Rotational molding mold convenient to assemble and disassemble

Abstract

The utility model discloses a rotational molding mold convenient to assemble and disassemble, and relates to the field of rotational molding machining technologies, the rotational molding mold comprises an upper mold shell, a lower mold shell and a locking assembly, and flanges for connection are arranged on the edges of the upper mold shell and the lower mold shell; the locking assembly comprises a sleeve, a sliding rod and an elastic piece. The sleeve is fixed to the flange of the upper die shell and located on the side, away from the lower die shell, of the flange. The sliding rod is slidably installed in the sleeve, a T-shaped clamping connector is arranged at the end, close to the flange, of the sliding rod and larger than the outline of the end of the sleeve, the elastic piece is arranged between the sliding rod and the sleeve to enable the T-shaped clamping connector to abut against the end of the sleeve, and the end, away from the T-shaped clamping connector, of the sliding rod extends out of the other end of the sleeve. And the flange is provided with a linear through hole corresponding to the T-shaped clamping head. The locking assembly is used for fixing the flange of the mold shell, mold fixing can be achieved only by pressing and rotating, mold fixing can be relieved only by rotating, and the assembling and disassembling efficiency of the mold is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of rotational molding process, in particular to a rotomolded mold convenient to assemble and disassemble. BACKGROUND

[0002] Rotational molding, also known as rotomolding, rotational molding, and rotational molding, is a method of hollow molding of thermoplastic plastics. This method is to first add plastic raw materials to the mold, then rotate the mold along two vertical axes and heat it. The plastic raw materials in the mold are gradually and evenly coated, melted and adhered to the entire surface of the mold cavity under the action of gravity and heat energy, shaped into the required shape, and then cooled and shaped into a product. Rotational molding molds are mainly fixed by using quick locks.

[0003] In related art, when the mold is constantly rotating and heating, a quick lock is used to fix the rotational molding mold, and the existing quick lock has poor strength. In order to ensure the connection strength, many are often used, which is very cumbersome to assemble, affecting production efficiency.

[0004] In view of the above related technologies, in order to make the fixing operation of the rotational molding mold more convenient and the locking effect more reliable, the applicant designs a rotational molding mold convenient to assemble and disassemble. Practical new type content

[0005] In order to solve the problem of cumbersome assembly of conventional rotational molding molds, the present application provides a rotational molding mold convenient to assemble and disassemble, which has the effect of convenient mold assembly operation.

[0006] The rotational molding mold convenient to assemble and disassemble provided by the present application adopts the following technical scheme:

[0007] A rotational molding mold convenient to assemble and disassemble, comprising an upper mold shell, a lower mold shell and a locking assembly, the edges of the upper mold shell and the lower mold shell are provided with flanges for connection; the locking assembly comprises a sleeve, a sliding rod and an elastic member; the sleeve is fixed on the flange of the upper mold shell, and the sleeve is located on the side away from the lower mold shell; the sliding rod is slidingly installed in the sleeve, one end of the sliding rod close to the flange is provided with a T-shaped clamping joint, the T-shaped clamping joint is larger than the end profile of the sleeve, the elastic member is arranged between the sliding rod and the sleeve to make the T-shaped clamping joint abut against the end of the sleeve, and the end of the sliding rod away from the T-shaped clamping joint extends from the other end of the sleeve; a one-way hole is provided on the flange corresponding to the T-shaped clamping joint.

[0008] By adopting the technical scheme, the flanges are arranged at the edges of the upper die shell and the lower die shell, the upper die shell and the lower die shell are conveniently fixed and connected, and the locking assembly can be directly installed on the flanges; in the initial state, the elastic member props up the sliding rod, the T-shaped joint is clamped at the end of the sleeve and located in the linear hole of the flange of the upper die shell, and the upper die shell and the lower die shell are in an unfixed state; when the upper die shell and the lower die shell need to be fixed, the sliding rod is first pressed downward, the T-shaped joint passes through the linear holes of the two flanges, the sliding rod is rotated by 90 degrees, the T-shaped joint and the linear hole form a cross structure, and the T-shaped joint cannot pass through the linear hole; the sliding rod is loosened and rises under the action of the elastic member, the sleeve clamps and fixes the two flanges to fix the upper die shell and the lower die shell. By pressing and rotating the sliding rod, the flanges can be quickly fixed, the operation is convenient and fast, and the assembly efficiency of the mold is improved.

[0009] Optionally, the locking assembly further comprises a handle fixed on the sliding rod.

[0010] By adopting the technical scheme, the handle is arranged on the locking assembly, the handle is fixedly connected with the sliding rod, and the worker can conveniently control the movement or rotation of the sliding rod through the handle.

[0011] Optionally, a guide bevel gradually rising in a clockwise direction along a circumference is arranged at the top of the sleeve; when the T-shaped joint is clamped with the bottom of the flange of the lower die shell, the handle abuts against the end surface of the sleeve away from the lower die shell.

[0012] By adopting the technical scheme, the guide bevel gradually rising in a clockwise direction along a circumference is arranged at the top of the sleeve, the handle rises along the guide bevel when the handle is rotated clockwise, and the handle rising synchronously drives the sliding rod and the T-shaped joint to rise; when the handle rises to the highest point of the guide bevel, that is, the handle is attached to the end surface of the sleeve away from the lower die shell, the T-shaped joint rises to be clamped with the bottom of the flange of the lower die shell, and the two flanges and the sleeve are clamped and fixed between the handle and the T-shaped joint, so that the fixing of the upper die shell and the lower die shell is completed.

[0013] Optionally, an insertion hole is arranged at one end of the handle, a connecting column matched with the insertion hole is arranged at the end of the sliding rod away from the T-shaped joint, a second screw hole communicating with the insertion hole is arranged through the side wall of the handle, and a screw is arranged in the second screw hole to abut against the connecting column; a threaded column is arranged at the end of the connecting column away from the sliding rod, a nut is screwed on the threaded column, and the nut abuts against the handle.

[0014] By adopting the technical scheme, the insertion hole is arranged at one end of the handle to sleevedly connect the sliding rod, the second screw hole is arranged through the side wall of the handle at the position corresponding to the insertion hole, the screw is used to pass through the second screw hole to abut against the connecting column to fix the handle and the connecting column and fix the axial position of the handle, the connecting column is inserted into the handle to form reliable circumferential fixation, so that the handle drives the connecting column and the sliding rod to rotate, the nut is screwed on the threaded column, the nut abuts against the handle, the nut can limit the height of the handle, the axial position of the handle is ensured not to change, and the handle and the T-shaped clamping joint are clamped and fixed to the two flanges.

[0015] Optionally, the handle is a long strip body, and a weight-reducing groove is arranged on the side wall of the handle.

[0016] By adopting the technical scheme, the handle is arranged to have a large size, so that the worker can conveniently hold and operate the handle, the weight-reducing groove is arranged on the handle to reduce the material and the weight of the handle without affecting the size of the handle, and the weight of the handle is reduced, so that the locking operation of the mold is further facilitated.

[0017] Optionally, a fixing ring is fixed on the sliding rod, and the elastic member is arranged to abut against the fixing ring and the bottom of the sleeve.

[0018] By adopting the technical scheme, the fixing ring is fixed on the sliding rod, and the elastic member is arranged to abut against the fixing ring and the bottom of the sleeve, when no external force acts on the sliding rod, the elastic member can abut against the fixing ring to make the sliding rod rise, so that the T-shaped clamping joint abuts against the end of the sleeve, the automatic reset of the sliding rod is realized, and the upper mold shell and the lower mold shell are conveniently separated.

[0019] Optionally, the elastic member is a spring, and the spring is sleeved on the sliding rod.

[0020] By adopting the technical scheme, the spring is selected as the elastic member, the spring is horizontally sleeved on the sliding rod along the length direction of the sliding rod, the spring can maintain stable shape and performance under the condition of continuously changing heavy load and deformation, the spring has high reliability as the elastic member, and is durable.

[0021] Optionally, an abutting plate is arranged on the abutting surface of the flange of the lower mold shell and the T-shaped clamping joint, when the T-shaped clamping joint is clamped with the abutting plate, the handle abuts against the end surface of the sleeve away from the lower mold shell.

[0022] By adopting the technical scheme, the abutting plate is arranged on the flange of the lower mold shell and abuts against the T-shaped clamping joint, direct contact between the flange and the T-shaped clamping joint is avoided, and wear of the flange is prevented; the abutting plate can be made of high-strength metal which is not easy to wear, so that a long service life is ensured.

[0023] Optionally, a fixing plate is fixed on one side of the sleeve close to the flange, and the fixing plate and the flange of the upper mold shell are fixed by screws.

[0024] By adopting the technical scheme, the fixing plate is arranged on the sleeve to be connected with the flange of the upper mold shell, and the fixing plate and the flange of the upper mold shell are fixed and installed by screws, which is convenient.

[0025] Optionally, the fixing ring sliding sleeve is arranged on the sliding rod, a first screw hole is formed through the side wall of the fixing ring in the circumferential direction, a screw is arranged in the first screw hole, and the screw abuts against the side wall of the sliding rod.

[0026] By adopting the technical scheme, the worker can loosen the screw to slide and adjust the position of the fixing ring, so as to adjust the compression length of the elastic member to change the effect of the force of the elastic member. The force of the elastic member can be adjusted according to different use scenarios and requirements.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] 1. The application discloses a rotomolding mold which is convenient to assemble and disassemble. Flanges are arranged at the edges of an upper mold shell and a lower mold shell, so that the upper mold shell and the lower mold shell are conveniently fixed and connected, and a locking assembly is directly installed on the flanges. In an initial state, an elastic member supports a sliding rod, a T-shaped joint is clamped at the end of a sleeve and located in a linear hole of the flange of the upper mold shell, and the upper mold shell and the lower mold shell are in an unfixed state. When the upper mold shell and the lower mold shell need to be fixed, the sliding rod is first pressed downward, the T-shaped joint passes through the linear hole of the two flanges, the sliding rod is rotated by 90 degrees, the T-shaped joint and the linear hole form a cross structure, and the T-shaped joint cannot pass through the linear hole. The sliding rod is loosened, and the sliding rod rises under the action of the elastic member. The sleeve cooperates with the T-shaped joint to clamp and fix the two flanges, so that the upper mold shell and the lower mold shell are fixed. The flanges can be quickly fixed by pressing and rotating the sliding rod, so that the operation is convenient and fast, and the assembly efficiency of the mold is improved.

[0029] 2. The application discloses a guide bevel which gradually rises in the clockwise direction in the circumferential direction at the top of the sleeve. When the handle is rotated clockwise, the handle will rise along the guide bevel, and the handle rising synchronously drives the sliding rod and the T-shaped joint to rise. When the handle rises to the highest point of the guide bevel, that is, the handle is attached to the end face of the sleeve away from the lower mold shell, the T-shaped joint rises to the bottom of the flange of the lower mold shell and is clamped tightly, the two flanges and the sleeve are clamped and fixed between the handle and the T-shaped joint, the fixing of the upper mold shell and the lower mold shell is completed, and the fixing effect is stable and reliable.

[0030] 3. The application discloses a fixing ring arranged on the sliding rod. By adopting the technical scheme, the worker can loosen the screw to slide and adjust the position of the fixing ring, so as to adjust the compression length of the elastic member to change the effect of the force of the elastic member. The force of the elastic member can be adjusted according to different use scenarios and requirements, and the locking assembly is further facilitated to operate. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present application;

[0032] Figure 2 is a schematic diagram of the structure of a locking assembly;

[0033] Figure 3 is a schematic diagram of the clamping action of a T-shaped clamping joint;

[0034] Figure 4 is a schematic diagram of a cross-sectional view of a locking assembly;

[0035] Figure 5 is Figure 4 is an enlarged view of region A in

[0036] BRIEF DESCRIPTION OF DRAWINGS: 1, upper mold shell; 2, lower mold shell; 3, flange; 31, linear hole; 4, locking assembly; 41, sleeve; 411, fixed plate; 412, guide bevel; 413, sliding hole; 42, sliding rod; 421, threaded column; 422, connecting column; 423, T-shaped clamping joint; 43, fixed ring; 431, first screw hole; 44, elastic member; 45, handle; 451, insertion hole; 452, weight-reducing groove; 453, second screw hole; 46, nut; 5, abutting plate. DETAILED DESCRIPTION

[0037] The following will be described in detail in combination with the accompanying Figures 1-5 The present application will be described in further detail.

[0038] Referring to Figure 1 , the embodiment of the present application discloses a rotomolding mold convenient to assemble and disassemble, comprising an upper mold shell 1, a lower mold shell 2 and a locking assembly 4, the edges of the upper mold shell 1 and the lower mold shell 2 are provided with flanges 3 connected in cooperation, and the locking assembly 4 is installed on the flange 3 of the upper mold shell 1 and clamps and fixes the two flanges 3. Linear holes 31 are provided on the flanges 3 of the upper mold shell 1 and the lower mold shell 2 corresponding to the installation positions of the locking assembly 4.

[0039] Referring to Figure 1 and Figure 2 , the locking assembly 4 comprises a handle 45, a sleeve 41 and a sliding rod 42.

[0040] Referring to Figure 1 and Figure 3, the T-shaped clamping joint 423 is located at the bottom of the sleeve 41 and in the linear hole 31 of the flange 3, the T-shaped clamping joint 423 passes through the linear hole 31 of the flange 3 by pressing the sliding rod 42, the T-shaped clamping joint 423 cannot pass through the linear hole 31 by rotating the sliding rod 42 clockwise, and the T-shaped clamping joint 423 abuts against the lower side wall of the flange 3 of the lower mold shell 2 under the action of the elastic member 44. The abutting surface of the flange 3 of the lower mold shell 2 and the T-shaped clamping joint 423 is provided with an abutting plate 5, the abutting plate 5 is fixed with the flange 3 of the lower mold shell 2 by screws, and the abutting plate 5 is clamped with the T-shaped clamping joint 423 to slow down the wear of the flange 3 of the lower mold shell 2.

[0041] Reference Figure 4 And Figure 5 The bottom of the sleeve 41 is welded and fixed with a fixed plate 411, and the fixed plate 411 is connected with the flange 3 of the upper mold shell 1 by screws to fix the sleeve 41 on the flange 3 of the upper mold shell 1.

[0042] The end of the sliding rod 42 away from the T-shaped clamping joint 423 is sequentially coaxially provided with a connecting column 422 and a threaded column 421, and the connecting column 422 is a quadrangular prism; the cross-sectional contour of the connecting column 422 is smaller than that of the sliding rod 42, and the cross-sectional contour of the threaded column 421 is located within the cross-sectional contour of the connecting column 422. One end of the handle 45 is provided with a quadrangular insertion hole 451, which is a quadrangular through hole matched with the insertion of the connecting column 422; a second screw hole 453 is provided on the side wall of the handle 45 corresponding to the insertion hole 451, and the second screw hole is provided with a screw abutting against the connecting column 422; a nut 46 is screwed on the threaded column 421, and the nut 46 serves as a limit in the axial direction of the handle 45; a weight-reducing groove 452 is provided on the side wall of the handle 45 to reduce the weight of the handle for easy operation.

[0043] Reference Figure 2 A guide bevel 412 is provided on the top of the sleeve 41, and the guide bevel 412 is arranged clockwise along the circumferential direction; the handle 45 is lifted under the action of the guide bevel 412 by rotating the handle 45 clockwise. The handle 45 is first abutted against the bottom of the guide bevel 412 by pressing the handle 45; the handle 45 is rotated and lifted along the bevel to abut against the top of the bevel by rotating the handle 45 clockwise, and the T-shaped clamping joint 423 is tightly abutted against the flange 3 of the lower mold shell 2, thereby forming clamping and fixing of the two flanges 3.

[0044] Reference Figure 4 And Figure 5The locking assembly further comprises an elastic member 44, which is arranged in the sleeve 41 together with the sliding rod 42. The elastic member 44 is a spring, which is sleeved on the sliding rod 42. The bottom of the sleeve 41 is provided with a sliding hole 413, which is in sliding cooperation with the sliding rod 42. The sliding rod 42 is provided with a fixing ring 43. The elastic member 44 is arranged in abutment between the fixing ring 43 and the bottom of the sleeve 41. The spring is in abutment with the fixing ring 43 to support the sliding rod 42 to rise. The T-shaped clamping joint 423 is clamped with the bottom of the sleeve 41 to limit the rising of the sliding rod 42. The first screw hole 431 is formed through the sidewall of the fixing ring 43. The screw is arranged in the first screw hole 431 to abut the sliding rod 42, so as to fix the relative position of the fixing ring 43 and the sliding rod 42. After the screw is loosened, the axial position of the fixing ring 43 can be adjusted, and the supporting force of the elastic member 44 can be changed.

[0045] In the initial state, the elastic member 44 supports the sliding rod 42. The T-shaped clamping joint 423 is clamped at the end of the sleeve 41 and located in the linear hole 31 of the flange 3 of the upper mold shell 1. The upper mold shell 1 and the lower mold shell 2 are in an unfixed state. When the upper mold shell 1 and the lower mold shell 2 need to be fixed, the handle 45 is first pressed downward. The T-shaped clamping joint 423 moves synchronously through the linear hole 31 of the two flanges 3. The handle 45 rotates upward along the guide bevel 412. The T-shaped clamping joint 423 rotates upward synchronously. When the handle 45 rises to the highest point and abuts the top plane of the sleeve 41, the T-shaped clamping joint 423 is cross-shapedly clamped with the linear hole 31 of the flange 3. The handle 45 is loosened. The two flanges 3 and the sleeve 41 are clamped and fixed between the handle 45 and the T-shaped clamping joint 423. The fixing of the upper mold shell 1 and the lower mold shell 2 is completed.

[0046] The implementation principle of the embodiment is that the T-shaped clamping joint 423 on the flange 3 and the sliding rod 42 cooperates. The T-shaped clamping joint 423 is located in the linear hole 31 of the flange 3. The mold is in a separated state. The sliding rod 42 is pressed downward and then rotated. The T-shaped clamping joint 423 passes through the linear hole 31 and is clamped with the flange 3 by rotating. The fixing of the mold is realized. By controlling the movement of the sliding rod 42, the T-shaped clamping joint 423 is in two different states of being clamped with the flange 3 in the linear hole 31 or passing through the linear hole 31. According to the requirement, the mold can be fixed and separated by pressing and rotating once. The efficiency of assembling and disassembling the mold is improved. The fixing between the molds is more reliable.

[0047] The above are the preferred embodiments of the application, which do not limit the protection scope of the application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A rotational molding mold that is easy to assemble and disassemble, comprising an upper mold shell (1), a lower mold shell (2) and a locking assembly (4), characterized in that: The edges of the upper mold shell (1) and the lower mold shell (2) are both provided with flanges (3) for connection; the locking assembly (4) comprises a sleeve (41), a sliding rod (42) and an elastic member (44); the sleeve (41) is fixed on the flange (3) of the upper mold shell (1), and the sleeve (41) is located on the side of the flange (3) away from the lower mold shell (2); the sliding rod (42) is slidably installed in the sleeve (41), and a T-shaped clip is provided at one end of the sliding rod (42) close to the flange (3). The T-shaped snap joint (423) is larger than the end profile of the sleeve (41), the elastic member (44) is arranged between the sliding rod (42) and the sleeve (41) so that the T-shaped snap joint (423) is pressed against the end of the sleeve (41), and one end of the sliding rod (42) away from the T-shaped snap joint (423) extends from the other end of the sleeve (41); and a straight through hole (31) is provided on the flange (3) corresponding to the T-shaped snap joint (423).

2. A rotational molding mold that is easy to assemble and disassemble according to claim 1, characterized in that: The locking assembly (4) further includes a handle (45), and the handle (45) is fixed on the sliding rod (42).

3. The rotational molding mold that is easy to assemble and disassemble according to claim 2, characterized in that: The top of the sleeve (41) is provided with a guiding bevel (412) which gradually rises in a clockwise direction along the circumference; when the T-shaped clamping joint (423) is clamped with the bottom of the flange (3) of the lower mold shell (2), the handle (45) abuts against the end surface of the sleeve (41) away from the lower mold shell (2).

4. The rotational molding mold that is easy to assemble and disassemble according to claim 3, characterized in that: A socket (451) is provided through one end of the handle (45); a connecting column (422) is provided at one end of the sliding rod (42) away from the T-shaped card joint (423) and is engaged with the socket (451) socket; a second screw hole (453) is provided through the side wall of the handle (45) and is connected to the socket (451); a screw is installed in the second screw hole (453) to press against the connecting column (422); a threaded column (421) is provided at one end of the connecting column (422) away from the sliding rod (42); a nut (46) is screwed onto the threaded column (421), and the nut (46) abuts against the handle (45).

5. The rotational molding mold that is easy to assemble and disassemble according to claim 2, characterized in that: The handle (45) is a long frame, and a weight-reducing groove (452) is provided on the side wall of the handle (45).

6. The rotational molding mold that is easy to assemble and disassemble according to claim 1, characterized in that: A fixing ring (43) is fixed on the sliding rod (42), and the elastic member (44) is tightly arranged between the fixing ring (43) and the bottom of the sleeve (41).

7. The rotational molding mold that is easy to assemble and disassemble according to claim 6, characterized in that: The elastic member (44) is a spring, and the spring is sleeved on the sliding rod (42).

8. The rotational molding mold that is easy to assemble and disassemble according to claim 3, characterized in that: The contact surface between the flange (3) of the lower mold shell (2) and the T-shaped clamping joint (423) is provided with an abutting plate (5); when the T-shaped clamping joint (423) and the abutting plate (5) are clamped, the handle (45) abuts against the end surface of the sleeve (41) away from the lower mold shell (2).

9. The rotational molding mold that is easy to assemble and disassemble according to claim 1, characterized in that: A fixing plate (411) is fixed to one side of the sleeve (41) close to the flange (3), and the fixing plate (411) is fixed to the flange (3) of the upper mold shell (1) by screws.

10. The rotational molding mold that is easy to assemble and disassemble according to claim 6, characterized in that: The fixing ring (43) is slidingly sleeved on the sliding rod (42), and a first screw hole (431) is provided through the peripheral side wall of the fixing ring (43), and a screw is installed in the first screw hole (431) to abut against the side wall of the sliding rod (42).

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