 and extending direction is mutually perpendicular with crossbearer 1 extending direction, remove the movable seat 5 that sets up on longeron 4, both ends set up the first actuating cylinder 6 between longeron 4 and movable seat 5, set up at movable seat 5 and along vertical arm 7 that extends of vertical decurrent direction, flexible setting is at the flexible arm 8 of vertical arm 7, both ends set up the second actuating cylinder 9 between vertical arm 7 and flexible arm 8, the regulating plate 10 of setting at flexible arm 8 lower extreme, a plurality of vacuum chuck 11 of setting on regulating plate 10.

As shown in fig. 1, the power unit 3 includes a rack 31 provided on a side of the traverse frame 1, a driving motor 32 provided on the moving compartment 2, and a gear 33 provided on an output shaft of the driving motor 32 and engaged with the rack 31. One end of the adjusting plate 10 is rotatably connected to the lower end of the telescopic arm 8, and a third driving cylinder 13 for driving the adjusting plate 10 to rotate downwards to a vertical state or upwards to a horizontal state is hinged between the telescopic arm 8 and the adjusting plate 10.

As shown in fig. 1 and 2, a screw involute hole 101 is provided on the adjusting plate 10, a plurality of vacuum chucks 11 are slidably connected to the screw involute hole 101, and a limiting unlocking mechanism 12 for limiting or unlocking the movement of the vacuum chucks 11 is provided between the vacuum chucks 11 and the adjusting plate 10. Meanwhile, an air guide sleeve 14 is detachably arranged on the end face, far away from the negative pressure sucker 111, of the adjusting plate 10, and a cooling fan 15 used for blowing air into the air guide sleeve 14 and cooling plastic parts through the screw involute holes 101 is arranged on the air guide sleeve 14.

As shown in fig. 1 to 4, the vacuum chuck 11 includes a negative pressure chuck 111, a joint 112, an intermediate pipe 113 connected between the negative pressure chuck 111 and the joint 112, and a locking knob 114, wherein a limit ring 115 is disposed at one end of the intermediate pipe 113 near the negative pressure chuck 111, an external thread 116 for realizing threaded connection after the locking knob 114 passes through the joint 112 is disposed at the other end peripheral side of the intermediate pipe 113 near the negative pressure chuck 111, and the limit ring 115 and the locking knob 114 are distributed at two sides of the adjusting plate 10. The limiting unlocking mechanism 12 comprises a limiting sleeve 121 which is arranged on the spiral involute hole 101 in a relative sliding manner and used for enabling one end of the middle pipe 113 close to the joint 112 to pass through, and a compression spring 122 which is sleeved on the middle pipe 113 and two ends of which are abutted between the limiting sleeve 121 and the limiting ring 115, wherein the limiting sleeve 121 can be fixed at any position of the adjusting plate 10 in the sliding process.

As shown in fig. 2 to 4, the end surface of the adjusting plate 10 near the negative pressure suction cup 111 is provided with a spiral involute slot 102 parallel to the spiral involute hole 101, the limiting sleeve 121 comprises a first sleeve body 1211 with an inverted L-shaped section and a second sleeve body 1212 with an inverted L-shaped section in threaded connection with the first sleeve body 1211, the first sleeve body 1211 is provided with a limiting shaft 12111 embedded in the spiral involute hole 101 to limit the rotation of the first sleeve body 1211, the first sleeve body 1211 and the second sleeve body 1212 are respectively abutted against the two surfaces of the adjusting plate 10 after being in threaded connection, and the first sleeve body 1211 and the second sleeve body 1212 are used for the middle pipe 113 to pass through. The surface of the second sleeve 1212, which is far from the first sleeve 1211, is provided with a regular polygon-shaped positioning groove 12121, and the locking knob 114 is provided with a positioning block 1141 for being embedded in the positioning groove 12121.

The implementation effect is as follows: the adjusting plate 10 is provided with the spiral involute hole 101, and the vacuum chuck 11 is connected on the spiral involute in a sliding way, so that the vacuum chuck 11 with proper plastic can be selected according to different types of products, and the installation position of the vacuum chuck 11 is adjusted, so that the vacuum chuck is suitable for negative pressure adsorption of different plastic products; meanwhile, the limiting unlocking mechanism 12 can limit or unlock the movement of the vacuum chuck 11, so that the position of the vacuum chuck 11 can be conveniently adjusted. When the position of the vacuum chuck 11 needs to be adjusted, the position of the rear limit sleeve 121 can be fixed by adjusting the position of the rear limit sleeve, so that the position of the vacuum chuck 11 can be adjusted; the vacuum chuck 11 comprises a negative pressure chuck 111, a joint 112, a middle pipe 113 and a locking knob 114 which are communicated between the negative pressure chuck 111 and the joint 112, and a compression spring 122 of the shaft limiting unlocking mechanism 12 of the vacuum chuck 11 is abutted between a limiting sleeve 121 and a limiting ring 115, so that when the negative pressure chuck 111 of the vacuum chuck 11 is contacted with a plastic product, the deformation of the compression spring 122 can be used for buffering, and the collision is reduced; meanwhile, by changing the position of the locking knob 114 on the external thread 116, the initial elasticity of the compression spring 122 can be adjusted, so that the distance between the negative pressure sucker 111 and the adjusting plate 10 can be adjusted, and the condition that the sucking point parts of plastic products are on the same plane can be adapted.

The limiting sleeve 121 comprises a first sleeve body 1212 and a second sleeve body 1212, and the first sleeve body 1211 and the second sleeve body 1212 are respectively abutted against the two surfaces of the adjusting plate 10 after being in threaded connection, so that the limiting sleeve 121 is fixed, and the problem of limiting the vacuum chuck 11 is solved; meanwhile, the first sleeve 1211 is provided with a limiting shaft 12111 which is embedded in the screw involute hole 101 to limit the rotation of the first sleeve 1211, and at this time, the first sleeve 1211 and the second sleeve 1212 are conveniently unscrewed when the second sleeve 1212 is rotated, so that the position of the limiting sleeve 121 on the screw involute hole 101 is adjusted. The positioning groove 12121 which is in a regular polygon shape is formed in the surface, far from the first sleeve body 1211, of the second sleeve body 1212, the locking knob 114 is provided with the positioning block 1141 which is used for being embedded in the positioning groove 12121, at the moment, the second sleeve body 1212 can be driven to be screwed or unscrewed when the locking knob 114 is rotated, and the positioning block 1141 can be kept in a state of being embedded in the positioning groove 12121 by the arrangement of the compression spring 122, so that the second sleeve body 1212 is driven to rotate by the locking knob 114 conveniently; meanwhile, when the position of the locking knob 114 on the external thread 116 needs to be changed, the positioning block 1141 is first separated from the positioning groove 12121 by pressing the compression spring 122, so that the locking knob 114 is turned again to adjust the position.

The adjusting plate 10 is rotatably connected to the lower end of the telescopic arm 8 at one end, and a third driving cylinder 13 for driving the adjusting plate 10 to rotate downwards to a vertical state or to rotate upwards to a horizontal state is hinged between the telescopic arm 8 and the adjusting plate 10, so that the angle of the plastic product during transportation can be adjusted according to the shape of the plastic product, and the maximum end face of the plastic product can be downward as far as possible, so that the plastic product can fall off when conveniently transported to a conveyor belt. The temperature of the plastic product after hot press molding is higher, and at the moment, cold air can pass through the spiral involute hole 101 to realize air cooling of the plastic product through the arrangement of the air guide sleeve 14 and the cooling fan 15.

Example 2: the material taking system of the plastic product hot-press forming machine is different from the embodiment 1 in that the structure of the limit sleeve 121 is different, as shown in fig. 2 to 5, the limit sleeve 121 is abutted against the end surface of the adjusting plate 10, which is far away from the locking knob 114, under the action of the compression spring 122, the end surface of the adjusting plate 10, which is close to the negative pressure suction disc 111, is embedded with a rubber strip 103, which is close to the inner side of the spiral involute hole 101, the end surface of the adjusting plate 10, which is close to the negative pressure suction disc 111, is embedded with a soft magnetic strip 104, which is close to the outer side of the spiral involute hole 101, the limit sleeve 121 is provided with a plurality of iron pins 1213, which are used for penetrating into the rubber strip 103, and the limit sleeve 121 is provided with a magnet 1214, which is used for being magnetically adsorbed on the soft magnetic strip 104.

The implementation effect is as follows: the end face, close to the negative pressure suction disc 111, of the adjusting plate 10 is embedded with a rubber strip 103, close to the inner side of the spiral involute hole 101, the end face, close to the negative pressure suction disc 111, of the adjusting plate 10 is embedded with a soft magnetic strip 104, close to the outer side of the spiral involute hole 101, a plurality of iron pins 1213 used for penetrating into the rubber strip 103 are arranged on the limiting sleeve 121, and a magnet 1214 used for being magnetically adsorbed on the soft magnetic strip 104 is arranged on the limiting sleeve 121; at this time, when the position of the stop collar 121 needs to be adjusted, the stop collar 121 is applied with a force towards the negative pressure sucker 111, so that the magnet 1214 and the soft magnetic strip 104 are separated, the iron needle 1213 and the rubber strip 103 are separated, and at this time, the stop collar 121 can be moved; meanwhile, after the position of the stop collar 121 is adjusted, the iron needle 1213 can be inserted into the rubber strip 103, so that the magnet 1214 and the soft magnetic strip 104 are attracted to realize the position fixing of the stop collar 121.

The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

Claims

1. A material taking system of a plastic product hot press molding machine, which is characterized in that: the hot press forming machine comprises a transverse frame (1) arranged above a machine body of the hot press forming machine, a movable bin (2) arranged on the transverse frame (1) in a movable manner, a power device (3) arranged between the transverse frame (1) and the movable bin (2), a longitudinal beam (4) arranged on the movable bin (2) and having an extending direction perpendicular to the extending direction of the transverse frame (1), a movable seat (5) arranged on the longitudinal beam (4) in a movable manner, a first driving cylinder (6) with two ends arranged between the longitudinal beam (4) and the movable seat (5), a vertical arm (7) arranged on the movable seat (5) and extending along a vertical downward direction, a telescopic arm (8) arranged on the vertical arm (7) in a telescopic manner, a second driving cylinder (9) with two ends arranged between the vertical arm (7) and the telescopic arm (8), an adjusting plate (10) arranged at the lower end of the telescopic arm (8) and a plurality of vacuum suckers (11) arranged on the adjusting plate (10); the adjusting plate (10) is provided with a spiral involute hole (101), a plurality of vacuum chucks (11) are slidably connected to the spiral involute hole (101), and a limiting unlocking mechanism (12) for limiting or unlocking the movement of the vacuum chucks (11) is arranged between the vacuum chucks (11) and the adjusting plate (10);

the vacuum chuck (11) comprises a negative pressure chuck (111), a connector (112), a middle tube (113) communicated between the negative pressure chuck (111) and the connector (112) and a locking knob (114), wherein a limiting ring (115) is arranged at one end, close to the negative pressure chuck (111), of the middle tube (113), an external thread (116) for the locking knob (114) to pass through the connector (112) and realize threaded connection is arranged at the periphery of the other end, close to the negative pressure chuck (111), of the middle tube (113), and the limiting ring (115) and the locking knob (114) are distributed at two sides of the adjusting plate (10); the limiting unlocking mechanism (12) comprises a limiting sleeve (121) which is arranged on the spiral involute hole (101) in a relative sliding manner and is used for enabling one end of the middle pipe (113) close to the joint (112) to pass through, and a compression spring (122) which is sleeved on the middle pipe (113) and two ends of which are abutted between the limiting sleeve (121) and the limiting ring (115), wherein the limiting sleeve (121) can be fixed at any position of the adjusting plate (10) in the sliding process;

the adjusting plate (10) is provided with a spiral involute groove (102) which is parallel to the spiral involute hole (101) on the end face, the limiting sleeve (121) comprises a first sleeve body (1211) with an L-shaped section and a second sleeve body (1212) with an inverted L-shaped section and in threaded connection with the first sleeve body (1211), the first sleeve body (1211) is provided with a limiting shaft (12111) which is embedded in the spiral involute hole (101) to limit the first sleeve body (1211) to rotate, the first sleeve body (1211) and the second sleeve body (1212) are respectively abutted against the two surfaces of the adjusting plate (10) after being in threaded connection, and the first sleeve body (1211) and the second sleeve body (1212) are used for allowing the middle pipe (113) to pass through.

2. The material taking system of a plastic product hot press molding machine according to claim 1, wherein: the surface of the second sleeve body (1212) far away from the first sleeve body (1211) is provided with a regular polygon positioning groove (12121), and the locking knob (114) is provided with a positioning block (1141) which is used for being embedded in the positioning groove (12121).

3. The material taking system of a plastic product hot press molding machine according to claim 1, wherein: one end of the adjusting plate (10) is rotatably connected to the lower end of the telescopic arm (8), and a third driving cylinder (13) for driving the adjusting plate (10) to rotate downwards to a vertical state or upwards to a horizontal state is hinged between the telescopic arm (8) and the adjusting plate (10).

4. The material taking system of a plastic product hot press molding machine according to claim 1, wherein: the adjusting plate (10) is detachably provided with a wind guiding sleeve (14) through a screw on the end face far away from the negative pressure sucker (111), and the wind guiding sleeve (14) is provided with a cooling fan (15) used for blowing air in the wind guiding sleeve (14) and cooling plastic parts through a spiral involute hole (101).

5. The material taking system of a plastic product hot press molding machine according to claim 1, wherein: the power device (3) comprises a rack (31) arranged on the side face of the transverse frame (1), a driving motor (32) arranged on the movable bin (2), and a gear (33) arranged on an output shaft of the driving motor (32) and meshed with the rack (31).