Forming die for tissue box with stitched textures

Abstract

The utility model discloses a suture texture tissue box forming die which comprises an upper die and a lower die which are buckled with each other, the upper die is provided with a sprue piece and an upper die cavity, the lower die is provided with a lower die core, the upper die cavity and the lower die core are matched with each other, and the upper die cavity comprises a movable cavity and an upper cavity; the lower mold core comprises a fixed mold core and four side pulling cores, inclined guide holes penetrate through the side pulling cores, and the upper mold is provided with inclined guide columns matched with the inclined guide holes in an inserted mode; the upper mold cavity is provided with an outer male mold, an annular suture cavity is formed in the position, surrounding the outer male mold, of the upper mold cavity, the upper mold cavity is symmetrically provided with two first suture cavities, and second suture cavities are formed in the positions, corresponding to the first suture cavities, of the side loose core. According to the forming mold for the tissue box with the suture textures, the formed box body is prevented from being stuck in the mold in the demolding process, the seam textures on the box body cannot be strained and damaged, and the forming precision of a product is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a stitching texture tissue box forming mold. Background Art

[0002] At present, most of the traditional injection-molded tissue boxes are ordinary plastic products, mostly used to store tissues, and tissue boxes usually have patterns to decorate the interior. Figure 1 The tissue box shown in the figure comprises a box body 19, the top of the box body 19 is provided with a paper withdrawal opening 1901, and the top portion of the box body 19 surrounding the paper withdrawal opening 1901 and the outer wall thereof are provided with a second stitching texture 1902 and a second stitching texture 1903 respectively.

[0003] In the production process of the tissue box, a molding mold is required, specifically, the heated and melted plastic is injected into the mold cavity by the injection molding machine under high pressure, and the molded product is obtained after cooling and solidification. When the injection mold is used to manufacture the tissue box, due to the complex gap texture of the box body, sometimes the molded box body is easily attached to the mold during demolding, resulting in the gap texture on the box body being easily damaged during demolding and removing, affecting the quality of the product. Utility Model Content

[0004] The utility model aims to solve the deficiencies of the above-mentioned technology and is designed to provide a suture texture tissue box forming mold, which prevents the formed box body from sticking to the mold during demoulding, does not damage the slit texture on the box body, and ensures the product forming accuracy.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a stitching texture tissue box forming mold, comprising an upper mold and a lower mold that are interlocked, the upper mold is provided with a gate piece, the upper mold is provided with an upper mold cavity, the lower mold is provided with a lower mold core, the upper mold cavity and the lower mold core cooperate with each other, and the upper mold cavity includes a movable cavity and an upper mold cavity;

[0006] The lower mold core includes a fixed mold core fixedly arranged on the lower mold, four side core pulls arranged around the fixed mold core and slidably connected to the lower mold in a straight line direction, the movable cavity is used for the movement of each side core pull, an elastic reset member is provided between the side core pull and the fixed mold core, so that the side core pull has a tendency to move close to the travel block 501, the side core pull is penetrated by an inclined guide hole, and the upper mold is provided with an inclined guide column plugged with the inclined guide hole;

[0007] Each of the side core pulls cooperates with the fixed mold core to form a first molding cavity, and the fixed mold core cooperates with the upper mold cavity to form a second molding cavity. The first molding cavity and the second molding cavity cooperate to form a box body, and the upper mold cavity is provided with an outer convex mold for molding a paper extraction port, and the outer convex mold has an injection channel connected to the gate piece, and the upper mold cavity is provided with an annular stitching cavity for molding a second stitching texture at a position surrounding the outer convex mold, and the upper mold cavity is symmetrically provided with two first stitching cavities, and the side core pulls corresponding to the position of the first stitching cavity are provided with a second stitching cavity, and the second stitching cavity cooperates with the second stitching cavity to mold the second stitching texture.

[0008] Preferably, the lower mold is provided with a slide groove, and the bottom of the side core pulling is provided with a stroke plate, and the stroke plate is slidably connected in the corresponding slide groove.

[0009] Preferably, a pressure strip is embedded on the top surface of the lower mold at positions corresponding to both sides of the slide groove, and the side walls of the pressure strip cooperate with the inner side walls of the slide groove adjacent to it to form a step cavity, and the travel plate cooperates with the step cavity in a concave-convex manner.

[0010] Preferably, a docking ring is sleeved on the bottom of the fixed mold core, a positioning groove is opened on the lower mold for the docking ring to be inserted, a docking part is arranged on the side wall of the side core close to the fixed mold core, and the part of the docking ring extending out of the positioning groove is matched with the concave and convex parts of each docking part.

[0011] Preferably, a mounting plate and a cooling channel arranged inside the mounting plate are provided at the bottom of the lower mold, and first cooling pipes are arranged inside the outer punch, the fixed mold core and the docking ring, and the cooling channel is connected to each first cooling channel.

[0012] Preferably, a second cooling pipe is provided inside the side core pulling device, and an input end and an output end of the second cooling pipe are both arranged on the outer wall of the stroke plate.

[0013] Preferably, a plurality of guide posts are arranged around the lower mold, and a plurality of first guide sleeves are arranged around the upper mold, each of the guide posts corresponds to each of the first guide sleeves, and the guide posts are plug-fitted with the corresponding first guide sleeves.

[0014] Preferably, the lower mold is sleeved and matched with the bottom of the fixed mold core, the mounting plate is provided with a mounting groove for fixedly mounting the fixed mold core, a base is provided below the lower mold, two square irons are symmetrically provided between the base and the lower mold, a ejection plate is slidably connected between the two square irons, the base is penetrated with an operating hole corresponding to the ejection plate, a buffer column is provided around the ejection plate, the mounting plate is penetrated with a movable hole for the buffer column to pass through, the end of the buffer column extending out of the movable hole is fixedly connected to the lower mold, the buffer column is provided with an elastic member, and the two ends of the elastic member respectively abut against the opposite sides of the mounting plate and the ejection plate.

[0015] Preferably, the bottom end of the guide column is fixedly connected to the mounting plate, and the lower mold is provided with a second guide sleeve for plugging and fitting with the guide column.

[0016] Preferably, the base is fixedly connected to a plurality of support columns arranged in a straight line, the top surface of each support column is in contact with the bottom surface of the mounting plate, the top plate is penetrated by a socket for the support column to be plugged in, and two limit columns are symmetrically arranged on the top plate near the support column.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model discloses a stitching texture tissue box forming mold. In the process of closing the upper mold and the lower mold, the upper mold is linked to the side core pulling to overcome the elastic reset part and horizontally move inwardly and synchronously close to the fixed mold core to form a first forming cavity through the cooperation of the inclined guide column and its corresponding inclined guide hole. Until the upper mold and the lower mold are completed to close the mold, the fixed mold core cooperates with the upper cavity to form a second forming cavity. The first forming cavity and the second forming cavity cooperate to form a box body. The outer convex mold is used to form a paper extraction port. The annular stitching cavity is used to form a second stitching texture. The first stitching cavity cooperates with the corresponding second stitching cavity to form the second stitching texture. After the stitching texture tissue box is completed, when the upper mold is separated from the lower mold for demoulding, each upper mold is linked to the side core pulling to move horizontally and synchronously inwardly away from the fixed mold core, so that the second stitching texture is demoulded in the demoulding process. It is prevented that the formed box body is stuck in the mold during the demoulding process, and the gap texture on the box body is not damaged, thereby ensuring the molding accuracy of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the structure of the tissue box manufactured by the molding die in the embodiment;

[0020] Figure 2 is a schematic structural diagram of the molding die in the embodiment;

[0021] Figure 32 is a schematic structural diagram of an upper mold in an embodiment;

[0022] Figure 4 is a cross-sectional view of the molding die when the molding die is closed in the embodiment;

[0023] Figure 5 is a cross-sectional view of a first molding cavity and a second molding cavity in an embodiment;

[0024] Figure 6 2 is a schematic structural diagram of a lower mold in an embodiment;

[0025] Figure 7 It is a cross-sectional view of the lower mold when the cores on each side are separated from the fixed mold core in the embodiment;

[0026] Figure 8 Schematic diagram of the structure of the core pulling on each side in the embodiment.

[0027] In the figure: 1, upper mold; 101, gate piece; 102, oblique guide column; 103, first guide sleeve; 2, lower mold; 201, slide groove; 202, pressure strip; 203, positioning groove; 204, second guide sleeve; 3, upper mold cavity; 31, movable cavity; 32, upper mold cavity; 301, outer punch; 302, injection channel; 4, lower mold core; 41, fixed mold core; 42, side core pulling; 421, oblique guide hole; 422, docking part; 423, travel plate; 5, supporting guide rail; 501, travel block; 6, elastic reset member; 7, docking ring; 8, mounting plate; 801, cooling channel; 802, mounting groove; 803, movable hole; 9, first cooling tube; 10, second cooling tube; 11, guide column; 12, base; 1201, operation hole; 1202, support column; 13, square iron; 1301, top plate; 1302, buffer column; 1303, elastic member; 1304, jack; 1305, limit column; 14, first molding cavity; 15, second molding cavity; 16, annular suture cavity; 17, first suture cavity; 18, second suture cavity; 19, box body; 1901, paper extraction port; 1902, second suture texture; 1903, second suture texture. DETAILED DESCRIPTION

[0028] The present invention will be further described below by way of embodiments in conjunction with the accompanying drawings.

[0029] refer to Figures 1 to 8A stitch texture tissue box forming mold comprises an upper mold 1, a lower mold 2 and a base 12. The base 12 is arranged below the lower mold 2. Two square irons 13 are symmetrically arranged between the base 12 and the lower mold 2 for supporting the lower mold 2. The upper mold 1 is provided with a gate piece 101, the upper mold 1 is provided with an upper mold cavity 3, and the lower mold 2 is provided with a lower mold core 4. The upper mold cavity 3 and the lower mold core 4 cooperate with each other. The upper mold cavity 3 includes a movable cavity 31 and an upper mold cavity 32. The lower mold core 4 includes a fixed mold core 41 fixedly arranged on the lower mold 2, and four side core pulls 42 arranged around the fixed mold core 41 and slidably connected to the lower mold 2. The lower mold 2 is provided with a slide groove 201, and the bottom of the side core pull 42 is integrally formed with a stroke plate 423, and the stroke plate 423 is slidably connected to the corresponding slide groove 201. A pressure strip 202 is embedded on the top surface of the lower mold 2 at positions on both sides of the slide groove 201. The side wall of the pressure strip 202 cooperates with the inner side wall of the slide groove 201 close to it to form a step cavity, and the stroke plate 423 cooperates with the step cavity to limit the side core pull 42 in the slide groove 201 and make the horizontal movement of the side core pull 42 more stable.

[0030] The lower mold 2 is symmetrically provided with two supporting guide rails 5 relative to the position of the side core pull 42, and a travel block 501 is provided on the supporting guide rails 5. An elastic reset member 6 is provided between the side core pull 42 and the fixed mold core 41, so that the side core pull 42 has a tendency to translate close to the travel block 501. The elastic reset member 6 is a spring structure. An inclined guide hole 421 is penetrated on the travel plate 423 of the side core pull 42, and the upper mold 1 is provided with an inclined guide column 102 plugged with the inclined guide hole 421; each side core pull 42 cooperates with the fixed mold core 41 to form a first molding cavity 14, and the fixed mold core 41 cooperates with the upper mold cavity 32 to form a second molding cavity 1 5. The first molding cavity 14 cooperates with the second molding cavity 15 to mold the box body 19. The upper mold cavity 32 is provided with an outer punch 301 for molding a paper extraction port 1901. The outer punch 301 has an injection channel 302 connected to the gate piece 101. The upper mold cavity 3 is provided with an annular stitch cavity 16 for molding the second stitch texture 1903 at a position surrounding the outer punch 301. The upper mold cavity 3 is symmetrically provided with two first stitch cavities 17. The side core pulling 42 corresponding to the position of the first stitch cavity 17 is provided with a second stitch cavity 18. The second stitch cavity 18 cooperates with the second stitch cavity 18 to mold the second stitch texture 1903.

[0031] A plurality of guide posts 11 are arranged around the lower mold 2, and a plurality of first guide sleeves 103 are arranged around the upper mold 1. Each guide post 11 corresponds to each first guide sleeve 103, and the guide post 11 is plugged into and matched with the corresponding first guide sleeve 103, so that the upper mold 1 and the lower mold 2 are aligned and interlocked with each other.

[0032] During the mold closing process of the upper mold 1 and the lower mold 2, the movable cavity 31 accommodates the side core pulls 42 and allows the side core pulls 42 to move. Through the cooperation of the inclined guide column 102 and its corresponding inclined guide hole 421, the mold closing action of the upper mold 1 and the lower mold 2 can link the side core pulls 42 to overcome the elastic reset part 6 and horizontally inwardly approach the fixed mold core 41 to form a first molding cavity 14. Until the upper mold 1 and the lower mold 2 are completed, the fixed mold core 41 cooperates with the upper cavity 32 to form a second molding cavity 15. The first molding cavity 14 and the second molding cavity 15 are used to form a box body 19. The outer punch 301 is used to form a paper extraction port 1901. The annular stitch cavity 16 is used to form a second stitch texture 1903. The first stitch cavity 17 and the corresponding second stitch cavity 18 are used to form a second stitch texture 1903.

[0033] After the stitched texture tissue box is formed, the upper mold 1 is separated from the lower mold 2 for demolding, and each upper mold 1 links the side core pullers 42 to move horizontally inward and away from the fixed mold core 41 synchronously, and the elastic reset member 6 restores the deformation to assist the corresponding side core pullers 42 to move outward along the supporting guide rail 5, so that the second stitched texture 1903 can be demolded during the demolding process, preventing the molded box body 19 from sticking to the mold during the demolding process, and will not tear and damage the gap texture on the box body 19, thereby ensuring the product molding accuracy.

[0034] Until the travel plate 423 of the side core pull 42 conflicts with the travel block 501 of the supporting guide rail 5, the travel block 501 prevents the side core pull 42 from continuing to move horizontally outward, preventing the side core pull 42 from detaching from the lower mold 2. At this time, the demolding operation of the outer wall portion of the box body 19 is completed.

[0035] The bottom of the fixed mold core 41 is provided with a docking ring 7, the lower mold 2 is provided with a positioning groove 203 for the docking ring 7 to be inserted, and the side core pulling 42 is provided with a docking portion 422 on the side wall close to the fixed mold core 41. Preferably, the docking portion 422 is a groove structure, and the portion of the docking ring 7 extending out of the positioning groove 203 is matched with each docking portion 422 in a concave-convex manner, so that each side core pulling 42 and the fixed mold core 41 are accurately aligned.

[0036] The bottom of the lower mold 2 is provided with a mounting plate 8 and a cooling channel 801 disposed inside the mounting plate 8. The mounting plate 8 is provided with a mounting groove 802 for fixing the fixed mold core 41. The outer punch 301, the fixed mold core 41, and the docking ring 7 are all provided with a first cooling pipe 9. The cooling channel 801 is connected with each first cooling channel 801 to cool the inner wall of the molding box body 19. The side core 42 is provided with a second cooling pipe 10. The input end and the output end of the second cooling pipe 10 are both arranged on the outer wall of the stroke plate 423 to cool the outer wall of the molding box body 19.

[0037] A top plate 1301 is slidably connected between the two square irons 13, an operating hole 1201 corresponding to the top plate 1301 is penetrated through the base 12, a buffer column 1302 is arranged around the top plate 1301, a movable hole 803 is penetrated through the mounting plate 8 for the buffer column 1302 to pass through, the end of the buffer column 1302 extending out of the movable hole 803 is fixedly connected to the lower mold 2, and the buffer column 1302 is provided with an elastic member 1303, and the two ends of the elastic member 1303 are respectively abutted on the opposite sides of the mounting plate 8 and the top plate 1301. Preferably, the elastic member 1303 is a spring structure, the elastic member 1303 is sleeved on the buffer column 1302, and the inner wall of the movable hole 803 is formed with an inner groove for accommodating the elastic member 1303. Under the action of the elastic member 1303, the push plate has a tendency to move away from the mounting plate 8.

[0038] The lower mold 2 is sleeved with the bottom of the fixed mold core 41, the mounting plate 8 is provided with a mounting groove 802 for fixing the fixed mold core 41, the bottom end of the guide column 11 is fixedly connected to the mounting plate 8, and the lower mold 2 is provided with a second guide sleeve 204 for plugging and matching the guide column 11. The external telescopic drive device drives the push plate to move through the operating hole 1201. When the push plate overcomes the elastic members 1303 and approaches the mounting plate 8, the buffer columns 1302 extend out of the movable holes 803 to push the lower mold 2 out to separate it from the mounting plate 8. The lower mold 2 drives the docking ring 7 to move upward relative to the fixed mold core 41, which is used to push the formed box body 19 away from the fixed mold core 41, thereby completing the entire demoulding operation of the box body 19.

[0039] A plurality of support columns 1202 arranged in a straight line are fixedly connected to the base 12, and the top surface of each support column 1202 contacts the bottom surface of the mounting plate 8. The ejection plate 1301 is penetrated with a socket 1304 for the support column 1202 to be inserted, which is used to guide the upward and downward sliding of the ejection plate 1301. Two limit columns 1305 are symmetrically arranged on the ejection plate 1301 near the support column 1202, which are used to limit the ejection stroke of the ejection plate 1301.

[0040] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.

Claims

1. A stitched texture tissue box forming mold, comprising an upper mold (1) and a lower mold (2) that are interlocked, wherein the upper mold (1) is provided with a gate member (101), and is characterized in that: The upper mold (1) is provided with an upper mold cavity (3), the lower mold (2) is provided with a lower mold core (4), the upper mold cavity (3) and the lower mold core (4) cooperate with each other, and the upper mold cavity (3) includes a movable cavity (31) and an upper mold cavity (32); The lower mold core (4) includes a fixed mold core (41) fixedly arranged on the lower mold (2), four side core pulls (42) arranged around the fixed mold core (41) and slidably connected to the lower mold (2) in a straight line direction, the movable cavity (31) is provided for the movement of each of the side core pulls (42), an elastic reset member (6) is provided between the side core pulls (42) and the fixed mold core (41), so that the side core pulls (42) have a tendency to translate close to the travel block (501), the side core pulls (42) are penetrated by an inclined guide hole (421), and the upper mold (1) is provided with an inclined guide column (102) plugged into and matched with the inclined guide hole (421); Each of the side core pulls (42) cooperates with the fixed mold core (41) to form a first molding cavity (14), and the fixed mold core (41) cooperates with the upper mold cavity (32) to form a second molding cavity (15), the first molding cavity (14) and the second molding cavity (15) cooperate to form a box body (19), the upper mold cavity (32) is provided with an outer convex mold (301) for forming a paper extraction port (1901), and the outer convex mold (301) has an injection channel connected to the gate member (101). (302), the upper mold cavity (3) is provided with an annular stitch cavity (16) for forming a second stitch texture (1903) at a position surrounding the outer convex mold (301), and the upper mold cavity (3) is symmetrically provided with two first stitch cavities (17), and the side core pull (42) corresponding to the position of the first stitch cavity (17) is provided with a second stitch cavity (18), and the second stitch cavity (18) cooperates with the second stitch cavity (18) to form a second stitch texture (1903).

2. The stitching texture tissue box forming mold according to claim 1 is characterized by: The lower mold (2) is provided with a slide groove (201), and the bottom of the side core pull (42) is provided with a travel plate (423), and the travel plate (423) is slidably connected in the corresponding slide groove (201).

3. The stitching texture tissue box forming mold according to claim 2 is characterized by: A pressure strip (202) is embedded on the top surface of the lower mold (2) at positions corresponding to both sides of the slide groove (201), and the side wall of the pressure strip (202) cooperates with the inner side wall of the slide groove (201) adjacent to it to form a step cavity, and the travel plate (423) cooperates with the step cavity in a concave-convex manner.

4. The stitching texture tissue box forming mold according to claim 2 is characterized by: The bottom of the fixed mold core (41) is sleeved with a docking ring (7), the lower mold (2) is provided with a positioning groove (203) for the docking ring (7) to be inserted, and the side core (42) is provided with a docking portion (422) near the side wall of the fixed mold core (41), and the portion of the docking ring (7) extending out of the positioning groove (203) is concavely matched with each of the docking portions (422).

5. The stitched texture tissue box forming mold according to claim 4 is characterized by: The bottom of the lower mold (2) is provided with a mounting plate (8) and a cooling channel (801) arranged inside the mounting plate (8); the outer punch (301), the fixed mold core (41), and the docking ring (7) are all arranged with a first cooling pipe (9); the cooling channel (801) is connected to each first cooling channel (801).

6. The stitching texture tissue box forming mold according to claim 5 is characterized by: A second cooling pipe (10) is arranged inside the side core puller (42), and the input end and the output end of the second cooling pipe (10) are both arranged on the outer wall of the travel plate (423).

7. The stitching texture tissue box forming mold according to claim 5, characterized in that: A plurality of guide columns (11) are arranged around the lower mold (2), and a plurality of first guide sleeves (103) are arranged around the upper mold (1), each of the guide columns (11) corresponds to each of the first guide sleeves (103), and the guide columns (11) are plug-fitted with the corresponding first guide sleeves (103).

8. The stitching texture tissue box forming mold according to claim 7 is characterized by: The lower mold (2) is sleeve-fitted with the bottom of the fixed mold core (41); the mounting plate (8) is provided with a mounting groove (802) for fixing the fixed mold core (41); a base (12) is provided below the lower mold (2); two square irons (13) are symmetrically provided between the base (12) and the lower mold (2); a top material plate (1301) is slidably connected between the two square irons (13); and an operation hole (1201) corresponding to the top material plate (1301) is passed through the base (12). 01), a buffer column (1302) is arranged around the ejection plate (1301), and the mounting plate (8) is penetrated by a movable hole (803) for the buffer column (1302) to pass through, and the end of the buffer column (1302) extending out of the movable hole (803) is fixedly connected to the lower mold (2), and the buffer column (1302) is provided with an elastic member (1303), and the two ends of the elastic member (1303) are respectively abutted against the mounting plate (8) and the opposite sides of the ejection plate (1301).

9. The stitched texture tissue box forming mold according to claim 8, characterized in that: The bottom end of the guide column (11) is fixedly connected to the mounting plate (8), and the lower mold (2) is provided with a second guide sleeve (204) for plugging and matching with the guide column (11).

10. The stitched texture tissue box forming mold according to claim 8, characterized in that: The base (12) is fixedly connected to a plurality of support columns (1202) arranged in a straight line, the top surface of each support column (1202) is in contact with the bottom surface of the mounting plate (8), the ejection plate (1301) is penetrated by a socket (1304) for the support column (1202) to be plugged in, and two limit columns (1305) are symmetrically arranged on the ejection plate (1301) near the support column (1202).

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