Hot pressing die for bonding cloth and arc part of plastic part

Abstract

The utility model discloses a hot-pressing die for bonding cloth and an arc part of a plastic part, which comprises a top plate, a bottom plate, a base, a side hot-pressing block, an upper hot-pressing fixing mechanism, an upper hot-pressing elastic mechanism, a sliding wedge, a sliding block and an abutting block, the top plate is connected with the upper hot-pressing fixing mechanism, and the base and the abutting block are both connected with the bottom plate. The sliding wedge is connected with the upper hot-pressing fixing mechanism, the sliding wedge is provided with an inclined part, the upper hot-pressing elastic mechanism is provided with a sliding rail, the sliding block is arranged on the sliding rail in a sliding mode, the sliding block is fixedly connected with the side hot-pressing block, the inclined part is sleeved with the side hot-pressing block in a sliding mode, and the top plate can move up and down relative to the bottom plate. And therefore, the side hot pressing block can be propped against the propping block. The hot-pressing device can be used for effectively hot-pressing connected cloth and the top and the side part of a plastic part, can be better matched with hot-pressing use of an arc part on the plastic part, ensures smooth operation of mold opening and closing, and is high in practicability.

Description

Technical Field

[0001] The utility model relates to the field of mold design, in particular to a hot pressing mold for bonding cloth and an arc portion of a plastic part. Background Art

[0002] Some plastic parts need to be bonded with fabric to achieve a better touch and comfort. Since plastic parts have a certain degree of hot melt, fabric can be bonded to plastic parts through hot pressing. Hot pressing often requires the use of a hot pressing mold.

[0003] However, in actual processing, the structures of different plastic parts vary greatly. Some plastic parts are provided with arc portions, and the arc portions are only bonded to the fabric using conventional hot pressing dies. Since conventional hot pressing dies only rely on the longitudinal relative movement of the front and rear dies to achieve hot pressing, under this method, the fabric is often difficult to fully fit on the side portions of the arc portions, and an undercut is formed on the side portions of the arc portions, affecting the opening and closing of the hot pressing dies. Utility Model Content

[0004] The purpose of the present utility model is to provide a hot pressing die for bonding a cloth and an arc portion of a plastic part, which can solve one or more of the above problems.

[0005] According to one aspect of the present invention, a hot pressing mold for bonding fabric and the arc portion of a plastic part is provided, comprising a top plate, a bottom plate, a base, side hot pressing blocks, an upper hot pressing fixing mechanism, an upper hot pressing elastic mechanism, a sliding wedge, a slider, and a stop block.

[0006] The top plate is connected to the upper hot pressing fixing mechanism, the upper hot pressing elastic mechanism is connected to the upper hot pressing fixing mechanism, and the base and the stop block are both connected to the bottom plate.

[0007] The sliding wedge is connected to the upper hot pressing fixing mechanism, the sliding wedge is provided with an inclined portion, the upper hot pressing elastic mechanism is provided with a slide rail, the slider is slidably provided on the slide rail, the slider is fixedly connected to the side hot pressing block, and the side hot pressing block is slidably sleeved on the inclined portion.

[0008] The top plate can move up and down relative to the bottom plate so that the side hot pressing block can abut against the abutting block.

[0009] The beneficial effects of the present invention are as follows: in the present invention, the fabric and plastic part to be bonded can be placed on a base, and during processing, the top plate can be moved downward relative to the bottom plate so that the upper hot pressing elastic mechanism can perform hot pressing on the top portion of the connected fabric and plastic part, and after the side hot pressing block and the abutting block abut each other, because the upper hot pressing elastic mechanism can have an elastic buffer, the side hot pressing block will no longer move downward with the downward movement of the top plate, and the upper hot pressing fixing mechanism can continue to move downward, so that the inclined portion moves downward, and the downward movement of the inclined portion can drive the side hot pressing block to move laterally, effectively bonding to the side portion of the connected fabric and plastic part to effectively perform hot pressing on the side portion. The present invention can effectively perform hot pressing on the top and side portions of the connected fabric and plastic part, and can better adapt to the hot pressing of the arc portion on the plastic part, ensuring the smooth opening and closing of the mold, and is highly practical.

[0010] In some embodiments, the base is provided with a circular arc portion, the upper hot pressing elastic mechanism is provided with a first arc portion, and the side hot pressing block is provided with a second arc portion. The first arc portion and the second arc portion can be connected and can be assembled into an arc portion that matches the circular arc portion.

[0011] In some embodiments, the upper hot pressing fixing mechanism includes an insulation plate and a fixed plate, the upper hot pressing elastic mechanism includes a spring plate, a spring, an upper hot pressing block and a first heater, the top plate, the insulation plate and the fixed plate are connected in sequence from top to bottom, the spring plate is arranged under the fixed plate and is connected to the insulation plate through a spring, the upper hot pressing block is connected to the spring plate, and the first heater is embedded in the upper hot pressing block.

[0012] In some embodiments, the slide rail is provided on the upper hot pressing block, and a groove is provided on the side of the slide rail. The slider is provided with a protrusion, which is slidably embedded in the groove. The groove and protrusion can serve as a limit for the sliding of the slider, reducing any movement of the slider other than sliding on the slider, thereby improving the reliability of the slider's operation.

[0013] In some embodiments, the present invention further includes a stopper connected to the upper hot-pressing elastic mechanism, the stopper being configured as the end point of the slider's movement. The provision of the stopper can prevent the slider from excessively moving and causing damage to other structures.

[0014] In some embodiments, the present invention further includes a second heater, which is embedded in the side heating block.

[0015] In some embodiments, the present invention further includes a guide sleeve and a guide post, wherein the guide sleeve is mounted on the top plate, the guide post is connected to the bottom plate, and the guide sleeve is slidably mounted on the guide post. The arrangement of the guide sleeve and the guide post can guide the movement of the top plate, thereby improving the reliability of the top plate's movement.

[0016] In some embodiments, the present invention further includes an upper stop support and a lower stop support, wherein the upper stop support is connected to the upper hot-pressing elastic mechanism, and the lower stop support is connected to the bottom plate, and the upper stop support and the lower stop support are arranged relative to each other. By providing the upper stop support and the lower stop support, they can serve as the limit positions of the relative position between the upper hot-pressing elastic mechanism and the bottom plate. When the upper stop support and the lower stop support reach the limit position, the upper stop support and the lower stop support can abut against each other to prevent the continued movement of the upper hot-pressing elastic mechanism from damaging other mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a hot pressing die for bonding a fabric and an arc portion of a plastic part according to an embodiment of the present invention.

[0018] Figure 2 This is a bottom view of a schematic structural diagram of a hot pressing die for bonding a fabric to an arc portion of a plastic part according to an embodiment of the present invention.

[0019] Figure 3 for Figure 2 Cross-sectional view of the hot pressing die at AA of the bonding fabric and the arc portion of the plastic part.

[0020] Figure 4 for Figure 2 Cross-sectional view of the BB portion of the hot pressing mold for bonding the fabric and the arc portion of the plastic part.

[0021] Figure 5 This is a structural diagram of an embodiment of the present invention when a hot pressing mold for bonding a fabric and an arc portion of a plastic part hides a fixing plate.

[0022] In the figure: 1. Top plate, 2. Bottom plate, 3. Base, 4. Side hot pressing block, 501. Upper hot pressing fixing mechanism, 502. Upper hot pressing elastic mechanism, 6. Sliding wedge, 7. Sliding block, 8. Stop block, 9. Stop block, 10. Second heater, 20. Guide sleeve, 30. Guide column, 40. Upper stop support, 50. Lower stop support, 31. Arc portion, 41. Second arc portion, 51. Heat insulation board, 52. Fixing plate, 53. Spring plate, 54. Upper hot pressing block, 55. First heater, 56. Spring, 541. Slide rail, 542. Groove, 543. First arc portion, 61. Oblique portion, 71. Protrusion DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5The utility model is a hot pressing mold for bonding cloth and the arc part of a plastic part, comprising a top plate 1, a bottom plate 2, a base 3, a side hot pressing block 4, an upper hot pressing fixing mechanism 501, an upper hot pressing elastic mechanism 502, a sliding wedge 6, a slider 7 and a stop block 8.

[0025] The upper hot pressing fixing mechanism 501 includes a heat insulating plate 51 and a fixing plate 52. The upper hot pressing elastic mechanism 502 includes a spring plate 53, an upper hot pressing block 54, a first heater 55, and a spring 56. The top plate 1, the heat insulating plate 51, and the fixing plate 52 are fixedly connected in sequence from top to bottom by bolts, and preferably there are two heat insulating plates 51, which are overlapped.

[0026] The spring plate 53 is arranged below the fixed plate 52, and there can be multiple springs 56. A plurality of through holes are correspondingly provided in the heat insulation plate 51 and the fixed plate 52. The multiple springs 56 pass through the multiple through holes one by one, and one end of the spring 56 is fixedly connected to the bottom of the heat insulation plate 51 by a screw, and the other end of the spring 56 is fixedly connected to the top of the spring plate 53 by a screw, so that the spring plate 53 is connected to the heat insulation plate 51 through the spring 56.

[0027] The upper hot pressing block 54 is fixedly connected to the bottom of the spring plate 53 by bolts. The first heater 55 can preferably be an electric heater, and there are multiple first heaters 55, which are all fixedly embedded in the upper hot pressing block 54.

[0028] A slide rail 541 is provided on each side of the upper hot pressing block 54. The two slide rails 541 are arranged parallel to the bottom plate 2. A groove 542 is also provided on the side of the slide rail 541. There are preferably two sliders 7. A protrusion 71 is provided on the side of the slider 7. The two sliders 7 are respectively slidably embedded in the two slide rails 541, that is, the slider 7 can slide along the slide rail 541, and the protrusion 71 of each slider 7 can be slidably embedded in the groove 542 of the slide rail 541 on which the slider 7 is set.

[0029] The hot pressing mold for bonding the fabric and the arc portion of the plastic part also includes a stopper 9, and preferably there are two stoppers 9. The two stoppers 9 are fixedly connected to the two sides of the upper hot pressing block 54 of the upper hot pressing elastic mechanism 502 by bolts. The two stoppers 9 are respectively configured as the movable end points of the two sliders 7 in a one-to-one correspondence, that is, when the slider 7 slides to the end point along the slide rail 541, it can be blocked by the stopper 9 so that the slider 7 cannot slide forward anymore.

[0030] There are preferably two sliding wedges 6 , one end of each of the two sliding wedges 6 is fixedly connected to the fixing plate 52 of the upper hot pressing fixing mechanism 501 by bolts, and the two sliding wedges 6 pass through the two spring plates 53 respectively. An inclined portion 61 is provided on the sliding wedge 6 .

[0031] There are preferably two side hot pressing blocks 4 , the tops of the two side hot pressing blocks 4 are fixedly connected to the two sliders 7 by bolts respectively, and the two side hot pressing blocks 4 are slidably mounted on the inclined portions 61 of the two sliding wedges 6 in a one-to-one correspondence.

[0032] The hot pressing mold for bonding the fabric and the arc portion of the plastic part further includes a second heater 10 , which is preferably an electric heater, and a plurality of second heaters 10 are embedded in each side hot pressing block 4 .

[0033] The base 3 is fixedly connected to the bottom plate 2 by bolts. The base 3 is provided with an arc portion 31, and the bottom of the upper hot pressing block 54 of the upper hot pressing elastic mechanism 502 is provided with a first arc portion 543, and the side of the side hot pressing block 4 is provided with a second arc portion 41. After the upper hot pressing block 54 and the side hot pressing block 4 are both set, the two ends of the first arc portion 543 can respectively abut against the second arc portions 41 of the two side hot pressing blocks 4, and when the first arc portion 543 and the two second arc portions 41 are connected at the edges, they can be spliced ​​into an arc portion that matches the shape of the arc portion 31, and the base 3 can be located below the arc portion, and the arc portion 31 is also located below the arc portion.

[0034] There are preferably two stop blocks 8 , both of which are fixedly connected to the bottom plate 2 by bolts, and the two stop blocks 8 are respectively arranged below the two side hot pressing blocks 4 .

[0035] The hot pressing die for bonding fabric to the arc portion of a plastic part further includes a guide sleeve 20 and a guide post 30. There can be multiple guide sleeves 20 and guide posts 30. All guide sleeves 20 are fixedly embedded in the top plate 1, and all guide posts 30 are fixedly connected to the bottom plate 2. The guide posts 30 are arranged perpendicular to the bottom plate 2. The multiple guide sleeves 20 are slidably mounted on the multiple guide posts 30 in a one-to-one correspondence. This allows the top plate 1 to move up and down relative to the bottom plate 2. After the top plate 1 is lowered a certain distance, the side hot pressing block 4 can abut against the abutment block 8 located below it.

[0036] The hot pressing mold for bonding the fabric to the arc portion of the plastic part further includes an upper stop post 40 and a lower stop post 50. The upper stop post 40 is fixedly connected to the spring plate 53 of the upper hot pressing elastic mechanism 502 by bolts, and the lower stop post 50 is fixedly connected to the base plate 2 by bolts. The upper stop post 40 and the lower stop post 50 are arranged opposite each other and are both arranged parallel to the guide post 30.

[0037] The hot pressing die for bonding the cloth and the arc portion of the plastic part can be used to bond the cloth to the arc portion of the plastic part.

[0038] During use, top plate 1 can be connected to an external power device such as a cylinder, which can drive top plate 1 to move up and down relative to bottom plate 2. The plastic part with the arc portion can be placed on base 3, and the arc portion of the plastic part can be placed on the arc portion 31 of base 3, and the fabric to be bonded can be placed on the arc portion 31.

[0039] When the mold is closed, the power device connected to the top plate 1 drives the top plate 1 to move downward, and the upper hot pressing fixing mechanism 501 and the upper hot pressing elastic mechanism 502 connected to the top plate 1 can also move downward. At the same time, the sliding wedge 6 arranged on the upper hot pressing fixing mechanism 501 and the slider 7 arranged on the upper hot pressing elastic mechanism 502 and the side hot pressing block 4 connected to the slider 7 also move downward.

[0040] The downward movement of the top plate 1 can enable the upper hot pressing block to be pressed on the top of the cloth on the plastic part, and when the side hot pressing block 4 moves down to contact with the stop block 8, the stop block 8 can prevent the side hot pressing block 4 from continuing to move downward. At this time, and as the top plate 1 continues to move downward, the spring 56 can be compressed, that is, the spring plate 53 does not continue to move downward, and the sliding wedge 6 can continue to move downward. The downward movement of the inclined portion 61 on the sliding wedge 6 can generate a component force in the lateral direction on the side hot pressing block 4. Under this force, the slider 7 can slide along the slide rail 541, and the side hot pressing block 4 can move toward the side close to the arc portion 31. The side hot pressing block 4 can be pressed on the side of the cloth on the plastic part, and the first heater 55 and the second heater 10 are started at the same time, thereby hot pressing the plastic part and the cloth, so that the cloth can be fully bonded to the arc portion of the plastic part.

[0041] When the mold is opened, the power device connected to the top plate 1 drives the top plate 1 to move upward. Since the compressed spring 56 can begin to stretch, the current position of the current spring plate 53 can be maintained, and the fixed plate 52 and the sliding wedge 6 also rise accordingly. The upward movement of the inclined portion 61 on the sliding wedge 6 can generate a component force in the lateral direction on the side hot pressing block 4, so that the slider 7 can slide along the slide rail 541, and the side hot pressing block 4 can move toward the side away from the arc portion 31 to avoid the side hot pressing block 4 from being stuck with the arc portion 31 when the mold is opened. As the top plate 1 rises further, after the spring stretches, the spring plate 53 can also move upward with the upward movement of the top plate 1, so that the upper hot pressing block 54 and the side hot pressing block 4 can both move upward to complete the mold opening.

[0042] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A hot pressing die for bonding a fabric to an arc portion of a plastic part, characterized in that: It includes a top plate, a bottom plate, a base, a side hot pressing block, an upper hot pressing fixing mechanism, an upper hot pressing elastic mechanism, a sliding wedge, a slider and a stop block. The top plate is connected to the upper hot pressing fixing mechanism, the upper hot pressing elastic mechanism is connected to the upper hot pressing fixing mechanism, and the base and the stop block are both connected to the bottom plate. The sliding wedge is connected to the upper hot pressing fixing mechanism, the sliding wedge is provided with an inclined portion, the upper hot pressing elastic mechanism is provided with a slide rail, the slider is slidably provided on the slide rail, the slider is fixedly connected to the side hot pressing block, and the side hot pressing block is slidably sleeved on the inclined portion. The top plate can move up and down relative to the bottom plate so that the side hot pressing block can abut against the abutting block.

2. A hot pressing die for bonding a fabric and an arc portion of a plastic part according to claim 1, characterized in that: The base is provided with a circular arc portion, the upper hot pressing elastic mechanism is provided with a first arc portion, and the side hot pressing block is provided with a second arc portion. The first arc portion and the second arc portion can be connected and can be assembled into an arc portion that matches the circular arc portion.

3. The hot pressing die for bonding a fabric and an arc portion of a plastic part according to claim 1, characterized in that: The upper hot pressing fixing mechanism includes a heat insulation plate and a fixed plate, the upper hot pressing elastic mechanism includes a spring plate, a spring, an upper hot pressing block and a first heater, the top plate, the heat insulation plate and the fixed plate are connected in sequence from top to bottom, the spring plate is arranged under the fixed plate and is connected to the top plate through a spring, the upper hot pressing block is connected to the spring plate, and the first heater is embedded in the upper hot pressing block.

4. A hot pressing die for bonding a fabric to an arc portion of a plastic part according to claim 3, characterized in that: The slide rail is arranged on the upper hot pressing block, a groove is arranged on the side of the slide rail, and the slider is provided with a convex block, and the convex block is slidably embedded in the groove.

5. The hot pressing die for bonding a fabric and an arc portion of a plastic part according to claim 1, characterized in that: It comprises a stopper connected to the upper hot-pressing elastic mechanism, and the stopper is configured as the movable end point of the slider.

6. The hot pressing die for bonding a fabric and an arc portion of a plastic part according to claim 1, characterized in that: It includes a second heater, which is embedded in the side heating block.

7. The hot pressing die for bonding a fabric and an arc portion of a plastic part according to claim 1, characterized in that: The utility model comprises a guide sleeve and a guide column. The guide sleeve is installed on the top plate, the guide column is connected to the bottom plate, and the guide sleeve is slidably sleeved on the guide column.

8. The hot pressing die for bonding a fabric and an arc portion of a plastic part according to claim 1, characterized in that: The utility model comprises an upper stop support and a lower stop support, wherein the upper stop support is connected to an upper hot-pressing elastic mechanism, the lower stop support is connected to a bottom plate, and the upper stop support and the lower stop support are arranged opposite to each other.

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