Plastic flower blow molding mold

Abstract

The utility model relates to the technical field of molds, and discloses a plastic flower blow molding mold which comprises a base, and a fixed mold and a movable mold are arranged on the base; a power mechanism is mounted on the base; the output end of the power mechanism is in transmission connection with the movable mold; a model groove corresponding to the shape of a manufactured plastic flower is formed in one side, close to the movable mold, of the fixed mold; a mounting groove is formed in the fixed mold, a first-stage demolding mechanism and a second-stage demolding mechanism are arranged in the mounting groove, the output end of the first-stage demolding mechanism penetrates into a model groove of the fixed mold in a sliding mode and abuts against and is matched with a plastic mold blank in a contact mode, and the second-stage demolding mechanism is in transmission connection with the first-stage demolding mechanism; and the output end of the second-stage demolding mechanism penetrates into the model groove of the fixed mold in a sliding manner and is matched with the plastic mold blank in a contact manner in an abutting manner. The two-stage demolding mechanism is arranged, when the first-stage demolding mechanism cannot push the formed plastic flower out of the grinding tool, the plastic flower is completely pushed out of the grinding tool through secondary demolding of the second-stage demolding mechanism, it is ensured that mold clamping cannot occur, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a plastic flower blow molding mold. Background Art

[0002] Plastic flowers are artificial flowers usually made of silk, crepe paper, polyester, plastic, crystal, etc., as well as dried flowers made from fresh flowers. They are generally called artificial flowers or simulated flowers in the industry. Plastic flowers can be made through blow molding. Blow molding is a plastic processing method, also known as hollow blow molding. The tubular plastic preform obtained by extrusion or injection molding of thermoplastic resin is placed in a split mold while hot. After the mold is closed, compressed air is immediately introduced into the preform to inflate the plastic preform and make it close to the inner wall of the mold. After cooling and demolding, various hollow products are obtained.

[0003] The plastic barrel blow molding mold described in the publication number CN218701185U includes a base, a fixed mold is fixedly installed on the top of the base, a movable mold is slidably installed on the top of the base, and the movable mold is adapted to the fixed mold, a driving box is fixedly installed on the top of the base, a pushing mechanism is provided on the driving box, and the pushing mechanism is connected to the movable mold, a chamber is opened on the fixed mold, a movable plate is slidably installed in the chamber, a plurality of compression springs are fixedly installed on one side of the movable plate, and one end of the compression spring is fixedly connected to an inner wall of one side of the chamber, an ejection mechanism is provided on the movable plate, and the ejection mechanism includes a receiving groove, a push plate and a push rod, and the receiving groove is opened on the inner wall of the molding chamber of the fixed mold.

[0004] The disclosure discloses a plastic bottle blow molding mold as described in the publication number CN216330006U, which comprises a base, wherein the base is provided with two molds and a movable assembly, the two molds are provided with a mold hole in common, the two molds are provided with a cooling assembly, and the two molds are provided with a demolding assembly; the demolding assembly comprises a top block, a connecting plate, two push rods and two springs, the mold is provided with a slide groove, the top block is provided with an arc surface, the mold is provided with a first through hole, the push rod is slidably connected to the first through hole, the push rod is connected to the connecting plate, and the spring is located between the connecting plate and the mold; the two molds are respectively provided with a first push rod and a second push rod.

[0005] Based on the above technical features, the problem that arises is that in the prior art, the movement range of the ejector pin is limited during the demolding process. When the molded plastic product is too tightly attached to the mold or the center of gravity of the molded plastic product is too close to the inside of the mold, the ejector pin cannot completely demold the plastic product from the mold, resulting in mold jamming, which affects the overall production efficiency.

[0006] Therefore, it is necessary to solve the above problems through plastic flower blow molding molds. Utility Model Content

[0007] The purpose of the utility model is to provide a plastic flower blow molding mold to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic flower blow molding mold, comprising a base, on which a fixed mold is fixedly arranged and a movable mold is slidably arranged; a power mechanism is fixedly installed on the base, and the output end of the power mechanism is transmission-connected with the movable mold so that the movable mold slides close to or away from the fixed mold; mold holes are provided on the fixed mold and the movable mold, and a mold groove corresponding to the shape of the plastic flower to be made is provided on the adjacent side, and the mold hole is connected with the mold groove; an installation groove is provided inside the fixed mold, and a primary demolding mechanism and a secondary demolding mechanism are arranged in the installation groove, the output end of the primary demolding mechanism slides into the mold groove of the fixed mold and contacts and abuts with the plastic preform, and the secondary demolding mechanism is transmission-connected with the primary demolding mechanism, and the output end of the secondary demolding mechanism slides into the mold groove of the fixed mold and contacts and abuts with the plastic preform.

[0009] Preferably, the first-stage demolding mechanism includes a first-stage power unit, a second movable plate and a first push rod as an output end; the second movable plate is limitedly slidably fitted in the mounting groove of the fixed mold, and the first-stage power unit is transmission-connected to the second movable plate to drive the second movable plate to slide closer to or away from the model groove in the fixed mold; the first push rod is fixedly connected to the second movable plate, and the first push rod slides into the model groove of the fixed mold to engage with the plastic preform in a contacting manner.

[0010] Preferably, the primary power unit includes a sliding rod and a first spring, the sliding rod is fixedly connected to the second movable plate, the end of the sliding rod away from the second movable plate slides out of the fixed mold and cooperates with the movable mold transmission to make the second movable plate slide away from the model groove in the fixed mold; the first spring is located between the second movable plate and the inner wall of the fixed mold away from the movable mold, one end of the first spring is fixedly connected to the second movable plate, and the other end is fixedly connected to the inner wall of the fixed mold away from the movable mold, for driving the second movable plate to slide close to the model groove in the fixed mold.

[0011] Preferably, the primary power unit includes a second hydraulic rod, which is fixedly mounted on the base; the output end of the second hydraulic rod slides into the fixed mold and is fixedly connected to the second movable plate in the fixed mold, so as to drive the second movable plate to slide closer to or away from the model groove in the fixed mold.

[0012] Preferably, the secondary demolding mechanism includes a secondary power unit, a first movable plate and a second push rod as an output end; the first movable plate is limitedly slidably engaged in the mounting groove of the fixed mold, and the secondary power unit is transmission-coordinated with both the second movable plate and the first movable plate to drive the first movable plate to slide closer to or away from the model groove in the fixed mold; the second push rod is fixedly connected to the first movable plate, and the second push rod slides into the model groove of the fixed mold to contact and abut against the material blank.

[0013] Preferably, the secondary power unit includes a connecting rod, a limit block and a second spring, the second spring is located between the first movable plate and the second movable plate, one end of the second spring is fixedly connected to the first movable plate, and the other end is fixedly connected to the second movable plate, for driving the first movable plate to slide away from the model groove in the fixed mold; the limit block is fixedly arranged on the inner wall of the fixed mold; the connecting rod is rotatably connected to the second movable plate, one end of the connecting rod is in contact with the limit block, and the other end is in contact with the first movable plate for transmission, for pushing the first movable plate to slide close to the model groove in the fixed mold.

[0014] Preferably, a limiting column is fixedly provided on the first movable plate, the second spring is sleeved on the limiting column, and the limiting column is in limiting cooperation with the first movable plate.

[0015] Preferably, a support shaft is fixedly arranged on the second movable plate, the support shaft passes through the connecting rod and is rotatably connected to the connecting rod; a torsion spring is sleeved on the support shaft, one end of the torsion spring is fixedly connected to the connecting rod, and the other end is fixedly connected to the second movable plate.

[0016] Preferably, a baffle is fixedly provided on the second movable plate, and the baffle is limitedly matched with the connecting rod.

[0017] Preferably, the power mechanism comprises a first hydraulic rod, the first hydraulic rod is fixedly mounted on the base, and the output shaft of the first hydraulic rod is fixedly connected to the movable mold.

[0018] Technical effects and advantages of the utility model:

[0019] First, the utility model is provided with a two-stage demoulding mechanism. When the first-stage demoulding mechanism cannot completely push the molded plastic flower out of the mold, the second-stage demoulding can be used to completely push the plastic flower out of the mold, thereby ensuring that the mold will not be stuck and improving production efficiency.

[0020] Second, the primary demoulding mechanism and the secondary demoulding mechanism of the utility model are connected by transmission, and no additional power source is required, which reduces manufacturing costs and improves economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the first embodiment of the utility model;

[0022] Figure 2 This is a partial three-dimensional schematic diagram of the first embodiment of the utility model;

[0023] Figure 3 This is a three-dimensional schematic diagram of a certain model of an embodiment of the utility model;

[0024] Figure 4 This is a schematic top view of a certain model of an embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of a half-section of a certain mold of an embodiment of the utility model;

[0026] Figure 6 This is a partial schematic diagram of a two-pole demoulding mechanism in Embodiment 1 of the utility model;

[0027] Figure 7 This is a schematic diagram of a first-level demoulding mechanism in Example 1 of the utility model;

[0028] Figure 8 This is a schematic diagram of the three-dimensional structure of the second embodiment of the utility model;

[0029] Fig. 9 It is a semi-sectional schematic diagram of the second embodiment of the present utility model.

[0030] In the figure: 1. base; 2. fixed mold; 3. sliding rod; 4. movable mold; 5. first hydraulic rod; 6. first push rod; 7. second push rod; 8. first movable plate; 9. second movable plate; 10. first spring; 11. connecting rod; 12. limit block; 13. baffle; 14. second spring; 15. limit column; 16. second hydraulic rod; 17. guide column; 18. mold hole. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Embodiment 1

[0032] like Figure 1-Figure 7As shown, the utility model provides a plastic flower blow molding mold, including a base 1. The base 1 is arranged horizontally and a fixed mold 2 is welded on the top. The right end of the fixed mold 2 is provided with a mold hole 18 and a mold groove matching the shape of the plastic flower. The mold hole 18 is located directly above the mold groove and is connected to the mold groove. The mold hole 18 passes through the fixed mold 2 vertically upward. The upper limit sliding of the base 1 is matched with the movable mold 4. The movable mold 4 is located on the right side of the fixed mold 2. The left end of the movable mold 4, that is, the end close to the fixed mold 2, is provided with another mold hole 18 and another mold groove matching the shape of the plastic flower. When the two mold holes 18 correspond to each other and butt joint, a complete cylindrical hole is formed. When the two model grooves correspond to each other and butt joint, a complete split model groove matching the shape of the plastic flower is formed.

[0033] A vertical plate is welded to the right end of the base 1, and a power mechanism is installed on the vertical plate. The output end of the power mechanism is fixedly connected to the movable mold 4, and is used to drive the movable mold 4 to slide closer to or away from the fixed mold 2. The power mechanism includes a horizontally placed first hydraulic rod 5, and the number of the first hydraulic rod 5 is two. The two first hydraulic rods 5 are parallel to each other, one above and one below, and the output ends are fixedly connected to the movable mold 4 horizontally to the left.

[0034] A mounting groove is cut in the fixed mold 2, and a first-level demoulding mechanism is installed in the mounting groove. The output end of the first-level demoulding mechanism penetrates into the model groove in the fixed mold 2 and contacts and abuts with the plastic preform in the model groove. The first-level demoulding mechanism includes a first-level power unit, a second vertical movable plate 9, and a first push rod 6 as an output end. The second movable plate 9 is limitedly slidably fitted in the mounting groove, and the second movable plate 9 can slide horizontally left and right in the mounting groove. The first-level power unit is transmission-connected with the second movable plate 9, and is used to push the second movable plate 9 to slide close to or away from the model groove in the fixed mold 2. The first push rod 6 is welded and fixed to the right end of the second movable plate 9 and horizontally passes through the shell of the fixed mold 2 to the right and penetrates into the model groove of the fixed mold 2. The first push rod 6 contacts and abuts with the plastic preform in the model groove, and is used to push the plastic preform out of the model groove.

[0035] The primary power unit includes a horizontal slide bar 3 and a horizontal first spring 10. There are four slide bars 3, and all of them are fixedly connected to the second movable plate 9. The four slide bars 3 are arranged in a rectangular array at the four corners of the second movable plate 9. The four slide bars 3 slide horizontally to the right through the fixed mold 2 and cooperate with the movable mold 4 to push the second movable plate 9 to slide to the left away from the model groove in the fixed mold 2. There are four first springs 10, and all of them are located between the second movable plate 9 and the left inner wall of the fixed mold 2. One end of the same first spring 10 is fixedly connected to the left inner wall of the fixed mold 2, and the other end is fixedly connected to the second movable plate 9, and is used to push the second movable plate 9 to slide to the right close to the model groove in the fixed mold 2.

[0036] The secondary demoulding mechanism is assembled in the installation groove, and the secondary demoulding mechanism is transmission-connected with the primary demoulding mechanism. The output end of the secondary demoulding mechanism penetrates into the model groove in the fixed mold 2 and contacts and abuts with the plastic preform in the model groove. The secondary demoulding mechanism includes a secondary power unit, a vertical first movable plate 8, and a second push rod 7 as an output end. The first movable plate 8 is located on the right side of the second movable plate 9, and the first movable plate 8 is limitedly slidably matched in the installation groove of the fixed mold 2, and the first movable plate 8 can slide horizontally left and right in the installation groove. The secondary power unit is transmission-connected with the second movable plate 9 and the first movable plate 8, and is used to push the first movable plate 8 to slide close to or away from the model groove in the fixed mold 2. There are three second push rods 7, and the three second push rods 7 are fixedly connected to the first movable plate 8. The three second push rods 7 are evenly distributed in a circular array with the central axis of the first push rod 6 as the center. The three second ejector rods 7 slide horizontally to the right through the shell of the fixed mold 2 and are inserted into the mold groove in the fixed mold 2. Each second ejector rod 7 is in contact with the plastic preform in the mold groove of the fixed mold 2 to be used for secondary ejection of the plastic preform from the mold groove.

[0037] The secondary power unit includes a connecting rod 11, a limit block 12 and a second spring 14. There are four second springs 14, and the four second springs 14 are evenly distributed between the first movable plate 8 and the second movable plate 9 in a rectangular array. One end of the same second spring 14 is fixedly connected to the first movable plate 8, and the other end is fixedly connected to the second movable plate 9, which is used to drive the first movable plate 8 to slide away from the mold groove in the fixed mold 2. Four horizontal limit columns 15 are fixedly set at the right end of the second movable plate 9. The four limit columns 15 correspond to the four second springs 14 one by one, and each second spring 14 is sleeved on the limit column 15. The four limit columns 15 are all limited with the first movable plate 8.

[0038] There are two connecting rods 11 and two limit blocks 12, one is welded and fixed on the front inner wall of the fixed mold 2, and the other is welded and fixed on the rear inner wall of the fixed mold 2. Both connecting rods 11 are V-shaped, and a support block is integrally welded to the right end of the second movable plate 9. Two vertical support shafts are welded on the top of the support block, and the two support shafts are symmetrically arranged one in front and one behind. The two connecting rods 11 correspond to the two support shafts one by one, and each support shaft vertically passes through the corner of the corresponding connecting rod 11 and is rotatably connected to the corresponding connecting rod 11. A torsion spring is sleeved on each support shaft. One end of the same torsion spring is fixedly connected to the support shaft, and the other end is fixedly connected to the connecting rod 11 rotatably connected to the support shaft. The two connecting rods 11 correspond one-to-one to the two limit blocks 12. One end of the same connecting rod 11 is in contact with the corresponding limit block 12 to drive the connecting rod 11 to rotate, and the other end is in transmission cooperation with the first movable plate 8 to push the first movable plate 8 to slide close to the model groove in the fixed mold 2.

[0039] A vertical baffle 13 is welded and fixed on the top of the support block, and the baffle 13 is limitedly matched with the two connecting rods 11 to prevent the two connecting rods 11 from rotating too far.

[0040] Working principle of embodiment 1:

[0041] When the plastic flower is blow-molded, the two first hydraulic rods 5 are started at the same time, the output ends of the two first hydraulic rods 5 extend synchronously and drive the movable mold 4 horizontally to the left close to the fixed mold 2, the movable mold 4 will push the slide bar 3 to slide to the left, and the slide bar 3 will push the second movable plate 9 to slide to the left. When the second movable plate 9 moves to the left, the first spring 10 is compressed. At the same time, the second movable plate 9 drives the connecting rod 11 to gradually disengage from the corresponding limit block 12. Under the action of the torsion spring elastic force, the connecting rod 11 rotates and gradually disengages from the first movable plate 8, and finally abuts against the baffle 13 to form a limit fit.

[0042] During this process, the first movable plate 8 slides away from the mold groove of the fixed mold 2 under the pulling force of the second spring 14 until the first movable plate 8 abuts against the limiting column 15 to form a limiting fit. At this time, the right end face of the first push rod 6 and the right end face of the second push rod 7 are in the same vertical plane. When the fixed mold 2 contacts the movable mold 4, the two mold holes 18 are connected to form a complete cylindrical hole, and the two mold grooves are connected to form a complete split mold groove that matches the shape of the plastic flower. At the same time, the right end faces of the first push rod 6 and the second push rod 7 are both coplanar with the left inner wall of the mold groove of the fixed mold 2.

[0043] At this time, the two first hydraulic rods 5 are shut down to carry out the blow molding operation.

[0044] After the blow molding is completed, the two first hydraulic rods 5 are simultaneously started in the opposite direction, and the two first hydraulic rods 5 simultaneously drive the movable mold 4 to slide to the right away from the fixed mold 2. In this process, the first spring 10 extends and pushes the second movable plate 9 to slide to the right close to the mold groove in the fixed mold 2.

[0045] During the movement of the second movable plate 9, the first movable plate 8 is first driven to slide synchronously, and the second movable plate 9 drives the first push rod 6 to slide synchronously to the right, and the first movable plate 8 drives the second push rod 7 to slide synchronously to the right, and the first push rod 6 and the second push rod 7 eject the plastic flower from the fixed mold 2 for the first time. As the second movable plate 9 continues to slide to the right and gradually approaches the mold groove in the fixed mold 2, one end of the connecting rod 11 contacts the corresponding limit block 12, and the connecting rod 11 rotates. At the same time, the other end of the connecting rod 11 gradually rotates to approach the first movable plate 8 and pushes the first movable plate 8 to slide close to the mold groove in the fixed mold 2. In this process, the first movable plate 8 moves relative to the second movable plate 9, and the first movable plate 8 overcomes the pulling force of the second spring 14 and slides to the right. The first movable plate 8 drives the second push rod 7 to move to the right, and the second push rod 7 pushes the plastic flower and ejects the plastic flower from the fixed mold 2 for the second time.

[0046] When the plastic flower is completely ejected from the fixed mold 2, the first movable plate 8 and the second movable plate 9 stop sliding, the torsion spring is twisted, and the second spring 14 is extended. At the same time, the first hydraulic rod 5 is closed. Embodiment 2

[0047] like Figures 8 to 9 The plastic flower blow molding mold shown in this embodiment is different from the first embodiment in that the primary power unit includes a second hydraulic rod 16. Another vertical plate is welded to the left end of the base 1, and the second hydraulic rod 16 is bolted to the vertical plate. The output end of the second hydraulic rod 16 slides horizontally to the right to penetrate into the fixed mold 2 and is fixedly connected to the second movable plate 9.

[0048] Four guide pillars 17 are welded and fixed on the left side wall of the movable mold 4. The four guide pillars 17 are distributed in a rectangular array at the four corners of the side wall. Four guide grooves are provided at the right end of the fixed mold 2. The four guide grooves correspond to the four guide pillars 17 one by one. Each guide pillar 17 slides horizontally to the left and is inserted into the guide groove and plugged into the guide groove.

[0049] Working principle of the second embodiment:

[0050] The difference between this working principle and the working principle of the first embodiment is that the working process of the first-stage power unit is different. Now only the working process of the first-stage power unit is described in detail, and the other working processes are the same as the principles of the first embodiment.

[0051] When blow molding is required, the output end of the second hydraulic rod 16 retracts and drives the second movable plate 9 to slide leftward.

[0052] When demoulding is required, the output end of the second hydraulic rod 16 extends out and drives the second movable plate 9 to slide to the right.

[0053] When the right end surface of the fixed mold 2 contacts the left end surface of the movable mold 4, the guide pin 17 on the movable mold 4 is inserted into the guide groove to form a plug-in fit.

[0054] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plastic flower blow molding mold, comprising a base (1), characterized in that: The base (1) is provided with a fixed mold (2) and a movable mold (4) which is slidably arranged on the base; a power mechanism is fixedly arranged on the base (1), and an output end of the power mechanism is transmission-connected with the movable mold (4) so ​​that the movable mold (4) slides toward or away from the fixed mold (2); mold holes (18) are provided on the fixed mold (2) and the movable mold (4), and a mold groove corresponding to the shape of the plastic flower to be manufactured is provided on the adjacent side, and the mold hole (18) is communicated with the mold groove; an installation groove is provided inside the fixed mold (2), and a primary demoulding mechanism and a secondary demoulding mechanism are arranged in the installation groove, the output end of the primary demoulding mechanism slides into the mold groove of the fixed mold (2) and contacts with the plastic preform, and the secondary demoulding mechanism is transmission-connected with the primary demoulding mechanism, and the output end of the secondary demoulding mechanism slides into the mold groove of the fixed mold (2) and contacts with the plastic preform.

2. The plastic flower blow molding mold according to claim 1, characterized in that: The primary demoulding mechanism comprises a primary power unit, a second movable plate (9) and a first push rod (6) as an output end; the second movable plate (9) is limitedly slidably engaged in a mounting groove of the fixed mold (2), the primary power unit is transmission-connected to the second movable plate (9) and is used to drive the second movable plate (9) to slide towards or away from a mold groove in the fixed mold (2); the first push rod (6) is fixedly connected to the second movable plate (9), and the first push rod (6) slides into the mold groove of the fixed mold (2) and is in contact-type abutment engagement with the plastic preform.

3. The plastic flower blow molding mold according to claim 2, characterized in that: The primary power unit comprises a slide bar (3) and a first spring (10), wherein the slide bar (3) is fixedly connected to the second movable plate (9), and the end of the slide bar (3) away from the second movable plate (9) slides out of the fixed mold (2) and cooperates with the movable mold (4) in transmission, so that the second movable plate (9) slides away from the model groove in the fixed mold (2); the first spring (10) is located between the second movable plate (9) and the inner wall of the fixed mold (2) away from the movable mold (4), one end of the first spring (10) is fixedly connected to the second movable plate (9), and the other end is fixedly connected to the inner wall of the fixed mold (2) away from the movable mold (4), so as to drive the second movable plate (9) to slide close to the model groove in the fixed mold (2).

4. The plastic flower blow molding mold according to claim 2, characterized in that: The primary power unit comprises a second hydraulic rod (16), wherein the second hydraulic rod (16) is fixedly mounted on the base (1); an output end of the second hydraulic rod (16) slides into the fixed mold (2) and is fixedly connected to a second movable plate (9) in the fixed mold (2), so as to drive the second movable plate (9) to slide towards or away from a mold groove in the fixed mold (2).

5. The plastic flower blow molding mold according to claim 2, characterized in that: The secondary demoulding mechanism comprises a secondary power unit, a first movable plate (8) and a second ejector rod (7) as an output end; the first movable plate (8) is limitedly slidably engaged in a mounting groove of the fixed mold (2); the secondary power unit is transmission-engaged with both the second movable plate (9) and the first movable plate (8) for driving the first movable plate (8) to slide towards or away from the mold groove in the fixed mold (2); the second ejector rod (7) is fixedly connected to the first movable plate (8); the second ejector rod (7) slides into the mold groove of the fixed mold (2) and contacts and abuts against the blank.

6. The plastic flower blow molding mold according to claim 5, characterized in that: The secondary power unit comprises a connecting rod (11), a limit block (12) and a second spring (14); the second spring (14) is located between the first movable plate (8) and the second movable plate (9); one end of the second spring (14) is fixedly connected to the first movable plate (8), and the other end is fixedly connected to the second movable plate (9), and is used to drive the first movable plate (8) to slide away from the model groove in the fixed mold (2); the limit block (12) is fixedly arranged on the inner wall of the fixed mold (2); the connecting rod (11) is rotatably connected to the second movable plate (9); one end of the connecting rod (11) is in contact-abutting engagement with the limit block (12), and the other end is in contact-transmission engagement with the first movable plate (8), and is used to push the first movable plate (8) to slide close to the model groove in the fixed mold (2).

7. The plastic flower blow molding mold according to claim 6, characterized in that: A limiting column (15) is fixedly arranged on the first movable plate (8), the second spring (14) is sleeved on the limiting column (15), and the limiting column (15) is in limiting cooperation with the first movable plate (8).

8. The plastic flower blow molding mold according to claim 6, characterized in that: A support shaft is fixedly arranged on the second movable plate (9), the support shaft passes through the connecting rod (11) and is rotatably connected to the connecting rod (11); a torsion spring is sleeved on the support shaft, one end of the torsion spring is fixedly connected to the connecting rod (11), and the other end is fixedly connected to the second movable plate (9).

9. The plastic flower blow molding mold according to claim 6, characterized in that: A baffle (13) is fixedly disposed on the second movable plate (9), and the baffle (13) is limitedly matched with the connecting rod (11).

10. The plastic flower blow molding mold according to claim 1, characterized in that: The power mechanism comprises a first hydraulic rod (5), the first hydraulic rod (5) being fixedly mounted on the base (1), and the output shaft of the first hydraulic rod (5) being fixedly connected to the movable mold (4).

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