Demolding device for blow molding production of plastic products

Abstract

The utility model relates to the technical field of plastic product demolding, in particular to a demolding device for plastic product blow molding production, which comprises a fixing plate, an electric telescopic rod, a mold body, a demolding structure and a blow molding bottle, the side, close to the inner side, of the supporting plate is fixedly connected with two electric telescopic rods, the two electric telescopic rods are fixedly connected with the outer wall of the mold body, the demolding structure comprises a first supporting rod, the side, close to the inner side, of the supporting plate is fixedly connected with the first supporting rod, and the first supporting rod is slidably connected with a second supporting rod; the second supporting rod is fixedly connected with a limiting plate, the limiting plate is fixedly connected with a sliding rod, and the sliding rod is fixedly connected with a clamping plate. The blow-molded bottle mold is provided with the sliding rod, the clamping plate and the second spring, so that the blow-molded bottle can be separated from the inner wall of the mold body, and manual demolding is not needed.

Description

Technical Field

[0001] The utility model belongs to the technical field of demoulding of plastic products, and in particular relates to a demoulding device for blow molding production of plastic products. Background Art

[0002] Plastic bottles are typically made using a blow molding process. In this process, an injection molding machine injects molten material into a mold to form a tubular parison. The mold is then opened, leaving the parison trapped on a core mold. While still hot, the blow mold is closed and compressed air is blown into the parison, inflating it to the shape of the mold cavity. After cooling, the parison is demolded to produce the finished product. In addition to stretching the preform by supplying pressurized gas, stretching the preform by supplying liquid into the preform (liquid blow molding) is also known.

[0003] However, existing plastic products often need to be manually demolded after blow molding, which is time-consuming and labor-intensive, resulting in reduced demolding efficiency. In addition, existing plastic products often need to be manually placed in a collection box after demolding, causing inconvenience in use. Therefore, there is an urgent need for a demolding device for blow molding of plastic products to solve the above problems. Utility Model Content

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present utility model is to provide a demolding device for blow molding production of plastic products, so as to solve the problem proposed in the above-mentioned background technology that the existing plastic products often need to be manually demolded after blow molding production, which is time-consuming and labor-intensive, resulting in reduced demolding efficiency, and the existing plastic products often need to be manually placed in a collection box after demolding, causing inconvenience in use.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a demolding device for blow molding production of plastic products, comprising a fixed plate, an electric telescopic rod, a mold body, a demolding structure and a blow-molded bottle, the left and right sides of the top of the fixed plate are fixedly connected to a support plate, the side of the support plate close to the inner side is fixedly connected to two electric telescopic rods, the two electric telescopic rods are fixedly connected to the outer wall of the mold body, the demolding structure comprises a support rod 1, the side of the support plate close to the inner side is fixedly connected to the support rod 1, the support rod 1 is slidably connected to the support rod 2, the support rod 2 is fixedly connected to a limit plate, the limit plate is fixedly connected to a sliding rod, and the sliding rod is fixedly connected to a splint.

[0006] Preferably, a discharge hole is provided in the middle of the fixing plate, and the diameter of the discharge hole is larger than the diameter of the blow-molded bottle.

[0007] Preferably, a second slide groove is provided on both the front and rear sides of the support rod one, and both the front and rear sides of the support rod two are fixedly connected to a limiting rod, and the limiting rod is slidably connected to the second slide groove.

[0008] Preferably, a spring 1 is installed in the support rod 1, one end of the spring 1 is against the inner wall of the support rod 1, and the other end of the spring 1 is against the outer wall of the support rod 2.

[0009] Preferably, a clamping groove is provided near the inner side of the mold body, an installation groove is provided on the inner wall of the clamping groove, and a sliding groove 1 is provided on the inner side of the installation groove.

[0010] Preferably, the splint is slidably connected to the card slot, and the sliding rod is slidably connected to the first sliding slot.

[0011] Preferably, a second spring is sleeved on the sliding rod, one end of the second spring abuts against one side of the clamping plate, and the other end of the second spring abuts against the inner wall of the mounting groove.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. A demolding device for blow molding of plastic products is provided with a sliding rod, a splint and a spring. When the blow-molded bottle needs to be demolded, the electric telescopic rod is turned on to drive the mold body to move outward, and the elastic force of the spring pushes the splint to remain stationary, so that the splint always clamps the blow-molded bottle, so that the surface of the blow-molded bottle is separated from the inner wall of the mold body. The blow-molded bottle can be separated from the inner wall of the mold body through the sliding rod, the splint and the spring, so as to prevent the surface of the blow-molded bottle from sticking to the inner wall of the mold body. No manual demolding is required, and the use is more convenient and quick.

[0014] When the mold body moves outward, the splint is driven to move outward by the support rod one, the support rod two and the limit plate, so that the splint no longer holds the blow molded bottle, thereby facilitating the collection of the blow molded bottle and can be automatically reset without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front perspective schematic diagram of the utility model;

[0016] Figure 2 This is a front cross-sectional schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the present invention when in use;

[0018] Figure 4 This is a front cross-sectional view of the mold body of the present invention;

[0019] Figure 5 This is a schematic diagram of the explosion structure of the demoulding structure of the utility model.

[0020] In the figure: 1. Fixed plate; 11. Support plate; 12. Discharge hole; 2. Electric telescopic rod; 3. Mold body; 31. Card slot; 32. Mounting slot; 33. Slide slot 1; 4. Demolding structure; 41. Support rod 1; 42. Slide slot 2; 43. Support rod 2; 44. Limit rod; 45. Spring 1; 46. Limit plate; 47. Sliding rod; 48. Clamp; 49. Spring 2; 5. Blow-molded bottle. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5 The utility model provides an embodiment: a demolding device for blow molding of plastic products, comprising a fixed plate 1, an electric telescopic rod 2, a mold body 3, a demolding structure 4 and a blow molding bottle 5. The left and right sides of the top of the fixed plate 1 are fixedly connected to a support plate 11, the side of the support plate 11 close to the inner side is fixedly connected to two electric telescopic rods 2, and the two electric telescopic rods 2 are fixedly connected to the outer wall of the mold body 3. The demolding structure 4 includes a support rod 1 41, the side of the support plate 11 close to the inner side is fixedly connected to the support rod 1 41, the support rod 1 41 is slidably connected to the support rod 2 43, the support rod 2 43 is fixedly connected to the limit plate 46, the limit plate 46 is fixedly connected to the sliding rod 47, and the sliding rod 47 is fixedly connected to the splint 48.

[0023] Furthermore, a discharge hole 12 is opened in the middle of the fixed plate 1. The diameter of the discharge hole 12 is larger than the diameter of the blow-molded bottle 5. The blow-molded bottle 5 falls downward through the discharge hole 12 and can be placed in a collection box for collection.

[0024] Furthermore, a slide groove 2 42 is provided on the front and rear sides of the support rod 1 41, and a limit rod 44 is fixedly connected to the front and rear sides of the support rod 2 43. The limit rod 44 is slidably connected to the slide groove 2 42. Through the slide groove 2 42 and the limit rod 44, the support rod 2 43 can remain stable when moving, thereby improving stability.

[0025] Furthermore, a spring 45 is installed in the support rod 1 41 , one end of the spring 45 rests on the inner wall of the support rod 1 41 , and the other end of the spring 45 rests on the outer wall of the support rod 2 43 . The limit plate 46 drives the support rod 2 43 to move outward, so that the spring 45 is compressed and contracts, and the support rod 2 43 contracts into the support rod 1 41 .

[0026] Furthermore, a clamping groove 31 is formed near the inner side of the mold body 3 , a mounting groove 32 is formed on the inner wall of the clamping groove 31 , and a sliding groove 33 is formed on the inner side of the mounting groove 32 .

[0027] Furthermore, the clamping plate 48 is slidably connected to the card slot 31 , and the sliding rod 47 is slidably connected to the sliding slot 1 33 .

[0028] Furthermore, a second spring 49 is mounted on the sliding rod 47, one end of the second spring 49 rests on one side of the clamping plate 48, and the other end of the second spring 49 rests on the inner wall of the mounting groove 32. When the mold body 3 moves outward, the elastic force of the second spring 49 pushes the clamping plate 48 to remain stationary, so that the clamping plate 48 always clamps the blow-molded bottle 5, so that the surface of the blow-molded bottle 5 is separated from the inner wall of the mold body 3.

[0029] Working principle:

[0030] When in use, when the blow-molded bottle 5 needs to be demoulded, the electric telescopic rod 2 is turned on, so that the electric telescopic rod 2 drives the mold body 3 to move outward, and the elastic force of the second spring 49 pushes the clamping plate 48 to remain stationary, so that the clamping plate 48 always clamps the blow-molded bottle 5, so that the surface of the blow-molded bottle 5 is separated from the inner wall of the mold body 3, and the blow-molded bottle 5 can be separated from the inner wall of the mold body 3 by the sliding rod 47, the clamping plate 48 and the second spring 49, so that the blow-molded bottle 5 can be separated from the inner wall of the mold body 3, preventing the surface of the blow-molded bottle 5 from adhering to the inner wall of the mold body 3, without manual demoulding, and more convenient and quick to use. When the blow-molded bottles 5 need to be collected, the electric telescopic rod 2 is turned on, so that the electric telescopic rod 2 drives the mold body 3 to move outward. When the outer wall of the mold body 3 contacts the limit plate 46, the mold body 3 drives the limit plate 46 to move outward, and the limit plate 46 drives the second support rod 43 to move outward, so that the spring 1 45 is under pressure and contracts, so that the second support rod 43 contracts into the first support rod 41. At this time, the splint 48 no longer clamps the blow-molded bottle 5, and the blow-molded bottle 5 falls downward through the discharge hole 12 and can be placed in the collection box for collection. The electric telescopic rod 2 is turned on, so that the electric telescopic rod 2 drives the mold body 3 to move inward, so that the two mold bodies 3 are spliced together. At this time, the spring 2 49 pushes the splint 48 to move toward the middle to achieve reset. When the mold body 3 moves outward through the support rod 1 41, the support rod 2 43 and the limit plate 46, the splint 48 is driven to move outward, so that the splint 48 no longer clamps the blow-molded bottle 5, thereby facilitating the collection of the blow-molded bottle 5 and can be automatically reset without manual operation, making the operation more convenient and quick.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A demoulding device for blow molding of plastic products, comprising a fixed plate (1), an electric telescopic rod (2), a mold body (3), a demoulding structure (4) and a blow molding bottle (5), characterized in that: The left and right sides of the top of the fixed plate (1) are fixedly connected to the support plate (11), the side of the support plate (11) close to the inner side is fixedly connected to two electric telescopic rods (2), and the two electric telescopic rods (2) are fixedly connected to the outer wall of the mold body (3). The demoulding structure (4) includes a support rod 1 (41), the side of the support plate (11) close to the inner side is fixedly connected to the support rod 1 (41), the support rod 1 (41) is slidably connected to the support rod 2 (43), the support rod 2 (43) is fixedly connected to the limit plate (46), the limit plate (46) is fixedly connected to the sliding rod (47), and the sliding rod (47) is fixedly connected to the clamping plate (48).

2. A demoulding device for blow molding of plastic products according to claim 1, characterized in that: A discharge hole (12) is provided in the middle of the fixed plate (1), and the diameter of the discharge hole (12) is larger than the diameter of the blow-molded bottle (5).

3. The demoulding device for blow molding of plastic products according to claim 1, characterized in that: The front and rear sides of the support rod 1 (41) are both provided with a second slide groove (42), the front and rear sides of the support rod 2 (43) are both fixedly connected to a limiting rod (44), and the limiting rod (44) is slidably connected to the second slide groove (42).

4. A demoulding device for blow molding of plastic products according to claim 1, characterized in that: A spring (45) is installed in the support rod (41), one end of the spring (45) is against the inner wall of the support rod (41), and the other end of the spring (45) is against the outer wall of the support rod (43).

5. The demoulding device for blow molding of plastic products according to claim 1, characterized in that: The mold body (3) is provided with a clamping groove (31) near the inner side, the inner wall of the clamping groove (31) is provided with a mounting groove (32), and the inner side of the mounting groove (32) is provided with a sliding groove (33).

6. A demoulding device for blow molding of plastic products according to claim 1, characterized in that: The clamping plate (48) is slidably connected to the clamping slot (31), and the sliding rod (47) is slidably connected to the sliding slot 1 (33).

7. The demoulding device for blow molding of plastic products according to claim 1, characterized in that: The sliding rod (47) is sleeved with a second spring (49), one end of the second spring (49) abuts against one side of the clamping plate (48), and the other end of the second spring (49) abuts against the inner wall of the mounting groove (32).

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